binutils-gdb/gdb/location.c

941 lines
25 KiB
C
Raw Normal View History

/* Data structures and API for event locations in GDB.
Copyright (C) 2013-2017 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "gdb_assert.h"
#include "location.h"
#include "symtab.h"
#include "language.h"
#include "linespec.h"
#include "cli/cli-utils.h"
#include "probe.h"
#include "cp-support.h"
#include <ctype.h>
#include <string.h>
/* An event location used to set a stop event in the inferior.
This structure is an amalgam of the various ways
to specify where a stop event should be set. */
struct event_location
{
/* The type of this breakpoint specification. */
enum event_location_type type;
#define EL_TYPE(P) (P)->type
union
{
/* A generic "this is a string specification" for a location.
This representation is used by both "normal" linespecs and
probes. */
char *addr_string;
#define EL_LINESPEC(P) ((P)->u.addr_string)
#define EL_PROBE(P) ((P)->u.addr_string)
/* An address in the inferior. */
CORE_ADDR address;
#define EL_ADDRESS(P) (P)->u.address
Explicit locations: introduce explicit locations This patch add support for explicit locations and switches many linespec locations to this new location type. This patch also converts all linespec locations entered by the user to an explicit representation internally (thus bypassing the linespec parser when resetting the breakpoint). This patch does not introduce any user-visible changes. gdb/ChangeLog: * break-catch-throw.c (re_set_exception_catchpoint): Convert linespec into explicit location. * breakpoint.c (create_overlay_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Convert linespec into explicit location. (update_static_tracepoint): Convert linespec into explicit location. * linespec.c (enum offset_relative_sign, struct line_offset): Move location.h. (struct linespec) <expression, expr_pc, source_filename> <function_name, label_name, line_offset>: Replace with ... <explicit>: ... this. <is_linespec>: New member. (PARSER_EXPLICIT): New accessor macro. (undefined_label_error): New function. (source_file_not_found_error): New function. (linespec_parse_basic): The parser result is now an explicit location. Use PARSER_EXPLICIT to access it. Use undefined_label_error. (canonicalize_linespec): Convert canonical linespec into explicit location. Move string representation of location to explicit_location_to_linespec and use it and explicit_location_to_string to save string representations of the canonical location. (create_sals_line_offset, convert_linespec_to_sals): `ls' contains an explicit location. Update all references. (convert_explicit_location_to_sals): New function. (parse_linespec): Use PARSER_EXPLICIT to access the parser result's explicit location. (linespec_state_constructor): Initialize is_linespec. Use PARSER_EXPLICIT. (linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's result. (event_location_to_sals): For linespec locations, set is_linespec. Handle explicit locations. (decode_objc): 'ls' contains an explicit location now. Update all references. (symtabs_from_filename): Use source_file_not_found_error. * location.c (struct event_location.u) <explicit>: New member. (initialize_explicit_location): New function. (initialize_event_location): Initialize explicit locations. (new_explicit_location, get_explicit_location) (get_explicit_location_const): New functions. (explicit_to_string_internal): New function; most of contents moved from canonicalize_linespec. (explicit_location_to_string): New function. (explicit_location_to_linespec): New function. (copy_event_location, delete_event_location) (event_location_to_string_const, event_location_empty_p): Handle explicit locations. * location.h (enum offset_relative_sign, struct line_offset): Move here from linespec.h. (enum event_location_type): Add EXPLICIT_LOCATION. (struct explicit_location): New structure. (explicit_location_to_string): Declare. (explicit_location_to_linespec): Declare. (new_explicit_location, get_explicit_locationp (get_explicit_location_const, initialize_explicit_location): Declare.
2015-08-12 02:09:35 +02:00
/* An explicit location. */
Mass rename `explicit' -> `explicit_loc'. BuildBot reminded me that "explicit" is a reserved keyword in C++. This patch simply renames all the (illegal) uses of "explicit". This should fix the build errors with --enable-build-with-cxx bots. gdb/ChangeLog * break-catch-throw.c (re_set_exception_catchpoint) Rename reserved C++ keyword "explicit" to "explicit_loc". * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint, update_static_tracepoint): Rename reserved C++ keyword "explicit" to "explicit_loc". * completer.c (collect_explicit_location_matches) (explicit_location_completer): Rename reserved C++ keyword "explicit" to "explicit_loc". * linespec.c (struct linespec) <explicit>: Rename to "explicit_loc". (canonicalize_linespec, create_sals_line_offset) (convert_linespec_to_sals, convert_explicit_location_to_sals) (event_location_to_sals, decode_objc): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.c (struct event_location) <explicit>: Rename to "explicit_loc". (initialize_explicit_location, new_explicit_location) (explicit_location_to_string_internal, explicit_location_to_linespec): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.h (explicit_location_to_string) (explicit_location_to_linespec, initialize_explicit_location) (new_explicit_location): Rename reserved C++ keyword "explicit" to "explicit_loc". * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Rename reserved C++ keyword "explicit" to "explicit_loc".
2015-08-13 18:48:12 +02:00
struct explicit_location explicit_loc;
#define EL_EXPLICIT(P) (&((P)->u.explicit_loc))
} u;
/* Cached string representation of this location. This is used, e.g., to
save stop event locations to file. Malloc'd. */
char *as_string;
#define EL_STRING(P) ((P)->as_string)
};
/* See description in location.h. */
enum event_location_type
event_location_type (const struct event_location *location)
{
return EL_TYPE (location);
}
/* See description in location.h. */
Explicit locations: introduce explicit locations This patch add support for explicit locations and switches many linespec locations to this new location type. This patch also converts all linespec locations entered by the user to an explicit representation internally (thus bypassing the linespec parser when resetting the breakpoint). This patch does not introduce any user-visible changes. gdb/ChangeLog: * break-catch-throw.c (re_set_exception_catchpoint): Convert linespec into explicit location. * breakpoint.c (create_overlay_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Convert linespec into explicit location. (update_static_tracepoint): Convert linespec into explicit location. * linespec.c (enum offset_relative_sign, struct line_offset): Move location.h. (struct linespec) <expression, expr_pc, source_filename> <function_name, label_name, line_offset>: Replace with ... <explicit>: ... this. <is_linespec>: New member. (PARSER_EXPLICIT): New accessor macro. (undefined_label_error): New function. (source_file_not_found_error): New function. (linespec_parse_basic): The parser result is now an explicit location. Use PARSER_EXPLICIT to access it. Use undefined_label_error. (canonicalize_linespec): Convert canonical linespec into explicit location. Move string representation of location to explicit_location_to_linespec and use it and explicit_location_to_string to save string representations of the canonical location. (create_sals_line_offset, convert_linespec_to_sals): `ls' contains an explicit location. Update all references. (convert_explicit_location_to_sals): New function. (parse_linespec): Use PARSER_EXPLICIT to access the parser result's explicit location. (linespec_state_constructor): Initialize is_linespec. Use PARSER_EXPLICIT. (linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's result. (event_location_to_sals): For linespec locations, set is_linespec. Handle explicit locations. (decode_objc): 'ls' contains an explicit location now. Update all references. (symtabs_from_filename): Use source_file_not_found_error. * location.c (struct event_location.u) <explicit>: New member. (initialize_explicit_location): New function. (initialize_event_location): Initialize explicit locations. (new_explicit_location, get_explicit_location) (get_explicit_location_const): New functions. (explicit_to_string_internal): New function; most of contents moved from canonicalize_linespec. (explicit_location_to_string): New function. (explicit_location_to_linespec): New function. (copy_event_location, delete_event_location) (event_location_to_string_const, event_location_empty_p): Handle explicit locations. * location.h (enum offset_relative_sign, struct line_offset): Move here from linespec.h. (enum event_location_type): Add EXPLICIT_LOCATION. (struct explicit_location): New structure. (explicit_location_to_string): Declare. (explicit_location_to_linespec): Declare. (new_explicit_location, get_explicit_locationp (get_explicit_location_const, initialize_explicit_location): Declare.
2015-08-12 02:09:35 +02:00
void
Mass rename `explicit' -> `explicit_loc'. BuildBot reminded me that "explicit" is a reserved keyword in C++. This patch simply renames all the (illegal) uses of "explicit". This should fix the build errors with --enable-build-with-cxx bots. gdb/ChangeLog * break-catch-throw.c (re_set_exception_catchpoint) Rename reserved C++ keyword "explicit" to "explicit_loc". * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint, update_static_tracepoint): Rename reserved C++ keyword "explicit" to "explicit_loc". * completer.c (collect_explicit_location_matches) (explicit_location_completer): Rename reserved C++ keyword "explicit" to "explicit_loc". * linespec.c (struct linespec) <explicit>: Rename to "explicit_loc". (canonicalize_linespec, create_sals_line_offset) (convert_linespec_to_sals, convert_explicit_location_to_sals) (event_location_to_sals, decode_objc): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.c (struct event_location) <explicit>: Rename to "explicit_loc". (initialize_explicit_location, new_explicit_location) (explicit_location_to_string_internal, explicit_location_to_linespec): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.h (explicit_location_to_string) (explicit_location_to_linespec, initialize_explicit_location) (new_explicit_location): Rename reserved C++ keyword "explicit" to "explicit_loc". * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Rename reserved C++ keyword "explicit" to "explicit_loc".
2015-08-13 18:48:12 +02:00
initialize_explicit_location (struct explicit_location *explicit_loc)
Explicit locations: introduce explicit locations This patch add support for explicit locations and switches many linespec locations to this new location type. This patch also converts all linespec locations entered by the user to an explicit representation internally (thus bypassing the linespec parser when resetting the breakpoint). This patch does not introduce any user-visible changes. gdb/ChangeLog: * break-catch-throw.c (re_set_exception_catchpoint): Convert linespec into explicit location. * breakpoint.c (create_overlay_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Convert linespec into explicit location. (update_static_tracepoint): Convert linespec into explicit location. * linespec.c (enum offset_relative_sign, struct line_offset): Move location.h. (struct linespec) <expression, expr_pc, source_filename> <function_name, label_name, line_offset>: Replace with ... <explicit>: ... this. <is_linespec>: New member. (PARSER_EXPLICIT): New accessor macro. (undefined_label_error): New function. (source_file_not_found_error): New function. (linespec_parse_basic): The parser result is now an explicit location. Use PARSER_EXPLICIT to access it. Use undefined_label_error. (canonicalize_linespec): Convert canonical linespec into explicit location. Move string representation of location to explicit_location_to_linespec and use it and explicit_location_to_string to save string representations of the canonical location. (create_sals_line_offset, convert_linespec_to_sals): `ls' contains an explicit location. Update all references. (convert_explicit_location_to_sals): New function. (parse_linespec): Use PARSER_EXPLICIT to access the parser result's explicit location. (linespec_state_constructor): Initialize is_linespec. Use PARSER_EXPLICIT. (linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's result. (event_location_to_sals): For linespec locations, set is_linespec. Handle explicit locations. (decode_objc): 'ls' contains an explicit location now. Update all references. (symtabs_from_filename): Use source_file_not_found_error. * location.c (struct event_location.u) <explicit>: New member. (initialize_explicit_location): New function. (initialize_event_location): Initialize explicit locations. (new_explicit_location, get_explicit_location) (get_explicit_location_const): New functions. (explicit_to_string_internal): New function; most of contents moved from canonicalize_linespec. (explicit_location_to_string): New function. (explicit_location_to_linespec): New function. (copy_event_location, delete_event_location) (event_location_to_string_const, event_location_empty_p): Handle explicit locations. * location.h (enum offset_relative_sign, struct line_offset): Move here from linespec.h. (enum event_location_type): Add EXPLICIT_LOCATION. (struct explicit_location): New structure. (explicit_location_to_string): Declare. (explicit_location_to_linespec): Declare. (new_explicit_location, get_explicit_locationp (get_explicit_location_const, initialize_explicit_location): Declare.
2015-08-12 02:09:35 +02:00
{
Mass rename `explicit' -> `explicit_loc'. BuildBot reminded me that "explicit" is a reserved keyword in C++. This patch simply renames all the (illegal) uses of "explicit". This should fix the build errors with --enable-build-with-cxx bots. gdb/ChangeLog * break-catch-throw.c (re_set_exception_catchpoint) Rename reserved C++ keyword "explicit" to "explicit_loc". * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint, update_static_tracepoint): Rename reserved C++ keyword "explicit" to "explicit_loc". * completer.c (collect_explicit_location_matches) (explicit_location_completer): Rename reserved C++ keyword "explicit" to "explicit_loc". * linespec.c (struct linespec) <explicit>: Rename to "explicit_loc". (canonicalize_linespec, create_sals_line_offset) (convert_linespec_to_sals, convert_explicit_location_to_sals) (event_location_to_sals, decode_objc): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.c (struct event_location) <explicit>: Rename to "explicit_loc". (initialize_explicit_location, new_explicit_location) (explicit_location_to_string_internal, explicit_location_to_linespec): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.h (explicit_location_to_string) (explicit_location_to_linespec, initialize_explicit_location) (new_explicit_location): Rename reserved C++ keyword "explicit" to "explicit_loc". * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Rename reserved C++ keyword "explicit" to "explicit_loc".
2015-08-13 18:48:12 +02:00
memset (explicit_loc, 0, sizeof (struct explicit_location));
explicit_loc->line_offset.sign = LINE_OFFSET_UNKNOWN;
Explicit locations: introduce explicit locations This patch add support for explicit locations and switches many linespec locations to this new location type. This patch also converts all linespec locations entered by the user to an explicit representation internally (thus bypassing the linespec parser when resetting the breakpoint). This patch does not introduce any user-visible changes. gdb/ChangeLog: * break-catch-throw.c (re_set_exception_catchpoint): Convert linespec into explicit location. * breakpoint.c (create_overlay_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Convert linespec into explicit location. (update_static_tracepoint): Convert linespec into explicit location. * linespec.c (enum offset_relative_sign, struct line_offset): Move location.h. (struct linespec) <expression, expr_pc, source_filename> <function_name, label_name, line_offset>: Replace with ... <explicit>: ... this. <is_linespec>: New member. (PARSER_EXPLICIT): New accessor macro. (undefined_label_error): New function. (source_file_not_found_error): New function. (linespec_parse_basic): The parser result is now an explicit location. Use PARSER_EXPLICIT to access it. Use undefined_label_error. (canonicalize_linespec): Convert canonical linespec into explicit location. Move string representation of location to explicit_location_to_linespec and use it and explicit_location_to_string to save string representations of the canonical location. (create_sals_line_offset, convert_linespec_to_sals): `ls' contains an explicit location. Update all references. (convert_explicit_location_to_sals): New function. (parse_linespec): Use PARSER_EXPLICIT to access the parser result's explicit location. (linespec_state_constructor): Initialize is_linespec. Use PARSER_EXPLICIT. (linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's result. (event_location_to_sals): For linespec locations, set is_linespec. Handle explicit locations. (decode_objc): 'ls' contains an explicit location now. Update all references. (symtabs_from_filename): Use source_file_not_found_error. * location.c (struct event_location.u) <explicit>: New member. (initialize_explicit_location): New function. (initialize_event_location): Initialize explicit locations. (new_explicit_location, get_explicit_location) (get_explicit_location_const): New functions. (explicit_to_string_internal): New function; most of contents moved from canonicalize_linespec. (explicit_location_to_string): New function. (explicit_location_to_linespec): New function. (copy_event_location, delete_event_location) (event_location_to_string_const, event_location_empty_p): Handle explicit locations. * location.h (enum offset_relative_sign, struct line_offset): Move here from linespec.h. (enum event_location_type): Add EXPLICIT_LOCATION. (struct explicit_location): New structure. (explicit_location_to_string): Declare. (explicit_location_to_linespec): Declare. (new_explicit_location, get_explicit_locationp (get_explicit_location_const, initialize_explicit_location): Declare.
2015-08-12 02:09:35 +02:00
}
/* See description in location.h. */
Introduce event_location_up This removes make_cleanup_delete_event_location and instead changes the various location functions to return an event_location_up, a new unique_ptr typedef. This is largely straightforward, but be sure to examine the init_breakpoint_sal change. I believe the code I deleted there is dead, because "location != NULL" can never be true in that branch; but you should double-check. gdb/ChangeLog 2017-04-12 Tom Tromey <tom@tromey.com> * tracepoint.c (scope_info): Update. * spu-tdep.c (spu_catch_start): Update. * python/python.c (gdbpy_decode_line): Update. * python/py-finishbreakpoint.c (bpfinishpy_init): Update. * python/py-breakpoint.c (bppy_init): Update. * probe.c (parse_probes): Update. * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Update. * location.h (event_location_deleter): New struct. (event_location_up): New typedef. (new_linespec_location, new_address_location, new_probe_location) (new_explicit_location, copy_event_location) (string_to_event_location, string_to_event_location_basic) (string_to_explicit_location): Update return type. (make_cleanup_delete_event_location): Remove. * location.c (new_linespec_location, new_address_location) (new_probe_location, new_explicit_location, copy_event_location): Return event_location_up. (delete_event_location_cleanup) (make_cleanup_delete_event_location): Remove. (string_to_explicit_location, string_to_event_location_basic) (string_to_event_location): Return event_location_up. * linespec.c (canonicalize_linespec, event_location_to_sals) (decode_line_with_current_source) (decode_line_with_last_displayed, decode_objc): Update. * guile/scm-breakpoint.c (gdbscm_register_breakpoint_x): Update. * completer.c (location_completer): Update. * cli/cli-cmds.c (edit_command, list_command): Update. * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint) (create_thread_event_breakpoint): Update. (init_breakpoint_sal): Update. Remove some dead code. (create_breakpoint_sal): Change type of "location". Update. (create_breakpoints_sal, create_breakpoint, break_command_1) (dprintf_command, break_range_command, until_break_command) (init_ada_exception_breakpoint) (strace_marker_create_sals_from_location) (update_static_tracepoint, trace_command, ftrace_command) (strace_command, create_tracepoint_from_upload): Update. * break-catch-throw.c (re_set_exception_catchpoint): Update. * ax-gdb.c (agent_command_1): Update.
2017-04-06 04:44:01 +02:00
event_location_up
Constify some linespec functions This changes a few linespec functions to work on "const char *" and then fixes up all the callers. This allows further constification elsewhere. gdb/ChangeLog 2017-09-27 Tom Tromey <tom@tromey.com> * tracepoint.c (info_scope_command): Constify. * python/python.c (gdbpy_decode_line): Constify. * python/py-breakpoint.c (bppy_init): Constify. * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Constify. * location.h: (new_linespec_location) (string_to_event_location_basic, string_to_event_location): Constify. * location.c (new_linespec_location) (string_to_event_location_basic, string_to_event_location): Constify. * linespec.h (decode_line_with_current_source) (decode_line_with_last_displayed, linespec_lex_to_end): Constify. * linespec.c (linespec_lex_to_end) (decode_line_with_current_source) (decode_line_with_last_displayed): Constify. * guile/scm-breakpoint.c (gdbscm_register_breakpoint_x): Constify. * cli/cli-cmds.c (edit_command, list_command): Constify. * breakpoint.h (until_break_command, watch_command_wrapper) (awatch_command_wrapper, rwatch_command_wrapper) (init_ada_exception_breakpoint): Constify. * breakpoint.c (break_command_1, dprintf_command) (break_range_command, watch_command_wrapper) (rwatch_command_wrapper, awatch_command_wrapper) (until_break_command, init_ada_exception_breakpoint) (strace_marker_create_sals_from_location, trace_command) (ftrace_command, strace_command, struct tracepoint): Constify. * ax-gdb.c (agent_command_1): Constify. * ada-lang.c (ada_exception_sal): Constify.
2017-09-13 02:32:41 +02:00
new_linespec_location (const char **linespec)
{
struct event_location *location;
location = XCNEW (struct event_location);
EL_TYPE (location) = LINESPEC_LOCATION;
if (*linespec != NULL)
{
Constify some linespec functions This changes a few linespec functions to work on "const char *" and then fixes up all the callers. This allows further constification elsewhere. gdb/ChangeLog 2017-09-27 Tom Tromey <tom@tromey.com> * tracepoint.c (info_scope_command): Constify. * python/python.c (gdbpy_decode_line): Constify. * python/py-breakpoint.c (bppy_init): Constify. * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Constify. * location.h: (new_linespec_location) (string_to_event_location_basic, string_to_event_location): Constify. * location.c (new_linespec_location) (string_to_event_location_basic, string_to_event_location): Constify. * linespec.h (decode_line_with_current_source) (decode_line_with_last_displayed, linespec_lex_to_end): Constify. * linespec.c (linespec_lex_to_end) (decode_line_with_current_source) (decode_line_with_last_displayed): Constify. * guile/scm-breakpoint.c (gdbscm_register_breakpoint_x): Constify. * cli/cli-cmds.c (edit_command, list_command): Constify. * breakpoint.h (until_break_command, watch_command_wrapper) (awatch_command_wrapper, rwatch_command_wrapper) (init_ada_exception_breakpoint): Constify. * breakpoint.c (break_command_1, dprintf_command) (break_range_command, watch_command_wrapper) (rwatch_command_wrapper, awatch_command_wrapper) (until_break_command, init_ada_exception_breakpoint) (strace_marker_create_sals_from_location, trace_command) (ftrace_command, strace_command, struct tracepoint): Constify. * ax-gdb.c (agent_command_1): Constify. * ada-lang.c (ada_exception_sal): Constify.
2017-09-13 02:32:41 +02:00
const char *p;
const char *orig = *linespec;
linespec_lex_to_end (linespec);
p = remove_trailing_whitespace (orig, *linespec);
if ((p - orig) > 0)
EL_LINESPEC (location) = savestring (orig, p - orig);
}
Introduce event_location_up This removes make_cleanup_delete_event_location and instead changes the various location functions to return an event_location_up, a new unique_ptr typedef. This is largely straightforward, but be sure to examine the init_breakpoint_sal change. I believe the code I deleted there is dead, because "location != NULL" can never be true in that branch; but you should double-check. gdb/ChangeLog 2017-04-12 Tom Tromey <tom@tromey.com> * tracepoint.c (scope_info): Update. * spu-tdep.c (spu_catch_start): Update. * python/python.c (gdbpy_decode_line): Update. * python/py-finishbreakpoint.c (bpfinishpy_init): Update. * python/py-breakpoint.c (bppy_init): Update. * probe.c (parse_probes): Update. * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Update. * location.h (event_location_deleter): New struct. (event_location_up): New typedef. (new_linespec_location, new_address_location, new_probe_location) (new_explicit_location, copy_event_location) (string_to_event_location, string_to_event_location_basic) (string_to_explicit_location): Update return type. (make_cleanup_delete_event_location): Remove. * location.c (new_linespec_location, new_address_location) (new_probe_location, new_explicit_location, copy_event_location): Return event_location_up. (delete_event_location_cleanup) (make_cleanup_delete_event_location): Remove. (string_to_explicit_location, string_to_event_location_basic) (string_to_event_location): Return event_location_up. * linespec.c (canonicalize_linespec, event_location_to_sals) (decode_line_with_current_source) (decode_line_with_last_displayed, decode_objc): Update. * guile/scm-breakpoint.c (gdbscm_register_breakpoint_x): Update. * completer.c (location_completer): Update. * cli/cli-cmds.c (edit_command, list_command): Update. * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint) (create_thread_event_breakpoint): Update. (init_breakpoint_sal): Update. Remove some dead code. (create_breakpoint_sal): Change type of "location". Update. (create_breakpoints_sal, create_breakpoint, break_command_1) (dprintf_command, break_range_command, until_break_command) (init_ada_exception_breakpoint) (strace_marker_create_sals_from_location) (update_static_tracepoint, trace_command, ftrace_command) (strace_command, create_tracepoint_from_upload): Update. * break-catch-throw.c (re_set_exception_catchpoint): Update. * ax-gdb.c (agent_command_1): Update.
2017-04-06 04:44:01 +02:00
return event_location_up (location);
}
/* See description in location.h. */
const char *
get_linespec_location (const struct event_location *location)
{
gdb_assert (EL_TYPE (location) == LINESPEC_LOCATION);
return EL_LINESPEC (location);
}
/* See description in location.h. */
Introduce event_location_up This removes make_cleanup_delete_event_location and instead changes the various location functions to return an event_location_up, a new unique_ptr typedef. This is largely straightforward, but be sure to examine the init_breakpoint_sal change. I believe the code I deleted there is dead, because "location != NULL" can never be true in that branch; but you should double-check. gdb/ChangeLog 2017-04-12 Tom Tromey <tom@tromey.com> * tracepoint.c (scope_info): Update. * spu-tdep.c (spu_catch_start): Update. * python/python.c (gdbpy_decode_line): Update. * python/py-finishbreakpoint.c (bpfinishpy_init): Update. * python/py-breakpoint.c (bppy_init): Update. * probe.c (parse_probes): Update. * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Update. * location.h (event_location_deleter): New struct. (event_location_up): New typedef. (new_linespec_location, new_address_location, new_probe_location) (new_explicit_location, copy_event_location) (string_to_event_location, string_to_event_location_basic) (string_to_explicit_location): Update return type. (make_cleanup_delete_event_location): Remove. * location.c (new_linespec_location, new_address_location) (new_probe_location, new_explicit_location, copy_event_location): Return event_location_up. (delete_event_location_cleanup) (make_cleanup_delete_event_location): Remove. (string_to_explicit_location, string_to_event_location_basic) (string_to_event_location): Return event_location_up. * linespec.c (canonicalize_linespec, event_location_to_sals) (decode_line_with_current_source) (decode_line_with_last_displayed, decode_objc): Update. * guile/scm-breakpoint.c (gdbscm_register_breakpoint_x): Update. * completer.c (location_completer): Update. * cli/cli-cmds.c (edit_command, list_command): Update. * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint) (create_thread_event_breakpoint): Update. (init_breakpoint_sal): Update. Remove some dead code. (create_breakpoint_sal): Change type of "location". Update. (create_breakpoints_sal, create_breakpoint, break_command_1) (dprintf_command, break_range_command, until_break_command) (init_ada_exception_breakpoint) (strace_marker_create_sals_from_location) (update_static_tracepoint, trace_command, ftrace_command) (strace_command, create_tracepoint_from_upload): Update. * break-catch-throw.c (re_set_exception_catchpoint): Update. * ax-gdb.c (agent_command_1): Update.
2017-04-06 04:44:01 +02:00
event_location_up
Fix regression introduced in "break *<EXPR>" by explicit location patches. A relatively recent patch support for explicit locations, and part of that patch cleaned up the way we parse breakpoint locations. Unfortunatly, a small regression crept in for "*<EXPR>" breakpoint locations. In particular, on PIE programs, one can see the issue by doing the following, with any program: (gdb) b *main Breakpoint 1 at 0x51a: file hello.c, line 3. (gdb) run Starting program: /[...]/hello Error in re-setting breakpoint 1: Warning: Cannot insert breakpoint 1. Cannot access memory at address 0x51a Warning: Cannot insert breakpoint 1. Cannot access memory at address 0x51a Just for the record, this regression was introduced by: commit a06efdd6effd149a1d392df8d62824e44872003a Date: Tue Aug 11 17:09:35 2015 -0700 Subject: Explicit locations: introduce address locations What happens is that the patch makes the implicit assumption that the address computed the first time is static, as if it was designed to only support litteral expressions (Eg. "*0x1234"). This allows the shortcut of not re-computing the breakpoint location's address when re-setting breakpoints. However, this does not work in general, as demonstrated in the example above. This patch plugs that hole simply by saving the original expression used to compute the address as part of the address location, so as to then re-evaluate that expression during breakpoint re-set. gdb/ChangeLog: * location.h (new_address_location): Add new parameters "addr_string" and "addr_string_len". (get_address_string_location): Add declaration. * location.c (new_address_location): Add new parameters "addr_string" and "addr_string_len". If not NULL, store a copy of the addr_string in the new location as well. (get_address_string_location): New function. (string_to_event_location): Update call to new_address_location. * linespec.c (event_location_to_sals) <ADDRESS_LOCATION>: Save the event location in the parser's state before passing it to convert_address_location_to_sals. * breakpoint.c (create_thread_event_breakpoint): Update call to new_address_location. (init_breakpoint_sal): Get the event location's string, if any, and use it to update call to new_address_location. * python/py-finishbreakpoint.c (bpfinishpy_init): Update call to new_address_location. * spu-tdep.c (spu_catch_start): Likewise. * config/djgpp/fnchange.lst: Add entries for gdb/testsuite/gdb.base/break-fun-addr1.c and gdb/testsuite/gdb.base/break-fun-addr2.c. gdb/testsuite/ChangeLog: * gdb.base/break-fun-addr.exp: New file. * gdb.base/break-fun-addr1.c: New file. * gdb.base/break-fun-addr2.c: New file.
2015-12-08 19:04:56 +01:00
new_address_location (CORE_ADDR addr, const char *addr_string,
int addr_string_len)
{
struct event_location *location;
location = XCNEW (struct event_location);
EL_TYPE (location) = ADDRESS_LOCATION;
EL_ADDRESS (location) = addr;
Fix regression introduced in "break *<EXPR>" by explicit location patches. A relatively recent patch support for explicit locations, and part of that patch cleaned up the way we parse breakpoint locations. Unfortunatly, a small regression crept in for "*<EXPR>" breakpoint locations. In particular, on PIE programs, one can see the issue by doing the following, with any program: (gdb) b *main Breakpoint 1 at 0x51a: file hello.c, line 3. (gdb) run Starting program: /[...]/hello Error in re-setting breakpoint 1: Warning: Cannot insert breakpoint 1. Cannot access memory at address 0x51a Warning: Cannot insert breakpoint 1. Cannot access memory at address 0x51a Just for the record, this regression was introduced by: commit a06efdd6effd149a1d392df8d62824e44872003a Date: Tue Aug 11 17:09:35 2015 -0700 Subject: Explicit locations: introduce address locations What happens is that the patch makes the implicit assumption that the address computed the first time is static, as if it was designed to only support litteral expressions (Eg. "*0x1234"). This allows the shortcut of not re-computing the breakpoint location's address when re-setting breakpoints. However, this does not work in general, as demonstrated in the example above. This patch plugs that hole simply by saving the original expression used to compute the address as part of the address location, so as to then re-evaluate that expression during breakpoint re-set. gdb/ChangeLog: * location.h (new_address_location): Add new parameters "addr_string" and "addr_string_len". (get_address_string_location): Add declaration. * location.c (new_address_location): Add new parameters "addr_string" and "addr_string_len". If not NULL, store a copy of the addr_string in the new location as well. (get_address_string_location): New function. (string_to_event_location): Update call to new_address_location. * linespec.c (event_location_to_sals) <ADDRESS_LOCATION>: Save the event location in the parser's state before passing it to convert_address_location_to_sals. * breakpoint.c (create_thread_event_breakpoint): Update call to new_address_location. (init_breakpoint_sal): Get the event location's string, if any, and use it to update call to new_address_location. * python/py-finishbreakpoint.c (bpfinishpy_init): Update call to new_address_location. * spu-tdep.c (spu_catch_start): Likewise. * config/djgpp/fnchange.lst: Add entries for gdb/testsuite/gdb.base/break-fun-addr1.c and gdb/testsuite/gdb.base/break-fun-addr2.c. gdb/testsuite/ChangeLog: * gdb.base/break-fun-addr.exp: New file. * gdb.base/break-fun-addr1.c: New file. * gdb.base/break-fun-addr2.c: New file.
2015-12-08 19:04:56 +01:00
if (addr_string != NULL)
EL_STRING (location) = xstrndup (addr_string, addr_string_len);
Introduce event_location_up This removes make_cleanup_delete_event_location and instead changes the various location functions to return an event_location_up, a new unique_ptr typedef. This is largely straightforward, but be sure to examine the init_breakpoint_sal change. I believe the code I deleted there is dead, because "location != NULL" can never be true in that branch; but you should double-check. gdb/ChangeLog 2017-04-12 Tom Tromey <tom@tromey.com> * tracepoint.c (scope_info): Update. * spu-tdep.c (spu_catch_start): Update. * python/python.c (gdbpy_decode_line): Update. * python/py-finishbreakpoint.c (bpfinishpy_init): Update. * python/py-breakpoint.c (bppy_init): Update. * probe.c (parse_probes): Update. * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Update. * location.h (event_location_deleter): New struct. (event_location_up): New typedef. (new_linespec_location, new_address_location, new_probe_location) (new_explicit_location, copy_event_location) (string_to_event_location, string_to_event_location_basic) (string_to_explicit_location): Update return type. (make_cleanup_delete_event_location): Remove. * location.c (new_linespec_location, new_address_location) (new_probe_location, new_explicit_location, copy_event_location): Return event_location_up. (delete_event_location_cleanup) (make_cleanup_delete_event_location): Remove. (string_to_explicit_location, string_to_event_location_basic) (string_to_event_location): Return event_location_up. * linespec.c (canonicalize_linespec, event_location_to_sals) (decode_line_with_current_source) (decode_line_with_last_displayed, decode_objc): Update. * guile/scm-breakpoint.c (gdbscm_register_breakpoint_x): Update. * completer.c (location_completer): Update. * cli/cli-cmds.c (edit_command, list_command): Update. * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint) (create_thread_event_breakpoint): Update. (init_breakpoint_sal): Update. Remove some dead code. (create_breakpoint_sal): Change type of "location". Update. (create_breakpoints_sal, create_breakpoint, break_command_1) (dprintf_command, break_range_command, until_break_command) (init_ada_exception_breakpoint) (strace_marker_create_sals_from_location) (update_static_tracepoint, trace_command, ftrace_command) (strace_command, create_tracepoint_from_upload): Update. * break-catch-throw.c (re_set_exception_catchpoint): Update. * ax-gdb.c (agent_command_1): Update.
2017-04-06 04:44:01 +02:00
return event_location_up (location);
}
/* See description in location.h. */
CORE_ADDR
get_address_location (const struct event_location *location)
{
gdb_assert (EL_TYPE (location) == ADDRESS_LOCATION);
return EL_ADDRESS (location);
}
/* See description in location.h. */
Fix regression introduced in "break *<EXPR>" by explicit location patches. A relatively recent patch support for explicit locations, and part of that patch cleaned up the way we parse breakpoint locations. Unfortunatly, a small regression crept in for "*<EXPR>" breakpoint locations. In particular, on PIE programs, one can see the issue by doing the following, with any program: (gdb) b *main Breakpoint 1 at 0x51a: file hello.c, line 3. (gdb) run Starting program: /[...]/hello Error in re-setting breakpoint 1: Warning: Cannot insert breakpoint 1. Cannot access memory at address 0x51a Warning: Cannot insert breakpoint 1. Cannot access memory at address 0x51a Just for the record, this regression was introduced by: commit a06efdd6effd149a1d392df8d62824e44872003a Date: Tue Aug 11 17:09:35 2015 -0700 Subject: Explicit locations: introduce address locations What happens is that the patch makes the implicit assumption that the address computed the first time is static, as if it was designed to only support litteral expressions (Eg. "*0x1234"). This allows the shortcut of not re-computing the breakpoint location's address when re-setting breakpoints. However, this does not work in general, as demonstrated in the example above. This patch plugs that hole simply by saving the original expression used to compute the address as part of the address location, so as to then re-evaluate that expression during breakpoint re-set. gdb/ChangeLog: * location.h (new_address_location): Add new parameters "addr_string" and "addr_string_len". (get_address_string_location): Add declaration. * location.c (new_address_location): Add new parameters "addr_string" and "addr_string_len". If not NULL, store a copy of the addr_string in the new location as well. (get_address_string_location): New function. (string_to_event_location): Update call to new_address_location. * linespec.c (event_location_to_sals) <ADDRESS_LOCATION>: Save the event location in the parser's state before passing it to convert_address_location_to_sals. * breakpoint.c (create_thread_event_breakpoint): Update call to new_address_location. (init_breakpoint_sal): Get the event location's string, if any, and use it to update call to new_address_location. * python/py-finishbreakpoint.c (bpfinishpy_init): Update call to new_address_location. * spu-tdep.c (spu_catch_start): Likewise. * config/djgpp/fnchange.lst: Add entries for gdb/testsuite/gdb.base/break-fun-addr1.c and gdb/testsuite/gdb.base/break-fun-addr2.c. gdb/testsuite/ChangeLog: * gdb.base/break-fun-addr.exp: New file. * gdb.base/break-fun-addr1.c: New file. * gdb.base/break-fun-addr2.c: New file.
2015-12-08 19:04:56 +01:00
const char *
get_address_string_location (const struct event_location *location)
{
gdb_assert (EL_TYPE (location) == ADDRESS_LOCATION);
return EL_STRING (location);
}
/* See description in location.h. */
Introduce event_location_up This removes make_cleanup_delete_event_location and instead changes the various location functions to return an event_location_up, a new unique_ptr typedef. This is largely straightforward, but be sure to examine the init_breakpoint_sal change. I believe the code I deleted there is dead, because "location != NULL" can never be true in that branch; but you should double-check. gdb/ChangeLog 2017-04-12 Tom Tromey <tom@tromey.com> * tracepoint.c (scope_info): Update. * spu-tdep.c (spu_catch_start): Update. * python/python.c (gdbpy_decode_line): Update. * python/py-finishbreakpoint.c (bpfinishpy_init): Update. * python/py-breakpoint.c (bppy_init): Update. * probe.c (parse_probes): Update. * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Update. * location.h (event_location_deleter): New struct. (event_location_up): New typedef. (new_linespec_location, new_address_location, new_probe_location) (new_explicit_location, copy_event_location) (string_to_event_location, string_to_event_location_basic) (string_to_explicit_location): Update return type. (make_cleanup_delete_event_location): Remove. * location.c (new_linespec_location, new_address_location) (new_probe_location, new_explicit_location, copy_event_location): Return event_location_up. (delete_event_location_cleanup) (make_cleanup_delete_event_location): Remove. (string_to_explicit_location, string_to_event_location_basic) (string_to_event_location): Return event_location_up. * linespec.c (canonicalize_linespec, event_location_to_sals) (decode_line_with_current_source) (decode_line_with_last_displayed, decode_objc): Update. * guile/scm-breakpoint.c (gdbscm_register_breakpoint_x): Update. * completer.c (location_completer): Update. * cli/cli-cmds.c (edit_command, list_command): Update. * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint) (create_thread_event_breakpoint): Update. (init_breakpoint_sal): Update. Remove some dead code. (create_breakpoint_sal): Change type of "location". Update. (create_breakpoints_sal, create_breakpoint, break_command_1) (dprintf_command, break_range_command, until_break_command) (init_ada_exception_breakpoint) (strace_marker_create_sals_from_location) (update_static_tracepoint, trace_command, ftrace_command) (strace_command, create_tracepoint_from_upload): Update. * break-catch-throw.c (re_set_exception_catchpoint): Update. * ax-gdb.c (agent_command_1): Update.
2017-04-06 04:44:01 +02:00
event_location_up
new_probe_location (const char *probe)
{
struct event_location *location;
location = XCNEW (struct event_location);
EL_TYPE (location) = PROBE_LOCATION;
if (probe != NULL)
EL_PROBE (location) = xstrdup (probe);
Introduce event_location_up This removes make_cleanup_delete_event_location and instead changes the various location functions to return an event_location_up, a new unique_ptr typedef. This is largely straightforward, but be sure to examine the init_breakpoint_sal change. I believe the code I deleted there is dead, because "location != NULL" can never be true in that branch; but you should double-check. gdb/ChangeLog 2017-04-12 Tom Tromey <tom@tromey.com> * tracepoint.c (scope_info): Update. * spu-tdep.c (spu_catch_start): Update. * python/python.c (gdbpy_decode_line): Update. * python/py-finishbreakpoint.c (bpfinishpy_init): Update. * python/py-breakpoint.c (bppy_init): Update. * probe.c (parse_probes): Update. * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Update. * location.h (event_location_deleter): New struct. (event_location_up): New typedef. (new_linespec_location, new_address_location, new_probe_location) (new_explicit_location, copy_event_location) (string_to_event_location, string_to_event_location_basic) (string_to_explicit_location): Update return type. (make_cleanup_delete_event_location): Remove. * location.c (new_linespec_location, new_address_location) (new_probe_location, new_explicit_location, copy_event_location): Return event_location_up. (delete_event_location_cleanup) (make_cleanup_delete_event_location): Remove. (string_to_explicit_location, string_to_event_location_basic) (string_to_event_location): Return event_location_up. * linespec.c (canonicalize_linespec, event_location_to_sals) (decode_line_with_current_source) (decode_line_with_last_displayed, decode_objc): Update. * guile/scm-breakpoint.c (gdbscm_register_breakpoint_x): Update. * completer.c (location_completer): Update. * cli/cli-cmds.c (edit_command, list_command): Update. * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint) (create_thread_event_breakpoint): Update. (init_breakpoint_sal): Update. Remove some dead code. (create_breakpoint_sal): Change type of "location". Update. (create_breakpoints_sal, create_breakpoint, break_command_1) (dprintf_command, break_range_command, until_break_command) (init_ada_exception_breakpoint) (strace_marker_create_sals_from_location) (update_static_tracepoint, trace_command, ftrace_command) (strace_command, create_tracepoint_from_upload): Update. * break-catch-throw.c (re_set_exception_catchpoint): Update. * ax-gdb.c (agent_command_1): Update.
2017-04-06 04:44:01 +02:00
return event_location_up (location);
}
/* See description in location.h. */
const char *
get_probe_location (const struct event_location *location)
{
gdb_assert (EL_TYPE (location) == PROBE_LOCATION);
return EL_PROBE (location);
}
/* See description in location.h. */
Introduce event_location_up This removes make_cleanup_delete_event_location and instead changes the various location functions to return an event_location_up, a new unique_ptr typedef. This is largely straightforward, but be sure to examine the init_breakpoint_sal change. I believe the code I deleted there is dead, because "location != NULL" can never be true in that branch; but you should double-check. gdb/ChangeLog 2017-04-12 Tom Tromey <tom@tromey.com> * tracepoint.c (scope_info): Update. * spu-tdep.c (spu_catch_start): Update. * python/python.c (gdbpy_decode_line): Update. * python/py-finishbreakpoint.c (bpfinishpy_init): Update. * python/py-breakpoint.c (bppy_init): Update. * probe.c (parse_probes): Update. * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Update. * location.h (event_location_deleter): New struct. (event_location_up): New typedef. (new_linespec_location, new_address_location, new_probe_location) (new_explicit_location, copy_event_location) (string_to_event_location, string_to_event_location_basic) (string_to_explicit_location): Update return type. (make_cleanup_delete_event_location): Remove. * location.c (new_linespec_location, new_address_location) (new_probe_location, new_explicit_location, copy_event_location): Return event_location_up. (delete_event_location_cleanup) (make_cleanup_delete_event_location): Remove. (string_to_explicit_location, string_to_event_location_basic) (string_to_event_location): Return event_location_up. * linespec.c (canonicalize_linespec, event_location_to_sals) (decode_line_with_current_source) (decode_line_with_last_displayed, decode_objc): Update. * guile/scm-breakpoint.c (gdbscm_register_breakpoint_x): Update. * completer.c (location_completer): Update. * cli/cli-cmds.c (edit_command, list_command): Update. * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint) (create_thread_event_breakpoint): Update. (init_breakpoint_sal): Update. Remove some dead code. (create_breakpoint_sal): Change type of "location". Update. (create_breakpoints_sal, create_breakpoint, break_command_1) (dprintf_command, break_range_command, until_break_command) (init_ada_exception_breakpoint) (strace_marker_create_sals_from_location) (update_static_tracepoint, trace_command, ftrace_command) (strace_command, create_tracepoint_from_upload): Update. * break-catch-throw.c (re_set_exception_catchpoint): Update. * ax-gdb.c (agent_command_1): Update.
2017-04-06 04:44:01 +02:00
event_location_up
Mass rename `explicit' -> `explicit_loc'. BuildBot reminded me that "explicit" is a reserved keyword in C++. This patch simply renames all the (illegal) uses of "explicit". This should fix the build errors with --enable-build-with-cxx bots. gdb/ChangeLog * break-catch-throw.c (re_set_exception_catchpoint) Rename reserved C++ keyword "explicit" to "explicit_loc". * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint, update_static_tracepoint): Rename reserved C++ keyword "explicit" to "explicit_loc". * completer.c (collect_explicit_location_matches) (explicit_location_completer): Rename reserved C++ keyword "explicit" to "explicit_loc". * linespec.c (struct linespec) <explicit>: Rename to "explicit_loc". (canonicalize_linespec, create_sals_line_offset) (convert_linespec_to_sals, convert_explicit_location_to_sals) (event_location_to_sals, decode_objc): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.c (struct event_location) <explicit>: Rename to "explicit_loc". (initialize_explicit_location, new_explicit_location) (explicit_location_to_string_internal, explicit_location_to_linespec): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.h (explicit_location_to_string) (explicit_location_to_linespec, initialize_explicit_location) (new_explicit_location): Rename reserved C++ keyword "explicit" to "explicit_loc". * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Rename reserved C++ keyword "explicit" to "explicit_loc".
2015-08-13 18:48:12 +02:00
new_explicit_location (const struct explicit_location *explicit_loc)
Explicit locations: introduce explicit locations This patch add support for explicit locations and switches many linespec locations to this new location type. This patch also converts all linespec locations entered by the user to an explicit representation internally (thus bypassing the linespec parser when resetting the breakpoint). This patch does not introduce any user-visible changes. gdb/ChangeLog: * break-catch-throw.c (re_set_exception_catchpoint): Convert linespec into explicit location. * breakpoint.c (create_overlay_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Convert linespec into explicit location. (update_static_tracepoint): Convert linespec into explicit location. * linespec.c (enum offset_relative_sign, struct line_offset): Move location.h. (struct linespec) <expression, expr_pc, source_filename> <function_name, label_name, line_offset>: Replace with ... <explicit>: ... this. <is_linespec>: New member. (PARSER_EXPLICIT): New accessor macro. (undefined_label_error): New function. (source_file_not_found_error): New function. (linespec_parse_basic): The parser result is now an explicit location. Use PARSER_EXPLICIT to access it. Use undefined_label_error. (canonicalize_linespec): Convert canonical linespec into explicit location. Move string representation of location to explicit_location_to_linespec and use it and explicit_location_to_string to save string representations of the canonical location. (create_sals_line_offset, convert_linespec_to_sals): `ls' contains an explicit location. Update all references. (convert_explicit_location_to_sals): New function. (parse_linespec): Use PARSER_EXPLICIT to access the parser result's explicit location. (linespec_state_constructor): Initialize is_linespec. Use PARSER_EXPLICIT. (linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's result. (event_location_to_sals): For linespec locations, set is_linespec. Handle explicit locations. (decode_objc): 'ls' contains an explicit location now. Update all references. (symtabs_from_filename): Use source_file_not_found_error. * location.c (struct event_location.u) <explicit>: New member. (initialize_explicit_location): New function. (initialize_event_location): Initialize explicit locations. (new_explicit_location, get_explicit_location) (get_explicit_location_const): New functions. (explicit_to_string_internal): New function; most of contents moved from canonicalize_linespec. (explicit_location_to_string): New function. (explicit_location_to_linespec): New function. (copy_event_location, delete_event_location) (event_location_to_string_const, event_location_empty_p): Handle explicit locations. * location.h (enum offset_relative_sign, struct line_offset): Move here from linespec.h. (enum event_location_type): Add EXPLICIT_LOCATION. (struct explicit_location): New structure. (explicit_location_to_string): Declare. (explicit_location_to_linespec): Declare. (new_explicit_location, get_explicit_locationp (get_explicit_location_const, initialize_explicit_location): Declare.
2015-08-12 02:09:35 +02:00
{
struct event_location tmp;
memset (&tmp, 0, sizeof (struct event_location));
EL_TYPE (&tmp) = EXPLICIT_LOCATION;
initialize_explicit_location (EL_EXPLICIT (&tmp));
Mass rename `explicit' -> `explicit_loc'. BuildBot reminded me that "explicit" is a reserved keyword in C++. This patch simply renames all the (illegal) uses of "explicit". This should fix the build errors with --enable-build-with-cxx bots. gdb/ChangeLog * break-catch-throw.c (re_set_exception_catchpoint) Rename reserved C++ keyword "explicit" to "explicit_loc". * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint, update_static_tracepoint): Rename reserved C++ keyword "explicit" to "explicit_loc". * completer.c (collect_explicit_location_matches) (explicit_location_completer): Rename reserved C++ keyword "explicit" to "explicit_loc". * linespec.c (struct linespec) <explicit>: Rename to "explicit_loc". (canonicalize_linespec, create_sals_line_offset) (convert_linespec_to_sals, convert_explicit_location_to_sals) (event_location_to_sals, decode_objc): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.c (struct event_location) <explicit>: Rename to "explicit_loc". (initialize_explicit_location, new_explicit_location) (explicit_location_to_string_internal, explicit_location_to_linespec): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.h (explicit_location_to_string) (explicit_location_to_linespec, initialize_explicit_location) (new_explicit_location): Rename reserved C++ keyword "explicit" to "explicit_loc". * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Rename reserved C++ keyword "explicit" to "explicit_loc".
2015-08-13 18:48:12 +02:00
if (explicit_loc != NULL)
Explicit locations: introduce explicit locations This patch add support for explicit locations and switches many linespec locations to this new location type. This patch also converts all linespec locations entered by the user to an explicit representation internally (thus bypassing the linespec parser when resetting the breakpoint). This patch does not introduce any user-visible changes. gdb/ChangeLog: * break-catch-throw.c (re_set_exception_catchpoint): Convert linespec into explicit location. * breakpoint.c (create_overlay_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Convert linespec into explicit location. (update_static_tracepoint): Convert linespec into explicit location. * linespec.c (enum offset_relative_sign, struct line_offset): Move location.h. (struct linespec) <expression, expr_pc, source_filename> <function_name, label_name, line_offset>: Replace with ... <explicit>: ... this. <is_linespec>: New member. (PARSER_EXPLICIT): New accessor macro. (undefined_label_error): New function. (source_file_not_found_error): New function. (linespec_parse_basic): The parser result is now an explicit location. Use PARSER_EXPLICIT to access it. Use undefined_label_error. (canonicalize_linespec): Convert canonical linespec into explicit location. Move string representation of location to explicit_location_to_linespec and use it and explicit_location_to_string to save string representations of the canonical location. (create_sals_line_offset, convert_linespec_to_sals): `ls' contains an explicit location. Update all references. (convert_explicit_location_to_sals): New function. (parse_linespec): Use PARSER_EXPLICIT to access the parser result's explicit location. (linespec_state_constructor): Initialize is_linespec. Use PARSER_EXPLICIT. (linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's result. (event_location_to_sals): For linespec locations, set is_linespec. Handle explicit locations. (decode_objc): 'ls' contains an explicit location now. Update all references. (symtabs_from_filename): Use source_file_not_found_error. * location.c (struct event_location.u) <explicit>: New member. (initialize_explicit_location): New function. (initialize_event_location): Initialize explicit locations. (new_explicit_location, get_explicit_location) (get_explicit_location_const): New functions. (explicit_to_string_internal): New function; most of contents moved from canonicalize_linespec. (explicit_location_to_string): New function. (explicit_location_to_linespec): New function. (copy_event_location, delete_event_location) (event_location_to_string_const, event_location_empty_p): Handle explicit locations. * location.h (enum offset_relative_sign, struct line_offset): Move here from linespec.h. (enum event_location_type): Add EXPLICIT_LOCATION. (struct explicit_location): New structure. (explicit_location_to_string): Declare. (explicit_location_to_linespec): Declare. (new_explicit_location, get_explicit_locationp (get_explicit_location_const, initialize_explicit_location): Declare.
2015-08-12 02:09:35 +02:00
{
Mass rename `explicit' -> `explicit_loc'. BuildBot reminded me that "explicit" is a reserved keyword in C++. This patch simply renames all the (illegal) uses of "explicit". This should fix the build errors with --enable-build-with-cxx bots. gdb/ChangeLog * break-catch-throw.c (re_set_exception_catchpoint) Rename reserved C++ keyword "explicit" to "explicit_loc". * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint, update_static_tracepoint): Rename reserved C++ keyword "explicit" to "explicit_loc". * completer.c (collect_explicit_location_matches) (explicit_location_completer): Rename reserved C++ keyword "explicit" to "explicit_loc". * linespec.c (struct linespec) <explicit>: Rename to "explicit_loc". (canonicalize_linespec, create_sals_line_offset) (convert_linespec_to_sals, convert_explicit_location_to_sals) (event_location_to_sals, decode_objc): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.c (struct event_location) <explicit>: Rename to "explicit_loc". (initialize_explicit_location, new_explicit_location) (explicit_location_to_string_internal, explicit_location_to_linespec): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.h (explicit_location_to_string) (explicit_location_to_linespec, initialize_explicit_location) (new_explicit_location): Rename reserved C++ keyword "explicit" to "explicit_loc". * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Rename reserved C++ keyword "explicit" to "explicit_loc".
2015-08-13 18:48:12 +02:00
if (explicit_loc->source_filename != NULL)
Explicit locations: introduce explicit locations This patch add support for explicit locations and switches many linespec locations to this new location type. This patch also converts all linespec locations entered by the user to an explicit representation internally (thus bypassing the linespec parser when resetting the breakpoint). This patch does not introduce any user-visible changes. gdb/ChangeLog: * break-catch-throw.c (re_set_exception_catchpoint): Convert linespec into explicit location. * breakpoint.c (create_overlay_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Convert linespec into explicit location. (update_static_tracepoint): Convert linespec into explicit location. * linespec.c (enum offset_relative_sign, struct line_offset): Move location.h. (struct linespec) <expression, expr_pc, source_filename> <function_name, label_name, line_offset>: Replace with ... <explicit>: ... this. <is_linespec>: New member. (PARSER_EXPLICIT): New accessor macro. (undefined_label_error): New function. (source_file_not_found_error): New function. (linespec_parse_basic): The parser result is now an explicit location. Use PARSER_EXPLICIT to access it. Use undefined_label_error. (canonicalize_linespec): Convert canonical linespec into explicit location. Move string representation of location to explicit_location_to_linespec and use it and explicit_location_to_string to save string representations of the canonical location. (create_sals_line_offset, convert_linespec_to_sals): `ls' contains an explicit location. Update all references. (convert_explicit_location_to_sals): New function. (parse_linespec): Use PARSER_EXPLICIT to access the parser result's explicit location. (linespec_state_constructor): Initialize is_linespec. Use PARSER_EXPLICIT. (linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's result. (event_location_to_sals): For linespec locations, set is_linespec. Handle explicit locations. (decode_objc): 'ls' contains an explicit location now. Update all references. (symtabs_from_filename): Use source_file_not_found_error. * location.c (struct event_location.u) <explicit>: New member. (initialize_explicit_location): New function. (initialize_event_location): Initialize explicit locations. (new_explicit_location, get_explicit_location) (get_explicit_location_const): New functions. (explicit_to_string_internal): New function; most of contents moved from canonicalize_linespec. (explicit_location_to_string): New function. (explicit_location_to_linespec): New function. (copy_event_location, delete_event_location) (event_location_to_string_const, event_location_empty_p): Handle explicit locations. * location.h (enum offset_relative_sign, struct line_offset): Move here from linespec.h. (enum event_location_type): Add EXPLICIT_LOCATION. (struct explicit_location): New structure. (explicit_location_to_string): Declare. (explicit_location_to_linespec): Declare. (new_explicit_location, get_explicit_locationp (get_explicit_location_const, initialize_explicit_location): Declare.
2015-08-12 02:09:35 +02:00
{
EL_EXPLICIT (&tmp)->source_filename
Mass rename `explicit' -> `explicit_loc'. BuildBot reminded me that "explicit" is a reserved keyword in C++. This patch simply renames all the (illegal) uses of "explicit". This should fix the build errors with --enable-build-with-cxx bots. gdb/ChangeLog * break-catch-throw.c (re_set_exception_catchpoint) Rename reserved C++ keyword "explicit" to "explicit_loc". * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint, update_static_tracepoint): Rename reserved C++ keyword "explicit" to "explicit_loc". * completer.c (collect_explicit_location_matches) (explicit_location_completer): Rename reserved C++ keyword "explicit" to "explicit_loc". * linespec.c (struct linespec) <explicit>: Rename to "explicit_loc". (canonicalize_linespec, create_sals_line_offset) (convert_linespec_to_sals, convert_explicit_location_to_sals) (event_location_to_sals, decode_objc): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.c (struct event_location) <explicit>: Rename to "explicit_loc". (initialize_explicit_location, new_explicit_location) (explicit_location_to_string_internal, explicit_location_to_linespec): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.h (explicit_location_to_string) (explicit_location_to_linespec, initialize_explicit_location) (new_explicit_location): Rename reserved C++ keyword "explicit" to "explicit_loc". * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Rename reserved C++ keyword "explicit" to "explicit_loc".
2015-08-13 18:48:12 +02:00
= explicit_loc->source_filename;
Explicit locations: introduce explicit locations This patch add support for explicit locations and switches many linespec locations to this new location type. This patch also converts all linespec locations entered by the user to an explicit representation internally (thus bypassing the linespec parser when resetting the breakpoint). This patch does not introduce any user-visible changes. gdb/ChangeLog: * break-catch-throw.c (re_set_exception_catchpoint): Convert linespec into explicit location. * breakpoint.c (create_overlay_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Convert linespec into explicit location. (update_static_tracepoint): Convert linespec into explicit location. * linespec.c (enum offset_relative_sign, struct line_offset): Move location.h. (struct linespec) <expression, expr_pc, source_filename> <function_name, label_name, line_offset>: Replace with ... <explicit>: ... this. <is_linespec>: New member. (PARSER_EXPLICIT): New accessor macro. (undefined_label_error): New function. (source_file_not_found_error): New function. (linespec_parse_basic): The parser result is now an explicit location. Use PARSER_EXPLICIT to access it. Use undefined_label_error. (canonicalize_linespec): Convert canonical linespec into explicit location. Move string representation of location to explicit_location_to_linespec and use it and explicit_location_to_string to save string representations of the canonical location. (create_sals_line_offset, convert_linespec_to_sals): `ls' contains an explicit location. Update all references. (convert_explicit_location_to_sals): New function. (parse_linespec): Use PARSER_EXPLICIT to access the parser result's explicit location. (linespec_state_constructor): Initialize is_linespec. Use PARSER_EXPLICIT. (linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's result. (event_location_to_sals): For linespec locations, set is_linespec. Handle explicit locations. (decode_objc): 'ls' contains an explicit location now. Update all references. (symtabs_from_filename): Use source_file_not_found_error. * location.c (struct event_location.u) <explicit>: New member. (initialize_explicit_location): New function. (initialize_event_location): Initialize explicit locations. (new_explicit_location, get_explicit_location) (get_explicit_location_const): New functions. (explicit_to_string_internal): New function; most of contents moved from canonicalize_linespec. (explicit_location_to_string): New function. (explicit_location_to_linespec): New function. (copy_event_location, delete_event_location) (event_location_to_string_const, event_location_empty_p): Handle explicit locations. * location.h (enum offset_relative_sign, struct line_offset): Move here from linespec.h. (enum event_location_type): Add EXPLICIT_LOCATION. (struct explicit_location): New structure. (explicit_location_to_string): Declare. (explicit_location_to_linespec): Declare. (new_explicit_location, get_explicit_locationp (get_explicit_location_const, initialize_explicit_location): Declare.
2015-08-12 02:09:35 +02:00
}
Mass rename `explicit' -> `explicit_loc'. BuildBot reminded me that "explicit" is a reserved keyword in C++. This patch simply renames all the (illegal) uses of "explicit". This should fix the build errors with --enable-build-with-cxx bots. gdb/ChangeLog * break-catch-throw.c (re_set_exception_catchpoint) Rename reserved C++ keyword "explicit" to "explicit_loc". * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint, update_static_tracepoint): Rename reserved C++ keyword "explicit" to "explicit_loc". * completer.c (collect_explicit_location_matches) (explicit_location_completer): Rename reserved C++ keyword "explicit" to "explicit_loc". * linespec.c (struct linespec) <explicit>: Rename to "explicit_loc". (canonicalize_linespec, create_sals_line_offset) (convert_linespec_to_sals, convert_explicit_location_to_sals) (event_location_to_sals, decode_objc): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.c (struct event_location) <explicit>: Rename to "explicit_loc". (initialize_explicit_location, new_explicit_location) (explicit_location_to_string_internal, explicit_location_to_linespec): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.h (explicit_location_to_string) (explicit_location_to_linespec, initialize_explicit_location) (new_explicit_location): Rename reserved C++ keyword "explicit" to "explicit_loc". * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Rename reserved C++ keyword "explicit" to "explicit_loc".
2015-08-13 18:48:12 +02:00
if (explicit_loc->function_name != NULL)
Explicit locations: introduce explicit locations This patch add support for explicit locations and switches many linespec locations to this new location type. This patch also converts all linespec locations entered by the user to an explicit representation internally (thus bypassing the linespec parser when resetting the breakpoint). This patch does not introduce any user-visible changes. gdb/ChangeLog: * break-catch-throw.c (re_set_exception_catchpoint): Convert linespec into explicit location. * breakpoint.c (create_overlay_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Convert linespec into explicit location. (update_static_tracepoint): Convert linespec into explicit location. * linespec.c (enum offset_relative_sign, struct line_offset): Move location.h. (struct linespec) <expression, expr_pc, source_filename> <function_name, label_name, line_offset>: Replace with ... <explicit>: ... this. <is_linespec>: New member. (PARSER_EXPLICIT): New accessor macro. (undefined_label_error): New function. (source_file_not_found_error): New function. (linespec_parse_basic): The parser result is now an explicit location. Use PARSER_EXPLICIT to access it. Use undefined_label_error. (canonicalize_linespec): Convert canonical linespec into explicit location. Move string representation of location to explicit_location_to_linespec and use it and explicit_location_to_string to save string representations of the canonical location. (create_sals_line_offset, convert_linespec_to_sals): `ls' contains an explicit location. Update all references. (convert_explicit_location_to_sals): New function. (parse_linespec): Use PARSER_EXPLICIT to access the parser result's explicit location. (linespec_state_constructor): Initialize is_linespec. Use PARSER_EXPLICIT. (linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's result. (event_location_to_sals): For linespec locations, set is_linespec. Handle explicit locations. (decode_objc): 'ls' contains an explicit location now. Update all references. (symtabs_from_filename): Use source_file_not_found_error. * location.c (struct event_location.u) <explicit>: New member. (initialize_explicit_location): New function. (initialize_event_location): Initialize explicit locations. (new_explicit_location, get_explicit_location) (get_explicit_location_const): New functions. (explicit_to_string_internal): New function; most of contents moved from canonicalize_linespec. (explicit_location_to_string): New function. (explicit_location_to_linespec): New function. (copy_event_location, delete_event_location) (event_location_to_string_const, event_location_empty_p): Handle explicit locations. * location.h (enum offset_relative_sign, struct line_offset): Move here from linespec.h. (enum event_location_type): Add EXPLICIT_LOCATION. (struct explicit_location): New structure. (explicit_location_to_string): Declare. (explicit_location_to_linespec): Declare. (new_explicit_location, get_explicit_locationp (get_explicit_location_const, initialize_explicit_location): Declare.
2015-08-12 02:09:35 +02:00
EL_EXPLICIT (&tmp)->function_name
Mass rename `explicit' -> `explicit_loc'. BuildBot reminded me that "explicit" is a reserved keyword in C++. This patch simply renames all the (illegal) uses of "explicit". This should fix the build errors with --enable-build-with-cxx bots. gdb/ChangeLog * break-catch-throw.c (re_set_exception_catchpoint) Rename reserved C++ keyword "explicit" to "explicit_loc". * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint, update_static_tracepoint): Rename reserved C++ keyword "explicit" to "explicit_loc". * completer.c (collect_explicit_location_matches) (explicit_location_completer): Rename reserved C++ keyword "explicit" to "explicit_loc". * linespec.c (struct linespec) <explicit>: Rename to "explicit_loc". (canonicalize_linespec, create_sals_line_offset) (convert_linespec_to_sals, convert_explicit_location_to_sals) (event_location_to_sals, decode_objc): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.c (struct event_location) <explicit>: Rename to "explicit_loc". (initialize_explicit_location, new_explicit_location) (explicit_location_to_string_internal, explicit_location_to_linespec): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.h (explicit_location_to_string) (explicit_location_to_linespec, initialize_explicit_location) (new_explicit_location): Rename reserved C++ keyword "explicit" to "explicit_loc". * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Rename reserved C++ keyword "explicit" to "explicit_loc".
2015-08-13 18:48:12 +02:00
= explicit_loc->function_name;
Explicit locations: introduce explicit locations This patch add support for explicit locations and switches many linespec locations to this new location type. This patch also converts all linespec locations entered by the user to an explicit representation internally (thus bypassing the linespec parser when resetting the breakpoint). This patch does not introduce any user-visible changes. gdb/ChangeLog: * break-catch-throw.c (re_set_exception_catchpoint): Convert linespec into explicit location. * breakpoint.c (create_overlay_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Convert linespec into explicit location. (update_static_tracepoint): Convert linespec into explicit location. * linespec.c (enum offset_relative_sign, struct line_offset): Move location.h. (struct linespec) <expression, expr_pc, source_filename> <function_name, label_name, line_offset>: Replace with ... <explicit>: ... this. <is_linespec>: New member. (PARSER_EXPLICIT): New accessor macro. (undefined_label_error): New function. (source_file_not_found_error): New function. (linespec_parse_basic): The parser result is now an explicit location. Use PARSER_EXPLICIT to access it. Use undefined_label_error. (canonicalize_linespec): Convert canonical linespec into explicit location. Move string representation of location to explicit_location_to_linespec and use it and explicit_location_to_string to save string representations of the canonical location. (create_sals_line_offset, convert_linespec_to_sals): `ls' contains an explicit location. Update all references. (convert_explicit_location_to_sals): New function. (parse_linespec): Use PARSER_EXPLICIT to access the parser result's explicit location. (linespec_state_constructor): Initialize is_linespec. Use PARSER_EXPLICIT. (linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's result. (event_location_to_sals): For linespec locations, set is_linespec. Handle explicit locations. (decode_objc): 'ls' contains an explicit location now. Update all references. (symtabs_from_filename): Use source_file_not_found_error. * location.c (struct event_location.u) <explicit>: New member. (initialize_explicit_location): New function. (initialize_event_location): Initialize explicit locations. (new_explicit_location, get_explicit_location) (get_explicit_location_const): New functions. (explicit_to_string_internal): New function; most of contents moved from canonicalize_linespec. (explicit_location_to_string): New function. (explicit_location_to_linespec): New function. (copy_event_location, delete_event_location) (event_location_to_string_const, event_location_empty_p): Handle explicit locations. * location.h (enum offset_relative_sign, struct line_offset): Move here from linespec.h. (enum event_location_type): Add EXPLICIT_LOCATION. (struct explicit_location): New structure. (explicit_location_to_string): Declare. (explicit_location_to_linespec): Declare. (new_explicit_location, get_explicit_locationp (get_explicit_location_const, initialize_explicit_location): Declare.
2015-08-12 02:09:35 +02:00
Mass rename `explicit' -> `explicit_loc'. BuildBot reminded me that "explicit" is a reserved keyword in C++. This patch simply renames all the (illegal) uses of "explicit". This should fix the build errors with --enable-build-with-cxx bots. gdb/ChangeLog * break-catch-throw.c (re_set_exception_catchpoint) Rename reserved C++ keyword "explicit" to "explicit_loc". * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint, update_static_tracepoint): Rename reserved C++ keyword "explicit" to "explicit_loc". * completer.c (collect_explicit_location_matches) (explicit_location_completer): Rename reserved C++ keyword "explicit" to "explicit_loc". * linespec.c (struct linespec) <explicit>: Rename to "explicit_loc". (canonicalize_linespec, create_sals_line_offset) (convert_linespec_to_sals, convert_explicit_location_to_sals) (event_location_to_sals, decode_objc): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.c (struct event_location) <explicit>: Rename to "explicit_loc". (initialize_explicit_location, new_explicit_location) (explicit_location_to_string_internal, explicit_location_to_linespec): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.h (explicit_location_to_string) (explicit_location_to_linespec, initialize_explicit_location) (new_explicit_location): Rename reserved C++ keyword "explicit" to "explicit_loc". * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Rename reserved C++ keyword "explicit" to "explicit_loc".
2015-08-13 18:48:12 +02:00
if (explicit_loc->label_name != NULL)
EL_EXPLICIT (&tmp)->label_name = explicit_loc->label_name;
Explicit locations: introduce explicit locations This patch add support for explicit locations and switches many linespec locations to this new location type. This patch also converts all linespec locations entered by the user to an explicit representation internally (thus bypassing the linespec parser when resetting the breakpoint). This patch does not introduce any user-visible changes. gdb/ChangeLog: * break-catch-throw.c (re_set_exception_catchpoint): Convert linespec into explicit location. * breakpoint.c (create_overlay_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Convert linespec into explicit location. (update_static_tracepoint): Convert linespec into explicit location. * linespec.c (enum offset_relative_sign, struct line_offset): Move location.h. (struct linespec) <expression, expr_pc, source_filename> <function_name, label_name, line_offset>: Replace with ... <explicit>: ... this. <is_linespec>: New member. (PARSER_EXPLICIT): New accessor macro. (undefined_label_error): New function. (source_file_not_found_error): New function. (linespec_parse_basic): The parser result is now an explicit location. Use PARSER_EXPLICIT to access it. Use undefined_label_error. (canonicalize_linespec): Convert canonical linespec into explicit location. Move string representation of location to explicit_location_to_linespec and use it and explicit_location_to_string to save string representations of the canonical location. (create_sals_line_offset, convert_linespec_to_sals): `ls' contains an explicit location. Update all references. (convert_explicit_location_to_sals): New function. (parse_linespec): Use PARSER_EXPLICIT to access the parser result's explicit location. (linespec_state_constructor): Initialize is_linespec. Use PARSER_EXPLICIT. (linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's result. (event_location_to_sals): For linespec locations, set is_linespec. Handle explicit locations. (decode_objc): 'ls' contains an explicit location now. Update all references. (symtabs_from_filename): Use source_file_not_found_error. * location.c (struct event_location.u) <explicit>: New member. (initialize_explicit_location): New function. (initialize_event_location): Initialize explicit locations. (new_explicit_location, get_explicit_location) (get_explicit_location_const): New functions. (explicit_to_string_internal): New function; most of contents moved from canonicalize_linespec. (explicit_location_to_string): New function. (explicit_location_to_linespec): New function. (copy_event_location, delete_event_location) (event_location_to_string_const, event_location_empty_p): Handle explicit locations. * location.h (enum offset_relative_sign, struct line_offset): Move here from linespec.h. (enum event_location_type): Add EXPLICIT_LOCATION. (struct explicit_location): New structure. (explicit_location_to_string): Declare. (explicit_location_to_linespec): Declare. (new_explicit_location, get_explicit_locationp (get_explicit_location_const, initialize_explicit_location): Declare.
2015-08-12 02:09:35 +02:00
Mass rename `explicit' -> `explicit_loc'. BuildBot reminded me that "explicit" is a reserved keyword in C++. This patch simply renames all the (illegal) uses of "explicit". This should fix the build errors with --enable-build-with-cxx bots. gdb/ChangeLog * break-catch-throw.c (re_set_exception_catchpoint) Rename reserved C++ keyword "explicit" to "explicit_loc". * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint, update_static_tracepoint): Rename reserved C++ keyword "explicit" to "explicit_loc". * completer.c (collect_explicit_location_matches) (explicit_location_completer): Rename reserved C++ keyword "explicit" to "explicit_loc". * linespec.c (struct linespec) <explicit>: Rename to "explicit_loc". (canonicalize_linespec, create_sals_line_offset) (convert_linespec_to_sals, convert_explicit_location_to_sals) (event_location_to_sals, decode_objc): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.c (struct event_location) <explicit>: Rename to "explicit_loc". (initialize_explicit_location, new_explicit_location) (explicit_location_to_string_internal, explicit_location_to_linespec): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.h (explicit_location_to_string) (explicit_location_to_linespec, initialize_explicit_location) (new_explicit_location): Rename reserved C++ keyword "explicit" to "explicit_loc". * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Rename reserved C++ keyword "explicit" to "explicit_loc".
2015-08-13 18:48:12 +02:00
if (explicit_loc->line_offset.sign != LINE_OFFSET_UNKNOWN)
EL_EXPLICIT (&tmp)->line_offset = explicit_loc->line_offset;
Explicit locations: introduce explicit locations This patch add support for explicit locations and switches many linespec locations to this new location type. This patch also converts all linespec locations entered by the user to an explicit representation internally (thus bypassing the linespec parser when resetting the breakpoint). This patch does not introduce any user-visible changes. gdb/ChangeLog: * break-catch-throw.c (re_set_exception_catchpoint): Convert linespec into explicit location. * breakpoint.c (create_overlay_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Convert linespec into explicit location. (update_static_tracepoint): Convert linespec into explicit location. * linespec.c (enum offset_relative_sign, struct line_offset): Move location.h. (struct linespec) <expression, expr_pc, source_filename> <function_name, label_name, line_offset>: Replace with ... <explicit>: ... this. <is_linespec>: New member. (PARSER_EXPLICIT): New accessor macro. (undefined_label_error): New function. (source_file_not_found_error): New function. (linespec_parse_basic): The parser result is now an explicit location. Use PARSER_EXPLICIT to access it. Use undefined_label_error. (canonicalize_linespec): Convert canonical linespec into explicit location. Move string representation of location to explicit_location_to_linespec and use it and explicit_location_to_string to save string representations of the canonical location. (create_sals_line_offset, convert_linespec_to_sals): `ls' contains an explicit location. Update all references. (convert_explicit_location_to_sals): New function. (parse_linespec): Use PARSER_EXPLICIT to access the parser result's explicit location. (linespec_state_constructor): Initialize is_linespec. Use PARSER_EXPLICIT. (linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's result. (event_location_to_sals): For linespec locations, set is_linespec. Handle explicit locations. (decode_objc): 'ls' contains an explicit location now. Update all references. (symtabs_from_filename): Use source_file_not_found_error. * location.c (struct event_location.u) <explicit>: New member. (initialize_explicit_location): New function. (initialize_event_location): Initialize explicit locations. (new_explicit_location, get_explicit_location) (get_explicit_location_const): New functions. (explicit_to_string_internal): New function; most of contents moved from canonicalize_linespec. (explicit_location_to_string): New function. (explicit_location_to_linespec): New function. (copy_event_location, delete_event_location) (event_location_to_string_const, event_location_empty_p): Handle explicit locations. * location.h (enum offset_relative_sign, struct line_offset): Move here from linespec.h. (enum event_location_type): Add EXPLICIT_LOCATION. (struct explicit_location): New structure. (explicit_location_to_string): Declare. (explicit_location_to_linespec): Declare. (new_explicit_location, get_explicit_locationp (get_explicit_location_const, initialize_explicit_location): Declare.
2015-08-12 02:09:35 +02:00
}
return copy_event_location (&tmp);
}
/* See description in location.h. */
struct explicit_location *
get_explicit_location (struct event_location *location)
{
gdb_assert (EL_TYPE (location) == EXPLICIT_LOCATION);
return EL_EXPLICIT (location);
}
/* See description in location.h. */
const struct explicit_location *
get_explicit_location_const (const struct event_location *location)
{
gdb_assert (EL_TYPE (location) == EXPLICIT_LOCATION);
return EL_EXPLICIT (location);
}
/* This convenience function returns a malloc'd string which
Mass rename `explicit' -> `explicit_loc'. BuildBot reminded me that "explicit" is a reserved keyword in C++. This patch simply renames all the (illegal) uses of "explicit". This should fix the build errors with --enable-build-with-cxx bots. gdb/ChangeLog * break-catch-throw.c (re_set_exception_catchpoint) Rename reserved C++ keyword "explicit" to "explicit_loc". * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint, update_static_tracepoint): Rename reserved C++ keyword "explicit" to "explicit_loc". * completer.c (collect_explicit_location_matches) (explicit_location_completer): Rename reserved C++ keyword "explicit" to "explicit_loc". * linespec.c (struct linespec) <explicit>: Rename to "explicit_loc". (canonicalize_linespec, create_sals_line_offset) (convert_linespec_to_sals, convert_explicit_location_to_sals) (event_location_to_sals, decode_objc): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.c (struct event_location) <explicit>: Rename to "explicit_loc". (initialize_explicit_location, new_explicit_location) (explicit_location_to_string_internal, explicit_location_to_linespec): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.h (explicit_location_to_string) (explicit_location_to_linespec, initialize_explicit_location) (new_explicit_location): Rename reserved C++ keyword "explicit" to "explicit_loc". * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Rename reserved C++ keyword "explicit" to "explicit_loc".
2015-08-13 18:48:12 +02:00
represents the location in EXPLICIT_LOC.
Explicit locations: introduce explicit locations This patch add support for explicit locations and switches many linespec locations to this new location type. This patch also converts all linespec locations entered by the user to an explicit representation internally (thus bypassing the linespec parser when resetting the breakpoint). This patch does not introduce any user-visible changes. gdb/ChangeLog: * break-catch-throw.c (re_set_exception_catchpoint): Convert linespec into explicit location. * breakpoint.c (create_overlay_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Convert linespec into explicit location. (update_static_tracepoint): Convert linespec into explicit location. * linespec.c (enum offset_relative_sign, struct line_offset): Move location.h. (struct linespec) <expression, expr_pc, source_filename> <function_name, label_name, line_offset>: Replace with ... <explicit>: ... this. <is_linespec>: New member. (PARSER_EXPLICIT): New accessor macro. (undefined_label_error): New function. (source_file_not_found_error): New function. (linespec_parse_basic): The parser result is now an explicit location. Use PARSER_EXPLICIT to access it. Use undefined_label_error. (canonicalize_linespec): Convert canonical linespec into explicit location. Move string representation of location to explicit_location_to_linespec and use it and explicit_location_to_string to save string representations of the canonical location. (create_sals_line_offset, convert_linespec_to_sals): `ls' contains an explicit location. Update all references. (convert_explicit_location_to_sals): New function. (parse_linespec): Use PARSER_EXPLICIT to access the parser result's explicit location. (linespec_state_constructor): Initialize is_linespec. Use PARSER_EXPLICIT. (linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's result. (event_location_to_sals): For linespec locations, set is_linespec. Handle explicit locations. (decode_objc): 'ls' contains an explicit location now. Update all references. (symtabs_from_filename): Use source_file_not_found_error. * location.c (struct event_location.u) <explicit>: New member. (initialize_explicit_location): New function. (initialize_event_location): Initialize explicit locations. (new_explicit_location, get_explicit_location) (get_explicit_location_const): New functions. (explicit_to_string_internal): New function; most of contents moved from canonicalize_linespec. (explicit_location_to_string): New function. (explicit_location_to_linespec): New function. (copy_event_location, delete_event_location) (event_location_to_string_const, event_location_empty_p): Handle explicit locations. * location.h (enum offset_relative_sign, struct line_offset): Move here from linespec.h. (enum event_location_type): Add EXPLICIT_LOCATION. (struct explicit_location): New structure. (explicit_location_to_string): Declare. (explicit_location_to_linespec): Declare. (new_explicit_location, get_explicit_locationp (get_explicit_location_const, initialize_explicit_location): Declare.
2015-08-12 02:09:35 +02:00
AS_LINESPEC is non-zero if this string should be a linespec.
Otherwise it will be output in explicit form. */
static char *
explicit_to_string_internal (int as_linespec,
Mass rename `explicit' -> `explicit_loc'. BuildBot reminded me that "explicit" is a reserved keyword in C++. This patch simply renames all the (illegal) uses of "explicit". This should fix the build errors with --enable-build-with-cxx bots. gdb/ChangeLog * break-catch-throw.c (re_set_exception_catchpoint) Rename reserved C++ keyword "explicit" to "explicit_loc". * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint, update_static_tracepoint): Rename reserved C++ keyword "explicit" to "explicit_loc". * completer.c (collect_explicit_location_matches) (explicit_location_completer): Rename reserved C++ keyword "explicit" to "explicit_loc". * linespec.c (struct linespec) <explicit>: Rename to "explicit_loc". (canonicalize_linespec, create_sals_line_offset) (convert_linespec_to_sals, convert_explicit_location_to_sals) (event_location_to_sals, decode_objc): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.c (struct event_location) <explicit>: Rename to "explicit_loc". (initialize_explicit_location, new_explicit_location) (explicit_location_to_string_internal, explicit_location_to_linespec): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.h (explicit_location_to_string) (explicit_location_to_linespec, initialize_explicit_location) (new_explicit_location): Rename reserved C++ keyword "explicit" to "explicit_loc". * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Rename reserved C++ keyword "explicit" to "explicit_loc".
2015-08-13 18:48:12 +02:00
const struct explicit_location *explicit_loc)
Explicit locations: introduce explicit locations This patch add support for explicit locations and switches many linespec locations to this new location type. This patch also converts all linespec locations entered by the user to an explicit representation internally (thus bypassing the linespec parser when resetting the breakpoint). This patch does not introduce any user-visible changes. gdb/ChangeLog: * break-catch-throw.c (re_set_exception_catchpoint): Convert linespec into explicit location. * breakpoint.c (create_overlay_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Convert linespec into explicit location. (update_static_tracepoint): Convert linespec into explicit location. * linespec.c (enum offset_relative_sign, struct line_offset): Move location.h. (struct linespec) <expression, expr_pc, source_filename> <function_name, label_name, line_offset>: Replace with ... <explicit>: ... this. <is_linespec>: New member. (PARSER_EXPLICIT): New accessor macro. (undefined_label_error): New function. (source_file_not_found_error): New function. (linespec_parse_basic): The parser result is now an explicit location. Use PARSER_EXPLICIT to access it. Use undefined_label_error. (canonicalize_linespec): Convert canonical linespec into explicit location. Move string representation of location to explicit_location_to_linespec and use it and explicit_location_to_string to save string representations of the canonical location. (create_sals_line_offset, convert_linespec_to_sals): `ls' contains an explicit location. Update all references. (convert_explicit_location_to_sals): New function. (parse_linespec): Use PARSER_EXPLICIT to access the parser result's explicit location. (linespec_state_constructor): Initialize is_linespec. Use PARSER_EXPLICIT. (linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's result. (event_location_to_sals): For linespec locations, set is_linespec. Handle explicit locations. (decode_objc): 'ls' contains an explicit location now. Update all references. (symtabs_from_filename): Use source_file_not_found_error. * location.c (struct event_location.u) <explicit>: New member. (initialize_explicit_location): New function. (initialize_event_location): Initialize explicit locations. (new_explicit_location, get_explicit_location) (get_explicit_location_const): New functions. (explicit_to_string_internal): New function; most of contents moved from canonicalize_linespec. (explicit_location_to_string): New function. (explicit_location_to_linespec): New function. (copy_event_location, delete_event_location) (event_location_to_string_const, event_location_empty_p): Handle explicit locations. * location.h (enum offset_relative_sign, struct line_offset): Move here from linespec.h. (enum event_location_type): Add EXPLICIT_LOCATION. (struct explicit_location): New structure. (explicit_location_to_string): Declare. (explicit_location_to_linespec): Declare. (new_explicit_location, get_explicit_locationp (get_explicit_location_const, initialize_explicit_location): Declare.
2015-08-12 02:09:35 +02:00
{
int need_space = 0;
Eliminate make_cleanup_ui_file_delete / make ui_file a class hierarchy This patch starts from the desire to eliminate make_cleanup_ui_file_delete, but then goes beyond. It makes ui_file & friends a real C++ class hierarchy, and switches temporary ui_file-like objects to stack-based allocation. - mem_fileopen -> string_file mem_fileopen is replaced with a new string_file class that is treated as a value class created on the stack. This alone eliminates most make_cleanup_ui_file_delete calls, and, simplifies code a whole lot (diffstat shows around 1k loc dropped.) string_file's internal buffer is a std::string, thus the "string" in the name. This simplifies the implementation much, compared to mem_fileopen, which managed growing its internal buffer manually. - ui_file_as_string, ui_file_strdup, ui_file_obsavestring all gone The new string_file class has a string() method that provides direct writable access to the internal std::string buffer. This replaced ui_file_as_string, which forced a copy of the same data the stream had inside. With direct access via a writable reference, we can instead move the string out of the string_stream, avoiding deep string copying. Related, ui_file_xstrdup calls are replaced with xstrdup'ping the stream's string, and ui_file_obsavestring is replaced by obstack_copy0. With all those out of the way, getting rid of the weird ui_file_put mechanism was possible. - New ui_file::printf, ui_file::puts, etc. methods These simplify / clarify client code. I considered splitting client-code changes, like these, e.g.: - stb = mem_fileopen (); - fprintf_unfiltered (stb, "%s%s%s", - _("The valid values are:\n"), - regdesc, - _("The default is \"std\".")); + string_file stb; + stb.printf ("%s%s%s", + _("The valid values are:\n"), + regdesc, + _("The default is \"std\".")); In two steps, with the first step leaving fprintf_unfiltered (etc.) calls in place, and only afterwards do a pass to change all those to call stb.printf etc.. I didn't do that split, because (when I tried), it turned out to be pointless make-work: the first pass would have to touch the fprintf_unfiltered line anyway, to replace "stb" with "&stb". - gdb_fopen replaced with stack-based objects This avoids the need for cleanups or unique_ptr's. I.e., this: struct ui_file *file = gdb_fopen (filename, "w"); if (filename == NULL) perror_with_name (filename); cleanups = make_cleanup_ui_file_delete (file); // use file. do_cleanups (cleanups); is replaced with this: stdio_file file; if (!file.open (filename, "w")) perror_with_name (filename); // use file. - odd contorsions in null_file_write / null_file_fputs around when to call to_fputs / to_write eliminated. - Global null_stream object A few places that were allocating a ui_file in order to print to "nowhere" are adjusted to instead refer to a new 'null_stream' global stream. - TUI's tui_sfileopen eliminated. TUI's ui_file much simplified The TUI's ui_file was serving a dual purpose. It supported being used as string buffer, and supported being backed by a stdio FILE. The string buffer part is gone, replaced by using of string_file. The 'FILE *' support is now much simplified, by making the TUI's ui_file inherit from stdio_file. gdb/ChangeLog: 2017-02-02 Pedro Alves <palves@redhat.com> * ada-lang.c (type_as_string): Use string_file. * ada-valprint.c (ada_print_floating): Use string_file. * ada-varobj.c (ada_varobj_scalar_image) (ada_varobj_get_value_image): Use string_file. * aix-thread.c (aix_thread_extra_thread_info): Use string_file. * arm-tdep.c (_initialize_arm_tdep): Use string_printf. * breakpoint.c (update_inserted_breakpoint_locations) (insert_breakpoint_locations, reattach_breakpoints) (print_breakpoint_location, print_one_detail_ranged_breakpoint) (print_it_watchpoint): Use string_file. (save_breakpoints): Use stdio_file. * c-exp.y (oper): Use string_file. * cli/cli-logging.c (set_logging_redirect): Use ui_file_up and tee_file. (pop_output_files): Use delete. (handle_redirections): Use stdio_file and tee_file. * cli/cli-setshow.c (do_show_command): Use string_file. * compile/compile-c-support.c (c_compute_program): Use string_file. * compile/compile-c-symbols.c (generate_vla_size): Take a 'string_file &' instead of a 'ui_file *'. (generate_c_for_for_one_variable): Take a 'string_file &' instead of a 'ui_file *'. Use string_file. (generate_c_for_variable_locations): Take a 'string_file &' instead of a 'ui_file *'. * compile/compile-internal.h (generate_c_for_for_one_variable): Take a 'string_file &' instead of a 'ui_file *'. * compile/compile-loc2c.c (push, pushf, unary, binary) (print_label, pushf_register_address, pushf_register) (do_compile_dwarf_expr_to_c): Take a 'string_file &' instead of a 'ui_file *'. Adjust. * compile/compile.c (compile_to_object): Use string_file. * compile/compile.h (compile_dwarf_expr_to_c) (compile_dwarf_bounds_to_c): Take a 'string_file &' instead of a 'ui_file *'. * cp-support.c (inspect_type): Use string_file and obstack_copy0. (replace_typedefs_qualified_name): Use string_file and obstack_copy0. * disasm.c (gdb_pretty_print_insn): Use string_file. (gdb_disassembly): Adjust reference the null_stream global. (do_ui_file_delete): Delete. (gdb_insn_length): Use null_stream. * dummy-frame.c (maintenance_print_dummy_frames): Use stdio_file. * dwarf2loc.c (dwarf2_compile_property_to_c) (locexpr_generate_c_location, loclist_generate_c_location): Take a 'string_file &' instead of a 'ui_file *'. * dwarf2loc.h (dwarf2_compile_property_to_c): Likewise. * dwarf2read.c (do_ui_file_peek_last): Delete. (dwarf2_compute_name): Use string_file. * event-top.c (gdb_setup_readline): Use stdio_file. * gdbarch.sh (verify_gdbarch): Use string_file. * gdbtypes.c (safe_parse_type): Use null_stream. * guile/scm-breakpoint.c (gdbscm_breakpoint_commands): Use string_file. * guile/scm-disasm.c (gdbscm_print_insn_from_port): Take a 'string_file *' instead of a 'ui_file *'. (gdbscm_arch_disassemble): Use string_file. * guile/scm-frame.c (frscm_print_frame_smob): Use string_file. * guile/scm-ports.c (class ioscm_file_port): Now a class that inherits from ui_file. (ioscm_file_port_delete, ioscm_file_port_rewind) (ioscm_file_port_put): Delete. (ioscm_file_port_write): Rename to ... (ioscm_file_port::write): ... this. Remove file_port_magic checks. (ioscm_file_port_new): Delete. (ioscm_with_output_to_port_worker): Use ioscm_file_port and ui_file_up. * guile/scm-type.c (tyscm_type_name): Use string_file. * guile/scm-value.c (vlscm_print_value_smob, gdbscm_value_print): Use string_file. * infcmd.c (print_return_value_1): Use string_file. * infrun.c (print_target_wait_results): Use string_file. * language.c (add_language): Use string_file. * location.c (explicit_to_string_internal): Use string_file. * main.c (captured_main_1): Use null_file. * maint.c (maintenance_print_architecture): Use stdio_file. * mi/mi-cmd-stack.c (list_arg_or_local): Use string_file. * mi/mi-common.h (struct mi_interp) <out, err, log, targ, event_channel>: Change type to mi_console_file pointer. * mi/mi-console.c (mi_console_file_fputs, mi_console_file_flush) (mi_console_file_delete): Delete. (struct mi_console_file): Delete. (mi_console_file_magic): Delete. (mi_console_file_new): Delete. (mi_console_file::mi_console_file): New. (mi_console_file_delete): Delete. (mi_console_file_fputs): Delete. (mi_console_file::write): New. (mi_console_raw_packet): Delete. (mi_console_file::flush): New. (mi_console_file_flush): Delete. (mi_console_set_raw): Rename to ... (mi_console_file::set_raw): ... this. * mi/mi-console.h (class mi_console_file): New class. (mi_console_file_new, mi_console_set_raw): Delete. * mi/mi-interp.c (mi_interpreter_init): Use mi_console_file. (mi_set_logging): Use delete and tee_file. Adjust. * mi/mi-main.c (output_register): Use string_file. (mi_cmd_data_evaluate_expression): Use string_file. (mi_cmd_data_read_memory): Use string_file. (mi_cmd_execute, print_variable_or_computed): Use string_file. * mi/mi-out.c (mi_ui_out::main_stream): New. (mi_ui_out::rewind): Use main_stream and string_file. (mi_ui_out::put): Use main_stream and string_file. (mi_ui_out::mi_ui_out): Remove 'stream' parameter. Allocate a 'string_file' instead. (mi_out_new): Don't allocate a mem_fileopen stream here. * mi/mi-out.h (mi_ui_out::mi_ui_out): Remove 'stream' parameter. (mi_ui_out::main_stream): Declare method. * printcmd.c (eval_command): Use string_file. * psymtab.c (maintenance_print_psymbols): Use stdio_file. * python/py-arch.c (archpy_disassemble): Use string_file. * python/py-breakpoint.c (bppy_get_commands): Use string_file. * python/py-frame.c (frapy_str): Use string_file. * python/py-framefilter.c (py_print_type, py_print_single_arg): Use string_file. * python/py-type.c (typy_str): Use string_file. * python/py-unwind.c (unwind_infopy_str): Use string_file. * python/py-value.c (valpy_str): Use string_file. * record-btrace.c (btrace_insn_history): Use string_file. * regcache.c (regcache_print): Use stdio_file. * reggroups.c (maintenance_print_reggroups): Use stdio_file. * remote.c (escape_buffer): Use string_file. * rust-lang.c (rust_get_disr_info): Use string_file. * serial.c (serial_open_ops_1): Use stdio_file. (do_serial_close): Use delete. * stack.c (print_frame_arg): Use string_file. (print_frame_args): Remove local mem_fileopen stream, not used. (print_frame): Use string_file. * symmisc.c (maintenance_print_symbols): Use stdio_file. * symtab.h (struct symbol_computed_ops) <generate_c_location>: Take a 'string_file *' instead of a 'ui_file *'. * top.c (new_ui): Use stdio_file and stderr_file. (free_ui): Use delete. (execute_command_to_string): Use string_file. (quit_confirm): Use string_file. * tracepoint.c (collection_list::append_exp): Use string_file. * tui/tui-disasm.c (tui_disassemble): Use string_file. * tui/tui-file.c: Don't include "ui-file.h". (enum streamtype, struct tui_stream): Delete. (tui_file_new, tui_file_delete, tui_fileopen, tui_sfileopen) (tui_file_isatty, tui_file_rewind, tui_file_put): Delete. (tui_file::tui_file): New method. (tui_file_fputs): Delete. (tui_file_get_strbuf): Delete. (tui_file::puts): New method. (tui_file_adjust_strbuf): Delete. (tui_file_flush): Delete. (tui_file::flush): New method. * tui/tui-file.h: Tweak intro comment. Include ui-file.h. (tui_fileopen, tui_sfileopen, tui_file_get_strbuf) (tui_file_adjust_strbuf): Delete declarations. (class tui_file): New class. * tui/tui-io.c (tui_initialize_io): Use tui_file. * tui/tui-regs.c (tui_restore_gdbout): Use delete. (tui_register_format): Use string_stream. * tui/tui-stack.c (tui_make_status_line): Use string_file. (tui_get_function_from_frame): Use string_file. * typeprint.c (type_to_string): Use string_file. * ui-file.c (struct ui_file, ui_file_magic, ui_file_new): Delete. (null_stream): New global. (ui_file_delete): Delete. (ui_file::ui_file): New. (null_file_isatty): Delete. (ui_file::~ui_file): New. (null_file_rewind): Delete. (ui_file::printf): New. (null_file_put): Delete. (null_file_flush): Delete. (ui_file::putstr): New. (null_file_write): Delete. (ui_file::putstrn): New. (null_file_read): Delete. (ui_file::putc): New. (null_file_fputs): Delete. (null_file_write_async_safe): Delete. (ui_file::vprintf): New. (null_file_delete): Delete. (null_file::write): New. (null_file_fseek): Delete. (null_file::puts): New. (ui_file_data): Delete. (null_file::write_async_safe): New. (gdb_flush, ui_file_isatty): Adjust. (ui_file_put, ui_file_rewind): Delete. (ui_file_write): Adjust. (ui_file_write_for_put): Delete. (ui_file_write_async_safe, ui_file_read): Adjust. (ui_file_fseek): Delete. (fputs_unfiltered): Adjust. (set_ui_file_flush, set_ui_file_isatty, set_ui_file_rewind) (set_ui_file_put, set_ui_file_write, set_ui_file_write_async_safe) (set_ui_file_read, set_ui_file_fputs, set_ui_file_fseek) (set_ui_file_data): Delete. (string_file::~string_file, string_file::write) (struct accumulated_ui_file, do_ui_file_xstrdup, ui_file_xstrdup) (do_ui_file_as_string, ui_file_as_string): Delete. (do_ui_file_obsavestring, ui_file_obsavestring): Delete. (struct mem_file): Delete. (mem_file_new): Delete. (stdio_file::stdio_file): New. (mem_file_delete): Delete. (stdio_file::stdio_file): New. (mem_fileopen): Delete. (stdio_file::~stdio_file): New. (mem_file_rewind): Delete. (stdio_file::set_stream): New. (mem_file_put): Delete. (stdio_file::open): New. (mem_file_write): Delete. (stdio_file_magic, struct stdio_file): Delete. (stdio_file_new, stdio_file_delete, stdio_file_flush): Delete. (stdio_file::flush): New. (stdio_file_read): Rename to ... (stdio_file::read): ... this. Adjust. (stdio_file_write): Rename to ... (stdio_file::write): ... this. Adjust. (stdio_file_write_async_safe): Rename to ... (stdio_file::write_async_safe) ... this. Adjust. (stdio_file_fputs): Rename to ... (stdio_file::puts) ... this. Adjust. (stdio_file_isatty): Delete. (stdio_file_fseek): Delete. (stdio_file::isatty): New. (stderr_file_write): Rename to ... (stderr_file::write) ... this. Adjust. (stderr_file_fputs): Rename to ... (stderr_file::puts) ... this. Adjust. (stderr_fileopen, stdio_fileopen, gdb_fopen): Delete. (stderr_file::stderr_file): New. (tee_file_magic): Delete. (struct tee_file): Delete. (tee_file::tee_file): New. (tee_file_new): Delete. (tee_file::~tee_file): New. (tee_file_delete): Delete. (tee_file_flush): Rename to ... (tee_file::flush): ... this. Adjust. (tee_file_write): Rename to ... (tee_file::write): ... this. Adjust. (tee_file::write_async_safe): New. (tee_file_fputs): Rename to ... (tee_file::puts): ... this. Adjust. (tee_file_isatty): Rename to ... (tee_file::isatty): ... this. Adjust. * ui-file.h (struct obstack, struct ui_file): Don't forward-declare. (ui_file_new, ui_file_flush_ftype, set_ui_file_flush) (ui_file_write_ftype) (set_ui_file_write, ui_file_fputs_ftype, set_ui_file_fputs) (ui_file_write_async_safe_ftype, set_ui_file_write_async_safe) (ui_file_read_ftype, set_ui_file_read, ui_file_isatty_ftype) (set_ui_file_isatty, ui_file_rewind_ftype, set_ui_file_rewind) (ui_file_put_method_ftype, ui_file_put_ftype, set_ui_file_put) (ui_file_delete_ftype, set_ui_file_data, ui_file_fseek_ftype) (set_ui_file_fseek): Delete. (ui_file_data, ui_file_delete, ui_file_rewind) (struct ui_file): New. (ui_file_up): New. (class null_file): New. (null_stream): Declare. (ui_file_write_for_put, ui_file_put): Delete. (ui_file_xstrdup, ui_file_as_string, ui_file_obsavestring): Delete. (ui_file_fseek, mem_fileopen, stdio_fileopen, stderr_fileopen) (gdb_fopen, tee_file_new): Delete. (struct string_file): New. (struct stdio_file): New. (stdio_file_up): New. (struct stderr_file): New. (class tee_file): New. * ui-out.c (ui_out::field_stream): Take a 'string_file &' instead of a 'ui_file *'. Adjust. * ui-out.h (class ui_out) <field_stream>: Likewise. * utils.c (do_ui_file_delete, make_cleanup_ui_file_delete) (null_stream): Delete. (error_stream): Take a 'string_file &' instead of a 'ui_file *'. Adjust. * utils.h (struct ui_file): Delete forward declaration.. (make_cleanup_ui_file_delete, null_stream): Delete declarations. (error_stream): Take a 'string_file &' instead of a 'ui_file *'. * varobj.c (varobj_value_get_print_value): Use string_file. * xtensa-tdep.c (xtensa_verify_config): Use string_file. * gdbarch.c: Regenerate.
2017-02-02 12:11:47 +01:00
char space = as_linespec ? ':' : ' ';
string_file buf;
Explicit locations: introduce explicit locations This patch add support for explicit locations and switches many linespec locations to this new location type. This patch also converts all linespec locations entered by the user to an explicit representation internally (thus bypassing the linespec parser when resetting the breakpoint). This patch does not introduce any user-visible changes. gdb/ChangeLog: * break-catch-throw.c (re_set_exception_catchpoint): Convert linespec into explicit location. * breakpoint.c (create_overlay_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Convert linespec into explicit location. (update_static_tracepoint): Convert linespec into explicit location. * linespec.c (enum offset_relative_sign, struct line_offset): Move location.h. (struct linespec) <expression, expr_pc, source_filename> <function_name, label_name, line_offset>: Replace with ... <explicit>: ... this. <is_linespec>: New member. (PARSER_EXPLICIT): New accessor macro. (undefined_label_error): New function. (source_file_not_found_error): New function. (linespec_parse_basic): The parser result is now an explicit location. Use PARSER_EXPLICIT to access it. Use undefined_label_error. (canonicalize_linespec): Convert canonical linespec into explicit location. Move string representation of location to explicit_location_to_linespec and use it and explicit_location_to_string to save string representations of the canonical location. (create_sals_line_offset, convert_linespec_to_sals): `ls' contains an explicit location. Update all references. (convert_explicit_location_to_sals): New function. (parse_linespec): Use PARSER_EXPLICIT to access the parser result's explicit location. (linespec_state_constructor): Initialize is_linespec. Use PARSER_EXPLICIT. (linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's result. (event_location_to_sals): For linespec locations, set is_linespec. Handle explicit locations. (decode_objc): 'ls' contains an explicit location now. Update all references. (symtabs_from_filename): Use source_file_not_found_error. * location.c (struct event_location.u) <explicit>: New member. (initialize_explicit_location): New function. (initialize_event_location): Initialize explicit locations. (new_explicit_location, get_explicit_location) (get_explicit_location_const): New functions. (explicit_to_string_internal): New function; most of contents moved from canonicalize_linespec. (explicit_location_to_string): New function. (explicit_location_to_linespec): New function. (copy_event_location, delete_event_location) (event_location_to_string_const, event_location_empty_p): Handle explicit locations. * location.h (enum offset_relative_sign, struct line_offset): Move here from linespec.h. (enum event_location_type): Add EXPLICIT_LOCATION. (struct explicit_location): New structure. (explicit_location_to_string): Declare. (explicit_location_to_linespec): Declare. (new_explicit_location, get_explicit_locationp (get_explicit_location_const, initialize_explicit_location): Declare.
2015-08-12 02:09:35 +02:00
Mass rename `explicit' -> `explicit_loc'. BuildBot reminded me that "explicit" is a reserved keyword in C++. This patch simply renames all the (illegal) uses of "explicit". This should fix the build errors with --enable-build-with-cxx bots. gdb/ChangeLog * break-catch-throw.c (re_set_exception_catchpoint) Rename reserved C++ keyword "explicit" to "explicit_loc". * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint, update_static_tracepoint): Rename reserved C++ keyword "explicit" to "explicit_loc". * completer.c (collect_explicit_location_matches) (explicit_location_completer): Rename reserved C++ keyword "explicit" to "explicit_loc". * linespec.c (struct linespec) <explicit>: Rename to "explicit_loc". (canonicalize_linespec, create_sals_line_offset) (convert_linespec_to_sals, convert_explicit_location_to_sals) (event_location_to_sals, decode_objc): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.c (struct event_location) <explicit>: Rename to "explicit_loc". (initialize_explicit_location, new_explicit_location) (explicit_location_to_string_internal, explicit_location_to_linespec): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.h (explicit_location_to_string) (explicit_location_to_linespec, initialize_explicit_location) (new_explicit_location): Rename reserved C++ keyword "explicit" to "explicit_loc". * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Rename reserved C++ keyword "explicit" to "explicit_loc".
2015-08-13 18:48:12 +02:00
if (explicit_loc->source_filename != NULL)
Explicit locations: introduce explicit locations This patch add support for explicit locations and switches many linespec locations to this new location type. This patch also converts all linespec locations entered by the user to an explicit representation internally (thus bypassing the linespec parser when resetting the breakpoint). This patch does not introduce any user-visible changes. gdb/ChangeLog: * break-catch-throw.c (re_set_exception_catchpoint): Convert linespec into explicit location. * breakpoint.c (create_overlay_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Convert linespec into explicit location. (update_static_tracepoint): Convert linespec into explicit location. * linespec.c (enum offset_relative_sign, struct line_offset): Move location.h. (struct linespec) <expression, expr_pc, source_filename> <function_name, label_name, line_offset>: Replace with ... <explicit>: ... this. <is_linespec>: New member. (PARSER_EXPLICIT): New accessor macro. (undefined_label_error): New function. (source_file_not_found_error): New function. (linespec_parse_basic): The parser result is now an explicit location. Use PARSER_EXPLICIT to access it. Use undefined_label_error. (canonicalize_linespec): Convert canonical linespec into explicit location. Move string representation of location to explicit_location_to_linespec and use it and explicit_location_to_string to save string representations of the canonical location. (create_sals_line_offset, convert_linespec_to_sals): `ls' contains an explicit location. Update all references. (convert_explicit_location_to_sals): New function. (parse_linespec): Use PARSER_EXPLICIT to access the parser result's explicit location. (linespec_state_constructor): Initialize is_linespec. Use PARSER_EXPLICIT. (linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's result. (event_location_to_sals): For linespec locations, set is_linespec. Handle explicit locations. (decode_objc): 'ls' contains an explicit location now. Update all references. (symtabs_from_filename): Use source_file_not_found_error. * location.c (struct event_location.u) <explicit>: New member. (initialize_explicit_location): New function. (initialize_event_location): Initialize explicit locations. (new_explicit_location, get_explicit_location) (get_explicit_location_const): New functions. (explicit_to_string_internal): New function; most of contents moved from canonicalize_linespec. (explicit_location_to_string): New function. (explicit_location_to_linespec): New function. (copy_event_location, delete_event_location) (event_location_to_string_const, event_location_empty_p): Handle explicit locations. * location.h (enum offset_relative_sign, struct line_offset): Move here from linespec.h. (enum event_location_type): Add EXPLICIT_LOCATION. (struct explicit_location): New structure. (explicit_location_to_string): Declare. (explicit_location_to_linespec): Declare. (new_explicit_location, get_explicit_locationp (get_explicit_location_const, initialize_explicit_location): Declare.
2015-08-12 02:09:35 +02:00
{
if (!as_linespec)
Eliminate make_cleanup_ui_file_delete / make ui_file a class hierarchy This patch starts from the desire to eliminate make_cleanup_ui_file_delete, but then goes beyond. It makes ui_file & friends a real C++ class hierarchy, and switches temporary ui_file-like objects to stack-based allocation. - mem_fileopen -> string_file mem_fileopen is replaced with a new string_file class that is treated as a value class created on the stack. This alone eliminates most make_cleanup_ui_file_delete calls, and, simplifies code a whole lot (diffstat shows around 1k loc dropped.) string_file's internal buffer is a std::string, thus the "string" in the name. This simplifies the implementation much, compared to mem_fileopen, which managed growing its internal buffer manually. - ui_file_as_string, ui_file_strdup, ui_file_obsavestring all gone The new string_file class has a string() method that provides direct writable access to the internal std::string buffer. This replaced ui_file_as_string, which forced a copy of the same data the stream had inside. With direct access via a writable reference, we can instead move the string out of the string_stream, avoiding deep string copying. Related, ui_file_xstrdup calls are replaced with xstrdup'ping the stream's string, and ui_file_obsavestring is replaced by obstack_copy0. With all those out of the way, getting rid of the weird ui_file_put mechanism was possible. - New ui_file::printf, ui_file::puts, etc. methods These simplify / clarify client code. I considered splitting client-code changes, like these, e.g.: - stb = mem_fileopen (); - fprintf_unfiltered (stb, "%s%s%s", - _("The valid values are:\n"), - regdesc, - _("The default is \"std\".")); + string_file stb; + stb.printf ("%s%s%s", + _("The valid values are:\n"), + regdesc, + _("The default is \"std\".")); In two steps, with the first step leaving fprintf_unfiltered (etc.) calls in place, and only afterwards do a pass to change all those to call stb.printf etc.. I didn't do that split, because (when I tried), it turned out to be pointless make-work: the first pass would have to touch the fprintf_unfiltered line anyway, to replace "stb" with "&stb". - gdb_fopen replaced with stack-based objects This avoids the need for cleanups or unique_ptr's. I.e., this: struct ui_file *file = gdb_fopen (filename, "w"); if (filename == NULL) perror_with_name (filename); cleanups = make_cleanup_ui_file_delete (file); // use file. do_cleanups (cleanups); is replaced with this: stdio_file file; if (!file.open (filename, "w")) perror_with_name (filename); // use file. - odd contorsions in null_file_write / null_file_fputs around when to call to_fputs / to_write eliminated. - Global null_stream object A few places that were allocating a ui_file in order to print to "nowhere" are adjusted to instead refer to a new 'null_stream' global stream. - TUI's tui_sfileopen eliminated. TUI's ui_file much simplified The TUI's ui_file was serving a dual purpose. It supported being used as string buffer, and supported being backed by a stdio FILE. The string buffer part is gone, replaced by using of string_file. The 'FILE *' support is now much simplified, by making the TUI's ui_file inherit from stdio_file. gdb/ChangeLog: 2017-02-02 Pedro Alves <palves@redhat.com> * ada-lang.c (type_as_string): Use string_file. * ada-valprint.c (ada_print_floating): Use string_file. * ada-varobj.c (ada_varobj_scalar_image) (ada_varobj_get_value_image): Use string_file. * aix-thread.c (aix_thread_extra_thread_info): Use string_file. * arm-tdep.c (_initialize_arm_tdep): Use string_printf. * breakpoint.c (update_inserted_breakpoint_locations) (insert_breakpoint_locations, reattach_breakpoints) (print_breakpoint_location, print_one_detail_ranged_breakpoint) (print_it_watchpoint): Use string_file. (save_breakpoints): Use stdio_file. * c-exp.y (oper): Use string_file. * cli/cli-logging.c (set_logging_redirect): Use ui_file_up and tee_file. (pop_output_files): Use delete. (handle_redirections): Use stdio_file and tee_file. * cli/cli-setshow.c (do_show_command): Use string_file. * compile/compile-c-support.c (c_compute_program): Use string_file. * compile/compile-c-symbols.c (generate_vla_size): Take a 'string_file &' instead of a 'ui_file *'. (generate_c_for_for_one_variable): Take a 'string_file &' instead of a 'ui_file *'. Use string_file. (generate_c_for_variable_locations): Take a 'string_file &' instead of a 'ui_file *'. * compile/compile-internal.h (generate_c_for_for_one_variable): Take a 'string_file &' instead of a 'ui_file *'. * compile/compile-loc2c.c (push, pushf, unary, binary) (print_label, pushf_register_address, pushf_register) (do_compile_dwarf_expr_to_c): Take a 'string_file &' instead of a 'ui_file *'. Adjust. * compile/compile.c (compile_to_object): Use string_file. * compile/compile.h (compile_dwarf_expr_to_c) (compile_dwarf_bounds_to_c): Take a 'string_file &' instead of a 'ui_file *'. * cp-support.c (inspect_type): Use string_file and obstack_copy0. (replace_typedefs_qualified_name): Use string_file and obstack_copy0. * disasm.c (gdb_pretty_print_insn): Use string_file. (gdb_disassembly): Adjust reference the null_stream global. (do_ui_file_delete): Delete. (gdb_insn_length): Use null_stream. * dummy-frame.c (maintenance_print_dummy_frames): Use stdio_file. * dwarf2loc.c (dwarf2_compile_property_to_c) (locexpr_generate_c_location, loclist_generate_c_location): Take a 'string_file &' instead of a 'ui_file *'. * dwarf2loc.h (dwarf2_compile_property_to_c): Likewise. * dwarf2read.c (do_ui_file_peek_last): Delete. (dwarf2_compute_name): Use string_file. * event-top.c (gdb_setup_readline): Use stdio_file. * gdbarch.sh (verify_gdbarch): Use string_file. * gdbtypes.c (safe_parse_type): Use null_stream. * guile/scm-breakpoint.c (gdbscm_breakpoint_commands): Use string_file. * guile/scm-disasm.c (gdbscm_print_insn_from_port): Take a 'string_file *' instead of a 'ui_file *'. (gdbscm_arch_disassemble): Use string_file. * guile/scm-frame.c (frscm_print_frame_smob): Use string_file. * guile/scm-ports.c (class ioscm_file_port): Now a class that inherits from ui_file. (ioscm_file_port_delete, ioscm_file_port_rewind) (ioscm_file_port_put): Delete. (ioscm_file_port_write): Rename to ... (ioscm_file_port::write): ... this. Remove file_port_magic checks. (ioscm_file_port_new): Delete. (ioscm_with_output_to_port_worker): Use ioscm_file_port and ui_file_up. * guile/scm-type.c (tyscm_type_name): Use string_file. * guile/scm-value.c (vlscm_print_value_smob, gdbscm_value_print): Use string_file. * infcmd.c (print_return_value_1): Use string_file. * infrun.c (print_target_wait_results): Use string_file. * language.c (add_language): Use string_file. * location.c (explicit_to_string_internal): Use string_file. * main.c (captured_main_1): Use null_file. * maint.c (maintenance_print_architecture): Use stdio_file. * mi/mi-cmd-stack.c (list_arg_or_local): Use string_file. * mi/mi-common.h (struct mi_interp) <out, err, log, targ, event_channel>: Change type to mi_console_file pointer. * mi/mi-console.c (mi_console_file_fputs, mi_console_file_flush) (mi_console_file_delete): Delete. (struct mi_console_file): Delete. (mi_console_file_magic): Delete. (mi_console_file_new): Delete. (mi_console_file::mi_console_file): New. (mi_console_file_delete): Delete. (mi_console_file_fputs): Delete. (mi_console_file::write): New. (mi_console_raw_packet): Delete. (mi_console_file::flush): New. (mi_console_file_flush): Delete. (mi_console_set_raw): Rename to ... (mi_console_file::set_raw): ... this. * mi/mi-console.h (class mi_console_file): New class. (mi_console_file_new, mi_console_set_raw): Delete. * mi/mi-interp.c (mi_interpreter_init): Use mi_console_file. (mi_set_logging): Use delete and tee_file. Adjust. * mi/mi-main.c (output_register): Use string_file. (mi_cmd_data_evaluate_expression): Use string_file. (mi_cmd_data_read_memory): Use string_file. (mi_cmd_execute, print_variable_or_computed): Use string_file. * mi/mi-out.c (mi_ui_out::main_stream): New. (mi_ui_out::rewind): Use main_stream and string_file. (mi_ui_out::put): Use main_stream and string_file. (mi_ui_out::mi_ui_out): Remove 'stream' parameter. Allocate a 'string_file' instead. (mi_out_new): Don't allocate a mem_fileopen stream here. * mi/mi-out.h (mi_ui_out::mi_ui_out): Remove 'stream' parameter. (mi_ui_out::main_stream): Declare method. * printcmd.c (eval_command): Use string_file. * psymtab.c (maintenance_print_psymbols): Use stdio_file. * python/py-arch.c (archpy_disassemble): Use string_file. * python/py-breakpoint.c (bppy_get_commands): Use string_file. * python/py-frame.c (frapy_str): Use string_file. * python/py-framefilter.c (py_print_type, py_print_single_arg): Use string_file. * python/py-type.c (typy_str): Use string_file. * python/py-unwind.c (unwind_infopy_str): Use string_file. * python/py-value.c (valpy_str): Use string_file. * record-btrace.c (btrace_insn_history): Use string_file. * regcache.c (regcache_print): Use stdio_file. * reggroups.c (maintenance_print_reggroups): Use stdio_file. * remote.c (escape_buffer): Use string_file. * rust-lang.c (rust_get_disr_info): Use string_file. * serial.c (serial_open_ops_1): Use stdio_file. (do_serial_close): Use delete. * stack.c (print_frame_arg): Use string_file. (print_frame_args): Remove local mem_fileopen stream, not used. (print_frame): Use string_file. * symmisc.c (maintenance_print_symbols): Use stdio_file. * symtab.h (struct symbol_computed_ops) <generate_c_location>: Take a 'string_file *' instead of a 'ui_file *'. * top.c (new_ui): Use stdio_file and stderr_file. (free_ui): Use delete. (execute_command_to_string): Use string_file. (quit_confirm): Use string_file. * tracepoint.c (collection_list::append_exp): Use string_file. * tui/tui-disasm.c (tui_disassemble): Use string_file. * tui/tui-file.c: Don't include "ui-file.h". (enum streamtype, struct tui_stream): Delete. (tui_file_new, tui_file_delete, tui_fileopen, tui_sfileopen) (tui_file_isatty, tui_file_rewind, tui_file_put): Delete. (tui_file::tui_file): New method. (tui_file_fputs): Delete. (tui_file_get_strbuf): Delete. (tui_file::puts): New method. (tui_file_adjust_strbuf): Delete. (tui_file_flush): Delete. (tui_file::flush): New method. * tui/tui-file.h: Tweak intro comment. Include ui-file.h. (tui_fileopen, tui_sfileopen, tui_file_get_strbuf) (tui_file_adjust_strbuf): Delete declarations. (class tui_file): New class. * tui/tui-io.c (tui_initialize_io): Use tui_file. * tui/tui-regs.c (tui_restore_gdbout): Use delete. (tui_register_format): Use string_stream. * tui/tui-stack.c (tui_make_status_line): Use string_file. (tui_get_function_from_frame): Use string_file. * typeprint.c (type_to_string): Use string_file. * ui-file.c (struct ui_file, ui_file_magic, ui_file_new): Delete. (null_stream): New global. (ui_file_delete): Delete. (ui_file::ui_file): New. (null_file_isatty): Delete. (ui_file::~ui_file): New. (null_file_rewind): Delete. (ui_file::printf): New. (null_file_put): Delete. (null_file_flush): Delete. (ui_file::putstr): New. (null_file_write): Delete. (ui_file::putstrn): New. (null_file_read): Delete. (ui_file::putc): New. (null_file_fputs): Delete. (null_file_write_async_safe): Delete. (ui_file::vprintf): New. (null_file_delete): Delete. (null_file::write): New. (null_file_fseek): Delete. (null_file::puts): New. (ui_file_data): Delete. (null_file::write_async_safe): New. (gdb_flush, ui_file_isatty): Adjust. (ui_file_put, ui_file_rewind): Delete. (ui_file_write): Adjust. (ui_file_write_for_put): Delete. (ui_file_write_async_safe, ui_file_read): Adjust. (ui_file_fseek): Delete. (fputs_unfiltered): Adjust. (set_ui_file_flush, set_ui_file_isatty, set_ui_file_rewind) (set_ui_file_put, set_ui_file_write, set_ui_file_write_async_safe) (set_ui_file_read, set_ui_file_fputs, set_ui_file_fseek) (set_ui_file_data): Delete. (string_file::~string_file, string_file::write) (struct accumulated_ui_file, do_ui_file_xstrdup, ui_file_xstrdup) (do_ui_file_as_string, ui_file_as_string): Delete. (do_ui_file_obsavestring, ui_file_obsavestring): Delete. (struct mem_file): Delete. (mem_file_new): Delete. (stdio_file::stdio_file): New. (mem_file_delete): Delete. (stdio_file::stdio_file): New. (mem_fileopen): Delete. (stdio_file::~stdio_file): New. (mem_file_rewind): Delete. (stdio_file::set_stream): New. (mem_file_put): Delete. (stdio_file::open): New. (mem_file_write): Delete. (stdio_file_magic, struct stdio_file): Delete. (stdio_file_new, stdio_file_delete, stdio_file_flush): Delete. (stdio_file::flush): New. (stdio_file_read): Rename to ... (stdio_file::read): ... this. Adjust. (stdio_file_write): Rename to ... (stdio_file::write): ... this. Adjust. (stdio_file_write_async_safe): Rename to ... (stdio_file::write_async_safe) ... this. Adjust. (stdio_file_fputs): Rename to ... (stdio_file::puts) ... this. Adjust. (stdio_file_isatty): Delete. (stdio_file_fseek): Delete. (stdio_file::isatty): New. (stderr_file_write): Rename to ... (stderr_file::write) ... this. Adjust. (stderr_file_fputs): Rename to ... (stderr_file::puts) ... this. Adjust. (stderr_fileopen, stdio_fileopen, gdb_fopen): Delete. (stderr_file::stderr_file): New. (tee_file_magic): Delete. (struct tee_file): Delete. (tee_file::tee_file): New. (tee_file_new): Delete. (tee_file::~tee_file): New. (tee_file_delete): Delete. (tee_file_flush): Rename to ... (tee_file::flush): ... this. Adjust. (tee_file_write): Rename to ... (tee_file::write): ... this. Adjust. (tee_file::write_async_safe): New. (tee_file_fputs): Rename to ... (tee_file::puts): ... this. Adjust. (tee_file_isatty): Rename to ... (tee_file::isatty): ... this. Adjust. * ui-file.h (struct obstack, struct ui_file): Don't forward-declare. (ui_file_new, ui_file_flush_ftype, set_ui_file_flush) (ui_file_write_ftype) (set_ui_file_write, ui_file_fputs_ftype, set_ui_file_fputs) (ui_file_write_async_safe_ftype, set_ui_file_write_async_safe) (ui_file_read_ftype, set_ui_file_read, ui_file_isatty_ftype) (set_ui_file_isatty, ui_file_rewind_ftype, set_ui_file_rewind) (ui_file_put_method_ftype, ui_file_put_ftype, set_ui_file_put) (ui_file_delete_ftype, set_ui_file_data, ui_file_fseek_ftype) (set_ui_file_fseek): Delete. (ui_file_data, ui_file_delete, ui_file_rewind) (struct ui_file): New. (ui_file_up): New. (class null_file): New. (null_stream): Declare. (ui_file_write_for_put, ui_file_put): Delete. (ui_file_xstrdup, ui_file_as_string, ui_file_obsavestring): Delete. (ui_file_fseek, mem_fileopen, stdio_fileopen, stderr_fileopen) (gdb_fopen, tee_file_new): Delete. (struct string_file): New. (struct stdio_file): New. (stdio_file_up): New. (struct stderr_file): New. (class tee_file): New. * ui-out.c (ui_out::field_stream): Take a 'string_file &' instead of a 'ui_file *'. Adjust. * ui-out.h (class ui_out) <field_stream>: Likewise. * utils.c (do_ui_file_delete, make_cleanup_ui_file_delete) (null_stream): Delete. (error_stream): Take a 'string_file &' instead of a 'ui_file *'. Adjust. * utils.h (struct ui_file): Delete forward declaration.. (make_cleanup_ui_file_delete, null_stream): Delete declarations. (error_stream): Take a 'string_file &' instead of a 'ui_file *'. * varobj.c (varobj_value_get_print_value): Use string_file. * xtensa-tdep.c (xtensa_verify_config): Use string_file. * gdbarch.c: Regenerate.
2017-02-02 12:11:47 +01:00
buf.puts ("-source ");
buf.puts (explicit_loc->source_filename);
Explicit locations: introduce explicit locations This patch add support for explicit locations and switches many linespec locations to this new location type. This patch also converts all linespec locations entered by the user to an explicit representation internally (thus bypassing the linespec parser when resetting the breakpoint). This patch does not introduce any user-visible changes. gdb/ChangeLog: * break-catch-throw.c (re_set_exception_catchpoint): Convert linespec into explicit location. * breakpoint.c (create_overlay_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Convert linespec into explicit location. (update_static_tracepoint): Convert linespec into explicit location. * linespec.c (enum offset_relative_sign, struct line_offset): Move location.h. (struct linespec) <expression, expr_pc, source_filename> <function_name, label_name, line_offset>: Replace with ... <explicit>: ... this. <is_linespec>: New member. (PARSER_EXPLICIT): New accessor macro. (undefined_label_error): New function. (source_file_not_found_error): New function. (linespec_parse_basic): The parser result is now an explicit location. Use PARSER_EXPLICIT to access it. Use undefined_label_error. (canonicalize_linespec): Convert canonical linespec into explicit location. Move string representation of location to explicit_location_to_linespec and use it and explicit_location_to_string to save string representations of the canonical location. (create_sals_line_offset, convert_linespec_to_sals): `ls' contains an explicit location. Update all references. (convert_explicit_location_to_sals): New function. (parse_linespec): Use PARSER_EXPLICIT to access the parser result's explicit location. (linespec_state_constructor): Initialize is_linespec. Use PARSER_EXPLICIT. (linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's result. (event_location_to_sals): For linespec locations, set is_linespec. Handle explicit locations. (decode_objc): 'ls' contains an explicit location now. Update all references. (symtabs_from_filename): Use source_file_not_found_error. * location.c (struct event_location.u) <explicit>: New member. (initialize_explicit_location): New function. (initialize_event_location): Initialize explicit locations. (new_explicit_location, get_explicit_location) (get_explicit_location_const): New functions. (explicit_to_string_internal): New function; most of contents moved from canonicalize_linespec. (explicit_location_to_string): New function. (explicit_location_to_linespec): New function. (copy_event_location, delete_event_location) (event_location_to_string_const, event_location_empty_p): Handle explicit locations. * location.h (enum offset_relative_sign, struct line_offset): Move here from linespec.h. (enum event_location_type): Add EXPLICIT_LOCATION. (struct explicit_location): New structure. (explicit_location_to_string): Declare. (explicit_location_to_linespec): Declare. (new_explicit_location, get_explicit_locationp (get_explicit_location_const, initialize_explicit_location): Declare.
2015-08-12 02:09:35 +02:00
need_space = 1;
}
Mass rename `explicit' -> `explicit_loc'. BuildBot reminded me that "explicit" is a reserved keyword in C++. This patch simply renames all the (illegal) uses of "explicit". This should fix the build errors with --enable-build-with-cxx bots. gdb/ChangeLog * break-catch-throw.c (re_set_exception_catchpoint) Rename reserved C++ keyword "explicit" to "explicit_loc". * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint, update_static_tracepoint): Rename reserved C++ keyword "explicit" to "explicit_loc". * completer.c (collect_explicit_location_matches) (explicit_location_completer): Rename reserved C++ keyword "explicit" to "explicit_loc". * linespec.c (struct linespec) <explicit>: Rename to "explicit_loc". (canonicalize_linespec, create_sals_line_offset) (convert_linespec_to_sals, convert_explicit_location_to_sals) (event_location_to_sals, decode_objc): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.c (struct event_location) <explicit>: Rename to "explicit_loc". (initialize_explicit_location, new_explicit_location) (explicit_location_to_string_internal, explicit_location_to_linespec): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.h (explicit_location_to_string) (explicit_location_to_linespec, initialize_explicit_location) (new_explicit_location): Rename reserved C++ keyword "explicit" to "explicit_loc". * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Rename reserved C++ keyword "explicit" to "explicit_loc".
2015-08-13 18:48:12 +02:00
if (explicit_loc->function_name != NULL)
Explicit locations: introduce explicit locations This patch add support for explicit locations and switches many linespec locations to this new location type. This patch also converts all linespec locations entered by the user to an explicit representation internally (thus bypassing the linespec parser when resetting the breakpoint). This patch does not introduce any user-visible changes. gdb/ChangeLog: * break-catch-throw.c (re_set_exception_catchpoint): Convert linespec into explicit location. * breakpoint.c (create_overlay_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Convert linespec into explicit location. (update_static_tracepoint): Convert linespec into explicit location. * linespec.c (enum offset_relative_sign, struct line_offset): Move location.h. (struct linespec) <expression, expr_pc, source_filename> <function_name, label_name, line_offset>: Replace with ... <explicit>: ... this. <is_linespec>: New member. (PARSER_EXPLICIT): New accessor macro. (undefined_label_error): New function. (source_file_not_found_error): New function. (linespec_parse_basic): The parser result is now an explicit location. Use PARSER_EXPLICIT to access it. Use undefined_label_error. (canonicalize_linespec): Convert canonical linespec into explicit location. Move string representation of location to explicit_location_to_linespec and use it and explicit_location_to_string to save string representations of the canonical location. (create_sals_line_offset, convert_linespec_to_sals): `ls' contains an explicit location. Update all references. (convert_explicit_location_to_sals): New function. (parse_linespec): Use PARSER_EXPLICIT to access the parser result's explicit location. (linespec_state_constructor): Initialize is_linespec. Use PARSER_EXPLICIT. (linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's result. (event_location_to_sals): For linespec locations, set is_linespec. Handle explicit locations. (decode_objc): 'ls' contains an explicit location now. Update all references. (symtabs_from_filename): Use source_file_not_found_error. * location.c (struct event_location.u) <explicit>: New member. (initialize_explicit_location): New function. (initialize_event_location): Initialize explicit locations. (new_explicit_location, get_explicit_location) (get_explicit_location_const): New functions. (explicit_to_string_internal): New function; most of contents moved from canonicalize_linespec. (explicit_location_to_string): New function. (explicit_location_to_linespec): New function. (copy_event_location, delete_event_location) (event_location_to_string_const, event_location_empty_p): Handle explicit locations. * location.h (enum offset_relative_sign, struct line_offset): Move here from linespec.h. (enum event_location_type): Add EXPLICIT_LOCATION. (struct explicit_location): New structure. (explicit_location_to_string): Declare. (explicit_location_to_linespec): Declare. (new_explicit_location, get_explicit_locationp (get_explicit_location_const, initialize_explicit_location): Declare.
2015-08-12 02:09:35 +02:00
{
if (need_space)
Eliminate make_cleanup_ui_file_delete / make ui_file a class hierarchy This patch starts from the desire to eliminate make_cleanup_ui_file_delete, but then goes beyond. It makes ui_file & friends a real C++ class hierarchy, and switches temporary ui_file-like objects to stack-based allocation. - mem_fileopen -> string_file mem_fileopen is replaced with a new string_file class that is treated as a value class created on the stack. This alone eliminates most make_cleanup_ui_file_delete calls, and, simplifies code a whole lot (diffstat shows around 1k loc dropped.) string_file's internal buffer is a std::string, thus the "string" in the name. This simplifies the implementation much, compared to mem_fileopen, which managed growing its internal buffer manually. - ui_file_as_string, ui_file_strdup, ui_file_obsavestring all gone The new string_file class has a string() method that provides direct writable access to the internal std::string buffer. This replaced ui_file_as_string, which forced a copy of the same data the stream had inside. With direct access via a writable reference, we can instead move the string out of the string_stream, avoiding deep string copying. Related, ui_file_xstrdup calls are replaced with xstrdup'ping the stream's string, and ui_file_obsavestring is replaced by obstack_copy0. With all those out of the way, getting rid of the weird ui_file_put mechanism was possible. - New ui_file::printf, ui_file::puts, etc. methods These simplify / clarify client code. I considered splitting client-code changes, like these, e.g.: - stb = mem_fileopen (); - fprintf_unfiltered (stb, "%s%s%s", - _("The valid values are:\n"), - regdesc, - _("The default is \"std\".")); + string_file stb; + stb.printf ("%s%s%s", + _("The valid values are:\n"), + regdesc, + _("The default is \"std\".")); In two steps, with the first step leaving fprintf_unfiltered (etc.) calls in place, and only afterwards do a pass to change all those to call stb.printf etc.. I didn't do that split, because (when I tried), it turned out to be pointless make-work: the first pass would have to touch the fprintf_unfiltered line anyway, to replace "stb" with "&stb". - gdb_fopen replaced with stack-based objects This avoids the need for cleanups or unique_ptr's. I.e., this: struct ui_file *file = gdb_fopen (filename, "w"); if (filename == NULL) perror_with_name (filename); cleanups = make_cleanup_ui_file_delete (file); // use file. do_cleanups (cleanups); is replaced with this: stdio_file file; if (!file.open (filename, "w")) perror_with_name (filename); // use file. - odd contorsions in null_file_write / null_file_fputs around when to call to_fputs / to_write eliminated. - Global null_stream object A few places that were allocating a ui_file in order to print to "nowhere" are adjusted to instead refer to a new 'null_stream' global stream. - TUI's tui_sfileopen eliminated. TUI's ui_file much simplified The TUI's ui_file was serving a dual purpose. It supported being used as string buffer, and supported being backed by a stdio FILE. The string buffer part is gone, replaced by using of string_file. The 'FILE *' support is now much simplified, by making the TUI's ui_file inherit from stdio_file. gdb/ChangeLog: 2017-02-02 Pedro Alves <palves@redhat.com> * ada-lang.c (type_as_string): Use string_file. * ada-valprint.c (ada_print_floating): Use string_file. * ada-varobj.c (ada_varobj_scalar_image) (ada_varobj_get_value_image): Use string_file. * aix-thread.c (aix_thread_extra_thread_info): Use string_file. * arm-tdep.c (_initialize_arm_tdep): Use string_printf. * breakpoint.c (update_inserted_breakpoint_locations) (insert_breakpoint_locations, reattach_breakpoints) (print_breakpoint_location, print_one_detail_ranged_breakpoint) (print_it_watchpoint): Use string_file. (save_breakpoints): Use stdio_file. * c-exp.y (oper): Use string_file. * cli/cli-logging.c (set_logging_redirect): Use ui_file_up and tee_file. (pop_output_files): Use delete. (handle_redirections): Use stdio_file and tee_file. * cli/cli-setshow.c (do_show_command): Use string_file. * compile/compile-c-support.c (c_compute_program): Use string_file. * compile/compile-c-symbols.c (generate_vla_size): Take a 'string_file &' instead of a 'ui_file *'. (generate_c_for_for_one_variable): Take a 'string_file &' instead of a 'ui_file *'. Use string_file. (generate_c_for_variable_locations): Take a 'string_file &' instead of a 'ui_file *'. * compile/compile-internal.h (generate_c_for_for_one_variable): Take a 'string_file &' instead of a 'ui_file *'. * compile/compile-loc2c.c (push, pushf, unary, binary) (print_label, pushf_register_address, pushf_register) (do_compile_dwarf_expr_to_c): Take a 'string_file &' instead of a 'ui_file *'. Adjust. * compile/compile.c (compile_to_object): Use string_file. * compile/compile.h (compile_dwarf_expr_to_c) (compile_dwarf_bounds_to_c): Take a 'string_file &' instead of a 'ui_file *'. * cp-support.c (inspect_type): Use string_file and obstack_copy0. (replace_typedefs_qualified_name): Use string_file and obstack_copy0. * disasm.c (gdb_pretty_print_insn): Use string_file. (gdb_disassembly): Adjust reference the null_stream global. (do_ui_file_delete): Delete. (gdb_insn_length): Use null_stream. * dummy-frame.c (maintenance_print_dummy_frames): Use stdio_file. * dwarf2loc.c (dwarf2_compile_property_to_c) (locexpr_generate_c_location, loclist_generate_c_location): Take a 'string_file &' instead of a 'ui_file *'. * dwarf2loc.h (dwarf2_compile_property_to_c): Likewise. * dwarf2read.c (do_ui_file_peek_last): Delete. (dwarf2_compute_name): Use string_file. * event-top.c (gdb_setup_readline): Use stdio_file. * gdbarch.sh (verify_gdbarch): Use string_file. * gdbtypes.c (safe_parse_type): Use null_stream. * guile/scm-breakpoint.c (gdbscm_breakpoint_commands): Use string_file. * guile/scm-disasm.c (gdbscm_print_insn_from_port): Take a 'string_file *' instead of a 'ui_file *'. (gdbscm_arch_disassemble): Use string_file. * guile/scm-frame.c (frscm_print_frame_smob): Use string_file. * guile/scm-ports.c (class ioscm_file_port): Now a class that inherits from ui_file. (ioscm_file_port_delete, ioscm_file_port_rewind) (ioscm_file_port_put): Delete. (ioscm_file_port_write): Rename to ... (ioscm_file_port::write): ... this. Remove file_port_magic checks. (ioscm_file_port_new): Delete. (ioscm_with_output_to_port_worker): Use ioscm_file_port and ui_file_up. * guile/scm-type.c (tyscm_type_name): Use string_file. * guile/scm-value.c (vlscm_print_value_smob, gdbscm_value_print): Use string_file. * infcmd.c (print_return_value_1): Use string_file. * infrun.c (print_target_wait_results): Use string_file. * language.c (add_language): Use string_file. * location.c (explicit_to_string_internal): Use string_file. * main.c (captured_main_1): Use null_file. * maint.c (maintenance_print_architecture): Use stdio_file. * mi/mi-cmd-stack.c (list_arg_or_local): Use string_file. * mi/mi-common.h (struct mi_interp) <out, err, log, targ, event_channel>: Change type to mi_console_file pointer. * mi/mi-console.c (mi_console_file_fputs, mi_console_file_flush) (mi_console_file_delete): Delete. (struct mi_console_file): Delete. (mi_console_file_magic): Delete. (mi_console_file_new): Delete. (mi_console_file::mi_console_file): New. (mi_console_file_delete): Delete. (mi_console_file_fputs): Delete. (mi_console_file::write): New. (mi_console_raw_packet): Delete. (mi_console_file::flush): New. (mi_console_file_flush): Delete. (mi_console_set_raw): Rename to ... (mi_console_file::set_raw): ... this. * mi/mi-console.h (class mi_console_file): New class. (mi_console_file_new, mi_console_set_raw): Delete. * mi/mi-interp.c (mi_interpreter_init): Use mi_console_file. (mi_set_logging): Use delete and tee_file. Adjust. * mi/mi-main.c (output_register): Use string_file. (mi_cmd_data_evaluate_expression): Use string_file. (mi_cmd_data_read_memory): Use string_file. (mi_cmd_execute, print_variable_or_computed): Use string_file. * mi/mi-out.c (mi_ui_out::main_stream): New. (mi_ui_out::rewind): Use main_stream and string_file. (mi_ui_out::put): Use main_stream and string_file. (mi_ui_out::mi_ui_out): Remove 'stream' parameter. Allocate a 'string_file' instead. (mi_out_new): Don't allocate a mem_fileopen stream here. * mi/mi-out.h (mi_ui_out::mi_ui_out): Remove 'stream' parameter. (mi_ui_out::main_stream): Declare method. * printcmd.c (eval_command): Use string_file. * psymtab.c (maintenance_print_psymbols): Use stdio_file. * python/py-arch.c (archpy_disassemble): Use string_file. * python/py-breakpoint.c (bppy_get_commands): Use string_file. * python/py-frame.c (frapy_str): Use string_file. * python/py-framefilter.c (py_print_type, py_print_single_arg): Use string_file. * python/py-type.c (typy_str): Use string_file. * python/py-unwind.c (unwind_infopy_str): Use string_file. * python/py-value.c (valpy_str): Use string_file. * record-btrace.c (btrace_insn_history): Use string_file. * regcache.c (regcache_print): Use stdio_file. * reggroups.c (maintenance_print_reggroups): Use stdio_file. * remote.c (escape_buffer): Use string_file. * rust-lang.c (rust_get_disr_info): Use string_file. * serial.c (serial_open_ops_1): Use stdio_file. (do_serial_close): Use delete. * stack.c (print_frame_arg): Use string_file. (print_frame_args): Remove local mem_fileopen stream, not used. (print_frame): Use string_file. * symmisc.c (maintenance_print_symbols): Use stdio_file. * symtab.h (struct symbol_computed_ops) <generate_c_location>: Take a 'string_file *' instead of a 'ui_file *'. * top.c (new_ui): Use stdio_file and stderr_file. (free_ui): Use delete. (execute_command_to_string): Use string_file. (quit_confirm): Use string_file. * tracepoint.c (collection_list::append_exp): Use string_file. * tui/tui-disasm.c (tui_disassemble): Use string_file. * tui/tui-file.c: Don't include "ui-file.h". (enum streamtype, struct tui_stream): Delete. (tui_file_new, tui_file_delete, tui_fileopen, tui_sfileopen) (tui_file_isatty, tui_file_rewind, tui_file_put): Delete. (tui_file::tui_file): New method. (tui_file_fputs): Delete. (tui_file_get_strbuf): Delete. (tui_file::puts): New method. (tui_file_adjust_strbuf): Delete. (tui_file_flush): Delete. (tui_file::flush): New method. * tui/tui-file.h: Tweak intro comment. Include ui-file.h. (tui_fileopen, tui_sfileopen, tui_file_get_strbuf) (tui_file_adjust_strbuf): Delete declarations. (class tui_file): New class. * tui/tui-io.c (tui_initialize_io): Use tui_file. * tui/tui-regs.c (tui_restore_gdbout): Use delete. (tui_register_format): Use string_stream. * tui/tui-stack.c (tui_make_status_line): Use string_file. (tui_get_function_from_frame): Use string_file. * typeprint.c (type_to_string): Use string_file. * ui-file.c (struct ui_file, ui_file_magic, ui_file_new): Delete. (null_stream): New global. (ui_file_delete): Delete. (ui_file::ui_file): New. (null_file_isatty): Delete. (ui_file::~ui_file): New. (null_file_rewind): Delete. (ui_file::printf): New. (null_file_put): Delete. (null_file_flush): Delete. (ui_file::putstr): New. (null_file_write): Delete. (ui_file::putstrn): New. (null_file_read): Delete. (ui_file::putc): New. (null_file_fputs): Delete. (null_file_write_async_safe): Delete. (ui_file::vprintf): New. (null_file_delete): Delete. (null_file::write): New. (null_file_fseek): Delete. (null_file::puts): New. (ui_file_data): Delete. (null_file::write_async_safe): New. (gdb_flush, ui_file_isatty): Adjust. (ui_file_put, ui_file_rewind): Delete. (ui_file_write): Adjust. (ui_file_write_for_put): Delete. (ui_file_write_async_safe, ui_file_read): Adjust. (ui_file_fseek): Delete. (fputs_unfiltered): Adjust. (set_ui_file_flush, set_ui_file_isatty, set_ui_file_rewind) (set_ui_file_put, set_ui_file_write, set_ui_file_write_async_safe) (set_ui_file_read, set_ui_file_fputs, set_ui_file_fseek) (set_ui_file_data): Delete. (string_file::~string_file, string_file::write) (struct accumulated_ui_file, do_ui_file_xstrdup, ui_file_xstrdup) (do_ui_file_as_string, ui_file_as_string): Delete. (do_ui_file_obsavestring, ui_file_obsavestring): Delete. (struct mem_file): Delete. (mem_file_new): Delete. (stdio_file::stdio_file): New. (mem_file_delete): Delete. (stdio_file::stdio_file): New. (mem_fileopen): Delete. (stdio_file::~stdio_file): New. (mem_file_rewind): Delete. (stdio_file::set_stream): New. (mem_file_put): Delete. (stdio_file::open): New. (mem_file_write): Delete. (stdio_file_magic, struct stdio_file): Delete. (stdio_file_new, stdio_file_delete, stdio_file_flush): Delete. (stdio_file::flush): New. (stdio_file_read): Rename to ... (stdio_file::read): ... this. Adjust. (stdio_file_write): Rename to ... (stdio_file::write): ... this. Adjust. (stdio_file_write_async_safe): Rename to ... (stdio_file::write_async_safe) ... this. Adjust. (stdio_file_fputs): Rename to ... (stdio_file::puts) ... this. Adjust. (stdio_file_isatty): Delete. (stdio_file_fseek): Delete. (stdio_file::isatty): New. (stderr_file_write): Rename to ... (stderr_file::write) ... this. Adjust. (stderr_file_fputs): Rename to ... (stderr_file::puts) ... this. Adjust. (stderr_fileopen, stdio_fileopen, gdb_fopen): Delete. (stderr_file::stderr_file): New. (tee_file_magic): Delete. (struct tee_file): Delete. (tee_file::tee_file): New. (tee_file_new): Delete. (tee_file::~tee_file): New. (tee_file_delete): Delete. (tee_file_flush): Rename to ... (tee_file::flush): ... this. Adjust. (tee_file_write): Rename to ... (tee_file::write): ... this. Adjust. (tee_file::write_async_safe): New. (tee_file_fputs): Rename to ... (tee_file::puts): ... this. Adjust. (tee_file_isatty): Rename to ... (tee_file::isatty): ... this. Adjust. * ui-file.h (struct obstack, struct ui_file): Don't forward-declare. (ui_file_new, ui_file_flush_ftype, set_ui_file_flush) (ui_file_write_ftype) (set_ui_file_write, ui_file_fputs_ftype, set_ui_file_fputs) (ui_file_write_async_safe_ftype, set_ui_file_write_async_safe) (ui_file_read_ftype, set_ui_file_read, ui_file_isatty_ftype) (set_ui_file_isatty, ui_file_rewind_ftype, set_ui_file_rewind) (ui_file_put_method_ftype, ui_file_put_ftype, set_ui_file_put) (ui_file_delete_ftype, set_ui_file_data, ui_file_fseek_ftype) (set_ui_file_fseek): Delete. (ui_file_data, ui_file_delete, ui_file_rewind) (struct ui_file): New. (ui_file_up): New. (class null_file): New. (null_stream): Declare. (ui_file_write_for_put, ui_file_put): Delete. (ui_file_xstrdup, ui_file_as_string, ui_file_obsavestring): Delete. (ui_file_fseek, mem_fileopen, stdio_fileopen, stderr_fileopen) (gdb_fopen, tee_file_new): Delete. (struct string_file): New. (struct stdio_file): New. (stdio_file_up): New. (struct stderr_file): New. (class tee_file): New. * ui-out.c (ui_out::field_stream): Take a 'string_file &' instead of a 'ui_file *'. Adjust. * ui-out.h (class ui_out) <field_stream>: Likewise. * utils.c (do_ui_file_delete, make_cleanup_ui_file_delete) (null_stream): Delete. (error_stream): Take a 'string_file &' instead of a 'ui_file *'. Adjust. * utils.h (struct ui_file): Delete forward declaration.. (make_cleanup_ui_file_delete, null_stream): Delete declarations. (error_stream): Take a 'string_file &' instead of a 'ui_file *'. * varobj.c (varobj_value_get_print_value): Use string_file. * xtensa-tdep.c (xtensa_verify_config): Use string_file. * gdbarch.c: Regenerate.
2017-02-02 12:11:47 +01:00
buf.putc (space);
Explicit locations: introduce explicit locations This patch add support for explicit locations and switches many linespec locations to this new location type. This patch also converts all linespec locations entered by the user to an explicit representation internally (thus bypassing the linespec parser when resetting the breakpoint). This patch does not introduce any user-visible changes. gdb/ChangeLog: * break-catch-throw.c (re_set_exception_catchpoint): Convert linespec into explicit location. * breakpoint.c (create_overlay_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Convert linespec into explicit location. (update_static_tracepoint): Convert linespec into explicit location. * linespec.c (enum offset_relative_sign, struct line_offset): Move location.h. (struct linespec) <expression, expr_pc, source_filename> <function_name, label_name, line_offset>: Replace with ... <explicit>: ... this. <is_linespec>: New member. (PARSER_EXPLICIT): New accessor macro. (undefined_label_error): New function. (source_file_not_found_error): New function. (linespec_parse_basic): The parser result is now an explicit location. Use PARSER_EXPLICIT to access it. Use undefined_label_error. (canonicalize_linespec): Convert canonical linespec into explicit location. Move string representation of location to explicit_location_to_linespec and use it and explicit_location_to_string to save string representations of the canonical location. (create_sals_line_offset, convert_linespec_to_sals): `ls' contains an explicit location. Update all references. (convert_explicit_location_to_sals): New function. (parse_linespec): Use PARSER_EXPLICIT to access the parser result's explicit location. (linespec_state_constructor): Initialize is_linespec. Use PARSER_EXPLICIT. (linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's result. (event_location_to_sals): For linespec locations, set is_linespec. Handle explicit locations. (decode_objc): 'ls' contains an explicit location now. Update all references. (symtabs_from_filename): Use source_file_not_found_error. * location.c (struct event_location.u) <explicit>: New member. (initialize_explicit_location): New function. (initialize_event_location): Initialize explicit locations. (new_explicit_location, get_explicit_location) (get_explicit_location_const): New functions. (explicit_to_string_internal): New function; most of contents moved from canonicalize_linespec. (explicit_location_to_string): New function. (explicit_location_to_linespec): New function. (copy_event_location, delete_event_location) (event_location_to_string_const, event_location_empty_p): Handle explicit locations. * location.h (enum offset_relative_sign, struct line_offset): Move here from linespec.h. (enum event_location_type): Add EXPLICIT_LOCATION. (struct explicit_location): New structure. (explicit_location_to_string): Declare. (explicit_location_to_linespec): Declare. (new_explicit_location, get_explicit_locationp (get_explicit_location_const, initialize_explicit_location): Declare.
2015-08-12 02:09:35 +02:00
if (!as_linespec)
Eliminate make_cleanup_ui_file_delete / make ui_file a class hierarchy This patch starts from the desire to eliminate make_cleanup_ui_file_delete, but then goes beyond. It makes ui_file & friends a real C++ class hierarchy, and switches temporary ui_file-like objects to stack-based allocation. - mem_fileopen -> string_file mem_fileopen is replaced with a new string_file class that is treated as a value class created on the stack. This alone eliminates most make_cleanup_ui_file_delete calls, and, simplifies code a whole lot (diffstat shows around 1k loc dropped.) string_file's internal buffer is a std::string, thus the "string" in the name. This simplifies the implementation much, compared to mem_fileopen, which managed growing its internal buffer manually. - ui_file_as_string, ui_file_strdup, ui_file_obsavestring all gone The new string_file class has a string() method that provides direct writable access to the internal std::string buffer. This replaced ui_file_as_string, which forced a copy of the same data the stream had inside. With direct access via a writable reference, we can instead move the string out of the string_stream, avoiding deep string copying. Related, ui_file_xstrdup calls are replaced with xstrdup'ping the stream's string, and ui_file_obsavestring is replaced by obstack_copy0. With all those out of the way, getting rid of the weird ui_file_put mechanism was possible. - New ui_file::printf, ui_file::puts, etc. methods These simplify / clarify client code. I considered splitting client-code changes, like these, e.g.: - stb = mem_fileopen (); - fprintf_unfiltered (stb, "%s%s%s", - _("The valid values are:\n"), - regdesc, - _("The default is \"std\".")); + string_file stb; + stb.printf ("%s%s%s", + _("The valid values are:\n"), + regdesc, + _("The default is \"std\".")); In two steps, with the first step leaving fprintf_unfiltered (etc.) calls in place, and only afterwards do a pass to change all those to call stb.printf etc.. I didn't do that split, because (when I tried), it turned out to be pointless make-work: the first pass would have to touch the fprintf_unfiltered line anyway, to replace "stb" with "&stb". - gdb_fopen replaced with stack-based objects This avoids the need for cleanups or unique_ptr's. I.e., this: struct ui_file *file = gdb_fopen (filename, "w"); if (filename == NULL) perror_with_name (filename); cleanups = make_cleanup_ui_file_delete (file); // use file. do_cleanups (cleanups); is replaced with this: stdio_file file; if (!file.open (filename, "w")) perror_with_name (filename); // use file. - odd contorsions in null_file_write / null_file_fputs around when to call to_fputs / to_write eliminated. - Global null_stream object A few places that were allocating a ui_file in order to print to "nowhere" are adjusted to instead refer to a new 'null_stream' global stream. - TUI's tui_sfileopen eliminated. TUI's ui_file much simplified The TUI's ui_file was serving a dual purpose. It supported being used as string buffer, and supported being backed by a stdio FILE. The string buffer part is gone, replaced by using of string_file. The 'FILE *' support is now much simplified, by making the TUI's ui_file inherit from stdio_file. gdb/ChangeLog: 2017-02-02 Pedro Alves <palves@redhat.com> * ada-lang.c (type_as_string): Use string_file. * ada-valprint.c (ada_print_floating): Use string_file. * ada-varobj.c (ada_varobj_scalar_image) (ada_varobj_get_value_image): Use string_file. * aix-thread.c (aix_thread_extra_thread_info): Use string_file. * arm-tdep.c (_initialize_arm_tdep): Use string_printf. * breakpoint.c (update_inserted_breakpoint_locations) (insert_breakpoint_locations, reattach_breakpoints) (print_breakpoint_location, print_one_detail_ranged_breakpoint) (print_it_watchpoint): Use string_file. (save_breakpoints): Use stdio_file. * c-exp.y (oper): Use string_file. * cli/cli-logging.c (set_logging_redirect): Use ui_file_up and tee_file. (pop_output_files): Use delete. (handle_redirections): Use stdio_file and tee_file. * cli/cli-setshow.c (do_show_command): Use string_file. * compile/compile-c-support.c (c_compute_program): Use string_file. * compile/compile-c-symbols.c (generate_vla_size): Take a 'string_file &' instead of a 'ui_file *'. (generate_c_for_for_one_variable): Take a 'string_file &' instead of a 'ui_file *'. Use string_file. (generate_c_for_variable_locations): Take a 'string_file &' instead of a 'ui_file *'. * compile/compile-internal.h (generate_c_for_for_one_variable): Take a 'string_file &' instead of a 'ui_file *'. * compile/compile-loc2c.c (push, pushf, unary, binary) (print_label, pushf_register_address, pushf_register) (do_compile_dwarf_expr_to_c): Take a 'string_file &' instead of a 'ui_file *'. Adjust. * compile/compile.c (compile_to_object): Use string_file. * compile/compile.h (compile_dwarf_expr_to_c) (compile_dwarf_bounds_to_c): Take a 'string_file &' instead of a 'ui_file *'. * cp-support.c (inspect_type): Use string_file and obstack_copy0. (replace_typedefs_qualified_name): Use string_file and obstack_copy0. * disasm.c (gdb_pretty_print_insn): Use string_file. (gdb_disassembly): Adjust reference the null_stream global. (do_ui_file_delete): Delete. (gdb_insn_length): Use null_stream. * dummy-frame.c (maintenance_print_dummy_frames): Use stdio_file. * dwarf2loc.c (dwarf2_compile_property_to_c) (locexpr_generate_c_location, loclist_generate_c_location): Take a 'string_file &' instead of a 'ui_file *'. * dwarf2loc.h (dwarf2_compile_property_to_c): Likewise. * dwarf2read.c (do_ui_file_peek_last): Delete. (dwarf2_compute_name): Use string_file. * event-top.c (gdb_setup_readline): Use stdio_file. * gdbarch.sh (verify_gdbarch): Use string_file. * gdbtypes.c (safe_parse_type): Use null_stream. * guile/scm-breakpoint.c (gdbscm_breakpoint_commands): Use string_file. * guile/scm-disasm.c (gdbscm_print_insn_from_port): Take a 'string_file *' instead of a 'ui_file *'. (gdbscm_arch_disassemble): Use string_file. * guile/scm-frame.c (frscm_print_frame_smob): Use string_file. * guile/scm-ports.c (class ioscm_file_port): Now a class that inherits from ui_file. (ioscm_file_port_delete, ioscm_file_port_rewind) (ioscm_file_port_put): Delete. (ioscm_file_port_write): Rename to ... (ioscm_file_port::write): ... this. Remove file_port_magic checks. (ioscm_file_port_new): Delete. (ioscm_with_output_to_port_worker): Use ioscm_file_port and ui_file_up. * guile/scm-type.c (tyscm_type_name): Use string_file. * guile/scm-value.c (vlscm_print_value_smob, gdbscm_value_print): Use string_file. * infcmd.c (print_return_value_1): Use string_file. * infrun.c (print_target_wait_results): Use string_file. * language.c (add_language): Use string_file. * location.c (explicit_to_string_internal): Use string_file. * main.c (captured_main_1): Use null_file. * maint.c (maintenance_print_architecture): Use stdio_file. * mi/mi-cmd-stack.c (list_arg_or_local): Use string_file. * mi/mi-common.h (struct mi_interp) <out, err, log, targ, event_channel>: Change type to mi_console_file pointer. * mi/mi-console.c (mi_console_file_fputs, mi_console_file_flush) (mi_console_file_delete): Delete. (struct mi_console_file): Delete. (mi_console_file_magic): Delete. (mi_console_file_new): Delete. (mi_console_file::mi_console_file): New. (mi_console_file_delete): Delete. (mi_console_file_fputs): Delete. (mi_console_file::write): New. (mi_console_raw_packet): Delete. (mi_console_file::flush): New. (mi_console_file_flush): Delete. (mi_console_set_raw): Rename to ... (mi_console_file::set_raw): ... this. * mi/mi-console.h (class mi_console_file): New class. (mi_console_file_new, mi_console_set_raw): Delete. * mi/mi-interp.c (mi_interpreter_init): Use mi_console_file. (mi_set_logging): Use delete and tee_file. Adjust. * mi/mi-main.c (output_register): Use string_file. (mi_cmd_data_evaluate_expression): Use string_file. (mi_cmd_data_read_memory): Use string_file. (mi_cmd_execute, print_variable_or_computed): Use string_file. * mi/mi-out.c (mi_ui_out::main_stream): New. (mi_ui_out::rewind): Use main_stream and string_file. (mi_ui_out::put): Use main_stream and string_file. (mi_ui_out::mi_ui_out): Remove 'stream' parameter. Allocate a 'string_file' instead. (mi_out_new): Don't allocate a mem_fileopen stream here. * mi/mi-out.h (mi_ui_out::mi_ui_out): Remove 'stream' parameter. (mi_ui_out::main_stream): Declare method. * printcmd.c (eval_command): Use string_file. * psymtab.c (maintenance_print_psymbols): Use stdio_file. * python/py-arch.c (archpy_disassemble): Use string_file. * python/py-breakpoint.c (bppy_get_commands): Use string_file. * python/py-frame.c (frapy_str): Use string_file. * python/py-framefilter.c (py_print_type, py_print_single_arg): Use string_file. * python/py-type.c (typy_str): Use string_file. * python/py-unwind.c (unwind_infopy_str): Use string_file. * python/py-value.c (valpy_str): Use string_file. * record-btrace.c (btrace_insn_history): Use string_file. * regcache.c (regcache_print): Use stdio_file. * reggroups.c (maintenance_print_reggroups): Use stdio_file. * remote.c (escape_buffer): Use string_file. * rust-lang.c (rust_get_disr_info): Use string_file. * serial.c (serial_open_ops_1): Use stdio_file. (do_serial_close): Use delete. * stack.c (print_frame_arg): Use string_file. (print_frame_args): Remove local mem_fileopen stream, not used. (print_frame): Use string_file. * symmisc.c (maintenance_print_symbols): Use stdio_file. * symtab.h (struct symbol_computed_ops) <generate_c_location>: Take a 'string_file *' instead of a 'ui_file *'. * top.c (new_ui): Use stdio_file and stderr_file. (free_ui): Use delete. (execute_command_to_string): Use string_file. (quit_confirm): Use string_file. * tracepoint.c (collection_list::append_exp): Use string_file. * tui/tui-disasm.c (tui_disassemble): Use string_file. * tui/tui-file.c: Don't include "ui-file.h". (enum streamtype, struct tui_stream): Delete. (tui_file_new, tui_file_delete, tui_fileopen, tui_sfileopen) (tui_file_isatty, tui_file_rewind, tui_file_put): Delete. (tui_file::tui_file): New method. (tui_file_fputs): Delete. (tui_file_get_strbuf): Delete. (tui_file::puts): New method. (tui_file_adjust_strbuf): Delete. (tui_file_flush): Delete. (tui_file::flush): New method. * tui/tui-file.h: Tweak intro comment. Include ui-file.h. (tui_fileopen, tui_sfileopen, tui_file_get_strbuf) (tui_file_adjust_strbuf): Delete declarations. (class tui_file): New class. * tui/tui-io.c (tui_initialize_io): Use tui_file. * tui/tui-regs.c (tui_restore_gdbout): Use delete. (tui_register_format): Use string_stream. * tui/tui-stack.c (tui_make_status_line): Use string_file. (tui_get_function_from_frame): Use string_file. * typeprint.c (type_to_string): Use string_file. * ui-file.c (struct ui_file, ui_file_magic, ui_file_new): Delete. (null_stream): New global. (ui_file_delete): Delete. (ui_file::ui_file): New. (null_file_isatty): Delete. (ui_file::~ui_file): New. (null_file_rewind): Delete. (ui_file::printf): New. (null_file_put): Delete. (null_file_flush): Delete. (ui_file::putstr): New. (null_file_write): Delete. (ui_file::putstrn): New. (null_file_read): Delete. (ui_file::putc): New. (null_file_fputs): Delete. (null_file_write_async_safe): Delete. (ui_file::vprintf): New. (null_file_delete): Delete. (null_file::write): New. (null_file_fseek): Delete. (null_file::puts): New. (ui_file_data): Delete. (null_file::write_async_safe): New. (gdb_flush, ui_file_isatty): Adjust. (ui_file_put, ui_file_rewind): Delete. (ui_file_write): Adjust. (ui_file_write_for_put): Delete. (ui_file_write_async_safe, ui_file_read): Adjust. (ui_file_fseek): Delete. (fputs_unfiltered): Adjust. (set_ui_file_flush, set_ui_file_isatty, set_ui_file_rewind) (set_ui_file_put, set_ui_file_write, set_ui_file_write_async_safe) (set_ui_file_read, set_ui_file_fputs, set_ui_file_fseek) (set_ui_file_data): Delete. (string_file::~string_file, string_file::write) (struct accumulated_ui_file, do_ui_file_xstrdup, ui_file_xstrdup) (do_ui_file_as_string, ui_file_as_string): Delete. (do_ui_file_obsavestring, ui_file_obsavestring): Delete. (struct mem_file): Delete. (mem_file_new): Delete. (stdio_file::stdio_file): New. (mem_file_delete): Delete. (stdio_file::stdio_file): New. (mem_fileopen): Delete. (stdio_file::~stdio_file): New. (mem_file_rewind): Delete. (stdio_file::set_stream): New. (mem_file_put): Delete. (stdio_file::open): New. (mem_file_write): Delete. (stdio_file_magic, struct stdio_file): Delete. (stdio_file_new, stdio_file_delete, stdio_file_flush): Delete. (stdio_file::flush): New. (stdio_file_read): Rename to ... (stdio_file::read): ... this. Adjust. (stdio_file_write): Rename to ... (stdio_file::write): ... this. Adjust. (stdio_file_write_async_safe): Rename to ... (stdio_file::write_async_safe) ... this. Adjust. (stdio_file_fputs): Rename to ... (stdio_file::puts) ... this. Adjust. (stdio_file_isatty): Delete. (stdio_file_fseek): Delete. (stdio_file::isatty): New. (stderr_file_write): Rename to ... (stderr_file::write) ... this. Adjust. (stderr_file_fputs): Rename to ... (stderr_file::puts) ... this. Adjust. (stderr_fileopen, stdio_fileopen, gdb_fopen): Delete. (stderr_file::stderr_file): New. (tee_file_magic): Delete. (struct tee_file): Delete. (tee_file::tee_file): New. (tee_file_new): Delete. (tee_file::~tee_file): New. (tee_file_delete): Delete. (tee_file_flush): Rename to ... (tee_file::flush): ... this. Adjust. (tee_file_write): Rename to ... (tee_file::write): ... this. Adjust. (tee_file::write_async_safe): New. (tee_file_fputs): Rename to ... (tee_file::puts): ... this. Adjust. (tee_file_isatty): Rename to ... (tee_file::isatty): ... this. Adjust. * ui-file.h (struct obstack, struct ui_file): Don't forward-declare. (ui_file_new, ui_file_flush_ftype, set_ui_file_flush) (ui_file_write_ftype) (set_ui_file_write, ui_file_fputs_ftype, set_ui_file_fputs) (ui_file_write_async_safe_ftype, set_ui_file_write_async_safe) (ui_file_read_ftype, set_ui_file_read, ui_file_isatty_ftype) (set_ui_file_isatty, ui_file_rewind_ftype, set_ui_file_rewind) (ui_file_put_method_ftype, ui_file_put_ftype, set_ui_file_put) (ui_file_delete_ftype, set_ui_file_data, ui_file_fseek_ftype) (set_ui_file_fseek): Delete. (ui_file_data, ui_file_delete, ui_file_rewind) (struct ui_file): New. (ui_file_up): New. (class null_file): New. (null_stream): Declare. (ui_file_write_for_put, ui_file_put): Delete. (ui_file_xstrdup, ui_file_as_string, ui_file_obsavestring): Delete. (ui_file_fseek, mem_fileopen, stdio_fileopen, stderr_fileopen) (gdb_fopen, tee_file_new): Delete. (struct string_file): New. (struct stdio_file): New. (stdio_file_up): New. (struct stderr_file): New. (class tee_file): New. * ui-out.c (ui_out::field_stream): Take a 'string_file &' instead of a 'ui_file *'. Adjust. * ui-out.h (class ui_out) <field_stream>: Likewise. * utils.c (do_ui_file_delete, make_cleanup_ui_file_delete) (null_stream): Delete. (error_stream): Take a 'string_file &' instead of a 'ui_file *'. Adjust. * utils.h (struct ui_file): Delete forward declaration.. (make_cleanup_ui_file_delete, null_stream): Delete declarations. (error_stream): Take a 'string_file &' instead of a 'ui_file *'. * varobj.c (varobj_value_get_print_value): Use string_file. * xtensa-tdep.c (xtensa_verify_config): Use string_file. * gdbarch.c: Regenerate.
2017-02-02 12:11:47 +01:00
buf.puts ("-function ");
buf.puts (explicit_loc->function_name);
Explicit locations: introduce explicit locations This patch add support for explicit locations and switches many linespec locations to this new location type. This patch also converts all linespec locations entered by the user to an explicit representation internally (thus bypassing the linespec parser when resetting the breakpoint). This patch does not introduce any user-visible changes. gdb/ChangeLog: * break-catch-throw.c (re_set_exception_catchpoint): Convert linespec into explicit location. * breakpoint.c (create_overlay_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Convert linespec into explicit location. (update_static_tracepoint): Convert linespec into explicit location. * linespec.c (enum offset_relative_sign, struct line_offset): Move location.h. (struct linespec) <expression, expr_pc, source_filename> <function_name, label_name, line_offset>: Replace with ... <explicit>: ... this. <is_linespec>: New member. (PARSER_EXPLICIT): New accessor macro. (undefined_label_error): New function. (source_file_not_found_error): New function. (linespec_parse_basic): The parser result is now an explicit location. Use PARSER_EXPLICIT to access it. Use undefined_label_error. (canonicalize_linespec): Convert canonical linespec into explicit location. Move string representation of location to explicit_location_to_linespec and use it and explicit_location_to_string to save string representations of the canonical location. (create_sals_line_offset, convert_linespec_to_sals): `ls' contains an explicit location. Update all references. (convert_explicit_location_to_sals): New function. (parse_linespec): Use PARSER_EXPLICIT to access the parser result's explicit location. (linespec_state_constructor): Initialize is_linespec. Use PARSER_EXPLICIT. (linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's result. (event_location_to_sals): For linespec locations, set is_linespec. Handle explicit locations. (decode_objc): 'ls' contains an explicit location now. Update all references. (symtabs_from_filename): Use source_file_not_found_error. * location.c (struct event_location.u) <explicit>: New member. (initialize_explicit_location): New function. (initialize_event_location): Initialize explicit locations. (new_explicit_location, get_explicit_location) (get_explicit_location_const): New functions. (explicit_to_string_internal): New function; most of contents moved from canonicalize_linespec. (explicit_location_to_string): New function. (explicit_location_to_linespec): New function. (copy_event_location, delete_event_location) (event_location_to_string_const, event_location_empty_p): Handle explicit locations. * location.h (enum offset_relative_sign, struct line_offset): Move here from linespec.h. (enum event_location_type): Add EXPLICIT_LOCATION. (struct explicit_location): New structure. (explicit_location_to_string): Declare. (explicit_location_to_linespec): Declare. (new_explicit_location, get_explicit_locationp (get_explicit_location_const, initialize_explicit_location): Declare.
2015-08-12 02:09:35 +02:00
need_space = 1;
}
Mass rename `explicit' -> `explicit_loc'. BuildBot reminded me that "explicit" is a reserved keyword in C++. This patch simply renames all the (illegal) uses of "explicit". This should fix the build errors with --enable-build-with-cxx bots. gdb/ChangeLog * break-catch-throw.c (re_set_exception_catchpoint) Rename reserved C++ keyword "explicit" to "explicit_loc". * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint, update_static_tracepoint): Rename reserved C++ keyword "explicit" to "explicit_loc". * completer.c (collect_explicit_location_matches) (explicit_location_completer): Rename reserved C++ keyword "explicit" to "explicit_loc". * linespec.c (struct linespec) <explicit>: Rename to "explicit_loc". (canonicalize_linespec, create_sals_line_offset) (convert_linespec_to_sals, convert_explicit_location_to_sals) (event_location_to_sals, decode_objc): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.c (struct event_location) <explicit>: Rename to "explicit_loc". (initialize_explicit_location, new_explicit_location) (explicit_location_to_string_internal, explicit_location_to_linespec): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.h (explicit_location_to_string) (explicit_location_to_linespec, initialize_explicit_location) (new_explicit_location): Rename reserved C++ keyword "explicit" to "explicit_loc". * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Rename reserved C++ keyword "explicit" to "explicit_loc".
2015-08-13 18:48:12 +02:00
if (explicit_loc->label_name != NULL)
Explicit locations: introduce explicit locations This patch add support for explicit locations and switches many linespec locations to this new location type. This patch also converts all linespec locations entered by the user to an explicit representation internally (thus bypassing the linespec parser when resetting the breakpoint). This patch does not introduce any user-visible changes. gdb/ChangeLog: * break-catch-throw.c (re_set_exception_catchpoint): Convert linespec into explicit location. * breakpoint.c (create_overlay_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Convert linespec into explicit location. (update_static_tracepoint): Convert linespec into explicit location. * linespec.c (enum offset_relative_sign, struct line_offset): Move location.h. (struct linespec) <expression, expr_pc, source_filename> <function_name, label_name, line_offset>: Replace with ... <explicit>: ... this. <is_linespec>: New member. (PARSER_EXPLICIT): New accessor macro. (undefined_label_error): New function. (source_file_not_found_error): New function. (linespec_parse_basic): The parser result is now an explicit location. Use PARSER_EXPLICIT to access it. Use undefined_label_error. (canonicalize_linespec): Convert canonical linespec into explicit location. Move string representation of location to explicit_location_to_linespec and use it and explicit_location_to_string to save string representations of the canonical location. (create_sals_line_offset, convert_linespec_to_sals): `ls' contains an explicit location. Update all references. (convert_explicit_location_to_sals): New function. (parse_linespec): Use PARSER_EXPLICIT to access the parser result's explicit location. (linespec_state_constructor): Initialize is_linespec. Use PARSER_EXPLICIT. (linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's result. (event_location_to_sals): For linespec locations, set is_linespec. Handle explicit locations. (decode_objc): 'ls' contains an explicit location now. Update all references. (symtabs_from_filename): Use source_file_not_found_error. * location.c (struct event_location.u) <explicit>: New member. (initialize_explicit_location): New function. (initialize_event_location): Initialize explicit locations. (new_explicit_location, get_explicit_location) (get_explicit_location_const): New functions. (explicit_to_string_internal): New function; most of contents moved from canonicalize_linespec. (explicit_location_to_string): New function. (explicit_location_to_linespec): New function. (copy_event_location, delete_event_location) (event_location_to_string_const, event_location_empty_p): Handle explicit locations. * location.h (enum offset_relative_sign, struct line_offset): Move here from linespec.h. (enum event_location_type): Add EXPLICIT_LOCATION. (struct explicit_location): New structure. (explicit_location_to_string): Declare. (explicit_location_to_linespec): Declare. (new_explicit_location, get_explicit_locationp (get_explicit_location_const, initialize_explicit_location): Declare.
2015-08-12 02:09:35 +02:00
{
if (need_space)
Eliminate make_cleanup_ui_file_delete / make ui_file a class hierarchy This patch starts from the desire to eliminate make_cleanup_ui_file_delete, but then goes beyond. It makes ui_file & friends a real C++ class hierarchy, and switches temporary ui_file-like objects to stack-based allocation. - mem_fileopen -> string_file mem_fileopen is replaced with a new string_file class that is treated as a value class created on the stack. This alone eliminates most make_cleanup_ui_file_delete calls, and, simplifies code a whole lot (diffstat shows around 1k loc dropped.) string_file's internal buffer is a std::string, thus the "string" in the name. This simplifies the implementation much, compared to mem_fileopen, which managed growing its internal buffer manually. - ui_file_as_string, ui_file_strdup, ui_file_obsavestring all gone The new string_file class has a string() method that provides direct writable access to the internal std::string buffer. This replaced ui_file_as_string, which forced a copy of the same data the stream had inside. With direct access via a writable reference, we can instead move the string out of the string_stream, avoiding deep string copying. Related, ui_file_xstrdup calls are replaced with xstrdup'ping the stream's string, and ui_file_obsavestring is replaced by obstack_copy0. With all those out of the way, getting rid of the weird ui_file_put mechanism was possible. - New ui_file::printf, ui_file::puts, etc. methods These simplify / clarify client code. I considered splitting client-code changes, like these, e.g.: - stb = mem_fileopen (); - fprintf_unfiltered (stb, "%s%s%s", - _("The valid values are:\n"), - regdesc, - _("The default is \"std\".")); + string_file stb; + stb.printf ("%s%s%s", + _("The valid values are:\n"), + regdesc, + _("The default is \"std\".")); In two steps, with the first step leaving fprintf_unfiltered (etc.) calls in place, and only afterwards do a pass to change all those to call stb.printf etc.. I didn't do that split, because (when I tried), it turned out to be pointless make-work: the first pass would have to touch the fprintf_unfiltered line anyway, to replace "stb" with "&stb". - gdb_fopen replaced with stack-based objects This avoids the need for cleanups or unique_ptr's. I.e., this: struct ui_file *file = gdb_fopen (filename, "w"); if (filename == NULL) perror_with_name (filename); cleanups = make_cleanup_ui_file_delete (file); // use file. do_cleanups (cleanups); is replaced with this: stdio_file file; if (!file.open (filename, "w")) perror_with_name (filename); // use file. - odd contorsions in null_file_write / null_file_fputs around when to call to_fputs / to_write eliminated. - Global null_stream object A few places that were allocating a ui_file in order to print to "nowhere" are adjusted to instead refer to a new 'null_stream' global stream. - TUI's tui_sfileopen eliminated. TUI's ui_file much simplified The TUI's ui_file was serving a dual purpose. It supported being used as string buffer, and supported being backed by a stdio FILE. The string buffer part is gone, replaced by using of string_file. The 'FILE *' support is now much simplified, by making the TUI's ui_file inherit from stdio_file. gdb/ChangeLog: 2017-02-02 Pedro Alves <palves@redhat.com> * ada-lang.c (type_as_string): Use string_file. * ada-valprint.c (ada_print_floating): Use string_file. * ada-varobj.c (ada_varobj_scalar_image) (ada_varobj_get_value_image): Use string_file. * aix-thread.c (aix_thread_extra_thread_info): Use string_file. * arm-tdep.c (_initialize_arm_tdep): Use string_printf. * breakpoint.c (update_inserted_breakpoint_locations) (insert_breakpoint_locations, reattach_breakpoints) (print_breakpoint_location, print_one_detail_ranged_breakpoint) (print_it_watchpoint): Use string_file. (save_breakpoints): Use stdio_file. * c-exp.y (oper): Use string_file. * cli/cli-logging.c (set_logging_redirect): Use ui_file_up and tee_file. (pop_output_files): Use delete. (handle_redirections): Use stdio_file and tee_file. * cli/cli-setshow.c (do_show_command): Use string_file. * compile/compile-c-support.c (c_compute_program): Use string_file. * compile/compile-c-symbols.c (generate_vla_size): Take a 'string_file &' instead of a 'ui_file *'. (generate_c_for_for_one_variable): Take a 'string_file &' instead of a 'ui_file *'. Use string_file. (generate_c_for_variable_locations): Take a 'string_file &' instead of a 'ui_file *'. * compile/compile-internal.h (generate_c_for_for_one_variable): Take a 'string_file &' instead of a 'ui_file *'. * compile/compile-loc2c.c (push, pushf, unary, binary) (print_label, pushf_register_address, pushf_register) (do_compile_dwarf_expr_to_c): Take a 'string_file &' instead of a 'ui_file *'. Adjust. * compile/compile.c (compile_to_object): Use string_file. * compile/compile.h (compile_dwarf_expr_to_c) (compile_dwarf_bounds_to_c): Take a 'string_file &' instead of a 'ui_file *'. * cp-support.c (inspect_type): Use string_file and obstack_copy0. (replace_typedefs_qualified_name): Use string_file and obstack_copy0. * disasm.c (gdb_pretty_print_insn): Use string_file. (gdb_disassembly): Adjust reference the null_stream global. (do_ui_file_delete): Delete. (gdb_insn_length): Use null_stream. * dummy-frame.c (maintenance_print_dummy_frames): Use stdio_file. * dwarf2loc.c (dwarf2_compile_property_to_c) (locexpr_generate_c_location, loclist_generate_c_location): Take a 'string_file &' instead of a 'ui_file *'. * dwarf2loc.h (dwarf2_compile_property_to_c): Likewise. * dwarf2read.c (do_ui_file_peek_last): Delete. (dwarf2_compute_name): Use string_file. * event-top.c (gdb_setup_readline): Use stdio_file. * gdbarch.sh (verify_gdbarch): Use string_file. * gdbtypes.c (safe_parse_type): Use null_stream. * guile/scm-breakpoint.c (gdbscm_breakpoint_commands): Use string_file. * guile/scm-disasm.c (gdbscm_print_insn_from_port): Take a 'string_file *' instead of a 'ui_file *'. (gdbscm_arch_disassemble): Use string_file. * guile/scm-frame.c (frscm_print_frame_smob): Use string_file. * guile/scm-ports.c (class ioscm_file_port): Now a class that inherits from ui_file. (ioscm_file_port_delete, ioscm_file_port_rewind) (ioscm_file_port_put): Delete. (ioscm_file_port_write): Rename to ... (ioscm_file_port::write): ... this. Remove file_port_magic checks. (ioscm_file_port_new): Delete. (ioscm_with_output_to_port_worker): Use ioscm_file_port and ui_file_up. * guile/scm-type.c (tyscm_type_name): Use string_file. * guile/scm-value.c (vlscm_print_value_smob, gdbscm_value_print): Use string_file. * infcmd.c (print_return_value_1): Use string_file. * infrun.c (print_target_wait_results): Use string_file. * language.c (add_language): Use string_file. * location.c (explicit_to_string_internal): Use string_file. * main.c (captured_main_1): Use null_file. * maint.c (maintenance_print_architecture): Use stdio_file. * mi/mi-cmd-stack.c (list_arg_or_local): Use string_file. * mi/mi-common.h (struct mi_interp) <out, err, log, targ, event_channel>: Change type to mi_console_file pointer. * mi/mi-console.c (mi_console_file_fputs, mi_console_file_flush) (mi_console_file_delete): Delete. (struct mi_console_file): Delete. (mi_console_file_magic): Delete. (mi_console_file_new): Delete. (mi_console_file::mi_console_file): New. (mi_console_file_delete): Delete. (mi_console_file_fputs): Delete. (mi_console_file::write): New. (mi_console_raw_packet): Delete. (mi_console_file::flush): New. (mi_console_file_flush): Delete. (mi_console_set_raw): Rename to ... (mi_console_file::set_raw): ... this. * mi/mi-console.h (class mi_console_file): New class. (mi_console_file_new, mi_console_set_raw): Delete. * mi/mi-interp.c (mi_interpreter_init): Use mi_console_file. (mi_set_logging): Use delete and tee_file. Adjust. * mi/mi-main.c (output_register): Use string_file. (mi_cmd_data_evaluate_expression): Use string_file. (mi_cmd_data_read_memory): Use string_file. (mi_cmd_execute, print_variable_or_computed): Use string_file. * mi/mi-out.c (mi_ui_out::main_stream): New. (mi_ui_out::rewind): Use main_stream and string_file. (mi_ui_out::put): Use main_stream and string_file. (mi_ui_out::mi_ui_out): Remove 'stream' parameter. Allocate a 'string_file' instead. (mi_out_new): Don't allocate a mem_fileopen stream here. * mi/mi-out.h (mi_ui_out::mi_ui_out): Remove 'stream' parameter. (mi_ui_out::main_stream): Declare method. * printcmd.c (eval_command): Use string_file. * psymtab.c (maintenance_print_psymbols): Use stdio_file. * python/py-arch.c (archpy_disassemble): Use string_file. * python/py-breakpoint.c (bppy_get_commands): Use string_file. * python/py-frame.c (frapy_str): Use string_file. * python/py-framefilter.c (py_print_type, py_print_single_arg): Use string_file. * python/py-type.c (typy_str): Use string_file. * python/py-unwind.c (unwind_infopy_str): Use string_file. * python/py-value.c (valpy_str): Use string_file. * record-btrace.c (btrace_insn_history): Use string_file. * regcache.c (regcache_print): Use stdio_file. * reggroups.c (maintenance_print_reggroups): Use stdio_file. * remote.c (escape_buffer): Use string_file. * rust-lang.c (rust_get_disr_info): Use string_file. * serial.c (serial_open_ops_1): Use stdio_file. (do_serial_close): Use delete. * stack.c (print_frame_arg): Use string_file. (print_frame_args): Remove local mem_fileopen stream, not used. (print_frame): Use string_file. * symmisc.c (maintenance_print_symbols): Use stdio_file. * symtab.h (struct symbol_computed_ops) <generate_c_location>: Take a 'string_file *' instead of a 'ui_file *'. * top.c (new_ui): Use stdio_file and stderr_file. (free_ui): Use delete. (execute_command_to_string): Use string_file. (quit_confirm): Use string_file. * tracepoint.c (collection_list::append_exp): Use string_file. * tui/tui-disasm.c (tui_disassemble): Use string_file. * tui/tui-file.c: Don't include "ui-file.h". (enum streamtype, struct tui_stream): Delete. (tui_file_new, tui_file_delete, tui_fileopen, tui_sfileopen) (tui_file_isatty, tui_file_rewind, tui_file_put): Delete. (tui_file::tui_file): New method. (tui_file_fputs): Delete. (tui_file_get_strbuf): Delete. (tui_file::puts): New method. (tui_file_adjust_strbuf): Delete. (tui_file_flush): Delete. (tui_file::flush): New method. * tui/tui-file.h: Tweak intro comment. Include ui-file.h. (tui_fileopen, tui_sfileopen, tui_file_get_strbuf) (tui_file_adjust_strbuf): Delete declarations. (class tui_file): New class. * tui/tui-io.c (tui_initialize_io): Use tui_file. * tui/tui-regs.c (tui_restore_gdbout): Use delete. (tui_register_format): Use string_stream. * tui/tui-stack.c (tui_make_status_line): Use string_file. (tui_get_function_from_frame): Use string_file. * typeprint.c (type_to_string): Use string_file. * ui-file.c (struct ui_file, ui_file_magic, ui_file_new): Delete. (null_stream): New global. (ui_file_delete): Delete. (ui_file::ui_file): New. (null_file_isatty): Delete. (ui_file::~ui_file): New. (null_file_rewind): Delete. (ui_file::printf): New. (null_file_put): Delete. (null_file_flush): Delete. (ui_file::putstr): New. (null_file_write): Delete. (ui_file::putstrn): New. (null_file_read): Delete. (ui_file::putc): New. (null_file_fputs): Delete. (null_file_write_async_safe): Delete. (ui_file::vprintf): New. (null_file_delete): Delete. (null_file::write): New. (null_file_fseek): Delete. (null_file::puts): New. (ui_file_data): Delete. (null_file::write_async_safe): New. (gdb_flush, ui_file_isatty): Adjust. (ui_file_put, ui_file_rewind): Delete. (ui_file_write): Adjust. (ui_file_write_for_put): Delete. (ui_file_write_async_safe, ui_file_read): Adjust. (ui_file_fseek): Delete. (fputs_unfiltered): Adjust. (set_ui_file_flush, set_ui_file_isatty, set_ui_file_rewind) (set_ui_file_put, set_ui_file_write, set_ui_file_write_async_safe) (set_ui_file_read, set_ui_file_fputs, set_ui_file_fseek) (set_ui_file_data): Delete. (string_file::~string_file, string_file::write) (struct accumulated_ui_file, do_ui_file_xstrdup, ui_file_xstrdup) (do_ui_file_as_string, ui_file_as_string): Delete. (do_ui_file_obsavestring, ui_file_obsavestring): Delete. (struct mem_file): Delete. (mem_file_new): Delete. (stdio_file::stdio_file): New. (mem_file_delete): Delete. (stdio_file::stdio_file): New. (mem_fileopen): Delete. (stdio_file::~stdio_file): New. (mem_file_rewind): Delete. (stdio_file::set_stream): New. (mem_file_put): Delete. (stdio_file::open): New. (mem_file_write): Delete. (stdio_file_magic, struct stdio_file): Delete. (stdio_file_new, stdio_file_delete, stdio_file_flush): Delete. (stdio_file::flush): New. (stdio_file_read): Rename to ... (stdio_file::read): ... this. Adjust. (stdio_file_write): Rename to ... (stdio_file::write): ... this. Adjust. (stdio_file_write_async_safe): Rename to ... (stdio_file::write_async_safe) ... this. Adjust. (stdio_file_fputs): Rename to ... (stdio_file::puts) ... this. Adjust. (stdio_file_isatty): Delete. (stdio_file_fseek): Delete. (stdio_file::isatty): New. (stderr_file_write): Rename to ... (stderr_file::write) ... this. Adjust. (stderr_file_fputs): Rename to ... (stderr_file::puts) ... this. Adjust. (stderr_fileopen, stdio_fileopen, gdb_fopen): Delete. (stderr_file::stderr_file): New. (tee_file_magic): Delete. (struct tee_file): Delete. (tee_file::tee_file): New. (tee_file_new): Delete. (tee_file::~tee_file): New. (tee_file_delete): Delete. (tee_file_flush): Rename to ... (tee_file::flush): ... this. Adjust. (tee_file_write): Rename to ... (tee_file::write): ... this. Adjust. (tee_file::write_async_safe): New. (tee_file_fputs): Rename to ... (tee_file::puts): ... this. Adjust. (tee_file_isatty): Rename to ... (tee_file::isatty): ... this. Adjust. * ui-file.h (struct obstack, struct ui_file): Don't forward-declare. (ui_file_new, ui_file_flush_ftype, set_ui_file_flush) (ui_file_write_ftype) (set_ui_file_write, ui_file_fputs_ftype, set_ui_file_fputs) (ui_file_write_async_safe_ftype, set_ui_file_write_async_safe) (ui_file_read_ftype, set_ui_file_read, ui_file_isatty_ftype) (set_ui_file_isatty, ui_file_rewind_ftype, set_ui_file_rewind) (ui_file_put_method_ftype, ui_file_put_ftype, set_ui_file_put) (ui_file_delete_ftype, set_ui_file_data, ui_file_fseek_ftype) (set_ui_file_fseek): Delete. (ui_file_data, ui_file_delete, ui_file_rewind) (struct ui_file): New. (ui_file_up): New. (class null_file): New. (null_stream): Declare. (ui_file_write_for_put, ui_file_put): Delete. (ui_file_xstrdup, ui_file_as_string, ui_file_obsavestring): Delete. (ui_file_fseek, mem_fileopen, stdio_fileopen, stderr_fileopen) (gdb_fopen, tee_file_new): Delete. (struct string_file): New. (struct stdio_file): New. (stdio_file_up): New. (struct stderr_file): New. (class tee_file): New. * ui-out.c (ui_out::field_stream): Take a 'string_file &' instead of a 'ui_file *'. Adjust. * ui-out.h (class ui_out) <field_stream>: Likewise. * utils.c (do_ui_file_delete, make_cleanup_ui_file_delete) (null_stream): Delete. (error_stream): Take a 'string_file &' instead of a 'ui_file *'. Adjust. * utils.h (struct ui_file): Delete forward declaration.. (make_cleanup_ui_file_delete, null_stream): Delete declarations. (error_stream): Take a 'string_file &' instead of a 'ui_file *'. * varobj.c (varobj_value_get_print_value): Use string_file. * xtensa-tdep.c (xtensa_verify_config): Use string_file. * gdbarch.c: Regenerate.
2017-02-02 12:11:47 +01:00
buf.putc (space);
Explicit locations: introduce explicit locations This patch add support for explicit locations and switches many linespec locations to this new location type. This patch also converts all linespec locations entered by the user to an explicit representation internally (thus bypassing the linespec parser when resetting the breakpoint). This patch does not introduce any user-visible changes. gdb/ChangeLog: * break-catch-throw.c (re_set_exception_catchpoint): Convert linespec into explicit location. * breakpoint.c (create_overlay_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Convert linespec into explicit location. (update_static_tracepoint): Convert linespec into explicit location. * linespec.c (enum offset_relative_sign, struct line_offset): Move location.h. (struct linespec) <expression, expr_pc, source_filename> <function_name, label_name, line_offset>: Replace with ... <explicit>: ... this. <is_linespec>: New member. (PARSER_EXPLICIT): New accessor macro. (undefined_label_error): New function. (source_file_not_found_error): New function. (linespec_parse_basic): The parser result is now an explicit location. Use PARSER_EXPLICIT to access it. Use undefined_label_error. (canonicalize_linespec): Convert canonical linespec into explicit location. Move string representation of location to explicit_location_to_linespec and use it and explicit_location_to_string to save string representations of the canonical location. (create_sals_line_offset, convert_linespec_to_sals): `ls' contains an explicit location. Update all references. (convert_explicit_location_to_sals): New function. (parse_linespec): Use PARSER_EXPLICIT to access the parser result's explicit location. (linespec_state_constructor): Initialize is_linespec. Use PARSER_EXPLICIT. (linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's result. (event_location_to_sals): For linespec locations, set is_linespec. Handle explicit locations. (decode_objc): 'ls' contains an explicit location now. Update all references. (symtabs_from_filename): Use source_file_not_found_error. * location.c (struct event_location.u) <explicit>: New member. (initialize_explicit_location): New function. (initialize_event_location): Initialize explicit locations. (new_explicit_location, get_explicit_location) (get_explicit_location_const): New functions. (explicit_to_string_internal): New function; most of contents moved from canonicalize_linespec. (explicit_location_to_string): New function. (explicit_location_to_linespec): New function. (copy_event_location, delete_event_location) (event_location_to_string_const, event_location_empty_p): Handle explicit locations. * location.h (enum offset_relative_sign, struct line_offset): Move here from linespec.h. (enum event_location_type): Add EXPLICIT_LOCATION. (struct explicit_location): New structure. (explicit_location_to_string): Declare. (explicit_location_to_linespec): Declare. (new_explicit_location, get_explicit_locationp (get_explicit_location_const, initialize_explicit_location): Declare.
2015-08-12 02:09:35 +02:00
if (!as_linespec)
Eliminate make_cleanup_ui_file_delete / make ui_file a class hierarchy This patch starts from the desire to eliminate make_cleanup_ui_file_delete, but then goes beyond. It makes ui_file & friends a real C++ class hierarchy, and switches temporary ui_file-like objects to stack-based allocation. - mem_fileopen -> string_file mem_fileopen is replaced with a new string_file class that is treated as a value class created on the stack. This alone eliminates most make_cleanup_ui_file_delete calls, and, simplifies code a whole lot (diffstat shows around 1k loc dropped.) string_file's internal buffer is a std::string, thus the "string" in the name. This simplifies the implementation much, compared to mem_fileopen, which managed growing its internal buffer manually. - ui_file_as_string, ui_file_strdup, ui_file_obsavestring all gone The new string_file class has a string() method that provides direct writable access to the internal std::string buffer. This replaced ui_file_as_string, which forced a copy of the same data the stream had inside. With direct access via a writable reference, we can instead move the string out of the string_stream, avoiding deep string copying. Related, ui_file_xstrdup calls are replaced with xstrdup'ping the stream's string, and ui_file_obsavestring is replaced by obstack_copy0. With all those out of the way, getting rid of the weird ui_file_put mechanism was possible. - New ui_file::printf, ui_file::puts, etc. methods These simplify / clarify client code. I considered splitting client-code changes, like these, e.g.: - stb = mem_fileopen (); - fprintf_unfiltered (stb, "%s%s%s", - _("The valid values are:\n"), - regdesc, - _("The default is \"std\".")); + string_file stb; + stb.printf ("%s%s%s", + _("The valid values are:\n"), + regdesc, + _("The default is \"std\".")); In two steps, with the first step leaving fprintf_unfiltered (etc.) calls in place, and only afterwards do a pass to change all those to call stb.printf etc.. I didn't do that split, because (when I tried), it turned out to be pointless make-work: the first pass would have to touch the fprintf_unfiltered line anyway, to replace "stb" with "&stb". - gdb_fopen replaced with stack-based objects This avoids the need for cleanups or unique_ptr's. I.e., this: struct ui_file *file = gdb_fopen (filename, "w"); if (filename == NULL) perror_with_name (filename); cleanups = make_cleanup_ui_file_delete (file); // use file. do_cleanups (cleanups); is replaced with this: stdio_file file; if (!file.open (filename, "w")) perror_with_name (filename); // use file. - odd contorsions in null_file_write / null_file_fputs around when to call to_fputs / to_write eliminated. - Global null_stream object A few places that were allocating a ui_file in order to print to "nowhere" are adjusted to instead refer to a new 'null_stream' global stream. - TUI's tui_sfileopen eliminated. TUI's ui_file much simplified The TUI's ui_file was serving a dual purpose. It supported being used as string buffer, and supported being backed by a stdio FILE. The string buffer part is gone, replaced by using of string_file. The 'FILE *' support is now much simplified, by making the TUI's ui_file inherit from stdio_file. gdb/ChangeLog: 2017-02-02 Pedro Alves <palves@redhat.com> * ada-lang.c (type_as_string): Use string_file. * ada-valprint.c (ada_print_floating): Use string_file. * ada-varobj.c (ada_varobj_scalar_image) (ada_varobj_get_value_image): Use string_file. * aix-thread.c (aix_thread_extra_thread_info): Use string_file. * arm-tdep.c (_initialize_arm_tdep): Use string_printf. * breakpoint.c (update_inserted_breakpoint_locations) (insert_breakpoint_locations, reattach_breakpoints) (print_breakpoint_location, print_one_detail_ranged_breakpoint) (print_it_watchpoint): Use string_file. (save_breakpoints): Use stdio_file. * c-exp.y (oper): Use string_file. * cli/cli-logging.c (set_logging_redirect): Use ui_file_up and tee_file. (pop_output_files): Use delete. (handle_redirections): Use stdio_file and tee_file. * cli/cli-setshow.c (do_show_command): Use string_file. * compile/compile-c-support.c (c_compute_program): Use string_file. * compile/compile-c-symbols.c (generate_vla_size): Take a 'string_file &' instead of a 'ui_file *'. (generate_c_for_for_one_variable): Take a 'string_file &' instead of a 'ui_file *'. Use string_file. (generate_c_for_variable_locations): Take a 'string_file &' instead of a 'ui_file *'. * compile/compile-internal.h (generate_c_for_for_one_variable): Take a 'string_file &' instead of a 'ui_file *'. * compile/compile-loc2c.c (push, pushf, unary, binary) (print_label, pushf_register_address, pushf_register) (do_compile_dwarf_expr_to_c): Take a 'string_file &' instead of a 'ui_file *'. Adjust. * compile/compile.c (compile_to_object): Use string_file. * compile/compile.h (compile_dwarf_expr_to_c) (compile_dwarf_bounds_to_c): Take a 'string_file &' instead of a 'ui_file *'. * cp-support.c (inspect_type): Use string_file and obstack_copy0. (replace_typedefs_qualified_name): Use string_file and obstack_copy0. * disasm.c (gdb_pretty_print_insn): Use string_file. (gdb_disassembly): Adjust reference the null_stream global. (do_ui_file_delete): Delete. (gdb_insn_length): Use null_stream. * dummy-frame.c (maintenance_print_dummy_frames): Use stdio_file. * dwarf2loc.c (dwarf2_compile_property_to_c) (locexpr_generate_c_location, loclist_generate_c_location): Take a 'string_file &' instead of a 'ui_file *'. * dwarf2loc.h (dwarf2_compile_property_to_c): Likewise. * dwarf2read.c (do_ui_file_peek_last): Delete. (dwarf2_compute_name): Use string_file. * event-top.c (gdb_setup_readline): Use stdio_file. * gdbarch.sh (verify_gdbarch): Use string_file. * gdbtypes.c (safe_parse_type): Use null_stream. * guile/scm-breakpoint.c (gdbscm_breakpoint_commands): Use string_file. * guile/scm-disasm.c (gdbscm_print_insn_from_port): Take a 'string_file *' instead of a 'ui_file *'. (gdbscm_arch_disassemble): Use string_file. * guile/scm-frame.c (frscm_print_frame_smob): Use string_file. * guile/scm-ports.c (class ioscm_file_port): Now a class that inherits from ui_file. (ioscm_file_port_delete, ioscm_file_port_rewind) (ioscm_file_port_put): Delete. (ioscm_file_port_write): Rename to ... (ioscm_file_port::write): ... this. Remove file_port_magic checks. (ioscm_file_port_new): Delete. (ioscm_with_output_to_port_worker): Use ioscm_file_port and ui_file_up. * guile/scm-type.c (tyscm_type_name): Use string_file. * guile/scm-value.c (vlscm_print_value_smob, gdbscm_value_print): Use string_file. * infcmd.c (print_return_value_1): Use string_file. * infrun.c (print_target_wait_results): Use string_file. * language.c (add_language): Use string_file. * location.c (explicit_to_string_internal): Use string_file. * main.c (captured_main_1): Use null_file. * maint.c (maintenance_print_architecture): Use stdio_file. * mi/mi-cmd-stack.c (list_arg_or_local): Use string_file. * mi/mi-common.h (struct mi_interp) <out, err, log, targ, event_channel>: Change type to mi_console_file pointer. * mi/mi-console.c (mi_console_file_fputs, mi_console_file_flush) (mi_console_file_delete): Delete. (struct mi_console_file): Delete. (mi_console_file_magic): Delete. (mi_console_file_new): Delete. (mi_console_file::mi_console_file): New. (mi_console_file_delete): Delete. (mi_console_file_fputs): Delete. (mi_console_file::write): New. (mi_console_raw_packet): Delete. (mi_console_file::flush): New. (mi_console_file_flush): Delete. (mi_console_set_raw): Rename to ... (mi_console_file::set_raw): ... this. * mi/mi-console.h (class mi_console_file): New class. (mi_console_file_new, mi_console_set_raw): Delete. * mi/mi-interp.c (mi_interpreter_init): Use mi_console_file. (mi_set_logging): Use delete and tee_file. Adjust. * mi/mi-main.c (output_register): Use string_file. (mi_cmd_data_evaluate_expression): Use string_file. (mi_cmd_data_read_memory): Use string_file. (mi_cmd_execute, print_variable_or_computed): Use string_file. * mi/mi-out.c (mi_ui_out::main_stream): New. (mi_ui_out::rewind): Use main_stream and string_file. (mi_ui_out::put): Use main_stream and string_file. (mi_ui_out::mi_ui_out): Remove 'stream' parameter. Allocate a 'string_file' instead. (mi_out_new): Don't allocate a mem_fileopen stream here. * mi/mi-out.h (mi_ui_out::mi_ui_out): Remove 'stream' parameter. (mi_ui_out::main_stream): Declare method. * printcmd.c (eval_command): Use string_file. * psymtab.c (maintenance_print_psymbols): Use stdio_file. * python/py-arch.c (archpy_disassemble): Use string_file. * python/py-breakpoint.c (bppy_get_commands): Use string_file. * python/py-frame.c (frapy_str): Use string_file. * python/py-framefilter.c (py_print_type, py_print_single_arg): Use string_file. * python/py-type.c (typy_str): Use string_file. * python/py-unwind.c (unwind_infopy_str): Use string_file. * python/py-value.c (valpy_str): Use string_file. * record-btrace.c (btrace_insn_history): Use string_file. * regcache.c (regcache_print): Use stdio_file. * reggroups.c (maintenance_print_reggroups): Use stdio_file. * remote.c (escape_buffer): Use string_file. * rust-lang.c (rust_get_disr_info): Use string_file. * serial.c (serial_open_ops_1): Use stdio_file. (do_serial_close): Use delete. * stack.c (print_frame_arg): Use string_file. (print_frame_args): Remove local mem_fileopen stream, not used. (print_frame): Use string_file. * symmisc.c (maintenance_print_symbols): Use stdio_file. * symtab.h (struct symbol_computed_ops) <generate_c_location>: Take a 'string_file *' instead of a 'ui_file *'. * top.c (new_ui): Use stdio_file and stderr_file. (free_ui): Use delete. (execute_command_to_string): Use string_file. (quit_confirm): Use string_file. * tracepoint.c (collection_list::append_exp): Use string_file. * tui/tui-disasm.c (tui_disassemble): Use string_file. * tui/tui-file.c: Don't include "ui-file.h". (enum streamtype, struct tui_stream): Delete. (tui_file_new, tui_file_delete, tui_fileopen, tui_sfileopen) (tui_file_isatty, tui_file_rewind, tui_file_put): Delete. (tui_file::tui_file): New method. (tui_file_fputs): Delete. (tui_file_get_strbuf): Delete. (tui_file::puts): New method. (tui_file_adjust_strbuf): Delete. (tui_file_flush): Delete. (tui_file::flush): New method. * tui/tui-file.h: Tweak intro comment. Include ui-file.h. (tui_fileopen, tui_sfileopen, tui_file_get_strbuf) (tui_file_adjust_strbuf): Delete declarations. (class tui_file): New class. * tui/tui-io.c (tui_initialize_io): Use tui_file. * tui/tui-regs.c (tui_restore_gdbout): Use delete. (tui_register_format): Use string_stream. * tui/tui-stack.c (tui_make_status_line): Use string_file. (tui_get_function_from_frame): Use string_file. * typeprint.c (type_to_string): Use string_file. * ui-file.c (struct ui_file, ui_file_magic, ui_file_new): Delete. (null_stream): New global. (ui_file_delete): Delete. (ui_file::ui_file): New. (null_file_isatty): Delete. (ui_file::~ui_file): New. (null_file_rewind): Delete. (ui_file::printf): New. (null_file_put): Delete. (null_file_flush): Delete. (ui_file::putstr): New. (null_file_write): Delete. (ui_file::putstrn): New. (null_file_read): Delete. (ui_file::putc): New. (null_file_fputs): Delete. (null_file_write_async_safe): Delete. (ui_file::vprintf): New. (null_file_delete): Delete. (null_file::write): New. (null_file_fseek): Delete. (null_file::puts): New. (ui_file_data): Delete. (null_file::write_async_safe): New. (gdb_flush, ui_file_isatty): Adjust. (ui_file_put, ui_file_rewind): Delete. (ui_file_write): Adjust. (ui_file_write_for_put): Delete. (ui_file_write_async_safe, ui_file_read): Adjust. (ui_file_fseek): Delete. (fputs_unfiltered): Adjust. (set_ui_file_flush, set_ui_file_isatty, set_ui_file_rewind) (set_ui_file_put, set_ui_file_write, set_ui_file_write_async_safe) (set_ui_file_read, set_ui_file_fputs, set_ui_file_fseek) (set_ui_file_data): Delete. (string_file::~string_file, string_file::write) (struct accumulated_ui_file, do_ui_file_xstrdup, ui_file_xstrdup) (do_ui_file_as_string, ui_file_as_string): Delete. (do_ui_file_obsavestring, ui_file_obsavestring): Delete. (struct mem_file): Delete. (mem_file_new): Delete. (stdio_file::stdio_file): New. (mem_file_delete): Delete. (stdio_file::stdio_file): New. (mem_fileopen): Delete. (stdio_file::~stdio_file): New. (mem_file_rewind): Delete. (stdio_file::set_stream): New. (mem_file_put): Delete. (stdio_file::open): New. (mem_file_write): Delete. (stdio_file_magic, struct stdio_file): Delete. (stdio_file_new, stdio_file_delete, stdio_file_flush): Delete. (stdio_file::flush): New. (stdio_file_read): Rename to ... (stdio_file::read): ... this. Adjust. (stdio_file_write): Rename to ... (stdio_file::write): ... this. Adjust. (stdio_file_write_async_safe): Rename to ... (stdio_file::write_async_safe) ... this. Adjust. (stdio_file_fputs): Rename to ... (stdio_file::puts) ... this. Adjust. (stdio_file_isatty): Delete. (stdio_file_fseek): Delete. (stdio_file::isatty): New. (stderr_file_write): Rename to ... (stderr_file::write) ... this. Adjust. (stderr_file_fputs): Rename to ... (stderr_file::puts) ... this. Adjust. (stderr_fileopen, stdio_fileopen, gdb_fopen): Delete. (stderr_file::stderr_file): New. (tee_file_magic): Delete. (struct tee_file): Delete. (tee_file::tee_file): New. (tee_file_new): Delete. (tee_file::~tee_file): New. (tee_file_delete): Delete. (tee_file_flush): Rename to ... (tee_file::flush): ... this. Adjust. (tee_file_write): Rename to ... (tee_file::write): ... this. Adjust. (tee_file::write_async_safe): New. (tee_file_fputs): Rename to ... (tee_file::puts): ... this. Adjust. (tee_file_isatty): Rename to ... (tee_file::isatty): ... this. Adjust. * ui-file.h (struct obstack, struct ui_file): Don't forward-declare. (ui_file_new, ui_file_flush_ftype, set_ui_file_flush) (ui_file_write_ftype) (set_ui_file_write, ui_file_fputs_ftype, set_ui_file_fputs) (ui_file_write_async_safe_ftype, set_ui_file_write_async_safe) (ui_file_read_ftype, set_ui_file_read, ui_file_isatty_ftype) (set_ui_file_isatty, ui_file_rewind_ftype, set_ui_file_rewind) (ui_file_put_method_ftype, ui_file_put_ftype, set_ui_file_put) (ui_file_delete_ftype, set_ui_file_data, ui_file_fseek_ftype) (set_ui_file_fseek): Delete. (ui_file_data, ui_file_delete, ui_file_rewind) (struct ui_file): New. (ui_file_up): New. (class null_file): New. (null_stream): Declare. (ui_file_write_for_put, ui_file_put): Delete. (ui_file_xstrdup, ui_file_as_string, ui_file_obsavestring): Delete. (ui_file_fseek, mem_fileopen, stdio_fileopen, stderr_fileopen) (gdb_fopen, tee_file_new): Delete. (struct string_file): New. (struct stdio_file): New. (stdio_file_up): New. (struct stderr_file): New. (class tee_file): New. * ui-out.c (ui_out::field_stream): Take a 'string_file &' instead of a 'ui_file *'. Adjust. * ui-out.h (class ui_out) <field_stream>: Likewise. * utils.c (do_ui_file_delete, make_cleanup_ui_file_delete) (null_stream): Delete. (error_stream): Take a 'string_file &' instead of a 'ui_file *'. Adjust. * utils.h (struct ui_file): Delete forward declaration.. (make_cleanup_ui_file_delete, null_stream): Delete declarations. (error_stream): Take a 'string_file &' instead of a 'ui_file *'. * varobj.c (varobj_value_get_print_value): Use string_file. * xtensa-tdep.c (xtensa_verify_config): Use string_file. * gdbarch.c: Regenerate.
2017-02-02 12:11:47 +01:00
buf.puts ("-label ");
buf.puts (explicit_loc->label_name);
Explicit locations: introduce explicit locations This patch add support for explicit locations and switches many linespec locations to this new location type. This patch also converts all linespec locations entered by the user to an explicit representation internally (thus bypassing the linespec parser when resetting the breakpoint). This patch does not introduce any user-visible changes. gdb/ChangeLog: * break-catch-throw.c (re_set_exception_catchpoint): Convert linespec into explicit location. * breakpoint.c (create_overlay_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Convert linespec into explicit location. (update_static_tracepoint): Convert linespec into explicit location. * linespec.c (enum offset_relative_sign, struct line_offset): Move location.h. (struct linespec) <expression, expr_pc, source_filename> <function_name, label_name, line_offset>: Replace with ... <explicit>: ... this. <is_linespec>: New member. (PARSER_EXPLICIT): New accessor macro. (undefined_label_error): New function. (source_file_not_found_error): New function. (linespec_parse_basic): The parser result is now an explicit location. Use PARSER_EXPLICIT to access it. Use undefined_label_error. (canonicalize_linespec): Convert canonical linespec into explicit location. Move string representation of location to explicit_location_to_linespec and use it and explicit_location_to_string to save string representations of the canonical location. (create_sals_line_offset, convert_linespec_to_sals): `ls' contains an explicit location. Update all references. (convert_explicit_location_to_sals): New function. (parse_linespec): Use PARSER_EXPLICIT to access the parser result's explicit location. (linespec_state_constructor): Initialize is_linespec. Use PARSER_EXPLICIT. (linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's result. (event_location_to_sals): For linespec locations, set is_linespec. Handle explicit locations. (decode_objc): 'ls' contains an explicit location now. Update all references. (symtabs_from_filename): Use source_file_not_found_error. * location.c (struct event_location.u) <explicit>: New member. (initialize_explicit_location): New function. (initialize_event_location): Initialize explicit locations. (new_explicit_location, get_explicit_location) (get_explicit_location_const): New functions. (explicit_to_string_internal): New function; most of contents moved from canonicalize_linespec. (explicit_location_to_string): New function. (explicit_location_to_linespec): New function. (copy_event_location, delete_event_location) (event_location_to_string_const, event_location_empty_p): Handle explicit locations. * location.h (enum offset_relative_sign, struct line_offset): Move here from linespec.h. (enum event_location_type): Add EXPLICIT_LOCATION. (struct explicit_location): New structure. (explicit_location_to_string): Declare. (explicit_location_to_linespec): Declare. (new_explicit_location, get_explicit_locationp (get_explicit_location_const, initialize_explicit_location): Declare.
2015-08-12 02:09:35 +02:00
need_space = 1;
}
Mass rename `explicit' -> `explicit_loc'. BuildBot reminded me that "explicit" is a reserved keyword in C++. This patch simply renames all the (illegal) uses of "explicit". This should fix the build errors with --enable-build-with-cxx bots. gdb/ChangeLog * break-catch-throw.c (re_set_exception_catchpoint) Rename reserved C++ keyword "explicit" to "explicit_loc". * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint, update_static_tracepoint): Rename reserved C++ keyword "explicit" to "explicit_loc". * completer.c (collect_explicit_location_matches) (explicit_location_completer): Rename reserved C++ keyword "explicit" to "explicit_loc". * linespec.c (struct linespec) <explicit>: Rename to "explicit_loc". (canonicalize_linespec, create_sals_line_offset) (convert_linespec_to_sals, convert_explicit_location_to_sals) (event_location_to_sals, decode_objc): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.c (struct event_location) <explicit>: Rename to "explicit_loc". (initialize_explicit_location, new_explicit_location) (explicit_location_to_string_internal, explicit_location_to_linespec): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.h (explicit_location_to_string) (explicit_location_to_linespec, initialize_explicit_location) (new_explicit_location): Rename reserved C++ keyword "explicit" to "explicit_loc". * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Rename reserved C++ keyword "explicit" to "explicit_loc".
2015-08-13 18:48:12 +02:00
if (explicit_loc->line_offset.sign != LINE_OFFSET_UNKNOWN)
Explicit locations: introduce explicit locations This patch add support for explicit locations and switches many linespec locations to this new location type. This patch also converts all linespec locations entered by the user to an explicit representation internally (thus bypassing the linespec parser when resetting the breakpoint). This patch does not introduce any user-visible changes. gdb/ChangeLog: * break-catch-throw.c (re_set_exception_catchpoint): Convert linespec into explicit location. * breakpoint.c (create_overlay_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Convert linespec into explicit location. (update_static_tracepoint): Convert linespec into explicit location. * linespec.c (enum offset_relative_sign, struct line_offset): Move location.h. (struct linespec) <expression, expr_pc, source_filename> <function_name, label_name, line_offset>: Replace with ... <explicit>: ... this. <is_linespec>: New member. (PARSER_EXPLICIT): New accessor macro. (undefined_label_error): New function. (source_file_not_found_error): New function. (linespec_parse_basic): The parser result is now an explicit location. Use PARSER_EXPLICIT to access it. Use undefined_label_error. (canonicalize_linespec): Convert canonical linespec into explicit location. Move string representation of location to explicit_location_to_linespec and use it and explicit_location_to_string to save string representations of the canonical location. (create_sals_line_offset, convert_linespec_to_sals): `ls' contains an explicit location. Update all references. (convert_explicit_location_to_sals): New function. (parse_linespec): Use PARSER_EXPLICIT to access the parser result's explicit location. (linespec_state_constructor): Initialize is_linespec. Use PARSER_EXPLICIT. (linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's result. (event_location_to_sals): For linespec locations, set is_linespec. Handle explicit locations. (decode_objc): 'ls' contains an explicit location now. Update all references. (symtabs_from_filename): Use source_file_not_found_error. * location.c (struct event_location.u) <explicit>: New member. (initialize_explicit_location): New function. (initialize_event_location): Initialize explicit locations. (new_explicit_location, get_explicit_location) (get_explicit_location_const): New functions. (explicit_to_string_internal): New function; most of contents moved from canonicalize_linespec. (explicit_location_to_string): New function. (explicit_location_to_linespec): New function. (copy_event_location, delete_event_location) (event_location_to_string_const, event_location_empty_p): Handle explicit locations. * location.h (enum offset_relative_sign, struct line_offset): Move here from linespec.h. (enum event_location_type): Add EXPLICIT_LOCATION. (struct explicit_location): New structure. (explicit_location_to_string): Declare. (explicit_location_to_linespec): Declare. (new_explicit_location, get_explicit_locationp (get_explicit_location_const, initialize_explicit_location): Declare.
2015-08-12 02:09:35 +02:00
{
if (need_space)
Eliminate make_cleanup_ui_file_delete / make ui_file a class hierarchy This patch starts from the desire to eliminate make_cleanup_ui_file_delete, but then goes beyond. It makes ui_file & friends a real C++ class hierarchy, and switches temporary ui_file-like objects to stack-based allocation. - mem_fileopen -> string_file mem_fileopen is replaced with a new string_file class that is treated as a value class created on the stack. This alone eliminates most make_cleanup_ui_file_delete calls, and, simplifies code a whole lot (diffstat shows around 1k loc dropped.) string_file's internal buffer is a std::string, thus the "string" in the name. This simplifies the implementation much, compared to mem_fileopen, which managed growing its internal buffer manually. - ui_file_as_string, ui_file_strdup, ui_file_obsavestring all gone The new string_file class has a string() method that provides direct writable access to the internal std::string buffer. This replaced ui_file_as_string, which forced a copy of the same data the stream had inside. With direct access via a writable reference, we can instead move the string out of the string_stream, avoiding deep string copying. Related, ui_file_xstrdup calls are replaced with xstrdup'ping the stream's string, and ui_file_obsavestring is replaced by obstack_copy0. With all those out of the way, getting rid of the weird ui_file_put mechanism was possible. - New ui_file::printf, ui_file::puts, etc. methods These simplify / clarify client code. I considered splitting client-code changes, like these, e.g.: - stb = mem_fileopen (); - fprintf_unfiltered (stb, "%s%s%s", - _("The valid values are:\n"), - regdesc, - _("The default is \"std\".")); + string_file stb; + stb.printf ("%s%s%s", + _("The valid values are:\n"), + regdesc, + _("The default is \"std\".")); In two steps, with the first step leaving fprintf_unfiltered (etc.) calls in place, and only afterwards do a pass to change all those to call stb.printf etc.. I didn't do that split, because (when I tried), it turned out to be pointless make-work: the first pass would have to touch the fprintf_unfiltered line anyway, to replace "stb" with "&stb". - gdb_fopen replaced with stack-based objects This avoids the need for cleanups or unique_ptr's. I.e., this: struct ui_file *file = gdb_fopen (filename, "w"); if (filename == NULL) perror_with_name (filename); cleanups = make_cleanup_ui_file_delete (file); // use file. do_cleanups (cleanups); is replaced with this: stdio_file file; if (!file.open (filename, "w")) perror_with_name (filename); // use file. - odd contorsions in null_file_write / null_file_fputs around when to call to_fputs / to_write eliminated. - Global null_stream object A few places that were allocating a ui_file in order to print to "nowhere" are adjusted to instead refer to a new 'null_stream' global stream. - TUI's tui_sfileopen eliminated. TUI's ui_file much simplified The TUI's ui_file was serving a dual purpose. It supported being used as string buffer, and supported being backed by a stdio FILE. The string buffer part is gone, replaced by using of string_file. The 'FILE *' support is now much simplified, by making the TUI's ui_file inherit from stdio_file. gdb/ChangeLog: 2017-02-02 Pedro Alves <palves@redhat.com> * ada-lang.c (type_as_string): Use string_file. * ada-valprint.c (ada_print_floating): Use string_file. * ada-varobj.c (ada_varobj_scalar_image) (ada_varobj_get_value_image): Use string_file. * aix-thread.c (aix_thread_extra_thread_info): Use string_file. * arm-tdep.c (_initialize_arm_tdep): Use string_printf. * breakpoint.c (update_inserted_breakpoint_locations) (insert_breakpoint_locations, reattach_breakpoints) (print_breakpoint_location, print_one_detail_ranged_breakpoint) (print_it_watchpoint): Use string_file. (save_breakpoints): Use stdio_file. * c-exp.y (oper): Use string_file. * cli/cli-logging.c (set_logging_redirect): Use ui_file_up and tee_file. (pop_output_files): Use delete. (handle_redirections): Use stdio_file and tee_file. * cli/cli-setshow.c (do_show_command): Use string_file. * compile/compile-c-support.c (c_compute_program): Use string_file. * compile/compile-c-symbols.c (generate_vla_size): Take a 'string_file &' instead of a 'ui_file *'. (generate_c_for_for_one_variable): Take a 'string_file &' instead of a 'ui_file *'. Use string_file. (generate_c_for_variable_locations): Take a 'string_file &' instead of a 'ui_file *'. * compile/compile-internal.h (generate_c_for_for_one_variable): Take a 'string_file &' instead of a 'ui_file *'. * compile/compile-loc2c.c (push, pushf, unary, binary) (print_label, pushf_register_address, pushf_register) (do_compile_dwarf_expr_to_c): Take a 'string_file &' instead of a 'ui_file *'. Adjust. * compile/compile.c (compile_to_object): Use string_file. * compile/compile.h (compile_dwarf_expr_to_c) (compile_dwarf_bounds_to_c): Take a 'string_file &' instead of a 'ui_file *'. * cp-support.c (inspect_type): Use string_file and obstack_copy0. (replace_typedefs_qualified_name): Use string_file and obstack_copy0. * disasm.c (gdb_pretty_print_insn): Use string_file. (gdb_disassembly): Adjust reference the null_stream global. (do_ui_file_delete): Delete. (gdb_insn_length): Use null_stream. * dummy-frame.c (maintenance_print_dummy_frames): Use stdio_file. * dwarf2loc.c (dwarf2_compile_property_to_c) (locexpr_generate_c_location, loclist_generate_c_location): Take a 'string_file &' instead of a 'ui_file *'. * dwarf2loc.h (dwarf2_compile_property_to_c): Likewise. * dwarf2read.c (do_ui_file_peek_last): Delete. (dwarf2_compute_name): Use string_file. * event-top.c (gdb_setup_readline): Use stdio_file. * gdbarch.sh (verify_gdbarch): Use string_file. * gdbtypes.c (safe_parse_type): Use null_stream. * guile/scm-breakpoint.c (gdbscm_breakpoint_commands): Use string_file. * guile/scm-disasm.c (gdbscm_print_insn_from_port): Take a 'string_file *' instead of a 'ui_file *'. (gdbscm_arch_disassemble): Use string_file. * guile/scm-frame.c (frscm_print_frame_smob): Use string_file. * guile/scm-ports.c (class ioscm_file_port): Now a class that inherits from ui_file. (ioscm_file_port_delete, ioscm_file_port_rewind) (ioscm_file_port_put): Delete. (ioscm_file_port_write): Rename to ... (ioscm_file_port::write): ... this. Remove file_port_magic checks. (ioscm_file_port_new): Delete. (ioscm_with_output_to_port_worker): Use ioscm_file_port and ui_file_up. * guile/scm-type.c (tyscm_type_name): Use string_file. * guile/scm-value.c (vlscm_print_value_smob, gdbscm_value_print): Use string_file. * infcmd.c (print_return_value_1): Use string_file. * infrun.c (print_target_wait_results): Use string_file. * language.c (add_language): Use string_file. * location.c (explicit_to_string_internal): Use string_file. * main.c (captured_main_1): Use null_file. * maint.c (maintenance_print_architecture): Use stdio_file. * mi/mi-cmd-stack.c (list_arg_or_local): Use string_file. * mi/mi-common.h (struct mi_interp) <out, err, log, targ, event_channel>: Change type to mi_console_file pointer. * mi/mi-console.c (mi_console_file_fputs, mi_console_file_flush) (mi_console_file_delete): Delete. (struct mi_console_file): Delete. (mi_console_file_magic): Delete. (mi_console_file_new): Delete. (mi_console_file::mi_console_file): New. (mi_console_file_delete): Delete. (mi_console_file_fputs): Delete. (mi_console_file::write): New. (mi_console_raw_packet): Delete. (mi_console_file::flush): New. (mi_console_file_flush): Delete. (mi_console_set_raw): Rename to ... (mi_console_file::set_raw): ... this. * mi/mi-console.h (class mi_console_file): New class. (mi_console_file_new, mi_console_set_raw): Delete. * mi/mi-interp.c (mi_interpreter_init): Use mi_console_file. (mi_set_logging): Use delete and tee_file. Adjust. * mi/mi-main.c (output_register): Use string_file. (mi_cmd_data_evaluate_expression): Use string_file. (mi_cmd_data_read_memory): Use string_file. (mi_cmd_execute, print_variable_or_computed): Use string_file. * mi/mi-out.c (mi_ui_out::main_stream): New. (mi_ui_out::rewind): Use main_stream and string_file. (mi_ui_out::put): Use main_stream and string_file. (mi_ui_out::mi_ui_out): Remove 'stream' parameter. Allocate a 'string_file' instead. (mi_out_new): Don't allocate a mem_fileopen stream here. * mi/mi-out.h (mi_ui_out::mi_ui_out): Remove 'stream' parameter. (mi_ui_out::main_stream): Declare method. * printcmd.c (eval_command): Use string_file. * psymtab.c (maintenance_print_psymbols): Use stdio_file. * python/py-arch.c (archpy_disassemble): Use string_file. * python/py-breakpoint.c (bppy_get_commands): Use string_file. * python/py-frame.c (frapy_str): Use string_file. * python/py-framefilter.c (py_print_type, py_print_single_arg): Use string_file. * python/py-type.c (typy_str): Use string_file. * python/py-unwind.c (unwind_infopy_str): Use string_file. * python/py-value.c (valpy_str): Use string_file. * record-btrace.c (btrace_insn_history): Use string_file. * regcache.c (regcache_print): Use stdio_file. * reggroups.c (maintenance_print_reggroups): Use stdio_file. * remote.c (escape_buffer): Use string_file. * rust-lang.c (rust_get_disr_info): Use string_file. * serial.c (serial_open_ops_1): Use stdio_file. (do_serial_close): Use delete. * stack.c (print_frame_arg): Use string_file. (print_frame_args): Remove local mem_fileopen stream, not used. (print_frame): Use string_file. * symmisc.c (maintenance_print_symbols): Use stdio_file. * symtab.h (struct symbol_computed_ops) <generate_c_location>: Take a 'string_file *' instead of a 'ui_file *'. * top.c (new_ui): Use stdio_file and stderr_file. (free_ui): Use delete. (execute_command_to_string): Use string_file. (quit_confirm): Use string_file. * tracepoint.c (collection_list::append_exp): Use string_file. * tui/tui-disasm.c (tui_disassemble): Use string_file. * tui/tui-file.c: Don't include "ui-file.h". (enum streamtype, struct tui_stream): Delete. (tui_file_new, tui_file_delete, tui_fileopen, tui_sfileopen) (tui_file_isatty, tui_file_rewind, tui_file_put): Delete. (tui_file::tui_file): New method. (tui_file_fputs): Delete. (tui_file_get_strbuf): Delete. (tui_file::puts): New method. (tui_file_adjust_strbuf): Delete. (tui_file_flush): Delete. (tui_file::flush): New method. * tui/tui-file.h: Tweak intro comment. Include ui-file.h. (tui_fileopen, tui_sfileopen, tui_file_get_strbuf) (tui_file_adjust_strbuf): Delete declarations. (class tui_file): New class. * tui/tui-io.c (tui_initialize_io): Use tui_file. * tui/tui-regs.c (tui_restore_gdbout): Use delete. (tui_register_format): Use string_stream. * tui/tui-stack.c (tui_make_status_line): Use string_file. (tui_get_function_from_frame): Use string_file. * typeprint.c (type_to_string): Use string_file. * ui-file.c (struct ui_file, ui_file_magic, ui_file_new): Delete. (null_stream): New global. (ui_file_delete): Delete. (ui_file::ui_file): New. (null_file_isatty): Delete. (ui_file::~ui_file): New. (null_file_rewind): Delete. (ui_file::printf): New. (null_file_put): Delete. (null_file_flush): Delete. (ui_file::putstr): New. (null_file_write): Delete. (ui_file::putstrn): New. (null_file_read): Delete. (ui_file::putc): New. (null_file_fputs): Delete. (null_file_write_async_safe): Delete. (ui_file::vprintf): New. (null_file_delete): Delete. (null_file::write): New. (null_file_fseek): Delete. (null_file::puts): New. (ui_file_data): Delete. (null_file::write_async_safe): New. (gdb_flush, ui_file_isatty): Adjust. (ui_file_put, ui_file_rewind): Delete. (ui_file_write): Adjust. (ui_file_write_for_put): Delete. (ui_file_write_async_safe, ui_file_read): Adjust. (ui_file_fseek): Delete. (fputs_unfiltered): Adjust. (set_ui_file_flush, set_ui_file_isatty, set_ui_file_rewind) (set_ui_file_put, set_ui_file_write, set_ui_file_write_async_safe) (set_ui_file_read, set_ui_file_fputs, set_ui_file_fseek) (set_ui_file_data): Delete. (string_file::~string_file, string_file::write) (struct accumulated_ui_file, do_ui_file_xstrdup, ui_file_xstrdup) (do_ui_file_as_string, ui_file_as_string): Delete. (do_ui_file_obsavestring, ui_file_obsavestring): Delete. (struct mem_file): Delete. (mem_file_new): Delete. (stdio_file::stdio_file): New. (mem_file_delete): Delete. (stdio_file::stdio_file): New. (mem_fileopen): Delete. (stdio_file::~stdio_file): New. (mem_file_rewind): Delete. (stdio_file::set_stream): New. (mem_file_put): Delete. (stdio_file::open): New. (mem_file_write): Delete. (stdio_file_magic, struct stdio_file): Delete. (stdio_file_new, stdio_file_delete, stdio_file_flush): Delete. (stdio_file::flush): New. (stdio_file_read): Rename to ... (stdio_file::read): ... this. Adjust. (stdio_file_write): Rename to ... (stdio_file::write): ... this. Adjust. (stdio_file_write_async_safe): Rename to ... (stdio_file::write_async_safe) ... this. Adjust. (stdio_file_fputs): Rename to ... (stdio_file::puts) ... this. Adjust. (stdio_file_isatty): Delete. (stdio_file_fseek): Delete. (stdio_file::isatty): New. (stderr_file_write): Rename to ... (stderr_file::write) ... this. Adjust. (stderr_file_fputs): Rename to ... (stderr_file::puts) ... this. Adjust. (stderr_fileopen, stdio_fileopen, gdb_fopen): Delete. (stderr_file::stderr_file): New. (tee_file_magic): Delete. (struct tee_file): Delete. (tee_file::tee_file): New. (tee_file_new): Delete. (tee_file::~tee_file): New. (tee_file_delete): Delete. (tee_file_flush): Rename to ... (tee_file::flush): ... this. Adjust. (tee_file_write): Rename to ... (tee_file::write): ... this. Adjust. (tee_file::write_async_safe): New. (tee_file_fputs): Rename to ... (tee_file::puts): ... this. Adjust. (tee_file_isatty): Rename to ... (tee_file::isatty): ... this. Adjust. * ui-file.h (struct obstack, struct ui_file): Don't forward-declare. (ui_file_new, ui_file_flush_ftype, set_ui_file_flush) (ui_file_write_ftype) (set_ui_file_write, ui_file_fputs_ftype, set_ui_file_fputs) (ui_file_write_async_safe_ftype, set_ui_file_write_async_safe) (ui_file_read_ftype, set_ui_file_read, ui_file_isatty_ftype) (set_ui_file_isatty, ui_file_rewind_ftype, set_ui_file_rewind) (ui_file_put_method_ftype, ui_file_put_ftype, set_ui_file_put) (ui_file_delete_ftype, set_ui_file_data, ui_file_fseek_ftype) (set_ui_file_fseek): Delete. (ui_file_data, ui_file_delete, ui_file_rewind) (struct ui_file): New. (ui_file_up): New. (class null_file): New. (null_stream): Declare. (ui_file_write_for_put, ui_file_put): Delete. (ui_file_xstrdup, ui_file_as_string, ui_file_obsavestring): Delete. (ui_file_fseek, mem_fileopen, stdio_fileopen, stderr_fileopen) (gdb_fopen, tee_file_new): Delete. (struct string_file): New. (struct stdio_file): New. (stdio_file_up): New. (struct stderr_file): New. (class tee_file): New. * ui-out.c (ui_out::field_stream): Take a 'string_file &' instead of a 'ui_file *'. Adjust. * ui-out.h (class ui_out) <field_stream>: Likewise. * utils.c (do_ui_file_delete, make_cleanup_ui_file_delete) (null_stream): Delete. (error_stream): Take a 'string_file &' instead of a 'ui_file *'. Adjust. * utils.h (struct ui_file): Delete forward declaration.. (make_cleanup_ui_file_delete, null_stream): Delete declarations. (error_stream): Take a 'string_file &' instead of a 'ui_file *'. * varobj.c (varobj_value_get_print_value): Use string_file. * xtensa-tdep.c (xtensa_verify_config): Use string_file. * gdbarch.c: Regenerate.
2017-02-02 12:11:47 +01:00
buf.putc (space);
Explicit locations: introduce explicit locations This patch add support for explicit locations and switches many linespec locations to this new location type. This patch also converts all linespec locations entered by the user to an explicit representation internally (thus bypassing the linespec parser when resetting the breakpoint). This patch does not introduce any user-visible changes. gdb/ChangeLog: * break-catch-throw.c (re_set_exception_catchpoint): Convert linespec into explicit location. * breakpoint.c (create_overlay_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Convert linespec into explicit location. (update_static_tracepoint): Convert linespec into explicit location. * linespec.c (enum offset_relative_sign, struct line_offset): Move location.h. (struct linespec) <expression, expr_pc, source_filename> <function_name, label_name, line_offset>: Replace with ... <explicit>: ... this. <is_linespec>: New member. (PARSER_EXPLICIT): New accessor macro. (undefined_label_error): New function. (source_file_not_found_error): New function. (linespec_parse_basic): The parser result is now an explicit location. Use PARSER_EXPLICIT to access it. Use undefined_label_error. (canonicalize_linespec): Convert canonical linespec into explicit location. Move string representation of location to explicit_location_to_linespec and use it and explicit_location_to_string to save string representations of the canonical location. (create_sals_line_offset, convert_linespec_to_sals): `ls' contains an explicit location. Update all references. (convert_explicit_location_to_sals): New function. (parse_linespec): Use PARSER_EXPLICIT to access the parser result's explicit location. (linespec_state_constructor): Initialize is_linespec. Use PARSER_EXPLICIT. (linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's result. (event_location_to_sals): For linespec locations, set is_linespec. Handle explicit locations. (decode_objc): 'ls' contains an explicit location now. Update all references. (symtabs_from_filename): Use source_file_not_found_error. * location.c (struct event_location.u) <explicit>: New member. (initialize_explicit_location): New function. (initialize_event_location): Initialize explicit locations. (new_explicit_location, get_explicit_location) (get_explicit_location_const): New functions. (explicit_to_string_internal): New function; most of contents moved from canonicalize_linespec. (explicit_location_to_string): New function. (explicit_location_to_linespec): New function. (copy_event_location, delete_event_location) (event_location_to_string_const, event_location_empty_p): Handle explicit locations. * location.h (enum offset_relative_sign, struct line_offset): Move here from linespec.h. (enum event_location_type): Add EXPLICIT_LOCATION. (struct explicit_location): New structure. (explicit_location_to_string): Declare. (explicit_location_to_linespec): Declare. (new_explicit_location, get_explicit_locationp (get_explicit_location_const, initialize_explicit_location): Declare.
2015-08-12 02:09:35 +02:00
if (!as_linespec)
Eliminate make_cleanup_ui_file_delete / make ui_file a class hierarchy This patch starts from the desire to eliminate make_cleanup_ui_file_delete, but then goes beyond. It makes ui_file & friends a real C++ class hierarchy, and switches temporary ui_file-like objects to stack-based allocation. - mem_fileopen -> string_file mem_fileopen is replaced with a new string_file class that is treated as a value class created on the stack. This alone eliminates most make_cleanup_ui_file_delete calls, and, simplifies code a whole lot (diffstat shows around 1k loc dropped.) string_file's internal buffer is a std::string, thus the "string" in the name. This simplifies the implementation much, compared to mem_fileopen, which managed growing its internal buffer manually. - ui_file_as_string, ui_file_strdup, ui_file_obsavestring all gone The new string_file class has a string() method that provides direct writable access to the internal std::string buffer. This replaced ui_file_as_string, which forced a copy of the same data the stream had inside. With direct access via a writable reference, we can instead move the string out of the string_stream, avoiding deep string copying. Related, ui_file_xstrdup calls are replaced with xstrdup'ping the stream's string, and ui_file_obsavestring is replaced by obstack_copy0. With all those out of the way, getting rid of the weird ui_file_put mechanism was possible. - New ui_file::printf, ui_file::puts, etc. methods These simplify / clarify client code. I considered splitting client-code changes, like these, e.g.: - stb = mem_fileopen (); - fprintf_unfiltered (stb, "%s%s%s", - _("The valid values are:\n"), - regdesc, - _("The default is \"std\".")); + string_file stb; + stb.printf ("%s%s%s", + _("The valid values are:\n"), + regdesc, + _("The default is \"std\".")); In two steps, with the first step leaving fprintf_unfiltered (etc.) calls in place, and only afterwards do a pass to change all those to call stb.printf etc.. I didn't do that split, because (when I tried), it turned out to be pointless make-work: the first pass would have to touch the fprintf_unfiltered line anyway, to replace "stb" with "&stb". - gdb_fopen replaced with stack-based objects This avoids the need for cleanups or unique_ptr's. I.e., this: struct ui_file *file = gdb_fopen (filename, "w"); if (filename == NULL) perror_with_name (filename); cleanups = make_cleanup_ui_file_delete (file); // use file. do_cleanups (cleanups); is replaced with this: stdio_file file; if (!file.open (filename, "w")) perror_with_name (filename); // use file. - odd contorsions in null_file_write / null_file_fputs around when to call to_fputs / to_write eliminated. - Global null_stream object A few places that were allocating a ui_file in order to print to "nowhere" are adjusted to instead refer to a new 'null_stream' global stream. - TUI's tui_sfileopen eliminated. TUI's ui_file much simplified The TUI's ui_file was serving a dual purpose. It supported being used as string buffer, and supported being backed by a stdio FILE. The string buffer part is gone, replaced by using of string_file. The 'FILE *' support is now much simplified, by making the TUI's ui_file inherit from stdio_file. gdb/ChangeLog: 2017-02-02 Pedro Alves <palves@redhat.com> * ada-lang.c (type_as_string): Use string_file. * ada-valprint.c (ada_print_floating): Use string_file. * ada-varobj.c (ada_varobj_scalar_image) (ada_varobj_get_value_image): Use string_file. * aix-thread.c (aix_thread_extra_thread_info): Use string_file. * arm-tdep.c (_initialize_arm_tdep): Use string_printf. * breakpoint.c (update_inserted_breakpoint_locations) (insert_breakpoint_locations, reattach_breakpoints) (print_breakpoint_location, print_one_detail_ranged_breakpoint) (print_it_watchpoint): Use string_file. (save_breakpoints): Use stdio_file. * c-exp.y (oper): Use string_file. * cli/cli-logging.c (set_logging_redirect): Use ui_file_up and tee_file. (pop_output_files): Use delete. (handle_redirections): Use stdio_file and tee_file. * cli/cli-setshow.c (do_show_command): Use string_file. * compile/compile-c-support.c (c_compute_program): Use string_file. * compile/compile-c-symbols.c (generate_vla_size): Take a 'string_file &' instead of a 'ui_file *'. (generate_c_for_for_one_variable): Take a 'string_file &' instead of a 'ui_file *'. Use string_file. (generate_c_for_variable_locations): Take a 'string_file &' instead of a 'ui_file *'. * compile/compile-internal.h (generate_c_for_for_one_variable): Take a 'string_file &' instead of a 'ui_file *'. * compile/compile-loc2c.c (push, pushf, unary, binary) (print_label, pushf_register_address, pushf_register) (do_compile_dwarf_expr_to_c): Take a 'string_file &' instead of a 'ui_file *'. Adjust. * compile/compile.c (compile_to_object): Use string_file. * compile/compile.h (compile_dwarf_expr_to_c) (compile_dwarf_bounds_to_c): Take a 'string_file &' instead of a 'ui_file *'. * cp-support.c (inspect_type): Use string_file and obstack_copy0. (replace_typedefs_qualified_name): Use string_file and obstack_copy0. * disasm.c (gdb_pretty_print_insn): Use string_file. (gdb_disassembly): Adjust reference the null_stream global. (do_ui_file_delete): Delete. (gdb_insn_length): Use null_stream. * dummy-frame.c (maintenance_print_dummy_frames): Use stdio_file. * dwarf2loc.c (dwarf2_compile_property_to_c) (locexpr_generate_c_location, loclist_generate_c_location): Take a 'string_file &' instead of a 'ui_file *'. * dwarf2loc.h (dwarf2_compile_property_to_c): Likewise. * dwarf2read.c (do_ui_file_peek_last): Delete. (dwarf2_compute_name): Use string_file. * event-top.c (gdb_setup_readline): Use stdio_file. * gdbarch.sh (verify_gdbarch): Use string_file. * gdbtypes.c (safe_parse_type): Use null_stream. * guile/scm-breakpoint.c (gdbscm_breakpoint_commands): Use string_file. * guile/scm-disasm.c (gdbscm_print_insn_from_port): Take a 'string_file *' instead of a 'ui_file *'. (gdbscm_arch_disassemble): Use string_file. * guile/scm-frame.c (frscm_print_frame_smob): Use string_file. * guile/scm-ports.c (class ioscm_file_port): Now a class that inherits from ui_file. (ioscm_file_port_delete, ioscm_file_port_rewind) (ioscm_file_port_put): Delete. (ioscm_file_port_write): Rename to ... (ioscm_file_port::write): ... this. Remove file_port_magic checks. (ioscm_file_port_new): Delete. (ioscm_with_output_to_port_worker): Use ioscm_file_port and ui_file_up. * guile/scm-type.c (tyscm_type_name): Use string_file. * guile/scm-value.c (vlscm_print_value_smob, gdbscm_value_print): Use string_file. * infcmd.c (print_return_value_1): Use string_file. * infrun.c (print_target_wait_results): Use string_file. * language.c (add_language): Use string_file. * location.c (explicit_to_string_internal): Use string_file. * main.c (captured_main_1): Use null_file. * maint.c (maintenance_print_architecture): Use stdio_file. * mi/mi-cmd-stack.c (list_arg_or_local): Use string_file. * mi/mi-common.h (struct mi_interp) <out, err, log, targ, event_channel>: Change type to mi_console_file pointer. * mi/mi-console.c (mi_console_file_fputs, mi_console_file_flush) (mi_console_file_delete): Delete. (struct mi_console_file): Delete. (mi_console_file_magic): Delete. (mi_console_file_new): Delete. (mi_console_file::mi_console_file): New. (mi_console_file_delete): Delete. (mi_console_file_fputs): Delete. (mi_console_file::write): New. (mi_console_raw_packet): Delete. (mi_console_file::flush): New. (mi_console_file_flush): Delete. (mi_console_set_raw): Rename to ... (mi_console_file::set_raw): ... this. * mi/mi-console.h (class mi_console_file): New class. (mi_console_file_new, mi_console_set_raw): Delete. * mi/mi-interp.c (mi_interpreter_init): Use mi_console_file. (mi_set_logging): Use delete and tee_file. Adjust. * mi/mi-main.c (output_register): Use string_file. (mi_cmd_data_evaluate_expression): Use string_file. (mi_cmd_data_read_memory): Use string_file. (mi_cmd_execute, print_variable_or_computed): Use string_file. * mi/mi-out.c (mi_ui_out::main_stream): New. (mi_ui_out::rewind): Use main_stream and string_file. (mi_ui_out::put): Use main_stream and string_file. (mi_ui_out::mi_ui_out): Remove 'stream' parameter. Allocate a 'string_file' instead. (mi_out_new): Don't allocate a mem_fileopen stream here. * mi/mi-out.h (mi_ui_out::mi_ui_out): Remove 'stream' parameter. (mi_ui_out::main_stream): Declare method. * printcmd.c (eval_command): Use string_file. * psymtab.c (maintenance_print_psymbols): Use stdio_file. * python/py-arch.c (archpy_disassemble): Use string_file. * python/py-breakpoint.c (bppy_get_commands): Use string_file. * python/py-frame.c (frapy_str): Use string_file. * python/py-framefilter.c (py_print_type, py_print_single_arg): Use string_file. * python/py-type.c (typy_str): Use string_file. * python/py-unwind.c (unwind_infopy_str): Use string_file. * python/py-value.c (valpy_str): Use string_file. * record-btrace.c (btrace_insn_history): Use string_file. * regcache.c (regcache_print): Use stdio_file. * reggroups.c (maintenance_print_reggroups): Use stdio_file. * remote.c (escape_buffer): Use string_file. * rust-lang.c (rust_get_disr_info): Use string_file. * serial.c (serial_open_ops_1): Use stdio_file. (do_serial_close): Use delete. * stack.c (print_frame_arg): Use string_file. (print_frame_args): Remove local mem_fileopen stream, not used. (print_frame): Use string_file. * symmisc.c (maintenance_print_symbols): Use stdio_file. * symtab.h (struct symbol_computed_ops) <generate_c_location>: Take a 'string_file *' instead of a 'ui_file *'. * top.c (new_ui): Use stdio_file and stderr_file. (free_ui): Use delete. (execute_command_to_string): Use string_file. (quit_confirm): Use string_file. * tracepoint.c (collection_list::append_exp): Use string_file. * tui/tui-disasm.c (tui_disassemble): Use string_file. * tui/tui-file.c: Don't include "ui-file.h". (enum streamtype, struct tui_stream): Delete. (tui_file_new, tui_file_delete, tui_fileopen, tui_sfileopen) (tui_file_isatty, tui_file_rewind, tui_file_put): Delete. (tui_file::tui_file): New method. (tui_file_fputs): Delete. (tui_file_get_strbuf): Delete. (tui_file::puts): New method. (tui_file_adjust_strbuf): Delete. (tui_file_flush): Delete. (tui_file::flush): New method. * tui/tui-file.h: Tweak intro comment. Include ui-file.h. (tui_fileopen, tui_sfileopen, tui_file_get_strbuf) (tui_file_adjust_strbuf): Delete declarations. (class tui_file): New class. * tui/tui-io.c (tui_initialize_io): Use tui_file. * tui/tui-regs.c (tui_restore_gdbout): Use delete. (tui_register_format): Use string_stream. * tui/tui-stack.c (tui_make_status_line): Use string_file. (tui_get_function_from_frame): Use string_file. * typeprint.c (type_to_string): Use string_file. * ui-file.c (struct ui_file, ui_file_magic, ui_file_new): Delete. (null_stream): New global. (ui_file_delete): Delete. (ui_file::ui_file): New. (null_file_isatty): Delete. (ui_file::~ui_file): New. (null_file_rewind): Delete. (ui_file::printf): New. (null_file_put): Delete. (null_file_flush): Delete. (ui_file::putstr): New. (null_file_write): Delete. (ui_file::putstrn): New. (null_file_read): Delete. (ui_file::putc): New. (null_file_fputs): Delete. (null_file_write_async_safe): Delete. (ui_file::vprintf): New. (null_file_delete): Delete. (null_file::write): New. (null_file_fseek): Delete. (null_file::puts): New. (ui_file_data): Delete. (null_file::write_async_safe): New. (gdb_flush, ui_file_isatty): Adjust. (ui_file_put, ui_file_rewind): Delete. (ui_file_write): Adjust. (ui_file_write_for_put): Delete. (ui_file_write_async_safe, ui_file_read): Adjust. (ui_file_fseek): Delete. (fputs_unfiltered): Adjust. (set_ui_file_flush, set_ui_file_isatty, set_ui_file_rewind) (set_ui_file_put, set_ui_file_write, set_ui_file_write_async_safe) (set_ui_file_read, set_ui_file_fputs, set_ui_file_fseek) (set_ui_file_data): Delete. (string_file::~string_file, string_file::write) (struct accumulated_ui_file, do_ui_file_xstrdup, ui_file_xstrdup) (do_ui_file_as_string, ui_file_as_string): Delete. (do_ui_file_obsavestring, ui_file_obsavestring): Delete. (struct mem_file): Delete. (mem_file_new): Delete. (stdio_file::stdio_file): New. (mem_file_delete): Delete. (stdio_file::stdio_file): New. (mem_fileopen): Delete. (stdio_file::~stdio_file): New. (mem_file_rewind): Delete. (stdio_file::set_stream): New. (mem_file_put): Delete. (stdio_file::open): New. (mem_file_write): Delete. (stdio_file_magic, struct stdio_file): Delete. (stdio_file_new, stdio_file_delete, stdio_file_flush): Delete. (stdio_file::flush): New. (stdio_file_read): Rename to ... (stdio_file::read): ... this. Adjust. (stdio_file_write): Rename to ... (stdio_file::write): ... this. Adjust. (stdio_file_write_async_safe): Rename to ... (stdio_file::write_async_safe) ... this. Adjust. (stdio_file_fputs): Rename to ... (stdio_file::puts) ... this. Adjust. (stdio_file_isatty): Delete. (stdio_file_fseek): Delete. (stdio_file::isatty): New. (stderr_file_write): Rename to ... (stderr_file::write) ... this. Adjust. (stderr_file_fputs): Rename to ... (stderr_file::puts) ... this. Adjust. (stderr_fileopen, stdio_fileopen, gdb_fopen): Delete. (stderr_file::stderr_file): New. (tee_file_magic): Delete. (struct tee_file): Delete. (tee_file::tee_file): New. (tee_file_new): Delete. (tee_file::~tee_file): New. (tee_file_delete): Delete. (tee_file_flush): Rename to ... (tee_file::flush): ... this. Adjust. (tee_file_write): Rename to ... (tee_file::write): ... this. Adjust. (tee_file::write_async_safe): New. (tee_file_fputs): Rename to ... (tee_file::puts): ... this. Adjust. (tee_file_isatty): Rename to ... (tee_file::isatty): ... this. Adjust. * ui-file.h (struct obstack, struct ui_file): Don't forward-declare. (ui_file_new, ui_file_flush_ftype, set_ui_file_flush) (ui_file_write_ftype) (set_ui_file_write, ui_file_fputs_ftype, set_ui_file_fputs) (ui_file_write_async_safe_ftype, set_ui_file_write_async_safe) (ui_file_read_ftype, set_ui_file_read, ui_file_isatty_ftype) (set_ui_file_isatty, ui_file_rewind_ftype, set_ui_file_rewind) (ui_file_put_method_ftype, ui_file_put_ftype, set_ui_file_put) (ui_file_delete_ftype, set_ui_file_data, ui_file_fseek_ftype) (set_ui_file_fseek): Delete. (ui_file_data, ui_file_delete, ui_file_rewind) (struct ui_file): New. (ui_file_up): New. (class null_file): New. (null_stream): Declare. (ui_file_write_for_put, ui_file_put): Delete. (ui_file_xstrdup, ui_file_as_string, ui_file_obsavestring): Delete. (ui_file_fseek, mem_fileopen, stdio_fileopen, stderr_fileopen) (gdb_fopen, tee_file_new): Delete. (struct string_file): New. (struct stdio_file): New. (stdio_file_up): New. (struct stderr_file): New. (class tee_file): New. * ui-out.c (ui_out::field_stream): Take a 'string_file &' instead of a 'ui_file *'. Adjust. * ui-out.h (class ui_out) <field_stream>: Likewise. * utils.c (do_ui_file_delete, make_cleanup_ui_file_delete) (null_stream): Delete. (error_stream): Take a 'string_file &' instead of a 'ui_file *'. Adjust. * utils.h (struct ui_file): Delete forward declaration.. (make_cleanup_ui_file_delete, null_stream): Delete declarations. (error_stream): Take a 'string_file &' instead of a 'ui_file *'. * varobj.c (varobj_value_get_print_value): Use string_file. * xtensa-tdep.c (xtensa_verify_config): Use string_file. * gdbarch.c: Regenerate.
2017-02-02 12:11:47 +01:00
buf.puts ("-line ");
buf.printf ("%s%d",
(explicit_loc->line_offset.sign == LINE_OFFSET_NONE ? ""
: (explicit_loc->line_offset.sign
== LINE_OFFSET_PLUS ? "+" : "-")),
explicit_loc->line_offset.offset);
Explicit locations: introduce explicit locations This patch add support for explicit locations and switches many linespec locations to this new location type. This patch also converts all linespec locations entered by the user to an explicit representation internally (thus bypassing the linespec parser when resetting the breakpoint). This patch does not introduce any user-visible changes. gdb/ChangeLog: * break-catch-throw.c (re_set_exception_catchpoint): Convert linespec into explicit location. * breakpoint.c (create_overlay_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Convert linespec into explicit location. (update_static_tracepoint): Convert linespec into explicit location. * linespec.c (enum offset_relative_sign, struct line_offset): Move location.h. (struct linespec) <expression, expr_pc, source_filename> <function_name, label_name, line_offset>: Replace with ... <explicit>: ... this. <is_linespec>: New member. (PARSER_EXPLICIT): New accessor macro. (undefined_label_error): New function. (source_file_not_found_error): New function. (linespec_parse_basic): The parser result is now an explicit location. Use PARSER_EXPLICIT to access it. Use undefined_label_error. (canonicalize_linespec): Convert canonical linespec into explicit location. Move string representation of location to explicit_location_to_linespec and use it and explicit_location_to_string to save string representations of the canonical location. (create_sals_line_offset, convert_linespec_to_sals): `ls' contains an explicit location. Update all references. (convert_explicit_location_to_sals): New function. (parse_linespec): Use PARSER_EXPLICIT to access the parser result's explicit location. (linespec_state_constructor): Initialize is_linespec. Use PARSER_EXPLICIT. (linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's result. (event_location_to_sals): For linespec locations, set is_linespec. Handle explicit locations. (decode_objc): 'ls' contains an explicit location now. Update all references. (symtabs_from_filename): Use source_file_not_found_error. * location.c (struct event_location.u) <explicit>: New member. (initialize_explicit_location): New function. (initialize_event_location): Initialize explicit locations. (new_explicit_location, get_explicit_location) (get_explicit_location_const): New functions. (explicit_to_string_internal): New function; most of contents moved from canonicalize_linespec. (explicit_location_to_string): New function. (explicit_location_to_linespec): New function. (copy_event_location, delete_event_location) (event_location_to_string_const, event_location_empty_p): Handle explicit locations. * location.h (enum offset_relative_sign, struct line_offset): Move here from linespec.h. (enum event_location_type): Add EXPLICIT_LOCATION. (struct explicit_location): New structure. (explicit_location_to_string): Declare. (explicit_location_to_linespec): Declare. (new_explicit_location, get_explicit_locationp (get_explicit_location_const, initialize_explicit_location): Declare.
2015-08-12 02:09:35 +02:00
}
Eliminate make_cleanup_ui_file_delete / make ui_file a class hierarchy This patch starts from the desire to eliminate make_cleanup_ui_file_delete, but then goes beyond. It makes ui_file & friends a real C++ class hierarchy, and switches temporary ui_file-like objects to stack-based allocation. - mem_fileopen -> string_file mem_fileopen is replaced with a new string_file class that is treated as a value class created on the stack. This alone eliminates most make_cleanup_ui_file_delete calls, and, simplifies code a whole lot (diffstat shows around 1k loc dropped.) string_file's internal buffer is a std::string, thus the "string" in the name. This simplifies the implementation much, compared to mem_fileopen, which managed growing its internal buffer manually. - ui_file_as_string, ui_file_strdup, ui_file_obsavestring all gone The new string_file class has a string() method that provides direct writable access to the internal std::string buffer. This replaced ui_file_as_string, which forced a copy of the same data the stream had inside. With direct access via a writable reference, we can instead move the string out of the string_stream, avoiding deep string copying. Related, ui_file_xstrdup calls are replaced with xstrdup'ping the stream's string, and ui_file_obsavestring is replaced by obstack_copy0. With all those out of the way, getting rid of the weird ui_file_put mechanism was possible. - New ui_file::printf, ui_file::puts, etc. methods These simplify / clarify client code. I considered splitting client-code changes, like these, e.g.: - stb = mem_fileopen (); - fprintf_unfiltered (stb, "%s%s%s", - _("The valid values are:\n"), - regdesc, - _("The default is \"std\".")); + string_file stb; + stb.printf ("%s%s%s", + _("The valid values are:\n"), + regdesc, + _("The default is \"std\".")); In two steps, with the first step leaving fprintf_unfiltered (etc.) calls in place, and only afterwards do a pass to change all those to call stb.printf etc.. I didn't do that split, because (when I tried), it turned out to be pointless make-work: the first pass would have to touch the fprintf_unfiltered line anyway, to replace "stb" with "&stb". - gdb_fopen replaced with stack-based objects This avoids the need for cleanups or unique_ptr's. I.e., this: struct ui_file *file = gdb_fopen (filename, "w"); if (filename == NULL) perror_with_name (filename); cleanups = make_cleanup_ui_file_delete (file); // use file. do_cleanups (cleanups); is replaced with this: stdio_file file; if (!file.open (filename, "w")) perror_with_name (filename); // use file. - odd contorsions in null_file_write / null_file_fputs around when to call to_fputs / to_write eliminated. - Global null_stream object A few places that were allocating a ui_file in order to print to "nowhere" are adjusted to instead refer to a new 'null_stream' global stream. - TUI's tui_sfileopen eliminated. TUI's ui_file much simplified The TUI's ui_file was serving a dual purpose. It supported being used as string buffer, and supported being backed by a stdio FILE. The string buffer part is gone, replaced by using of string_file. The 'FILE *' support is now much simplified, by making the TUI's ui_file inherit from stdio_file. gdb/ChangeLog: 2017-02-02 Pedro Alves <palves@redhat.com> * ada-lang.c (type_as_string): Use string_file. * ada-valprint.c (ada_print_floating): Use string_file. * ada-varobj.c (ada_varobj_scalar_image) (ada_varobj_get_value_image): Use string_file. * aix-thread.c (aix_thread_extra_thread_info): Use string_file. * arm-tdep.c (_initialize_arm_tdep): Use string_printf. * breakpoint.c (update_inserted_breakpoint_locations) (insert_breakpoint_locations, reattach_breakpoints) (print_breakpoint_location, print_one_detail_ranged_breakpoint) (print_it_watchpoint): Use string_file. (save_breakpoints): Use stdio_file. * c-exp.y (oper): Use string_file. * cli/cli-logging.c (set_logging_redirect): Use ui_file_up and tee_file. (pop_output_files): Use delete. (handle_redirections): Use stdio_file and tee_file. * cli/cli-setshow.c (do_show_command): Use string_file. * compile/compile-c-support.c (c_compute_program): Use string_file. * compile/compile-c-symbols.c (generate_vla_size): Take a 'string_file &' instead of a 'ui_file *'. (generate_c_for_for_one_variable): Take a 'string_file &' instead of a 'ui_file *'. Use string_file. (generate_c_for_variable_locations): Take a 'string_file &' instead of a 'ui_file *'. * compile/compile-internal.h (generate_c_for_for_one_variable): Take a 'string_file &' instead of a 'ui_file *'. * compile/compile-loc2c.c (push, pushf, unary, binary) (print_label, pushf_register_address, pushf_register) (do_compile_dwarf_expr_to_c): Take a 'string_file &' instead of a 'ui_file *'. Adjust. * compile/compile.c (compile_to_object): Use string_file. * compile/compile.h (compile_dwarf_expr_to_c) (compile_dwarf_bounds_to_c): Take a 'string_file &' instead of a 'ui_file *'. * cp-support.c (inspect_type): Use string_file and obstack_copy0. (replace_typedefs_qualified_name): Use string_file and obstack_copy0. * disasm.c (gdb_pretty_print_insn): Use string_file. (gdb_disassembly): Adjust reference the null_stream global. (do_ui_file_delete): Delete. (gdb_insn_length): Use null_stream. * dummy-frame.c (maintenance_print_dummy_frames): Use stdio_file. * dwarf2loc.c (dwarf2_compile_property_to_c) (locexpr_generate_c_location, loclist_generate_c_location): Take a 'string_file &' instead of a 'ui_file *'. * dwarf2loc.h (dwarf2_compile_property_to_c): Likewise. * dwarf2read.c (do_ui_file_peek_last): Delete. (dwarf2_compute_name): Use string_file. * event-top.c (gdb_setup_readline): Use stdio_file. * gdbarch.sh (verify_gdbarch): Use string_file. * gdbtypes.c (safe_parse_type): Use null_stream. * guile/scm-breakpoint.c (gdbscm_breakpoint_commands): Use string_file. * guile/scm-disasm.c (gdbscm_print_insn_from_port): Take a 'string_file *' instead of a 'ui_file *'. (gdbscm_arch_disassemble): Use string_file. * guile/scm-frame.c (frscm_print_frame_smob): Use string_file. * guile/scm-ports.c (class ioscm_file_port): Now a class that inherits from ui_file. (ioscm_file_port_delete, ioscm_file_port_rewind) (ioscm_file_port_put): Delete. (ioscm_file_port_write): Rename to ... (ioscm_file_port::write): ... this. Remove file_port_magic checks. (ioscm_file_port_new): Delete. (ioscm_with_output_to_port_worker): Use ioscm_file_port and ui_file_up. * guile/scm-type.c (tyscm_type_name): Use string_file. * guile/scm-value.c (vlscm_print_value_smob, gdbscm_value_print): Use string_file. * infcmd.c (print_return_value_1): Use string_file. * infrun.c (print_target_wait_results): Use string_file. * language.c (add_language): Use string_file. * location.c (explicit_to_string_internal): Use string_file. * main.c (captured_main_1): Use null_file. * maint.c (maintenance_print_architecture): Use stdio_file. * mi/mi-cmd-stack.c (list_arg_or_local): Use string_file. * mi/mi-common.h (struct mi_interp) <out, err, log, targ, event_channel>: Change type to mi_console_file pointer. * mi/mi-console.c (mi_console_file_fputs, mi_console_file_flush) (mi_console_file_delete): Delete. (struct mi_console_file): Delete. (mi_console_file_magic): Delete. (mi_console_file_new): Delete. (mi_console_file::mi_console_file): New. (mi_console_file_delete): Delete. (mi_console_file_fputs): Delete. (mi_console_file::write): New. (mi_console_raw_packet): Delete. (mi_console_file::flush): New. (mi_console_file_flush): Delete. (mi_console_set_raw): Rename to ... (mi_console_file::set_raw): ... this. * mi/mi-console.h (class mi_console_file): New class. (mi_console_file_new, mi_console_set_raw): Delete. * mi/mi-interp.c (mi_interpreter_init): Use mi_console_file. (mi_set_logging): Use delete and tee_file. Adjust. * mi/mi-main.c (output_register): Use string_file. (mi_cmd_data_evaluate_expression): Use string_file. (mi_cmd_data_read_memory): Use string_file. (mi_cmd_execute, print_variable_or_computed): Use string_file. * mi/mi-out.c (mi_ui_out::main_stream): New. (mi_ui_out::rewind): Use main_stream and string_file. (mi_ui_out::put): Use main_stream and string_file. (mi_ui_out::mi_ui_out): Remove 'stream' parameter. Allocate a 'string_file' instead. (mi_out_new): Don't allocate a mem_fileopen stream here. * mi/mi-out.h (mi_ui_out::mi_ui_out): Remove 'stream' parameter. (mi_ui_out::main_stream): Declare method. * printcmd.c (eval_command): Use string_file. * psymtab.c (maintenance_print_psymbols): Use stdio_file. * python/py-arch.c (archpy_disassemble): Use string_file. * python/py-breakpoint.c (bppy_get_commands): Use string_file. * python/py-frame.c (frapy_str): Use string_file. * python/py-framefilter.c (py_print_type, py_print_single_arg): Use string_file. * python/py-type.c (typy_str): Use string_file. * python/py-unwind.c (unwind_infopy_str): Use string_file. * python/py-value.c (valpy_str): Use string_file. * record-btrace.c (btrace_insn_history): Use string_file. * regcache.c (regcache_print): Use stdio_file. * reggroups.c (maintenance_print_reggroups): Use stdio_file. * remote.c (escape_buffer): Use string_file. * rust-lang.c (rust_get_disr_info): Use string_file. * serial.c (serial_open_ops_1): Use stdio_file. (do_serial_close): Use delete. * stack.c (print_frame_arg): Use string_file. (print_frame_args): Remove local mem_fileopen stream, not used. (print_frame): Use string_file. * symmisc.c (maintenance_print_symbols): Use stdio_file. * symtab.h (struct symbol_computed_ops) <generate_c_location>: Take a 'string_file *' instead of a 'ui_file *'. * top.c (new_ui): Use stdio_file and stderr_file. (free_ui): Use delete. (execute_command_to_string): Use string_file. (quit_confirm): Use string_file. * tracepoint.c (collection_list::append_exp): Use string_file. * tui/tui-disasm.c (tui_disassemble): Use string_file. * tui/tui-file.c: Don't include "ui-file.h". (enum streamtype, struct tui_stream): Delete. (tui_file_new, tui_file_delete, tui_fileopen, tui_sfileopen) (tui_file_isatty, tui_file_rewind, tui_file_put): Delete. (tui_file::tui_file): New method. (tui_file_fputs): Delete. (tui_file_get_strbuf): Delete. (tui_file::puts): New method. (tui_file_adjust_strbuf): Delete. (tui_file_flush): Delete. (tui_file::flush): New method. * tui/tui-file.h: Tweak intro comment. Include ui-file.h. (tui_fileopen, tui_sfileopen, tui_file_get_strbuf) (tui_file_adjust_strbuf): Delete declarations. (class tui_file): New class. * tui/tui-io.c (tui_initialize_io): Use tui_file. * tui/tui-regs.c (tui_restore_gdbout): Use delete. (tui_register_format): Use string_stream. * tui/tui-stack.c (tui_make_status_line): Use string_file. (tui_get_function_from_frame): Use string_file. * typeprint.c (type_to_string): Use string_file. * ui-file.c (struct ui_file, ui_file_magic, ui_file_new): Delete. (null_stream): New global. (ui_file_delete): Delete. (ui_file::ui_file): New. (null_file_isatty): Delete. (ui_file::~ui_file): New. (null_file_rewind): Delete. (ui_file::printf): New. (null_file_put): Delete. (null_file_flush): Delete. (ui_file::putstr): New. (null_file_write): Delete. (ui_file::putstrn): New. (null_file_read): Delete. (ui_file::putc): New. (null_file_fputs): Delete. (null_file_write_async_safe): Delete. (ui_file::vprintf): New. (null_file_delete): Delete. (null_file::write): New. (null_file_fseek): Delete. (null_file::puts): New. (ui_file_data): Delete. (null_file::write_async_safe): New. (gdb_flush, ui_file_isatty): Adjust. (ui_file_put, ui_file_rewind): Delete. (ui_file_write): Adjust. (ui_file_write_for_put): Delete. (ui_file_write_async_safe, ui_file_read): Adjust. (ui_file_fseek): Delete. (fputs_unfiltered): Adjust. (set_ui_file_flush, set_ui_file_isatty, set_ui_file_rewind) (set_ui_file_put, set_ui_file_write, set_ui_file_write_async_safe) (set_ui_file_read, set_ui_file_fputs, set_ui_file_fseek) (set_ui_file_data): Delete. (string_file::~string_file, string_file::write) (struct accumulated_ui_file, do_ui_file_xstrdup, ui_file_xstrdup) (do_ui_file_as_string, ui_file_as_string): Delete. (do_ui_file_obsavestring, ui_file_obsavestring): Delete. (struct mem_file): Delete. (mem_file_new): Delete. (stdio_file::stdio_file): New. (mem_file_delete): Delete. (stdio_file::stdio_file): New. (mem_fileopen): Delete. (stdio_file::~stdio_file): New. (mem_file_rewind): Delete. (stdio_file::set_stream): New. (mem_file_put): Delete. (stdio_file::open): New. (mem_file_write): Delete. (stdio_file_magic, struct stdio_file): Delete. (stdio_file_new, stdio_file_delete, stdio_file_flush): Delete. (stdio_file::flush): New. (stdio_file_read): Rename to ... (stdio_file::read): ... this. Adjust. (stdio_file_write): Rename to ... (stdio_file::write): ... this. Adjust. (stdio_file_write_async_safe): Rename to ... (stdio_file::write_async_safe) ... this. Adjust. (stdio_file_fputs): Rename to ... (stdio_file::puts) ... this. Adjust. (stdio_file_isatty): Delete. (stdio_file_fseek): Delete. (stdio_file::isatty): New. (stderr_file_write): Rename to ... (stderr_file::write) ... this. Adjust. (stderr_file_fputs): Rename to ... (stderr_file::puts) ... this. Adjust. (stderr_fileopen, stdio_fileopen, gdb_fopen): Delete. (stderr_file::stderr_file): New. (tee_file_magic): Delete. (struct tee_file): Delete. (tee_file::tee_file): New. (tee_file_new): Delete. (tee_file::~tee_file): New. (tee_file_delete): Delete. (tee_file_flush): Rename to ... (tee_file::flush): ... this. Adjust. (tee_file_write): Rename to ... (tee_file::write): ... this. Adjust. (tee_file::write_async_safe): New. (tee_file_fputs): Rename to ... (tee_file::puts): ... this. Adjust. (tee_file_isatty): Rename to ... (tee_file::isatty): ... this. Adjust. * ui-file.h (struct obstack, struct ui_file): Don't forward-declare. (ui_file_new, ui_file_flush_ftype, set_ui_file_flush) (ui_file_write_ftype) (set_ui_file_write, ui_file_fputs_ftype, set_ui_file_fputs) (ui_file_write_async_safe_ftype, set_ui_file_write_async_safe) (ui_file_read_ftype, set_ui_file_read, ui_file_isatty_ftype) (set_ui_file_isatty, ui_file_rewind_ftype, set_ui_file_rewind) (ui_file_put_method_ftype, ui_file_put_ftype, set_ui_file_put) (ui_file_delete_ftype, set_ui_file_data, ui_file_fseek_ftype) (set_ui_file_fseek): Delete. (ui_file_data, ui_file_delete, ui_file_rewind) (struct ui_file): New. (ui_file_up): New. (class null_file): New. (null_stream): Declare. (ui_file_write_for_put, ui_file_put): Delete. (ui_file_xstrdup, ui_file_as_string, ui_file_obsavestring): Delete. (ui_file_fseek, mem_fileopen, stdio_fileopen, stderr_fileopen) (gdb_fopen, tee_file_new): Delete. (struct string_file): New. (struct stdio_file): New. (stdio_file_up): New. (struct stderr_file): New. (class tee_file): New. * ui-out.c (ui_out::field_stream): Take a 'string_file &' instead of a 'ui_file *'. Adjust. * ui-out.h (class ui_out) <field_stream>: Likewise. * utils.c (do_ui_file_delete, make_cleanup_ui_file_delete) (null_stream): Delete. (error_stream): Take a 'string_file &' instead of a 'ui_file *'. Adjust. * utils.h (struct ui_file): Delete forward declaration.. (make_cleanup_ui_file_delete, null_stream): Delete declarations. (error_stream): Take a 'string_file &' instead of a 'ui_file *'. * varobj.c (varobj_value_get_print_value): Use string_file. * xtensa-tdep.c (xtensa_verify_config): Use string_file. * gdbarch.c: Regenerate.
2017-02-02 12:11:47 +01:00
return xstrdup (buf.c_str ());
Explicit locations: introduce explicit locations This patch add support for explicit locations and switches many linespec locations to this new location type. This patch also converts all linespec locations entered by the user to an explicit representation internally (thus bypassing the linespec parser when resetting the breakpoint). This patch does not introduce any user-visible changes. gdb/ChangeLog: * break-catch-throw.c (re_set_exception_catchpoint): Convert linespec into explicit location. * breakpoint.c (create_overlay_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Convert linespec into explicit location. (update_static_tracepoint): Convert linespec into explicit location. * linespec.c (enum offset_relative_sign, struct line_offset): Move location.h. (struct linespec) <expression, expr_pc, source_filename> <function_name, label_name, line_offset>: Replace with ... <explicit>: ... this. <is_linespec>: New member. (PARSER_EXPLICIT): New accessor macro. (undefined_label_error): New function. (source_file_not_found_error): New function. (linespec_parse_basic): The parser result is now an explicit location. Use PARSER_EXPLICIT to access it. Use undefined_label_error. (canonicalize_linespec): Convert canonical linespec into explicit location. Move string representation of location to explicit_location_to_linespec and use it and explicit_location_to_string to save string representations of the canonical location. (create_sals_line_offset, convert_linespec_to_sals): `ls' contains an explicit location. Update all references. (convert_explicit_location_to_sals): New function. (parse_linespec): Use PARSER_EXPLICIT to access the parser result's explicit location. (linespec_state_constructor): Initialize is_linespec. Use PARSER_EXPLICIT. (linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's result. (event_location_to_sals): For linespec locations, set is_linespec. Handle explicit locations. (decode_objc): 'ls' contains an explicit location now. Update all references. (symtabs_from_filename): Use source_file_not_found_error. * location.c (struct event_location.u) <explicit>: New member. (initialize_explicit_location): New function. (initialize_event_location): Initialize explicit locations. (new_explicit_location, get_explicit_location) (get_explicit_location_const): New functions. (explicit_to_string_internal): New function; most of contents moved from canonicalize_linespec. (explicit_location_to_string): New function. (explicit_location_to_linespec): New function. (copy_event_location, delete_event_location) (event_location_to_string_const, event_location_empty_p): Handle explicit locations. * location.h (enum offset_relative_sign, struct line_offset): Move here from linespec.h. (enum event_location_type): Add EXPLICIT_LOCATION. (struct explicit_location): New structure. (explicit_location_to_string): Declare. (explicit_location_to_linespec): Declare. (new_explicit_location, get_explicit_locationp (get_explicit_location_const, initialize_explicit_location): Declare.
2015-08-12 02:09:35 +02:00
}
/* See description in location.h. */
char *
Mass rename `explicit' -> `explicit_loc'. BuildBot reminded me that "explicit" is a reserved keyword in C++. This patch simply renames all the (illegal) uses of "explicit". This should fix the build errors with --enable-build-with-cxx bots. gdb/ChangeLog * break-catch-throw.c (re_set_exception_catchpoint) Rename reserved C++ keyword "explicit" to "explicit_loc". * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint, update_static_tracepoint): Rename reserved C++ keyword "explicit" to "explicit_loc". * completer.c (collect_explicit_location_matches) (explicit_location_completer): Rename reserved C++ keyword "explicit" to "explicit_loc". * linespec.c (struct linespec) <explicit>: Rename to "explicit_loc". (canonicalize_linespec, create_sals_line_offset) (convert_linespec_to_sals, convert_explicit_location_to_sals) (event_location_to_sals, decode_objc): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.c (struct event_location) <explicit>: Rename to "explicit_loc". (initialize_explicit_location, new_explicit_location) (explicit_location_to_string_internal, explicit_location_to_linespec): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.h (explicit_location_to_string) (explicit_location_to_linespec, initialize_explicit_location) (new_explicit_location): Rename reserved C++ keyword "explicit" to "explicit_loc". * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Rename reserved C++ keyword "explicit" to "explicit_loc".
2015-08-13 18:48:12 +02:00
explicit_location_to_string (const struct explicit_location *explicit_loc)
Explicit locations: introduce explicit locations This patch add support for explicit locations and switches many linespec locations to this new location type. This patch also converts all linespec locations entered by the user to an explicit representation internally (thus bypassing the linespec parser when resetting the breakpoint). This patch does not introduce any user-visible changes. gdb/ChangeLog: * break-catch-throw.c (re_set_exception_catchpoint): Convert linespec into explicit location. * breakpoint.c (create_overlay_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Convert linespec into explicit location. (update_static_tracepoint): Convert linespec into explicit location. * linespec.c (enum offset_relative_sign, struct line_offset): Move location.h. (struct linespec) <expression, expr_pc, source_filename> <function_name, label_name, line_offset>: Replace with ... <explicit>: ... this. <is_linespec>: New member. (PARSER_EXPLICIT): New accessor macro. (undefined_label_error): New function. (source_file_not_found_error): New function. (linespec_parse_basic): The parser result is now an explicit location. Use PARSER_EXPLICIT to access it. Use undefined_label_error. (canonicalize_linespec): Convert canonical linespec into explicit location. Move string representation of location to explicit_location_to_linespec and use it and explicit_location_to_string to save string representations of the canonical location. (create_sals_line_offset, convert_linespec_to_sals): `ls' contains an explicit location. Update all references. (convert_explicit_location_to_sals): New function. (parse_linespec): Use PARSER_EXPLICIT to access the parser result's explicit location. (linespec_state_constructor): Initialize is_linespec. Use PARSER_EXPLICIT. (linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's result. (event_location_to_sals): For linespec locations, set is_linespec. Handle explicit locations. (decode_objc): 'ls' contains an explicit location now. Update all references. (symtabs_from_filename): Use source_file_not_found_error. * location.c (struct event_location.u) <explicit>: New member. (initialize_explicit_location): New function. (initialize_event_location): Initialize explicit locations. (new_explicit_location, get_explicit_location) (get_explicit_location_const): New functions. (explicit_to_string_internal): New function; most of contents moved from canonicalize_linespec. (explicit_location_to_string): New function. (explicit_location_to_linespec): New function. (copy_event_location, delete_event_location) (event_location_to_string_const, event_location_empty_p): Handle explicit locations. * location.h (enum offset_relative_sign, struct line_offset): Move here from linespec.h. (enum event_location_type): Add EXPLICIT_LOCATION. (struct explicit_location): New structure. (explicit_location_to_string): Declare. (explicit_location_to_linespec): Declare. (new_explicit_location, get_explicit_locationp (get_explicit_location_const, initialize_explicit_location): Declare.
2015-08-12 02:09:35 +02:00
{
Mass rename `explicit' -> `explicit_loc'. BuildBot reminded me that "explicit" is a reserved keyword in C++. This patch simply renames all the (illegal) uses of "explicit". This should fix the build errors with --enable-build-with-cxx bots. gdb/ChangeLog * break-catch-throw.c (re_set_exception_catchpoint) Rename reserved C++ keyword "explicit" to "explicit_loc". * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint, update_static_tracepoint): Rename reserved C++ keyword "explicit" to "explicit_loc". * completer.c (collect_explicit_location_matches) (explicit_location_completer): Rename reserved C++ keyword "explicit" to "explicit_loc". * linespec.c (struct linespec) <explicit>: Rename to "explicit_loc". (canonicalize_linespec, create_sals_line_offset) (convert_linespec_to_sals, convert_explicit_location_to_sals) (event_location_to_sals, decode_objc): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.c (struct event_location) <explicit>: Rename to "explicit_loc". (initialize_explicit_location, new_explicit_location) (explicit_location_to_string_internal, explicit_location_to_linespec): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.h (explicit_location_to_string) (explicit_location_to_linespec, initialize_explicit_location) (new_explicit_location): Rename reserved C++ keyword "explicit" to "explicit_loc". * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Rename reserved C++ keyword "explicit" to "explicit_loc".
2015-08-13 18:48:12 +02:00
return explicit_to_string_internal (0, explicit_loc);
Explicit locations: introduce explicit locations This patch add support for explicit locations and switches many linespec locations to this new location type. This patch also converts all linespec locations entered by the user to an explicit representation internally (thus bypassing the linespec parser when resetting the breakpoint). This patch does not introduce any user-visible changes. gdb/ChangeLog: * break-catch-throw.c (re_set_exception_catchpoint): Convert linespec into explicit location. * breakpoint.c (create_overlay_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Convert linespec into explicit location. (update_static_tracepoint): Convert linespec into explicit location. * linespec.c (enum offset_relative_sign, struct line_offset): Move location.h. (struct linespec) <expression, expr_pc, source_filename> <function_name, label_name, line_offset>: Replace with ... <explicit>: ... this. <is_linespec>: New member. (PARSER_EXPLICIT): New accessor macro. (undefined_label_error): New function. (source_file_not_found_error): New function. (linespec_parse_basic): The parser result is now an explicit location. Use PARSER_EXPLICIT to access it. Use undefined_label_error. (canonicalize_linespec): Convert canonical linespec into explicit location. Move string representation of location to explicit_location_to_linespec and use it and explicit_location_to_string to save string representations of the canonical location. (create_sals_line_offset, convert_linespec_to_sals): `ls' contains an explicit location. Update all references. (convert_explicit_location_to_sals): New function. (parse_linespec): Use PARSER_EXPLICIT to access the parser result's explicit location. (linespec_state_constructor): Initialize is_linespec. Use PARSER_EXPLICIT. (linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's result. (event_location_to_sals): For linespec locations, set is_linespec. Handle explicit locations. (decode_objc): 'ls' contains an explicit location now. Update all references. (symtabs_from_filename): Use source_file_not_found_error. * location.c (struct event_location.u) <explicit>: New member. (initialize_explicit_location): New function. (initialize_event_location): Initialize explicit locations. (new_explicit_location, get_explicit_location) (get_explicit_location_const): New functions. (explicit_to_string_internal): New function; most of contents moved from canonicalize_linespec. (explicit_location_to_string): New function. (explicit_location_to_linespec): New function. (copy_event_location, delete_event_location) (event_location_to_string_const, event_location_empty_p): Handle explicit locations. * location.h (enum offset_relative_sign, struct line_offset): Move here from linespec.h. (enum event_location_type): Add EXPLICIT_LOCATION. (struct explicit_location): New structure. (explicit_location_to_string): Declare. (explicit_location_to_linespec): Declare. (new_explicit_location, get_explicit_locationp (get_explicit_location_const, initialize_explicit_location): Declare.
2015-08-12 02:09:35 +02:00
}
/* See description in location.h. */
char *
Mass rename `explicit' -> `explicit_loc'. BuildBot reminded me that "explicit" is a reserved keyword in C++. This patch simply renames all the (illegal) uses of "explicit". This should fix the build errors with --enable-build-with-cxx bots. gdb/ChangeLog * break-catch-throw.c (re_set_exception_catchpoint) Rename reserved C++ keyword "explicit" to "explicit_loc". * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint, update_static_tracepoint): Rename reserved C++ keyword "explicit" to "explicit_loc". * completer.c (collect_explicit_location_matches) (explicit_location_completer): Rename reserved C++ keyword "explicit" to "explicit_loc". * linespec.c (struct linespec) <explicit>: Rename to "explicit_loc". (canonicalize_linespec, create_sals_line_offset) (convert_linespec_to_sals, convert_explicit_location_to_sals) (event_location_to_sals, decode_objc): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.c (struct event_location) <explicit>: Rename to "explicit_loc". (initialize_explicit_location, new_explicit_location) (explicit_location_to_string_internal, explicit_location_to_linespec): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.h (explicit_location_to_string) (explicit_location_to_linespec, initialize_explicit_location) (new_explicit_location): Rename reserved C++ keyword "explicit" to "explicit_loc". * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Rename reserved C++ keyword "explicit" to "explicit_loc".
2015-08-13 18:48:12 +02:00
explicit_location_to_linespec (const struct explicit_location *explicit_loc)
Explicit locations: introduce explicit locations This patch add support for explicit locations and switches many linespec locations to this new location type. This patch also converts all linespec locations entered by the user to an explicit representation internally (thus bypassing the linespec parser when resetting the breakpoint). This patch does not introduce any user-visible changes. gdb/ChangeLog: * break-catch-throw.c (re_set_exception_catchpoint): Convert linespec into explicit location. * breakpoint.c (create_overlay_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Convert linespec into explicit location. (update_static_tracepoint): Convert linespec into explicit location. * linespec.c (enum offset_relative_sign, struct line_offset): Move location.h. (struct linespec) <expression, expr_pc, source_filename> <function_name, label_name, line_offset>: Replace with ... <explicit>: ... this. <is_linespec>: New member. (PARSER_EXPLICIT): New accessor macro. (undefined_label_error): New function. (source_file_not_found_error): New function. (linespec_parse_basic): The parser result is now an explicit location. Use PARSER_EXPLICIT to access it. Use undefined_label_error. (canonicalize_linespec): Convert canonical linespec into explicit location. Move string representation of location to explicit_location_to_linespec and use it and explicit_location_to_string to save string representations of the canonical location. (create_sals_line_offset, convert_linespec_to_sals): `ls' contains an explicit location. Update all references. (convert_explicit_location_to_sals): New function. (parse_linespec): Use PARSER_EXPLICIT to access the parser result's explicit location. (linespec_state_constructor): Initialize is_linespec. Use PARSER_EXPLICIT. (linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's result. (event_location_to_sals): For linespec locations, set is_linespec. Handle explicit locations. (decode_objc): 'ls' contains an explicit location now. Update all references. (symtabs_from_filename): Use source_file_not_found_error. * location.c (struct event_location.u) <explicit>: New member. (initialize_explicit_location): New function. (initialize_event_location): Initialize explicit locations. (new_explicit_location, get_explicit_location) (get_explicit_location_const): New functions. (explicit_to_string_internal): New function; most of contents moved from canonicalize_linespec. (explicit_location_to_string): New function. (explicit_location_to_linespec): New function. (copy_event_location, delete_event_location) (event_location_to_string_const, event_location_empty_p): Handle explicit locations. * location.h (enum offset_relative_sign, struct line_offset): Move here from linespec.h. (enum event_location_type): Add EXPLICIT_LOCATION. (struct explicit_location): New structure. (explicit_location_to_string): Declare. (explicit_location_to_linespec): Declare. (new_explicit_location, get_explicit_locationp (get_explicit_location_const, initialize_explicit_location): Declare.
2015-08-12 02:09:35 +02:00
{
Mass rename `explicit' -> `explicit_loc'. BuildBot reminded me that "explicit" is a reserved keyword in C++. This patch simply renames all the (illegal) uses of "explicit". This should fix the build errors with --enable-build-with-cxx bots. gdb/ChangeLog * break-catch-throw.c (re_set_exception_catchpoint) Rename reserved C++ keyword "explicit" to "explicit_loc". * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint, update_static_tracepoint): Rename reserved C++ keyword "explicit" to "explicit_loc". * completer.c (collect_explicit_location_matches) (explicit_location_completer): Rename reserved C++ keyword "explicit" to "explicit_loc". * linespec.c (struct linespec) <explicit>: Rename to "explicit_loc". (canonicalize_linespec, create_sals_line_offset) (convert_linespec_to_sals, convert_explicit_location_to_sals) (event_location_to_sals, decode_objc): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.c (struct event_location) <explicit>: Rename to "explicit_loc". (initialize_explicit_location, new_explicit_location) (explicit_location_to_string_internal, explicit_location_to_linespec): Rename reserved C++ keyword "explicit" to "explicit_loc". * location.h (explicit_location_to_string) (explicit_location_to_linespec, initialize_explicit_location) (new_explicit_location): Rename reserved C++ keyword "explicit" to "explicit_loc". * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Rename reserved C++ keyword "explicit" to "explicit_loc".
2015-08-13 18:48:12 +02:00
return explicit_to_string_internal (1, explicit_loc);
Explicit locations: introduce explicit locations This patch add support for explicit locations and switches many linespec locations to this new location type. This patch also converts all linespec locations entered by the user to an explicit representation internally (thus bypassing the linespec parser when resetting the breakpoint). This patch does not introduce any user-visible changes. gdb/ChangeLog: * break-catch-throw.c (re_set_exception_catchpoint): Convert linespec into explicit location. * breakpoint.c (create_overlay_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Convert linespec into explicit location. (update_static_tracepoint): Convert linespec into explicit location. * linespec.c (enum offset_relative_sign, struct line_offset): Move location.h. (struct linespec) <expression, expr_pc, source_filename> <function_name, label_name, line_offset>: Replace with ... <explicit>: ... this. <is_linespec>: New member. (PARSER_EXPLICIT): New accessor macro. (undefined_label_error): New function. (source_file_not_found_error): New function. (linespec_parse_basic): The parser result is now an explicit location. Use PARSER_EXPLICIT to access it. Use undefined_label_error. (canonicalize_linespec): Convert canonical linespec into explicit location. Move string representation of location to explicit_location_to_linespec and use it and explicit_location_to_string to save string representations of the canonical location. (create_sals_line_offset, convert_linespec_to_sals): `ls' contains an explicit location. Update all references. (convert_explicit_location_to_sals): New function. (parse_linespec): Use PARSER_EXPLICIT to access the parser result's explicit location. (linespec_state_constructor): Initialize is_linespec. Use PARSER_EXPLICIT. (linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's result. (event_location_to_sals): For linespec locations, set is_linespec. Handle explicit locations. (decode_objc): 'ls' contains an explicit location now. Update all references. (symtabs_from_filename): Use source_file_not_found_error. * location.c (struct event_location.u) <explicit>: New member. (initialize_explicit_location): New function. (initialize_event_location): Initialize explicit locations. (new_explicit_location, get_explicit_location) (get_explicit_location_const): New functions. (explicit_to_string_internal): New function; most of contents moved from canonicalize_linespec. (explicit_location_to_string): New function. (explicit_location_to_linespec): New function. (copy_event_location, delete_event_location) (event_location_to_string_const, event_location_empty_p): Handle explicit locations. * location.h (enum offset_relative_sign, struct line_offset): Move here from linespec.h. (enum event_location_type): Add EXPLICIT_LOCATION. (struct explicit_location): New structure. (explicit_location_to_string): Declare. (explicit_location_to_linespec): Declare. (new_explicit_location, get_explicit_locationp (get_explicit_location_const, initialize_explicit_location): Declare.
2015-08-12 02:09:35 +02:00
}
/* See description in location.h. */
Introduce event_location_up This removes make_cleanup_delete_event_location and instead changes the various location functions to return an event_location_up, a new unique_ptr typedef. This is largely straightforward, but be sure to examine the init_breakpoint_sal change. I believe the code I deleted there is dead, because "location != NULL" can never be true in that branch; but you should double-check. gdb/ChangeLog 2017-04-12 Tom Tromey <tom@tromey.com> * tracepoint.c (scope_info): Update. * spu-tdep.c (spu_catch_start): Update. * python/python.c (gdbpy_decode_line): Update. * python/py-finishbreakpoint.c (bpfinishpy_init): Update. * python/py-breakpoint.c (bppy_init): Update. * probe.c (parse_probes): Update. * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Update. * location.h (event_location_deleter): New struct. (event_location_up): New typedef. (new_linespec_location, new_address_location, new_probe_location) (new_explicit_location, copy_event_location) (string_to_event_location, string_to_event_location_basic) (string_to_explicit_location): Update return type. (make_cleanup_delete_event_location): Remove. * location.c (new_linespec_location, new_address_location) (new_probe_location, new_explicit_location, copy_event_location): Return event_location_up. (delete_event_location_cleanup) (make_cleanup_delete_event_location): Remove. (string_to_explicit_location, string_to_event_location_basic) (string_to_event_location): Return event_location_up. * linespec.c (canonicalize_linespec, event_location_to_sals) (decode_line_with_current_source) (decode_line_with_last_displayed, decode_objc): Update. * guile/scm-breakpoint.c (gdbscm_register_breakpoint_x): Update. * completer.c (location_completer): Update. * cli/cli-cmds.c (edit_command, list_command): Update. * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint) (create_thread_event_breakpoint): Update. (init_breakpoint_sal): Update. Remove some dead code. (create_breakpoint_sal): Change type of "location". Update. (create_breakpoints_sal, create_breakpoint, break_command_1) (dprintf_command, break_range_command, until_break_command) (init_ada_exception_breakpoint) (strace_marker_create_sals_from_location) (update_static_tracepoint, trace_command, ftrace_command) (strace_command, create_tracepoint_from_upload): Update. * break-catch-throw.c (re_set_exception_catchpoint): Update. * ax-gdb.c (agent_command_1): Update.
2017-04-06 04:44:01 +02:00
event_location_up
copy_event_location (const struct event_location *src)
{
struct event_location *dst;
dst = XCNEW (struct event_location);
EL_TYPE (dst) = EL_TYPE (src);
if (EL_STRING (src) != NULL)
EL_STRING (dst) = xstrdup (EL_STRING (src));
switch (EL_TYPE (src))
{
case LINESPEC_LOCATION:
if (EL_LINESPEC (src) != NULL)
EL_LINESPEC (dst) = xstrdup (EL_LINESPEC (src));
break;
case ADDRESS_LOCATION:
EL_ADDRESS (dst) = EL_ADDRESS (src);
break;
Explicit locations: introduce explicit locations This patch add support for explicit locations and switches many linespec locations to this new location type. This patch also converts all linespec locations entered by the user to an explicit representation internally (thus bypassing the linespec parser when resetting the breakpoint). This patch does not introduce any user-visible changes. gdb/ChangeLog: * break-catch-throw.c (re_set_exception_catchpoint): Convert linespec into explicit location. * breakpoint.c (create_overlay_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Convert linespec into explicit location. (update_static_tracepoint): Convert linespec into explicit location. * linespec.c (enum offset_relative_sign, struct line_offset): Move location.h. (struct linespec) <expression, expr_pc, source_filename> <function_name, label_name, line_offset>: Replace with ... <explicit>: ... this. <is_linespec>: New member. (PARSER_EXPLICIT): New accessor macro. (undefined_label_error): New function. (source_file_not_found_error): New function. (linespec_parse_basic): The parser result is now an explicit location. Use PARSER_EXPLICIT to access it. Use undefined_label_error. (canonicalize_linespec): Convert canonical linespec into explicit location. Move string representation of location to explicit_location_to_linespec and use it and explicit_location_to_string to save string representations of the canonical location. (create_sals_line_offset, convert_linespec_to_sals): `ls' contains an explicit location. Update all references. (convert_explicit_location_to_sals): New function. (parse_linespec): Use PARSER_EXPLICIT to access the parser result's explicit location. (linespec_state_constructor): Initialize is_linespec. Use PARSER_EXPLICIT. (linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's result. (event_location_to_sals): For linespec locations, set is_linespec. Handle explicit locations. (decode_objc): 'ls' contains an explicit location now. Update all references. (symtabs_from_filename): Use source_file_not_found_error. * location.c (struct event_location.u) <explicit>: New member. (initialize_explicit_location): New function. (initialize_event_location): Initialize explicit locations. (new_explicit_location, get_explicit_location) (get_explicit_location_const): New functions. (explicit_to_string_internal): New function; most of contents moved from canonicalize_linespec. (explicit_location_to_string): New function. (explicit_location_to_linespec): New function. (copy_event_location, delete_event_location) (event_location_to_string_const, event_location_empty_p): Handle explicit locations. * location.h (enum offset_relative_sign, struct line_offset): Move here from linespec.h. (enum event_location_type): Add EXPLICIT_LOCATION. (struct explicit_location): New structure. (explicit_location_to_string): Declare. (explicit_location_to_linespec): Declare. (new_explicit_location, get_explicit_locationp (get_explicit_location_const, initialize_explicit_location): Declare.
2015-08-12 02:09:35 +02:00
case EXPLICIT_LOCATION:
if (EL_EXPLICIT (src)->source_filename != NULL)
EL_EXPLICIT (dst)->source_filename
= xstrdup (EL_EXPLICIT (src)->source_filename);
if (EL_EXPLICIT (src)->function_name != NULL)
EL_EXPLICIT (dst)->function_name
= xstrdup (EL_EXPLICIT (src)->function_name);
if (EL_EXPLICIT (src)->label_name != NULL)
EL_EXPLICIT (dst)->label_name = xstrdup (EL_EXPLICIT (src)->label_name);
EL_EXPLICIT (dst)->line_offset = EL_EXPLICIT (src)->line_offset;
break;
case PROBE_LOCATION:
if (EL_PROBE (src) != NULL)
EL_PROBE (dst) = xstrdup (EL_PROBE (src));
break;
default:
gdb_assert_not_reached ("unknown event location type");
}
Introduce event_location_up This removes make_cleanup_delete_event_location and instead changes the various location functions to return an event_location_up, a new unique_ptr typedef. This is largely straightforward, but be sure to examine the init_breakpoint_sal change. I believe the code I deleted there is dead, because "location != NULL" can never be true in that branch; but you should double-check. gdb/ChangeLog 2017-04-12 Tom Tromey <tom@tromey.com> * tracepoint.c (scope_info): Update. * spu-tdep.c (spu_catch_start): Update. * python/python.c (gdbpy_decode_line): Update. * python/py-finishbreakpoint.c (bpfinishpy_init): Update. * python/py-breakpoint.c (bppy_init): Update. * probe.c (parse_probes): Update. * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Update. * location.h (event_location_deleter): New struct. (event_location_up): New typedef. (new_linespec_location, new_address_location, new_probe_location) (new_explicit_location, copy_event_location) (string_to_event_location, string_to_event_location_basic) (string_to_explicit_location): Update return type. (make_cleanup_delete_event_location): Remove. * location.c (new_linespec_location, new_address_location) (new_probe_location, new_explicit_location, copy_event_location): Return event_location_up. (delete_event_location_cleanup) (make_cleanup_delete_event_location): Remove. (string_to_explicit_location, string_to_event_location_basic) (string_to_event_location): Return event_location_up. * linespec.c (canonicalize_linespec, event_location_to_sals) (decode_line_with_current_source) (decode_line_with_last_displayed, decode_objc): Update. * guile/scm-breakpoint.c (gdbscm_register_breakpoint_x): Update. * completer.c (location_completer): Update. * cli/cli-cmds.c (edit_command, list_command): Update. * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint) (create_thread_event_breakpoint): Update. (init_breakpoint_sal): Update. Remove some dead code. (create_breakpoint_sal): Change type of "location". Update. (create_breakpoints_sal, create_breakpoint, break_command_1) (dprintf_command, break_range_command, until_break_command) (init_ada_exception_breakpoint) (strace_marker_create_sals_from_location) (update_static_tracepoint, trace_command, ftrace_command) (strace_command, create_tracepoint_from_upload): Update. * break-catch-throw.c (re_set_exception_catchpoint): Update. * ax-gdb.c (agent_command_1): Update.
2017-04-06 04:44:01 +02:00
return event_location_up (dst);
}
void
event_location_deleter::operator() (event_location *location) const
{
if (location != NULL)
{
xfree (EL_STRING (location));
switch (EL_TYPE (location))
{
case LINESPEC_LOCATION:
xfree (EL_LINESPEC (location));
break;
case ADDRESS_LOCATION:
/* Nothing to do. */
break;
Explicit locations: introduce explicit locations This patch add support for explicit locations and switches many linespec locations to this new location type. This patch also converts all linespec locations entered by the user to an explicit representation internally (thus bypassing the linespec parser when resetting the breakpoint). This patch does not introduce any user-visible changes. gdb/ChangeLog: * break-catch-throw.c (re_set_exception_catchpoint): Convert linespec into explicit location. * breakpoint.c (create_overlay_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Convert linespec into explicit location. (update_static_tracepoint): Convert linespec into explicit location. * linespec.c (enum offset_relative_sign, struct line_offset): Move location.h. (struct linespec) <expression, expr_pc, source_filename> <function_name, label_name, line_offset>: Replace with ... <explicit>: ... this. <is_linespec>: New member. (PARSER_EXPLICIT): New accessor macro. (undefined_label_error): New function. (source_file_not_found_error): New function. (linespec_parse_basic): The parser result is now an explicit location. Use PARSER_EXPLICIT to access it. Use undefined_label_error. (canonicalize_linespec): Convert canonical linespec into explicit location. Move string representation of location to explicit_location_to_linespec and use it and explicit_location_to_string to save string representations of the canonical location. (create_sals_line_offset, convert_linespec_to_sals): `ls' contains an explicit location. Update all references. (convert_explicit_location_to_sals): New function. (parse_linespec): Use PARSER_EXPLICIT to access the parser result's explicit location. (linespec_state_constructor): Initialize is_linespec. Use PARSER_EXPLICIT. (linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's result. (event_location_to_sals): For linespec locations, set is_linespec. Handle explicit locations. (decode_objc): 'ls' contains an explicit location now. Update all references. (symtabs_from_filename): Use source_file_not_found_error. * location.c (struct event_location.u) <explicit>: New member. (initialize_explicit_location): New function. (initialize_event_location): Initialize explicit locations. (new_explicit_location, get_explicit_location) (get_explicit_location_const): New functions. (explicit_to_string_internal): New function; most of contents moved from canonicalize_linespec. (explicit_location_to_string): New function. (explicit_location_to_linespec): New function. (copy_event_location, delete_event_location) (event_location_to_string_const, event_location_empty_p): Handle explicit locations. * location.h (enum offset_relative_sign, struct line_offset): Move here from linespec.h. (enum event_location_type): Add EXPLICIT_LOCATION. (struct explicit_location): New structure. (explicit_location_to_string): Declare. (explicit_location_to_linespec): Declare. (new_explicit_location, get_explicit_locationp (get_explicit_location_const, initialize_explicit_location): Declare.
2015-08-12 02:09:35 +02:00
case EXPLICIT_LOCATION:
xfree (EL_EXPLICIT (location)->source_filename);
xfree (EL_EXPLICIT (location)->function_name);
xfree (EL_EXPLICIT (location)->label_name);
break;
case PROBE_LOCATION:
xfree (EL_PROBE (location));
break;
default:
gdb_assert_not_reached ("unknown event location type");
}
xfree (location);
}
}
/* See description in location.h. */
const char *
event_location_to_string (struct event_location *location)
{
if (EL_STRING (location) == NULL)
{
switch (EL_TYPE (location))
{
case LINESPEC_LOCATION:
if (EL_LINESPEC (location) != NULL)
EL_STRING (location) = xstrdup (EL_LINESPEC (location));
break;
case ADDRESS_LOCATION:
EL_STRING (location)
= xstrprintf ("*%s",
core_addr_to_string (EL_ADDRESS (location)));
break;
Explicit locations: introduce explicit locations This patch add support for explicit locations and switches many linespec locations to this new location type. This patch also converts all linespec locations entered by the user to an explicit representation internally (thus bypassing the linespec parser when resetting the breakpoint). This patch does not introduce any user-visible changes. gdb/ChangeLog: * break-catch-throw.c (re_set_exception_catchpoint): Convert linespec into explicit location. * breakpoint.c (create_overlay_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Convert linespec into explicit location. (update_static_tracepoint): Convert linespec into explicit location. * linespec.c (enum offset_relative_sign, struct line_offset): Move location.h. (struct linespec) <expression, expr_pc, source_filename> <function_name, label_name, line_offset>: Replace with ... <explicit>: ... this. <is_linespec>: New member. (PARSER_EXPLICIT): New accessor macro. (undefined_label_error): New function. (source_file_not_found_error): New function. (linespec_parse_basic): The parser result is now an explicit location. Use PARSER_EXPLICIT to access it. Use undefined_label_error. (canonicalize_linespec): Convert canonical linespec into explicit location. Move string representation of location to explicit_location_to_linespec and use it and explicit_location_to_string to save string representations of the canonical location. (create_sals_line_offset, convert_linespec_to_sals): `ls' contains an explicit location. Update all references. (convert_explicit_location_to_sals): New function. (parse_linespec): Use PARSER_EXPLICIT to access the parser result's explicit location. (linespec_state_constructor): Initialize is_linespec. Use PARSER_EXPLICIT. (linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's result. (event_location_to_sals): For linespec locations, set is_linespec. Handle explicit locations. (decode_objc): 'ls' contains an explicit location now. Update all references. (symtabs_from_filename): Use source_file_not_found_error. * location.c (struct event_location.u) <explicit>: New member. (initialize_explicit_location): New function. (initialize_event_location): Initialize explicit locations. (new_explicit_location, get_explicit_location) (get_explicit_location_const): New functions. (explicit_to_string_internal): New function; most of contents moved from canonicalize_linespec. (explicit_location_to_string): New function. (explicit_location_to_linespec): New function. (copy_event_location, delete_event_location) (event_location_to_string_const, event_location_empty_p): Handle explicit locations. * location.h (enum offset_relative_sign, struct line_offset): Move here from linespec.h. (enum event_location_type): Add EXPLICIT_LOCATION. (struct explicit_location): New structure. (explicit_location_to_string): Declare. (explicit_location_to_linespec): Declare. (new_explicit_location, get_explicit_locationp (get_explicit_location_const, initialize_explicit_location): Declare.
2015-08-12 02:09:35 +02:00
case EXPLICIT_LOCATION:
EL_STRING (location)
= explicit_location_to_string (EL_EXPLICIT (location));
break;
case PROBE_LOCATION:
EL_STRING (location) = xstrdup (EL_PROBE (location));
break;
default:
gdb_assert_not_reached ("unknown event location type");
}
}
return EL_STRING (location);
}
Rewrite/enhance explicit locations completer, parse left->right One of the most annoying (to me) things about GDB's completion is when you have overloads in your program, and you want to set a breakpoint in one of them: void function(int); // set breakpoint here. void function(long); (gdb) b -f func[TAB] (gdb) b -f function( # ok, gdb completed as much as possible. (gdb) b -f function([TAB] # show me the overloads, please. <_all_ symbols in the program are shown...> E.g., when debugging GDB, that'd be: (gdb) b -f function([TAB] (anonymous namespace)::get_global()::global pt_insn_get_offset@plt scm_new_port_table_entry asprintf pt_pkt_alloc_decoder scm_new_port_table_entry@plt asprintf@plt pt_pkt_alloc_decoder@plt scm_out_of_range bt_ctf_get_char_array pt_pkt_sync_forward scm_out_of_range@plt bt_ctf_get_char_array@plt pt_pkt_sync_forward@plt scm_putc bt_ctf_get_uint64 pwrite scm_putc@plt bt_ctf_get_uint64@plt pwrite@plt scm_reverse_x bt_ctf_iter_read_event PyErr_Restore scm_reverse_x@plt bt_ctf_iter_read_event@plt PyErr_Restore@plt scm_set_port_filename_x <snip...> Now that's a load of completely useless completions. The reason GDB offers those is that the completer relies on readline figuring out the completion word point in the input line based on the language's word break characters, which include "(". So readline tells the completer to complete on "", the string that is after '('. Likewise, if you type "function(i[TAB]" to try to complete to "int", you're out of luck. GDB shows you all the symbols in the program that start with "i"... This makes sense for the expression completer, as what you'd want to type is e.g., a global variable, say: (gdb) print function(i[TAB] but, it makes no sense when specifying a function name for a breakpoint location. To get around that limitation, users need to quote the function name, like: (gdb) b -f 'function([TAB] function(int) function(long) (gdb) b 'function(i[TAB] (gdb) b 'function(int)' # now completes correctly! Note that the quoting is only necessary for completion. Creating the breakpoint does not require the quoting: (gdb) b -f function(int) [RET] Breakpoint 1 at .... This patch removes this limitation. ( Actually, it's a necessary patch, though not sufficient. That'll start working correctly by the end of the series. With this patch, if try it, you'll see: (gdb) b -f function(i[TAB] (gdb) b -f function i.e., gdb strips everything after the "(". That's caused by some code in symtab.c that'll be eliminated further down the series. These patches are all unfortunately interrelated, which is also the reason new tests only appear much later in the series. But let's ignore that reality for the remainder of the description. ) So... this patch gets rid of the need for quoting. It does that by adding a way for a completer to control the exact completion word point that readline should start the completion request for, instead of letting readline try to figure it out using the current language's word break chars array, and often failing. In the case above, we want the completer to figure out that it's completing a function name that starts with "function(i". It now does. It took me a while to figure out a way to ask readline to "use this exact word point", and for a while I feared that it'd be impossible with current readline (and having to rely on master readline for core functionality is something I'd like to avoid very much). Eventually, after several different attempts, I came up with what is described in the comment above gdb_custom_word_point_brkchars in the patch. With this patch, the handle_brkchars phase of the explicit location completer advances the expected word point as it parses the input line left to right, until it figures out exactly what we're completing, instead of expecting readline to break the string using the word break characters, and then having the completer heuristically fix up a bad decision by parsing the input string backwards. This allows correctly knowning that we're completing a symbol name after -function, complete functions without quoting, etc. Later, we'll make use of this same mechanims to implement a proper linespec completer that avoids need for quoting too. gdb/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * ada-lang.c (ada_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * cli/cli-cmds.c (complete_command): Get the completion result out of the handle_brkchars tracker if used a custom word point. * completer.c: Include "linespec.h". (enum explicit_location_match_type) <MATCH_LINE>: New enumerator. (advance_to_expression_complete_word_point): New. (completion_tracker::completes_to_completion_word): New. (complete_files_symbols): Pass down complete_symbol_mode::EXPRESSION. (explicit_options, probe_options): New. (collect_explicit_location_matches): Complete on the explictit_loc->foo instead of word. Use linespec_complete_function. Handle MATCH_LINE. Handle offering keyword and options completions. (backup_text_ptr): Delete. (skip_keyword): New. (complete_explicit_location): Remove 'word' parameter. Add language, quoted_arg_start and quoted_arg_end parameters. Rewrite, parsing left to right. (location_completer): Rewrite. (location_completer_handle_brkchars): New function. (symbol_completer): Pass down complete_symbol_mode::EXPRESSION. (enum complete_line_internal_reason): Adjust comments. (completion_tracker::discard_completions): New. (completer_handle_brkchars_func_for_completer): Handle location_completer. (gdb_custom_word_point_brkchars) (gdb_org_rl_basic_quote_characters): New. (gdb_completion_word_break_characters_throw) (completion_find_completion_word): Handle trackers that use a custom word point. (completion_tracker::advance_custom_word_point_by): New. (completion_tracker::build_completion_result): Don't rely on readline appending the quote char. (gdb_rl_attempted_completion_function_throw): Handle trackers that use a custom word point. (gdb_rl_attempted_completion_function): Restore rl_basic_quote_characters. * completer.h (class completion_tracker): Extend intro comment. (completion_tracker::set_quote_char) (completion_tracker::quote_char) (completion_tracker::set_use_custom_word_point) (completion_tracker::use_custom_word_point) (completion_tracker::custom_word_point) (completion_tracker::set_custom_word_point) (completion_tracker::advance_custom_word_point_by) (completion_tracker::completes_to_completion_word) (completion_tracker::discard_completions): New methods. (completion_tracker::m_quote_char) (completion_tracker::m_use_custom_word_point) (completion_tracker::m_custom_word_point): New fields. (advance_to_expression_complete_word_point): Declare. * f-lang.c (f_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * language.h (struct language_defn) <la_collect_symbol_completion_matches>: Add complete_symbol_mode parameter. * linespec.c (linespec_keywords): Add NULL terminator. Make extern. (linespec_complete_function): New function. (linespec_lexer_lex_keyword): Adjust. * linespec.h (linespec_keywords, linespec_complete_function): New declarations. * location.c (find_end_quote): New function. (explicit_location_lex_one): Add explicit_completion_info parameter. Save quoting info. Don't throw if being called for completion. Don't handle Ada operators here. (is_cp_operator, skip_op_false_positives, first_of) (explicit_location_lex_one_function): New function. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. Handle it. Don't use explicit_location_lex_one to lex function names. Use explicit_location_lex_one_function instead. * location.h (struct explicit_completion_info): New. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. * symtab.c (default_collect_symbol_completion_matches_break_on): Add complete_symbol_mode parameter. Handle LINESPEC mode. (default_collect_symbol_completion_matches) (collect_symbol_completion_matches): Add complete_symbol_mode parameter. (collect_symbol_completion_matches_type): Pass down complete_symbol_mode::EXPRESSION. (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. Handle LINESPEC mode. * symtab.h (complete_symbol_mode): New. (default_collect_symbol_completion_matches_break_on) (default_collect_symbol_completion_matches) (collect_symbol_completion_matches) (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. gdb/testsuite/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * gdb.linespec/ls-errs.exp (do_test): Adjust expected output.
2017-07-17 21:21:33 +02:00
/* Find an instance of the quote character C in the string S that is
outside of all single- and double-quoted strings (i.e., any quoting
other than C). */
static const char *
find_end_quote (const char *s, char end_quote_char)
{
/* zero if we're not in quotes;
'"' if we're in a double-quoted string;
'\'' if we're in a single-quoted string. */
char nested_quote_char = '\0';
for (const char *scan = s; *scan != '\0'; scan++)
{
if (nested_quote_char != '\0')
{
if (*scan == nested_quote_char)
nested_quote_char = '\0';
else if (scan[0] == '\\' && *(scan + 1) != '\0')
scan++;
}
else if (*scan == end_quote_char && nested_quote_char == '\0')
return scan;
else if (*scan == '"' || *scan == '\'')
nested_quote_char = *scan;
}
return 0;
}
Explicit locations: add UI features for CLI This patch exposes explicit locations to the CLI user. This enables users to "explicitly" specify attributes of the breakpoint location to avoid any ambiguity that might otherwise exist with linespecs. The general syntax of explicit locations is: -source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME -label LABEL_NAME Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users may use the completer with either options or values. gdb/ChangeLog: * completer.c: Include location.h. (enum match_type): New enum. (location_completer): Rename to ... (linespec_completer): ... this. (collect_explicit_location_matches, backup_text_ptr) (explicit_location_completer): New functions. (location_completer): "New" function; handle linespec and explicit location completions. (complete_line_internal): Remove all location completer-specific handling. * linespec.c (linespec_lexer_lex_keyword, is_ada_operator) (find_toplevel_char): Export. (linespec_parse_line_offset): Export. Issue error if STRING is not numerical. (gdb_get_linespec_parser_quote_characters): New function. * linespec.h (linespec_parse_line_offset): Declare. (get_gdb_linespec_parser_quote_characters): Declare. (is_ada_operator): Declare. (find_toplevel_char): Declare. (linespec_lexer_lex_keyword): Declare. * location.c (explicit_to_event_location): New function. (explicit_location_lex_one): New function. (string_to_explicit_location): New function. (string_to_event_location): Handle explicit locations. * location.h (explicit_to_event_location): Declare. (string_to_explicit_location): Declare. gdb/testsuite/ChangeLog: * gdb.linespec/3explicit.c: New file. * gdb.linespec/cpexplicit.cc: New file. * gdb.linespec/cpexplicit.exp: New file. * gdb.linespec/explicit.c: New file. * gdb.linespec/explicit.exp: New file. * gdb.linespec/explicit2.c: New file. * gdb.linespec/ls-errs.exp: Add explicit location tests. * lib/gdb.exp (capture_command_output): Regexp-escape `command' before using in the matching pattern. Clarify that `prefix' is a regular expression.
2015-08-12 02:09:36 +02:00
/* A lexer for explicit locations. This function will advance INP
past any strings that it lexes. Returns a malloc'd copy of the
lexed string or NULL if no lexing was done. */
static gdb::unique_xmalloc_ptr<char>
Explicit locations: add UI features for CLI This patch exposes explicit locations to the CLI user. This enables users to "explicitly" specify attributes of the breakpoint location to avoid any ambiguity that might otherwise exist with linespecs. The general syntax of explicit locations is: -source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME -label LABEL_NAME Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users may use the completer with either options or values. gdb/ChangeLog: * completer.c: Include location.h. (enum match_type): New enum. (location_completer): Rename to ... (linespec_completer): ... this. (collect_explicit_location_matches, backup_text_ptr) (explicit_location_completer): New functions. (location_completer): "New" function; handle linespec and explicit location completions. (complete_line_internal): Remove all location completer-specific handling. * linespec.c (linespec_lexer_lex_keyword, is_ada_operator) (find_toplevel_char): Export. (linespec_parse_line_offset): Export. Issue error if STRING is not numerical. (gdb_get_linespec_parser_quote_characters): New function. * linespec.h (linespec_parse_line_offset): Declare. (get_gdb_linespec_parser_quote_characters): Declare. (is_ada_operator): Declare. (find_toplevel_char): Declare. (linespec_lexer_lex_keyword): Declare. * location.c (explicit_to_event_location): New function. (explicit_location_lex_one): New function. (string_to_explicit_location): New function. (string_to_event_location): Handle explicit locations. * location.h (explicit_to_event_location): Declare. (string_to_explicit_location): Declare. gdb/testsuite/ChangeLog: * gdb.linespec/3explicit.c: New file. * gdb.linespec/cpexplicit.cc: New file. * gdb.linespec/cpexplicit.exp: New file. * gdb.linespec/explicit.c: New file. * gdb.linespec/explicit.exp: New file. * gdb.linespec/explicit2.c: New file. * gdb.linespec/ls-errs.exp: Add explicit location tests. * lib/gdb.exp (capture_command_output): Regexp-escape `command' before using in the matching pattern. Clarify that `prefix' is a regular expression.
2015-08-12 02:09:36 +02:00
explicit_location_lex_one (const char **inp,
Rewrite/enhance explicit locations completer, parse left->right One of the most annoying (to me) things about GDB's completion is when you have overloads in your program, and you want to set a breakpoint in one of them: void function(int); // set breakpoint here. void function(long); (gdb) b -f func[TAB] (gdb) b -f function( # ok, gdb completed as much as possible. (gdb) b -f function([TAB] # show me the overloads, please. <_all_ symbols in the program are shown...> E.g., when debugging GDB, that'd be: (gdb) b -f function([TAB] (anonymous namespace)::get_global()::global pt_insn_get_offset@plt scm_new_port_table_entry asprintf pt_pkt_alloc_decoder scm_new_port_table_entry@plt asprintf@plt pt_pkt_alloc_decoder@plt scm_out_of_range bt_ctf_get_char_array pt_pkt_sync_forward scm_out_of_range@plt bt_ctf_get_char_array@plt pt_pkt_sync_forward@plt scm_putc bt_ctf_get_uint64 pwrite scm_putc@plt bt_ctf_get_uint64@plt pwrite@plt scm_reverse_x bt_ctf_iter_read_event PyErr_Restore scm_reverse_x@plt bt_ctf_iter_read_event@plt PyErr_Restore@plt scm_set_port_filename_x <snip...> Now that's a load of completely useless completions. The reason GDB offers those is that the completer relies on readline figuring out the completion word point in the input line based on the language's word break characters, which include "(". So readline tells the completer to complete on "", the string that is after '('. Likewise, if you type "function(i[TAB]" to try to complete to "int", you're out of luck. GDB shows you all the symbols in the program that start with "i"... This makes sense for the expression completer, as what you'd want to type is e.g., a global variable, say: (gdb) print function(i[TAB] but, it makes no sense when specifying a function name for a breakpoint location. To get around that limitation, users need to quote the function name, like: (gdb) b -f 'function([TAB] function(int) function(long) (gdb) b 'function(i[TAB] (gdb) b 'function(int)' # now completes correctly! Note that the quoting is only necessary for completion. Creating the breakpoint does not require the quoting: (gdb) b -f function(int) [RET] Breakpoint 1 at .... This patch removes this limitation. ( Actually, it's a necessary patch, though not sufficient. That'll start working correctly by the end of the series. With this patch, if try it, you'll see: (gdb) b -f function(i[TAB] (gdb) b -f function i.e., gdb strips everything after the "(". That's caused by some code in symtab.c that'll be eliminated further down the series. These patches are all unfortunately interrelated, which is also the reason new tests only appear much later in the series. But let's ignore that reality for the remainder of the description. ) So... this patch gets rid of the need for quoting. It does that by adding a way for a completer to control the exact completion word point that readline should start the completion request for, instead of letting readline try to figure it out using the current language's word break chars array, and often failing. In the case above, we want the completer to figure out that it's completing a function name that starts with "function(i". It now does. It took me a while to figure out a way to ask readline to "use this exact word point", and for a while I feared that it'd be impossible with current readline (and having to rely on master readline for core functionality is something I'd like to avoid very much). Eventually, after several different attempts, I came up with what is described in the comment above gdb_custom_word_point_brkchars in the patch. With this patch, the handle_brkchars phase of the explicit location completer advances the expected word point as it parses the input line left to right, until it figures out exactly what we're completing, instead of expecting readline to break the string using the word break characters, and then having the completer heuristically fix up a bad decision by parsing the input string backwards. This allows correctly knowning that we're completing a symbol name after -function, complete functions without quoting, etc. Later, we'll make use of this same mechanims to implement a proper linespec completer that avoids need for quoting too. gdb/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * ada-lang.c (ada_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * cli/cli-cmds.c (complete_command): Get the completion result out of the handle_brkchars tracker if used a custom word point. * completer.c: Include "linespec.h". (enum explicit_location_match_type) <MATCH_LINE>: New enumerator. (advance_to_expression_complete_word_point): New. (completion_tracker::completes_to_completion_word): New. (complete_files_symbols): Pass down complete_symbol_mode::EXPRESSION. (explicit_options, probe_options): New. (collect_explicit_location_matches): Complete on the explictit_loc->foo instead of word. Use linespec_complete_function. Handle MATCH_LINE. Handle offering keyword and options completions. (backup_text_ptr): Delete. (skip_keyword): New. (complete_explicit_location): Remove 'word' parameter. Add language, quoted_arg_start and quoted_arg_end parameters. Rewrite, parsing left to right. (location_completer): Rewrite. (location_completer_handle_brkchars): New function. (symbol_completer): Pass down complete_symbol_mode::EXPRESSION. (enum complete_line_internal_reason): Adjust comments. (completion_tracker::discard_completions): New. (completer_handle_brkchars_func_for_completer): Handle location_completer. (gdb_custom_word_point_brkchars) (gdb_org_rl_basic_quote_characters): New. (gdb_completion_word_break_characters_throw) (completion_find_completion_word): Handle trackers that use a custom word point. (completion_tracker::advance_custom_word_point_by): New. (completion_tracker::build_completion_result): Don't rely on readline appending the quote char. (gdb_rl_attempted_completion_function_throw): Handle trackers that use a custom word point. (gdb_rl_attempted_completion_function): Restore rl_basic_quote_characters. * completer.h (class completion_tracker): Extend intro comment. (completion_tracker::set_quote_char) (completion_tracker::quote_char) (completion_tracker::set_use_custom_word_point) (completion_tracker::use_custom_word_point) (completion_tracker::custom_word_point) (completion_tracker::set_custom_word_point) (completion_tracker::advance_custom_word_point_by) (completion_tracker::completes_to_completion_word) (completion_tracker::discard_completions): New methods. (completion_tracker::m_quote_char) (completion_tracker::m_use_custom_word_point) (completion_tracker::m_custom_word_point): New fields. (advance_to_expression_complete_word_point): Declare. * f-lang.c (f_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * language.h (struct language_defn) <la_collect_symbol_completion_matches>: Add complete_symbol_mode parameter. * linespec.c (linespec_keywords): Add NULL terminator. Make extern. (linespec_complete_function): New function. (linespec_lexer_lex_keyword): Adjust. * linespec.h (linespec_keywords, linespec_complete_function): New declarations. * location.c (find_end_quote): New function. (explicit_location_lex_one): Add explicit_completion_info parameter. Save quoting info. Don't throw if being called for completion. Don't handle Ada operators here. (is_cp_operator, skip_op_false_positives, first_of) (explicit_location_lex_one_function): New function. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. Handle it. Don't use explicit_location_lex_one to lex function names. Use explicit_location_lex_one_function instead. * location.h (struct explicit_completion_info): New. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. * symtab.c (default_collect_symbol_completion_matches_break_on): Add complete_symbol_mode parameter. Handle LINESPEC mode. (default_collect_symbol_completion_matches) (collect_symbol_completion_matches): Add complete_symbol_mode parameter. (collect_symbol_completion_matches_type): Pass down complete_symbol_mode::EXPRESSION. (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. Handle LINESPEC mode. * symtab.h (complete_symbol_mode): New. (default_collect_symbol_completion_matches_break_on) (default_collect_symbol_completion_matches) (collect_symbol_completion_matches) (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. gdb/testsuite/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * gdb.linespec/ls-errs.exp (do_test): Adjust expected output.
2017-07-17 21:21:33 +02:00
const struct language_defn *language,
explicit_completion_info *completion_info)
Explicit locations: add UI features for CLI This patch exposes explicit locations to the CLI user. This enables users to "explicitly" specify attributes of the breakpoint location to avoid any ambiguity that might otherwise exist with linespecs. The general syntax of explicit locations is: -source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME -label LABEL_NAME Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users may use the completer with either options or values. gdb/ChangeLog: * completer.c: Include location.h. (enum match_type): New enum. (location_completer): Rename to ... (linespec_completer): ... this. (collect_explicit_location_matches, backup_text_ptr) (explicit_location_completer): New functions. (location_completer): "New" function; handle linespec and explicit location completions. (complete_line_internal): Remove all location completer-specific handling. * linespec.c (linespec_lexer_lex_keyword, is_ada_operator) (find_toplevel_char): Export. (linespec_parse_line_offset): Export. Issue error if STRING is not numerical. (gdb_get_linespec_parser_quote_characters): New function. * linespec.h (linespec_parse_line_offset): Declare. (get_gdb_linespec_parser_quote_characters): Declare. (is_ada_operator): Declare. (find_toplevel_char): Declare. (linespec_lexer_lex_keyword): Declare. * location.c (explicit_to_event_location): New function. (explicit_location_lex_one): New function. (string_to_explicit_location): New function. (string_to_event_location): Handle explicit locations. * location.h (explicit_to_event_location): Declare. (string_to_explicit_location): Declare. gdb/testsuite/ChangeLog: * gdb.linespec/3explicit.c: New file. * gdb.linespec/cpexplicit.cc: New file. * gdb.linespec/cpexplicit.exp: New file. * gdb.linespec/explicit.c: New file. * gdb.linespec/explicit.exp: New file. * gdb.linespec/explicit2.c: New file. * gdb.linespec/ls-errs.exp: Add explicit location tests. * lib/gdb.exp (capture_command_output): Regexp-escape `command' before using in the matching pattern. Clarify that `prefix' is a regular expression.
2015-08-12 02:09:36 +02:00
{
const char *start = *inp;
if (*start == '\0')
return NULL;
/* If quoted, skip to the ending quote. */
if (strchr (get_gdb_linespec_parser_quote_characters (), *start))
{
Rewrite/enhance explicit locations completer, parse left->right One of the most annoying (to me) things about GDB's completion is when you have overloads in your program, and you want to set a breakpoint in one of them: void function(int); // set breakpoint here. void function(long); (gdb) b -f func[TAB] (gdb) b -f function( # ok, gdb completed as much as possible. (gdb) b -f function([TAB] # show me the overloads, please. <_all_ symbols in the program are shown...> E.g., when debugging GDB, that'd be: (gdb) b -f function([TAB] (anonymous namespace)::get_global()::global pt_insn_get_offset@plt scm_new_port_table_entry asprintf pt_pkt_alloc_decoder scm_new_port_table_entry@plt asprintf@plt pt_pkt_alloc_decoder@plt scm_out_of_range bt_ctf_get_char_array pt_pkt_sync_forward scm_out_of_range@plt bt_ctf_get_char_array@plt pt_pkt_sync_forward@plt scm_putc bt_ctf_get_uint64 pwrite scm_putc@plt bt_ctf_get_uint64@plt pwrite@plt scm_reverse_x bt_ctf_iter_read_event PyErr_Restore scm_reverse_x@plt bt_ctf_iter_read_event@plt PyErr_Restore@plt scm_set_port_filename_x <snip...> Now that's a load of completely useless completions. The reason GDB offers those is that the completer relies on readline figuring out the completion word point in the input line based on the language's word break characters, which include "(". So readline tells the completer to complete on "", the string that is after '('. Likewise, if you type "function(i[TAB]" to try to complete to "int", you're out of luck. GDB shows you all the symbols in the program that start with "i"... This makes sense for the expression completer, as what you'd want to type is e.g., a global variable, say: (gdb) print function(i[TAB] but, it makes no sense when specifying a function name for a breakpoint location. To get around that limitation, users need to quote the function name, like: (gdb) b -f 'function([TAB] function(int) function(long) (gdb) b 'function(i[TAB] (gdb) b 'function(int)' # now completes correctly! Note that the quoting is only necessary for completion. Creating the breakpoint does not require the quoting: (gdb) b -f function(int) [RET] Breakpoint 1 at .... This patch removes this limitation. ( Actually, it's a necessary patch, though not sufficient. That'll start working correctly by the end of the series. With this patch, if try it, you'll see: (gdb) b -f function(i[TAB] (gdb) b -f function i.e., gdb strips everything after the "(". That's caused by some code in symtab.c that'll be eliminated further down the series. These patches are all unfortunately interrelated, which is also the reason new tests only appear much later in the series. But let's ignore that reality for the remainder of the description. ) So... this patch gets rid of the need for quoting. It does that by adding a way for a completer to control the exact completion word point that readline should start the completion request for, instead of letting readline try to figure it out using the current language's word break chars array, and often failing. In the case above, we want the completer to figure out that it's completing a function name that starts with "function(i". It now does. It took me a while to figure out a way to ask readline to "use this exact word point", and for a while I feared that it'd be impossible with current readline (and having to rely on master readline for core functionality is something I'd like to avoid very much). Eventually, after several different attempts, I came up with what is described in the comment above gdb_custom_word_point_brkchars in the patch. With this patch, the handle_brkchars phase of the explicit location completer advances the expected word point as it parses the input line left to right, until it figures out exactly what we're completing, instead of expecting readline to break the string using the word break characters, and then having the completer heuristically fix up a bad decision by parsing the input string backwards. This allows correctly knowning that we're completing a symbol name after -function, complete functions without quoting, etc. Later, we'll make use of this same mechanims to implement a proper linespec completer that avoids need for quoting too. gdb/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * ada-lang.c (ada_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * cli/cli-cmds.c (complete_command): Get the completion result out of the handle_brkchars tracker if used a custom word point. * completer.c: Include "linespec.h". (enum explicit_location_match_type) <MATCH_LINE>: New enumerator. (advance_to_expression_complete_word_point): New. (completion_tracker::completes_to_completion_word): New. (complete_files_symbols): Pass down complete_symbol_mode::EXPRESSION. (explicit_options, probe_options): New. (collect_explicit_location_matches): Complete on the explictit_loc->foo instead of word. Use linespec_complete_function. Handle MATCH_LINE. Handle offering keyword and options completions. (backup_text_ptr): Delete. (skip_keyword): New. (complete_explicit_location): Remove 'word' parameter. Add language, quoted_arg_start and quoted_arg_end parameters. Rewrite, parsing left to right. (location_completer): Rewrite. (location_completer_handle_brkchars): New function. (symbol_completer): Pass down complete_symbol_mode::EXPRESSION. (enum complete_line_internal_reason): Adjust comments. (completion_tracker::discard_completions): New. (completer_handle_brkchars_func_for_completer): Handle location_completer. (gdb_custom_word_point_brkchars) (gdb_org_rl_basic_quote_characters): New. (gdb_completion_word_break_characters_throw) (completion_find_completion_word): Handle trackers that use a custom word point. (completion_tracker::advance_custom_word_point_by): New. (completion_tracker::build_completion_result): Don't rely on readline appending the quote char. (gdb_rl_attempted_completion_function_throw): Handle trackers that use a custom word point. (gdb_rl_attempted_completion_function): Restore rl_basic_quote_characters. * completer.h (class completion_tracker): Extend intro comment. (completion_tracker::set_quote_char) (completion_tracker::quote_char) (completion_tracker::set_use_custom_word_point) (completion_tracker::use_custom_word_point) (completion_tracker::custom_word_point) (completion_tracker::set_custom_word_point) (completion_tracker::advance_custom_word_point_by) (completion_tracker::completes_to_completion_word) (completion_tracker::discard_completions): New methods. (completion_tracker::m_quote_char) (completion_tracker::m_use_custom_word_point) (completion_tracker::m_custom_word_point): New fields. (advance_to_expression_complete_word_point): Declare. * f-lang.c (f_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * language.h (struct language_defn) <la_collect_symbol_completion_matches>: Add complete_symbol_mode parameter. * linespec.c (linespec_keywords): Add NULL terminator. Make extern. (linespec_complete_function): New function. (linespec_lexer_lex_keyword): Adjust. * linespec.h (linespec_keywords, linespec_complete_function): New declarations. * location.c (find_end_quote): New function. (explicit_location_lex_one): Add explicit_completion_info parameter. Save quoting info. Don't throw if being called for completion. Don't handle Ada operators here. (is_cp_operator, skip_op_false_positives, first_of) (explicit_location_lex_one_function): New function. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. Handle it. Don't use explicit_location_lex_one to lex function names. Use explicit_location_lex_one_function instead. * location.h (struct explicit_completion_info): New. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. * symtab.c (default_collect_symbol_completion_matches_break_on): Add complete_symbol_mode parameter. Handle LINESPEC mode. (default_collect_symbol_completion_matches) (collect_symbol_completion_matches): Add complete_symbol_mode parameter. (collect_symbol_completion_matches_type): Pass down complete_symbol_mode::EXPRESSION. (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. Handle LINESPEC mode. * symtab.h (complete_symbol_mode): New. (default_collect_symbol_completion_matches_break_on) (default_collect_symbol_completion_matches) (collect_symbol_completion_matches) (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. gdb/testsuite/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * gdb.linespec/ls-errs.exp (do_test): Adjust expected output.
2017-07-17 21:21:33 +02:00
if (completion_info != NULL)
completion_info->quoted_arg_start = start;
Explicit locations: add UI features for CLI This patch exposes explicit locations to the CLI user. This enables users to "explicitly" specify attributes of the breakpoint location to avoid any ambiguity that might otherwise exist with linespecs. The general syntax of explicit locations is: -source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME -label LABEL_NAME Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users may use the completer with either options or values. gdb/ChangeLog: * completer.c: Include location.h. (enum match_type): New enum. (location_completer): Rename to ... (linespec_completer): ... this. (collect_explicit_location_matches, backup_text_ptr) (explicit_location_completer): New functions. (location_completer): "New" function; handle linespec and explicit location completions. (complete_line_internal): Remove all location completer-specific handling. * linespec.c (linespec_lexer_lex_keyword, is_ada_operator) (find_toplevel_char): Export. (linespec_parse_line_offset): Export. Issue error if STRING is not numerical. (gdb_get_linespec_parser_quote_characters): New function. * linespec.h (linespec_parse_line_offset): Declare. (get_gdb_linespec_parser_quote_characters): Declare. (is_ada_operator): Declare. (find_toplevel_char): Declare. (linespec_lexer_lex_keyword): Declare. * location.c (explicit_to_event_location): New function. (explicit_location_lex_one): New function. (string_to_explicit_location): New function. (string_to_event_location): Handle explicit locations. * location.h (explicit_to_event_location): Declare. (string_to_explicit_location): Declare. gdb/testsuite/ChangeLog: * gdb.linespec/3explicit.c: New file. * gdb.linespec/cpexplicit.cc: New file. * gdb.linespec/cpexplicit.exp: New file. * gdb.linespec/explicit.c: New file. * gdb.linespec/explicit.exp: New file. * gdb.linespec/explicit2.c: New file. * gdb.linespec/ls-errs.exp: Add explicit location tests. * lib/gdb.exp (capture_command_output): Regexp-escape `command' before using in the matching pattern. Clarify that `prefix' is a regular expression.
2015-08-12 02:09:36 +02:00
Rewrite/enhance explicit locations completer, parse left->right One of the most annoying (to me) things about GDB's completion is when you have overloads in your program, and you want to set a breakpoint in one of them: void function(int); // set breakpoint here. void function(long); (gdb) b -f func[TAB] (gdb) b -f function( # ok, gdb completed as much as possible. (gdb) b -f function([TAB] # show me the overloads, please. <_all_ symbols in the program are shown...> E.g., when debugging GDB, that'd be: (gdb) b -f function([TAB] (anonymous namespace)::get_global()::global pt_insn_get_offset@plt scm_new_port_table_entry asprintf pt_pkt_alloc_decoder scm_new_port_table_entry@plt asprintf@plt pt_pkt_alloc_decoder@plt scm_out_of_range bt_ctf_get_char_array pt_pkt_sync_forward scm_out_of_range@plt bt_ctf_get_char_array@plt pt_pkt_sync_forward@plt scm_putc bt_ctf_get_uint64 pwrite scm_putc@plt bt_ctf_get_uint64@plt pwrite@plt scm_reverse_x bt_ctf_iter_read_event PyErr_Restore scm_reverse_x@plt bt_ctf_iter_read_event@plt PyErr_Restore@plt scm_set_port_filename_x <snip...> Now that's a load of completely useless completions. The reason GDB offers those is that the completer relies on readline figuring out the completion word point in the input line based on the language's word break characters, which include "(". So readline tells the completer to complete on "", the string that is after '('. Likewise, if you type "function(i[TAB]" to try to complete to "int", you're out of luck. GDB shows you all the symbols in the program that start with "i"... This makes sense for the expression completer, as what you'd want to type is e.g., a global variable, say: (gdb) print function(i[TAB] but, it makes no sense when specifying a function name for a breakpoint location. To get around that limitation, users need to quote the function name, like: (gdb) b -f 'function([TAB] function(int) function(long) (gdb) b 'function(i[TAB] (gdb) b 'function(int)' # now completes correctly! Note that the quoting is only necessary for completion. Creating the breakpoint does not require the quoting: (gdb) b -f function(int) [RET] Breakpoint 1 at .... This patch removes this limitation. ( Actually, it's a necessary patch, though not sufficient. That'll start working correctly by the end of the series. With this patch, if try it, you'll see: (gdb) b -f function(i[TAB] (gdb) b -f function i.e., gdb strips everything after the "(". That's caused by some code in symtab.c that'll be eliminated further down the series. These patches are all unfortunately interrelated, which is also the reason new tests only appear much later in the series. But let's ignore that reality for the remainder of the description. ) So... this patch gets rid of the need for quoting. It does that by adding a way for a completer to control the exact completion word point that readline should start the completion request for, instead of letting readline try to figure it out using the current language's word break chars array, and often failing. In the case above, we want the completer to figure out that it's completing a function name that starts with "function(i". It now does. It took me a while to figure out a way to ask readline to "use this exact word point", and for a while I feared that it'd be impossible with current readline (and having to rely on master readline for core functionality is something I'd like to avoid very much). Eventually, after several different attempts, I came up with what is described in the comment above gdb_custom_word_point_brkchars in the patch. With this patch, the handle_brkchars phase of the explicit location completer advances the expected word point as it parses the input line left to right, until it figures out exactly what we're completing, instead of expecting readline to break the string using the word break characters, and then having the completer heuristically fix up a bad decision by parsing the input string backwards. This allows correctly knowning that we're completing a symbol name after -function, complete functions without quoting, etc. Later, we'll make use of this same mechanims to implement a proper linespec completer that avoids need for quoting too. gdb/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * ada-lang.c (ada_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * cli/cli-cmds.c (complete_command): Get the completion result out of the handle_brkchars tracker if used a custom word point. * completer.c: Include "linespec.h". (enum explicit_location_match_type) <MATCH_LINE>: New enumerator. (advance_to_expression_complete_word_point): New. (completion_tracker::completes_to_completion_word): New. (complete_files_symbols): Pass down complete_symbol_mode::EXPRESSION. (explicit_options, probe_options): New. (collect_explicit_location_matches): Complete on the explictit_loc->foo instead of word. Use linespec_complete_function. Handle MATCH_LINE. Handle offering keyword and options completions. (backup_text_ptr): Delete. (skip_keyword): New. (complete_explicit_location): Remove 'word' parameter. Add language, quoted_arg_start and quoted_arg_end parameters. Rewrite, parsing left to right. (location_completer): Rewrite. (location_completer_handle_brkchars): New function. (symbol_completer): Pass down complete_symbol_mode::EXPRESSION. (enum complete_line_internal_reason): Adjust comments. (completion_tracker::discard_completions): New. (completer_handle_brkchars_func_for_completer): Handle location_completer. (gdb_custom_word_point_brkchars) (gdb_org_rl_basic_quote_characters): New. (gdb_completion_word_break_characters_throw) (completion_find_completion_word): Handle trackers that use a custom word point. (completion_tracker::advance_custom_word_point_by): New. (completion_tracker::build_completion_result): Don't rely on readline appending the quote char. (gdb_rl_attempted_completion_function_throw): Handle trackers that use a custom word point. (gdb_rl_attempted_completion_function): Restore rl_basic_quote_characters. * completer.h (class completion_tracker): Extend intro comment. (completion_tracker::set_quote_char) (completion_tracker::quote_char) (completion_tracker::set_use_custom_word_point) (completion_tracker::use_custom_word_point) (completion_tracker::custom_word_point) (completion_tracker::set_custom_word_point) (completion_tracker::advance_custom_word_point_by) (completion_tracker::completes_to_completion_word) (completion_tracker::discard_completions): New methods. (completion_tracker::m_quote_char) (completion_tracker::m_use_custom_word_point) (completion_tracker::m_custom_word_point): New fields. (advance_to_expression_complete_word_point): Declare. * f-lang.c (f_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * language.h (struct language_defn) <la_collect_symbol_completion_matches>: Add complete_symbol_mode parameter. * linespec.c (linespec_keywords): Add NULL terminator. Make extern. (linespec_complete_function): New function. (linespec_lexer_lex_keyword): Adjust. * linespec.h (linespec_keywords, linespec_complete_function): New declarations. * location.c (find_end_quote): New function. (explicit_location_lex_one): Add explicit_completion_info parameter. Save quoting info. Don't throw if being called for completion. Don't handle Ada operators here. (is_cp_operator, skip_op_false_positives, first_of) (explicit_location_lex_one_function): New function. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. Handle it. Don't use explicit_location_lex_one to lex function names. Use explicit_location_lex_one_function instead. * location.h (struct explicit_completion_info): New. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. * symtab.c (default_collect_symbol_completion_matches_break_on): Add complete_symbol_mode parameter. Handle LINESPEC mode. (default_collect_symbol_completion_matches) (collect_symbol_completion_matches): Add complete_symbol_mode parameter. (collect_symbol_completion_matches_type): Pass down complete_symbol_mode::EXPRESSION. (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. Handle LINESPEC mode. * symtab.h (complete_symbol_mode): New. (default_collect_symbol_completion_matches_break_on) (default_collect_symbol_completion_matches) (collect_symbol_completion_matches) (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. gdb/testsuite/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * gdb.linespec/ls-errs.exp (do_test): Adjust expected output.
2017-07-17 21:21:33 +02:00
const char *end = find_end_quote (start + 1, *start);
Explicit locations: add UI features for CLI This patch exposes explicit locations to the CLI user. This enables users to "explicitly" specify attributes of the breakpoint location to avoid any ambiguity that might otherwise exist with linespecs. The general syntax of explicit locations is: -source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME -label LABEL_NAME Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users may use the completer with either options or values. gdb/ChangeLog: * completer.c: Include location.h. (enum match_type): New enum. (location_completer): Rename to ... (linespec_completer): ... this. (collect_explicit_location_matches, backup_text_ptr) (explicit_location_completer): New functions. (location_completer): "New" function; handle linespec and explicit location completions. (complete_line_internal): Remove all location completer-specific handling. * linespec.c (linespec_lexer_lex_keyword, is_ada_operator) (find_toplevel_char): Export. (linespec_parse_line_offset): Export. Issue error if STRING is not numerical. (gdb_get_linespec_parser_quote_characters): New function. * linespec.h (linespec_parse_line_offset): Declare. (get_gdb_linespec_parser_quote_characters): Declare. (is_ada_operator): Declare. (find_toplevel_char): Declare. (linespec_lexer_lex_keyword): Declare. * location.c (explicit_to_event_location): New function. (explicit_location_lex_one): New function. (string_to_explicit_location): New function. (string_to_event_location): Handle explicit locations. * location.h (explicit_to_event_location): Declare. (string_to_explicit_location): Declare. gdb/testsuite/ChangeLog: * gdb.linespec/3explicit.c: New file. * gdb.linespec/cpexplicit.cc: New file. * gdb.linespec/cpexplicit.exp: New file. * gdb.linespec/explicit.c: New file. * gdb.linespec/explicit.exp: New file. * gdb.linespec/explicit2.c: New file. * gdb.linespec/ls-errs.exp: Add explicit location tests. * lib/gdb.exp (capture_command_output): Regexp-escape `command' before using in the matching pattern. Clarify that `prefix' is a regular expression.
2015-08-12 02:09:36 +02:00
Rewrite/enhance explicit locations completer, parse left->right One of the most annoying (to me) things about GDB's completion is when you have overloads in your program, and you want to set a breakpoint in one of them: void function(int); // set breakpoint here. void function(long); (gdb) b -f func[TAB] (gdb) b -f function( # ok, gdb completed as much as possible. (gdb) b -f function([TAB] # show me the overloads, please. <_all_ symbols in the program are shown...> E.g., when debugging GDB, that'd be: (gdb) b -f function([TAB] (anonymous namespace)::get_global()::global pt_insn_get_offset@plt scm_new_port_table_entry asprintf pt_pkt_alloc_decoder scm_new_port_table_entry@plt asprintf@plt pt_pkt_alloc_decoder@plt scm_out_of_range bt_ctf_get_char_array pt_pkt_sync_forward scm_out_of_range@plt bt_ctf_get_char_array@plt pt_pkt_sync_forward@plt scm_putc bt_ctf_get_uint64 pwrite scm_putc@plt bt_ctf_get_uint64@plt pwrite@plt scm_reverse_x bt_ctf_iter_read_event PyErr_Restore scm_reverse_x@plt bt_ctf_iter_read_event@plt PyErr_Restore@plt scm_set_port_filename_x <snip...> Now that's a load of completely useless completions. The reason GDB offers those is that the completer relies on readline figuring out the completion word point in the input line based on the language's word break characters, which include "(". So readline tells the completer to complete on "", the string that is after '('. Likewise, if you type "function(i[TAB]" to try to complete to "int", you're out of luck. GDB shows you all the symbols in the program that start with "i"... This makes sense for the expression completer, as what you'd want to type is e.g., a global variable, say: (gdb) print function(i[TAB] but, it makes no sense when specifying a function name for a breakpoint location. To get around that limitation, users need to quote the function name, like: (gdb) b -f 'function([TAB] function(int) function(long) (gdb) b 'function(i[TAB] (gdb) b 'function(int)' # now completes correctly! Note that the quoting is only necessary for completion. Creating the breakpoint does not require the quoting: (gdb) b -f function(int) [RET] Breakpoint 1 at .... This patch removes this limitation. ( Actually, it's a necessary patch, though not sufficient. That'll start working correctly by the end of the series. With this patch, if try it, you'll see: (gdb) b -f function(i[TAB] (gdb) b -f function i.e., gdb strips everything after the "(". That's caused by some code in symtab.c that'll be eliminated further down the series. These patches are all unfortunately interrelated, which is also the reason new tests only appear much later in the series. But let's ignore that reality for the remainder of the description. ) So... this patch gets rid of the need for quoting. It does that by adding a way for a completer to control the exact completion word point that readline should start the completion request for, instead of letting readline try to figure it out using the current language's word break chars array, and often failing. In the case above, we want the completer to figure out that it's completing a function name that starts with "function(i". It now does. It took me a while to figure out a way to ask readline to "use this exact word point", and for a while I feared that it'd be impossible with current readline (and having to rely on master readline for core functionality is something I'd like to avoid very much). Eventually, after several different attempts, I came up with what is described in the comment above gdb_custom_word_point_brkchars in the patch. With this patch, the handle_brkchars phase of the explicit location completer advances the expected word point as it parses the input line left to right, until it figures out exactly what we're completing, instead of expecting readline to break the string using the word break characters, and then having the completer heuristically fix up a bad decision by parsing the input string backwards. This allows correctly knowning that we're completing a symbol name after -function, complete functions without quoting, etc. Later, we'll make use of this same mechanims to implement a proper linespec completer that avoids need for quoting too. gdb/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * ada-lang.c (ada_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * cli/cli-cmds.c (complete_command): Get the completion result out of the handle_brkchars tracker if used a custom word point. * completer.c: Include "linespec.h". (enum explicit_location_match_type) <MATCH_LINE>: New enumerator. (advance_to_expression_complete_word_point): New. (completion_tracker::completes_to_completion_word): New. (complete_files_symbols): Pass down complete_symbol_mode::EXPRESSION. (explicit_options, probe_options): New. (collect_explicit_location_matches): Complete on the explictit_loc->foo instead of word. Use linespec_complete_function. Handle MATCH_LINE. Handle offering keyword and options completions. (backup_text_ptr): Delete. (skip_keyword): New. (complete_explicit_location): Remove 'word' parameter. Add language, quoted_arg_start and quoted_arg_end parameters. Rewrite, parsing left to right. (location_completer): Rewrite. (location_completer_handle_brkchars): New function. (symbol_completer): Pass down complete_symbol_mode::EXPRESSION. (enum complete_line_internal_reason): Adjust comments. (completion_tracker::discard_completions): New. (completer_handle_brkchars_func_for_completer): Handle location_completer. (gdb_custom_word_point_brkchars) (gdb_org_rl_basic_quote_characters): New. (gdb_completion_word_break_characters_throw) (completion_find_completion_word): Handle trackers that use a custom word point. (completion_tracker::advance_custom_word_point_by): New. (completion_tracker::build_completion_result): Don't rely on readline appending the quote char. (gdb_rl_attempted_completion_function_throw): Handle trackers that use a custom word point. (gdb_rl_attempted_completion_function): Restore rl_basic_quote_characters. * completer.h (class completion_tracker): Extend intro comment. (completion_tracker::set_quote_char) (completion_tracker::quote_char) (completion_tracker::set_use_custom_word_point) (completion_tracker::use_custom_word_point) (completion_tracker::custom_word_point) (completion_tracker::set_custom_word_point) (completion_tracker::advance_custom_word_point_by) (completion_tracker::completes_to_completion_word) (completion_tracker::discard_completions): New methods. (completion_tracker::m_quote_char) (completion_tracker::m_use_custom_word_point) (completion_tracker::m_custom_word_point): New fields. (advance_to_expression_complete_word_point): Declare. * f-lang.c (f_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * language.h (struct language_defn) <la_collect_symbol_completion_matches>: Add complete_symbol_mode parameter. * linespec.c (linespec_keywords): Add NULL terminator. Make extern. (linespec_complete_function): New function. (linespec_lexer_lex_keyword): Adjust. * linespec.h (linespec_keywords, linespec_complete_function): New declarations. * location.c (find_end_quote): New function. (explicit_location_lex_one): Add explicit_completion_info parameter. Save quoting info. Don't throw if being called for completion. Don't handle Ada operators here. (is_cp_operator, skip_op_false_positives, first_of) (explicit_location_lex_one_function): New function. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. Handle it. Don't use explicit_location_lex_one to lex function names. Use explicit_location_lex_one_function instead. * location.h (struct explicit_completion_info): New. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. * symtab.c (default_collect_symbol_completion_matches_break_on): Add complete_symbol_mode parameter. Handle LINESPEC mode. (default_collect_symbol_completion_matches) (collect_symbol_completion_matches): Add complete_symbol_mode parameter. (collect_symbol_completion_matches_type): Pass down complete_symbol_mode::EXPRESSION. (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. Handle LINESPEC mode. * symtab.h (complete_symbol_mode): New. (default_collect_symbol_completion_matches_break_on) (default_collect_symbol_completion_matches) (collect_symbol_completion_matches) (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. gdb/testsuite/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * gdb.linespec/ls-errs.exp (do_test): Adjust expected output.
2017-07-17 21:21:33 +02:00
if (end == NULL)
{
if (completion_info == NULL)
Explicit locations: add UI features for CLI This patch exposes explicit locations to the CLI user. This enables users to "explicitly" specify attributes of the breakpoint location to avoid any ambiguity that might otherwise exist with linespecs. The general syntax of explicit locations is: -source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME -label LABEL_NAME Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users may use the completer with either options or values. gdb/ChangeLog: * completer.c: Include location.h. (enum match_type): New enum. (location_completer): Rename to ... (linespec_completer): ... this. (collect_explicit_location_matches, backup_text_ptr) (explicit_location_completer): New functions. (location_completer): "New" function; handle linespec and explicit location completions. (complete_line_internal): Remove all location completer-specific handling. * linespec.c (linespec_lexer_lex_keyword, is_ada_operator) (find_toplevel_char): Export. (linespec_parse_line_offset): Export. Issue error if STRING is not numerical. (gdb_get_linespec_parser_quote_characters): New function. * linespec.h (linespec_parse_line_offset): Declare. (get_gdb_linespec_parser_quote_characters): Declare. (is_ada_operator): Declare. (find_toplevel_char): Declare. (linespec_lexer_lex_keyword): Declare. * location.c (explicit_to_event_location): New function. (explicit_location_lex_one): New function. (string_to_explicit_location): New function. (string_to_event_location): Handle explicit locations. * location.h (explicit_to_event_location): Declare. (string_to_explicit_location): Declare. gdb/testsuite/ChangeLog: * gdb.linespec/3explicit.c: New file. * gdb.linespec/cpexplicit.cc: New file. * gdb.linespec/cpexplicit.exp: New file. * gdb.linespec/explicit.c: New file. * gdb.linespec/explicit.exp: New file. * gdb.linespec/explicit2.c: New file. * gdb.linespec/ls-errs.exp: Add explicit location tests. * lib/gdb.exp (capture_command_output): Regexp-escape `command' before using in the matching pattern. Clarify that `prefix' is a regular expression.
2015-08-12 02:09:36 +02:00
error (_("Unmatched quote, %s."), start);
Rewrite/enhance explicit locations completer, parse left->right One of the most annoying (to me) things about GDB's completion is when you have overloads in your program, and you want to set a breakpoint in one of them: void function(int); // set breakpoint here. void function(long); (gdb) b -f func[TAB] (gdb) b -f function( # ok, gdb completed as much as possible. (gdb) b -f function([TAB] # show me the overloads, please. <_all_ symbols in the program are shown...> E.g., when debugging GDB, that'd be: (gdb) b -f function([TAB] (anonymous namespace)::get_global()::global pt_insn_get_offset@plt scm_new_port_table_entry asprintf pt_pkt_alloc_decoder scm_new_port_table_entry@plt asprintf@plt pt_pkt_alloc_decoder@plt scm_out_of_range bt_ctf_get_char_array pt_pkt_sync_forward scm_out_of_range@plt bt_ctf_get_char_array@plt pt_pkt_sync_forward@plt scm_putc bt_ctf_get_uint64 pwrite scm_putc@plt bt_ctf_get_uint64@plt pwrite@plt scm_reverse_x bt_ctf_iter_read_event PyErr_Restore scm_reverse_x@plt bt_ctf_iter_read_event@plt PyErr_Restore@plt scm_set_port_filename_x <snip...> Now that's a load of completely useless completions. The reason GDB offers those is that the completer relies on readline figuring out the completion word point in the input line based on the language's word break characters, which include "(". So readline tells the completer to complete on "", the string that is after '('. Likewise, if you type "function(i[TAB]" to try to complete to "int", you're out of luck. GDB shows you all the symbols in the program that start with "i"... This makes sense for the expression completer, as what you'd want to type is e.g., a global variable, say: (gdb) print function(i[TAB] but, it makes no sense when specifying a function name for a breakpoint location. To get around that limitation, users need to quote the function name, like: (gdb) b -f 'function([TAB] function(int) function(long) (gdb) b 'function(i[TAB] (gdb) b 'function(int)' # now completes correctly! Note that the quoting is only necessary for completion. Creating the breakpoint does not require the quoting: (gdb) b -f function(int) [RET] Breakpoint 1 at .... This patch removes this limitation. ( Actually, it's a necessary patch, though not sufficient. That'll start working correctly by the end of the series. With this patch, if try it, you'll see: (gdb) b -f function(i[TAB] (gdb) b -f function i.e., gdb strips everything after the "(". That's caused by some code in symtab.c that'll be eliminated further down the series. These patches are all unfortunately interrelated, which is also the reason new tests only appear much later in the series. But let's ignore that reality for the remainder of the description. ) So... this patch gets rid of the need for quoting. It does that by adding a way for a completer to control the exact completion word point that readline should start the completion request for, instead of letting readline try to figure it out using the current language's word break chars array, and often failing. In the case above, we want the completer to figure out that it's completing a function name that starts with "function(i". It now does. It took me a while to figure out a way to ask readline to "use this exact word point", and for a while I feared that it'd be impossible with current readline (and having to rely on master readline for core functionality is something I'd like to avoid very much). Eventually, after several different attempts, I came up with what is described in the comment above gdb_custom_word_point_brkchars in the patch. With this patch, the handle_brkchars phase of the explicit location completer advances the expected word point as it parses the input line left to right, until it figures out exactly what we're completing, instead of expecting readline to break the string using the word break characters, and then having the completer heuristically fix up a bad decision by parsing the input string backwards. This allows correctly knowning that we're completing a symbol name after -function, complete functions without quoting, etc. Later, we'll make use of this same mechanims to implement a proper linespec completer that avoids need for quoting too. gdb/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * ada-lang.c (ada_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * cli/cli-cmds.c (complete_command): Get the completion result out of the handle_brkchars tracker if used a custom word point. * completer.c: Include "linespec.h". (enum explicit_location_match_type) <MATCH_LINE>: New enumerator. (advance_to_expression_complete_word_point): New. (completion_tracker::completes_to_completion_word): New. (complete_files_symbols): Pass down complete_symbol_mode::EXPRESSION. (explicit_options, probe_options): New. (collect_explicit_location_matches): Complete on the explictit_loc->foo instead of word. Use linespec_complete_function. Handle MATCH_LINE. Handle offering keyword and options completions. (backup_text_ptr): Delete. (skip_keyword): New. (complete_explicit_location): Remove 'word' parameter. Add language, quoted_arg_start and quoted_arg_end parameters. Rewrite, parsing left to right. (location_completer): Rewrite. (location_completer_handle_brkchars): New function. (symbol_completer): Pass down complete_symbol_mode::EXPRESSION. (enum complete_line_internal_reason): Adjust comments. (completion_tracker::discard_completions): New. (completer_handle_brkchars_func_for_completer): Handle location_completer. (gdb_custom_word_point_brkchars) (gdb_org_rl_basic_quote_characters): New. (gdb_completion_word_break_characters_throw) (completion_find_completion_word): Handle trackers that use a custom word point. (completion_tracker::advance_custom_word_point_by): New. (completion_tracker::build_completion_result): Don't rely on readline appending the quote char. (gdb_rl_attempted_completion_function_throw): Handle trackers that use a custom word point. (gdb_rl_attempted_completion_function): Restore rl_basic_quote_characters. * completer.h (class completion_tracker): Extend intro comment. (completion_tracker::set_quote_char) (completion_tracker::quote_char) (completion_tracker::set_use_custom_word_point) (completion_tracker::use_custom_word_point) (completion_tracker::custom_word_point) (completion_tracker::set_custom_word_point) (completion_tracker::advance_custom_word_point_by) (completion_tracker::completes_to_completion_word) (completion_tracker::discard_completions): New methods. (completion_tracker::m_quote_char) (completion_tracker::m_use_custom_word_point) (completion_tracker::m_custom_word_point): New fields. (advance_to_expression_complete_word_point): Declare. * f-lang.c (f_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * language.h (struct language_defn) <la_collect_symbol_completion_matches>: Add complete_symbol_mode parameter. * linespec.c (linespec_keywords): Add NULL terminator. Make extern. (linespec_complete_function): New function. (linespec_lexer_lex_keyword): Adjust. * linespec.h (linespec_keywords, linespec_complete_function): New declarations. * location.c (find_end_quote): New function. (explicit_location_lex_one): Add explicit_completion_info parameter. Save quoting info. Don't throw if being called for completion. Don't handle Ada operators here. (is_cp_operator, skip_op_false_positives, first_of) (explicit_location_lex_one_function): New function. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. Handle it. Don't use explicit_location_lex_one to lex function names. Use explicit_location_lex_one_function instead. * location.h (struct explicit_completion_info): New. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. * symtab.c (default_collect_symbol_completion_matches_break_on): Add complete_symbol_mode parameter. Handle LINESPEC mode. (default_collect_symbol_completion_matches) (collect_symbol_completion_matches): Add complete_symbol_mode parameter. (collect_symbol_completion_matches_type): Pass down complete_symbol_mode::EXPRESSION. (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. Handle LINESPEC mode. * symtab.h (complete_symbol_mode): New. (default_collect_symbol_completion_matches_break_on) (default_collect_symbol_completion_matches) (collect_symbol_completion_matches) (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. gdb/testsuite/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * gdb.linespec/ls-errs.exp (do_test): Adjust expected output.
2017-07-17 21:21:33 +02:00
end = start + strlen (start);
*inp = end;
return gdb::unique_xmalloc_ptr<char> (savestring (start + 1,
Rewrite/enhance explicit locations completer, parse left->right One of the most annoying (to me) things about GDB's completion is when you have overloads in your program, and you want to set a breakpoint in one of them: void function(int); // set breakpoint here. void function(long); (gdb) b -f func[TAB] (gdb) b -f function( # ok, gdb completed as much as possible. (gdb) b -f function([TAB] # show me the overloads, please. <_all_ symbols in the program are shown...> E.g., when debugging GDB, that'd be: (gdb) b -f function([TAB] (anonymous namespace)::get_global()::global pt_insn_get_offset@plt scm_new_port_table_entry asprintf pt_pkt_alloc_decoder scm_new_port_table_entry@plt asprintf@plt pt_pkt_alloc_decoder@plt scm_out_of_range bt_ctf_get_char_array pt_pkt_sync_forward scm_out_of_range@plt bt_ctf_get_char_array@plt pt_pkt_sync_forward@plt scm_putc bt_ctf_get_uint64 pwrite scm_putc@plt bt_ctf_get_uint64@plt pwrite@plt scm_reverse_x bt_ctf_iter_read_event PyErr_Restore scm_reverse_x@plt bt_ctf_iter_read_event@plt PyErr_Restore@plt scm_set_port_filename_x <snip...> Now that's a load of completely useless completions. The reason GDB offers those is that the completer relies on readline figuring out the completion word point in the input line based on the language's word break characters, which include "(". So readline tells the completer to complete on "", the string that is after '('. Likewise, if you type "function(i[TAB]" to try to complete to "int", you're out of luck. GDB shows you all the symbols in the program that start with "i"... This makes sense for the expression completer, as what you'd want to type is e.g., a global variable, say: (gdb) print function(i[TAB] but, it makes no sense when specifying a function name for a breakpoint location. To get around that limitation, users need to quote the function name, like: (gdb) b -f 'function([TAB] function(int) function(long) (gdb) b 'function(i[TAB] (gdb) b 'function(int)' # now completes correctly! Note that the quoting is only necessary for completion. Creating the breakpoint does not require the quoting: (gdb) b -f function(int) [RET] Breakpoint 1 at .... This patch removes this limitation. ( Actually, it's a necessary patch, though not sufficient. That'll start working correctly by the end of the series. With this patch, if try it, you'll see: (gdb) b -f function(i[TAB] (gdb) b -f function i.e., gdb strips everything after the "(". That's caused by some code in symtab.c that'll be eliminated further down the series. These patches are all unfortunately interrelated, which is also the reason new tests only appear much later in the series. But let's ignore that reality for the remainder of the description. ) So... this patch gets rid of the need for quoting. It does that by adding a way for a completer to control the exact completion word point that readline should start the completion request for, instead of letting readline try to figure it out using the current language's word break chars array, and often failing. In the case above, we want the completer to figure out that it's completing a function name that starts with "function(i". It now does. It took me a while to figure out a way to ask readline to "use this exact word point", and for a while I feared that it'd be impossible with current readline (and having to rely on master readline for core functionality is something I'd like to avoid very much). Eventually, after several different attempts, I came up with what is described in the comment above gdb_custom_word_point_brkchars in the patch. With this patch, the handle_brkchars phase of the explicit location completer advances the expected word point as it parses the input line left to right, until it figures out exactly what we're completing, instead of expecting readline to break the string using the word break characters, and then having the completer heuristically fix up a bad decision by parsing the input string backwards. This allows correctly knowning that we're completing a symbol name after -function, complete functions without quoting, etc. Later, we'll make use of this same mechanims to implement a proper linespec completer that avoids need for quoting too. gdb/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * ada-lang.c (ada_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * cli/cli-cmds.c (complete_command): Get the completion result out of the handle_brkchars tracker if used a custom word point. * completer.c: Include "linespec.h". (enum explicit_location_match_type) <MATCH_LINE>: New enumerator. (advance_to_expression_complete_word_point): New. (completion_tracker::completes_to_completion_word): New. (complete_files_symbols): Pass down complete_symbol_mode::EXPRESSION. (explicit_options, probe_options): New. (collect_explicit_location_matches): Complete on the explictit_loc->foo instead of word. Use linespec_complete_function. Handle MATCH_LINE. Handle offering keyword and options completions. (backup_text_ptr): Delete. (skip_keyword): New. (complete_explicit_location): Remove 'word' parameter. Add language, quoted_arg_start and quoted_arg_end parameters. Rewrite, parsing left to right. (location_completer): Rewrite. (location_completer_handle_brkchars): New function. (symbol_completer): Pass down complete_symbol_mode::EXPRESSION. (enum complete_line_internal_reason): Adjust comments. (completion_tracker::discard_completions): New. (completer_handle_brkchars_func_for_completer): Handle location_completer. (gdb_custom_word_point_brkchars) (gdb_org_rl_basic_quote_characters): New. (gdb_completion_word_break_characters_throw) (completion_find_completion_word): Handle trackers that use a custom word point. (completion_tracker::advance_custom_word_point_by): New. (completion_tracker::build_completion_result): Don't rely on readline appending the quote char. (gdb_rl_attempted_completion_function_throw): Handle trackers that use a custom word point. (gdb_rl_attempted_completion_function): Restore rl_basic_quote_characters. * completer.h (class completion_tracker): Extend intro comment. (completion_tracker::set_quote_char) (completion_tracker::quote_char) (completion_tracker::set_use_custom_word_point) (completion_tracker::use_custom_word_point) (completion_tracker::custom_word_point) (completion_tracker::set_custom_word_point) (completion_tracker::advance_custom_word_point_by) (completion_tracker::completes_to_completion_word) (completion_tracker::discard_completions): New methods. (completion_tracker::m_quote_char) (completion_tracker::m_use_custom_word_point) (completion_tracker::m_custom_word_point): New fields. (advance_to_expression_complete_word_point): Declare. * f-lang.c (f_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * language.h (struct language_defn) <la_collect_symbol_completion_matches>: Add complete_symbol_mode parameter. * linespec.c (linespec_keywords): Add NULL terminator. Make extern. (linespec_complete_function): New function. (linespec_lexer_lex_keyword): Adjust. * linespec.h (linespec_keywords, linespec_complete_function): New declarations. * location.c (find_end_quote): New function. (explicit_location_lex_one): Add explicit_completion_info parameter. Save quoting info. Don't throw if being called for completion. Don't handle Ada operators here. (is_cp_operator, skip_op_false_positives, first_of) (explicit_location_lex_one_function): New function. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. Handle it. Don't use explicit_location_lex_one to lex function names. Use explicit_location_lex_one_function instead. * location.h (struct explicit_completion_info): New. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. * symtab.c (default_collect_symbol_completion_matches_break_on): Add complete_symbol_mode parameter. Handle LINESPEC mode. (default_collect_symbol_completion_matches) (collect_symbol_completion_matches): Add complete_symbol_mode parameter. (collect_symbol_completion_matches_type): Pass down complete_symbol_mode::EXPRESSION. (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. Handle LINESPEC mode. * symtab.h (complete_symbol_mode): New. (default_collect_symbol_completion_matches_break_on) (default_collect_symbol_completion_matches) (collect_symbol_completion_matches) (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. gdb/testsuite/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * gdb.linespec/ls-errs.exp (do_test): Adjust expected output.
2017-07-17 21:21:33 +02:00
*inp - start - 1));
Explicit locations: add UI features for CLI This patch exposes explicit locations to the CLI user. This enables users to "explicitly" specify attributes of the breakpoint location to avoid any ambiguity that might otherwise exist with linespecs. The general syntax of explicit locations is: -source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME -label LABEL_NAME Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users may use the completer with either options or values. gdb/ChangeLog: * completer.c: Include location.h. (enum match_type): New enum. (location_completer): Rename to ... (linespec_completer): ... this. (collect_explicit_location_matches, backup_text_ptr) (explicit_location_completer): New functions. (location_completer): "New" function; handle linespec and explicit location completions. (complete_line_internal): Remove all location completer-specific handling. * linespec.c (linespec_lexer_lex_keyword, is_ada_operator) (find_toplevel_char): Export. (linespec_parse_line_offset): Export. Issue error if STRING is not numerical. (gdb_get_linespec_parser_quote_characters): New function. * linespec.h (linespec_parse_line_offset): Declare. (get_gdb_linespec_parser_quote_characters): Declare. (is_ada_operator): Declare. (find_toplevel_char): Declare. (linespec_lexer_lex_keyword): Declare. * location.c (explicit_to_event_location): New function. (explicit_location_lex_one): New function. (string_to_explicit_location): New function. (string_to_event_location): Handle explicit locations. * location.h (explicit_to_event_location): Declare. (string_to_explicit_location): Declare. gdb/testsuite/ChangeLog: * gdb.linespec/3explicit.c: New file. * gdb.linespec/cpexplicit.cc: New file. * gdb.linespec/cpexplicit.exp: New file. * gdb.linespec/explicit.c: New file. * gdb.linespec/explicit.exp: New file. * gdb.linespec/explicit2.c: New file. * gdb.linespec/ls-errs.exp: Add explicit location tests. * lib/gdb.exp (capture_command_output): Regexp-escape `command' before using in the matching pattern. Clarify that `prefix' is a regular expression.
2015-08-12 02:09:36 +02:00
}
Rewrite/enhance explicit locations completer, parse left->right One of the most annoying (to me) things about GDB's completion is when you have overloads in your program, and you want to set a breakpoint in one of them: void function(int); // set breakpoint here. void function(long); (gdb) b -f func[TAB] (gdb) b -f function( # ok, gdb completed as much as possible. (gdb) b -f function([TAB] # show me the overloads, please. <_all_ symbols in the program are shown...> E.g., when debugging GDB, that'd be: (gdb) b -f function([TAB] (anonymous namespace)::get_global()::global pt_insn_get_offset@plt scm_new_port_table_entry asprintf pt_pkt_alloc_decoder scm_new_port_table_entry@plt asprintf@plt pt_pkt_alloc_decoder@plt scm_out_of_range bt_ctf_get_char_array pt_pkt_sync_forward scm_out_of_range@plt bt_ctf_get_char_array@plt pt_pkt_sync_forward@plt scm_putc bt_ctf_get_uint64 pwrite scm_putc@plt bt_ctf_get_uint64@plt pwrite@plt scm_reverse_x bt_ctf_iter_read_event PyErr_Restore scm_reverse_x@plt bt_ctf_iter_read_event@plt PyErr_Restore@plt scm_set_port_filename_x <snip...> Now that's a load of completely useless completions. The reason GDB offers those is that the completer relies on readline figuring out the completion word point in the input line based on the language's word break characters, which include "(". So readline tells the completer to complete on "", the string that is after '('. Likewise, if you type "function(i[TAB]" to try to complete to "int", you're out of luck. GDB shows you all the symbols in the program that start with "i"... This makes sense for the expression completer, as what you'd want to type is e.g., a global variable, say: (gdb) print function(i[TAB] but, it makes no sense when specifying a function name for a breakpoint location. To get around that limitation, users need to quote the function name, like: (gdb) b -f 'function([TAB] function(int) function(long) (gdb) b 'function(i[TAB] (gdb) b 'function(int)' # now completes correctly! Note that the quoting is only necessary for completion. Creating the breakpoint does not require the quoting: (gdb) b -f function(int) [RET] Breakpoint 1 at .... This patch removes this limitation. ( Actually, it's a necessary patch, though not sufficient. That'll start working correctly by the end of the series. With this patch, if try it, you'll see: (gdb) b -f function(i[TAB] (gdb) b -f function i.e., gdb strips everything after the "(". That's caused by some code in symtab.c that'll be eliminated further down the series. These patches are all unfortunately interrelated, which is also the reason new tests only appear much later in the series. But let's ignore that reality for the remainder of the description. ) So... this patch gets rid of the need for quoting. It does that by adding a way for a completer to control the exact completion word point that readline should start the completion request for, instead of letting readline try to figure it out using the current language's word break chars array, and often failing. In the case above, we want the completer to figure out that it's completing a function name that starts with "function(i". It now does. It took me a while to figure out a way to ask readline to "use this exact word point", and for a while I feared that it'd be impossible with current readline (and having to rely on master readline for core functionality is something I'd like to avoid very much). Eventually, after several different attempts, I came up with what is described in the comment above gdb_custom_word_point_brkchars in the patch. With this patch, the handle_brkchars phase of the explicit location completer advances the expected word point as it parses the input line left to right, until it figures out exactly what we're completing, instead of expecting readline to break the string using the word break characters, and then having the completer heuristically fix up a bad decision by parsing the input string backwards. This allows correctly knowning that we're completing a symbol name after -function, complete functions without quoting, etc. Later, we'll make use of this same mechanims to implement a proper linespec completer that avoids need for quoting too. gdb/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * ada-lang.c (ada_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * cli/cli-cmds.c (complete_command): Get the completion result out of the handle_brkchars tracker if used a custom word point. * completer.c: Include "linespec.h". (enum explicit_location_match_type) <MATCH_LINE>: New enumerator. (advance_to_expression_complete_word_point): New. (completion_tracker::completes_to_completion_word): New. (complete_files_symbols): Pass down complete_symbol_mode::EXPRESSION. (explicit_options, probe_options): New. (collect_explicit_location_matches): Complete on the explictit_loc->foo instead of word. Use linespec_complete_function. Handle MATCH_LINE. Handle offering keyword and options completions. (backup_text_ptr): Delete. (skip_keyword): New. (complete_explicit_location): Remove 'word' parameter. Add language, quoted_arg_start and quoted_arg_end parameters. Rewrite, parsing left to right. (location_completer): Rewrite. (location_completer_handle_brkchars): New function. (symbol_completer): Pass down complete_symbol_mode::EXPRESSION. (enum complete_line_internal_reason): Adjust comments. (completion_tracker::discard_completions): New. (completer_handle_brkchars_func_for_completer): Handle location_completer. (gdb_custom_word_point_brkchars) (gdb_org_rl_basic_quote_characters): New. (gdb_completion_word_break_characters_throw) (completion_find_completion_word): Handle trackers that use a custom word point. (completion_tracker::advance_custom_word_point_by): New. (completion_tracker::build_completion_result): Don't rely on readline appending the quote char. (gdb_rl_attempted_completion_function_throw): Handle trackers that use a custom word point. (gdb_rl_attempted_completion_function): Restore rl_basic_quote_characters. * completer.h (class completion_tracker): Extend intro comment. (completion_tracker::set_quote_char) (completion_tracker::quote_char) (completion_tracker::set_use_custom_word_point) (completion_tracker::use_custom_word_point) (completion_tracker::custom_word_point) (completion_tracker::set_custom_word_point) (completion_tracker::advance_custom_word_point_by) (completion_tracker::completes_to_completion_word) (completion_tracker::discard_completions): New methods. (completion_tracker::m_quote_char) (completion_tracker::m_use_custom_word_point) (completion_tracker::m_custom_word_point): New fields. (advance_to_expression_complete_word_point): Declare. * f-lang.c (f_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * language.h (struct language_defn) <la_collect_symbol_completion_matches>: Add complete_symbol_mode parameter. * linespec.c (linespec_keywords): Add NULL terminator. Make extern. (linespec_complete_function): New function. (linespec_lexer_lex_keyword): Adjust. * linespec.h (linespec_keywords, linespec_complete_function): New declarations. * location.c (find_end_quote): New function. (explicit_location_lex_one): Add explicit_completion_info parameter. Save quoting info. Don't throw if being called for completion. Don't handle Ada operators here. (is_cp_operator, skip_op_false_positives, first_of) (explicit_location_lex_one_function): New function. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. Handle it. Don't use explicit_location_lex_one to lex function names. Use explicit_location_lex_one_function instead. * location.h (struct explicit_completion_info): New. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. * symtab.c (default_collect_symbol_completion_matches_break_on): Add complete_symbol_mode parameter. Handle LINESPEC mode. (default_collect_symbol_completion_matches) (collect_symbol_completion_matches): Add complete_symbol_mode parameter. (collect_symbol_completion_matches_type): Pass down complete_symbol_mode::EXPRESSION. (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. Handle LINESPEC mode. * symtab.h (complete_symbol_mode): New. (default_collect_symbol_completion_matches_break_on) (default_collect_symbol_completion_matches) (collect_symbol_completion_matches) (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. gdb/testsuite/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * gdb.linespec/ls-errs.exp (do_test): Adjust expected output.
2017-07-17 21:21:33 +02:00
if (completion_info != NULL)
completion_info->quoted_arg_end = end;
*inp = end + 1;
return gdb::unique_xmalloc_ptr<char> (savestring (start + 1,
*inp - start - 2));
Explicit locations: add UI features for CLI This patch exposes explicit locations to the CLI user. This enables users to "explicitly" specify attributes of the breakpoint location to avoid any ambiguity that might otherwise exist with linespecs. The general syntax of explicit locations is: -source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME -label LABEL_NAME Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users may use the completer with either options or values. gdb/ChangeLog: * completer.c: Include location.h. (enum match_type): New enum. (location_completer): Rename to ... (linespec_completer): ... this. (collect_explicit_location_matches, backup_text_ptr) (explicit_location_completer): New functions. (location_completer): "New" function; handle linespec and explicit location completions. (complete_line_internal): Remove all location completer-specific handling. * linespec.c (linespec_lexer_lex_keyword, is_ada_operator) (find_toplevel_char): Export. (linespec_parse_line_offset): Export. Issue error if STRING is not numerical. (gdb_get_linespec_parser_quote_characters): New function. * linespec.h (linespec_parse_line_offset): Declare. (get_gdb_linespec_parser_quote_characters): Declare. (is_ada_operator): Declare. (find_toplevel_char): Declare. (linespec_lexer_lex_keyword): Declare. * location.c (explicit_to_event_location): New function. (explicit_location_lex_one): New function. (string_to_explicit_location): New function. (string_to_event_location): Handle explicit locations. * location.h (explicit_to_event_location): Declare. (string_to_explicit_location): Declare. gdb/testsuite/ChangeLog: * gdb.linespec/3explicit.c: New file. * gdb.linespec/cpexplicit.cc: New file. * gdb.linespec/cpexplicit.exp: New file. * gdb.linespec/explicit.c: New file. * gdb.linespec/explicit.exp: New file. * gdb.linespec/explicit2.c: New file. * gdb.linespec/ls-errs.exp: Add explicit location tests. * lib/gdb.exp (capture_command_output): Regexp-escape `command' before using in the matching pattern. Clarify that `prefix' is a regular expression.
2015-08-12 02:09:36 +02:00
}
/* If the input starts with '-' or '+', the string ends with the next
whitespace or comma. */
if (*start == '-' || *start == '+')
{
while (*inp[0] != '\0' && *inp[0] != ',' && !isspace (*inp[0]))
++(*inp);
}
else
{
/* Handle numbers first, stopping at the next whitespace or ','. */
while (isdigit (*inp[0]))
++(*inp);
if (*inp[0] == '\0' || isspace (*inp[0]) || *inp[0] == ',')
return gdb::unique_xmalloc_ptr<char> (savestring (start,
*inp - start));
Explicit locations: add UI features for CLI This patch exposes explicit locations to the CLI user. This enables users to "explicitly" specify attributes of the breakpoint location to avoid any ambiguity that might otherwise exist with linespecs. The general syntax of explicit locations is: -source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME -label LABEL_NAME Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users may use the completer with either options or values. gdb/ChangeLog: * completer.c: Include location.h. (enum match_type): New enum. (location_completer): Rename to ... (linespec_completer): ... this. (collect_explicit_location_matches, backup_text_ptr) (explicit_location_completer): New functions. (location_completer): "New" function; handle linespec and explicit location completions. (complete_line_internal): Remove all location completer-specific handling. * linespec.c (linespec_lexer_lex_keyword, is_ada_operator) (find_toplevel_char): Export. (linespec_parse_line_offset): Export. Issue error if STRING is not numerical. (gdb_get_linespec_parser_quote_characters): New function. * linespec.h (linespec_parse_line_offset): Declare. (get_gdb_linespec_parser_quote_characters): Declare. (is_ada_operator): Declare. (find_toplevel_char): Declare. (linespec_lexer_lex_keyword): Declare. * location.c (explicit_to_event_location): New function. (explicit_location_lex_one): New function. (string_to_explicit_location): New function. (string_to_event_location): Handle explicit locations. * location.h (explicit_to_event_location): Declare. (string_to_explicit_location): Declare. gdb/testsuite/ChangeLog: * gdb.linespec/3explicit.c: New file. * gdb.linespec/cpexplicit.cc: New file. * gdb.linespec/cpexplicit.exp: New file. * gdb.linespec/explicit.c: New file. * gdb.linespec/explicit.exp: New file. * gdb.linespec/explicit2.c: New file. * gdb.linespec/ls-errs.exp: Add explicit location tests. * lib/gdb.exp (capture_command_output): Regexp-escape `command' before using in the matching pattern. Clarify that `prefix' is a regular expression.
2015-08-12 02:09:36 +02:00
/* Otherwise stop at the next occurrence of whitespace, '\0',
keyword, or ','. */
*inp = start;
while ((*inp)[0]
&& (*inp)[0] != ','
&& !(isspace ((*inp)[0])
|| linespec_lexer_lex_keyword (&(*inp)[1])))
{
/* Special case: C++ operator,. */
if (language->la_language == language_cplus
&& startswith (*inp, CP_OPERATOR_STR))
(*inp) += CP_OPERATOR_LEN;
Explicit locations: add UI features for CLI This patch exposes explicit locations to the CLI user. This enables users to "explicitly" specify attributes of the breakpoint location to avoid any ambiguity that might otherwise exist with linespecs. The general syntax of explicit locations is: -source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME -label LABEL_NAME Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users may use the completer with either options or values. gdb/ChangeLog: * completer.c: Include location.h. (enum match_type): New enum. (location_completer): Rename to ... (linespec_completer): ... this. (collect_explicit_location_matches, backup_text_ptr) (explicit_location_completer): New functions. (location_completer): "New" function; handle linespec and explicit location completions. (complete_line_internal): Remove all location completer-specific handling. * linespec.c (linespec_lexer_lex_keyword, is_ada_operator) (find_toplevel_char): Export. (linespec_parse_line_offset): Export. Issue error if STRING is not numerical. (gdb_get_linespec_parser_quote_characters): New function. * linespec.h (linespec_parse_line_offset): Declare. (get_gdb_linespec_parser_quote_characters): Declare. (is_ada_operator): Declare. (find_toplevel_char): Declare. (linespec_lexer_lex_keyword): Declare. * location.c (explicit_to_event_location): New function. (explicit_location_lex_one): New function. (string_to_explicit_location): New function. (string_to_event_location): Handle explicit locations. * location.h (explicit_to_event_location): Declare. (string_to_explicit_location): Declare. gdb/testsuite/ChangeLog: * gdb.linespec/3explicit.c: New file. * gdb.linespec/cpexplicit.cc: New file. * gdb.linespec/cpexplicit.exp: New file. * gdb.linespec/explicit.c: New file. * gdb.linespec/explicit.exp: New file. * gdb.linespec/explicit2.c: New file. * gdb.linespec/ls-errs.exp: Add explicit location tests. * lib/gdb.exp (capture_command_output): Regexp-escape `command' before using in the matching pattern. Clarify that `prefix' is a regular expression.
2015-08-12 02:09:36 +02:00
++(*inp);
}
}
if (*inp - start > 0)
return gdb::unique_xmalloc_ptr<char> (savestring (start, *inp - start));
Explicit locations: add UI features for CLI This patch exposes explicit locations to the CLI user. This enables users to "explicitly" specify attributes of the breakpoint location to avoid any ambiguity that might otherwise exist with linespecs. The general syntax of explicit locations is: -source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME -label LABEL_NAME Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users may use the completer with either options or values. gdb/ChangeLog: * completer.c: Include location.h. (enum match_type): New enum. (location_completer): Rename to ... (linespec_completer): ... this. (collect_explicit_location_matches, backup_text_ptr) (explicit_location_completer): New functions. (location_completer): "New" function; handle linespec and explicit location completions. (complete_line_internal): Remove all location completer-specific handling. * linespec.c (linespec_lexer_lex_keyword, is_ada_operator) (find_toplevel_char): Export. (linespec_parse_line_offset): Export. Issue error if STRING is not numerical. (gdb_get_linespec_parser_quote_characters): New function. * linespec.h (linespec_parse_line_offset): Declare. (get_gdb_linespec_parser_quote_characters): Declare. (is_ada_operator): Declare. (find_toplevel_char): Declare. (linespec_lexer_lex_keyword): Declare. * location.c (explicit_to_event_location): New function. (explicit_location_lex_one): New function. (string_to_explicit_location): New function. (string_to_event_location): Handle explicit locations. * location.h (explicit_to_event_location): Declare. (string_to_explicit_location): Declare. gdb/testsuite/ChangeLog: * gdb.linespec/3explicit.c: New file. * gdb.linespec/cpexplicit.cc: New file. * gdb.linespec/cpexplicit.exp: New file. * gdb.linespec/explicit.c: New file. * gdb.linespec/explicit.exp: New file. * gdb.linespec/explicit2.c: New file. * gdb.linespec/ls-errs.exp: Add explicit location tests. * lib/gdb.exp (capture_command_output): Regexp-escape `command' before using in the matching pattern. Clarify that `prefix' is a regular expression.
2015-08-12 02:09:36 +02:00
return NULL;
}
Rewrite/enhance explicit locations completer, parse left->right One of the most annoying (to me) things about GDB's completion is when you have overloads in your program, and you want to set a breakpoint in one of them: void function(int); // set breakpoint here. void function(long); (gdb) b -f func[TAB] (gdb) b -f function( # ok, gdb completed as much as possible. (gdb) b -f function([TAB] # show me the overloads, please. <_all_ symbols in the program are shown...> E.g., when debugging GDB, that'd be: (gdb) b -f function([TAB] (anonymous namespace)::get_global()::global pt_insn_get_offset@plt scm_new_port_table_entry asprintf pt_pkt_alloc_decoder scm_new_port_table_entry@plt asprintf@plt pt_pkt_alloc_decoder@plt scm_out_of_range bt_ctf_get_char_array pt_pkt_sync_forward scm_out_of_range@plt bt_ctf_get_char_array@plt pt_pkt_sync_forward@plt scm_putc bt_ctf_get_uint64 pwrite scm_putc@plt bt_ctf_get_uint64@plt pwrite@plt scm_reverse_x bt_ctf_iter_read_event PyErr_Restore scm_reverse_x@plt bt_ctf_iter_read_event@plt PyErr_Restore@plt scm_set_port_filename_x <snip...> Now that's a load of completely useless completions. The reason GDB offers those is that the completer relies on readline figuring out the completion word point in the input line based on the language's word break characters, which include "(". So readline tells the completer to complete on "", the string that is after '('. Likewise, if you type "function(i[TAB]" to try to complete to "int", you're out of luck. GDB shows you all the symbols in the program that start with "i"... This makes sense for the expression completer, as what you'd want to type is e.g., a global variable, say: (gdb) print function(i[TAB] but, it makes no sense when specifying a function name for a breakpoint location. To get around that limitation, users need to quote the function name, like: (gdb) b -f 'function([TAB] function(int) function(long) (gdb) b 'function(i[TAB] (gdb) b 'function(int)' # now completes correctly! Note that the quoting is only necessary for completion. Creating the breakpoint does not require the quoting: (gdb) b -f function(int) [RET] Breakpoint 1 at .... This patch removes this limitation. ( Actually, it's a necessary patch, though not sufficient. That'll start working correctly by the end of the series. With this patch, if try it, you'll see: (gdb) b -f function(i[TAB] (gdb) b -f function i.e., gdb strips everything after the "(". That's caused by some code in symtab.c that'll be eliminated further down the series. These patches are all unfortunately interrelated, which is also the reason new tests only appear much later in the series. But let's ignore that reality for the remainder of the description. ) So... this patch gets rid of the need for quoting. It does that by adding a way for a completer to control the exact completion word point that readline should start the completion request for, instead of letting readline try to figure it out using the current language's word break chars array, and often failing. In the case above, we want the completer to figure out that it's completing a function name that starts with "function(i". It now does. It took me a while to figure out a way to ask readline to "use this exact word point", and for a while I feared that it'd be impossible with current readline (and having to rely on master readline for core functionality is something I'd like to avoid very much). Eventually, after several different attempts, I came up with what is described in the comment above gdb_custom_word_point_brkchars in the patch. With this patch, the handle_brkchars phase of the explicit location completer advances the expected word point as it parses the input line left to right, until it figures out exactly what we're completing, instead of expecting readline to break the string using the word break characters, and then having the completer heuristically fix up a bad decision by parsing the input string backwards. This allows correctly knowning that we're completing a symbol name after -function, complete functions without quoting, etc. Later, we'll make use of this same mechanims to implement a proper linespec completer that avoids need for quoting too. gdb/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * ada-lang.c (ada_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * cli/cli-cmds.c (complete_command): Get the completion result out of the handle_brkchars tracker if used a custom word point. * completer.c: Include "linespec.h". (enum explicit_location_match_type) <MATCH_LINE>: New enumerator. (advance_to_expression_complete_word_point): New. (completion_tracker::completes_to_completion_word): New. (complete_files_symbols): Pass down complete_symbol_mode::EXPRESSION. (explicit_options, probe_options): New. (collect_explicit_location_matches): Complete on the explictit_loc->foo instead of word. Use linespec_complete_function. Handle MATCH_LINE. Handle offering keyword and options completions. (backup_text_ptr): Delete. (skip_keyword): New. (complete_explicit_location): Remove 'word' parameter. Add language, quoted_arg_start and quoted_arg_end parameters. Rewrite, parsing left to right. (location_completer): Rewrite. (location_completer_handle_brkchars): New function. (symbol_completer): Pass down complete_symbol_mode::EXPRESSION. (enum complete_line_internal_reason): Adjust comments. (completion_tracker::discard_completions): New. (completer_handle_brkchars_func_for_completer): Handle location_completer. (gdb_custom_word_point_brkchars) (gdb_org_rl_basic_quote_characters): New. (gdb_completion_word_break_characters_throw) (completion_find_completion_word): Handle trackers that use a custom word point. (completion_tracker::advance_custom_word_point_by): New. (completion_tracker::build_completion_result): Don't rely on readline appending the quote char. (gdb_rl_attempted_completion_function_throw): Handle trackers that use a custom word point. (gdb_rl_attempted_completion_function): Restore rl_basic_quote_characters. * completer.h (class completion_tracker): Extend intro comment. (completion_tracker::set_quote_char) (completion_tracker::quote_char) (completion_tracker::set_use_custom_word_point) (completion_tracker::use_custom_word_point) (completion_tracker::custom_word_point) (completion_tracker::set_custom_word_point) (completion_tracker::advance_custom_word_point_by) (completion_tracker::completes_to_completion_word) (completion_tracker::discard_completions): New methods. (completion_tracker::m_quote_char) (completion_tracker::m_use_custom_word_point) (completion_tracker::m_custom_word_point): New fields. (advance_to_expression_complete_word_point): Declare. * f-lang.c (f_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * language.h (struct language_defn) <la_collect_symbol_completion_matches>: Add complete_symbol_mode parameter. * linespec.c (linespec_keywords): Add NULL terminator. Make extern. (linespec_complete_function): New function. (linespec_lexer_lex_keyword): Adjust. * linespec.h (linespec_keywords, linespec_complete_function): New declarations. * location.c (find_end_quote): New function. (explicit_location_lex_one): Add explicit_completion_info parameter. Save quoting info. Don't throw if being called for completion. Don't handle Ada operators here. (is_cp_operator, skip_op_false_positives, first_of) (explicit_location_lex_one_function): New function. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. Handle it. Don't use explicit_location_lex_one to lex function names. Use explicit_location_lex_one_function instead. * location.h (struct explicit_completion_info): New. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. * symtab.c (default_collect_symbol_completion_matches_break_on): Add complete_symbol_mode parameter. Handle LINESPEC mode. (default_collect_symbol_completion_matches) (collect_symbol_completion_matches): Add complete_symbol_mode parameter. (collect_symbol_completion_matches_type): Pass down complete_symbol_mode::EXPRESSION. (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. Handle LINESPEC mode. * symtab.h (complete_symbol_mode): New. (default_collect_symbol_completion_matches_break_on) (default_collect_symbol_completion_matches) (collect_symbol_completion_matches) (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. gdb/testsuite/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * gdb.linespec/ls-errs.exp (do_test): Adjust expected output.
2017-07-17 21:21:33 +02:00
/* Return true if COMMA points past "operator". START is the start of
the line that COMMAND points to, hence when reading backwards, we
must not read any character before START. */
static bool
is_cp_operator (const char *start, const char *comma)
{
if (comma != NULL
&& (comma - start) >= CP_OPERATOR_LEN)
{
const char *p = comma;
while (p > start && isspace (p[-1]))
p--;
if (p - start >= CP_OPERATOR_LEN)
{
p -= CP_OPERATOR_LEN;
if (strncmp (p, CP_OPERATOR_STR, CP_OPERATOR_LEN) == 0
&& (p == start
|| !(isalnum (p[-1]) || p[-1] == '_')))
{
return true;
}
}
}
return false;
}
/* When scanning the input string looking for the next explicit
location option/delimiter, we jump to the next option by looking
for ",", and "-". Such a character can also appear in C++ symbols
like "operator," and "operator-". So when we find such a
character, we call this function to check if we found such a
symbol, meaning we had a false positive for an option string. In
that case, we keep looking for the next delimiter, until we find
one that is not a false positive, or we reach end of string. FOUND
is the character that scanning found (either '-' or ','), and START
is the start of the line that FOUND points to, hence when reading
backwards, we must not read any character before START. Returns a
pointer to the next non-false-positive delimiter character, or NULL
if none was found. */
static const char *
skip_op_false_positives (const char *start, const char *found)
{
while (found != NULL && is_cp_operator (start, found))
{
if (found[0] == '-' && found[1] == '-')
start = found + 2;
else
start = found + 1;
found = find_toplevel_char (start, *found);
}
return found;
}
/* Assuming both FIRST and NEW_TOK point into the same string, return
the pointer that is closer to the start of the string. If FIRST is
NULL, returns NEW_TOK. If NEW_TOK is NULL, returns FIRST. */
static const char *
first_of (const char *first, const char *new_tok)
{
if (first == NULL)
return new_tok;
else if (new_tok != NULL && new_tok < first)
return new_tok;
else
return first;
}
/* A lexer for functions in explicit locations. This function will
advance INP past a function until the next option, or until end of
string. Returns a malloc'd copy of the lexed string or NULL if no
lexing was done. */
static gdb::unique_xmalloc_ptr<char>
explicit_location_lex_one_function (const char **inp,
const struct language_defn *language,
explicit_completion_info *completion_info)
{
const char *start = *inp;
if (*start == '\0')
return NULL;
/* If quoted, skip to the ending quote. */
if (strchr (get_gdb_linespec_parser_quote_characters (), *start))
{
char quote_char = *start;
/* If the input is not an Ada operator, skip to the matching
closing quote and return the string. */
if (!(language->la_language == language_ada
&& quote_char == '\"' && is_ada_operator (start)))
{
if (completion_info != NULL)
completion_info->quoted_arg_start = start;
const char *end = find_toplevel_char (start + 1, quote_char);
if (end == NULL)
{
if (completion_info == NULL)
error (_("Unmatched quote, %s."), start);
end = start + strlen (start);
*inp = end;
char *saved = savestring (start + 1, *inp - start - 1);
return gdb::unique_xmalloc_ptr<char> (saved);
}
if (completion_info != NULL)
completion_info->quoted_arg_end = end;
*inp = end + 1;
char *saved = savestring (start + 1, *inp - start - 2);
return gdb::unique_xmalloc_ptr<char> (saved);
}
}
const char *comma = find_toplevel_char (start, ',');
/* If we have "-function -myfunction", or perhaps better example,
"-function -[BasicClass doIt]" (objc selector), treat
"-myfunction" as the function name. I.e., skip the first char if
it is an hyphen. Don't skip the first char always, because we
may have C++ "operator<", and find_toplevel_char needs to see the
'o' in that case. */
const char *hyphen
= (*start == '-'
? find_toplevel_char (start + 1, '-')
: find_toplevel_char (start, '-'));
/* Check for C++ "operator," and "operator-". */
comma = skip_op_false_positives (start, comma);
hyphen = skip_op_false_positives (start, hyphen);
/* Pick the one that appears first. */
const char *end = first_of (hyphen, comma);
/* See if a linespec keyword appears first. */
const char *s = start;
const char *ws = find_toplevel_char (start, ' ');
while (ws != NULL && linespec_lexer_lex_keyword (ws + 1) == NULL)
{
s = ws + 1;
ws = find_toplevel_char (s, ' ');
}
if (ws != NULL)
end = first_of (end, ws + 1);
/* If we don't have any terminator, then take the whole string. */
if (end == NULL)
end = start + strlen (start);
/* Trim whitespace at the end. */
while (end > start && end[-1] == ' ')
end--;
*inp = end;
if (*inp - start > 0)
return gdb::unique_xmalloc_ptr<char> (savestring (start, *inp - start));
return NULL;
}
Explicit locations: add UI features for CLI This patch exposes explicit locations to the CLI user. This enables users to "explicitly" specify attributes of the breakpoint location to avoid any ambiguity that might otherwise exist with linespecs. The general syntax of explicit locations is: -source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME -label LABEL_NAME Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users may use the completer with either options or values. gdb/ChangeLog: * completer.c: Include location.h. (enum match_type): New enum. (location_completer): Rename to ... (linespec_completer): ... this. (collect_explicit_location_matches, backup_text_ptr) (explicit_location_completer): New functions. (location_completer): "New" function; handle linespec and explicit location completions. (complete_line_internal): Remove all location completer-specific handling. * linespec.c (linespec_lexer_lex_keyword, is_ada_operator) (find_toplevel_char): Export. (linespec_parse_line_offset): Export. Issue error if STRING is not numerical. (gdb_get_linespec_parser_quote_characters): New function. * linespec.h (linespec_parse_line_offset): Declare. (get_gdb_linespec_parser_quote_characters): Declare. (is_ada_operator): Declare. (find_toplevel_char): Declare. (linespec_lexer_lex_keyword): Declare. * location.c (explicit_to_event_location): New function. (explicit_location_lex_one): New function. (string_to_explicit_location): New function. (string_to_event_location): Handle explicit locations. * location.h (explicit_to_event_location): Declare. (string_to_explicit_location): Declare. gdb/testsuite/ChangeLog: * gdb.linespec/3explicit.c: New file. * gdb.linespec/cpexplicit.cc: New file. * gdb.linespec/cpexplicit.exp: New file. * gdb.linespec/explicit.c: New file. * gdb.linespec/explicit.exp: New file. * gdb.linespec/explicit2.c: New file. * gdb.linespec/ls-errs.exp: Add explicit location tests. * lib/gdb.exp (capture_command_output): Regexp-escape `command' before using in the matching pattern. Clarify that `prefix' is a regular expression.
2015-08-12 02:09:36 +02:00
/* See description in location.h. */
Introduce event_location_up This removes make_cleanup_delete_event_location and instead changes the various location functions to return an event_location_up, a new unique_ptr typedef. This is largely straightforward, but be sure to examine the init_breakpoint_sal change. I believe the code I deleted there is dead, because "location != NULL" can never be true in that branch; but you should double-check. gdb/ChangeLog 2017-04-12 Tom Tromey <tom@tromey.com> * tracepoint.c (scope_info): Update. * spu-tdep.c (spu_catch_start): Update. * python/python.c (gdbpy_decode_line): Update. * python/py-finishbreakpoint.c (bpfinishpy_init): Update. * python/py-breakpoint.c (bppy_init): Update. * probe.c (parse_probes): Update. * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Update. * location.h (event_location_deleter): New struct. (event_location_up): New typedef. (new_linespec_location, new_address_location, new_probe_location) (new_explicit_location, copy_event_location) (string_to_event_location, string_to_event_location_basic) (string_to_explicit_location): Update return type. (make_cleanup_delete_event_location): Remove. * location.c (new_linespec_location, new_address_location) (new_probe_location, new_explicit_location, copy_event_location): Return event_location_up. (delete_event_location_cleanup) (make_cleanup_delete_event_location): Remove. (string_to_explicit_location, string_to_event_location_basic) (string_to_event_location): Return event_location_up. * linespec.c (canonicalize_linespec, event_location_to_sals) (decode_line_with_current_source) (decode_line_with_last_displayed, decode_objc): Update. * guile/scm-breakpoint.c (gdbscm_register_breakpoint_x): Update. * completer.c (location_completer): Update. * cli/cli-cmds.c (edit_command, list_command): Update. * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint) (create_thread_event_breakpoint): Update. (init_breakpoint_sal): Update. Remove some dead code. (create_breakpoint_sal): Change type of "location". Update. (create_breakpoints_sal, create_breakpoint, break_command_1) (dprintf_command, break_range_command, until_break_command) (init_ada_exception_breakpoint) (strace_marker_create_sals_from_location) (update_static_tracepoint, trace_command, ftrace_command) (strace_command, create_tracepoint_from_upload): Update. * break-catch-throw.c (re_set_exception_catchpoint): Update. * ax-gdb.c (agent_command_1): Update.
2017-04-06 04:44:01 +02:00
event_location_up
Explicit locations: add UI features for CLI This patch exposes explicit locations to the CLI user. This enables users to "explicitly" specify attributes of the breakpoint location to avoid any ambiguity that might otherwise exist with linespecs. The general syntax of explicit locations is: -source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME -label LABEL_NAME Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users may use the completer with either options or values. gdb/ChangeLog: * completer.c: Include location.h. (enum match_type): New enum. (location_completer): Rename to ... (linespec_completer): ... this. (collect_explicit_location_matches, backup_text_ptr) (explicit_location_completer): New functions. (location_completer): "New" function; handle linespec and explicit location completions. (complete_line_internal): Remove all location completer-specific handling. * linespec.c (linespec_lexer_lex_keyword, is_ada_operator) (find_toplevel_char): Export. (linespec_parse_line_offset): Export. Issue error if STRING is not numerical. (gdb_get_linespec_parser_quote_characters): New function. * linespec.h (linespec_parse_line_offset): Declare. (get_gdb_linespec_parser_quote_characters): Declare. (is_ada_operator): Declare. (find_toplevel_char): Declare. (linespec_lexer_lex_keyword): Declare. * location.c (explicit_to_event_location): New function. (explicit_location_lex_one): New function. (string_to_explicit_location): New function. (string_to_event_location): Handle explicit locations. * location.h (explicit_to_event_location): Declare. (string_to_explicit_location): Declare. gdb/testsuite/ChangeLog: * gdb.linespec/3explicit.c: New file. * gdb.linespec/cpexplicit.cc: New file. * gdb.linespec/cpexplicit.exp: New file. * gdb.linespec/explicit.c: New file. * gdb.linespec/explicit.exp: New file. * gdb.linespec/explicit2.c: New file. * gdb.linespec/ls-errs.exp: Add explicit location tests. * lib/gdb.exp (capture_command_output): Regexp-escape `command' before using in the matching pattern. Clarify that `prefix' is a regular expression.
2015-08-12 02:09:36 +02:00
string_to_explicit_location (const char **argp,
const struct language_defn *language,
Rewrite/enhance explicit locations completer, parse left->right One of the most annoying (to me) things about GDB's completion is when you have overloads in your program, and you want to set a breakpoint in one of them: void function(int); // set breakpoint here. void function(long); (gdb) b -f func[TAB] (gdb) b -f function( # ok, gdb completed as much as possible. (gdb) b -f function([TAB] # show me the overloads, please. <_all_ symbols in the program are shown...> E.g., when debugging GDB, that'd be: (gdb) b -f function([TAB] (anonymous namespace)::get_global()::global pt_insn_get_offset@plt scm_new_port_table_entry asprintf pt_pkt_alloc_decoder scm_new_port_table_entry@plt asprintf@plt pt_pkt_alloc_decoder@plt scm_out_of_range bt_ctf_get_char_array pt_pkt_sync_forward scm_out_of_range@plt bt_ctf_get_char_array@plt pt_pkt_sync_forward@plt scm_putc bt_ctf_get_uint64 pwrite scm_putc@plt bt_ctf_get_uint64@plt pwrite@plt scm_reverse_x bt_ctf_iter_read_event PyErr_Restore scm_reverse_x@plt bt_ctf_iter_read_event@plt PyErr_Restore@plt scm_set_port_filename_x <snip...> Now that's a load of completely useless completions. The reason GDB offers those is that the completer relies on readline figuring out the completion word point in the input line based on the language's word break characters, which include "(". So readline tells the completer to complete on "", the string that is after '('. Likewise, if you type "function(i[TAB]" to try to complete to "int", you're out of luck. GDB shows you all the symbols in the program that start with "i"... This makes sense for the expression completer, as what you'd want to type is e.g., a global variable, say: (gdb) print function(i[TAB] but, it makes no sense when specifying a function name for a breakpoint location. To get around that limitation, users need to quote the function name, like: (gdb) b -f 'function([TAB] function(int) function(long) (gdb) b 'function(i[TAB] (gdb) b 'function(int)' # now completes correctly! Note that the quoting is only necessary for completion. Creating the breakpoint does not require the quoting: (gdb) b -f function(int) [RET] Breakpoint 1 at .... This patch removes this limitation. ( Actually, it's a necessary patch, though not sufficient. That'll start working correctly by the end of the series. With this patch, if try it, you'll see: (gdb) b -f function(i[TAB] (gdb) b -f function i.e., gdb strips everything after the "(". That's caused by some code in symtab.c that'll be eliminated further down the series. These patches are all unfortunately interrelated, which is also the reason new tests only appear much later in the series. But let's ignore that reality for the remainder of the description. ) So... this patch gets rid of the need for quoting. It does that by adding a way for a completer to control the exact completion word point that readline should start the completion request for, instead of letting readline try to figure it out using the current language's word break chars array, and often failing. In the case above, we want the completer to figure out that it's completing a function name that starts with "function(i". It now does. It took me a while to figure out a way to ask readline to "use this exact word point", and for a while I feared that it'd be impossible with current readline (and having to rely on master readline for core functionality is something I'd like to avoid very much). Eventually, after several different attempts, I came up with what is described in the comment above gdb_custom_word_point_brkchars in the patch. With this patch, the handle_brkchars phase of the explicit location completer advances the expected word point as it parses the input line left to right, until it figures out exactly what we're completing, instead of expecting readline to break the string using the word break characters, and then having the completer heuristically fix up a bad decision by parsing the input string backwards. This allows correctly knowning that we're completing a symbol name after -function, complete functions without quoting, etc. Later, we'll make use of this same mechanims to implement a proper linespec completer that avoids need for quoting too. gdb/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * ada-lang.c (ada_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * cli/cli-cmds.c (complete_command): Get the completion result out of the handle_brkchars tracker if used a custom word point. * completer.c: Include "linespec.h". (enum explicit_location_match_type) <MATCH_LINE>: New enumerator. (advance_to_expression_complete_word_point): New. (completion_tracker::completes_to_completion_word): New. (complete_files_symbols): Pass down complete_symbol_mode::EXPRESSION. (explicit_options, probe_options): New. (collect_explicit_location_matches): Complete on the explictit_loc->foo instead of word. Use linespec_complete_function. Handle MATCH_LINE. Handle offering keyword and options completions. (backup_text_ptr): Delete. (skip_keyword): New. (complete_explicit_location): Remove 'word' parameter. Add language, quoted_arg_start and quoted_arg_end parameters. Rewrite, parsing left to right. (location_completer): Rewrite. (location_completer_handle_brkchars): New function. (symbol_completer): Pass down complete_symbol_mode::EXPRESSION. (enum complete_line_internal_reason): Adjust comments. (completion_tracker::discard_completions): New. (completer_handle_brkchars_func_for_completer): Handle location_completer. (gdb_custom_word_point_brkchars) (gdb_org_rl_basic_quote_characters): New. (gdb_completion_word_break_characters_throw) (completion_find_completion_word): Handle trackers that use a custom word point. (completion_tracker::advance_custom_word_point_by): New. (completion_tracker::build_completion_result): Don't rely on readline appending the quote char. (gdb_rl_attempted_completion_function_throw): Handle trackers that use a custom word point. (gdb_rl_attempted_completion_function): Restore rl_basic_quote_characters. * completer.h (class completion_tracker): Extend intro comment. (completion_tracker::set_quote_char) (completion_tracker::quote_char) (completion_tracker::set_use_custom_word_point) (completion_tracker::use_custom_word_point) (completion_tracker::custom_word_point) (completion_tracker::set_custom_word_point) (completion_tracker::advance_custom_word_point_by) (completion_tracker::completes_to_completion_word) (completion_tracker::discard_completions): New methods. (completion_tracker::m_quote_char) (completion_tracker::m_use_custom_word_point) (completion_tracker::m_custom_word_point): New fields. (advance_to_expression_complete_word_point): Declare. * f-lang.c (f_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * language.h (struct language_defn) <la_collect_symbol_completion_matches>: Add complete_symbol_mode parameter. * linespec.c (linespec_keywords): Add NULL terminator. Make extern. (linespec_complete_function): New function. (linespec_lexer_lex_keyword): Adjust. * linespec.h (linespec_keywords, linespec_complete_function): New declarations. * location.c (find_end_quote): New function. (explicit_location_lex_one): Add explicit_completion_info parameter. Save quoting info. Don't throw if being called for completion. Don't handle Ada operators here. (is_cp_operator, skip_op_false_positives, first_of) (explicit_location_lex_one_function): New function. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. Handle it. Don't use explicit_location_lex_one to lex function names. Use explicit_location_lex_one_function instead. * location.h (struct explicit_completion_info): New. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. * symtab.c (default_collect_symbol_completion_matches_break_on): Add complete_symbol_mode parameter. Handle LINESPEC mode. (default_collect_symbol_completion_matches) (collect_symbol_completion_matches): Add complete_symbol_mode parameter. (collect_symbol_completion_matches_type): Pass down complete_symbol_mode::EXPRESSION. (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. Handle LINESPEC mode. * symtab.h (complete_symbol_mode): New. (default_collect_symbol_completion_matches_break_on) (default_collect_symbol_completion_matches) (collect_symbol_completion_matches) (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. gdb/testsuite/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * gdb.linespec/ls-errs.exp (do_test): Adjust expected output.
2017-07-17 21:21:33 +02:00
explicit_completion_info *completion_info)
Explicit locations: add UI features for CLI This patch exposes explicit locations to the CLI user. This enables users to "explicitly" specify attributes of the breakpoint location to avoid any ambiguity that might otherwise exist with linespecs. The general syntax of explicit locations is: -source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME -label LABEL_NAME Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users may use the completer with either options or values. gdb/ChangeLog: * completer.c: Include location.h. (enum match_type): New enum. (location_completer): Rename to ... (linespec_completer): ... this. (collect_explicit_location_matches, backup_text_ptr) (explicit_location_completer): New functions. (location_completer): "New" function; handle linespec and explicit location completions. (complete_line_internal): Remove all location completer-specific handling. * linespec.c (linespec_lexer_lex_keyword, is_ada_operator) (find_toplevel_char): Export. (linespec_parse_line_offset): Export. Issue error if STRING is not numerical. (gdb_get_linespec_parser_quote_characters): New function. * linespec.h (linespec_parse_line_offset): Declare. (get_gdb_linespec_parser_quote_characters): Declare. (is_ada_operator): Declare. (find_toplevel_char): Declare. (linespec_lexer_lex_keyword): Declare. * location.c (explicit_to_event_location): New function. (explicit_location_lex_one): New function. (string_to_explicit_location): New function. (string_to_event_location): Handle explicit locations. * location.h (explicit_to_event_location): Declare. (string_to_explicit_location): Declare. gdb/testsuite/ChangeLog: * gdb.linespec/3explicit.c: New file. * gdb.linespec/cpexplicit.cc: New file. * gdb.linespec/cpexplicit.exp: New file. * gdb.linespec/explicit.c: New file. * gdb.linespec/explicit.exp: New file. * gdb.linespec/explicit2.c: New file. * gdb.linespec/ls-errs.exp: Add explicit location tests. * lib/gdb.exp (capture_command_output): Regexp-escape `command' before using in the matching pattern. Clarify that `prefix' is a regular expression.
2015-08-12 02:09:36 +02:00
{
Introduce event_location_up This removes make_cleanup_delete_event_location and instead changes the various location functions to return an event_location_up, a new unique_ptr typedef. This is largely straightforward, but be sure to examine the init_breakpoint_sal change. I believe the code I deleted there is dead, because "location != NULL" can never be true in that branch; but you should double-check. gdb/ChangeLog 2017-04-12 Tom Tromey <tom@tromey.com> * tracepoint.c (scope_info): Update. * spu-tdep.c (spu_catch_start): Update. * python/python.c (gdbpy_decode_line): Update. * python/py-finishbreakpoint.c (bpfinishpy_init): Update. * python/py-breakpoint.c (bppy_init): Update. * probe.c (parse_probes): Update. * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Update. * location.h (event_location_deleter): New struct. (event_location_up): New typedef. (new_linespec_location, new_address_location, new_probe_location) (new_explicit_location, copy_event_location) (string_to_event_location, string_to_event_location_basic) (string_to_explicit_location): Update return type. (make_cleanup_delete_event_location): Remove. * location.c (new_linespec_location, new_address_location) (new_probe_location, new_explicit_location, copy_event_location): Return event_location_up. (delete_event_location_cleanup) (make_cleanup_delete_event_location): Remove. (string_to_explicit_location, string_to_event_location_basic) (string_to_event_location): Return event_location_up. * linespec.c (canonicalize_linespec, event_location_to_sals) (decode_line_with_current_source) (decode_line_with_last_displayed, decode_objc): Update. * guile/scm-breakpoint.c (gdbscm_register_breakpoint_x): Update. * completer.c (location_completer): Update. * cli/cli-cmds.c (edit_command, list_command): Update. * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint) (create_thread_event_breakpoint): Update. (init_breakpoint_sal): Update. Remove some dead code. (create_breakpoint_sal): Change type of "location". Update. (create_breakpoints_sal, create_breakpoint, break_command_1) (dprintf_command, break_range_command, until_break_command) (init_ada_exception_breakpoint) (strace_marker_create_sals_from_location) (update_static_tracepoint, trace_command, ftrace_command) (strace_command, create_tracepoint_from_upload): Update. * break-catch-throw.c (re_set_exception_catchpoint): Update. * ax-gdb.c (agent_command_1): Update.
2017-04-06 04:44:01 +02:00
event_location_up location;
Explicit locations: add UI features for CLI This patch exposes explicit locations to the CLI user. This enables users to "explicitly" specify attributes of the breakpoint location to avoid any ambiguity that might otherwise exist with linespecs. The general syntax of explicit locations is: -source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME -label LABEL_NAME Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users may use the completer with either options or values. gdb/ChangeLog: * completer.c: Include location.h. (enum match_type): New enum. (location_completer): Rename to ... (linespec_completer): ... this. (collect_explicit_location_matches, backup_text_ptr) (explicit_location_completer): New functions. (location_completer): "New" function; handle linespec and explicit location completions. (complete_line_internal): Remove all location completer-specific handling. * linespec.c (linespec_lexer_lex_keyword, is_ada_operator) (find_toplevel_char): Export. (linespec_parse_line_offset): Export. Issue error if STRING is not numerical. (gdb_get_linespec_parser_quote_characters): New function. * linespec.h (linespec_parse_line_offset): Declare. (get_gdb_linespec_parser_quote_characters): Declare. (is_ada_operator): Declare. (find_toplevel_char): Declare. (linespec_lexer_lex_keyword): Declare. * location.c (explicit_to_event_location): New function. (explicit_location_lex_one): New function. (string_to_explicit_location): New function. (string_to_event_location): Handle explicit locations. * location.h (explicit_to_event_location): Declare. (string_to_explicit_location): Declare. gdb/testsuite/ChangeLog: * gdb.linespec/3explicit.c: New file. * gdb.linespec/cpexplicit.cc: New file. * gdb.linespec/cpexplicit.exp: New file. * gdb.linespec/explicit.c: New file. * gdb.linespec/explicit.exp: New file. * gdb.linespec/explicit2.c: New file. * gdb.linespec/ls-errs.exp: Add explicit location tests. * lib/gdb.exp (capture_command_output): Regexp-escape `command' before using in the matching pattern. Clarify that `prefix' is a regular expression.
2015-08-12 02:09:36 +02:00
/* It is assumed that input beginning with '-' and a non-digit
character is an explicit location. "-p" is reserved, though,
for probe locations. */
Explicit locations: add UI features for CLI This patch exposes explicit locations to the CLI user. This enables users to "explicitly" specify attributes of the breakpoint location to avoid any ambiguity that might otherwise exist with linespecs. The general syntax of explicit locations is: -source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME -label LABEL_NAME Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users may use the completer with either options or values. gdb/ChangeLog: * completer.c: Include location.h. (enum match_type): New enum. (location_completer): Rename to ... (linespec_completer): ... this. (collect_explicit_location_matches, backup_text_ptr) (explicit_location_completer): New functions. (location_completer): "New" function; handle linespec and explicit location completions. (complete_line_internal): Remove all location completer-specific handling. * linespec.c (linespec_lexer_lex_keyword, is_ada_operator) (find_toplevel_char): Export. (linespec_parse_line_offset): Export. Issue error if STRING is not numerical. (gdb_get_linespec_parser_quote_characters): New function. * linespec.h (linespec_parse_line_offset): Declare. (get_gdb_linespec_parser_quote_characters): Declare. (is_ada_operator): Declare. (find_toplevel_char): Declare. (linespec_lexer_lex_keyword): Declare. * location.c (explicit_to_event_location): New function. (explicit_location_lex_one): New function. (string_to_explicit_location): New function. (string_to_event_location): Handle explicit locations. * location.h (explicit_to_event_location): Declare. (string_to_explicit_location): Declare. gdb/testsuite/ChangeLog: * gdb.linespec/3explicit.c: New file. * gdb.linespec/cpexplicit.cc: New file. * gdb.linespec/cpexplicit.exp: New file. * gdb.linespec/explicit.c: New file. * gdb.linespec/explicit.exp: New file. * gdb.linespec/explicit2.c: New file. * gdb.linespec/ls-errs.exp: Add explicit location tests. * lib/gdb.exp (capture_command_output): Regexp-escape `command' before using in the matching pattern. Clarify that `prefix' is a regular expression.
2015-08-12 02:09:36 +02:00
if (argp == NULL
|| *argp == NULL
Explicit locations: add UI features for CLI This patch exposes explicit locations to the CLI user. This enables users to "explicitly" specify attributes of the breakpoint location to avoid any ambiguity that might otherwise exist with linespecs. The general syntax of explicit locations is: -source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME -label LABEL_NAME Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users may use the completer with either options or values. gdb/ChangeLog: * completer.c: Include location.h. (enum match_type): New enum. (location_completer): Rename to ... (linespec_completer): ... this. (collect_explicit_location_matches, backup_text_ptr) (explicit_location_completer): New functions. (location_completer): "New" function; handle linespec and explicit location completions. (complete_line_internal): Remove all location completer-specific handling. * linespec.c (linespec_lexer_lex_keyword, is_ada_operator) (find_toplevel_char): Export. (linespec_parse_line_offset): Export. Issue error if STRING is not numerical. (gdb_get_linespec_parser_quote_characters): New function. * linespec.h (linespec_parse_line_offset): Declare. (get_gdb_linespec_parser_quote_characters): Declare. (is_ada_operator): Declare. (find_toplevel_char): Declare. (linespec_lexer_lex_keyword): Declare. * location.c (explicit_to_event_location): New function. (explicit_location_lex_one): New function. (string_to_explicit_location): New function. (string_to_event_location): Handle explicit locations. * location.h (explicit_to_event_location): Declare. (string_to_explicit_location): Declare. gdb/testsuite/ChangeLog: * gdb.linespec/3explicit.c: New file. * gdb.linespec/cpexplicit.cc: New file. * gdb.linespec/cpexplicit.exp: New file. * gdb.linespec/explicit.c: New file. * gdb.linespec/explicit.exp: New file. * gdb.linespec/explicit2.c: New file. * gdb.linespec/ls-errs.exp: Add explicit location tests. * lib/gdb.exp (capture_command_output): Regexp-escape `command' before using in the matching pattern. Clarify that `prefix' is a regular expression.
2015-08-12 02:09:36 +02:00
|| *argp[0] != '-'
|| !isalpha ((*argp)[1])
|| ((*argp)[0] == '-' && (*argp)[1] == 'p'))
Explicit locations: add UI features for CLI This patch exposes explicit locations to the CLI user. This enables users to "explicitly" specify attributes of the breakpoint location to avoid any ambiguity that might otherwise exist with linespecs. The general syntax of explicit locations is: -source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME -label LABEL_NAME Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users may use the completer with either options or values. gdb/ChangeLog: * completer.c: Include location.h. (enum match_type): New enum. (location_completer): Rename to ... (linespec_completer): ... this. (collect_explicit_location_matches, backup_text_ptr) (explicit_location_completer): New functions. (location_completer): "New" function; handle linespec and explicit location completions. (complete_line_internal): Remove all location completer-specific handling. * linespec.c (linespec_lexer_lex_keyword, is_ada_operator) (find_toplevel_char): Export. (linespec_parse_line_offset): Export. Issue error if STRING is not numerical. (gdb_get_linespec_parser_quote_characters): New function. * linespec.h (linespec_parse_line_offset): Declare. (get_gdb_linespec_parser_quote_characters): Declare. (is_ada_operator): Declare. (find_toplevel_char): Declare. (linespec_lexer_lex_keyword): Declare. * location.c (explicit_to_event_location): New function. (explicit_location_lex_one): New function. (string_to_explicit_location): New function. (string_to_event_location): Handle explicit locations. * location.h (explicit_to_event_location): Declare. (string_to_explicit_location): Declare. gdb/testsuite/ChangeLog: * gdb.linespec/3explicit.c: New file. * gdb.linespec/cpexplicit.cc: New file. * gdb.linespec/cpexplicit.exp: New file. * gdb.linespec/explicit.c: New file. * gdb.linespec/explicit.exp: New file. * gdb.linespec/explicit2.c: New file. * gdb.linespec/ls-errs.exp: Add explicit location tests. * lib/gdb.exp (capture_command_output): Regexp-escape `command' before using in the matching pattern. Clarify that `prefix' is a regular expression.
2015-08-12 02:09:36 +02:00
return NULL;
location = new_explicit_location (NULL);
/* Process option/argument pairs. dprintf_command
requires that processing stop on ','. */
while ((*argp)[0] != '\0' && (*argp)[0] != ',')
{
int len;
const char *start;
Rewrite/enhance explicit locations completer, parse left->right One of the most annoying (to me) things about GDB's completion is when you have overloads in your program, and you want to set a breakpoint in one of them: void function(int); // set breakpoint here. void function(long); (gdb) b -f func[TAB] (gdb) b -f function( # ok, gdb completed as much as possible. (gdb) b -f function([TAB] # show me the overloads, please. <_all_ symbols in the program are shown...> E.g., when debugging GDB, that'd be: (gdb) b -f function([TAB] (anonymous namespace)::get_global()::global pt_insn_get_offset@plt scm_new_port_table_entry asprintf pt_pkt_alloc_decoder scm_new_port_table_entry@plt asprintf@plt pt_pkt_alloc_decoder@plt scm_out_of_range bt_ctf_get_char_array pt_pkt_sync_forward scm_out_of_range@plt bt_ctf_get_char_array@plt pt_pkt_sync_forward@plt scm_putc bt_ctf_get_uint64 pwrite scm_putc@plt bt_ctf_get_uint64@plt pwrite@plt scm_reverse_x bt_ctf_iter_read_event PyErr_Restore scm_reverse_x@plt bt_ctf_iter_read_event@plt PyErr_Restore@plt scm_set_port_filename_x <snip...> Now that's a load of completely useless completions. The reason GDB offers those is that the completer relies on readline figuring out the completion word point in the input line based on the language's word break characters, which include "(". So readline tells the completer to complete on "", the string that is after '('. Likewise, if you type "function(i[TAB]" to try to complete to "int", you're out of luck. GDB shows you all the symbols in the program that start with "i"... This makes sense for the expression completer, as what you'd want to type is e.g., a global variable, say: (gdb) print function(i[TAB] but, it makes no sense when specifying a function name for a breakpoint location. To get around that limitation, users need to quote the function name, like: (gdb) b -f 'function([TAB] function(int) function(long) (gdb) b 'function(i[TAB] (gdb) b 'function(int)' # now completes correctly! Note that the quoting is only necessary for completion. Creating the breakpoint does not require the quoting: (gdb) b -f function(int) [RET] Breakpoint 1 at .... This patch removes this limitation. ( Actually, it's a necessary patch, though not sufficient. That'll start working correctly by the end of the series. With this patch, if try it, you'll see: (gdb) b -f function(i[TAB] (gdb) b -f function i.e., gdb strips everything after the "(". That's caused by some code in symtab.c that'll be eliminated further down the series. These patches are all unfortunately interrelated, which is also the reason new tests only appear much later in the series. But let's ignore that reality for the remainder of the description. ) So... this patch gets rid of the need for quoting. It does that by adding a way for a completer to control the exact completion word point that readline should start the completion request for, instead of letting readline try to figure it out using the current language's word break chars array, and often failing. In the case above, we want the completer to figure out that it's completing a function name that starts with "function(i". It now does. It took me a while to figure out a way to ask readline to "use this exact word point", and for a while I feared that it'd be impossible with current readline (and having to rely on master readline for core functionality is something I'd like to avoid very much). Eventually, after several different attempts, I came up with what is described in the comment above gdb_custom_word_point_brkchars in the patch. With this patch, the handle_brkchars phase of the explicit location completer advances the expected word point as it parses the input line left to right, until it figures out exactly what we're completing, instead of expecting readline to break the string using the word break characters, and then having the completer heuristically fix up a bad decision by parsing the input string backwards. This allows correctly knowning that we're completing a symbol name after -function, complete functions without quoting, etc. Later, we'll make use of this same mechanims to implement a proper linespec completer that avoids need for quoting too. gdb/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * ada-lang.c (ada_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * cli/cli-cmds.c (complete_command): Get the completion result out of the handle_brkchars tracker if used a custom word point. * completer.c: Include "linespec.h". (enum explicit_location_match_type) <MATCH_LINE>: New enumerator. (advance_to_expression_complete_word_point): New. (completion_tracker::completes_to_completion_word): New. (complete_files_symbols): Pass down complete_symbol_mode::EXPRESSION. (explicit_options, probe_options): New. (collect_explicit_location_matches): Complete on the explictit_loc->foo instead of word. Use linespec_complete_function. Handle MATCH_LINE. Handle offering keyword and options completions. (backup_text_ptr): Delete. (skip_keyword): New. (complete_explicit_location): Remove 'word' parameter. Add language, quoted_arg_start and quoted_arg_end parameters. Rewrite, parsing left to right. (location_completer): Rewrite. (location_completer_handle_brkchars): New function. (symbol_completer): Pass down complete_symbol_mode::EXPRESSION. (enum complete_line_internal_reason): Adjust comments. (completion_tracker::discard_completions): New. (completer_handle_brkchars_func_for_completer): Handle location_completer. (gdb_custom_word_point_brkchars) (gdb_org_rl_basic_quote_characters): New. (gdb_completion_word_break_characters_throw) (completion_find_completion_word): Handle trackers that use a custom word point. (completion_tracker::advance_custom_word_point_by): New. (completion_tracker::build_completion_result): Don't rely on readline appending the quote char. (gdb_rl_attempted_completion_function_throw): Handle trackers that use a custom word point. (gdb_rl_attempted_completion_function): Restore rl_basic_quote_characters. * completer.h (class completion_tracker): Extend intro comment. (completion_tracker::set_quote_char) (completion_tracker::quote_char) (completion_tracker::set_use_custom_word_point) (completion_tracker::use_custom_word_point) (completion_tracker::custom_word_point) (completion_tracker::set_custom_word_point) (completion_tracker::advance_custom_word_point_by) (completion_tracker::completes_to_completion_word) (completion_tracker::discard_completions): New methods. (completion_tracker::m_quote_char) (completion_tracker::m_use_custom_word_point) (completion_tracker::m_custom_word_point): New fields. (advance_to_expression_complete_word_point): Declare. * f-lang.c (f_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * language.h (struct language_defn) <la_collect_symbol_completion_matches>: Add complete_symbol_mode parameter. * linespec.c (linespec_keywords): Add NULL terminator. Make extern. (linespec_complete_function): New function. (linespec_lexer_lex_keyword): Adjust. * linespec.h (linespec_keywords, linespec_complete_function): New declarations. * location.c (find_end_quote): New function. (explicit_location_lex_one): Add explicit_completion_info parameter. Save quoting info. Don't throw if being called for completion. Don't handle Ada operators here. (is_cp_operator, skip_op_false_positives, first_of) (explicit_location_lex_one_function): New function. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. Handle it. Don't use explicit_location_lex_one to lex function names. Use explicit_location_lex_one_function instead. * location.h (struct explicit_completion_info): New. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. * symtab.c (default_collect_symbol_completion_matches_break_on): Add complete_symbol_mode parameter. Handle LINESPEC mode. (default_collect_symbol_completion_matches) (collect_symbol_completion_matches): Add complete_symbol_mode parameter. (collect_symbol_completion_matches_type): Pass down complete_symbol_mode::EXPRESSION. (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. Handle LINESPEC mode. * symtab.h (complete_symbol_mode): New. (default_collect_symbol_completion_matches_break_on) (default_collect_symbol_completion_matches) (collect_symbol_completion_matches) (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. gdb/testsuite/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * gdb.linespec/ls-errs.exp (do_test): Adjust expected output.
2017-07-17 21:21:33 +02:00
/* Clear these on each iteration, since they should be filled
with info about the last option. */
if (completion_info != NULL)
{
completion_info->quoted_arg_start = NULL;
completion_info->quoted_arg_end = NULL;
}
Explicit locations: add UI features for CLI This patch exposes explicit locations to the CLI user. This enables users to "explicitly" specify attributes of the breakpoint location to avoid any ambiguity that might otherwise exist with linespecs. The general syntax of explicit locations is: -source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME -label LABEL_NAME Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users may use the completer with either options or values. gdb/ChangeLog: * completer.c: Include location.h. (enum match_type): New enum. (location_completer): Rename to ... (linespec_completer): ... this. (collect_explicit_location_matches, backup_text_ptr) (explicit_location_completer): New functions. (location_completer): "New" function; handle linespec and explicit location completions. (complete_line_internal): Remove all location completer-specific handling. * linespec.c (linespec_lexer_lex_keyword, is_ada_operator) (find_toplevel_char): Export. (linespec_parse_line_offset): Export. Issue error if STRING is not numerical. (gdb_get_linespec_parser_quote_characters): New function. * linespec.h (linespec_parse_line_offset): Declare. (get_gdb_linespec_parser_quote_characters): Declare. (is_ada_operator): Declare. (find_toplevel_char): Declare. (linespec_lexer_lex_keyword): Declare. * location.c (explicit_to_event_location): New function. (explicit_location_lex_one): New function. (string_to_explicit_location): New function. (string_to_event_location): Handle explicit locations. * location.h (explicit_to_event_location): Declare. (string_to_explicit_location): Declare. gdb/testsuite/ChangeLog: * gdb.linespec/3explicit.c: New file. * gdb.linespec/cpexplicit.cc: New file. * gdb.linespec/cpexplicit.exp: New file. * gdb.linespec/explicit.c: New file. * gdb.linespec/explicit.exp: New file. * gdb.linespec/explicit2.c: New file. * gdb.linespec/ls-errs.exp: Add explicit location tests. * lib/gdb.exp (capture_command_output): Regexp-escape `command' before using in the matching pattern. Clarify that `prefix' is a regular expression.
2015-08-12 02:09:36 +02:00
/* If *ARGP starts with a keyword, stop processing
options. */
if (linespec_lexer_lex_keyword (*argp) != NULL)
break;
/* Mark the start of the string in case we need to rewind. */
start = *argp;
Rewrite/enhance explicit locations completer, parse left->right One of the most annoying (to me) things about GDB's completion is when you have overloads in your program, and you want to set a breakpoint in one of them: void function(int); // set breakpoint here. void function(long); (gdb) b -f func[TAB] (gdb) b -f function( # ok, gdb completed as much as possible. (gdb) b -f function([TAB] # show me the overloads, please. <_all_ symbols in the program are shown...> E.g., when debugging GDB, that'd be: (gdb) b -f function([TAB] (anonymous namespace)::get_global()::global pt_insn_get_offset@plt scm_new_port_table_entry asprintf pt_pkt_alloc_decoder scm_new_port_table_entry@plt asprintf@plt pt_pkt_alloc_decoder@plt scm_out_of_range bt_ctf_get_char_array pt_pkt_sync_forward scm_out_of_range@plt bt_ctf_get_char_array@plt pt_pkt_sync_forward@plt scm_putc bt_ctf_get_uint64 pwrite scm_putc@plt bt_ctf_get_uint64@plt pwrite@plt scm_reverse_x bt_ctf_iter_read_event PyErr_Restore scm_reverse_x@plt bt_ctf_iter_read_event@plt PyErr_Restore@plt scm_set_port_filename_x <snip...> Now that's a load of completely useless completions. The reason GDB offers those is that the completer relies on readline figuring out the completion word point in the input line based on the language's word break characters, which include "(". So readline tells the completer to complete on "", the string that is after '('. Likewise, if you type "function(i[TAB]" to try to complete to "int", you're out of luck. GDB shows you all the symbols in the program that start with "i"... This makes sense for the expression completer, as what you'd want to type is e.g., a global variable, say: (gdb) print function(i[TAB] but, it makes no sense when specifying a function name for a breakpoint location. To get around that limitation, users need to quote the function name, like: (gdb) b -f 'function([TAB] function(int) function(long) (gdb) b 'function(i[TAB] (gdb) b 'function(int)' # now completes correctly! Note that the quoting is only necessary for completion. Creating the breakpoint does not require the quoting: (gdb) b -f function(int) [RET] Breakpoint 1 at .... This patch removes this limitation. ( Actually, it's a necessary patch, though not sufficient. That'll start working correctly by the end of the series. With this patch, if try it, you'll see: (gdb) b -f function(i[TAB] (gdb) b -f function i.e., gdb strips everything after the "(". That's caused by some code in symtab.c that'll be eliminated further down the series. These patches are all unfortunately interrelated, which is also the reason new tests only appear much later in the series. But let's ignore that reality for the remainder of the description. ) So... this patch gets rid of the need for quoting. It does that by adding a way for a completer to control the exact completion word point that readline should start the completion request for, instead of letting readline try to figure it out using the current language's word break chars array, and often failing. In the case above, we want the completer to figure out that it's completing a function name that starts with "function(i". It now does. It took me a while to figure out a way to ask readline to "use this exact word point", and for a while I feared that it'd be impossible with current readline (and having to rely on master readline for core functionality is something I'd like to avoid very much). Eventually, after several different attempts, I came up with what is described in the comment above gdb_custom_word_point_brkchars in the patch. With this patch, the handle_brkchars phase of the explicit location completer advances the expected word point as it parses the input line left to right, until it figures out exactly what we're completing, instead of expecting readline to break the string using the word break characters, and then having the completer heuristically fix up a bad decision by parsing the input string backwards. This allows correctly knowning that we're completing a symbol name after -function, complete functions without quoting, etc. Later, we'll make use of this same mechanims to implement a proper linespec completer that avoids need for quoting too. gdb/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * ada-lang.c (ada_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * cli/cli-cmds.c (complete_command): Get the completion result out of the handle_brkchars tracker if used a custom word point. * completer.c: Include "linespec.h". (enum explicit_location_match_type) <MATCH_LINE>: New enumerator. (advance_to_expression_complete_word_point): New. (completion_tracker::completes_to_completion_word): New. (complete_files_symbols): Pass down complete_symbol_mode::EXPRESSION. (explicit_options, probe_options): New. (collect_explicit_location_matches): Complete on the explictit_loc->foo instead of word. Use linespec_complete_function. Handle MATCH_LINE. Handle offering keyword and options completions. (backup_text_ptr): Delete. (skip_keyword): New. (complete_explicit_location): Remove 'word' parameter. Add language, quoted_arg_start and quoted_arg_end parameters. Rewrite, parsing left to right. (location_completer): Rewrite. (location_completer_handle_brkchars): New function. (symbol_completer): Pass down complete_symbol_mode::EXPRESSION. (enum complete_line_internal_reason): Adjust comments. (completion_tracker::discard_completions): New. (completer_handle_brkchars_func_for_completer): Handle location_completer. (gdb_custom_word_point_brkchars) (gdb_org_rl_basic_quote_characters): New. (gdb_completion_word_break_characters_throw) (completion_find_completion_word): Handle trackers that use a custom word point. (completion_tracker::advance_custom_word_point_by): New. (completion_tracker::build_completion_result): Don't rely on readline appending the quote char. (gdb_rl_attempted_completion_function_throw): Handle trackers that use a custom word point. (gdb_rl_attempted_completion_function): Restore rl_basic_quote_characters. * completer.h (class completion_tracker): Extend intro comment. (completion_tracker::set_quote_char) (completion_tracker::quote_char) (completion_tracker::set_use_custom_word_point) (completion_tracker::use_custom_word_point) (completion_tracker::custom_word_point) (completion_tracker::set_custom_word_point) (completion_tracker::advance_custom_word_point_by) (completion_tracker::completes_to_completion_word) (completion_tracker::discard_completions): New methods. (completion_tracker::m_quote_char) (completion_tracker::m_use_custom_word_point) (completion_tracker::m_custom_word_point): New fields. (advance_to_expression_complete_word_point): Declare. * f-lang.c (f_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * language.h (struct language_defn) <la_collect_symbol_completion_matches>: Add complete_symbol_mode parameter. * linespec.c (linespec_keywords): Add NULL terminator. Make extern. (linespec_complete_function): New function. (linespec_lexer_lex_keyword): Adjust. * linespec.h (linespec_keywords, linespec_complete_function): New declarations. * location.c (find_end_quote): New function. (explicit_location_lex_one): Add explicit_completion_info parameter. Save quoting info. Don't throw if being called for completion. Don't handle Ada operators here. (is_cp_operator, skip_op_false_positives, first_of) (explicit_location_lex_one_function): New function. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. Handle it. Don't use explicit_location_lex_one to lex function names. Use explicit_location_lex_one_function instead. * location.h (struct explicit_completion_info): New. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. * symtab.c (default_collect_symbol_completion_matches_break_on): Add complete_symbol_mode parameter. Handle LINESPEC mode. (default_collect_symbol_completion_matches) (collect_symbol_completion_matches): Add complete_symbol_mode parameter. (collect_symbol_completion_matches_type): Pass down complete_symbol_mode::EXPRESSION. (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. Handle LINESPEC mode. * symtab.h (complete_symbol_mode): New. (default_collect_symbol_completion_matches_break_on) (default_collect_symbol_completion_matches) (collect_symbol_completion_matches) (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. gdb/testsuite/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * gdb.linespec/ls-errs.exp (do_test): Adjust expected output.
2017-07-17 21:21:33 +02:00
if (completion_info != NULL)
completion_info->last_option = start;
Explicit locations: add UI features for CLI This patch exposes explicit locations to the CLI user. This enables users to "explicitly" specify attributes of the breakpoint location to avoid any ambiguity that might otherwise exist with linespecs. The general syntax of explicit locations is: -source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME -label LABEL_NAME Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users may use the completer with either options or values. gdb/ChangeLog: * completer.c: Include location.h. (enum match_type): New enum. (location_completer): Rename to ... (linespec_completer): ... this. (collect_explicit_location_matches, backup_text_ptr) (explicit_location_completer): New functions. (location_completer): "New" function; handle linespec and explicit location completions. (complete_line_internal): Remove all location completer-specific handling. * linespec.c (linespec_lexer_lex_keyword, is_ada_operator) (find_toplevel_char): Export. (linespec_parse_line_offset): Export. Issue error if STRING is not numerical. (gdb_get_linespec_parser_quote_characters): New function. * linespec.h (linespec_parse_line_offset): Declare. (get_gdb_linespec_parser_quote_characters): Declare. (is_ada_operator): Declare. (find_toplevel_char): Declare. (linespec_lexer_lex_keyword): Declare. * location.c (explicit_to_event_location): New function. (explicit_location_lex_one): New function. (string_to_explicit_location): New function. (string_to_event_location): Handle explicit locations. * location.h (explicit_to_event_location): Declare. (string_to_explicit_location): Declare. gdb/testsuite/ChangeLog: * gdb.linespec/3explicit.c: New file. * gdb.linespec/cpexplicit.cc: New file. * gdb.linespec/cpexplicit.exp: New file. * gdb.linespec/explicit.c: New file. * gdb.linespec/explicit.exp: New file. * gdb.linespec/explicit2.c: New file. * gdb.linespec/ls-errs.exp: Add explicit location tests. * lib/gdb.exp (capture_command_output): Regexp-escape `command' before using in the matching pattern. Clarify that `prefix' is a regular expression.
2015-08-12 02:09:36 +02:00
/* Get the option string. */
gdb::unique_xmalloc_ptr<char> opt
Rewrite/enhance explicit locations completer, parse left->right One of the most annoying (to me) things about GDB's completion is when you have overloads in your program, and you want to set a breakpoint in one of them: void function(int); // set breakpoint here. void function(long); (gdb) b -f func[TAB] (gdb) b -f function( # ok, gdb completed as much as possible. (gdb) b -f function([TAB] # show me the overloads, please. <_all_ symbols in the program are shown...> E.g., when debugging GDB, that'd be: (gdb) b -f function([TAB] (anonymous namespace)::get_global()::global pt_insn_get_offset@plt scm_new_port_table_entry asprintf pt_pkt_alloc_decoder scm_new_port_table_entry@plt asprintf@plt pt_pkt_alloc_decoder@plt scm_out_of_range bt_ctf_get_char_array pt_pkt_sync_forward scm_out_of_range@plt bt_ctf_get_char_array@plt pt_pkt_sync_forward@plt scm_putc bt_ctf_get_uint64 pwrite scm_putc@plt bt_ctf_get_uint64@plt pwrite@plt scm_reverse_x bt_ctf_iter_read_event PyErr_Restore scm_reverse_x@plt bt_ctf_iter_read_event@plt PyErr_Restore@plt scm_set_port_filename_x <snip...> Now that's a load of completely useless completions. The reason GDB offers those is that the completer relies on readline figuring out the completion word point in the input line based on the language's word break characters, which include "(". So readline tells the completer to complete on "", the string that is after '('. Likewise, if you type "function(i[TAB]" to try to complete to "int", you're out of luck. GDB shows you all the symbols in the program that start with "i"... This makes sense for the expression completer, as what you'd want to type is e.g., a global variable, say: (gdb) print function(i[TAB] but, it makes no sense when specifying a function name for a breakpoint location. To get around that limitation, users need to quote the function name, like: (gdb) b -f 'function([TAB] function(int) function(long) (gdb) b 'function(i[TAB] (gdb) b 'function(int)' # now completes correctly! Note that the quoting is only necessary for completion. Creating the breakpoint does not require the quoting: (gdb) b -f function(int) [RET] Breakpoint 1 at .... This patch removes this limitation. ( Actually, it's a necessary patch, though not sufficient. That'll start working correctly by the end of the series. With this patch, if try it, you'll see: (gdb) b -f function(i[TAB] (gdb) b -f function i.e., gdb strips everything after the "(". That's caused by some code in symtab.c that'll be eliminated further down the series. These patches are all unfortunately interrelated, which is also the reason new tests only appear much later in the series. But let's ignore that reality for the remainder of the description. ) So... this patch gets rid of the need for quoting. It does that by adding a way for a completer to control the exact completion word point that readline should start the completion request for, instead of letting readline try to figure it out using the current language's word break chars array, and often failing. In the case above, we want the completer to figure out that it's completing a function name that starts with "function(i". It now does. It took me a while to figure out a way to ask readline to "use this exact word point", and for a while I feared that it'd be impossible with current readline (and having to rely on master readline for core functionality is something I'd like to avoid very much). Eventually, after several different attempts, I came up with what is described in the comment above gdb_custom_word_point_brkchars in the patch. With this patch, the handle_brkchars phase of the explicit location completer advances the expected word point as it parses the input line left to right, until it figures out exactly what we're completing, instead of expecting readline to break the string using the word break characters, and then having the completer heuristically fix up a bad decision by parsing the input string backwards. This allows correctly knowning that we're completing a symbol name after -function, complete functions without quoting, etc. Later, we'll make use of this same mechanims to implement a proper linespec completer that avoids need for quoting too. gdb/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * ada-lang.c (ada_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * cli/cli-cmds.c (complete_command): Get the completion result out of the handle_brkchars tracker if used a custom word point. * completer.c: Include "linespec.h". (enum explicit_location_match_type) <MATCH_LINE>: New enumerator. (advance_to_expression_complete_word_point): New. (completion_tracker::completes_to_completion_word): New. (complete_files_symbols): Pass down complete_symbol_mode::EXPRESSION. (explicit_options, probe_options): New. (collect_explicit_location_matches): Complete on the explictit_loc->foo instead of word. Use linespec_complete_function. Handle MATCH_LINE. Handle offering keyword and options completions. (backup_text_ptr): Delete. (skip_keyword): New. (complete_explicit_location): Remove 'word' parameter. Add language, quoted_arg_start and quoted_arg_end parameters. Rewrite, parsing left to right. (location_completer): Rewrite. (location_completer_handle_brkchars): New function. (symbol_completer): Pass down complete_symbol_mode::EXPRESSION. (enum complete_line_internal_reason): Adjust comments. (completion_tracker::discard_completions): New. (completer_handle_brkchars_func_for_completer): Handle location_completer. (gdb_custom_word_point_brkchars) (gdb_org_rl_basic_quote_characters): New. (gdb_completion_word_break_characters_throw) (completion_find_completion_word): Handle trackers that use a custom word point. (completion_tracker::advance_custom_word_point_by): New. (completion_tracker::build_completion_result): Don't rely on readline appending the quote char. (gdb_rl_attempted_completion_function_throw): Handle trackers that use a custom word point. (gdb_rl_attempted_completion_function): Restore rl_basic_quote_characters. * completer.h (class completion_tracker): Extend intro comment. (completion_tracker::set_quote_char) (completion_tracker::quote_char) (completion_tracker::set_use_custom_word_point) (completion_tracker::use_custom_word_point) (completion_tracker::custom_word_point) (completion_tracker::set_custom_word_point) (completion_tracker::advance_custom_word_point_by) (completion_tracker::completes_to_completion_word) (completion_tracker::discard_completions): New methods. (completion_tracker::m_quote_char) (completion_tracker::m_use_custom_word_point) (completion_tracker::m_custom_word_point): New fields. (advance_to_expression_complete_word_point): Declare. * f-lang.c (f_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * language.h (struct language_defn) <la_collect_symbol_completion_matches>: Add complete_symbol_mode parameter. * linespec.c (linespec_keywords): Add NULL terminator. Make extern. (linespec_complete_function): New function. (linespec_lexer_lex_keyword): Adjust. * linespec.h (linespec_keywords, linespec_complete_function): New declarations. * location.c (find_end_quote): New function. (explicit_location_lex_one): Add explicit_completion_info parameter. Save quoting info. Don't throw if being called for completion. Don't handle Ada operators here. (is_cp_operator, skip_op_false_positives, first_of) (explicit_location_lex_one_function): New function. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. Handle it. Don't use explicit_location_lex_one to lex function names. Use explicit_location_lex_one_function instead. * location.h (struct explicit_completion_info): New. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. * symtab.c (default_collect_symbol_completion_matches_break_on): Add complete_symbol_mode parameter. Handle LINESPEC mode. (default_collect_symbol_completion_matches) (collect_symbol_completion_matches): Add complete_symbol_mode parameter. (collect_symbol_completion_matches_type): Pass down complete_symbol_mode::EXPRESSION. (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. Handle LINESPEC mode. * symtab.h (complete_symbol_mode): New. (default_collect_symbol_completion_matches_break_on) (default_collect_symbol_completion_matches) (collect_symbol_completion_matches) (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. gdb/testsuite/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * gdb.linespec/ls-errs.exp (do_test): Adjust expected output.
2017-07-17 21:21:33 +02:00
= explicit_location_lex_one (argp, language, NULL);
Explicit locations: add UI features for CLI This patch exposes explicit locations to the CLI user. This enables users to "explicitly" specify attributes of the breakpoint location to avoid any ambiguity that might otherwise exist with linespecs. The general syntax of explicit locations is: -source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME -label LABEL_NAME Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users may use the completer with either options or values. gdb/ChangeLog: * completer.c: Include location.h. (enum match_type): New enum. (location_completer): Rename to ... (linespec_completer): ... this. (collect_explicit_location_matches, backup_text_ptr) (explicit_location_completer): New functions. (location_completer): "New" function; handle linespec and explicit location completions. (complete_line_internal): Remove all location completer-specific handling. * linespec.c (linespec_lexer_lex_keyword, is_ada_operator) (find_toplevel_char): Export. (linespec_parse_line_offset): Export. Issue error if STRING is not numerical. (gdb_get_linespec_parser_quote_characters): New function. * linespec.h (linespec_parse_line_offset): Declare. (get_gdb_linespec_parser_quote_characters): Declare. (is_ada_operator): Declare. (find_toplevel_char): Declare. (linespec_lexer_lex_keyword): Declare. * location.c (explicit_to_event_location): New function. (explicit_location_lex_one): New function. (string_to_explicit_location): New function. (string_to_event_location): Handle explicit locations. * location.h (explicit_to_event_location): Declare. (string_to_explicit_location): Declare. gdb/testsuite/ChangeLog: * gdb.linespec/3explicit.c: New file. * gdb.linespec/cpexplicit.cc: New file. * gdb.linespec/cpexplicit.exp: New file. * gdb.linespec/explicit.c: New file. * gdb.linespec/explicit.exp: New file. * gdb.linespec/explicit2.c: New file. * gdb.linespec/ls-errs.exp: Add explicit location tests. * lib/gdb.exp (capture_command_output): Regexp-escape `command' before using in the matching pattern. Clarify that `prefix' is a regular expression.
2015-08-12 02:09:36 +02:00
Rewrite/enhance explicit locations completer, parse left->right One of the most annoying (to me) things about GDB's completion is when you have overloads in your program, and you want to set a breakpoint in one of them: void function(int); // set breakpoint here. void function(long); (gdb) b -f func[TAB] (gdb) b -f function( # ok, gdb completed as much as possible. (gdb) b -f function([TAB] # show me the overloads, please. <_all_ symbols in the program are shown...> E.g., when debugging GDB, that'd be: (gdb) b -f function([TAB] (anonymous namespace)::get_global()::global pt_insn_get_offset@plt scm_new_port_table_entry asprintf pt_pkt_alloc_decoder scm_new_port_table_entry@plt asprintf@plt pt_pkt_alloc_decoder@plt scm_out_of_range bt_ctf_get_char_array pt_pkt_sync_forward scm_out_of_range@plt bt_ctf_get_char_array@plt pt_pkt_sync_forward@plt scm_putc bt_ctf_get_uint64 pwrite scm_putc@plt bt_ctf_get_uint64@plt pwrite@plt scm_reverse_x bt_ctf_iter_read_event PyErr_Restore scm_reverse_x@plt bt_ctf_iter_read_event@plt PyErr_Restore@plt scm_set_port_filename_x <snip...> Now that's a load of completely useless completions. The reason GDB offers those is that the completer relies on readline figuring out the completion word point in the input line based on the language's word break characters, which include "(". So readline tells the completer to complete on "", the string that is after '('. Likewise, if you type "function(i[TAB]" to try to complete to "int", you're out of luck. GDB shows you all the symbols in the program that start with "i"... This makes sense for the expression completer, as what you'd want to type is e.g., a global variable, say: (gdb) print function(i[TAB] but, it makes no sense when specifying a function name for a breakpoint location. To get around that limitation, users need to quote the function name, like: (gdb) b -f 'function([TAB] function(int) function(long) (gdb) b 'function(i[TAB] (gdb) b 'function(int)' # now completes correctly! Note that the quoting is only necessary for completion. Creating the breakpoint does not require the quoting: (gdb) b -f function(int) [RET] Breakpoint 1 at .... This patch removes this limitation. ( Actually, it's a necessary patch, though not sufficient. That'll start working correctly by the end of the series. With this patch, if try it, you'll see: (gdb) b -f function(i[TAB] (gdb) b -f function i.e., gdb strips everything after the "(". That's caused by some code in symtab.c that'll be eliminated further down the series. These patches are all unfortunately interrelated, which is also the reason new tests only appear much later in the series. But let's ignore that reality for the remainder of the description. ) So... this patch gets rid of the need for quoting. It does that by adding a way for a completer to control the exact completion word point that readline should start the completion request for, instead of letting readline try to figure it out using the current language's word break chars array, and often failing. In the case above, we want the completer to figure out that it's completing a function name that starts with "function(i". It now does. It took me a while to figure out a way to ask readline to "use this exact word point", and for a while I feared that it'd be impossible with current readline (and having to rely on master readline for core functionality is something I'd like to avoid very much). Eventually, after several different attempts, I came up with what is described in the comment above gdb_custom_word_point_brkchars in the patch. With this patch, the handle_brkchars phase of the explicit location completer advances the expected word point as it parses the input line left to right, until it figures out exactly what we're completing, instead of expecting readline to break the string using the word break characters, and then having the completer heuristically fix up a bad decision by parsing the input string backwards. This allows correctly knowning that we're completing a symbol name after -function, complete functions without quoting, etc. Later, we'll make use of this same mechanims to implement a proper linespec completer that avoids need for quoting too. gdb/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * ada-lang.c (ada_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * cli/cli-cmds.c (complete_command): Get the completion result out of the handle_brkchars tracker if used a custom word point. * completer.c: Include "linespec.h". (enum explicit_location_match_type) <MATCH_LINE>: New enumerator. (advance_to_expression_complete_word_point): New. (completion_tracker::completes_to_completion_word): New. (complete_files_symbols): Pass down complete_symbol_mode::EXPRESSION. (explicit_options, probe_options): New. (collect_explicit_location_matches): Complete on the explictit_loc->foo instead of word. Use linespec_complete_function. Handle MATCH_LINE. Handle offering keyword and options completions. (backup_text_ptr): Delete. (skip_keyword): New. (complete_explicit_location): Remove 'word' parameter. Add language, quoted_arg_start and quoted_arg_end parameters. Rewrite, parsing left to right. (location_completer): Rewrite. (location_completer_handle_brkchars): New function. (symbol_completer): Pass down complete_symbol_mode::EXPRESSION. (enum complete_line_internal_reason): Adjust comments. (completion_tracker::discard_completions): New. (completer_handle_brkchars_func_for_completer): Handle location_completer. (gdb_custom_word_point_brkchars) (gdb_org_rl_basic_quote_characters): New. (gdb_completion_word_break_characters_throw) (completion_find_completion_word): Handle trackers that use a custom word point. (completion_tracker::advance_custom_word_point_by): New. (completion_tracker::build_completion_result): Don't rely on readline appending the quote char. (gdb_rl_attempted_completion_function_throw): Handle trackers that use a custom word point. (gdb_rl_attempted_completion_function): Restore rl_basic_quote_characters. * completer.h (class completion_tracker): Extend intro comment. (completion_tracker::set_quote_char) (completion_tracker::quote_char) (completion_tracker::set_use_custom_word_point) (completion_tracker::use_custom_word_point) (completion_tracker::custom_word_point) (completion_tracker::set_custom_word_point) (completion_tracker::advance_custom_word_point_by) (completion_tracker::completes_to_completion_word) (completion_tracker::discard_completions): New methods. (completion_tracker::m_quote_char) (completion_tracker::m_use_custom_word_point) (completion_tracker::m_custom_word_point): New fields. (advance_to_expression_complete_word_point): Declare. * f-lang.c (f_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * language.h (struct language_defn) <la_collect_symbol_completion_matches>: Add complete_symbol_mode parameter. * linespec.c (linespec_keywords): Add NULL terminator. Make extern. (linespec_complete_function): New function. (linespec_lexer_lex_keyword): Adjust. * linespec.h (linespec_keywords, linespec_complete_function): New declarations. * location.c (find_end_quote): New function. (explicit_location_lex_one): Add explicit_completion_info parameter. Save quoting info. Don't throw if being called for completion. Don't handle Ada operators here. (is_cp_operator, skip_op_false_positives, first_of) (explicit_location_lex_one_function): New function. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. Handle it. Don't use explicit_location_lex_one to lex function names. Use explicit_location_lex_one_function instead. * location.h (struct explicit_completion_info): New. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. * symtab.c (default_collect_symbol_completion_matches_break_on): Add complete_symbol_mode parameter. Handle LINESPEC mode. (default_collect_symbol_completion_matches) (collect_symbol_completion_matches): Add complete_symbol_mode parameter. (collect_symbol_completion_matches_type): Pass down complete_symbol_mode::EXPRESSION. (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. Handle LINESPEC mode. * symtab.h (complete_symbol_mode): New. (default_collect_symbol_completion_matches_break_on) (default_collect_symbol_completion_matches) (collect_symbol_completion_matches) (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. gdb/testsuite/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * gdb.linespec/ls-errs.exp (do_test): Adjust expected output.
2017-07-17 21:21:33 +02:00
/* Use the length of the option to allow abbreviations. */
len = strlen (opt.get ());
Explicit locations: add UI features for CLI This patch exposes explicit locations to the CLI user. This enables users to "explicitly" specify attributes of the breakpoint location to avoid any ambiguity that might otherwise exist with linespecs. The general syntax of explicit locations is: -source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME -label LABEL_NAME Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users may use the completer with either options or values. gdb/ChangeLog: * completer.c: Include location.h. (enum match_type): New enum. (location_completer): Rename to ... (linespec_completer): ... this. (collect_explicit_location_matches, backup_text_ptr) (explicit_location_completer): New functions. (location_completer): "New" function; handle linespec and explicit location completions. (complete_line_internal): Remove all location completer-specific handling. * linespec.c (linespec_lexer_lex_keyword, is_ada_operator) (find_toplevel_char): Export. (linespec_parse_line_offset): Export. Issue error if STRING is not numerical. (gdb_get_linespec_parser_quote_characters): New function. * linespec.h (linespec_parse_line_offset): Declare. (get_gdb_linespec_parser_quote_characters): Declare. (is_ada_operator): Declare. (find_toplevel_char): Declare. (linespec_lexer_lex_keyword): Declare. * location.c (explicit_to_event_location): New function. (explicit_location_lex_one): New function. (string_to_explicit_location): New function. (string_to_event_location): Handle explicit locations. * location.h (explicit_to_event_location): Declare. (string_to_explicit_location): Declare. gdb/testsuite/ChangeLog: * gdb.linespec/3explicit.c: New file. * gdb.linespec/cpexplicit.cc: New file. * gdb.linespec/cpexplicit.exp: New file. * gdb.linespec/explicit.c: New file. * gdb.linespec/explicit.exp: New file. * gdb.linespec/explicit2.c: New file. * gdb.linespec/ls-errs.exp: Add explicit location tests. * lib/gdb.exp (capture_command_output): Regexp-escape `command' before using in the matching pattern. Clarify that `prefix' is a regular expression.
2015-08-12 02:09:36 +02:00
/* Get the argument string. */
Rename _const functions to use overloading instead This renames a few functions -- skip_spaces_const, skip_to_space_const, get_number_const, extract_arg_const -- to drop the "_const" suffix and instead rely on overloading. This makes future const fixes simpler by reducing the number of lines that must be changed. I think it is also not any less clear, as all these functions have the same interface as their non-const versions by design. Furthermore there's an example of using an overload in-tree already, namely check_for_argument. This patch was largely created using some perl one-liners; then a few fixes were applied by hand. ChangeLog 2017-09-11 Tom Tromey <tom@tromey.com> * common/common-utils.h (skip_to_space): Remove macro, redeclare as function. (skip_to_space): Rename from skip_to_space_const. * common/common-utils.c (skip_to_space): New function. (skip_to_space): Rename from skip_to_space_const. * cli/cli-utils.h (get_number): Rename from get_number_const. (extract_arg): Rename from extract_arg_const. * cli/cli-utils.c (get_number): Rename from get_number_const. (extract_arg): Rename from extract_arg_const. (number_or_range_parser::get_number): Use ::get_number. * aarch64-linux-tdep.c, ada-lang.c, arm-linux-tdep.c, ax-gdb.c, break-catch-throw.c, breakpoint.c, cli/cli-cmds.c, cli/cli-dump.c, cli/cli-script.c, cli/cli-setshow.c, compile/compile.c, completer.c, demangle.c, disasm.c, findcmd.c, linespec.c, linux-tdep.c, linux-thread-db.c, location.c, mi/mi-parse.c, minsyms.c, nat/linux-procfs.c, printcmd.c, probe.c, python/py-breakpoint.c, record.c, rust-exp.y, serial.c, stack.c, stap-probe.c, tid-parse.c, tracepoint.c: Update all callers.
2017-09-10 22:19:19 +02:00
*argp = skip_spaces (*argp);
Explicit locations: add UI features for CLI This patch exposes explicit locations to the CLI user. This enables users to "explicitly" specify attributes of the breakpoint location to avoid any ambiguity that might otherwise exist with linespecs. The general syntax of explicit locations is: -source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME -label LABEL_NAME Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users may use the completer with either options or values. gdb/ChangeLog: * completer.c: Include location.h. (enum match_type): New enum. (location_completer): Rename to ... (linespec_completer): ... this. (collect_explicit_location_matches, backup_text_ptr) (explicit_location_completer): New functions. (location_completer): "New" function; handle linespec and explicit location completions. (complete_line_internal): Remove all location completer-specific handling. * linespec.c (linespec_lexer_lex_keyword, is_ada_operator) (find_toplevel_char): Export. (linespec_parse_line_offset): Export. Issue error if STRING is not numerical. (gdb_get_linespec_parser_quote_characters): New function. * linespec.h (linespec_parse_line_offset): Declare. (get_gdb_linespec_parser_quote_characters): Declare. (is_ada_operator): Declare. (find_toplevel_char): Declare. (linespec_lexer_lex_keyword): Declare. * location.c (explicit_to_event_location): New function. (explicit_location_lex_one): New function. (string_to_explicit_location): New function. (string_to_event_location): Handle explicit locations. * location.h (explicit_to_event_location): Declare. (string_to_explicit_location): Declare. gdb/testsuite/ChangeLog: * gdb.linespec/3explicit.c: New file. * gdb.linespec/cpexplicit.cc: New file. * gdb.linespec/cpexplicit.exp: New file. * gdb.linespec/explicit.c: New file. * gdb.linespec/explicit.exp: New file. * gdb.linespec/explicit2.c: New file. * gdb.linespec/ls-errs.exp: Add explicit location tests. * lib/gdb.exp (capture_command_output): Regexp-escape `command' before using in the matching pattern. Clarify that `prefix' is a regular expression.
2015-08-12 02:09:36 +02:00
Rewrite/enhance explicit locations completer, parse left->right One of the most annoying (to me) things about GDB's completion is when you have overloads in your program, and you want to set a breakpoint in one of them: void function(int); // set breakpoint here. void function(long); (gdb) b -f func[TAB] (gdb) b -f function( # ok, gdb completed as much as possible. (gdb) b -f function([TAB] # show me the overloads, please. <_all_ symbols in the program are shown...> E.g., when debugging GDB, that'd be: (gdb) b -f function([TAB] (anonymous namespace)::get_global()::global pt_insn_get_offset@plt scm_new_port_table_entry asprintf pt_pkt_alloc_decoder scm_new_port_table_entry@plt asprintf@plt pt_pkt_alloc_decoder@plt scm_out_of_range bt_ctf_get_char_array pt_pkt_sync_forward scm_out_of_range@plt bt_ctf_get_char_array@plt pt_pkt_sync_forward@plt scm_putc bt_ctf_get_uint64 pwrite scm_putc@plt bt_ctf_get_uint64@plt pwrite@plt scm_reverse_x bt_ctf_iter_read_event PyErr_Restore scm_reverse_x@plt bt_ctf_iter_read_event@plt PyErr_Restore@plt scm_set_port_filename_x <snip...> Now that's a load of completely useless completions. The reason GDB offers those is that the completer relies on readline figuring out the completion word point in the input line based on the language's word break characters, which include "(". So readline tells the completer to complete on "", the string that is after '('. Likewise, if you type "function(i[TAB]" to try to complete to "int", you're out of luck. GDB shows you all the symbols in the program that start with "i"... This makes sense for the expression completer, as what you'd want to type is e.g., a global variable, say: (gdb) print function(i[TAB] but, it makes no sense when specifying a function name for a breakpoint location. To get around that limitation, users need to quote the function name, like: (gdb) b -f 'function([TAB] function(int) function(long) (gdb) b 'function(i[TAB] (gdb) b 'function(int)' # now completes correctly! Note that the quoting is only necessary for completion. Creating the breakpoint does not require the quoting: (gdb) b -f function(int) [RET] Breakpoint 1 at .... This patch removes this limitation. ( Actually, it's a necessary patch, though not sufficient. That'll start working correctly by the end of the series. With this patch, if try it, you'll see: (gdb) b -f function(i[TAB] (gdb) b -f function i.e., gdb strips everything after the "(". That's caused by some code in symtab.c that'll be eliminated further down the series. These patches are all unfortunately interrelated, which is also the reason new tests only appear much later in the series. But let's ignore that reality for the remainder of the description. ) So... this patch gets rid of the need for quoting. It does that by adding a way for a completer to control the exact completion word point that readline should start the completion request for, instead of letting readline try to figure it out using the current language's word break chars array, and often failing. In the case above, we want the completer to figure out that it's completing a function name that starts with "function(i". It now does. It took me a while to figure out a way to ask readline to "use this exact word point", and for a while I feared that it'd be impossible with current readline (and having to rely on master readline for core functionality is something I'd like to avoid very much). Eventually, after several different attempts, I came up with what is described in the comment above gdb_custom_word_point_brkchars in the patch. With this patch, the handle_brkchars phase of the explicit location completer advances the expected word point as it parses the input line left to right, until it figures out exactly what we're completing, instead of expecting readline to break the string using the word break characters, and then having the completer heuristically fix up a bad decision by parsing the input string backwards. This allows correctly knowning that we're completing a symbol name after -function, complete functions without quoting, etc. Later, we'll make use of this same mechanims to implement a proper linespec completer that avoids need for quoting too. gdb/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * ada-lang.c (ada_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * cli/cli-cmds.c (complete_command): Get the completion result out of the handle_brkchars tracker if used a custom word point. * completer.c: Include "linespec.h". (enum explicit_location_match_type) <MATCH_LINE>: New enumerator. (advance_to_expression_complete_word_point): New. (completion_tracker::completes_to_completion_word): New. (complete_files_symbols): Pass down complete_symbol_mode::EXPRESSION. (explicit_options, probe_options): New. (collect_explicit_location_matches): Complete on the explictit_loc->foo instead of word. Use linespec_complete_function. Handle MATCH_LINE. Handle offering keyword and options completions. (backup_text_ptr): Delete. (skip_keyword): New. (complete_explicit_location): Remove 'word' parameter. Add language, quoted_arg_start and quoted_arg_end parameters. Rewrite, parsing left to right. (location_completer): Rewrite. (location_completer_handle_brkchars): New function. (symbol_completer): Pass down complete_symbol_mode::EXPRESSION. (enum complete_line_internal_reason): Adjust comments. (completion_tracker::discard_completions): New. (completer_handle_brkchars_func_for_completer): Handle location_completer. (gdb_custom_word_point_brkchars) (gdb_org_rl_basic_quote_characters): New. (gdb_completion_word_break_characters_throw) (completion_find_completion_word): Handle trackers that use a custom word point. (completion_tracker::advance_custom_word_point_by): New. (completion_tracker::build_completion_result): Don't rely on readline appending the quote char. (gdb_rl_attempted_completion_function_throw): Handle trackers that use a custom word point. (gdb_rl_attempted_completion_function): Restore rl_basic_quote_characters. * completer.h (class completion_tracker): Extend intro comment. (completion_tracker::set_quote_char) (completion_tracker::quote_char) (completion_tracker::set_use_custom_word_point) (completion_tracker::use_custom_word_point) (completion_tracker::custom_word_point) (completion_tracker::set_custom_word_point) (completion_tracker::advance_custom_word_point_by) (completion_tracker::completes_to_completion_word) (completion_tracker::discard_completions): New methods. (completion_tracker::m_quote_char) (completion_tracker::m_use_custom_word_point) (completion_tracker::m_custom_word_point): New fields. (advance_to_expression_complete_word_point): Declare. * f-lang.c (f_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * language.h (struct language_defn) <la_collect_symbol_completion_matches>: Add complete_symbol_mode parameter. * linespec.c (linespec_keywords): Add NULL terminator. Make extern. (linespec_complete_function): New function. (linespec_lexer_lex_keyword): Adjust. * linespec.h (linespec_keywords, linespec_complete_function): New declarations. * location.c (find_end_quote): New function. (explicit_location_lex_one): Add explicit_completion_info parameter. Save quoting info. Don't throw if being called for completion. Don't handle Ada operators here. (is_cp_operator, skip_op_false_positives, first_of) (explicit_location_lex_one_function): New function. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. Handle it. Don't use explicit_location_lex_one to lex function names. Use explicit_location_lex_one_function instead. * location.h (struct explicit_completion_info): New. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. * symtab.c (default_collect_symbol_completion_matches_break_on): Add complete_symbol_mode parameter. Handle LINESPEC mode. (default_collect_symbol_completion_matches) (collect_symbol_completion_matches): Add complete_symbol_mode parameter. (collect_symbol_completion_matches_type): Pass down complete_symbol_mode::EXPRESSION. (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. Handle LINESPEC mode. * symtab.h (complete_symbol_mode): New. (default_collect_symbol_completion_matches_break_on) (default_collect_symbol_completion_matches) (collect_symbol_completion_matches) (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. gdb/testsuite/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * gdb.linespec/ls-errs.exp (do_test): Adjust expected output.
2017-07-17 21:21:33 +02:00
/* All options have a required argument. Checking for this
required argument is deferred until later. */
gdb::unique_xmalloc_ptr<char> oarg;
/* True if we have an argument. This is required because we'll
move from OARG before checking whether we have an
argument. */
bool have_oarg = false;
/* Convenience to consistently set both OARG/HAVE_OARG from
ARG. */
auto set_oarg = [&] (gdb::unique_xmalloc_ptr<char> arg)
{
oarg = std::move (arg);
have_oarg = oarg != NULL;
};
Explicit locations: add UI features for CLI This patch exposes explicit locations to the CLI user. This enables users to "explicitly" specify attributes of the breakpoint location to avoid any ambiguity that might otherwise exist with linespecs. The general syntax of explicit locations is: -source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME -label LABEL_NAME Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users may use the completer with either options or values. gdb/ChangeLog: * completer.c: Include location.h. (enum match_type): New enum. (location_completer): Rename to ... (linespec_completer): ... this. (collect_explicit_location_matches, backup_text_ptr) (explicit_location_completer): New functions. (location_completer): "New" function; handle linespec and explicit location completions. (complete_line_internal): Remove all location completer-specific handling. * linespec.c (linespec_lexer_lex_keyword, is_ada_operator) (find_toplevel_char): Export. (linespec_parse_line_offset): Export. Issue error if STRING is not numerical. (gdb_get_linespec_parser_quote_characters): New function. * linespec.h (linespec_parse_line_offset): Declare. (get_gdb_linespec_parser_quote_characters): Declare. (is_ada_operator): Declare. (find_toplevel_char): Declare. (linespec_lexer_lex_keyword): Declare. * location.c (explicit_to_event_location): New function. (explicit_location_lex_one): New function. (string_to_explicit_location): New function. (string_to_event_location): Handle explicit locations. * location.h (explicit_to_event_location): Declare. (string_to_explicit_location): Declare. gdb/testsuite/ChangeLog: * gdb.linespec/3explicit.c: New file. * gdb.linespec/cpexplicit.cc: New file. * gdb.linespec/cpexplicit.exp: New file. * gdb.linespec/explicit.c: New file. * gdb.linespec/explicit.exp: New file. * gdb.linespec/explicit2.c: New file. * gdb.linespec/ls-errs.exp: Add explicit location tests. * lib/gdb.exp (capture_command_output): Regexp-escape `command' before using in the matching pattern. Clarify that `prefix' is a regular expression.
2015-08-12 02:09:36 +02:00
if (strncmp (opt.get (), "-source", len) == 0)
Rewrite/enhance explicit locations completer, parse left->right One of the most annoying (to me) things about GDB's completion is when you have overloads in your program, and you want to set a breakpoint in one of them: void function(int); // set breakpoint here. void function(long); (gdb) b -f func[TAB] (gdb) b -f function( # ok, gdb completed as much as possible. (gdb) b -f function([TAB] # show me the overloads, please. <_all_ symbols in the program are shown...> E.g., when debugging GDB, that'd be: (gdb) b -f function([TAB] (anonymous namespace)::get_global()::global pt_insn_get_offset@plt scm_new_port_table_entry asprintf pt_pkt_alloc_decoder scm_new_port_table_entry@plt asprintf@plt pt_pkt_alloc_decoder@plt scm_out_of_range bt_ctf_get_char_array pt_pkt_sync_forward scm_out_of_range@plt bt_ctf_get_char_array@plt pt_pkt_sync_forward@plt scm_putc bt_ctf_get_uint64 pwrite scm_putc@plt bt_ctf_get_uint64@plt pwrite@plt scm_reverse_x bt_ctf_iter_read_event PyErr_Restore scm_reverse_x@plt bt_ctf_iter_read_event@plt PyErr_Restore@plt scm_set_port_filename_x <snip...> Now that's a load of completely useless completions. The reason GDB offers those is that the completer relies on readline figuring out the completion word point in the input line based on the language's word break characters, which include "(". So readline tells the completer to complete on "", the string that is after '('. Likewise, if you type "function(i[TAB]" to try to complete to "int", you're out of luck. GDB shows you all the symbols in the program that start with "i"... This makes sense for the expression completer, as what you'd want to type is e.g., a global variable, say: (gdb) print function(i[TAB] but, it makes no sense when specifying a function name for a breakpoint location. To get around that limitation, users need to quote the function name, like: (gdb) b -f 'function([TAB] function(int) function(long) (gdb) b 'function(i[TAB] (gdb) b 'function(int)' # now completes correctly! Note that the quoting is only necessary for completion. Creating the breakpoint does not require the quoting: (gdb) b -f function(int) [RET] Breakpoint 1 at .... This patch removes this limitation. ( Actually, it's a necessary patch, though not sufficient. That'll start working correctly by the end of the series. With this patch, if try it, you'll see: (gdb) b -f function(i[TAB] (gdb) b -f function i.e., gdb strips everything after the "(". That's caused by some code in symtab.c that'll be eliminated further down the series. These patches are all unfortunately interrelated, which is also the reason new tests only appear much later in the series. But let's ignore that reality for the remainder of the description. ) So... this patch gets rid of the need for quoting. It does that by adding a way for a completer to control the exact completion word point that readline should start the completion request for, instead of letting readline try to figure it out using the current language's word break chars array, and often failing. In the case above, we want the completer to figure out that it's completing a function name that starts with "function(i". It now does. It took me a while to figure out a way to ask readline to "use this exact word point", and for a while I feared that it'd be impossible with current readline (and having to rely on master readline for core functionality is something I'd like to avoid very much). Eventually, after several different attempts, I came up with what is described in the comment above gdb_custom_word_point_brkchars in the patch. With this patch, the handle_brkchars phase of the explicit location completer advances the expected word point as it parses the input line left to right, until it figures out exactly what we're completing, instead of expecting readline to break the string using the word break characters, and then having the completer heuristically fix up a bad decision by parsing the input string backwards. This allows correctly knowning that we're completing a symbol name after -function, complete functions without quoting, etc. Later, we'll make use of this same mechanims to implement a proper linespec completer that avoids need for quoting too. gdb/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * ada-lang.c (ada_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * cli/cli-cmds.c (complete_command): Get the completion result out of the handle_brkchars tracker if used a custom word point. * completer.c: Include "linespec.h". (enum explicit_location_match_type) <MATCH_LINE>: New enumerator. (advance_to_expression_complete_word_point): New. (completion_tracker::completes_to_completion_word): New. (complete_files_symbols): Pass down complete_symbol_mode::EXPRESSION. (explicit_options, probe_options): New. (collect_explicit_location_matches): Complete on the explictit_loc->foo instead of word. Use linespec_complete_function. Handle MATCH_LINE. Handle offering keyword and options completions. (backup_text_ptr): Delete. (skip_keyword): New. (complete_explicit_location): Remove 'word' parameter. Add language, quoted_arg_start and quoted_arg_end parameters. Rewrite, parsing left to right. (location_completer): Rewrite. (location_completer_handle_brkchars): New function. (symbol_completer): Pass down complete_symbol_mode::EXPRESSION. (enum complete_line_internal_reason): Adjust comments. (completion_tracker::discard_completions): New. (completer_handle_brkchars_func_for_completer): Handle location_completer. (gdb_custom_word_point_brkchars) (gdb_org_rl_basic_quote_characters): New. (gdb_completion_word_break_characters_throw) (completion_find_completion_word): Handle trackers that use a custom word point. (completion_tracker::advance_custom_word_point_by): New. (completion_tracker::build_completion_result): Don't rely on readline appending the quote char. (gdb_rl_attempted_completion_function_throw): Handle trackers that use a custom word point. (gdb_rl_attempted_completion_function): Restore rl_basic_quote_characters. * completer.h (class completion_tracker): Extend intro comment. (completion_tracker::set_quote_char) (completion_tracker::quote_char) (completion_tracker::set_use_custom_word_point) (completion_tracker::use_custom_word_point) (completion_tracker::custom_word_point) (completion_tracker::set_custom_word_point) (completion_tracker::advance_custom_word_point_by) (completion_tracker::completes_to_completion_word) (completion_tracker::discard_completions): New methods. (completion_tracker::m_quote_char) (completion_tracker::m_use_custom_word_point) (completion_tracker::m_custom_word_point): New fields. (advance_to_expression_complete_word_point): Declare. * f-lang.c (f_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * language.h (struct language_defn) <la_collect_symbol_completion_matches>: Add complete_symbol_mode parameter. * linespec.c (linespec_keywords): Add NULL terminator. Make extern. (linespec_complete_function): New function. (linespec_lexer_lex_keyword): Adjust. * linespec.h (linespec_keywords, linespec_complete_function): New declarations. * location.c (find_end_quote): New function. (explicit_location_lex_one): Add explicit_completion_info parameter. Save quoting info. Don't throw if being called for completion. Don't handle Ada operators here. (is_cp_operator, skip_op_false_positives, first_of) (explicit_location_lex_one_function): New function. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. Handle it. Don't use explicit_location_lex_one to lex function names. Use explicit_location_lex_one_function instead. * location.h (struct explicit_completion_info): New. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. * symtab.c (default_collect_symbol_completion_matches_break_on): Add complete_symbol_mode parameter. Handle LINESPEC mode. (default_collect_symbol_completion_matches) (collect_symbol_completion_matches): Add complete_symbol_mode parameter. (collect_symbol_completion_matches_type): Pass down complete_symbol_mode::EXPRESSION. (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. Handle LINESPEC mode. * symtab.h (complete_symbol_mode): New. (default_collect_symbol_completion_matches_break_on) (default_collect_symbol_completion_matches) (collect_symbol_completion_matches) (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. gdb/testsuite/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * gdb.linespec/ls-errs.exp (do_test): Adjust expected output.
2017-07-17 21:21:33 +02:00
{
set_oarg (explicit_location_lex_one (argp, language,
completion_info));
EL_EXPLICIT (location)->source_filename = oarg.release ();
}
else if (strncmp (opt.get (), "-function", len) == 0)
Rewrite/enhance explicit locations completer, parse left->right One of the most annoying (to me) things about GDB's completion is when you have overloads in your program, and you want to set a breakpoint in one of them: void function(int); // set breakpoint here. void function(long); (gdb) b -f func[TAB] (gdb) b -f function( # ok, gdb completed as much as possible. (gdb) b -f function([TAB] # show me the overloads, please. <_all_ symbols in the program are shown...> E.g., when debugging GDB, that'd be: (gdb) b -f function([TAB] (anonymous namespace)::get_global()::global pt_insn_get_offset@plt scm_new_port_table_entry asprintf pt_pkt_alloc_decoder scm_new_port_table_entry@plt asprintf@plt pt_pkt_alloc_decoder@plt scm_out_of_range bt_ctf_get_char_array pt_pkt_sync_forward scm_out_of_range@plt bt_ctf_get_char_array@plt pt_pkt_sync_forward@plt scm_putc bt_ctf_get_uint64 pwrite scm_putc@plt bt_ctf_get_uint64@plt pwrite@plt scm_reverse_x bt_ctf_iter_read_event PyErr_Restore scm_reverse_x@plt bt_ctf_iter_read_event@plt PyErr_Restore@plt scm_set_port_filename_x <snip...> Now that's a load of completely useless completions. The reason GDB offers those is that the completer relies on readline figuring out the completion word point in the input line based on the language's word break characters, which include "(". So readline tells the completer to complete on "", the string that is after '('. Likewise, if you type "function(i[TAB]" to try to complete to "int", you're out of luck. GDB shows you all the symbols in the program that start with "i"... This makes sense for the expression completer, as what you'd want to type is e.g., a global variable, say: (gdb) print function(i[TAB] but, it makes no sense when specifying a function name for a breakpoint location. To get around that limitation, users need to quote the function name, like: (gdb) b -f 'function([TAB] function(int) function(long) (gdb) b 'function(i[TAB] (gdb) b 'function(int)' # now completes correctly! Note that the quoting is only necessary for completion. Creating the breakpoint does not require the quoting: (gdb) b -f function(int) [RET] Breakpoint 1 at .... This patch removes this limitation. ( Actually, it's a necessary patch, though not sufficient. That'll start working correctly by the end of the series. With this patch, if try it, you'll see: (gdb) b -f function(i[TAB] (gdb) b -f function i.e., gdb strips everything after the "(". That's caused by some code in symtab.c that'll be eliminated further down the series. These patches are all unfortunately interrelated, which is also the reason new tests only appear much later in the series. But let's ignore that reality for the remainder of the description. ) So... this patch gets rid of the need for quoting. It does that by adding a way for a completer to control the exact completion word point that readline should start the completion request for, instead of letting readline try to figure it out using the current language's word break chars array, and often failing. In the case above, we want the completer to figure out that it's completing a function name that starts with "function(i". It now does. It took me a while to figure out a way to ask readline to "use this exact word point", and for a while I feared that it'd be impossible with current readline (and having to rely on master readline for core functionality is something I'd like to avoid very much). Eventually, after several different attempts, I came up with what is described in the comment above gdb_custom_word_point_brkchars in the patch. With this patch, the handle_brkchars phase of the explicit location completer advances the expected word point as it parses the input line left to right, until it figures out exactly what we're completing, instead of expecting readline to break the string using the word break characters, and then having the completer heuristically fix up a bad decision by parsing the input string backwards. This allows correctly knowning that we're completing a symbol name after -function, complete functions without quoting, etc. Later, we'll make use of this same mechanims to implement a proper linespec completer that avoids need for quoting too. gdb/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * ada-lang.c (ada_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * cli/cli-cmds.c (complete_command): Get the completion result out of the handle_brkchars tracker if used a custom word point. * completer.c: Include "linespec.h". (enum explicit_location_match_type) <MATCH_LINE>: New enumerator. (advance_to_expression_complete_word_point): New. (completion_tracker::completes_to_completion_word): New. (complete_files_symbols): Pass down complete_symbol_mode::EXPRESSION. (explicit_options, probe_options): New. (collect_explicit_location_matches): Complete on the explictit_loc->foo instead of word. Use linespec_complete_function. Handle MATCH_LINE. Handle offering keyword and options completions. (backup_text_ptr): Delete. (skip_keyword): New. (complete_explicit_location): Remove 'word' parameter. Add language, quoted_arg_start and quoted_arg_end parameters. Rewrite, parsing left to right. (location_completer): Rewrite. (location_completer_handle_brkchars): New function. (symbol_completer): Pass down complete_symbol_mode::EXPRESSION. (enum complete_line_internal_reason): Adjust comments. (completion_tracker::discard_completions): New. (completer_handle_brkchars_func_for_completer): Handle location_completer. (gdb_custom_word_point_brkchars) (gdb_org_rl_basic_quote_characters): New. (gdb_completion_word_break_characters_throw) (completion_find_completion_word): Handle trackers that use a custom word point. (completion_tracker::advance_custom_word_point_by): New. (completion_tracker::build_completion_result): Don't rely on readline appending the quote char. (gdb_rl_attempted_completion_function_throw): Handle trackers that use a custom word point. (gdb_rl_attempted_completion_function): Restore rl_basic_quote_characters. * completer.h (class completion_tracker): Extend intro comment. (completion_tracker::set_quote_char) (completion_tracker::quote_char) (completion_tracker::set_use_custom_word_point) (completion_tracker::use_custom_word_point) (completion_tracker::custom_word_point) (completion_tracker::set_custom_word_point) (completion_tracker::advance_custom_word_point_by) (completion_tracker::completes_to_completion_word) (completion_tracker::discard_completions): New methods. (completion_tracker::m_quote_char) (completion_tracker::m_use_custom_word_point) (completion_tracker::m_custom_word_point): New fields. (advance_to_expression_complete_word_point): Declare. * f-lang.c (f_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * language.h (struct language_defn) <la_collect_symbol_completion_matches>: Add complete_symbol_mode parameter. * linespec.c (linespec_keywords): Add NULL terminator. Make extern. (linespec_complete_function): New function. (linespec_lexer_lex_keyword): Adjust. * linespec.h (linespec_keywords, linespec_complete_function): New declarations. * location.c (find_end_quote): New function. (explicit_location_lex_one): Add explicit_completion_info parameter. Save quoting info. Don't throw if being called for completion. Don't handle Ada operators here. (is_cp_operator, skip_op_false_positives, first_of) (explicit_location_lex_one_function): New function. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. Handle it. Don't use explicit_location_lex_one to lex function names. Use explicit_location_lex_one_function instead. * location.h (struct explicit_completion_info): New. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. * symtab.c (default_collect_symbol_completion_matches_break_on): Add complete_symbol_mode parameter. Handle LINESPEC mode. (default_collect_symbol_completion_matches) (collect_symbol_completion_matches): Add complete_symbol_mode parameter. (collect_symbol_completion_matches_type): Pass down complete_symbol_mode::EXPRESSION. (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. Handle LINESPEC mode. * symtab.h (complete_symbol_mode): New. (default_collect_symbol_completion_matches_break_on) (default_collect_symbol_completion_matches) (collect_symbol_completion_matches) (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. gdb/testsuite/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * gdb.linespec/ls-errs.exp (do_test): Adjust expected output.
2017-07-17 21:21:33 +02:00
{
set_oarg (explicit_location_lex_one_function (argp, language,
completion_info));
EL_EXPLICIT (location)->function_name = oarg.release ();
}
else if (strncmp (opt.get (), "-line", len) == 0)
Explicit locations: add UI features for CLI This patch exposes explicit locations to the CLI user. This enables users to "explicitly" specify attributes of the breakpoint location to avoid any ambiguity that might otherwise exist with linespecs. The general syntax of explicit locations is: -source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME -label LABEL_NAME Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users may use the completer with either options or values. gdb/ChangeLog: * completer.c: Include location.h. (enum match_type): New enum. (location_completer): Rename to ... (linespec_completer): ... this. (collect_explicit_location_matches, backup_text_ptr) (explicit_location_completer): New functions. (location_completer): "New" function; handle linespec and explicit location completions. (complete_line_internal): Remove all location completer-specific handling. * linespec.c (linespec_lexer_lex_keyword, is_ada_operator) (find_toplevel_char): Export. (linespec_parse_line_offset): Export. Issue error if STRING is not numerical. (gdb_get_linespec_parser_quote_characters): New function. * linespec.h (linespec_parse_line_offset): Declare. (get_gdb_linespec_parser_quote_characters): Declare. (is_ada_operator): Declare. (find_toplevel_char): Declare. (linespec_lexer_lex_keyword): Declare. * location.c (explicit_to_event_location): New function. (explicit_location_lex_one): New function. (string_to_explicit_location): New function. (string_to_event_location): Handle explicit locations. * location.h (explicit_to_event_location): Declare. (string_to_explicit_location): Declare. gdb/testsuite/ChangeLog: * gdb.linespec/3explicit.c: New file. * gdb.linespec/cpexplicit.cc: New file. * gdb.linespec/cpexplicit.exp: New file. * gdb.linespec/explicit.c: New file. * gdb.linespec/explicit.exp: New file. * gdb.linespec/explicit2.c: New file. * gdb.linespec/ls-errs.exp: Add explicit location tests. * lib/gdb.exp (capture_command_output): Regexp-escape `command' before using in the matching pattern. Clarify that `prefix' is a regular expression.
2015-08-12 02:09:36 +02:00
{
Rewrite/enhance explicit locations completer, parse left->right One of the most annoying (to me) things about GDB's completion is when you have overloads in your program, and you want to set a breakpoint in one of them: void function(int); // set breakpoint here. void function(long); (gdb) b -f func[TAB] (gdb) b -f function( # ok, gdb completed as much as possible. (gdb) b -f function([TAB] # show me the overloads, please. <_all_ symbols in the program are shown...> E.g., when debugging GDB, that'd be: (gdb) b -f function([TAB] (anonymous namespace)::get_global()::global pt_insn_get_offset@plt scm_new_port_table_entry asprintf pt_pkt_alloc_decoder scm_new_port_table_entry@plt asprintf@plt pt_pkt_alloc_decoder@plt scm_out_of_range bt_ctf_get_char_array pt_pkt_sync_forward scm_out_of_range@plt bt_ctf_get_char_array@plt pt_pkt_sync_forward@plt scm_putc bt_ctf_get_uint64 pwrite scm_putc@plt bt_ctf_get_uint64@plt pwrite@plt scm_reverse_x bt_ctf_iter_read_event PyErr_Restore scm_reverse_x@plt bt_ctf_iter_read_event@plt PyErr_Restore@plt scm_set_port_filename_x <snip...> Now that's a load of completely useless completions. The reason GDB offers those is that the completer relies on readline figuring out the completion word point in the input line based on the language's word break characters, which include "(". So readline tells the completer to complete on "", the string that is after '('. Likewise, if you type "function(i[TAB]" to try to complete to "int", you're out of luck. GDB shows you all the symbols in the program that start with "i"... This makes sense for the expression completer, as what you'd want to type is e.g., a global variable, say: (gdb) print function(i[TAB] but, it makes no sense when specifying a function name for a breakpoint location. To get around that limitation, users need to quote the function name, like: (gdb) b -f 'function([TAB] function(int) function(long) (gdb) b 'function(i[TAB] (gdb) b 'function(int)' # now completes correctly! Note that the quoting is only necessary for completion. Creating the breakpoint does not require the quoting: (gdb) b -f function(int) [RET] Breakpoint 1 at .... This patch removes this limitation. ( Actually, it's a necessary patch, though not sufficient. That'll start working correctly by the end of the series. With this patch, if try it, you'll see: (gdb) b -f function(i[TAB] (gdb) b -f function i.e., gdb strips everything after the "(". That's caused by some code in symtab.c that'll be eliminated further down the series. These patches are all unfortunately interrelated, which is also the reason new tests only appear much later in the series. But let's ignore that reality for the remainder of the description. ) So... this patch gets rid of the need for quoting. It does that by adding a way for a completer to control the exact completion word point that readline should start the completion request for, instead of letting readline try to figure it out using the current language's word break chars array, and often failing. In the case above, we want the completer to figure out that it's completing a function name that starts with "function(i". It now does. It took me a while to figure out a way to ask readline to "use this exact word point", and for a while I feared that it'd be impossible with current readline (and having to rely on master readline for core functionality is something I'd like to avoid very much). Eventually, after several different attempts, I came up with what is described in the comment above gdb_custom_word_point_brkchars in the patch. With this patch, the handle_brkchars phase of the explicit location completer advances the expected word point as it parses the input line left to right, until it figures out exactly what we're completing, instead of expecting readline to break the string using the word break characters, and then having the completer heuristically fix up a bad decision by parsing the input string backwards. This allows correctly knowning that we're completing a symbol name after -function, complete functions without quoting, etc. Later, we'll make use of this same mechanims to implement a proper linespec completer that avoids need for quoting too. gdb/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * ada-lang.c (ada_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * cli/cli-cmds.c (complete_command): Get the completion result out of the handle_brkchars tracker if used a custom word point. * completer.c: Include "linespec.h". (enum explicit_location_match_type) <MATCH_LINE>: New enumerator. (advance_to_expression_complete_word_point): New. (completion_tracker::completes_to_completion_word): New. (complete_files_symbols): Pass down complete_symbol_mode::EXPRESSION. (explicit_options, probe_options): New. (collect_explicit_location_matches): Complete on the explictit_loc->foo instead of word. Use linespec_complete_function. Handle MATCH_LINE. Handle offering keyword and options completions. (backup_text_ptr): Delete. (skip_keyword): New. (complete_explicit_location): Remove 'word' parameter. Add language, quoted_arg_start and quoted_arg_end parameters. Rewrite, parsing left to right. (location_completer): Rewrite. (location_completer_handle_brkchars): New function. (symbol_completer): Pass down complete_symbol_mode::EXPRESSION. (enum complete_line_internal_reason): Adjust comments. (completion_tracker::discard_completions): New. (completer_handle_brkchars_func_for_completer): Handle location_completer. (gdb_custom_word_point_brkchars) (gdb_org_rl_basic_quote_characters): New. (gdb_completion_word_break_characters_throw) (completion_find_completion_word): Handle trackers that use a custom word point. (completion_tracker::advance_custom_word_point_by): New. (completion_tracker::build_completion_result): Don't rely on readline appending the quote char. (gdb_rl_attempted_completion_function_throw): Handle trackers that use a custom word point. (gdb_rl_attempted_completion_function): Restore rl_basic_quote_characters. * completer.h (class completion_tracker): Extend intro comment. (completion_tracker::set_quote_char) (completion_tracker::quote_char) (completion_tracker::set_use_custom_word_point) (completion_tracker::use_custom_word_point) (completion_tracker::custom_word_point) (completion_tracker::set_custom_word_point) (completion_tracker::advance_custom_word_point_by) (completion_tracker::completes_to_completion_word) (completion_tracker::discard_completions): New methods. (completion_tracker::m_quote_char) (completion_tracker::m_use_custom_word_point) (completion_tracker::m_custom_word_point): New fields. (advance_to_expression_complete_word_point): Declare. * f-lang.c (f_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * language.h (struct language_defn) <la_collect_symbol_completion_matches>: Add complete_symbol_mode parameter. * linespec.c (linespec_keywords): Add NULL terminator. Make extern. (linespec_complete_function): New function. (linespec_lexer_lex_keyword): Adjust. * linespec.h (linespec_keywords, linespec_complete_function): New declarations. * location.c (find_end_quote): New function. (explicit_location_lex_one): Add explicit_completion_info parameter. Save quoting info. Don't throw if being called for completion. Don't handle Ada operators here. (is_cp_operator, skip_op_false_positives, first_of) (explicit_location_lex_one_function): New function. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. Handle it. Don't use explicit_location_lex_one to lex function names. Use explicit_location_lex_one_function instead. * location.h (struct explicit_completion_info): New. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. * symtab.c (default_collect_symbol_completion_matches_break_on): Add complete_symbol_mode parameter. Handle LINESPEC mode. (default_collect_symbol_completion_matches) (collect_symbol_completion_matches): Add complete_symbol_mode parameter. (collect_symbol_completion_matches_type): Pass down complete_symbol_mode::EXPRESSION. (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. Handle LINESPEC mode. * symtab.h (complete_symbol_mode): New. (default_collect_symbol_completion_matches_break_on) (default_collect_symbol_completion_matches) (collect_symbol_completion_matches) (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. gdb/testsuite/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * gdb.linespec/ls-errs.exp (do_test): Adjust expected output.
2017-07-17 21:21:33 +02:00
set_oarg (explicit_location_lex_one (argp, language, NULL));
Rename _const functions to use overloading instead This renames a few functions -- skip_spaces_const, skip_to_space_const, get_number_const, extract_arg_const -- to drop the "_const" suffix and instead rely on overloading. This makes future const fixes simpler by reducing the number of lines that must be changed. I think it is also not any less clear, as all these functions have the same interface as their non-const versions by design. Furthermore there's an example of using an overload in-tree already, namely check_for_argument. This patch was largely created using some perl one-liners; then a few fixes were applied by hand. ChangeLog 2017-09-11 Tom Tromey <tom@tromey.com> * common/common-utils.h (skip_to_space): Remove macro, redeclare as function. (skip_to_space): Rename from skip_to_space_const. * common/common-utils.c (skip_to_space): New function. (skip_to_space): Rename from skip_to_space_const. * cli/cli-utils.h (get_number): Rename from get_number_const. (extract_arg): Rename from extract_arg_const. * cli/cli-utils.c (get_number): Rename from get_number_const. (extract_arg): Rename from extract_arg_const. (number_or_range_parser::get_number): Use ::get_number. * aarch64-linux-tdep.c, ada-lang.c, arm-linux-tdep.c, ax-gdb.c, break-catch-throw.c, breakpoint.c, cli/cli-cmds.c, cli/cli-dump.c, cli/cli-script.c, cli/cli-setshow.c, compile/compile.c, completer.c, demangle.c, disasm.c, findcmd.c, linespec.c, linux-tdep.c, linux-thread-db.c, location.c, mi/mi-parse.c, minsyms.c, nat/linux-procfs.c, printcmd.c, probe.c, python/py-breakpoint.c, record.c, rust-exp.y, serial.c, stack.c, stap-probe.c, tid-parse.c, tracepoint.c: Update all callers.
2017-09-10 22:19:19 +02:00
*argp = skip_spaces (*argp);
if (have_oarg)
Rewrite/enhance explicit locations completer, parse left->right One of the most annoying (to me) things about GDB's completion is when you have overloads in your program, and you want to set a breakpoint in one of them: void function(int); // set breakpoint here. void function(long); (gdb) b -f func[TAB] (gdb) b -f function( # ok, gdb completed as much as possible. (gdb) b -f function([TAB] # show me the overloads, please. <_all_ symbols in the program are shown...> E.g., when debugging GDB, that'd be: (gdb) b -f function([TAB] (anonymous namespace)::get_global()::global pt_insn_get_offset@plt scm_new_port_table_entry asprintf pt_pkt_alloc_decoder scm_new_port_table_entry@plt asprintf@plt pt_pkt_alloc_decoder@plt scm_out_of_range bt_ctf_get_char_array pt_pkt_sync_forward scm_out_of_range@plt bt_ctf_get_char_array@plt pt_pkt_sync_forward@plt scm_putc bt_ctf_get_uint64 pwrite scm_putc@plt bt_ctf_get_uint64@plt pwrite@plt scm_reverse_x bt_ctf_iter_read_event PyErr_Restore scm_reverse_x@plt bt_ctf_iter_read_event@plt PyErr_Restore@plt scm_set_port_filename_x <snip...> Now that's a load of completely useless completions. The reason GDB offers those is that the completer relies on readline figuring out the completion word point in the input line based on the language's word break characters, which include "(". So readline tells the completer to complete on "", the string that is after '('. Likewise, if you type "function(i[TAB]" to try to complete to "int", you're out of luck. GDB shows you all the symbols in the program that start with "i"... This makes sense for the expression completer, as what you'd want to type is e.g., a global variable, say: (gdb) print function(i[TAB] but, it makes no sense when specifying a function name for a breakpoint location. To get around that limitation, users need to quote the function name, like: (gdb) b -f 'function([TAB] function(int) function(long) (gdb) b 'function(i[TAB] (gdb) b 'function(int)' # now completes correctly! Note that the quoting is only necessary for completion. Creating the breakpoint does not require the quoting: (gdb) b -f function(int) [RET] Breakpoint 1 at .... This patch removes this limitation. ( Actually, it's a necessary patch, though not sufficient. That'll start working correctly by the end of the series. With this patch, if try it, you'll see: (gdb) b -f function(i[TAB] (gdb) b -f function i.e., gdb strips everything after the "(". That's caused by some code in symtab.c that'll be eliminated further down the series. These patches are all unfortunately interrelated, which is also the reason new tests only appear much later in the series. But let's ignore that reality for the remainder of the description. ) So... this patch gets rid of the need for quoting. It does that by adding a way for a completer to control the exact completion word point that readline should start the completion request for, instead of letting readline try to figure it out using the current language's word break chars array, and often failing. In the case above, we want the completer to figure out that it's completing a function name that starts with "function(i". It now does. It took me a while to figure out a way to ask readline to "use this exact word point", and for a while I feared that it'd be impossible with current readline (and having to rely on master readline for core functionality is something I'd like to avoid very much). Eventually, after several different attempts, I came up with what is described in the comment above gdb_custom_word_point_brkchars in the patch. With this patch, the handle_brkchars phase of the explicit location completer advances the expected word point as it parses the input line left to right, until it figures out exactly what we're completing, instead of expecting readline to break the string using the word break characters, and then having the completer heuristically fix up a bad decision by parsing the input string backwards. This allows correctly knowning that we're completing a symbol name after -function, complete functions without quoting, etc. Later, we'll make use of this same mechanims to implement a proper linespec completer that avoids need for quoting too. gdb/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * ada-lang.c (ada_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * cli/cli-cmds.c (complete_command): Get the completion result out of the handle_brkchars tracker if used a custom word point. * completer.c: Include "linespec.h". (enum explicit_location_match_type) <MATCH_LINE>: New enumerator. (advance_to_expression_complete_word_point): New. (completion_tracker::completes_to_completion_word): New. (complete_files_symbols): Pass down complete_symbol_mode::EXPRESSION. (explicit_options, probe_options): New. (collect_explicit_location_matches): Complete on the explictit_loc->foo instead of word. Use linespec_complete_function. Handle MATCH_LINE. Handle offering keyword and options completions. (backup_text_ptr): Delete. (skip_keyword): New. (complete_explicit_location): Remove 'word' parameter. Add language, quoted_arg_start and quoted_arg_end parameters. Rewrite, parsing left to right. (location_completer): Rewrite. (location_completer_handle_brkchars): New function. (symbol_completer): Pass down complete_symbol_mode::EXPRESSION. (enum complete_line_internal_reason): Adjust comments. (completion_tracker::discard_completions): New. (completer_handle_brkchars_func_for_completer): Handle location_completer. (gdb_custom_word_point_brkchars) (gdb_org_rl_basic_quote_characters): New. (gdb_completion_word_break_characters_throw) (completion_find_completion_word): Handle trackers that use a custom word point. (completion_tracker::advance_custom_word_point_by): New. (completion_tracker::build_completion_result): Don't rely on readline appending the quote char. (gdb_rl_attempted_completion_function_throw): Handle trackers that use a custom word point. (gdb_rl_attempted_completion_function): Restore rl_basic_quote_characters. * completer.h (class completion_tracker): Extend intro comment. (completion_tracker::set_quote_char) (completion_tracker::quote_char) (completion_tracker::set_use_custom_word_point) (completion_tracker::use_custom_word_point) (completion_tracker::custom_word_point) (completion_tracker::set_custom_word_point) (completion_tracker::advance_custom_word_point_by) (completion_tracker::completes_to_completion_word) (completion_tracker::discard_completions): New methods. (completion_tracker::m_quote_char) (completion_tracker::m_use_custom_word_point) (completion_tracker::m_custom_word_point): New fields. (advance_to_expression_complete_word_point): Declare. * f-lang.c (f_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * language.h (struct language_defn) <la_collect_symbol_completion_matches>: Add complete_symbol_mode parameter. * linespec.c (linespec_keywords): Add NULL terminator. Make extern. (linespec_complete_function): New function. (linespec_lexer_lex_keyword): Adjust. * linespec.h (linespec_keywords, linespec_complete_function): New declarations. * location.c (find_end_quote): New function. (explicit_location_lex_one): Add explicit_completion_info parameter. Save quoting info. Don't throw if being called for completion. Don't handle Ada operators here. (is_cp_operator, skip_op_false_positives, first_of) (explicit_location_lex_one_function): New function. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. Handle it. Don't use explicit_location_lex_one to lex function names. Use explicit_location_lex_one_function instead. * location.h (struct explicit_completion_info): New. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. * symtab.c (default_collect_symbol_completion_matches_break_on): Add complete_symbol_mode parameter. Handle LINESPEC mode. (default_collect_symbol_completion_matches) (collect_symbol_completion_matches): Add complete_symbol_mode parameter. (collect_symbol_completion_matches_type): Pass down complete_symbol_mode::EXPRESSION. (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. Handle LINESPEC mode. * symtab.h (complete_symbol_mode): New. (default_collect_symbol_completion_matches_break_on) (default_collect_symbol_completion_matches) (collect_symbol_completion_matches) (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. gdb/testsuite/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * gdb.linespec/ls-errs.exp (do_test): Adjust expected output.
2017-07-17 21:21:33 +02:00
{
EL_EXPLICIT (location)->line_offset
= linespec_parse_line_offset (oarg.get ());
continue;
}
Explicit locations: add UI features for CLI This patch exposes explicit locations to the CLI user. This enables users to "explicitly" specify attributes of the breakpoint location to avoid any ambiguity that might otherwise exist with linespecs. The general syntax of explicit locations is: -source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME -label LABEL_NAME Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users may use the completer with either options or values. gdb/ChangeLog: * completer.c: Include location.h. (enum match_type): New enum. (location_completer): Rename to ... (linespec_completer): ... this. (collect_explicit_location_matches, backup_text_ptr) (explicit_location_completer): New functions. (location_completer): "New" function; handle linespec and explicit location completions. (complete_line_internal): Remove all location completer-specific handling. * linespec.c (linespec_lexer_lex_keyword, is_ada_operator) (find_toplevel_char): Export. (linespec_parse_line_offset): Export. Issue error if STRING is not numerical. (gdb_get_linespec_parser_quote_characters): New function. * linespec.h (linespec_parse_line_offset): Declare. (get_gdb_linespec_parser_quote_characters): Declare. (is_ada_operator): Declare. (find_toplevel_char): Declare. (linespec_lexer_lex_keyword): Declare. * location.c (explicit_to_event_location): New function. (explicit_location_lex_one): New function. (string_to_explicit_location): New function. (string_to_event_location): Handle explicit locations. * location.h (explicit_to_event_location): Declare. (string_to_explicit_location): Declare. gdb/testsuite/ChangeLog: * gdb.linespec/3explicit.c: New file. * gdb.linespec/cpexplicit.cc: New file. * gdb.linespec/cpexplicit.exp: New file. * gdb.linespec/explicit.c: New file. * gdb.linespec/explicit.exp: New file. * gdb.linespec/explicit2.c: New file. * gdb.linespec/ls-errs.exp: Add explicit location tests. * lib/gdb.exp (capture_command_output): Regexp-escape `command' before using in the matching pattern. Clarify that `prefix' is a regular expression.
2015-08-12 02:09:36 +02:00
}
else if (strncmp (opt.get (), "-label", len) == 0)
Rewrite/enhance explicit locations completer, parse left->right One of the most annoying (to me) things about GDB's completion is when you have overloads in your program, and you want to set a breakpoint in one of them: void function(int); // set breakpoint here. void function(long); (gdb) b -f func[TAB] (gdb) b -f function( # ok, gdb completed as much as possible. (gdb) b -f function([TAB] # show me the overloads, please. <_all_ symbols in the program are shown...> E.g., when debugging GDB, that'd be: (gdb) b -f function([TAB] (anonymous namespace)::get_global()::global pt_insn_get_offset@plt scm_new_port_table_entry asprintf pt_pkt_alloc_decoder scm_new_port_table_entry@plt asprintf@plt pt_pkt_alloc_decoder@plt scm_out_of_range bt_ctf_get_char_array pt_pkt_sync_forward scm_out_of_range@plt bt_ctf_get_char_array@plt pt_pkt_sync_forward@plt scm_putc bt_ctf_get_uint64 pwrite scm_putc@plt bt_ctf_get_uint64@plt pwrite@plt scm_reverse_x bt_ctf_iter_read_event PyErr_Restore scm_reverse_x@plt bt_ctf_iter_read_event@plt PyErr_Restore@plt scm_set_port_filename_x <snip...> Now that's a load of completely useless completions. The reason GDB offers those is that the completer relies on readline figuring out the completion word point in the input line based on the language's word break characters, which include "(". So readline tells the completer to complete on "", the string that is after '('. Likewise, if you type "function(i[TAB]" to try to complete to "int", you're out of luck. GDB shows you all the symbols in the program that start with "i"... This makes sense for the expression completer, as what you'd want to type is e.g., a global variable, say: (gdb) print function(i[TAB] but, it makes no sense when specifying a function name for a breakpoint location. To get around that limitation, users need to quote the function name, like: (gdb) b -f 'function([TAB] function(int) function(long) (gdb) b 'function(i[TAB] (gdb) b 'function(int)' # now completes correctly! Note that the quoting is only necessary for completion. Creating the breakpoint does not require the quoting: (gdb) b -f function(int) [RET] Breakpoint 1 at .... This patch removes this limitation. ( Actually, it's a necessary patch, though not sufficient. That'll start working correctly by the end of the series. With this patch, if try it, you'll see: (gdb) b -f function(i[TAB] (gdb) b -f function i.e., gdb strips everything after the "(". That's caused by some code in symtab.c that'll be eliminated further down the series. These patches are all unfortunately interrelated, which is also the reason new tests only appear much later in the series. But let's ignore that reality for the remainder of the description. ) So... this patch gets rid of the need for quoting. It does that by adding a way for a completer to control the exact completion word point that readline should start the completion request for, instead of letting readline try to figure it out using the current language's word break chars array, and often failing. In the case above, we want the completer to figure out that it's completing a function name that starts with "function(i". It now does. It took me a while to figure out a way to ask readline to "use this exact word point", and for a while I feared that it'd be impossible with current readline (and having to rely on master readline for core functionality is something I'd like to avoid very much). Eventually, after several different attempts, I came up with what is described in the comment above gdb_custom_word_point_brkchars in the patch. With this patch, the handle_brkchars phase of the explicit location completer advances the expected word point as it parses the input line left to right, until it figures out exactly what we're completing, instead of expecting readline to break the string using the word break characters, and then having the completer heuristically fix up a bad decision by parsing the input string backwards. This allows correctly knowning that we're completing a symbol name after -function, complete functions without quoting, etc. Later, we'll make use of this same mechanims to implement a proper linespec completer that avoids need for quoting too. gdb/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * ada-lang.c (ada_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * cli/cli-cmds.c (complete_command): Get the completion result out of the handle_brkchars tracker if used a custom word point. * completer.c: Include "linespec.h". (enum explicit_location_match_type) <MATCH_LINE>: New enumerator. (advance_to_expression_complete_word_point): New. (completion_tracker::completes_to_completion_word): New. (complete_files_symbols): Pass down complete_symbol_mode::EXPRESSION. (explicit_options, probe_options): New. (collect_explicit_location_matches): Complete on the explictit_loc->foo instead of word. Use linespec_complete_function. Handle MATCH_LINE. Handle offering keyword and options completions. (backup_text_ptr): Delete. (skip_keyword): New. (complete_explicit_location): Remove 'word' parameter. Add language, quoted_arg_start and quoted_arg_end parameters. Rewrite, parsing left to right. (location_completer): Rewrite. (location_completer_handle_brkchars): New function. (symbol_completer): Pass down complete_symbol_mode::EXPRESSION. (enum complete_line_internal_reason): Adjust comments. (completion_tracker::discard_completions): New. (completer_handle_brkchars_func_for_completer): Handle location_completer. (gdb_custom_word_point_brkchars) (gdb_org_rl_basic_quote_characters): New. (gdb_completion_word_break_characters_throw) (completion_find_completion_word): Handle trackers that use a custom word point. (completion_tracker::advance_custom_word_point_by): New. (completion_tracker::build_completion_result): Don't rely on readline appending the quote char. (gdb_rl_attempted_completion_function_throw): Handle trackers that use a custom word point. (gdb_rl_attempted_completion_function): Restore rl_basic_quote_characters. * completer.h (class completion_tracker): Extend intro comment. (completion_tracker::set_quote_char) (completion_tracker::quote_char) (completion_tracker::set_use_custom_word_point) (completion_tracker::use_custom_word_point) (completion_tracker::custom_word_point) (completion_tracker::set_custom_word_point) (completion_tracker::advance_custom_word_point_by) (completion_tracker::completes_to_completion_word) (completion_tracker::discard_completions): New methods. (completion_tracker::m_quote_char) (completion_tracker::m_use_custom_word_point) (completion_tracker::m_custom_word_point): New fields. (advance_to_expression_complete_word_point): Declare. * f-lang.c (f_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * language.h (struct language_defn) <la_collect_symbol_completion_matches>: Add complete_symbol_mode parameter. * linespec.c (linespec_keywords): Add NULL terminator. Make extern. (linespec_complete_function): New function. (linespec_lexer_lex_keyword): Adjust. * linespec.h (linespec_keywords, linespec_complete_function): New declarations. * location.c (find_end_quote): New function. (explicit_location_lex_one): Add explicit_completion_info parameter. Save quoting info. Don't throw if being called for completion. Don't handle Ada operators here. (is_cp_operator, skip_op_false_positives, first_of) (explicit_location_lex_one_function): New function. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. Handle it. Don't use explicit_location_lex_one to lex function names. Use explicit_location_lex_one_function instead. * location.h (struct explicit_completion_info): New. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. * symtab.c (default_collect_symbol_completion_matches_break_on): Add complete_symbol_mode parameter. Handle LINESPEC mode. (default_collect_symbol_completion_matches) (collect_symbol_completion_matches): Add complete_symbol_mode parameter. (collect_symbol_completion_matches_type): Pass down complete_symbol_mode::EXPRESSION. (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. Handle LINESPEC mode. * symtab.h (complete_symbol_mode): New. (default_collect_symbol_completion_matches_break_on) (default_collect_symbol_completion_matches) (collect_symbol_completion_matches) (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. gdb/testsuite/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * gdb.linespec/ls-errs.exp (do_test): Adjust expected output.
2017-07-17 21:21:33 +02:00
{
set_oarg (explicit_location_lex_one (argp, language, completion_info));
EL_EXPLICIT (location)->label_name = oarg.release ();
}
Explicit locations: add UI features for CLI This patch exposes explicit locations to the CLI user. This enables users to "explicitly" specify attributes of the breakpoint location to avoid any ambiguity that might otherwise exist with linespecs. The general syntax of explicit locations is: -source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME -label LABEL_NAME Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users may use the completer with either options or values. gdb/ChangeLog: * completer.c: Include location.h. (enum match_type): New enum. (location_completer): Rename to ... (linespec_completer): ... this. (collect_explicit_location_matches, backup_text_ptr) (explicit_location_completer): New functions. (location_completer): "New" function; handle linespec and explicit location completions. (complete_line_internal): Remove all location completer-specific handling. * linespec.c (linespec_lexer_lex_keyword, is_ada_operator) (find_toplevel_char): Export. (linespec_parse_line_offset): Export. Issue error if STRING is not numerical. (gdb_get_linespec_parser_quote_characters): New function. * linespec.h (linespec_parse_line_offset): Declare. (get_gdb_linespec_parser_quote_characters): Declare. (is_ada_operator): Declare. (find_toplevel_char): Declare. (linespec_lexer_lex_keyword): Declare. * location.c (explicit_to_event_location): New function. (explicit_location_lex_one): New function. (string_to_explicit_location): New function. (string_to_event_location): Handle explicit locations. * location.h (explicit_to_event_location): Declare. (string_to_explicit_location): Declare. gdb/testsuite/ChangeLog: * gdb.linespec/3explicit.c: New file. * gdb.linespec/cpexplicit.cc: New file. * gdb.linespec/cpexplicit.exp: New file. * gdb.linespec/explicit.c: New file. * gdb.linespec/explicit.exp: New file. * gdb.linespec/explicit2.c: New file. * gdb.linespec/ls-errs.exp: Add explicit location tests. * lib/gdb.exp (capture_command_output): Regexp-escape `command' before using in the matching pattern. Clarify that `prefix' is a regular expression.
2015-08-12 02:09:36 +02:00
/* Only emit an "invalid argument" error for options
that look like option strings. */
else if (opt.get ()[0] == '-' && !isdigit (opt.get ()[1]))
Explicit locations: add UI features for CLI This patch exposes explicit locations to the CLI user. This enables users to "explicitly" specify attributes of the breakpoint location to avoid any ambiguity that might otherwise exist with linespecs. The general syntax of explicit locations is: -source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME -label LABEL_NAME Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users may use the completer with either options or values. gdb/ChangeLog: * completer.c: Include location.h. (enum match_type): New enum. (location_completer): Rename to ... (linespec_completer): ... this. (collect_explicit_location_matches, backup_text_ptr) (explicit_location_completer): New functions. (location_completer): "New" function; handle linespec and explicit location completions. (complete_line_internal): Remove all location completer-specific handling. * linespec.c (linespec_lexer_lex_keyword, is_ada_operator) (find_toplevel_char): Export. (linespec_parse_line_offset): Export. Issue error if STRING is not numerical. (gdb_get_linespec_parser_quote_characters): New function. * linespec.h (linespec_parse_line_offset): Declare. (get_gdb_linespec_parser_quote_characters): Declare. (is_ada_operator): Declare. (find_toplevel_char): Declare. (linespec_lexer_lex_keyword): Declare. * location.c (explicit_to_event_location): New function. (explicit_location_lex_one): New function. (string_to_explicit_location): New function. (string_to_event_location): Handle explicit locations. * location.h (explicit_to_event_location): Declare. (string_to_explicit_location): Declare. gdb/testsuite/ChangeLog: * gdb.linespec/3explicit.c: New file. * gdb.linespec/cpexplicit.cc: New file. * gdb.linespec/cpexplicit.exp: New file. * gdb.linespec/explicit.c: New file. * gdb.linespec/explicit.exp: New file. * gdb.linespec/explicit2.c: New file. * gdb.linespec/ls-errs.exp: Add explicit location tests. * lib/gdb.exp (capture_command_output): Regexp-escape `command' before using in the matching pattern. Clarify that `prefix' is a regular expression.
2015-08-12 02:09:36 +02:00
{
Rewrite/enhance explicit locations completer, parse left->right One of the most annoying (to me) things about GDB's completion is when you have overloads in your program, and you want to set a breakpoint in one of them: void function(int); // set breakpoint here. void function(long); (gdb) b -f func[TAB] (gdb) b -f function( # ok, gdb completed as much as possible. (gdb) b -f function([TAB] # show me the overloads, please. <_all_ symbols in the program are shown...> E.g., when debugging GDB, that'd be: (gdb) b -f function([TAB] (anonymous namespace)::get_global()::global pt_insn_get_offset@plt scm_new_port_table_entry asprintf pt_pkt_alloc_decoder scm_new_port_table_entry@plt asprintf@plt pt_pkt_alloc_decoder@plt scm_out_of_range bt_ctf_get_char_array pt_pkt_sync_forward scm_out_of_range@plt bt_ctf_get_char_array@plt pt_pkt_sync_forward@plt scm_putc bt_ctf_get_uint64 pwrite scm_putc@plt bt_ctf_get_uint64@plt pwrite@plt scm_reverse_x bt_ctf_iter_read_event PyErr_Restore scm_reverse_x@plt bt_ctf_iter_read_event@plt PyErr_Restore@plt scm_set_port_filename_x <snip...> Now that's a load of completely useless completions. The reason GDB offers those is that the completer relies on readline figuring out the completion word point in the input line based on the language's word break characters, which include "(". So readline tells the completer to complete on "", the string that is after '('. Likewise, if you type "function(i[TAB]" to try to complete to "int", you're out of luck. GDB shows you all the symbols in the program that start with "i"... This makes sense for the expression completer, as what you'd want to type is e.g., a global variable, say: (gdb) print function(i[TAB] but, it makes no sense when specifying a function name for a breakpoint location. To get around that limitation, users need to quote the function name, like: (gdb) b -f 'function([TAB] function(int) function(long) (gdb) b 'function(i[TAB] (gdb) b 'function(int)' # now completes correctly! Note that the quoting is only necessary for completion. Creating the breakpoint does not require the quoting: (gdb) b -f function(int) [RET] Breakpoint 1 at .... This patch removes this limitation. ( Actually, it's a necessary patch, though not sufficient. That'll start working correctly by the end of the series. With this patch, if try it, you'll see: (gdb) b -f function(i[TAB] (gdb) b -f function i.e., gdb strips everything after the "(". That's caused by some code in symtab.c that'll be eliminated further down the series. These patches are all unfortunately interrelated, which is also the reason new tests only appear much later in the series. But let's ignore that reality for the remainder of the description. ) So... this patch gets rid of the need for quoting. It does that by adding a way for a completer to control the exact completion word point that readline should start the completion request for, instead of letting readline try to figure it out using the current language's word break chars array, and often failing. In the case above, we want the completer to figure out that it's completing a function name that starts with "function(i". It now does. It took me a while to figure out a way to ask readline to "use this exact word point", and for a while I feared that it'd be impossible with current readline (and having to rely on master readline for core functionality is something I'd like to avoid very much). Eventually, after several different attempts, I came up with what is described in the comment above gdb_custom_word_point_brkchars in the patch. With this patch, the handle_brkchars phase of the explicit location completer advances the expected word point as it parses the input line left to right, until it figures out exactly what we're completing, instead of expecting readline to break the string using the word break characters, and then having the completer heuristically fix up a bad decision by parsing the input string backwards. This allows correctly knowning that we're completing a symbol name after -function, complete functions without quoting, etc. Later, we'll make use of this same mechanims to implement a proper linespec completer that avoids need for quoting too. gdb/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * ada-lang.c (ada_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * cli/cli-cmds.c (complete_command): Get the completion result out of the handle_brkchars tracker if used a custom word point. * completer.c: Include "linespec.h". (enum explicit_location_match_type) <MATCH_LINE>: New enumerator. (advance_to_expression_complete_word_point): New. (completion_tracker::completes_to_completion_word): New. (complete_files_symbols): Pass down complete_symbol_mode::EXPRESSION. (explicit_options, probe_options): New. (collect_explicit_location_matches): Complete on the explictit_loc->foo instead of word. Use linespec_complete_function. Handle MATCH_LINE. Handle offering keyword and options completions. (backup_text_ptr): Delete. (skip_keyword): New. (complete_explicit_location): Remove 'word' parameter. Add language, quoted_arg_start and quoted_arg_end parameters. Rewrite, parsing left to right. (location_completer): Rewrite. (location_completer_handle_brkchars): New function. (symbol_completer): Pass down complete_symbol_mode::EXPRESSION. (enum complete_line_internal_reason): Adjust comments. (completion_tracker::discard_completions): New. (completer_handle_brkchars_func_for_completer): Handle location_completer. (gdb_custom_word_point_brkchars) (gdb_org_rl_basic_quote_characters): New. (gdb_completion_word_break_characters_throw) (completion_find_completion_word): Handle trackers that use a custom word point. (completion_tracker::advance_custom_word_point_by): New. (completion_tracker::build_completion_result): Don't rely on readline appending the quote char. (gdb_rl_attempted_completion_function_throw): Handle trackers that use a custom word point. (gdb_rl_attempted_completion_function): Restore rl_basic_quote_characters. * completer.h (class completion_tracker): Extend intro comment. (completion_tracker::set_quote_char) (completion_tracker::quote_char) (completion_tracker::set_use_custom_word_point) (completion_tracker::use_custom_word_point) (completion_tracker::custom_word_point) (completion_tracker::set_custom_word_point) (completion_tracker::advance_custom_word_point_by) (completion_tracker::completes_to_completion_word) (completion_tracker::discard_completions): New methods. (completion_tracker::m_quote_char) (completion_tracker::m_use_custom_word_point) (completion_tracker::m_custom_word_point): New fields. (advance_to_expression_complete_word_point): Declare. * f-lang.c (f_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * language.h (struct language_defn) <la_collect_symbol_completion_matches>: Add complete_symbol_mode parameter. * linespec.c (linespec_keywords): Add NULL terminator. Make extern. (linespec_complete_function): New function. (linespec_lexer_lex_keyword): Adjust. * linespec.h (linespec_keywords, linespec_complete_function): New declarations. * location.c (find_end_quote): New function. (explicit_location_lex_one): Add explicit_completion_info parameter. Save quoting info. Don't throw if being called for completion. Don't handle Ada operators here. (is_cp_operator, skip_op_false_positives, first_of) (explicit_location_lex_one_function): New function. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. Handle it. Don't use explicit_location_lex_one to lex function names. Use explicit_location_lex_one_function instead. * location.h (struct explicit_completion_info): New. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. * symtab.c (default_collect_symbol_completion_matches_break_on): Add complete_symbol_mode parameter. Handle LINESPEC mode. (default_collect_symbol_completion_matches) (collect_symbol_completion_matches): Add complete_symbol_mode parameter. (collect_symbol_completion_matches_type): Pass down complete_symbol_mode::EXPRESSION. (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. Handle LINESPEC mode. * symtab.h (complete_symbol_mode): New. (default_collect_symbol_completion_matches_break_on) (default_collect_symbol_completion_matches) (collect_symbol_completion_matches) (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. gdb/testsuite/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * gdb.linespec/ls-errs.exp (do_test): Adjust expected output.
2017-07-17 21:21:33 +02:00
if (completion_info == NULL)
error (_("invalid explicit location argument, \"%s\""), opt.get ());
Explicit locations: add UI features for CLI This patch exposes explicit locations to the CLI user. This enables users to "explicitly" specify attributes of the breakpoint location to avoid any ambiguity that might otherwise exist with linespecs. The general syntax of explicit locations is: -source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME -label LABEL_NAME Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users may use the completer with either options or values. gdb/ChangeLog: * completer.c: Include location.h. (enum match_type): New enum. (location_completer): Rename to ... (linespec_completer): ... this. (collect_explicit_location_matches, backup_text_ptr) (explicit_location_completer): New functions. (location_completer): "New" function; handle linespec and explicit location completions. (complete_line_internal): Remove all location completer-specific handling. * linespec.c (linespec_lexer_lex_keyword, is_ada_operator) (find_toplevel_char): Export. (linespec_parse_line_offset): Export. Issue error if STRING is not numerical. (gdb_get_linespec_parser_quote_characters): New function. * linespec.h (linespec_parse_line_offset): Declare. (get_gdb_linespec_parser_quote_characters): Declare. (is_ada_operator): Declare. (find_toplevel_char): Declare. (linespec_lexer_lex_keyword): Declare. * location.c (explicit_to_event_location): New function. (explicit_location_lex_one): New function. (string_to_explicit_location): New function. (string_to_event_location): Handle explicit locations. * location.h (explicit_to_event_location): Declare. (string_to_explicit_location): Declare. gdb/testsuite/ChangeLog: * gdb.linespec/3explicit.c: New file. * gdb.linespec/cpexplicit.cc: New file. * gdb.linespec/cpexplicit.exp: New file. * gdb.linespec/explicit.c: New file. * gdb.linespec/explicit.exp: New file. * gdb.linespec/explicit2.c: New file. * gdb.linespec/ls-errs.exp: Add explicit location tests. * lib/gdb.exp (capture_command_output): Regexp-escape `command' before using in the matching pattern. Clarify that `prefix' is a regular expression.
2015-08-12 02:09:36 +02:00
}
else
{
/* End of the explicit location specification.
Stop parsing and return whatever explicit location was
parsed. */
*argp = start;
return location;
}
Rename _const functions to use overloading instead This renames a few functions -- skip_spaces_const, skip_to_space_const, get_number_const, extract_arg_const -- to drop the "_const" suffix and instead rely on overloading. This makes future const fixes simpler by reducing the number of lines that must be changed. I think it is also not any less clear, as all these functions have the same interface as their non-const versions by design. Furthermore there's an example of using an overload in-tree already, namely check_for_argument. This patch was largely created using some perl one-liners; then a few fixes were applied by hand. ChangeLog 2017-09-11 Tom Tromey <tom@tromey.com> * common/common-utils.h (skip_to_space): Remove macro, redeclare as function. (skip_to_space): Rename from skip_to_space_const. * common/common-utils.c (skip_to_space): New function. (skip_to_space): Rename from skip_to_space_const. * cli/cli-utils.h (get_number): Rename from get_number_const. (extract_arg): Rename from extract_arg_const. * cli/cli-utils.c (get_number): Rename from get_number_const. (extract_arg): Rename from extract_arg_const. (number_or_range_parser::get_number): Use ::get_number. * aarch64-linux-tdep.c, ada-lang.c, arm-linux-tdep.c, ax-gdb.c, break-catch-throw.c, breakpoint.c, cli/cli-cmds.c, cli/cli-dump.c, cli/cli-script.c, cli/cli-setshow.c, compile/compile.c, completer.c, demangle.c, disasm.c, findcmd.c, linespec.c, linux-tdep.c, linux-thread-db.c, location.c, mi/mi-parse.c, minsyms.c, nat/linux-procfs.c, printcmd.c, probe.c, python/py-breakpoint.c, record.c, rust-exp.y, serial.c, stack.c, stap-probe.c, tid-parse.c, tracepoint.c: Update all callers.
2017-09-10 22:19:19 +02:00
*argp = skip_spaces (*argp);
Rewrite/enhance explicit locations completer, parse left->right One of the most annoying (to me) things about GDB's completion is when you have overloads in your program, and you want to set a breakpoint in one of them: void function(int); // set breakpoint here. void function(long); (gdb) b -f func[TAB] (gdb) b -f function( # ok, gdb completed as much as possible. (gdb) b -f function([TAB] # show me the overloads, please. <_all_ symbols in the program are shown...> E.g., when debugging GDB, that'd be: (gdb) b -f function([TAB] (anonymous namespace)::get_global()::global pt_insn_get_offset@plt scm_new_port_table_entry asprintf pt_pkt_alloc_decoder scm_new_port_table_entry@plt asprintf@plt pt_pkt_alloc_decoder@plt scm_out_of_range bt_ctf_get_char_array pt_pkt_sync_forward scm_out_of_range@plt bt_ctf_get_char_array@plt pt_pkt_sync_forward@plt scm_putc bt_ctf_get_uint64 pwrite scm_putc@plt bt_ctf_get_uint64@plt pwrite@plt scm_reverse_x bt_ctf_iter_read_event PyErr_Restore scm_reverse_x@plt bt_ctf_iter_read_event@plt PyErr_Restore@plt scm_set_port_filename_x <snip...> Now that's a load of completely useless completions. The reason GDB offers those is that the completer relies on readline figuring out the completion word point in the input line based on the language's word break characters, which include "(". So readline tells the completer to complete on "", the string that is after '('. Likewise, if you type "function(i[TAB]" to try to complete to "int", you're out of luck. GDB shows you all the symbols in the program that start with "i"... This makes sense for the expression completer, as what you'd want to type is e.g., a global variable, say: (gdb) print function(i[TAB] but, it makes no sense when specifying a function name for a breakpoint location. To get around that limitation, users need to quote the function name, like: (gdb) b -f 'function([TAB] function(int) function(long) (gdb) b 'function(i[TAB] (gdb) b 'function(int)' # now completes correctly! Note that the quoting is only necessary for completion. Creating the breakpoint does not require the quoting: (gdb) b -f function(int) [RET] Breakpoint 1 at .... This patch removes this limitation. ( Actually, it's a necessary patch, though not sufficient. That'll start working correctly by the end of the series. With this patch, if try it, you'll see: (gdb) b -f function(i[TAB] (gdb) b -f function i.e., gdb strips everything after the "(". That's caused by some code in symtab.c that'll be eliminated further down the series. These patches are all unfortunately interrelated, which is also the reason new tests only appear much later in the series. But let's ignore that reality for the remainder of the description. ) So... this patch gets rid of the need for quoting. It does that by adding a way for a completer to control the exact completion word point that readline should start the completion request for, instead of letting readline try to figure it out using the current language's word break chars array, and often failing. In the case above, we want the completer to figure out that it's completing a function name that starts with "function(i". It now does. It took me a while to figure out a way to ask readline to "use this exact word point", and for a while I feared that it'd be impossible with current readline (and having to rely on master readline for core functionality is something I'd like to avoid very much). Eventually, after several different attempts, I came up with what is described in the comment above gdb_custom_word_point_brkchars in the patch. With this patch, the handle_brkchars phase of the explicit location completer advances the expected word point as it parses the input line left to right, until it figures out exactly what we're completing, instead of expecting readline to break the string using the word break characters, and then having the completer heuristically fix up a bad decision by parsing the input string backwards. This allows correctly knowning that we're completing a symbol name after -function, complete functions without quoting, etc. Later, we'll make use of this same mechanims to implement a proper linespec completer that avoids need for quoting too. gdb/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * ada-lang.c (ada_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * cli/cli-cmds.c (complete_command): Get the completion result out of the handle_brkchars tracker if used a custom word point. * completer.c: Include "linespec.h". (enum explicit_location_match_type) <MATCH_LINE>: New enumerator. (advance_to_expression_complete_word_point): New. (completion_tracker::completes_to_completion_word): New. (complete_files_symbols): Pass down complete_symbol_mode::EXPRESSION. (explicit_options, probe_options): New. (collect_explicit_location_matches): Complete on the explictit_loc->foo instead of word. Use linespec_complete_function. Handle MATCH_LINE. Handle offering keyword and options completions. (backup_text_ptr): Delete. (skip_keyword): New. (complete_explicit_location): Remove 'word' parameter. Add language, quoted_arg_start and quoted_arg_end parameters. Rewrite, parsing left to right. (location_completer): Rewrite. (location_completer_handle_brkchars): New function. (symbol_completer): Pass down complete_symbol_mode::EXPRESSION. (enum complete_line_internal_reason): Adjust comments. (completion_tracker::discard_completions): New. (completer_handle_brkchars_func_for_completer): Handle location_completer. (gdb_custom_word_point_brkchars) (gdb_org_rl_basic_quote_characters): New. (gdb_completion_word_break_characters_throw) (completion_find_completion_word): Handle trackers that use a custom word point. (completion_tracker::advance_custom_word_point_by): New. (completion_tracker::build_completion_result): Don't rely on readline appending the quote char. (gdb_rl_attempted_completion_function_throw): Handle trackers that use a custom word point. (gdb_rl_attempted_completion_function): Restore rl_basic_quote_characters. * completer.h (class completion_tracker): Extend intro comment. (completion_tracker::set_quote_char) (completion_tracker::quote_char) (completion_tracker::set_use_custom_word_point) (completion_tracker::use_custom_word_point) (completion_tracker::custom_word_point) (completion_tracker::set_custom_word_point) (completion_tracker::advance_custom_word_point_by) (completion_tracker::completes_to_completion_word) (completion_tracker::discard_completions): New methods. (completion_tracker::m_quote_char) (completion_tracker::m_use_custom_word_point) (completion_tracker::m_custom_word_point): New fields. (advance_to_expression_complete_word_point): Declare. * f-lang.c (f_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * language.h (struct language_defn) <la_collect_symbol_completion_matches>: Add complete_symbol_mode parameter. * linespec.c (linespec_keywords): Add NULL terminator. Make extern. (linespec_complete_function): New function. (linespec_lexer_lex_keyword): Adjust. * linespec.h (linespec_keywords, linespec_complete_function): New declarations. * location.c (find_end_quote): New function. (explicit_location_lex_one): Add explicit_completion_info parameter. Save quoting info. Don't throw if being called for completion. Don't handle Ada operators here. (is_cp_operator, skip_op_false_positives, first_of) (explicit_location_lex_one_function): New function. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. Handle it. Don't use explicit_location_lex_one to lex function names. Use explicit_location_lex_one_function instead. * location.h (struct explicit_completion_info): New. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. * symtab.c (default_collect_symbol_completion_matches_break_on): Add complete_symbol_mode parameter. Handle LINESPEC mode. (default_collect_symbol_completion_matches) (collect_symbol_completion_matches): Add complete_symbol_mode parameter. (collect_symbol_completion_matches_type): Pass down complete_symbol_mode::EXPRESSION. (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. Handle LINESPEC mode. * symtab.h (complete_symbol_mode): New. (default_collect_symbol_completion_matches_break_on) (default_collect_symbol_completion_matches) (collect_symbol_completion_matches) (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. gdb/testsuite/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * gdb.linespec/ls-errs.exp (do_test): Adjust expected output.
2017-07-17 21:21:33 +02:00
Explicit locations: add UI features for CLI This patch exposes explicit locations to the CLI user. This enables users to "explicitly" specify attributes of the breakpoint location to avoid any ambiguity that might otherwise exist with linespecs. The general syntax of explicit locations is: -source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME -label LABEL_NAME Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users may use the completer with either options or values. gdb/ChangeLog: * completer.c: Include location.h. (enum match_type): New enum. (location_completer): Rename to ... (linespec_completer): ... this. (collect_explicit_location_matches, backup_text_ptr) (explicit_location_completer): New functions. (location_completer): "New" function; handle linespec and explicit location completions. (complete_line_internal): Remove all location completer-specific handling. * linespec.c (linespec_lexer_lex_keyword, is_ada_operator) (find_toplevel_char): Export. (linespec_parse_line_offset): Export. Issue error if STRING is not numerical. (gdb_get_linespec_parser_quote_characters): New function. * linespec.h (linespec_parse_line_offset): Declare. (get_gdb_linespec_parser_quote_characters): Declare. (is_ada_operator): Declare. (find_toplevel_char): Declare. (linespec_lexer_lex_keyword): Declare. * location.c (explicit_to_event_location): New function. (explicit_location_lex_one): New function. (string_to_explicit_location): New function. (string_to_event_location): Handle explicit locations. * location.h (explicit_to_event_location): Declare. (string_to_explicit_location): Declare. gdb/testsuite/ChangeLog: * gdb.linespec/3explicit.c: New file. * gdb.linespec/cpexplicit.cc: New file. * gdb.linespec/cpexplicit.exp: New file. * gdb.linespec/explicit.c: New file. * gdb.linespec/explicit.exp: New file. * gdb.linespec/explicit2.c: New file. * gdb.linespec/ls-errs.exp: Add explicit location tests. * lib/gdb.exp (capture_command_output): Regexp-escape `command' before using in the matching pattern. Clarify that `prefix' is a regular expression.
2015-08-12 02:09:36 +02:00
/* It's a little lame to error after the fact, but in this
case, it provides a much better user experience to issue
the "invalid argument" error before any missing
argument error. */
Rewrite/enhance explicit locations completer, parse left->right One of the most annoying (to me) things about GDB's completion is when you have overloads in your program, and you want to set a breakpoint in one of them: void function(int); // set breakpoint here. void function(long); (gdb) b -f func[TAB] (gdb) b -f function( # ok, gdb completed as much as possible. (gdb) b -f function([TAB] # show me the overloads, please. <_all_ symbols in the program are shown...> E.g., when debugging GDB, that'd be: (gdb) b -f function([TAB] (anonymous namespace)::get_global()::global pt_insn_get_offset@plt scm_new_port_table_entry asprintf pt_pkt_alloc_decoder scm_new_port_table_entry@plt asprintf@plt pt_pkt_alloc_decoder@plt scm_out_of_range bt_ctf_get_char_array pt_pkt_sync_forward scm_out_of_range@plt bt_ctf_get_char_array@plt pt_pkt_sync_forward@plt scm_putc bt_ctf_get_uint64 pwrite scm_putc@plt bt_ctf_get_uint64@plt pwrite@plt scm_reverse_x bt_ctf_iter_read_event PyErr_Restore scm_reverse_x@plt bt_ctf_iter_read_event@plt PyErr_Restore@plt scm_set_port_filename_x <snip...> Now that's a load of completely useless completions. The reason GDB offers those is that the completer relies on readline figuring out the completion word point in the input line based on the language's word break characters, which include "(". So readline tells the completer to complete on "", the string that is after '('. Likewise, if you type "function(i[TAB]" to try to complete to "int", you're out of luck. GDB shows you all the symbols in the program that start with "i"... This makes sense for the expression completer, as what you'd want to type is e.g., a global variable, say: (gdb) print function(i[TAB] but, it makes no sense when specifying a function name for a breakpoint location. To get around that limitation, users need to quote the function name, like: (gdb) b -f 'function([TAB] function(int) function(long) (gdb) b 'function(i[TAB] (gdb) b 'function(int)' # now completes correctly! Note that the quoting is only necessary for completion. Creating the breakpoint does not require the quoting: (gdb) b -f function(int) [RET] Breakpoint 1 at .... This patch removes this limitation. ( Actually, it's a necessary patch, though not sufficient. That'll start working correctly by the end of the series. With this patch, if try it, you'll see: (gdb) b -f function(i[TAB] (gdb) b -f function i.e., gdb strips everything after the "(". That's caused by some code in symtab.c that'll be eliminated further down the series. These patches are all unfortunately interrelated, which is also the reason new tests only appear much later in the series. But let's ignore that reality for the remainder of the description. ) So... this patch gets rid of the need for quoting. It does that by adding a way for a completer to control the exact completion word point that readline should start the completion request for, instead of letting readline try to figure it out using the current language's word break chars array, and often failing. In the case above, we want the completer to figure out that it's completing a function name that starts with "function(i". It now does. It took me a while to figure out a way to ask readline to "use this exact word point", and for a while I feared that it'd be impossible with current readline (and having to rely on master readline for core functionality is something I'd like to avoid very much). Eventually, after several different attempts, I came up with what is described in the comment above gdb_custom_word_point_brkchars in the patch. With this patch, the handle_brkchars phase of the explicit location completer advances the expected word point as it parses the input line left to right, until it figures out exactly what we're completing, instead of expecting readline to break the string using the word break characters, and then having the completer heuristically fix up a bad decision by parsing the input string backwards. This allows correctly knowning that we're completing a symbol name after -function, complete functions without quoting, etc. Later, we'll make use of this same mechanims to implement a proper linespec completer that avoids need for quoting too. gdb/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * ada-lang.c (ada_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * cli/cli-cmds.c (complete_command): Get the completion result out of the handle_brkchars tracker if used a custom word point. * completer.c: Include "linespec.h". (enum explicit_location_match_type) <MATCH_LINE>: New enumerator. (advance_to_expression_complete_word_point): New. (completion_tracker::completes_to_completion_word): New. (complete_files_symbols): Pass down complete_symbol_mode::EXPRESSION. (explicit_options, probe_options): New. (collect_explicit_location_matches): Complete on the explictit_loc->foo instead of word. Use linespec_complete_function. Handle MATCH_LINE. Handle offering keyword and options completions. (backup_text_ptr): Delete. (skip_keyword): New. (complete_explicit_location): Remove 'word' parameter. Add language, quoted_arg_start and quoted_arg_end parameters. Rewrite, parsing left to right. (location_completer): Rewrite. (location_completer_handle_brkchars): New function. (symbol_completer): Pass down complete_symbol_mode::EXPRESSION. (enum complete_line_internal_reason): Adjust comments. (completion_tracker::discard_completions): New. (completer_handle_brkchars_func_for_completer): Handle location_completer. (gdb_custom_word_point_brkchars) (gdb_org_rl_basic_quote_characters): New. (gdb_completion_word_break_characters_throw) (completion_find_completion_word): Handle trackers that use a custom word point. (completion_tracker::advance_custom_word_point_by): New. (completion_tracker::build_completion_result): Don't rely on readline appending the quote char. (gdb_rl_attempted_completion_function_throw): Handle trackers that use a custom word point. (gdb_rl_attempted_completion_function): Restore rl_basic_quote_characters. * completer.h (class completion_tracker): Extend intro comment. (completion_tracker::set_quote_char) (completion_tracker::quote_char) (completion_tracker::set_use_custom_word_point) (completion_tracker::use_custom_word_point) (completion_tracker::custom_word_point) (completion_tracker::set_custom_word_point) (completion_tracker::advance_custom_word_point_by) (completion_tracker::completes_to_completion_word) (completion_tracker::discard_completions): New methods. (completion_tracker::m_quote_char) (completion_tracker::m_use_custom_word_point) (completion_tracker::m_custom_word_point): New fields. (advance_to_expression_complete_word_point): Declare. * f-lang.c (f_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * language.h (struct language_defn) <la_collect_symbol_completion_matches>: Add complete_symbol_mode parameter. * linespec.c (linespec_keywords): Add NULL terminator. Make extern. (linespec_complete_function): New function. (linespec_lexer_lex_keyword): Adjust. * linespec.h (linespec_keywords, linespec_complete_function): New declarations. * location.c (find_end_quote): New function. (explicit_location_lex_one): Add explicit_completion_info parameter. Save quoting info. Don't throw if being called for completion. Don't handle Ada operators here. (is_cp_operator, skip_op_false_positives, first_of) (explicit_location_lex_one_function): New function. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. Handle it. Don't use explicit_location_lex_one to lex function names. Use explicit_location_lex_one_function instead. * location.h (struct explicit_completion_info): New. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. * symtab.c (default_collect_symbol_completion_matches_break_on): Add complete_symbol_mode parameter. Handle LINESPEC mode. (default_collect_symbol_completion_matches) (collect_symbol_completion_matches): Add complete_symbol_mode parameter. (collect_symbol_completion_matches_type): Pass down complete_symbol_mode::EXPRESSION. (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. Handle LINESPEC mode. * symtab.h (complete_symbol_mode): New. (default_collect_symbol_completion_matches_break_on) (default_collect_symbol_completion_matches) (collect_symbol_completion_matches) (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. gdb/testsuite/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * gdb.linespec/ls-errs.exp (do_test): Adjust expected output.
2017-07-17 21:21:33 +02:00
if (!have_oarg && completion_info == NULL)
error (_("missing argument for \"%s\""), opt.get ());
Explicit locations: add UI features for CLI This patch exposes explicit locations to the CLI user. This enables users to "explicitly" specify attributes of the breakpoint location to avoid any ambiguity that might otherwise exist with linespecs. The general syntax of explicit locations is: -source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME -label LABEL_NAME Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users may use the completer with either options or values. gdb/ChangeLog: * completer.c: Include location.h. (enum match_type): New enum. (location_completer): Rename to ... (linespec_completer): ... this. (collect_explicit_location_matches, backup_text_ptr) (explicit_location_completer): New functions. (location_completer): "New" function; handle linespec and explicit location completions. (complete_line_internal): Remove all location completer-specific handling. * linespec.c (linespec_lexer_lex_keyword, is_ada_operator) (find_toplevel_char): Export. (linespec_parse_line_offset): Export. Issue error if STRING is not numerical. (gdb_get_linespec_parser_quote_characters): New function. * linespec.h (linespec_parse_line_offset): Declare. (get_gdb_linespec_parser_quote_characters): Declare. (is_ada_operator): Declare. (find_toplevel_char): Declare. (linespec_lexer_lex_keyword): Declare. * location.c (explicit_to_event_location): New function. (explicit_location_lex_one): New function. (string_to_explicit_location): New function. (string_to_event_location): Handle explicit locations. * location.h (explicit_to_event_location): Declare. (string_to_explicit_location): Declare. gdb/testsuite/ChangeLog: * gdb.linespec/3explicit.c: New file. * gdb.linespec/cpexplicit.cc: New file. * gdb.linespec/cpexplicit.exp: New file. * gdb.linespec/explicit.c: New file. * gdb.linespec/explicit.exp: New file. * gdb.linespec/explicit2.c: New file. * gdb.linespec/ls-errs.exp: Add explicit location tests. * lib/gdb.exp (capture_command_output): Regexp-escape `command' before using in the matching pattern. Clarify that `prefix' is a regular expression.
2015-08-12 02:09:36 +02:00
}
/* One special error check: If a source filename was given
without offset, function, or label, issue an error. */
if (EL_EXPLICIT (location)->source_filename != NULL
&& EL_EXPLICIT (location)->function_name == NULL
&& EL_EXPLICIT (location)->label_name == NULL
&& (EL_EXPLICIT (location)->line_offset.sign == LINE_OFFSET_UNKNOWN)
Rewrite/enhance explicit locations completer, parse left->right One of the most annoying (to me) things about GDB's completion is when you have overloads in your program, and you want to set a breakpoint in one of them: void function(int); // set breakpoint here. void function(long); (gdb) b -f func[TAB] (gdb) b -f function( # ok, gdb completed as much as possible. (gdb) b -f function([TAB] # show me the overloads, please. <_all_ symbols in the program are shown...> E.g., when debugging GDB, that'd be: (gdb) b -f function([TAB] (anonymous namespace)::get_global()::global pt_insn_get_offset@plt scm_new_port_table_entry asprintf pt_pkt_alloc_decoder scm_new_port_table_entry@plt asprintf@plt pt_pkt_alloc_decoder@plt scm_out_of_range bt_ctf_get_char_array pt_pkt_sync_forward scm_out_of_range@plt bt_ctf_get_char_array@plt pt_pkt_sync_forward@plt scm_putc bt_ctf_get_uint64 pwrite scm_putc@plt bt_ctf_get_uint64@plt pwrite@plt scm_reverse_x bt_ctf_iter_read_event PyErr_Restore scm_reverse_x@plt bt_ctf_iter_read_event@plt PyErr_Restore@plt scm_set_port_filename_x <snip...> Now that's a load of completely useless completions. The reason GDB offers those is that the completer relies on readline figuring out the completion word point in the input line based on the language's word break characters, which include "(". So readline tells the completer to complete on "", the string that is after '('. Likewise, if you type "function(i[TAB]" to try to complete to "int", you're out of luck. GDB shows you all the symbols in the program that start with "i"... This makes sense for the expression completer, as what you'd want to type is e.g., a global variable, say: (gdb) print function(i[TAB] but, it makes no sense when specifying a function name for a breakpoint location. To get around that limitation, users need to quote the function name, like: (gdb) b -f 'function([TAB] function(int) function(long) (gdb) b 'function(i[TAB] (gdb) b 'function(int)' # now completes correctly! Note that the quoting is only necessary for completion. Creating the breakpoint does not require the quoting: (gdb) b -f function(int) [RET] Breakpoint 1 at .... This patch removes this limitation. ( Actually, it's a necessary patch, though not sufficient. That'll start working correctly by the end of the series. With this patch, if try it, you'll see: (gdb) b -f function(i[TAB] (gdb) b -f function i.e., gdb strips everything after the "(". That's caused by some code in symtab.c that'll be eliminated further down the series. These patches are all unfortunately interrelated, which is also the reason new tests only appear much later in the series. But let's ignore that reality for the remainder of the description. ) So... this patch gets rid of the need for quoting. It does that by adding a way for a completer to control the exact completion word point that readline should start the completion request for, instead of letting readline try to figure it out using the current language's word break chars array, and often failing. In the case above, we want the completer to figure out that it's completing a function name that starts with "function(i". It now does. It took me a while to figure out a way to ask readline to "use this exact word point", and for a while I feared that it'd be impossible with current readline (and having to rely on master readline for core functionality is something I'd like to avoid very much). Eventually, after several different attempts, I came up with what is described in the comment above gdb_custom_word_point_brkchars in the patch. With this patch, the handle_brkchars phase of the explicit location completer advances the expected word point as it parses the input line left to right, until it figures out exactly what we're completing, instead of expecting readline to break the string using the word break characters, and then having the completer heuristically fix up a bad decision by parsing the input string backwards. This allows correctly knowning that we're completing a symbol name after -function, complete functions without quoting, etc. Later, we'll make use of this same mechanims to implement a proper linespec completer that avoids need for quoting too. gdb/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * ada-lang.c (ada_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * cli/cli-cmds.c (complete_command): Get the completion result out of the handle_brkchars tracker if used a custom word point. * completer.c: Include "linespec.h". (enum explicit_location_match_type) <MATCH_LINE>: New enumerator. (advance_to_expression_complete_word_point): New. (completion_tracker::completes_to_completion_word): New. (complete_files_symbols): Pass down complete_symbol_mode::EXPRESSION. (explicit_options, probe_options): New. (collect_explicit_location_matches): Complete on the explictit_loc->foo instead of word. Use linespec_complete_function. Handle MATCH_LINE. Handle offering keyword and options completions. (backup_text_ptr): Delete. (skip_keyword): New. (complete_explicit_location): Remove 'word' parameter. Add language, quoted_arg_start and quoted_arg_end parameters. Rewrite, parsing left to right. (location_completer): Rewrite. (location_completer_handle_brkchars): New function. (symbol_completer): Pass down complete_symbol_mode::EXPRESSION. (enum complete_line_internal_reason): Adjust comments. (completion_tracker::discard_completions): New. (completer_handle_brkchars_func_for_completer): Handle location_completer. (gdb_custom_word_point_brkchars) (gdb_org_rl_basic_quote_characters): New. (gdb_completion_word_break_characters_throw) (completion_find_completion_word): Handle trackers that use a custom word point. (completion_tracker::advance_custom_word_point_by): New. (completion_tracker::build_completion_result): Don't rely on readline appending the quote char. (gdb_rl_attempted_completion_function_throw): Handle trackers that use a custom word point. (gdb_rl_attempted_completion_function): Restore rl_basic_quote_characters. * completer.h (class completion_tracker): Extend intro comment. (completion_tracker::set_quote_char) (completion_tracker::quote_char) (completion_tracker::set_use_custom_word_point) (completion_tracker::use_custom_word_point) (completion_tracker::custom_word_point) (completion_tracker::set_custom_word_point) (completion_tracker::advance_custom_word_point_by) (completion_tracker::completes_to_completion_word) (completion_tracker::discard_completions): New methods. (completion_tracker::m_quote_char) (completion_tracker::m_use_custom_word_point) (completion_tracker::m_custom_word_point): New fields. (advance_to_expression_complete_word_point): Declare. * f-lang.c (f_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * language.h (struct language_defn) <la_collect_symbol_completion_matches>: Add complete_symbol_mode parameter. * linespec.c (linespec_keywords): Add NULL terminator. Make extern. (linespec_complete_function): New function. (linespec_lexer_lex_keyword): Adjust. * linespec.h (linespec_keywords, linespec_complete_function): New declarations. * location.c (find_end_quote): New function. (explicit_location_lex_one): Add explicit_completion_info parameter. Save quoting info. Don't throw if being called for completion. Don't handle Ada operators here. (is_cp_operator, skip_op_false_positives, first_of) (explicit_location_lex_one_function): New function. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. Handle it. Don't use explicit_location_lex_one to lex function names. Use explicit_location_lex_one_function instead. * location.h (struct explicit_completion_info): New. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. * symtab.c (default_collect_symbol_completion_matches_break_on): Add complete_symbol_mode parameter. Handle LINESPEC mode. (default_collect_symbol_completion_matches) (collect_symbol_completion_matches): Add complete_symbol_mode parameter. (collect_symbol_completion_matches_type): Pass down complete_symbol_mode::EXPRESSION. (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. Handle LINESPEC mode. * symtab.h (complete_symbol_mode): New. (default_collect_symbol_completion_matches_break_on) (default_collect_symbol_completion_matches) (collect_symbol_completion_matches) (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. gdb/testsuite/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * gdb.linespec/ls-errs.exp (do_test): Adjust expected output.
2017-07-17 21:21:33 +02:00
&& completion_info == NULL)
Explicit locations: add UI features for CLI This patch exposes explicit locations to the CLI user. This enables users to "explicitly" specify attributes of the breakpoint location to avoid any ambiguity that might otherwise exist with linespecs. The general syntax of explicit locations is: -source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME -label LABEL_NAME Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users may use the completer with either options or values. gdb/ChangeLog: * completer.c: Include location.h. (enum match_type): New enum. (location_completer): Rename to ... (linespec_completer): ... this. (collect_explicit_location_matches, backup_text_ptr) (explicit_location_completer): New functions. (location_completer): "New" function; handle linespec and explicit location completions. (complete_line_internal): Remove all location completer-specific handling. * linespec.c (linespec_lexer_lex_keyword, is_ada_operator) (find_toplevel_char): Export. (linespec_parse_line_offset): Export. Issue error if STRING is not numerical. (gdb_get_linespec_parser_quote_characters): New function. * linespec.h (linespec_parse_line_offset): Declare. (get_gdb_linespec_parser_quote_characters): Declare. (is_ada_operator): Declare. (find_toplevel_char): Declare. (linespec_lexer_lex_keyword): Declare. * location.c (explicit_to_event_location): New function. (explicit_location_lex_one): New function. (string_to_explicit_location): New function. (string_to_event_location): Handle explicit locations. * location.h (explicit_to_event_location): Declare. (string_to_explicit_location): Declare. gdb/testsuite/ChangeLog: * gdb.linespec/3explicit.c: New file. * gdb.linespec/cpexplicit.cc: New file. * gdb.linespec/cpexplicit.exp: New file. * gdb.linespec/explicit.c: New file. * gdb.linespec/explicit.exp: New file. * gdb.linespec/explicit2.c: New file. * gdb.linespec/ls-errs.exp: Add explicit location tests. * lib/gdb.exp (capture_command_output): Regexp-escape `command' before using in the matching pattern. Clarify that `prefix' is a regular expression.
2015-08-12 02:09:36 +02:00
{
error (_("Source filename requires function, label, or "
"line offset."));
}
return location;
}
/* See description in location.h. */
Introduce event_location_up This removes make_cleanup_delete_event_location and instead changes the various location functions to return an event_location_up, a new unique_ptr typedef. This is largely straightforward, but be sure to examine the init_breakpoint_sal change. I believe the code I deleted there is dead, because "location != NULL" can never be true in that branch; but you should double-check. gdb/ChangeLog 2017-04-12 Tom Tromey <tom@tromey.com> * tracepoint.c (scope_info): Update. * spu-tdep.c (spu_catch_start): Update. * python/python.c (gdbpy_decode_line): Update. * python/py-finishbreakpoint.c (bpfinishpy_init): Update. * python/py-breakpoint.c (bppy_init): Update. * probe.c (parse_probes): Update. * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Update. * location.h (event_location_deleter): New struct. (event_location_up): New typedef. (new_linespec_location, new_address_location, new_probe_location) (new_explicit_location, copy_event_location) (string_to_event_location, string_to_event_location_basic) (string_to_explicit_location): Update return type. (make_cleanup_delete_event_location): Remove. * location.c (new_linespec_location, new_address_location) (new_probe_location, new_explicit_location, copy_event_location): Return event_location_up. (delete_event_location_cleanup) (make_cleanup_delete_event_location): Remove. (string_to_explicit_location, string_to_event_location_basic) (string_to_event_location): Return event_location_up. * linespec.c (canonicalize_linespec, event_location_to_sals) (decode_line_with_current_source) (decode_line_with_last_displayed, decode_objc): Update. * guile/scm-breakpoint.c (gdbscm_register_breakpoint_x): Update. * completer.c (location_completer): Update. * cli/cli-cmds.c (edit_command, list_command): Update. * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint) (create_thread_event_breakpoint): Update. (init_breakpoint_sal): Update. Remove some dead code. (create_breakpoint_sal): Change type of "location". Update. (create_breakpoints_sal, create_breakpoint, break_command_1) (dprintf_command, break_range_command, until_break_command) (init_ada_exception_breakpoint) (strace_marker_create_sals_from_location) (update_static_tracepoint, trace_command, ftrace_command) (strace_command, create_tracepoint_from_upload): Update. * break-catch-throw.c (re_set_exception_catchpoint): Update. * ax-gdb.c (agent_command_1): Update.
2017-04-06 04:44:01 +02:00
event_location_up
Constify some linespec functions This changes a few linespec functions to work on "const char *" and then fixes up all the callers. This allows further constification elsewhere. gdb/ChangeLog 2017-09-27 Tom Tromey <tom@tromey.com> * tracepoint.c (info_scope_command): Constify. * python/python.c (gdbpy_decode_line): Constify. * python/py-breakpoint.c (bppy_init): Constify. * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Constify. * location.h: (new_linespec_location) (string_to_event_location_basic, string_to_event_location): Constify. * location.c (new_linespec_location) (string_to_event_location_basic, string_to_event_location): Constify. * linespec.h (decode_line_with_current_source) (decode_line_with_last_displayed, linespec_lex_to_end): Constify. * linespec.c (linespec_lex_to_end) (decode_line_with_current_source) (decode_line_with_last_displayed): Constify. * guile/scm-breakpoint.c (gdbscm_register_breakpoint_x): Constify. * cli/cli-cmds.c (edit_command, list_command): Constify. * breakpoint.h (until_break_command, watch_command_wrapper) (awatch_command_wrapper, rwatch_command_wrapper) (init_ada_exception_breakpoint): Constify. * breakpoint.c (break_command_1, dprintf_command) (break_range_command, watch_command_wrapper) (rwatch_command_wrapper, awatch_command_wrapper) (until_break_command, init_ada_exception_breakpoint) (strace_marker_create_sals_from_location, trace_command) (ftrace_command, strace_command, struct tracepoint): Constify. * ax-gdb.c (agent_command_1): Constify. * ada-lang.c (ada_exception_sal): Constify.
2017-09-13 02:32:41 +02:00
string_to_event_location_basic (const char **stringp,
const struct language_defn *language)
{
Introduce event_location_up This removes make_cleanup_delete_event_location and instead changes the various location functions to return an event_location_up, a new unique_ptr typedef. This is largely straightforward, but be sure to examine the init_breakpoint_sal change. I believe the code I deleted there is dead, because "location != NULL" can never be true in that branch; but you should double-check. gdb/ChangeLog 2017-04-12 Tom Tromey <tom@tromey.com> * tracepoint.c (scope_info): Update. * spu-tdep.c (spu_catch_start): Update. * python/python.c (gdbpy_decode_line): Update. * python/py-finishbreakpoint.c (bpfinishpy_init): Update. * python/py-breakpoint.c (bppy_init): Update. * probe.c (parse_probes): Update. * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Update. * location.h (event_location_deleter): New struct. (event_location_up): New typedef. (new_linespec_location, new_address_location, new_probe_location) (new_explicit_location, copy_event_location) (string_to_event_location, string_to_event_location_basic) (string_to_explicit_location): Update return type. (make_cleanup_delete_event_location): Remove. * location.c (new_linespec_location, new_address_location) (new_probe_location, new_explicit_location, copy_event_location): Return event_location_up. (delete_event_location_cleanup) (make_cleanup_delete_event_location): Remove. (string_to_explicit_location, string_to_event_location_basic) (string_to_event_location): Return event_location_up. * linespec.c (canonicalize_linespec, event_location_to_sals) (decode_line_with_current_source) (decode_line_with_last_displayed, decode_objc): Update. * guile/scm-breakpoint.c (gdbscm_register_breakpoint_x): Update. * completer.c (location_completer): Update. * cli/cli-cmds.c (edit_command, list_command): Update. * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint) (create_thread_event_breakpoint): Update. (init_breakpoint_sal): Update. Remove some dead code. (create_breakpoint_sal): Change type of "location". Update. (create_breakpoints_sal, create_breakpoint, break_command_1) (dprintf_command, break_range_command, until_break_command) (init_ada_exception_breakpoint) (strace_marker_create_sals_from_location) (update_static_tracepoint, trace_command, ftrace_command) (strace_command, create_tracepoint_from_upload): Update. * break-catch-throw.c (re_set_exception_catchpoint): Update. * ax-gdb.c (agent_command_1): Update.
2017-04-06 04:44:01 +02:00
event_location_up location;
remove trivialy unused variables gdb/ChangeLog: 2016-05-07 Trevor Saunders <tbsaunde+binutils@tbsaunde.org> * aarch64-linux-tdep.c (aarch64_linux_sigframe_init): Remove unused variables. * aarch64-tdep.c (aarch64_skip_prologue): Likewise. (aarch64_scan_prologue): Likewise. (aarch64_prologue_prev_register): Likewise. (aarch64_dwarf2_prev_register): Likewise. (pass_in_v): Likewise. (aarch64_push_dummy_call): Likewise. (aarch64_breakpoint_from_pc): Likewise. (aarch64_return_in_memory): Likewise. (aarch64_return_value): Likewise. (aarch64_displaced_step_b_cond): Likewise. (aarch64_displaced_step_cb): Likewise. (aarch64_displaced_step_tb): Likewise. (aarch64_gdbarch_init): Likewise. (aarch64_process_record): Likewise. * alpha-mdebug-tdep.c (alpha_mdebug_init_abi): Likewise. * alpha-tdep.c (_initialize_alpha_tdep): Likewise. * amd64-dicos-tdep.c (amd64_dicos_init_abi): Likewise. * amd64-linux-tdep.c (amd64_dtrace_parse_probe_argument): Likewise. * amd64-tdep.c (fixup_riprel): Likewise. * amd64-windows-tdep.c (amd64_windows_frame_decode_epilogue): Likewise. (amd64_windows_frame_decode_insns): Likewise. (amd64_windows_frame_cache): Likewise. (amd64_windows_frame_prev_register): Likewise. (amd64_windows_frame_this_id): Likewise. (amd64_windows_init_abi): Likewise. * arm-linux-tdep.c (arm_linux_get_syscall_number): Likewise. (arm_linux_get_next_pcs_syscall_next_pc): Likewise. * arm-symbian-tdep.c (arm_symbian_init_abi): Likewise. * arm-tdep.c (arm_make_epilogue_frame_cache): Likewise. (arm_epilogue_frame_prev_register): Likewise. (arm_record_vdata_transfer_insn): Likewise. (arm_record_exreg_ld_st_insn): Likewise. * auto-load.c (execute_script_contents): Likewise. (print_scripts): Likewise. * avr-tdep.c (avr_frame_prev_register): Likewise. (avr_push_dummy_call): Likewise. * bfin-linux-tdep.c (bfin_linux_sigframe_init): Likewise. * bfin-tdep.c (bfin_gdbarch_init): Likewise. * blockframe.c (find_pc_partial_function_gnu_ifunc): Likewise. * break-catch-throw.c (fetch_probe_arguments): Likewise. * breakpoint.c (breakpoint_xfer_memory): Likewise. (breakpoint_init_inferior): Likewise. (breakpoint_inserted_here_p): Likewise. (software_breakpoint_inserted_here_p): Likewise. (hardware_breakpoint_inserted_here_p): Likewise. (bpstat_what): Likewise. (break_range_command): Likewise. (save_breakpoints): Likewise. * coffread.c (coff_symfile_read): Likewise. * cris-tdep.c (cris_push_dummy_call): Likewise. (cris_scan_prologue): Likewise. (cris_register_size): Likewise. (_initialize_cris_tdep): Likewise. * d-exp.y: Likewise. * dbxread.c (dbx_read_symtab): Likewise. (process_one_symbol): Likewise. (coffstab_build_psymtabs): Likewise. (elfstab_build_psymtabs): Likewise. * dicos-tdep.c (dicos_init_abi): Likewise. * disasm.c (do_mixed_source_and_assembly): Likewise. (gdb_disassembly): Likewise. * dtrace-probe.c (dtrace_process_dof): Likewise. * dwarf2read.c (error_check_comp_unit_head): Likewise. (build_type_psymtabs_1): Likewise. (skip_one_die): Likewise. (process_imported_unit_die): Likewise. (dwarf2_physname): Likewise. (read_file_scope): Likewise. (setup_type_unit_groups): Likewise. (create_dwo_cu_reader): Likewise. (create_dwo_cu): Likewise. (create_dwo_unit_in_dwp_v1): Likewise. (create_dwo_unit_in_dwp_v2): Likewise. (lookup_dwo_unit_in_dwp): Likewise. (free_dwo_file): Likewise. (check_producer): Likewise. (dwarf2_add_typedef): Likewise. (dwarf2_add_member_fn): Likewise. (read_unsigned_leb128): Likewise. (read_signed_leb128): Likewise. (dwarf2_const_value): Likewise. (follow_die_sig_1): Likewise. (dwarf_decode_macro_bytes): Likewise. * extension.c (restore_active_ext_lang): Likewise. * frv-linux-tdep.c (frv_linux_sigtramp_frame_cache): Likewise. * ft32-tdep.c (ft32_analyze_prologue): Likewise. * gdbtypes.c (lookup_typename): Likewise. (resolve_dynamic_range): Likewise. (check_typedef): Likewise. * h8300-tdep.c (h8300_is_argument_spill): Likewise. (h8300_gdbarch_init): Likewise. * hppa-tdep.c (hppa32_push_dummy_call): Likewise. (hppa_frame_this_id): Likewise. (_initialize_hppa_tdep): Likewise. * hppanbsd-tdep.c (hppanbsd_sigtramp_cache_init): Likewise. * hppaobsd-tdep.c (hppaobsd_supply_fpregset): Likewise. * i386-dicos-tdep.c (i386_dicos_init_abi): Likewise. * i386-tdep.c (i386_bnd_type): Likewise. (i386_gdbarch_init): Likewise. (i386_mpx_bd_base): Likewise. * i386nbsd-tdep.c (i386nbsd_sigtramp_cache_init): Likewise. * i386obsd-tdep.c (i386obsd_elf_init_abi): Likewise. * ia64-tdep.c (examine_prologue): Likewise. (ia64_frame_cache): Likewise. (ia64_push_dummy_call): Likewise. * infcmd.c (finish_command_fsm_async_reply_reason): Likewise. (default_print_one_register_info): Likewise. * infrun.c (infrun_thread_ptid_changed): Likewise. (thread_still_needs_step_over): Likewise. (stop_all_threads): Likewise. (restart_threads): Likewise. (keep_going_stepped_thread): Likewise. * iq2000-tdep.c (iq2000_scan_prologue): Likewise. * language.c (language_init_primitive_type_symbols): Likewise. * linespec.c (add_sal_to_sals): Likewise. * linux-nat.c (status_callback): Likewise. (kill_unfollowed_fork_children): Likewise. (linux_nat_kill): Likewise. * linux-tdep.c (linux_fill_prpsinfo): Likewise. * linux-thread-db.c (thread_db_notice_clone): Likewise. (record_thread): Likewise. * location.c (string_to_event_location_basic): Likewise. * m32c-tdep.c (m32c_prev_register): Likewise. * m32r-linux-tdep.c (m32r_linux_init_abi): Likewise. * m32r-tdep.c (decode_prologue): Likewise. * m68klinux-tdep.c (m68k_linux_sigtramp_frame_cache): Likewise. * machoread.c (macho_symtab_read): Likewise. (macho_symfile_read): Likewise. (macho_symfile_offsets): Likewise. * maint.c (set_per_command_cmd): Likewise. * mi/mi-cmd-stack.c (mi_cmd_stack_list_locals): Likewise. (mi_cmd_stack_list_variables): Likewise. * mi/mi-main.c (mi_cmd_exec_run): Likewise. (output_register): Likewise. (mi_cmd_execute): Likewise. (mi_cmd_trace_define_variable): Likewise. (print_variable_or_computed): Likewise. * minsyms.c (prim_record_minimal_symbol_full): Likewise. * mn10300-tdep.c (mn10300_frame_prev_register): Likewise. * msp430-tdep.c (msp430_pseudo_register_write): Likewise. * mt-tdep.c (mt_registers_info): Likewise. * nios2-tdep.c (nios2_analyze_prologue): Likewise. (nios2_push_dummy_call): Likewise. (nios2_frame_unwind_cache): Likewise. (nios2_stub_frame_cache): Likewise. (nios2_stub_frame_sniffer): Likewise. (nios2_gdbarch_init): Likewise. * ppc-ravenscar-thread.c: Likewise. * ppcfbsd-tdep.c (ppcfbsd_sigtramp_frame_cache): Likewise. * python/py-evts.c (add_new_registry): Likewise. * python/py-finishbreakpoint.c (bpfinishpy_init): Likewise. (bpfinishpy_detect_out_scope_cb): Likewise. * python/py-framefilter.c (py_print_value): Likewise. * python/py-inferior.c (infpy_write_memory): Likewise. * python/py-infevents.c (create_inferior_call_event_object): Likewise. * python/py-infthread.c (thpy_get_ptid): Likewise. * python/py-linetable.c (ltpy_get_pcs_for_line): Likewise. (ltpy_get_all_source_lines): Likewise. (ltpy_is_valid): Likewise. (ltpy_iternext): Likewise. * python/py-symtab.c (symtab_and_line_to_sal_object): Likewise. * python/py-unwind.c (pyuw_object_attribute_to_pointer): Likewise. (unwind_infopy_str): Likewise. * python/py-varobj.c (py_varobj_get_iterator): Likewise. * ravenscar-thread.c (ravenscar_inferior_created): Likewise. * rs6000-aix-tdep.c (rs6000_push_dummy_call): Likewise. * rs6000-lynx178-tdep.c (rs6000_lynx178_push_dummy_call): Likewise. * rs6000-tdep.c (ppc_deal_with_atomic_sequence): Likewise. * s390-linux-tdep.c (s390_supply_tdb_regset): Likewise. (s390_frame_prev_register): Likewise. (s390_dwarf2_frame_init_reg): Likewise. (s390_record_vr): Likewise. (s390_process_record): Likewise. * score-tdep.c (score_push_dummy_call): Likewise. (score3_analyze_prologue): Likewise. * sh-tdep.c (sh_extract_return_value_nofpu): Likewise. * sh64-tdep.c (sh64_analyze_prologue): Likewise. (sh64_push_dummy_call): Likewise. (sh64_extract_return_value): Likewise. (sh64_do_fp_register): Likewise. * solib-aix.c (solib_aix_get_section_offsets): Likewise. * solib-darwin.c (darwin_read_exec_load_addr_from_dyld): Likewise. (darwin_solib_read_all_image_info_addr): Likewise. * solib-dsbt.c (enable_break): Likewise. * solib-frv.c (enable_break2): Likewise. (frv_fdpic_find_canonical_descriptor): Likewise. * solib-svr4.c (svr4_handle_solib_event): Likewise. * sparc-tdep.c (sparc_skip_stack_check): Likewise. * sparc64-linux-tdep.c (sparc64_linux_get_longjmp_target): Likewise. * sparcobsd-tdep.c (sparc32obsd_init_abi): Likewise. * spu-tdep.c (info_spu_dma_cmdlist): Likewise. * stack.c (read_frame_local): Likewise. * symfile.c (symbol_file_add_separate): Likewise. (remove_symbol_file_command): Likewise. * symmisc.c (maintenance_print_one_line_table): Likewise. * symtab.c (symbol_cache_flush): Likewise. (basic_lookup_transparent_type): Likewise. (sort_search_symbols_remove_dups): Likewise. * target.c (target_memory_map): Likewise. (target_detach): Likewise. (target_resume): Likewise. (acquire_fileio_fd): Likewise. (target_store_registers): Likewise. * thread.c (print_thread_info_1): Likewise. * tic6x-tdep.c (tic6x_analyze_prologue): Likewise. * tilegx-linux-tdep.c (tilegx_linux_sigframe_init): Likewise. * tilegx-tdep.c (tilegx_push_dummy_call): Likewise. (tilegx_analyze_prologue): Likewise. (tilegx_stack_frame_destroyed_p): Likewise. (tilegx_frame_cache): Likewise. * tracefile.c (trace_save): Likewise. * tracepoint.c (encode_actions_and_make_cleanup): Likewise. (start_tracing): Likewise. (print_one_static_tracepoint_marker): Likewise. * tui/tui.c (tui_enable): Likewise. * valops.c (value_struct_elt_bitpos): Likewise. (find_overload_match): Likewise. (find_oload_champ): Likewise. * value.c (value_contents_copy_raw): Likewise. * windows-tdep.c (windows_get_tlb_type): Likewise. * x86-linux-nat.c (x86_linux_enable_btrace): Likewise. * xcoffread.c (record_minimal_symbol): Likewise. (scan_xcoff_symtab): Likewise. * xtensa-tdep.c (execute_code): Likewise. (xtensa_gdbarch_init): Likewise. (_initialize_xtensa_tdep): Likewise.
2016-04-18 19:16:27 +02:00
const char *cs;
/* Try the input as a probe spec. */
cs = *stringp;
if (cs != NULL && probe_linespec_to_ops (&cs) != NULL)
{
location = new_probe_location (*stringp);
*stringp += strlen (*stringp);
}
else
{
/* Try an address location. */
if (*stringp != NULL && **stringp == '*')
{
Explicit locations: add UI features for CLI This patch exposes explicit locations to the CLI user. This enables users to "explicitly" specify attributes of the breakpoint location to avoid any ambiguity that might otherwise exist with linespecs. The general syntax of explicit locations is: -source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME -label LABEL_NAME Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users may use the completer with either options or values. gdb/ChangeLog: * completer.c: Include location.h. (enum match_type): New enum. (location_completer): Rename to ... (linespec_completer): ... this. (collect_explicit_location_matches, backup_text_ptr) (explicit_location_completer): New functions. (location_completer): "New" function; handle linespec and explicit location completions. (complete_line_internal): Remove all location completer-specific handling. * linespec.c (linespec_lexer_lex_keyword, is_ada_operator) (find_toplevel_char): Export. (linespec_parse_line_offset): Export. Issue error if STRING is not numerical. (gdb_get_linespec_parser_quote_characters): New function. * linespec.h (linespec_parse_line_offset): Declare. (get_gdb_linespec_parser_quote_characters): Declare. (is_ada_operator): Declare. (find_toplevel_char): Declare. (linespec_lexer_lex_keyword): Declare. * location.c (explicit_to_event_location): New function. (explicit_location_lex_one): New function. (string_to_explicit_location): New function. (string_to_event_location): Handle explicit locations. * location.h (explicit_to_event_location): Declare. (string_to_explicit_location): Declare. gdb/testsuite/ChangeLog: * gdb.linespec/3explicit.c: New file. * gdb.linespec/cpexplicit.cc: New file. * gdb.linespec/cpexplicit.exp: New file. * gdb.linespec/explicit.c: New file. * gdb.linespec/explicit.exp: New file. * gdb.linespec/explicit2.c: New file. * gdb.linespec/ls-errs.exp: Add explicit location tests. * lib/gdb.exp (capture_command_output): Regexp-escape `command' before using in the matching pattern. Clarify that `prefix' is a regular expression.
2015-08-12 02:09:36 +02:00
const char *arg, *orig;
CORE_ADDR addr;
Explicit locations: add UI features for CLI This patch exposes explicit locations to the CLI user. This enables users to "explicitly" specify attributes of the breakpoint location to avoid any ambiguity that might otherwise exist with linespecs. The general syntax of explicit locations is: -source SOURCE_FILENAME -line {+-}LINE -function FUNCTION_NAME -label LABEL_NAME Option names may be abbreviated, e.g., "-s SOURCE_FILENAME -li 3" and users may use the completer with either options or values. gdb/ChangeLog: * completer.c: Include location.h. (enum match_type): New enum. (location_completer): Rename to ... (linespec_completer): ... this. (collect_explicit_location_matches, backup_text_ptr) (explicit_location_completer): New functions. (location_completer): "New" function; handle linespec and explicit location completions. (complete_line_internal): Remove all location completer-specific handling. * linespec.c (linespec_lexer_lex_keyword, is_ada_operator) (find_toplevel_char): Export. (linespec_parse_line_offset): Export. Issue error if STRING is not numerical. (gdb_get_linespec_parser_quote_characters): New function. * linespec.h (linespec_parse_line_offset): Declare. (get_gdb_linespec_parser_quote_characters): Declare. (is_ada_operator): Declare. (find_toplevel_char): Declare. (linespec_lexer_lex_keyword): Declare. * location.c (explicit_to_event_location): New function. (explicit_location_lex_one): New function. (string_to_explicit_location): New function. (string_to_event_location): Handle explicit locations. * location.h (explicit_to_event_location): Declare. (string_to_explicit_location): Declare. gdb/testsuite/ChangeLog: * gdb.linespec/3explicit.c: New file. * gdb.linespec/cpexplicit.cc: New file. * gdb.linespec/cpexplicit.exp: New file. * gdb.linespec/explicit.c: New file. * gdb.linespec/explicit.exp: New file. * gdb.linespec/explicit2.c: New file. * gdb.linespec/ls-errs.exp: Add explicit location tests. * lib/gdb.exp (capture_command_output): Regexp-escape `command' before using in the matching pattern. Clarify that `prefix' is a regular expression.
2015-08-12 02:09:36 +02:00
orig = arg = *stringp;
addr = linespec_expression_to_pc (&arg);
location = new_address_location (addr, orig, arg - orig);
*stringp += arg - orig;
}
else
{
/* Everything else is a linespec. */
location = new_linespec_location (stringp);
}
}
return location;
}
/* See description in location.h. */
Introduce event_location_up This removes make_cleanup_delete_event_location and instead changes the various location functions to return an event_location_up, a new unique_ptr typedef. This is largely straightforward, but be sure to examine the init_breakpoint_sal change. I believe the code I deleted there is dead, because "location != NULL" can never be true in that branch; but you should double-check. gdb/ChangeLog 2017-04-12 Tom Tromey <tom@tromey.com> * tracepoint.c (scope_info): Update. * spu-tdep.c (spu_catch_start): Update. * python/python.c (gdbpy_decode_line): Update. * python/py-finishbreakpoint.c (bpfinishpy_init): Update. * python/py-breakpoint.c (bppy_init): Update. * probe.c (parse_probes): Update. * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Update. * location.h (event_location_deleter): New struct. (event_location_up): New typedef. (new_linespec_location, new_address_location, new_probe_location) (new_explicit_location, copy_event_location) (string_to_event_location, string_to_event_location_basic) (string_to_explicit_location): Update return type. (make_cleanup_delete_event_location): Remove. * location.c (new_linespec_location, new_address_location) (new_probe_location, new_explicit_location, copy_event_location): Return event_location_up. (delete_event_location_cleanup) (make_cleanup_delete_event_location): Remove. (string_to_explicit_location, string_to_event_location_basic) (string_to_event_location): Return event_location_up. * linespec.c (canonicalize_linespec, event_location_to_sals) (decode_line_with_current_source) (decode_line_with_last_displayed, decode_objc): Update. * guile/scm-breakpoint.c (gdbscm_register_breakpoint_x): Update. * completer.c (location_completer): Update. * cli/cli-cmds.c (edit_command, list_command): Update. * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint) (create_thread_event_breakpoint): Update. (init_breakpoint_sal): Update. Remove some dead code. (create_breakpoint_sal): Change type of "location". Update. (create_breakpoints_sal, create_breakpoint, break_command_1) (dprintf_command, break_range_command, until_break_command) (init_ada_exception_breakpoint) (strace_marker_create_sals_from_location) (update_static_tracepoint, trace_command, ftrace_command) (strace_command, create_tracepoint_from_upload): Update. * break-catch-throw.c (re_set_exception_catchpoint): Update. * ax-gdb.c (agent_command_1): Update.
2017-04-06 04:44:01 +02:00
event_location_up
Constify some linespec functions This changes a few linespec functions to work on "const char *" and then fixes up all the callers. This allows further constification elsewhere. gdb/ChangeLog 2017-09-27 Tom Tromey <tom@tromey.com> * tracepoint.c (info_scope_command): Constify. * python/python.c (gdbpy_decode_line): Constify. * python/py-breakpoint.c (bppy_init): Constify. * mi/mi-cmd-break.c (mi_cmd_break_insert_1): Constify. * location.h: (new_linespec_location) (string_to_event_location_basic, string_to_event_location): Constify. * location.c (new_linespec_location) (string_to_event_location_basic, string_to_event_location): Constify. * linespec.h (decode_line_with_current_source) (decode_line_with_last_displayed, linespec_lex_to_end): Constify. * linespec.c (linespec_lex_to_end) (decode_line_with_current_source) (decode_line_with_last_displayed): Constify. * guile/scm-breakpoint.c (gdbscm_register_breakpoint_x): Constify. * cli/cli-cmds.c (edit_command, list_command): Constify. * breakpoint.h (until_break_command, watch_command_wrapper) (awatch_command_wrapper, rwatch_command_wrapper) (init_ada_exception_breakpoint): Constify. * breakpoint.c (break_command_1, dprintf_command) (break_range_command, watch_command_wrapper) (rwatch_command_wrapper, awatch_command_wrapper) (until_break_command, init_ada_exception_breakpoint) (strace_marker_create_sals_from_location, trace_command) (ftrace_command, strace_command, struct tracepoint): Constify. * ax-gdb.c (agent_command_1): Constify. * ada-lang.c (ada_exception_sal): Constify.
2017-09-13 02:32:41 +02:00
string_to_event_location (const char **stringp,
const struct language_defn *language)
{
const char *arg, *orig;
/* Try an explicit location. */
orig = arg = *stringp;
Rewrite/enhance explicit locations completer, parse left->right One of the most annoying (to me) things about GDB's completion is when you have overloads in your program, and you want to set a breakpoint in one of them: void function(int); // set breakpoint here. void function(long); (gdb) b -f func[TAB] (gdb) b -f function( # ok, gdb completed as much as possible. (gdb) b -f function([TAB] # show me the overloads, please. <_all_ symbols in the program are shown...> E.g., when debugging GDB, that'd be: (gdb) b -f function([TAB] (anonymous namespace)::get_global()::global pt_insn_get_offset@plt scm_new_port_table_entry asprintf pt_pkt_alloc_decoder scm_new_port_table_entry@plt asprintf@plt pt_pkt_alloc_decoder@plt scm_out_of_range bt_ctf_get_char_array pt_pkt_sync_forward scm_out_of_range@plt bt_ctf_get_char_array@plt pt_pkt_sync_forward@plt scm_putc bt_ctf_get_uint64 pwrite scm_putc@plt bt_ctf_get_uint64@plt pwrite@plt scm_reverse_x bt_ctf_iter_read_event PyErr_Restore scm_reverse_x@plt bt_ctf_iter_read_event@plt PyErr_Restore@plt scm_set_port_filename_x <snip...> Now that's a load of completely useless completions. The reason GDB offers those is that the completer relies on readline figuring out the completion word point in the input line based on the language's word break characters, which include "(". So readline tells the completer to complete on "", the string that is after '('. Likewise, if you type "function(i[TAB]" to try to complete to "int", you're out of luck. GDB shows you all the symbols in the program that start with "i"... This makes sense for the expression completer, as what you'd want to type is e.g., a global variable, say: (gdb) print function(i[TAB] but, it makes no sense when specifying a function name for a breakpoint location. To get around that limitation, users need to quote the function name, like: (gdb) b -f 'function([TAB] function(int) function(long) (gdb) b 'function(i[TAB] (gdb) b 'function(int)' # now completes correctly! Note that the quoting is only necessary for completion. Creating the breakpoint does not require the quoting: (gdb) b -f function(int) [RET] Breakpoint 1 at .... This patch removes this limitation. ( Actually, it's a necessary patch, though not sufficient. That'll start working correctly by the end of the series. With this patch, if try it, you'll see: (gdb) b -f function(i[TAB] (gdb) b -f function i.e., gdb strips everything after the "(". That's caused by some code in symtab.c that'll be eliminated further down the series. These patches are all unfortunately interrelated, which is also the reason new tests only appear much later in the series. But let's ignore that reality for the remainder of the description. ) So... this patch gets rid of the need for quoting. It does that by adding a way for a completer to control the exact completion word point that readline should start the completion request for, instead of letting readline try to figure it out using the current language's word break chars array, and often failing. In the case above, we want the completer to figure out that it's completing a function name that starts with "function(i". It now does. It took me a while to figure out a way to ask readline to "use this exact word point", and for a while I feared that it'd be impossible with current readline (and having to rely on master readline for core functionality is something I'd like to avoid very much). Eventually, after several different attempts, I came up with what is described in the comment above gdb_custom_word_point_brkchars in the patch. With this patch, the handle_brkchars phase of the explicit location completer advances the expected word point as it parses the input line left to right, until it figures out exactly what we're completing, instead of expecting readline to break the string using the word break characters, and then having the completer heuristically fix up a bad decision by parsing the input string backwards. This allows correctly knowning that we're completing a symbol name after -function, complete functions without quoting, etc. Later, we'll make use of this same mechanims to implement a proper linespec completer that avoids need for quoting too. gdb/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * ada-lang.c (ada_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * cli/cli-cmds.c (complete_command): Get the completion result out of the handle_brkchars tracker if used a custom word point. * completer.c: Include "linespec.h". (enum explicit_location_match_type) <MATCH_LINE>: New enumerator. (advance_to_expression_complete_word_point): New. (completion_tracker::completes_to_completion_word): New. (complete_files_symbols): Pass down complete_symbol_mode::EXPRESSION. (explicit_options, probe_options): New. (collect_explicit_location_matches): Complete on the explictit_loc->foo instead of word. Use linespec_complete_function. Handle MATCH_LINE. Handle offering keyword and options completions. (backup_text_ptr): Delete. (skip_keyword): New. (complete_explicit_location): Remove 'word' parameter. Add language, quoted_arg_start and quoted_arg_end parameters. Rewrite, parsing left to right. (location_completer): Rewrite. (location_completer_handle_brkchars): New function. (symbol_completer): Pass down complete_symbol_mode::EXPRESSION. (enum complete_line_internal_reason): Adjust comments. (completion_tracker::discard_completions): New. (completer_handle_brkchars_func_for_completer): Handle location_completer. (gdb_custom_word_point_brkchars) (gdb_org_rl_basic_quote_characters): New. (gdb_completion_word_break_characters_throw) (completion_find_completion_word): Handle trackers that use a custom word point. (completion_tracker::advance_custom_word_point_by): New. (completion_tracker::build_completion_result): Don't rely on readline appending the quote char. (gdb_rl_attempted_completion_function_throw): Handle trackers that use a custom word point. (gdb_rl_attempted_completion_function): Restore rl_basic_quote_characters. * completer.h (class completion_tracker): Extend intro comment. (completion_tracker::set_quote_char) (completion_tracker::quote_char) (completion_tracker::set_use_custom_word_point) (completion_tracker::use_custom_word_point) (completion_tracker::custom_word_point) (completion_tracker::set_custom_word_point) (completion_tracker::advance_custom_word_point_by) (completion_tracker::completes_to_completion_word) (completion_tracker::discard_completions): New methods. (completion_tracker::m_quote_char) (completion_tracker::m_use_custom_word_point) (completion_tracker::m_custom_word_point): New fields. (advance_to_expression_complete_word_point): Declare. * f-lang.c (f_collect_symbol_completion_matches): Add complete_symbol_mode parameter. * language.h (struct language_defn) <la_collect_symbol_completion_matches>: Add complete_symbol_mode parameter. * linespec.c (linespec_keywords): Add NULL terminator. Make extern. (linespec_complete_function): New function. (linespec_lexer_lex_keyword): Adjust. * linespec.h (linespec_keywords, linespec_complete_function): New declarations. * location.c (find_end_quote): New function. (explicit_location_lex_one): Add explicit_completion_info parameter. Save quoting info. Don't throw if being called for completion. Don't handle Ada operators here. (is_cp_operator, skip_op_false_positives, first_of) (explicit_location_lex_one_function): New function. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. Handle it. Don't use explicit_location_lex_one to lex function names. Use explicit_location_lex_one_function instead. * location.h (struct explicit_completion_info): New. (string_to_explicit_location): Replace 'dont_throw' parameter with an explicit_completion_info pointer parameter. * symtab.c (default_collect_symbol_completion_matches_break_on): Add complete_symbol_mode parameter. Handle LINESPEC mode. (default_collect_symbol_completion_matches) (collect_symbol_completion_matches): Add complete_symbol_mode parameter. (collect_symbol_completion_matches_type): Pass down complete_symbol_mode::EXPRESSION. (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. Handle LINESPEC mode. * symtab.h (complete_symbol_mode): New. (default_collect_symbol_completion_matches_break_on) (default_collect_symbol_completion_matches) (collect_symbol_completion_matches) (collect_file_symbol_completion_matches): Add complete_symbol_mode parameter. gdb/testsuite/ChangeLog: 2017-07-17 Pedro Alves <palves@redhat.com> * gdb.linespec/ls-errs.exp (do_test): Adjust expected output.
2017-07-17 21:21:33 +02:00
event_location_up location = string_to_explicit_location (&arg, language, NULL);
if (location != NULL)
{
/* It was a valid explicit location. Advance STRINGP to
the end of input. */
*stringp += arg - orig;
}
else
{
/* Everything else is a "basic" linespec, address, or probe
location. */
location = string_to_event_location_basic (stringp, language);
}
return location;
}
/* See description in location.h. */
int
event_location_empty_p (const struct event_location *location)
{
switch (EL_TYPE (location))
{
case LINESPEC_LOCATION:
/* Linespecs are never "empty." (NULL is a valid linespec) */
return 0;
case ADDRESS_LOCATION:
return 0;
Explicit locations: introduce explicit locations This patch add support for explicit locations and switches many linespec locations to this new location type. This patch also converts all linespec locations entered by the user to an explicit representation internally (thus bypassing the linespec parser when resetting the breakpoint). This patch does not introduce any user-visible changes. gdb/ChangeLog: * break-catch-throw.c (re_set_exception_catchpoint): Convert linespec into explicit location. * breakpoint.c (create_overlay_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Convert linespec into explicit location. (update_static_tracepoint): Convert linespec into explicit location. * linespec.c (enum offset_relative_sign, struct line_offset): Move location.h. (struct linespec) <expression, expr_pc, source_filename> <function_name, label_name, line_offset>: Replace with ... <explicit>: ... this. <is_linespec>: New member. (PARSER_EXPLICIT): New accessor macro. (undefined_label_error): New function. (source_file_not_found_error): New function. (linespec_parse_basic): The parser result is now an explicit location. Use PARSER_EXPLICIT to access it. Use undefined_label_error. (canonicalize_linespec): Convert canonical linespec into explicit location. Move string representation of location to explicit_location_to_linespec and use it and explicit_location_to_string to save string representations of the canonical location. (create_sals_line_offset, convert_linespec_to_sals): `ls' contains an explicit location. Update all references. (convert_explicit_location_to_sals): New function. (parse_linespec): Use PARSER_EXPLICIT to access the parser result's explicit location. (linespec_state_constructor): Initialize is_linespec. Use PARSER_EXPLICIT. (linespec_parser_delete): Use PARSER_EXPLICIT to access the parser's result. (event_location_to_sals): For linespec locations, set is_linespec. Handle explicit locations. (decode_objc): 'ls' contains an explicit location now. Update all references. (symtabs_from_filename): Use source_file_not_found_error. * location.c (struct event_location.u) <explicit>: New member. (initialize_explicit_location): New function. (initialize_event_location): Initialize explicit locations. (new_explicit_location, get_explicit_location) (get_explicit_location_const): New functions. (explicit_to_string_internal): New function; most of contents moved from canonicalize_linespec. (explicit_location_to_string): New function. (explicit_location_to_linespec): New function. (copy_event_location, delete_event_location) (event_location_to_string_const, event_location_empty_p): Handle explicit locations. * location.h (enum offset_relative_sign, struct line_offset): Move here from linespec.h. (enum event_location_type): Add EXPLICIT_LOCATION. (struct explicit_location): New structure. (explicit_location_to_string): Declare. (explicit_location_to_linespec): Declare. (new_explicit_location, get_explicit_locationp (get_explicit_location_const, initialize_explicit_location): Declare.
2015-08-12 02:09:35 +02:00
case EXPLICIT_LOCATION:
return (EL_EXPLICIT (location) == NULL
|| (EL_EXPLICIT (location)->source_filename == NULL
&& EL_EXPLICIT (location)->function_name == NULL
&& EL_EXPLICIT (location)->label_name == NULL
&& (EL_EXPLICIT (location)->line_offset.sign
== LINE_OFFSET_UNKNOWN)));
case PROBE_LOCATION:
return EL_PROBE (location) == NULL;
default:
gdb_assert_not_reached ("unknown event location type");
}
}
/* See description in location.h. */
void
set_event_location_string (struct event_location *location,
const char *string)
{
xfree (EL_STRING (location));
EL_STRING (location) = string == NULL ? NULL : xstrdup (string);
}