f00aae0f7b
This patch converts the code base to use the new struct event_location
API being introduced. This patch preserves the current functionality and
adds no new features.
The "big picture" API usage introduced by this patch may be illustrated
with a simple exmaple. Where previously developers would write:
void
my_command (char *arg, int from_tty)
{
create_breakpoint (..., arg, ...);
...
}
one now uses:
void
my_command (char *arg, int from_tty)
{
struct event_locaiton *location;
struct cleanup *back_to;
location = string_to_event_locaiton (&arg, ...);
back_to = make_cleanup_delete_event_location (location);
create_breakpoint (..., location, ...);
do_cleanups (back_to);
}
Linespec-decoding functions (now called location-decoding) such as
decode_line_full no longer skip argument pointers over processed input.
That functionality has been moved into string_to_event_location as
demonstrated above.
gdb/ChangeLog
* ax-gdb.c: Include location.h.
(agent_command_1) Use linespec location instead of address
string.
* break-catch-throw.c: Include location.h.
(re_set_exception_catchpoint): Use linespec locations instead
of address strings.
* breakpoint.c: Include location.h.
(create_overlay_event_breakpoint, create_longjmp_master_breakpoint)
(create_std_terminate_master_breakpoint)
(create_exception_master_breakpoint, update_breakpoints_after_exec):
Use linespec location instead of address string.
(print_breakpoint_location): Use locations and
event_location_to_string.
Print extra_string for pending locations for non-MI streams.
(print_one_breakpoint_location): Use locations and
event_location_to_string.
(init_raw_breakpoint_without_location): Initialize b->location.
(create_thread_event_breakpoint): Use linespec location instead of
address string.
(init_breakpoint_sal): Likewise.
Only save extra_string if it is non-NULL and not the empty string.
Use event_location_to_string instead of `addr_string'.
Constify `p' and `endp'.
Use skip_spaces_const/skip_space_const instead of non-const versions.
Copy the location into the breakpoint.
If LOCATION is NULL, save the breakpoint address as a linespec location
instead of an address string.
(create_breakpoint_sal): Change `addr_string' parameter to a struct
event_location. All uses updated.
(create_breakpoints_sal): Likewise for local variable `addr_string'.
(parse_breakpoint_sals): Use locations instead of address strings.
Remove check for empty linespec with conditional.
Refactor.
(decode_static_tracepoint_spec): Make argument const and update
function.
(create_breakpoint): Change `arg' to a struct event_location and
rename.
Remove `copy_arg' and `addr_start'.
If EXTRA_STRING is empty, set it to NULL.
Don't populate `canonical' for pending breakpoints.
Pass `extra_string' to find_condition_and_thread.
Clear `extra_string' if `rest' was NULL.
Do not error with "garbage after location" if setting a dprintf
breakpoint.
Copy the location into the breakpoint instead of an address string.
(break_command_1): Use string_to_event_location and pass this to
create_breakpoint instead of an address string.
Check against `arg_cp' for a probe linespec.
(dprintf_command): Use string_to_event_location and pass this to
create_breakpoint instead of an address string.
Throw an exception if no format string was specified.
(print_recreate_ranged_breakpoint): Use event_location_to_string
instead of address strings.
(break_range_command, until_break_command)
(init_ada_exception_breakpoint): Use locations instead
of address strings.
(say_where): Print out extra_string for pending locations.
(base_breakpoint_dtor): Delete `location' and `location_range_end' of
the breakpoint.
(base_breakpoint_create_sals_from_location): Use struct event_location
instead of address string.
Remove `addr_start' and `copy_arg' parameters.
(base_breakpoint_decode_location): Use struct event_location instead of
address string.
(bkpt_re_set): Use locations instead of address strings.
Use event_location_empty_p to check for unset location.
(bkpt_print_recreate): Use event_location_to_string instead of
an address string.
Print out extra_string for pending locations.
(bkpt_create_sals_from_location, bkpt_decode_location)
(bkpt_probe_create_sals_from_location): Use struct event_location
instead of address string.
(bkpt_probe_decode_location): Use struct event_location instead of
address string.
(tracepoint_print_recreate): Use event_location_to_string to
recreate the tracepoint.
(tracepoint_create_sals_from_location, tracepoint_decode_location)
(tracepoint_probe_create_sals_from_location)
(tracepoint_probe_decode_location): Use struct event_location
instead of address string.
(dprintf_print_recreate): Use event_location_to_string to recreate
the dprintf.
(dprintf_re_set): Remove check for valid/missing format string.
(strace_marker_create_sals_from_location)
(strace_marker_create_breakpoints_sal, strace_marker_decode_location)
(update_static_tracepoint): Use struct event_location instead of
address string.
(location_to_sals): Likewise.
Pass `extra_string' to find_condition_and_thread.
For newly resolved pending breakpoint locations, clear the location's
string representation.
Assert that the breakpoint's condition string is NULL when
condition_not_parsed.
(breakpoint_re_set_default, create_sals_from_location_default)
(decode_location_default, trace_command, ftrace_command)
(strace_command, create_tracepoint_from_upload): Use locations
instead of address strings.
* breakpoint.h (struct breakpoint_ops) <create_sals_from_location>:
Use struct event_location instead of address string.
Update all uses.
<decode_location>: Likewise.
(struct breakpoint) <addr_string>: Change to struct event_location
and rename `location'.
<addr_string_range_end>: Change to struct event_location and rename
`location_range_end'.
(create_breakpoint): Use struct event_location instead of address
string.
* cli/cli-cmds.c: Include location.h.
(edit_command, list_command): Use locations instead of address strings.
* elfread.c: Include location.h.
(elf_gnu_ifunc_resolver_return_stop): Use event_location_to_string.
* guile/scm-breakpoint.c: Include location.h.
(bpscm_print_breakpoint_smob): Use event_location_to_string.
(gdbscm_register_breakpoint): Use locations instead of address
strings.
* linespec.c: Include location.h.
(struct ls_parser) <stream>: Change to const char *.
(PARSER_STREAM): Update.
(lionespec_lexer_lex_keyword): According to find_condition_and_thread,
keywords must be followed by whitespace.
(canonicalize_linespec): Save a linespec location into `canonical'.
Save a canonical linespec into `canonical'.
(parse_linespec): Change `argptr' to const char * and rename `arg'.
All uses updated.
Update function description.
(linespec_parser_new): Initialize `parser'.
Update initialization of parsing stream.
(event_location_to_sals): New function.
(decode_line_full): Change `argptr' to a struct event_location and
rename it `location'.
Use locations instead of address strings.
Call event_location_to_sals instead of parse_linespec.
(decode_line_1): Likewise.
(decode_line_with_current_source, decode_line_with_last_displayed)
Use locations instead of address strings.
(decode_objc): Likewise.
Change `argptr' to const char * and rename `arg'.
(destroy_linespec_result): Delete the linespec result's location
instead of freeing the address string.
* linespec.h (struct linespec_result) <addr_string>: Change to
struct event_location and rename to ...
<location>: ... this.
(decode_line_1, decode_line_full): Change `argptr' to struct
event_location. All callers updated.
* mi/mi-cmd-break.c: Include language.h, location.h, and linespec.h.
(mi_cmd_break_insert_1): Use locations instead of address strings.
Throw an error if there was "garbage" at the end of the specified
linespec.
* probe.c: Include location.h.
(parse_probes): Change `argptr' to struct event_location.
Use event locations instead of address strings.
* probe.h (parse_probes): Change `argptr' to struct event_location.
* python/py-breakpoint.c: Include location.h.
(bppy_get_location): Constify local variable `str'.
Use event_location_to_string.
(bppy_init): Use locations instead of address strings.
* python/py-finishbreakpoint.c: Include location.h.
(bpfinishpy_init): Remove local variable `addr_str'.
Use locations instead of address strings.
* python/python.c: Include location.h.
(gdbpy_decode_line): Use locations instead of address strings.
* remote.c: Include location.h.
(remote_download_tracepoint): Use locations instead of address
strings.
* spu-tdep.c: Include location.h.
(spu_catch_start): Remove local variable `buf'.
Use locations instead of address strings.
* tracepoint.c: Include location.h.
(scope_info): Use locations instead of address strings.
(encode_source_string): Constify parameter `src'.
* tracepoint.h (encode_source_string): Likewise.
gdb/testsuite/ChangeLog
* gdb.base/dprintf-pending.exp: Update dprintf "without format"
test.
Add tests for missing ",FMT" and ",".
357 lines
10 KiB
C
357 lines
10 KiB
C
/* Data structures associated with tracepoints in GDB.
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Copyright (C) 1997-2015 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#if !defined (TRACEPOINT_H)
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#define TRACEPOINT_H 1
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#include "breakpoint.h"
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#include "target.h"
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#include "memrange.h"
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#include "gdb_vecs.h"
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/* An object describing the contents of a traceframe. */
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struct traceframe_info
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{
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/* Collected memory. */
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VEC(mem_range_s) *memory;
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/* Collected trace state variables. */
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VEC(int) *tvars;
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};
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/* A trace state variable is a value managed by a target being
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traced. A trace state variable (or tsv for short) can be accessed
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and assigned to by tracepoint actions and conditionals, but is not
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part of the program being traced, and it doesn't have to be
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collected. Effectively the variables are scratch space for
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tracepoints. */
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struct trace_state_variable
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{
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/* The variable's name. The user has to prefix with a dollar sign,
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but we don't store that internally. */
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const char *name;
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/* An id number assigned by GDB, and transmitted to targets. */
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int number;
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/* The initial value of a variable is a 64-bit signed integer. */
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LONGEST initial_value;
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/* 1 if the value is known, else 0. The value is known during a
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trace run, or in tfind mode if the variable was collected into
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the current trace frame. */
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int value_known;
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/* The value of a variable is a 64-bit signed integer. */
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LONGEST value;
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/* This is true for variables that are predefined and built into
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the target. */
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int builtin;
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};
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/* The trace status encompasses various info about the general state
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of the tracing run. */
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enum trace_stop_reason
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{
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trace_stop_reason_unknown,
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trace_never_run,
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tstop_command,
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trace_buffer_full,
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trace_disconnected,
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tracepoint_passcount,
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tracepoint_error
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};
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struct trace_status
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{
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/* If the status is coming from a file rather than a live target,
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this points at the file's filename. Otherwise, this is NULL. */
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const char *filename;
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/* This is true if the value of the running field is known. */
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int running_known;
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/* This is true when the trace experiment is actually running. */
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int running;
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enum trace_stop_reason stop_reason;
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/* If stop_reason is tracepoint_passcount or tracepoint_error, this
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is the (on-target) number of the tracepoint which caused the
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stop. */
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int stopping_tracepoint;
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/* If stop_reason is tstop_command or tracepoint_error, this is an
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arbitrary string that may describe the reason for the stop in
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more detail. */
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char *stop_desc;
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/* Number of traceframes currently in the buffer. */
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int traceframe_count;
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/* Number of traceframes created since start of run. */
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int traceframes_created;
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/* Total size of the target's trace buffer. */
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int buffer_size;
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/* Unused bytes left in the target's trace buffer. */
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int buffer_free;
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/* 1 if the target will continue tracing after disconnection, else
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0. If the target does not report a value, assume 0. */
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int disconnected_tracing;
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/* 1 if the target is using a circular trace buffer, else 0. If the
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target does not report a value, assume 0. */
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int circular_buffer;
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/* The "name" of the person running the trace. This is an
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arbitrary string. */
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char *user_name;
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/* "Notes" about the trace. This is an arbitrary string not
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interpreted by GDBserver in any special way. */
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char *notes;
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/* The calendar times at which the trace run started and stopped,
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both expressed in microseconds of Unix time. */
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LONGEST start_time;
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LONGEST stop_time;
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};
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struct trace_status *current_trace_status (void);
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extern char *default_collect;
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extern int trace_regblock_size;
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extern const char *stop_reason_names[];
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/* Struct to collect random info about tracepoints on the target. */
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struct uploaded_tp
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{
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int number;
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enum bptype type;
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ULONGEST addr;
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int enabled;
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int step;
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int pass;
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int orig_size;
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/* String that is the encoded form of the tracepoint's condition. */
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char *cond;
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/* Vectors of strings that are the encoded forms of a tracepoint's
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actions. */
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VEC(char_ptr) *actions;
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VEC(char_ptr) *step_actions;
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/* The original string defining the location of the tracepoint. */
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char *at_string;
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/* The original string defining the tracepoint's condition. */
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char *cond_string;
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/* List of original strings defining the tracepoint's actions. */
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VEC(char_ptr) *cmd_strings;
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/* The tracepoint's current hit count. */
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int hit_count;
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/* The tracepoint's current traceframe usage. */
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ULONGEST traceframe_usage;
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struct uploaded_tp *next;
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};
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/* Struct recording info about trace state variables on the target. */
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struct uploaded_tsv
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{
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const char *name;
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int number;
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LONGEST initial_value;
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int builtin;
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struct uploaded_tsv *next;
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};
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/* Struct recording info about a target static tracepoint marker. */
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struct static_tracepoint_marker
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{
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struct gdbarch *gdbarch;
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CORE_ADDR address;
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/* The string ID of the marker. */
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char *str_id;
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/* Extra target reported info associated with the marker. */
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char *extra;
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};
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struct memrange
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{
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/* memrange_absolute for absolute memory range, else basereg
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number. */
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int type;
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bfd_signed_vma start;
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bfd_signed_vma end;
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};
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struct collection_list
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{
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/* room for up to 256 regs */
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unsigned char regs_mask[32];
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long listsize;
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long next_memrange;
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struct memrange *list;
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/* size of array pointed to by expr_list elt. */
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long aexpr_listsize;
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long next_aexpr_elt;
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struct agent_expr **aexpr_list;
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/* True is the user requested a collection of "$_sdata", "static
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tracepoint data". */
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int strace_data;
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/* A set of names of wholly collected objects. */
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VEC(char_ptr) *wholly_collected;
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/* A set of computed expressions. */
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VEC(char_ptr) *computed;
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};
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extern void parse_static_tracepoint_marker_definition
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(char *line, char **pp,
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struct static_tracepoint_marker *marker);
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extern void release_static_tracepoint_marker (struct static_tracepoint_marker *);
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extern void free_current_marker (void *arg);
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/* A hook used to notify the UI of tracepoint operations. */
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extern void (*deprecated_trace_find_hook) (char *arg, int from_tty);
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extern void (*deprecated_trace_start_stop_hook) (int start, int from_tty);
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/* Returns the current traceframe number. */
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extern int get_traceframe_number (void);
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/* Returns the tracepoint number for current traceframe. */
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extern int get_tracepoint_number (void);
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/* Make the traceframe NUM be the current trace frame, all the way to
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the target, and flushes all global state (register/frame caches,
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etc.). */
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extern void set_current_traceframe (int num);
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struct cleanup *make_cleanup_restore_current_traceframe (void);
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void free_actions (struct breakpoint *);
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extern const char *decode_agent_options (const char *exp, int *trace_string);
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extern struct cleanup *
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encode_actions_and_make_cleanup (struct bp_location *tloc,
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struct collection_list *tracepoint_list,
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struct collection_list *stepping_list);
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extern void encode_actions_rsp (struct bp_location *tloc,
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char ***tdp_actions, char ***stepping_actions);
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extern void validate_actionline (const char *, struct breakpoint *);
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extern void validate_trace_state_variable_name (const char *name);
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extern struct trace_state_variable *find_trace_state_variable (const char *name);
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extern struct trace_state_variable *
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find_trace_state_variable_by_number (int number);
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extern struct trace_state_variable *create_trace_state_variable (const char *name);
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extern int encode_source_string (int num, ULONGEST addr,
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char *srctype, const char *src,
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char *buf, int buf_size);
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extern void parse_trace_status (char *line, struct trace_status *ts);
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extern void parse_tracepoint_status (char *p, struct breakpoint *tp,
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struct uploaded_tp *utp);
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extern void parse_tracepoint_definition (char *line,
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struct uploaded_tp **utpp);
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extern void parse_tsv_definition (char *line, struct uploaded_tsv **utsvp);
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extern struct uploaded_tp *get_uploaded_tp (int num, ULONGEST addr,
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struct uploaded_tp **utpp);
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extern void free_uploaded_tps (struct uploaded_tp **utpp);
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extern struct uploaded_tsv *get_uploaded_tsv (int num,
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struct uploaded_tsv **utsvp);
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extern void free_uploaded_tsvs (struct uploaded_tsv **utsvp);
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extern struct tracepoint *create_tracepoint_from_upload (struct uploaded_tp *utp);
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extern void merge_uploaded_tracepoints (struct uploaded_tp **utpp);
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extern void merge_uploaded_trace_state_variables (struct uploaded_tsv **utsvp);
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extern void query_if_trace_running (int from_tty);
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extern void disconnect_tracing (void);
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extern void trace_reset_local_state (void);
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extern void check_trace_running (struct trace_status *);
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extern void start_tracing (char *notes);
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extern void stop_tracing (char *notes);
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extern void trace_status_mi (int on_stop);
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extern void tvariables_info_1 (void);
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extern void save_trace_state_variables (struct ui_file *fp);
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extern void tfind_1 (enum trace_find_type type, int num,
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CORE_ADDR addr1, CORE_ADDR addr2,
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int from_tty);
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extern void trace_save_tfile (const char *filename,
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int target_does_save);
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extern void trace_save_ctf (const char *dirname,
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int target_does_save);
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extern struct traceframe_info *parse_traceframe_info (const char *tframe_info);
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extern int traceframe_available_memory (VEC(mem_range_s) **result,
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CORE_ADDR memaddr, ULONGEST len);
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extern struct traceframe_info *get_traceframe_info (void);
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extern struct bp_location *get_traceframe_location (int *stepping_frame_p);
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#endif /* TRACEPOINT_H */
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