binutils-gdb/gdb/frame-unwind.c

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/* Definitions for frame unwinder, for GDB, the GNU debugger.
2007-01-09 18:59:20 +01:00
Copyright (C) 2003, 2004, 2007 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 "frame.h"
#include "frame-unwind.h"
#include "gdb_assert.h"
#include "dummy-frame.h"
#include "gdb_obstack.h"
static struct gdbarch_data *frame_unwind_data;
struct frame_unwind_table_entry
{
frame_unwind_sniffer_ftype *sniffer;
const struct frame_unwind *unwinder;
struct frame_unwind_table_entry *next;
};
struct frame_unwind_table
{
struct frame_unwind_table_entry *list;
/* The head of the OSABI part of the search list. */
struct frame_unwind_table_entry **osabi_head;
};
static void *
frame_unwind_init (struct obstack *obstack)
{
struct frame_unwind_table *table
= OBSTACK_ZALLOC (obstack, struct frame_unwind_table);
/* Start the table out with a few default sniffers. OSABI code
can't override this. */
table->list = OBSTACK_ZALLOC (obstack, struct frame_unwind_table_entry);
table->list->unwinder = dummy_frame_unwind;
/* The insertion point for OSABI sniffers. */
table->osabi_head = &table->list->next;
return table;
}
void
frame_unwind_append_sniffer (struct gdbarch *gdbarch,
frame_unwind_sniffer_ftype *sniffer)
{
struct frame_unwind_table *table = gdbarch_data (gdbarch, frame_unwind_data);
struct frame_unwind_table_entry **ip;
/* Find the end of the list and insert the new entry there. */
for (ip = table->osabi_head; (*ip) != NULL; ip = &(*ip)->next);
(*ip) = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct frame_unwind_table_entry);
(*ip)->sniffer = sniffer;
}
void
frame_unwind_prepend_unwinder (struct gdbarch *gdbarch,
const struct frame_unwind *unwinder)
{
struct frame_unwind_table *table = gdbarch_data (gdbarch, frame_unwind_data);
struct frame_unwind_table_entry *entry;
/* Insert the new entry at the start of the list. */
entry = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct frame_unwind_table_entry);
entry->unwinder = unwinder;
entry->next = (*table->osabi_head);
(*table->osabi_head) = entry;
}
const struct frame_unwind *
frame_unwind_find_by_frame (struct frame_info *next_frame, void **this_cache)
{
int i;
struct gdbarch *gdbarch = get_frame_arch (next_frame);
struct frame_unwind_table *table = gdbarch_data (gdbarch, frame_unwind_data);
struct frame_unwind_table_entry *entry;
for (entry = table->list; entry != NULL; entry = entry->next)
{
if (entry->sniffer != NULL)
{
const struct frame_unwind *desc = NULL;
desc = entry->sniffer (next_frame);
if (desc != NULL)
return desc;
}
if (entry->unwinder != NULL)
{
if (entry->unwinder->sniffer (entry->unwinder, next_frame,
this_cache))
return entry->unwinder;
}
}
2005-02-11 Andrew Cagney <cagney@gnu.org> Mark up error_no_arg, query, perror_with_name, complaint, and internal_error. * breakpoint.c, cp-abi.c, cp-namespace.c, cp-support.c: Update. * cris-tdep.c, dbxread.c, dictionary.c, dsrec.c: Update. * dummy-frame.c, dve3900-rom.c, dwarf2-frame.c, dwarf2expr.c: Update. * dwarf2read.c, dwarfread.c, elfread.c, event-loop.c: Update. * exceptions.c, exec.c, f-lang.c, findvar.c, fork-child.c: Update. * frame-unwind.c, frame.c, frv-linux-tdep.c, frv-tdep.c: Update. * gdb_assert.h, gdbarch.c, gdbtypes.c, gnu-nat.c: Update. * go32-nat.c, hppa-tdep.c, hppabsd-nat.c, hpread.c: Update. * i386-linux-nat.c, i386-nat.c, i386-tdep.c, i386bsd-nat.c: Update. * i386fbsd-nat.c, inf-ptrace.c, inf-ttrace.c, infcall.c: Update. * infcmd.c, inflow.c, infptrace.c, infrun.c, inftarg.c: Update. * interps.c, language.c, linespec.c, linux-nat.c: Update. * m32r-linux-nat.c, m68k-tdep.c, m68kbsd-nat.c: Update. * m68klinux-nat.c, m88kbsd-nat.c, macroexp.c, macroscope.c: Update. * macrotab.c, maint.c, mdebugread.c, memattr.c: Update. * mips-linux-tdep.c, mips-tdep.c, mips64obsd-nat.c: Update. * mipsnbsd-nat.c, mn10300-tdep.c, monitor.c, nto-procfs.c: Update. * objc-lang.c, objfiles.c, objfiles.h, ocd.c, osabi.c: Update. * parse.c, ppc-bdm.c, ppc-linux-nat.c, ppc-sysv-tdep.c: Update. * ppcnbsd-nat.c, ppcobsd-nat.c, printcmd.c, procfs.c: Update. * regcache.c, reggroups.c, remote-e7000.c, remote-mips.c: Update. * remote-rdp.c, remote-sds.c, remote-sim.c, remote-st.c: Update. * remote-utils.c, remote.c, rs6000-nat.c, rs6000-tdep.c: Update. * s390-nat.c, s390-tdep.c, sentinel-frame.c, serial.c: Update. * sh-tdep.c, sh3-rom.c, sh64-tdep.c, shnbsd-nat.c: Update. * solib-aix5.c, solib-svr4.c, solib.c, source.c: Update. * sparc-nat.c, stabsread.c, stack.c, symfile.c, symtab.c: Update. * symtab.h, target.c, tracepoint.c, ui-file.c, ui-out.c: Update. * utils.c, valops.c, valprint.c, vax-nat.c, vaxbsd-nat.c: Update. * win32-nat.c, xcoffread.c, xstormy16-tdep.c: Update. * cli/cli-cmds.c, cli/cli-logging.c, cli/cli-script.c: Update. * cli/cli-setshow.c, mi/mi-cmd-break.c, mi/mi-cmds.c: Update. * mi/mi-console.c, mi/mi-getopt.c, mi/mi-out.c: Update. * tui/tui-file.c, tui/tui-interp.c: Update.
2005-02-11 19:13:55 +01:00
internal_error (__FILE__, __LINE__, _("frame_unwind_find_by_frame failed"));
}
2003-06-08 Andrew Cagney <cagney@redhat.com> * acinclude.m4 (gcc_AC_CHECK_DECL, (gcc_AC_CHECK_DECL): Stolen from GCC's acinclude.m4. * configure.in: Check for getopt's delcaration. * aclocal.m4, config.in, configure: Re-generate. * main.c (error_init): Delete declaration. * defs.h (error_init): Declare. * rs6000-tdep.c (rs6000_fetch_pointer_argument): Make static. (rs6000_convert_from_func_ptr_addr): Make static. (_initialize_rs6000_tdep): Add declaration. * cli/cli-cmds.c (dont_repeat): Delete declaration. (show_commands, set_verbose, show_history): Delete declaration. * top.h (set_verbose): Add declaration. (show_history, set_history, show_commands): Add declaration. (do_restore_instream_cleanup): Add declaration. * objc-lang.c (specialcmp): Make static. (print_object_command): Make static. (find_objc_msgsend): Make static. (find_objc_msgcall_submethod_helper): Make static. (find_objc_msgcall_submethod): Make static. (_initialize_objc_language): Add declaration. (find_implementation_from_class): Make static. (find_implementation): Make static. * objc-exp.y (yylex): Delete lookup_struct_typedef declaration. * objc-lang.h (lookup_struct_typedef): Add declaration. * cli/cli-interp.c (_initialize_cli_interp): Add declaration. * cli/cli-script.c (clear_hook_in_cleanup): Make static. (do_restore_user_call_depth): Make static. (do_restore_instream_cleanup): Delete declaration. (dont_repeat): Delete declaration. * cli/cli-decode.c (add_abbrev_cmd): Delete function. * cli/cli-dump.c (_initialize_cli_dump): Add declaration. * reggroups.c (_initialize_reggroup): Add declaration. * cp-support.c (_initialize_cp_support): Add declaration. * cp-abi.c (_initialize_cp_abi): Add declaration. * hpacc-abi.c (_initialize_hpacc_abi): Add declaration. * gnu-v3-abi.c (gnuv3_baseclass_offset): Make static. (_initialize_gnu_v3_abi): Add declaration. * gnu-v2-abi.c (gnuv2_value_rtti_type): Make static. (_initialize_gnu_v2_abi): Add declaration. * frame-base.c (_initialize_frame_base): Add declaration. * doublest.c (floatformat_from_length): Make static. * frame-unwind.c (_initialize_frame_unwind): Add declaration. * frame.c (create_sentinel_frame): Make static. (_initialize_frame): Add declaration. * top.c (do_catch_errors): Make static. (gdb_rl_operate_and_get_next_completion): Make static. * typeprint.c: Include "typeprint.h". * sentinel-frame.c (sentinel_frame_prev_register): Make static. (sentinel_frame_this_id): Make static. * p-valprint.c (_initialize_pascal_valprint): Add declaration. * ui-out.c (make_cleanup_ui_out_begin_end): Delete function. * dwarf2-frame.c (dwarf2_frame_cache): Make static. * p-exp.y (push_current_type, pop_current_type): ISO C declaration. * dwarf2expr.h (dwarf_expr_context): ISO C declaration. * maint.c (maintenance_print_architecture): Make static. * signals/signals.c (_initialize_signals): Add declaration. * std-regs.c (_initialize_frame_reg): Add declaration. * jv-exp.y (push_variable): ISO C definition. (push_qualified_expression_name): Ditto. * memattr.c (_initialize_mem): Add declaration. * remote.c (remote_check_watch_resources): Make static. (remote_stopped_by_watchpoint): Make static. (remote_stopped_data_address): Make static. * d10v-tdep.c (nr_dmap_regs): Make static. (a0_regnum): Make static. (d10v_frame_unwind_cache): Make static. (d10v_frame_p): Make static. * osabi.c (show_osabi): Make static. (_initialize_gdb_osabi): Add extern declaration. * gdbtypes.c (make_qualified_type): Make static. (safe_parse_type): Make static. * macrocmd.c (_initialize_macrocmd): Add extern declaration. * macrotab.c (macro_bcache_free): Make static. * interps.c (interp_set_quiet): Make static. (interpreter_exec_cmd): Make static. * stack.h (select_frame_command): New file. * stack.c: Include "stack.h". (select_frame_command_wrapper): Delete function. (select_frame_command): Make global. * infcall.c: Include "infcall.h". * linespec.c: Include "linespec.h". * symfile.c (sections_overlap): Make static. * cp-support.h (cp_initialize_namespace): ISO C declaration. * charset.c (_initialize_charset): Add missing prototype. * regcache.c (init_legacy_regcache_descr): Make static. (do_regcache_xfree): Make static. (regcache_xfer_part): Make static. (_initialize_regcache): Add missing prototype. * breakpoint.c (parse_breakpoint_sals): Make static. (breakpoint_sals_to_pc): Make static. * interps.h (clear_interpreter_hooks): ISO C declaration. * Makefile.in (stack_h): Define. (stack.o, typeprint.o, mi-main.o): Update dependencies. (mi-cmd-stack.o, infcall.o, linespec.o): Update dependencies. Index: mi/ChangeLog 2003-06-08 Andrew Cagney <cagney@redhat.com> * mi-parse.c (_initialize_mi_parse): Delete function. * mi-main.c: Include "mi-main.h". * mi-interp.c (_initialize_mi_interp): Add declaration. * mi-cmd-stack.c: Include "stack.h". (select_frame_command_wrapper): Delete extern declaration. (mi_cmd_stack_select_frame): Replace select_frame_command_wrapper with select_frame_command.
2003-06-08 20:27:14 +02:00
extern initialize_file_ftype _initialize_frame_unwind; /* -Wmissing-prototypes */
void
_initialize_frame_unwind (void)
{
frame_unwind_data = gdbarch_data_register_pre_init (frame_unwind_init);
}