030f20e19e
* gdbarch.sh (gdbarch_data_pre_init_fytpe) (gdbarch_data_register_pre_init, gdbarch_data_post_init_fytpe) (gdbarch_data_register_post_init): Replace gdbarch_data_init_ftype and register_gdbarch_data. (deprecated_set_gdbarch_data): Rename set_gdbarch_data. (struct gdbarch_data): Replace "init" by "pre_init" and "post_init". * gdbarch.h, gdbarch.c: Re-generate. * dwarf2-frame.c (dwarf2_frame_init): Replace "gdbarch" paramter with"obstack", use OBSTACK_ZALLOC. (dwarf2_frame_ops): Delete. (dwarf2_frame_set_init_reg): Use gdbarch_data. (dwarf2_frame_init_reg): Use gdbarch_data. (_initialize_dwarf2_frame): Use gdbarch_data_register_pre_init. * solib-svr4.c (set_solib_svr4_fetch_link_map_offsets) (_initialize_svr4_solib): Update. * user-regs.c (_initialize_user_regs): Update. * reggroups.c (_initialize_reggroup): Update. * regcache.c (_initialize_regcache): Update. * mips-linux-tdep.c (_initialize_mips_linux_tdep): Update. * libunwind-frame.c (_initialize_libunwind_frame): Update. * gnu-v3-abi.c (init_gnuv3_ops): Update. * frame-unwind.c (_initialize_frame_unwind): Update. * frame-base.c (_initialize_frame_base): Update. * user-regs.c (user_reg_add): Update. * reggroups.c (reggroup_add): Update. * mips-linux-tdep.c (set_mips_linux_register_addr): Update. * libunwind-frame.c (libunwind_frame_set_descr): Update. * frame-unwind.c (frame_unwind_append_sniffer): Update. * frame-base.c (frame_base_table): Update. * remote.c (_initialize_remote): Update. * gdb_obstack.h (OBSTACK_ZALLOC, OBSTACK_CALLOC): Define.
99 lines
3 KiB
C
99 lines
3 KiB
C
/* Definitions for frame unwinder, for GDB, the GNU debugger.
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Copyright 2003 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 2 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, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include "defs.h"
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#include "frame.h"
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#include "frame-unwind.h"
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#include "gdb_assert.h"
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#include "dummy-frame.h"
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static struct gdbarch_data *frame_unwind_data;
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struct frame_unwind_table
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{
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frame_unwind_sniffer_ftype **sniffer;
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int nr;
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};
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/* Append a predicate to the end of the table. */
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static void
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append_predicate (struct frame_unwind_table *table,
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frame_unwind_sniffer_ftype *sniffer)
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{
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table->sniffer = xrealloc (table->sniffer, ((table->nr + 1)
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* sizeof (frame_unwind_sniffer_ftype *)));
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table->sniffer[table->nr] = sniffer;
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table->nr++;
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}
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static void *
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frame_unwind_init (struct gdbarch *gdbarch)
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{
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struct frame_unwind_table *table = XCALLOC (1, struct frame_unwind_table);
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append_predicate (table, dummy_frame_sniffer);
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return table;
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}
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void
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frame_unwind_append_sniffer (struct gdbarch *gdbarch,
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frame_unwind_sniffer_ftype *sniffer)
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{
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struct frame_unwind_table *table =
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gdbarch_data (gdbarch, frame_unwind_data);
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if (table == NULL)
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{
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/* ULGH, called during architecture initialization. Patch
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things up. */
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table = frame_unwind_init (gdbarch);
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deprecated_set_gdbarch_data (gdbarch, frame_unwind_data, table);
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}
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append_predicate (table, sniffer);
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}
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const struct frame_unwind *
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frame_unwind_find_by_frame (struct frame_info *next_frame)
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{
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int i;
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struct gdbarch *gdbarch = get_frame_arch (next_frame);
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struct frame_unwind_table *table = gdbarch_data (gdbarch, frame_unwind_data);
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if (!DEPRECATED_USE_GENERIC_DUMMY_FRAMES && legacy_frame_p (gdbarch))
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/* Seriously old code. Don't even try to use this new mechanism.
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(Note: The variable USE_GENERIC_DUMMY_FRAMES is deprecated, not
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the dummy frame mechanism. All architectures should be using
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generic dummy frames). */
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return legacy_saved_regs_unwind;
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for (i = 0; i < table->nr; i++)
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{
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const struct frame_unwind *desc;
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desc = table->sniffer[i] (next_frame);
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if (desc != NULL)
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return desc;
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}
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return legacy_saved_regs_unwind;
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}
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extern initialize_file_ftype _initialize_frame_unwind; /* -Wmissing-prototypes */
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void
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_initialize_frame_unwind (void)
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{
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frame_unwind_data = gdbarch_data_register_post_init (frame_unwind_init);
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}
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