mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-21 04:42:53 +08:00
1d506c26d9
This commit is the result of the following actions:
- Running gdb/copyright.py to update all of the copyright headers to
include 2024,
- Manually updating a few files the copyright.py script told me to
update, these files had copyright headers embedded within the
file,
- Regenerating gdbsupport/Makefile.in to refresh it's copyright
date,
- Using grep to find other files that still mentioned 2023. If
these files were updated last year from 2022 to 2023 then I've
updated them this year to 2024.
I'm sure I've probably missed some dates. Feel free to fix them up as
you spot them.
118 lines
3.4 KiB
C
118 lines
3.4 KiB
C
/* Target-dependent, architecture-independent code for DICOS, for GDB.
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Copyright (C) 2009-2024 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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#include "defs.h"
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#include "osabi.h"
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#include "solib.h"
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#include "solib-target.h"
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#include "inferior.h"
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#include "dicos-tdep.h"
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#include "gdbarch.h"
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void
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dicos_init_abi (struct gdbarch *gdbarch)
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{
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set_gdbarch_so_ops (gdbarch, &solib_target_so_ops);
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/* Every process, although has its own address space, sees the same
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list of shared libraries. There's no "main executable" in DICOS,
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so this accounts for all code. */
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set_gdbarch_has_global_solist (gdbarch, 1);
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/* The DICOS breakpoint API takes care of magically making
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breakpoints visible to all inferiors. */
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set_gdbarch_has_global_breakpoints (gdbarch, 1);
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/* There's no (standard definition of) entry point or a guaranteed
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text location with a symbol where to place the call dummy, so we
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need it on the stack. Rely on i386_gdbarch_init used also for
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amd64 to set up ON_STACK inferior calls. */
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/* DICOS rewinds the PC itself. */
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set_gdbarch_decr_pc_after_break (gdbarch, 0);
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}
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/* Return true if ABFD is a dicos load module. HEADER_SIZE is the
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expected size of the "header" section in bytes. */
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int
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dicos_load_module_p (bfd *abfd, int header_size)
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{
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long storage_needed;
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int ret = 0;
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asymbol **symbol_table = NULL;
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const char *symname = "Dicos_loadModuleInfo";
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asection *section;
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/* DICOS files don't have a .note.ABI-tag marker or something
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similar. We do know there's always a "header" section of
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HEADER_SIZE bytes (size depends on architecture), and there's
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always a "Dicos_loadModuleInfo" symbol defined. Look for the
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section first, as that should be cheaper. */
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section = bfd_get_section_by_name (abfd, "header");
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if (!section)
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return 0;
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if (bfd_section_size (section) != header_size)
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return 0;
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/* Dicos LMs always have a "Dicos_loadModuleInfo" symbol
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defined. Look for it. */
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storage_needed = bfd_get_symtab_upper_bound (abfd);
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if (storage_needed < 0)
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{
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warning (_("Can't read elf symbols from %s: %s"),
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bfd_get_filename (abfd),
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bfd_errmsg (bfd_get_error ()));
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return 0;
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}
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if (storage_needed > 0)
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{
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long i, symcount;
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symbol_table = (asymbol **) xmalloc (storage_needed);
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symcount = bfd_canonicalize_symtab (abfd, symbol_table);
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if (symcount < 0)
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warning (_("Can't read elf symbols from %s: %s"),
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bfd_get_filename (abfd),
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bfd_errmsg (bfd_get_error ()));
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else
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{
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for (i = 0; i < symcount; i++)
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{
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asymbol *sym = symbol_table[i];
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if (sym->name != NULL
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&& symname[0] == sym->name[0]
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&& strcmp (symname + 1, sym->name + 1) == 0)
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{
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ret = 1;
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break;
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}
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}
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}
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}
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xfree (symbol_table);
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return ret;
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}
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