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binutils-gdb/gdb/dicos-tdep.c
Joel Brobecker 61baf725ec update copyright year range in GDB files
This applies the second part of GDB's End of Year Procedure, which
updates the copyright year range in all of GDB's files.

gdb/ChangeLog:

        Update copyright year range in all GDB files.
2017-01-01 10:52:34 +04:00

117 lines
3.4 KiB
C

/* Target-dependent, architecture-independent code for DICOS, for GDB.
Copyright (C) 2009-2017 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 "osabi.h"
#include "solib.h"
#include "solib-target.h"
#include "inferior.h"
#include "dicos-tdep.h"
void
dicos_init_abi (struct gdbarch *gdbarch)
{
set_solib_ops (gdbarch, &solib_target_so_ops);
/* Every process, although has its own address space, sees the same
list of shared libraries. There's no "main executable" in DICOS,
so this accounts for all code. */
set_gdbarch_has_global_solist (gdbarch, 1);
/* The DICOS breakpoint API takes care of magically making
breakpoints visible to all inferiors. */
set_gdbarch_has_global_breakpoints (gdbarch, 1);
/* There's no (standard definition of) entry point or a guaranteed
text location with a symbol where to place the call dummy, so we
need it on the stack. Rely on i386_gdbarch_init used also for
amd64 to set up ON_STACK inferior calls. */
/* DICOS rewinds the PC itself. */
set_gdbarch_decr_pc_after_break (gdbarch, 0);
}
/* Return true if ABFD is a dicos load module. HEADER_SIZE is the
expected size of the "header" section in bytes. */
int
dicos_load_module_p (bfd *abfd, int header_size)
{
long storage_needed;
int ret = 0;
asymbol **symbol_table = NULL;
const char *symname = "Dicos_loadModuleInfo";
asection *section;
/* DICOS files don't have a .note.ABI-tag marker or something
similar. We do know there's always a "header" section of
HEADER_SIZE bytes (size depends on architecture), and there's
always a "Dicos_loadModuleInfo" symbol defined. Look for the
section first, as that should be cheaper. */
section = bfd_get_section_by_name (abfd, "header");
if (!section)
return 0;
if (bfd_section_size (abfd, section) != header_size)
return 0;
/* Dicos LMs always have a "Dicos_loadModuleInfo" symbol
defined. Look for it. */
storage_needed = bfd_get_symtab_upper_bound (abfd);
if (storage_needed < 0)
{
warning (_("Can't read elf symbols from %s: %s"),
bfd_get_filename (abfd),
bfd_errmsg (bfd_get_error ()));
return 0;
}
if (storage_needed > 0)
{
long i, symcount;
symbol_table = (asymbol **) xmalloc (storage_needed);
symcount = bfd_canonicalize_symtab (abfd, symbol_table);
if (symcount < 0)
warning (_("Can't read elf symbols from %s: %s"),
bfd_get_filename (abfd),
bfd_errmsg (bfd_get_error ()));
else
{
for (i = 0; i < symcount; i++)
{
asymbol *sym = symbol_table[i];
if (sym->name != NULL
&& symname[0] == sym->name[0]
&& strcmp (symname + 1, sym->name + 1) == 0)
{
ret = 1;
break;
}
}
}
}
xfree (symbol_table);
return ret;
}