96 lines
2.8 KiB
C
96 lines
2.8 KiB
C
/* Target-dependent code for the MIPS architecture running on IRIX,
|
|
for GDB, the GNU Debugger.
|
|
|
|
Copyright 2002 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 2 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, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
#include "defs.h"
|
|
#include "osabi.h"
|
|
|
|
#include "elf-bfd.h"
|
|
|
|
static void
|
|
mips_irix_elf_osabi_sniff_abi_tag_sections (bfd *abfd, asection *sect,
|
|
void *obj)
|
|
{
|
|
enum gdb_osabi *os_ident_ptr = obj;
|
|
const char *name;
|
|
unsigned int sectsize;
|
|
|
|
name = bfd_get_section_name (abfd, sect);
|
|
sectsize = bfd_section_size (abfd, sect);
|
|
|
|
if (strncmp (name, ".MIPS.", 6) == 0 && sectsize > 0)
|
|
{
|
|
/* The presence of a section named with a ".MIPS." prefix is
|
|
indicative of an IRIX binary. */
|
|
*os_ident_ptr = GDB_OSABI_IRIX;
|
|
}
|
|
}
|
|
|
|
static enum gdb_osabi
|
|
mips_irix_elf_osabi_sniffer (bfd *abfd)
|
|
{
|
|
unsigned int elfosabi;
|
|
enum gdb_osabi osabi = GDB_OSABI_UNKNOWN;
|
|
|
|
/* If the generic sniffer gets a hit, return and let other sniffers
|
|
get a crack at it. */
|
|
bfd_map_over_sections (abfd,
|
|
generic_elf_osabi_sniff_abi_tag_sections,
|
|
&osabi);
|
|
if (osabi != GDB_OSABI_UNKNOWN)
|
|
return GDB_OSABI_UNKNOWN;
|
|
|
|
elfosabi = elf_elfheader (abfd)->e_ident[EI_OSABI];
|
|
|
|
if (elfosabi == ELFOSABI_NONE)
|
|
{
|
|
/* When elfosabi is ELFOSABI_NONE (0), then the ELF structures in the
|
|
file are conforming to the base specification for that machine
|
|
(there are no OS-specific extensions). In order to determine the
|
|
real OS in use we must look for OS notes that have been added.
|
|
|
|
For IRIX, we simply look for sections named with .MIPS. as
|
|
prefixes. */
|
|
bfd_map_over_sections (abfd,
|
|
mips_irix_elf_osabi_sniff_abi_tag_sections,
|
|
&osabi);
|
|
}
|
|
return osabi;
|
|
}
|
|
|
|
static void
|
|
mips_irix_init_abi (struct gdbarch_info info,
|
|
struct gdbarch *gdbarch)
|
|
{
|
|
}
|
|
|
|
void
|
|
_initialize_mips_irix_tdep (void)
|
|
{
|
|
/* Register an ELF OS ABI sniffer for IRIX binaries. */
|
|
gdbarch_register_osabi_sniffer (bfd_arch_mips,
|
|
bfd_target_elf_flavour,
|
|
mips_irix_elf_osabi_sniffer);
|
|
|
|
gdbarch_register_osabi (bfd_arch_mips, 0, GDB_OSABI_IRIX,
|
|
mips_irix_init_abi);
|
|
}
|