old-cross-binutils/gdb/i386bsd-tdep.c
Andrew Cagney e8ce19c0cd 2004-10-31 Andrew Cagney <cagney@gnu.org>
* armnbsd-tdep.c (arm_netbsd_aout_init_abi)
	(arm_netbsd_aout_in_solib_call_trampoline): Do not set
	in_solib_call_trampoline, delete corresponding unused function.
	* vaxnbsd-tdep.c (vaxnbsd_aout_in_solib_call_trampoline)
	(vaxnbsd_aout_init_abi): Ditto.
	* sparcnbsd-tdep.c (sparcnbsd_aout_in_solib_call_trampoline)
	(sparc32nbsd_aout_init_abi): Ditto.
	* ppc-linux-tdep.c (ppc64_in_solib_call_trampoline)
	(ppc_linux_init_abi): Ditto.
	* ns32knbsd-tdep.c (ns32knbsd_aout_in_solib_call_trampoline)
	(ns32knbsd_init_abi_aout): Ditto.
	* mips-tdep.c (mips_in_call_stub, mips_gdbarch_init): Ditto.
	* mips-linux-tdep.c (mips_linux_init_abi): Ditto.
	* m68kbsd-tdep.c (m68kbsd_aout_in_solib_call_trampoline)
	(m68kbsd_aout_init_abi): Ditto.
	* i386-cygwin-tdep.c (i386_cygwin_in_solib_call_trampoline)
	(i386_cygwin_init_abi): Ditto.
	* i386bsd-tdep.c (i386bsd_aout_in_solib_call_trampoline)
	(i386bsd_init_abi): Ditto.
2004-10-31 20:24:32 +00:00

125 lines
3.2 KiB
C
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/* Target-dependent code for i386 BSD's.
Copyright 2001, 2002, 2003, 2004 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 "arch-utils.h"
#include "frame.h"
#include "gdbcore.h"
#include "regcache.h"
#include "osabi.h"
#include "gdb_string.h"
#include "i386-tdep.h"
/* Support for signal handlers. */
/* Assuming NEXT_FRAME is for a frame following a BSD sigtramp
routine, return the address of the associated sigcontext structure. */
static CORE_ADDR
i386bsd_sigcontext_addr (struct frame_info *next_frame)
{
char buf[4];
CORE_ADDR sp;
frame_unwind_register (next_frame, I386_ESP_REGNUM, buf);
sp = extract_unsigned_integer (buf, 4);
return read_memory_unsigned_integer (sp + 8, 4);
}
/* Support for shared libraries. */
/* Traditional BSD (4.3 BSD, still used for BSDI and 386BSD). */
/* From <machine/signal.h>. */
int i386bsd_sc_reg_offset[] =
{
-1, /* %eax */
-1, /* %ecx */
-1, /* %edx */
-1, /* %ebx */
8 + 0 * 4, /* %esp */
8 + 1 * 4, /* %ebp */
-1, /* %esi */
-1, /* %edi */
8 + 3 * 4, /* %eip */
8 + 4 * 4, /* %eflags */
-1, /* %cs */
-1, /* %ss */
-1, /* %ds */
-1, /* %es */
-1, /* %fs */
-1 /* %gs */
};
void
i386bsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
tdep->jb_pc_offset = 0;
tdep->sigtramp_start = 0xfdbfdfc0;
tdep->sigtramp_end = 0xfdbfe000;
tdep->sigcontext_addr = i386bsd_sigcontext_addr;
tdep->sc_reg_offset = i386bsd_sc_reg_offset;
tdep->sc_num_regs = ARRAY_SIZE (i386bsd_sc_reg_offset);
}
static enum gdb_osabi
i386bsd_aout_osabi_sniffer (bfd *abfd)
{
if (strcmp (bfd_get_target (abfd), "a.out-i386-netbsd") == 0)
return GDB_OSABI_NETBSD_AOUT;
if (strcmp (bfd_get_target (abfd), "a.out-i386-freebsd") == 0)
return GDB_OSABI_FREEBSD_AOUT;
return GDB_OSABI_UNKNOWN;
}
static enum gdb_osabi
i386bsd_core_osabi_sniffer (bfd *abfd)
{
if (strcmp (bfd_get_target (abfd), "netbsd-core") == 0)
return GDB_OSABI_NETBSD_AOUT;
return GDB_OSABI_UNKNOWN;
}
/* Provide a prototype to silence -Wmissing-prototypes. */
void _initialize_i386bsd_tdep (void);
void
_initialize_i386bsd_tdep (void)
{
gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_aout_flavour,
i386bsd_aout_osabi_sniffer);
/* BFD doesn't set a flavour for NetBSD style a.out core files. */
gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_unknown_flavour,
i386bsd_core_osabi_sniffer);
}