old-cross-binutils/gdb/i386bsd-tdep.c
Mark Kettenis 911bc6ee3f * amd64-tdep.c (amd64_sigtramp_frame_sniffer): Rewrite to use new
sigtramp_p member of `struct gdbarch_tdep'.  Also check whether
the program counter is in the range specified by `struct
gdbarch_tdep'.
* amd64-linux-tdep.c: Include "symtab.h".
(amd64_linux_pc_in_sigtramp): Remove function.
(amd64_linux_sigtramp_p): New function.
(amd64_linux_init_abi): Initialize TDEP->sigtramp_p.  Don't set
deprecated_pc_in_sigtramp.
* amd64nbsd-tdep.c: Include "symtab.h".
(amd64nbsd_sigtramp_p): New function.
(amd64nbsd_init_abi): Initialize TDEP->sigtramp_p.  Don't set
deprecated_pc_in_sigtramp.
* amd64obsd-tdep.c: Include "symtab.h" and "objfiles.h".  Add a
few comments.
(amd64obsd_pc_in_sigtramp): Remove function.
(amd64obsd_sigtramp_p): New function.
(amd64obsd_init_abi): Initialize TDEP->sigtramp_p.  Don't set
deprecated_pc_in_sigtramp.
* i386-tdep.h (struct gdbarch_tdep): Add sigtramp_p member.
(i386bsd_pc_ins_sigtramp): Remove prototype.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): Remove prototypes.
* i386-tdep.c (i386_sigtramp_frame_sniffer): Rewrite to use new
sigtramp_p member of `struct gdbarch_tdep'.  Also check whether
the program counter is in the range specified by `struct
gdbarch_tdep'.
(i386_pc_in_sigtramp, i386_svr4_pc_in_sigtramp): Remove functions.
(i386_sigtramp_p, i386_svr4_sigtramp_p): New functions.
(i386_go32_pc_in_sigtramp): Remove function.
(i386_svr4_init_abi): Don't set deprecated_pc_in_sigtramp.
Initialize TDEP->sigtramp_p.
(i386_go32_init_abi): Initialize TDEP->sigtramp_p to NULL.
(i386_gdbarch_init): Initialize TDEP->sigtramp_p.  Don't set
deprecated_pc_in_sigtramp.
* i386-linux-tdep.c: Adjust comments.
(i386_linux_pc_in_sigtramp): Remove function.
(i386_linux_sigtramp_p): New function.
(i386_linux_init_abi): Initialize TDEP->sigtramp_p.  Don't set
deprecated_pc_in_sigtramp.
* i386-nto-tdep.c: Update copyright year.
(i386nto_pc_in_sigtramp): Remove function.
(i386nto_sigtramp_p): New function.
(i386nto_sigcontext_addr): Use I386_ESP_REGNUM instead of
SP_REGNUM.
(i386nto_init_abi): Initialize TDEP->sigtramp_p.  Don't set
deprecated_pc_in_sigtramp.
* i386-sol2-tdep.c: Update copyright year.
(i386_sol2_pc_in_sigtramp): Remove function.
(i386_sol2_sigtramp_p): New function.
(i386_sol2_init_abi): Initialize TDEP->sigtramp_p.  Don't set
deprecated_pc_in_sigtramp.
* i386bsd-tdep.c (i386bsd_pc_in_sigtramp): Remove function.
(i386bsd_sigtramp_start, i386bsd_sigtramp_end): Remove functions.
(i386bsd_init_abi): Don't set deprecated_pc_in_sigtramp,
deprecated_sigtramp_start and deprecated_sigtramp_end.
* i386nbsd-tdep.c: Include "frame.h" and "symtab.h".
(i386nbsd_pc_in_sigtramp): Remove function.
(i386nbsd_sigtramp_p): New function.
(i386nbsd_init_abi): Don't set deprecated_pc_in_sigtramp,
deprecated_sigtramp_start, deprecated_sigtramp_end.  Initialize
TDEP->sigtramp_start, TDEP->sigtramp_end and TDEP->sigtramp_p.
* i386obsd-tdep.c: Include "frame.h", "symtab.h" and "objfiles.h".
(i386obsd_pc_in_sigtramp): Remove function.
(i386obsd_sigtramp_p): New function.
(i386obsd_sigtramp_start, i386obsd_sigtramp_end): Remove
functions.
(i386bsd_init_abi): Don't set deprecated_pc_in_sigtramp,
deprecated_sigtramp_start, deprecated_sigtramp_end.  Initialize
TDEP->sigtramp_p.
* Makefile.in (amd64-linux-tdep.o, amd64nbsd-tdep.o,
amd64obsd-tdep.o, i386nbsd-tdep.o, i386obsd-tdep.o): Update
dependencies.
2004-04-09 16:28:50 +00:00

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/* 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. */
/* Return non-zero if we are in a shared library trampoline code stub. */
int
i386bsd_aout_in_solib_call_trampoline (CORE_ADDR pc, char *name)
{
return (name && !strcmp (name, "_DYNAMIC"));
}
/* 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);
/* Assume SunOS-style shared libraries. */
set_gdbarch_in_solib_call_trampoline (gdbarch,
i386bsd_aout_in_solib_call_trampoline);
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);
}