#include "defs.h"
#include "arch-utils.h"
#include "frame.h"
#include "gdbcore.h"
#include "regcache.h"
#include "gdb_string.h"
#include "i386-tdep.h"
static int
i386bsd_pc_in_sigtramp (CORE_ADDR pc, char *name)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
return (pc >= tdep->sigtramp_start && pc < tdep->sigtramp_end);
}
CORE_ADDR
i386bsd_sigcontext_addr (struct frame_info *frame)
{
if (frame->next)
return read_memory_unsigned_integer (frame->next->frame + 16, 4);
return read_memory_unsigned_integer (read_register (SP_REGNUM) + 8, 4);
}
CORE_ADDR
i386bsd_sigtramp_start (CORE_ADDR pc)
{
return gdbarch_tdep (current_gdbarch)->sigtramp_start;
}
CORE_ADDR
i386bsd_sigtramp_end (CORE_ADDR pc)
{
return gdbarch_tdep (current_gdbarch)->sigtramp_end;
}
int
i386bsd_aout_in_solib_call_trampoline (CORE_ADDR pc, char *name)
{
return (name && !strcmp (name, "_DYNAMIC"));
}
int i386bsd_sc_pc_offset = 20;
int i386bsd_sc_sp_offset = 8;
void
i386bsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
set_gdbarch_pc_in_sigtramp (gdbarch, i386bsd_pc_in_sigtramp);
set_gdbarch_sigtramp_start (gdbarch, i386bsd_sigtramp_start);
set_gdbarch_sigtramp_end (gdbarch, i386bsd_sigtramp_end);
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_pc_offset = i386bsd_sc_pc_offset;
tdep->sc_sp_offset = i386bsd_sc_sp_offset;
}
CORE_ADDR i386fbsd_sigtramp_start = 0xbfbfdf20;
CORE_ADDR i386fbsd_sigtramp_end = 0xbfbfdff0;
static void
i386fbsdaout_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
i386bsd_init_abi (info, gdbarch);
tdep->struct_return = reg_struct_return;
tdep->sigtramp_start = i386fbsd_sigtramp_start;
tdep->sigtramp_end = i386fbsd_sigtramp_end;
}
static void
i386fbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
i386fbsdaout_init_abi (info, gdbarch);
i386_elf_init_abi (info, gdbarch);
set_gdbarch_in_solib_call_trampoline (gdbarch,
generic_in_solib_call_trampoline);
}
int i386fbsd4_sc_pc_offset = 76;
int i386fbsd4_sc_sp_offset = 88;
static void
i386fbsd4_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
i386fbsd_init_abi (info, gdbarch);
tdep->sc_pc_offset = i386fbsd4_sc_pc_offset;
tdep->sc_sp_offset = i386fbsd4_sc_sp_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;
}
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);
gdbarch_register_osabi (bfd_arch_i386, GDB_OSABI_FREEBSD_AOUT,
i386fbsdaout_init_abi);
gdbarch_register_osabi (bfd_arch_i386, GDB_OSABI_FREEBSD_ELF,
i386fbsd4_init_abi);
}