#include "defs.h"
#include "arch-utils.h"
#include "gdbcore.h"
#include "osabi.h"
#include "regcache.h"
#include "gdb_assert.h"
#include "i386-tdep.h"
#include "i387-tdep.h"
#include "bsd-uthread.h"
#include "solib-svr4.h"
static int i386fbsd_r_reg_offset[] =
{
9 * 4, 8 * 4, 7 * 4, 6 * 4,
15 * 4, 4 * 4,
3 * 4, 2 * 4,
12 * 4, 14 * 4,
13 * 4, 16 * 4,
1 * 4, 0 * 4, -1, -1
};
CORE_ADDR i386fbsd_sigtramp_start_addr = 0xbfbfdf20;
CORE_ADDR i386fbsd_sigtramp_end_addr = 0xbfbfdff0;
static int i386fbsd_sc_reg_offset[] =
{
8 + 14 * 4,
8 + 13 * 4,
8 + 12 * 4,
8 + 11 * 4,
8 + 0 * 4,
8 + 1 * 4,
8 + 10 * 4,
8 + 9 * 4,
8 + 3 * 4,
8 + 4 * 4,
8 + 7 * 4,
8 + 8 * 4,
8 + 6 * 4,
8 + 5 * 4,
8 + 15 * 4,
8 + 16 * 4
};
static int i386fbsd_jmp_buf_reg_offset[] =
{
-1,
-1,
-1,
1 * 4,
2 * 4,
3 * 4,
4 * 4,
5 * 4,
0 * 4
};
static void
i386fbsd_supply_uthread (struct regcache *regcache,
int regnum, CORE_ADDR addr)
{
char buf[4];
int i;
gdb_assert (regnum >= -1);
for (i = 0; i < ARRAY_SIZE (i386fbsd_jmp_buf_reg_offset); i++)
{
if (i386fbsd_jmp_buf_reg_offset[i] != -1
&& (regnum == -1 || regnum == i))
{
read_memory (addr + i386fbsd_jmp_buf_reg_offset[i], buf, 4);
regcache_raw_supply (regcache, i, buf);
}
}
}
static void
i386fbsd_collect_uthread (const struct regcache *regcache,
int regnum, CORE_ADDR addr)
{
char buf[4];
int i;
gdb_assert (regnum >= -1);
for (i = 0; i < ARRAY_SIZE (i386fbsd_jmp_buf_reg_offset); i++)
{
if (i386fbsd_jmp_buf_reg_offset[i] != -1
&& (regnum == -1 || regnum == i))
{
regcache_raw_collect (regcache, i, buf);
write_memory (addr + i386fbsd_jmp_buf_reg_offset[i], buf, 4);
}
}
}
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->gregset_reg_offset = i386fbsd_r_reg_offset;
tdep->gregset_num_regs = ARRAY_SIZE (i386fbsd_r_reg_offset);
tdep->sizeof_gregset = 18 * 4;
tdep->sizeof_fpregset = 176;
tdep->struct_return = reg_struct_return;
tdep->sigtramp_start = i386fbsd_sigtramp_start_addr;
tdep->sigtramp_end = i386fbsd_sigtramp_end_addr;
tdep->sc_reg_offset = i386fbsd_sc_reg_offset;
tdep->sc_num_regs = ARRAY_SIZE (i386fbsd_sc_reg_offset);
bsd_uthread_set_supply_uthread (gdbarch, i386fbsd_supply_uthread);
bsd_uthread_set_collect_uthread (gdbarch, i386fbsd_collect_uthread);
}
static void
i386fbsd_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
{
i386fbsdaout_init_abi (info, gdbarch);
i386_elf_init_abi (info, gdbarch);
set_solib_svr4_fetch_link_map_offsets
(gdbarch, svr4_ilp32_fetch_link_map_offsets);
}
static int i386fbsd4_r_reg_offset[] =
{
10 * 4, 9 * 4, 8 * 4, 7 * 4,
16 * 4, 5 * 4,
4 * 4, 3 * 4,
13 * 4, 15 * 4,
14 * 4, 17 * 4,
2 * 4, 1 * 4, 0 * 4, 18 * 4
};
int i386fbsd4_sc_reg_offset[] =
{
20 + 11 * 4,
20 + 10 * 4,
20 + 9 * 4,
20 + 8 * 4,
20 + 17 * 4,
20 + 6 * 4,
20 + 5 * 4,
20 + 4 * 4,
20 + 14 * 4,
20 + 16 * 4,
20 + 15 * 4,
20 + 18 * 4,
20 + 3 * 4,
20 + 2 * 4,
20 + 1 * 4,
20 + 0 * 4
};
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->gregset_reg_offset = i386fbsd4_r_reg_offset;
tdep->gregset_num_regs = ARRAY_SIZE (i386fbsd4_r_reg_offset);
tdep->sizeof_gregset = 19 * 4;
tdep->sc_reg_offset = i386fbsd4_sc_reg_offset;
tdep->sc_num_regs = ARRAY_SIZE (i386fbsd4_sc_reg_offset);
}
void _initialize_i386fbsd_tdep (void);
void
_initialize_i386fbsd_tdep (void)
{
gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_FREEBSD_AOUT,
i386fbsdaout_init_abi);
gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_FREEBSD_ELF,
i386fbsd4_init_abi);
}