#include "defs.h"
#include "gdbarch.h"
#include "regcache.h"
#include "gdb_assert.h"
#include "gdb_string.h"
#include "i386-tdep.h"
#include "amd64-tdep.h"
int *amd64_native_gregset32_reg_offset;
int amd64_native_gregset32_num_regs = I386_NUM_GREGS;
int *amd64_native_gregset64_reg_offset;
int amd64_native_gregset64_num_regs = AMD64_NUM_GREGS;
static int
amd64_native_gregset_reg_offset (int regnum)
{
int *reg_offset = amd64_native_gregset64_reg_offset;
int num_regs = amd64_native_gregset64_num_regs;
gdb_assert (regnum >= 0);
if (gdbarch_ptr_bit (current_gdbarch) == 32)
{
reg_offset = amd64_native_gregset32_reg_offset;
num_regs = amd64_native_gregset32_num_regs;
}
if (num_regs > NUM_REGS)
num_regs = NUM_REGS;
if (regnum < num_regs && regnum < NUM_REGS)
return reg_offset[regnum];
return -1;
}
int
amd64_native_gregset_supplies_p (int regnum)
{
return (amd64_native_gregset_reg_offset (regnum) != -1);
}
void
amd64_supply_native_gregset (struct regcache *regcache,
const void *gregs, int regnum)
{
const char *regs = gregs;
struct gdbarch *gdbarch = get_regcache_arch (regcache);
int num_regs = amd64_native_gregset64_num_regs;
int i;
if (gdbarch_ptr_bit (gdbarch) == 32)
num_regs = amd64_native_gregset32_num_regs;
if (num_regs > NUM_REGS)
num_regs = NUM_REGS;
for (i = 0; i < num_regs; i++)
{
if (regnum == -1 || regnum == i)
{
int offset = amd64_native_gregset_reg_offset (i);
if (offset != -1)
regcache_raw_supply (regcache, i, regs + offset);
}
}
}
void
amd64_collect_native_gregset (const struct regcache *regcache,
void *gregs, int regnum)
{
char *regs = gregs;
struct gdbarch *gdbarch = get_regcache_arch (regcache);
int num_regs = amd64_native_gregset64_num_regs;
int i;
if (gdbarch_ptr_bit (gdbarch) == 32)
{
num_regs = amd64_native_gregset32_num_regs;
for (i = 0; i <= I386_EIP_REGNUM; i++)
{
if (regnum == -1 || regnum == i)
memset (regs + amd64_native_gregset_reg_offset (i), 0, 8);
}
for (i = I386_CS_REGNUM; i <= I386_GS_REGNUM; i++)
{
if (regnum == -1 || regnum == i)
memset (regs + amd64_native_gregset_reg_offset (i), 0, 8);
}
}
if (num_regs > NUM_REGS)
num_regs = NUM_REGS;
for (i = 0; i < num_regs; i++)
{
if (regnum == -1 || regnum == i)
{
int offset = amd64_native_gregset_reg_offset (i);
if (offset != -1)
regcache_raw_collect (regcache, i, regs + offset);
}
}
}