i386-macosx-nat-exec.c [plain text]
#include "defs.h"
#include "frame.h"
#include "inferior.h"
#include "target.h"
#include "symfile.h"
#include "symtab.h"
#include "objfiles.h"
#include "gdbcmd.h"
#include "regcache.h"
#include "gdb_assert.h"
#include "i386-tdep.h"
#include "i387-tdep.h"
#include "gdbarch.h"
#include "i386-macosx-thread-status.h"
#include "i386-macosx-tdep.h"
#include "macosx-nat-mutils.h"
#include "macosx-nat-inferior.h"
extern macosx_inferior_status *macosx_status;
static void
validate_inferior_registers (int regno)
{
int i;
if (regno == -1)
{
for (i = 0; i < NUM_REGS; i++)
{
if (!deprecated_register_valid[i])
fetch_inferior_registers (i);
}
}
else if (!deprecated_register_valid[regno])
{
fetch_inferior_registers (regno);
}
}
static int
i386_sse_regnum_p (struct gdbarch *gdbarch, int regnum)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
#define I387_ST0_REGNUM tdep->st0_regnum
#define I387_NUM_XMM_REGS tdep->num_xmm_regs
if (I387_NUM_XMM_REGS == 0)
return 0;
return (I387_XMM0_REGNUM <= regnum && regnum < I387_MXCSR_REGNUM);
#undef I387_ST0_REGNUM
#undef I387_NUM_XMM_REGS
}
static int
i386_mxcsr_regnum_p (struct gdbarch *gdbarch, int regnum)
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
#define I387_ST0_REGNUM tdep->st0_regnum
#define I387_NUM_XMM_REGS tdep->num_xmm_regs
if (I387_NUM_XMM_REGS == 0)
return 0;
return (regnum == I387_MXCSR_REGNUM);
#undef I387_ST0_REGNUM
#undef I387_NUM_XMM_REGS
}
void
fetch_inferior_registers (int regno)
{
int current_pid;
thread_t current_thread;
current_pid = ptid_get_pid (inferior_ptid);
current_thread = ptid_get_tid (inferior_ptid);
if ((regno == -1) || IS_GP_REGNUM (regno))
{
gdb_i386_thread_state_t gp_regs;
unsigned int gp_count = GDB_i386_THREAD_STATE_COUNT;
kern_return_t ret = thread_get_state
(current_thread, GDB_i386_THREAD_STATE, (thread_state_t) & gp_regs,
&gp_count);
MACH_CHECK_ERROR (ret);
i386_macosx_fetch_gp_registers (&gp_regs);
}
if ((regno == -1) || IS_FP_REGNUM (regno))
{
gdb_i386_thread_fpstate_t fp_regs;
unsigned int fp_count = GDB_i386_THREAD_FPSTATE_COUNT;
kern_return_t ret = thread_get_state
(current_thread, i386_FLOAT_STATE, (thread_state_t) & fp_regs,
&fp_count);
MACH_CHECK_ERROR (ret);
i386_macosx_fetch_fp_registers (&fp_regs);
}
if (regno == -1
|| i386_sse_regnum_p (current_gdbarch, regno)
|| i386_mxcsr_regnum_p (current_gdbarch, regno))
{
supply_register (regno, NULL);
}
}
void
store_inferior_registers (int regno)
{
int current_pid;
thread_t current_thread;
current_pid = ptid_get_pid (inferior_ptid);
current_thread = ptid_get_tid (inferior_ptid);
validate_inferior_registers (regno);
if ((regno == -1) || IS_GP_REGNUM (regno))
{
gdb_i386_thread_state_t gp_regs;
kern_return_t ret;
i386_macosx_store_gp_registers (&gp_regs);
ret = thread_set_state (current_thread, GDB_i386_THREAD_STATE,
(thread_state_t) & gp_regs,
GDB_i386_THREAD_STATE_COUNT);
MACH_CHECK_ERROR (ret);
}
if ((regno == -1) || IS_FP_REGNUM (regno))
{
#if 0
gdb_i386_thread_fpstate_t fp_regs;
kern_return_t ret;
i386_macosx_store_fp_registers (&fp_regs);
ret = thread_set_state (current_thread, GDB_i386_THREAD_FPSTATE,
(thread_state_t) & fp_regs,
GDB_i386_THREAD_FPSTATE_COUNT);
MACH_CHECK_ERROR (ret);
#endif
}
}