void
darwin_check_osabi (darwin_inferior *inf, thread_t thread)
{
if (gdbarch_osabi (target_gdbarch) == GDB_OSABI_UNKNOWN)
{
/* Attaching to a process. Let's figure out what kind it is. */
x86_thread_state_t gp_regs;
struct gdbarch_info info;
unsigned int gp_count = x86_THREAD_STATE_COUNT;
kern_return_t ret;
ret = thread_get_state (thread, x86_THREAD_STATE,
(thread_state_t) &gp_regs, &gp_count);
if (ret != KERN_SUCCESS)
{
MACH_CHECK_ERROR (ret);
return;
}
gdbarch_info_init (&info);
gdbarch_info_fill (&info);
info.byte_order = gdbarch_byte_order (target_gdbarch);
info.osabi = GDB_OSABI_DARWIN;
if (gp_regs.tsh.flavor == x86_THREAD_STATE64)
info.bfd_arch_info = bfd_lookup_arch (bfd_arch_i386,
bfd_mach_x86_64);
else
info.bfd_arch_info = bfd_lookup_arch (bfd_arch_i386,
bfd_mach_i386_i386);
gdbarch_update_p (info);
}
}
void
fetch_inferior_registers (int regno)
{
int current_pid;
thread_t current_thread;
int fetched = 0;
current_pid = ptid_get_pid (inferior_ptid);
current_thread = ptid_get_tid (inferior_ptid);
/* ifdef the following code so that gdb doesn't send the new
GDB_x86_THREAD_STATE constant when built on an older x86 MacOS X 10.4
system that won't recognize it. In Leopard this is unnecessary. */
if (TARGET_OSABI == GDB_OSABI_UNKNOWN)
{
/* Attaching to a process. Let's figure out what kind it is. */
gdb_x86_thread_state_t gp_regs;
struct gdbarch_info info;
unsigned int gp_count = GDB_x86_THREAD_STATE_COUNT;
kern_return_t ret = thread_get_state
(current_thread, GDB_x86_THREAD_STATE, (thread_state_t) & gp_regs,
&gp_count);
if (ret != KERN_SUCCESS)
{
printf_unfiltered ("Error calling thread_get_state for GP registers for thread 0x%x\n", (int) current_thread);
MACH_CHECK_ERROR (ret);
}
gdbarch_info_init (&info);
gdbarch_info_fill (current_gdbarch, &info);
info.byte_order = gdbarch_byte_order (current_gdbarch);
if (gp_regs.tsh.flavor == GDB_x86_THREAD_STATE64)
{
info.osabi = GDB_OSABI_DARWIN64;
info.bfd_arch_info = bfd_lookup_arch (bfd_arch_i386, bfd_mach_x86_64);
}
else
{
info.osabi = GDB_OSABI_DARWIN;
info.bfd_arch_info = bfd_lookup_arch (bfd_arch_i386,
bfd_mach_i386_i386);
}
gdbarch_update_p (info);
}
if (TARGET_OSABI == GDB_OSABI_DARWIN64)
{
if ((regno == -1) || IS_GP_REGNUM_64 (regno))
{
gdb_x86_thread_state_t gp_regs;
unsigned int gp_count = GDB_x86_THREAD_STATE_COUNT;
kern_return_t ret = thread_get_state
(current_thread, GDB_x86_THREAD_STATE, (thread_state_t) & gp_regs,
&gp_count);
if (ret != KERN_SUCCESS)
{
printf_unfiltered ("Error calling thread_get_state for GP registers for thread 0x%x\n", (int) current_thread);
MACH_CHECK_ERROR (ret);
}
x86_64_macosx_fetch_gp_registers (&gp_regs.uts.ts64);
fetched++;
}
if ((regno == -1)
|| IS_FP_REGNUM_64 (regno)
|| IS_VP_REGNUM_64 (regno)
|| regno == REGS_64_MXCSR)
{
gdb_x86_float_state_t fp_regs;
unsigned int fp_count = GDB_x86_FLOAT_STATE_COUNT;
kern_return_t ret = thread_get_state
(current_thread, GDB_x86_FLOAT_STATE, (thread_state_t) & fp_regs,
&fp_count);
if (ret != KERN_SUCCESS)
{
printf_unfiltered ("Error calling thread_get_state for float registers for thread 0x%x\n", (int) current_thread);
MACH_CHECK_ERROR (ret);
}
x86_64_macosx_fetch_fp_registers (&fp_regs.ufs.fs64);
fetched++;
}
}
else
{
if ((regno == -1) || IS_GP_REGNUM (regno))
{
gdb_x86_thread_state_t gp_regs;
unsigned int gp_count = GDB_x86_THREAD_STATE_COUNT;
kern_return_t ret = thread_get_state
(current_thread, GDB_x86_THREAD_STATE, (thread_state_t) & gp_regs,
&gp_count);
if (ret != KERN_SUCCESS)
{
printf_unfiltered ("Error calling thread_get_state for GP registers for thread 0x%x\n", (int) current_thread);
MACH_CHECK_ERROR (ret);
}
i386_macosx_fetch_gp_registers (&(gp_regs.uts.ts32));
fetched++;
}
if ((regno == -1)
|| IS_FP_REGNUM (regno)
|| i386_sse_regnum_p (current_gdbarch, regno)
|| i386_mxcsr_regnum_p (current_gdbarch, regno))
{
gdb_i386_float_state_t fp_regs;
unsigned int fp_count = GDB_i386_FLOAT_STATE_COUNT;
kern_return_t ret = thread_get_state
(current_thread, GDB_i386_FLOAT_STATE, (thread_state_t) & fp_regs,
&fp_count);
if (ret != KERN_SUCCESS)
{
printf_unfiltered ("Error calling thread_get_state for float registers for thread 0x%x\n", (int) current_thread);
MACH_CHECK_ERROR (ret);
}
i386_macosx_fetch_fp_registers (&fp_regs);
fetched++;
}
}
if (! fetched)
{
warning ("unknown register %d", regno);
regcache_raw_supply (current_regcache, regno, NULL);
}
}