int
mips_linux_restart_reg_p (struct gdbarch *gdbarch)
{
/* If we do not have a target description with registers, then
MIPS_RESTART_REGNUM will not be included in the register set. */
if (!tdesc_has_registers (gdbarch_target_desc (gdbarch)))
return 0;
/* If we do, then MIPS_RESTART_REGNUM is safe to check; it will
either be GPR-sized or missing. */
return register_size (gdbarch, MIPS_RESTART_REGNUM) > 0;
}
/* Return 1 if PPC_ORIG_R3_REGNUM and PPC_TRAP_REGNUM are usable. */
int
ppc_linux_trap_reg_p (struct gdbarch *gdbarch)
{
/* If we do not have a target description with registers, then
the special registers will not be included in the register set. */
if (!tdesc_has_registers (gdbarch_target_desc (gdbarch)))
return 0;
/* If we do, then it is safe to check the size. */
return register_size (gdbarch, PPC_ORIG_R3_REGNUM) > 0
&& register_size (gdbarch, PPC_TRAP_REGNUM) > 0;
}
static const char *
tic6x_register_name (struct gdbarch *gdbarch, int regno)
{
if (regno < 0)
return NULL;
if (tdesc_has_registers (gdbarch_target_desc (gdbarch)))
return tdesc_register_name (gdbarch, regno);
else if (regno >= ARRAY_SIZE (tic6x_register_names))
return "";
else
return tic6x_register_names[regno];
}
static struct type *
nios2_register_type (struct gdbarch *gdbarch, int regno)
{
/* If the XML description has register information, use that to
determine the register type. */
if (tdesc_has_registers (gdbarch_target_desc (gdbarch)))
return tdesc_register_type (gdbarch, regno);
if (regno == NIOS2_PC_REGNUM)
return builtin_type (gdbarch)->builtin_func_ptr;
else if (regno == NIOS2_SP_REGNUM)
return builtin_type (gdbarch)->builtin_data_ptr;
else
return builtin_type (gdbarch)->builtin_uint32;
}