*** empty log message ***

[deliverable/binutils-gdb.git] / gdb / mips-tdep.c

diff --git a/gdb/mips-tdep.c b/gdb/mips-tdep.c
index 44e4aeb949918902e5156582aa4f3944a4015a71..54202cab946d3fb662f6c4d10b4dc82c4f372fbf 100644 (file)
--- a/gdb/mips-tdep.c
+++ b/gdb/mips-tdep.c
@@ -199,38 +199,6 @@ struct gdbarch_tdep
   int register_size;
 };
 
-static int
-n32n64_floatformat_always_valid (const struct floatformat *fmt,
-                                 const void *from)
-{
-  return 1;
-}
-
-/* FIXME: brobecker/2004-08-08: Long Double values are 128 bit long.
-   They are implemented as a pair of 64bit doubles where the high
-   part holds the result of the operation rounded to double, and
-   the low double holds the difference between the exact result and
-   the rounded result.  So "high" + "low" contains the result with
-   added precision.  Unfortunately, the floatformat structure used
-   by GDB is not powerful enough to describe this format.  As a temporary
-   measure, we define a 128bit floatformat that only uses the high part.
-   We lose a bit of precision but that's probably the best we can do
-   for now with the current infrastructure.  */
-
-static const struct floatformat floatformat_n32n64_long_double_big =
-{
-  floatformat_big, 128, 0, 1, 11, 1023, 2047, 12, 52,
-  floatformat_intbit_no,
-  "floatformat_n32n64_long_double_big",
-  n32n64_floatformat_always_valid
-};
-
-static const struct floatformat *floatformats_n32n64_long[BFD_ENDIAN_UNKNOWN] =
-{
-  &floatformat_n32n64_long_double_big,
-  &floatformat_n32n64_long_double_big
-};
-
 const struct mips_regnum *
 mips_regnum (struct gdbarch *gdbarch)
 {
@@ -692,14 +660,14 @@ set_mips64_transfers_32bit_regs (char *args, int from_tty,
 /* Convert to/from a register and the corresponding memory value.  */
 
 static int
-mips_convert_register_p (int regnum, struct type *type)
-{
-  return (gdbarch_byte_order (current_gdbarch) == BFD_ENDIAN_BIG
-         && register_size (current_gdbarch, regnum) == 4
-         && (regnum % gdbarch_num_regs (current_gdbarch))
-               >= mips_regnum (current_gdbarch)->fp0
-         && (regnum % gdbarch_num_regs (current_gdbarch))
-               < mips_regnum (current_gdbarch)->fp0 + 32
+mips_convert_register_p (struct gdbarch *gdbarch, int regnum, struct type *type)
+{
+  return (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG
+         && register_size (gdbarch, regnum) == 4
+         && (regnum % gdbarch_num_regs (gdbarch))
+               >= mips_regnum (gdbarch)->fp0
+         && (regnum % gdbarch_num_regs (gdbarch))
+               < mips_regnum (gdbarch)->fp0 + 32
          && TYPE_CODE (type) == TYPE_CODE_FLT && TYPE_LENGTH (type) == 8);
 }
 
@@ -4643,6 +4611,15 @@ static void
 show_mipsfpu_command (char *args, int from_tty)
 {
   char *fpu;
+
+  if (gdbarch_bfd_arch_info (current_gdbarch)->arch != bfd_arch_mips)
+    {
+      printf_unfiltered
+       ("The MIPS floating-point coprocessor is unknown "
+        "because the current architecture is not MIPS.\n");
+      return;
+    }
+
   switch (MIPS_FPU_TYPE)
     {
     case MIPS_FPU_SINGLE:
@@ -5585,7 +5562,7 @@ mips_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
       set_gdbarch_ptr_bit (gdbarch, 32);
       set_gdbarch_long_long_bit (gdbarch, 64);
       set_gdbarch_long_double_bit (gdbarch, 128);
-      set_gdbarch_long_double_format (gdbarch, floatformats_n32n64_long);
+      set_gdbarch_long_double_format (gdbarch, floatformats_ibm_long_double);
       break;
     case MIPS_ABI_N64:
       set_gdbarch_push_dummy_call (gdbarch, mips_n32n64_push_dummy_call);
@@ -5597,7 +5574,7 @@ mips_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
       set_gdbarch_ptr_bit (gdbarch, 64);
       set_gdbarch_long_long_bit (gdbarch, 64);
       set_gdbarch_long_double_bit (gdbarch, 128);
-      set_gdbarch_long_double_format (gdbarch, floatformats_n32n64_long);
+      set_gdbarch_long_double_format (gdbarch, floatformats_ibm_long_double);
       break;
     default:
       internal_error (__FILE__, __LINE__, _("unknown ABI in switch"));