[PATCH/SPARC] Fix long double problems

[Mark Kettenis <kettenis at chello dot nl>]

This makes sure long double works correctly on those SPARC targets
where a long double really is a long double (and not the same as an
ordinary double).  Committed to the branch.


Index: ChangeLog
from  Mark Kettenis  <kettenis@gnu.org>
 
	* sparc-tdep.c: Include "floatformat.h".
	(floatformat_sparc_quad): New define.
	(sparc32_gdbarch_init): Set long_double_format to
	&floatformat_sparc_quad.
	* sparc-linux-tdep.c: Include "floatformat.h".
	(sparc32_linux_init_abi): Set long_double_format to
	&floatformat_ieee_double_big.
	* sparcnbsd-tdep.c: Likewise.

Index: sparc-linux-tdep.c
===================================================================
RCS file: /cvs/src/src/gdb/Attic/sparc-linux-tdep.c,v
retrieving revision 1.1.2.6
diff -u -p -r1.1.2.6 sparc-linux-tdep.c
--- sparc-linux-tdep.c 21 Dec 2003 23:13:59 -0000 1.1.2.6
+++ sparc-linux-tdep.c 31 Dec 2003 20:41:59 -0000
@@ -20,6 +20,7 @@
    Boston, MA 02111-1307, USA.  */
 
 #include "defs.h"
+#include "floatformat.h"
 #include "frame.h"
 #include "frame-base.h"
 #include "frame-unwind.h"
@@ -291,6 +292,7 @@ sparc32_linux_init_abi (struct gdbarch_i
 
   /* GNU/Linux doesn't support the 128-bit `long double' from the psABI.  */
   set_gdbarch_long_double_bit (gdbarch, 64);
+  set_gdbarch_long_double_format (gdbarch, &floatformat_ieee_double_big);
 
   set_gdbarch_pc_in_sigtramp (gdbarch, sparc32_linux_pc_in_sigtramp);
   frame_unwind_append_sniffer (gdbarch, sparc32_linux_sigtramp_frame_sniffer);
Index: sparc-tdep.c
===================================================================
RCS file: /cvs/src/src/gdb/sparc-tdep.c,v
retrieving revision 1.127.2.10
diff -u -p -r1.127.2.10 sparc-tdep.c
--- sparc-tdep.c 31 Dec 2003 20:20:07 -0000 1.127.2.10
+++ sparc-tdep.c 31 Dec 2003 20:42:00 -0000
@@ -22,6 +22,7 @@
 #include "defs.h"
 #include "arch-utils.h"
 #include "dis-asm.h"
+#include "floatformat.h"
 #include "frame.h"
 #include "frame-base.h"
 #include "frame-unwind.h"
@@ -60,6 +61,10 @@
    code that can handle both.  The 64-bit specific code lives in
    sparc64-tdep.c; don't add any here.  */
 
+/* The SPARC Floating-Point Quad-Precision format is similar to
+   big-endian IA-64 Quad-recision format.  */
+#define floatformat_sparc_quad floatformat_ia64_quad_big
+
 /* The stack pointer is offset from the stack frame by a BIAS of 2047
    (0x7ff) for 64-bit code.  BIAS is likely to be defined on SPARC
    hosts, so undefine it first.  */
@@ -1020,6 +1025,7 @@ sparc32_gdbarch_init (struct gdbarch_inf
   tdep->plt_entry_size = 0;
 
   set_gdbarch_long_double_bit (gdbarch, 128);
+  set_gdbarch_long_double_format (gdbarch, &floatformat_sparc_quad);
 
   set_gdbarch_num_regs (gdbarch, SPARC32_NUM_REGS);
   set_gdbarch_register_name (gdbarch, sparc32_register_name);
Index: sparcnbsd-tdep.c
===================================================================
RCS file: /cvs/src/src/gdb/sparcnbsd-tdep.c,v
retrieving revision 1.7.2.4
diff -u -p -r1.7.2.4 sparcnbsd-tdep.c
--- sparcnbsd-tdep.c 29 Dec 2003 17:26:51 -0000 1.7.2.4
+++ sparcnbsd-tdep.c 31 Dec 2003 20:42:00 -0000
@@ -21,6 +21,7 @@
    Boston, MA 02111-1307, USA.  */
 
 #include "defs.h"
+#include "floatformat.h"
 #include "frame.h"
 #include "frame-unwind.h"
 #include "gdbcore.h"
@@ -265,6 +266,7 @@ sparc32nbsd_init_abi (struct gdbarch_inf
 {
   /* NetBSD doesn't support the 128-bit `long double' from the psABI.  */
   set_gdbarch_long_double_bit (gdbarch, 64);
+  set_gdbarch_long_double_format (gdbarch, &floatformat_ieee_double_big);
 
   set_gdbarch_pc_in_sigtramp (gdbarch, sparc32nbsd_pc_in_sigtramp);
   frame_unwind_append_sniffer (gdbarch, sparc32nbsd_sigtramp_frame_sniffer);