[COMMIT] Properly handle floating-point registers on OpenBSD/mips64

Mark Kettenis kettenis@gnu.org
Sun Nov 7 17:09:00 GMT 2004


This makes sure they end up at the right spot in the register cache.

Committed,

Mark

Index: ChangeLog
from  Mark Kettenis  <kettenis@gnu.org>
 
	* mips64obsd-nat.c: Include "mips-tdep.h".
	(MIPS64OBSD_NUM_REGS): Remove define.
	(MIPS_PC_REGNUM, MIPS_FP0_REGNUM, MIPS_FSR_REGNUM): New defines.
	(mips64obsd_supply_gregset, mips64obsd_collect_gregset): Handle
	floating-point registers correctly.
	* Makefile.in (mips64obsd-nat.o): Update dependencies.

Index: Makefile.in
===================================================================
RCS file: /cvs/src/src/gdb/Makefile.in,v
retrieving revision 1.656
diff -u -p -r1.656 Makefile.in
--- Makefile.in 7 Nov 2004 17:02:43 -0000 1.656
+++ Makefile.in 7 Nov 2004 17:06:15 -0000
@@ -2236,7 +2236,7 @@ mem-break.o: mem-break.c $(defs_h) $(sym
 minsyms.o: minsyms.c $(defs_h) $(gdb_string_h) $(symtab_h) $(bfd_h) \
 	$(symfile_h) $(objfiles_h) $(demangle_h) $(value_h) $(cp_abi_h)
 mips64obsd-nat.o: mips64obsd-nat.c $(defs_h) $(inferior_h) $(regcache_h) \
-	$(target_h) $(inf_ptrace_h)
+	$(target_h) $(mips_tdep_h) $(inf_ptrace_h)
 mips64obsd-tdep.o: mips64obsd-tdep.c $(defs_h) $(osabi_h) $(regcache_h) \
 	$(regset_h) $(trad_frame_h) $(tramp_frame_h) $gdb_assert_h) \
 	$(gdb_string_h) $(mips_tdep_h) $(solib_svr4_h)
Index: mips64obsd-nat.c
===================================================================
RCS file: /cvs/src/src/gdb/mips64obsd-nat.c,v
retrieving revision 1.1
diff -u -p -r1.1 mips64obsd-nat.c
--- mips64obsd-nat.c 23 Oct 2004 12:14:01 -0000 1.1
+++ mips64obsd-nat.c 7 Nov 2004 17:06:15 -0000
@@ -28,9 +28,13 @@
 #include <sys/ptrace.h>
 #include <machine/reg.h>
 
+#include "mips-tdep.h"
 #include "inf-ptrace.h"
 
-#define MIPS64OBSD_NUM_REGS 73
+/* Shorthand for some register numbers used below.  */
+#define MIPS_PC_REGNUM	MIPS_EMBED_PC_REGNUM
+#define MIPS_FP0_REGNUM	MIPS_EMBED_FP0_REGNUM
+#define MIPS_FSR_REGNUM MIPS_EMBED_FP0_REGNUM + 32
 
 /* Supply the general-purpose registers stored in GREGS to REGCACHE.  */
 
@@ -40,8 +44,11 @@ mips64obsd_supply_gregset (struct regcac
   const char *regs = gregs;
   int regnum;
 
-  for (regnum = 0; regnum < MIPS64OBSD_NUM_REGS; regnum++)
+  for (regnum = MIPS_ZERO_REGNUM; regnum <= MIPS_PC_REGNUM; regnum++)
     regcache_raw_supply (regcache, regnum, regs + regnum * 8);
+
+  for (regnum = MIPS_FP0_REGNUM; regnum <= MIPS_FSR_REGNUM; regnum++)
+    regcache_raw_supply (regcache, regnum, regs + (regnum + 2) * 8);
 }
 
 /* Collect the general-purpose registers from REGCACHE and store them
@@ -54,11 +61,17 @@ mips64obsd_collect_gregset (const struct
   char *regs = gregs;
   int i;
 
-  for (i = 0; i <= MIPS64OBSD_NUM_REGS; i++)
+  for (i = MIPS_ZERO_REGNUM; i <= MIPS_PC_REGNUM; i++)
     {
       if (regnum == -1 || regnum == i)
 	regcache_raw_collect (regcache, i, regs + i * 8);
     }
+
+  for (i = MIPS_FP0_REGNUM; i <= MIPS_FSR_REGNUM; i++)
+    {
+      if (regnum == -1 || regnum == i)
+	regcache_raw_collect (regcache, i, regs + (i + 2) * 8);
+    }
 }
 
 



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