Module Name:    src
Committed By:   skrll
Date:           Sat Nov  3 15:06:55 UTC 2012

Modified Files:
        src/external/gpl3/gdb/dist/gdb: mipsnbsd-tdep.c

Log Message:
Supply MIPS_ZERO_REGNUM and MIPS_UNUSED_REGNUM (as zero). Idea stolen from
mips-linux-tdep.c


To generate a diff of this commit:
cvs rdiff -u -r1.1.1.1 -r1.2 src/external/gpl3/gdb/dist/gdb/mipsnbsd-tdep.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/external/gpl3/gdb/dist/gdb/mipsnbsd-tdep.c
diff -u src/external/gpl3/gdb/dist/gdb/mipsnbsd-tdep.c:1.1.1.1 src/external/gpl3/gdb/dist/gdb/mipsnbsd-tdep.c:1.2
--- src/external/gpl3/gdb/dist/gdb/mipsnbsd-tdep.c:1.1.1.1	Sat Sep 24 20:11:33 2011
+++ src/external/gpl3/gdb/dist/gdb/mipsnbsd-tdep.c	Sat Nov  3 15:06:55 2012
@@ -83,15 +83,23 @@ mipsnbsd_supply_gregset (const struct re
 			 const void *gregs, size_t len)
 {
   size_t regsize = mips_isa_regsize (get_regcache_arch (regcache));
+  char zerobuf[MAX_REGISTER_SIZE];
   const char *regs = gregs;
   int i;
 
+  memset (zerobuf, 0, MAX_REGISTER_SIZE);
+
   gdb_assert (len >= MIPSNBSD_NUM_GREGS * regsize);
 
   for (i = 0; i <= MIPS_PC_REGNUM; i++)
     {
       if (regnum == i || regnum == -1)
-	regcache_raw_supply (regcache, i, regs + i * regsize);
+        {
+          if (i == MIPS_ZERO_REGNUM || i == MIPS_UNUSED_REGNUM)
+            regcache_raw_supply (regcache, i, zerobuf);
+          else
+	    regcache_raw_supply (regcache, i, regs + i * regsize);
+	}
     }
 
   if (len >= (MIPSNBSD_NUM_GREGS + MIPSNBSD_NUM_FPREGS) * regsize)
@@ -144,13 +152,18 @@ void
 mipsnbsd_supply_reg (struct regcache *regcache, const char *regs, int regno)
 {
   struct gdbarch *gdbarch = get_regcache_arch (regcache);
+  char zerobuf[MAX_REGISTER_SIZE];
   int i;
 
+  memset (zerobuf, 0, MAX_REGISTER_SIZE);
+
   for (i = 0; i <= gdbarch_pc_regnum (gdbarch); i++)
     {
       if (regno == i || regno == -1)
 	{
-	  if (gdbarch_cannot_fetch_register (gdbarch, i))
+          if (i == MIPS_ZERO_REGNUM || i == MIPS_UNUSED_REGNUM)
+            regcache_raw_supply (regcache, i, zerobuf);
+	  else if (gdbarch_cannot_fetch_register (gdbarch, i))
 	    regcache_raw_supply (regcache, i, NULL);
 	  else
             regcache_raw_supply (regcache, i,

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