From: Michael Snyder <msnyder@vmware.com>
Date: Tue, 17 Sep 2002 20:54:02 +0000 (+0000)
Subject: 2002-08-13  Michael Snyder  <msnyder@redhat.com>
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=21f87145aaefc6ebd8b661c70531a2c452dca1f5;p=binutils-gdb.git

2002-08-13  Michael Snyder  <msnyder@redhat.com>

	* mips-tdep.c (mips_pop_frame): Read saved values of floating
	point registers without sign extension.
---

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 14d09fb8744..f2c1116a9a8 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2002-08-13  Michael Snyder  <msnyder@redhat.com>
+
+	* mips-tdep.c (mips_pop_frame): Read saved values of floating
+	point registers without sign extension.
+
 2002-09-17  Andrew Cagney  <cagney@redhat.com>
 
 	* blockframe.c (deprecated_read_register_dummy): Rename
diff --git a/gdb/mips-tdep.c b/gdb/mips-tdep.c
index 5071446d311..683faa4e4fb 100644
--- a/gdb/mips-tdep.c
+++ b/gdb/mips-tdep.c
@@ -3782,13 +3782,21 @@ mips_pop_frame (void)
   if (frame->saved_regs == NULL)
     FRAME_INIT_SAVED_REGS (frame);
   for (regnum = 0; regnum < NUM_REGS; regnum++)
-    {
-      if (regnum != SP_REGNUM && regnum != PC_REGNUM
-	  && frame->saved_regs[regnum])
-	write_register (regnum,
-			read_memory_integer (frame->saved_regs[regnum],
-					     MIPS_SAVED_REGSIZE));
-    }
+    if (regnum != SP_REGNUM && regnum != PC_REGNUM
+	&& frame->saved_regs[regnum])
+      {
+	/* Floating point registers must not be sign extended, 
+	   in case MIPS_SAVED_REGSIZE = 4 but sizeof (FP0_REGNUM) == 8.  */
+
+	if (FP0_REGNUM <= regnum && regnum < FP0_REGNUM + 32)
+	  write_register (regnum,
+			  read_memory_unsigned_integer (frame->saved_regs[regnum],
+							MIPS_SAVED_REGSIZE));
+	else
+	  write_register (regnum,
+			  read_memory_integer (frame->saved_regs[regnum],
+					       MIPS_SAVED_REGSIZE));
+      }
 
   write_register (SP_REGNUM, new_sp);
   flush_cached_frames ();