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Improvement to i386_analyze_frame_setup
- From: Andreas Schwab <schwab at suse dot de>
- To: gdb-patches at sources dot redhat dot com
- Date: Mon, 06 Oct 2003 23:23:56 +0200
- Subject: Improvement to i386_analyze_frame_setup
This patch improves the i386 frame setup analyzer by recognizing one more
case that GCC might generate.
Andreas.
2003-10-06 Andreas Schwab <schwab@suse.de>
* i386-tdep.c (i386_analyze_frame_setup): Also handle xorl/subl
with %eax.
--- gdb/i386-tdep.c.~1.170.~ 2003-10-06 10:19:03.000000000 +0200
+++ gdb/i386-tdep.c 2003-10-06 23:21:29.000000000 +0200
@@ -499,12 +499,14 @@ i386_analyze_frame_setup (CORE_ADDR pc,
xorl %ebx, %ebx
xorl %ecx, %ecx
xorl %edx, %edx
+ xorl %eax, %eax
and the equivalent
subl %ebx, %ebx
subl %ecx, %ecx
subl %edx, %edx
+ subl %eax, %eax
Make sure we only skip these instructions if we later see the
`movl %esp, %ebp' that actually sets up the frame. */
@@ -516,6 +518,7 @@ i386_analyze_frame_setup (CORE_ADDR pc,
case 0xdb: /* %ebx */
case 0xc9: /* %ecx */
case 0xd2: /* %edx */
+ case 0xc0: /* %eax */
skip += 2;
break;
default:
--
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux AG, Deutschherrnstr. 15-19, D-90429 Nürnberg
Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
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