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* i386-tdep.c (i386_analyze_frame_setup): Add missing encodings 

for `subl' and `xorl' instructions.
This commit is contained in:
Mark Kettenis 2003-12-14 10:59:08 +00:00
parent 1eb4d9af74
commit 5daa5b4ecc
2 changed files with 10 additions and 1 deletions
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gdb/ChangeLog
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@ -1,3 +1,8 @@
2003-12-14 Mark Kettenis <kettenis@gnu.org>
* i386-tdep.c (i386_analyze_frame_setup): Add missing encodings
for `subl' and `xorl' instructions.
2003-12-13 Jim Blandy <jimb@redhat.com>
* dwarf2read.c (dwarf2_add_member_fn, read_structure_scope):

6
gdb/i386-tdep.c
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@ -508,9 +508,13 @@ i386_analyze_frame_setup (CORE_ADDR pc, CORE_ADDR current_pc,
subl %edx, %edx
subl %eax, %eax
Because of the symmetry, there are actually two ways to
encode these instructions; with opcode bytes 0x29 and 0x2b
for `subl' and opcode bytes 0x31 and 0x33 for `xorl'.
Make sure we only skip these instructions if we later see the
`movl %esp, %ebp' that actually sets up the frame. */
while (op == 0x29 || op == 0x31)
while (op == 0x29 || op == 0x2b || op == 0x31 || op == 0x33)
{
op = read_memory_unsigned_integer (pc + skip + 2, 1);
switch (op)