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[Patch, moxie] Update prologue analyzer
- From: Anthony Green <green at moxielogic dot com>
- To: gdb-patches at sourceware dot org
- Date: Mon, 10 Sep 2012 17:15:47 -0400
- Subject: [Patch, moxie] Update prologue analyzer
This patch updates the function prologue analyzer. It fixes a couple
of bugs and adjust things for more recent GCC output. I am committing
this change.
Thanks,
Anthony Green
2012-09-10 Anthony Green <green@moxielogic.com>
* moxie-tdep.c (moxie_analyze_prologue): Update for function
prologue changes in GCC.
Index: moxie-tdep.c
===================================================================
RCS file: /cvs/src/src/gdb/moxie-tdep.c,v
retrieving revision 1.16
diff -u -r1.16 moxie-tdep.c
--- moxie-tdep.c 16 May 2012 14:35:06 -0000 1.16
+++ moxie-tdep.c 10 Sep 2012 21:12:34 -0000
@@ -166,8 +166,8 @@
{
inst = read_memory_unsigned_integer (next_addr, 2, byte_order);
- /* Match "push $rN" where N is between 2 and 13 inclusive. */
- if (inst >= 0x0614 && inst <= 0x061f)
+ /* Match "push $sp $rN" where N is between 0 and 13 inclusive. */
+ if (inst >= 0x0612 && inst <= 0x061f)
{
regnum = inst & 0x000f;
cache->framesize += 4;
@@ -182,19 +182,19 @@
/* Optional stack allocation for args and local vars <= 4
byte. */
- if (inst == 0x0170) /* ldi.l $r5, X */
+ if (inst == 0x01e0) /* ldi.l $r12, X */
{
offset = read_memory_integer (next_addr + 2, 4, byte_order);
inst2 = read_memory_unsigned_integer (next_addr + 6, 2, byte_order);
- if (inst2 == 0x0517) /* add.l $sp, $r5 */
+ if (inst2 == 0x291e) /* sub.l $sp, $r12 */
{
cache->framesize += offset;
}
return (next_addr + 8);
}
- else if ((inst & 0xff00) == 0x91) /* dec $sp, X */
+ else if ((inst & 0xff00) == 0x9100) /* dec $sp, X */
{
cache->framesize += (inst & 0x00ff);
next_addr += 2;
@@ -202,7 +202,7 @@
while (next_addr < end_addr)
{
inst = read_memory_unsigned_integer (next_addr, 2, byte_order);
- if ((inst & 0xff00) != 0x91) /* no more dec $sp, X */
+ if ((inst & 0xff00) != 0x9100) /* no more dec $sp, X */
break;
cache->framesize += (inst & 0x00ff);
next_addr += 2;