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[PATCH] AIX: Add another way of setting up the frame pointer to skip_prologue
- From: Chris January <chris dot january at allinea dot com>
- To: gdb-patches at sourceware dot org
- Date: Thu, 08 Mar 2012 14:40:02 +0000
- Subject: [PATCH] AIX: Add another way of setting up the frame pointer to skip_prologue
Add support for compilers that use the oril r29, r1, 0x0 instruction to
set up the frame pointer.
2012-03-08 Chris January <chris.january@allinea.com>
* rs6000-tdep.c (skip_prologue): Support the oril r29, r1, 0x0
instruction.
---
diff --git a/gdb/rs6000-tdep.c b/gdb/rs6000-tdep.c
index a8ff777..9d4fd40 100644
--- a/gdb/rs6000-tdep.c
+++ b/gdb/rs6000-tdep.c
@@ -1822,6 +1822,15 @@ skip_prologue (struct gdbarch *gdbarch, CORE_ADDR
pc, CORE_ADDR lim_pc,
/* Set up frame pointer */
}
+ else if (op == 0x603d0000 /* oril r29, r1, 0x0 */)
+ {
+ fdata->frameless = 0;
+ framep = 1;
+ fdata->alloca_reg = (tdep->ppc_gp0_regnum + 29);
+ continue;
+
+ /* Another way to set up the frame pointer. */
+ }
else if (op == 0x603f0000 /* oril r31, r1, 0x0 */
|| op == 0x7c3f0b78)
{ /* mr r31, r1 */