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[hpux] Update prologue analysis insn pattern
- From: Randolph Chung <randolph at tausq dot org>
- To: gdb-patches at sources dot redhat dot com
- Date: Sat, 19 Nov 2005 20:42:01 +0800
- Subject: [hpux] Update prologue analysis insn pattern
through experimentation I have found another insn pattern used for
storing rp onto the stack that is used at least on hpux11.11. Add it to
the prologue analysis code.
this is a good example of why Joel's proposal of cleaning up and
considating the prologue analysis code is a good idea :)
committed.
randolph
2005-11-19 Randolph Chung <tausq@debian.org>
* hppa-tdep.c (skip_prologue_hard_way): Add one more insn pattern for
"std rp,-0x10(sp)".
(hppa_frame_cache): Likewise.
(hppa_fallback_frame_cache): Likewise.
Index: hppa-tdep.c
===================================================================
RCS file: /cvs/src/src/gdb/hppa-tdep.c,v
retrieving revision 1.212
diff -u -p -r1.212 hppa-tdep.c
--- hppa-tdep.c 3 Oct 2005 20:53:00 -0000 1.212
+++ hppa-tdep.c 19 Nov 2005 12:30:24 -0000
@@ -1491,7 +1552,7 @@ restart:
/* There are limited ways to store the return pointer into the
stack. */
- if (inst == 0x6bc23fd9 || inst == 0x0fc212c1)
+ if (inst == 0x6bc23fd9 || inst == 0x0fc212c1 || inst == 0x73c23fe1)
save_rp = 0;
/* These are the only ways we save SP into the stack. At this time
@@ -1846,7 +1907,8 @@ hppa_frame_cache (struct frame_info *nex
looking_for_rp = 0;
cache->saved_regs[HPPA_RP_REGNUM].addr = -24;
}
- else if (inst == 0x0fc212c1) /* std rp,-0x10(sr0,sp) */
+ else if (inst == 0x0fc212c1
+ || inst == 0x73c23fe1) /* std rp,-0x10(sr0,sp) */
{
looking_for_rp = 0;
cache->saved_regs[HPPA_RP_REGNUM].addr = -16;
@@ -2174,7 +2249,8 @@ hppa_fallback_frame_cache (struct frame_
cache->saved_regs[HPPA_RP_REGNUM].addr = -20;
found_rp = 1;
}
- else if (insn == 0x0fc212c1) /* std rp,-0x10(sr0,sp) */
+ else if (insn == 0x0fc212c1
+ || insn == 0x73c23fe1) /* std rp,-0x10(sr0,sp) */
{
cache->saved_regs[HPPA_RP_REGNUM].addr = -16;
found_rp = 1;