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[hppa-hpux] Signal frame unwinding support for hppa64-hp-hpux11.11
- From: Randolph Chung <randolph at tausq dot org>
- To: gdb-patches at sources dot redhat dot com
- Date: Thu, 17 Nov 2005 12:47:50 +0800
- Subject: [hppa-hpux] Signal frame unwinding support for hppa64-hp-hpux11.11
The attached patch adds support for signal frame unwinding under
hppa64-hp-hpux11.11, and fixes a bug with signal frame unwinding under
hppa2.0w-hp-hpux11.11. I will commit this in a day or no if there are no
comments.
randolph
--
Randolph Chung
Debian GNU/Linux Developer, hppa/ia64 ports
http://www.tausq.org/
2005-11-15 Randolph Chung <tausq@debian.org>
* hppa-hpux-tdep.c (hppa_hpux_sigtramp_frame_unwind_cache): Ensure "off"
is large enough to hold 64-bit offset. Set proper signal context offset
for 64-bit programs. Set pc properly for signal frames.
Index: hppa-hpux-tdep.c
===================================================================
RCS file: /cvs/src/src/gdb/hppa-hpux-tdep.c,v
retrieving revision 1.43
diff -u -p -r1.43 hppa-hpux-tdep.c
--- hppa-hpux-tdep.c 29 Oct 2005 21:31:45 -0000 1.43
+++ hppa-hpux-tdep.c 15 Nov 2005 15:40:07 -0000
@@ -1158,8 +1158,8 @@ hppa_hpux_sigtramp_frame_unwind_cache (s
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
struct hppa_hpux_sigtramp_unwind_cache *info;
unsigned int flag;
- CORE_ADDR sp, scptr;
- int i, incr, off, szoff;
+ CORE_ADDR sp, scptr, off;
+ int i, incr, szoff;
if (*this_cache)
return *this_cache;
@@ -1170,14 +1170,18 @@ hppa_hpux_sigtramp_frame_unwind_cache (s
sp = frame_unwind_register_unsigned (next_frame, HPPA_SP_REGNUM);
- scptr = sp - 1352;
+ if (IS_32BIT_TARGET (gdbarch))
+ scptr = sp - 1352;
+ else
+ scptr = sp - 1520;
+
off = scptr;
/* See /usr/include/machine/save_state.h for the structure of the save_state_t
structure. */
flag = read_memory_unsigned_integer(scptr, 4);
-
+
if (!(flag & 0x40))
{
/* Narrow registers. */
@@ -1188,7 +1192,7 @@ hppa_hpux_sigtramp_frame_unwind_cache (s
else
{
/* Wide registers. */
- off = scptr + offsetof (save_state_t, ss_wide) + 8;
+ off = scptr + offsetof (save_state_t, ss_wide.ss_64) + 8;
incr = 8;
szoff = (tdep->bytes_per_address == 4 ? 4 : 0);
}
@@ -1203,11 +1207,15 @@ hppa_hpux_sigtramp_frame_unwind_cache (s
{
if (hppa_hpux_tramp_reg[i] > 0)
info->saved_regs[hppa_hpux_tramp_reg[i]].addr = off + szoff;
+
off += incr;
}
/* TODO: fp regs */
+ info->saved_regs[HPPA_PCOQ_HEAD_REGNUM].addr =
+ info->saved_regs[HPPA_RP_REGNUM].addr;
+
info->base = frame_unwind_register_unsigned (next_frame, HPPA_SP_REGNUM);
return info;