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2004-05-17 Randolph Chung <tausq@debian.org> 

* hppa-tdep.c (hppa_stub_frame_unwind_cache): For HPUX stub unwinding,
	check to see if we are unwinding an export stub.  Export stubs clobber
	the %rp in the call path and stores the original rp in a stack slot.
This commit is contained in:
Randolph Chung 2004-05-17 16:46:06 +00:00
parent 22f2b2f398
commit 22b0923df5
2 changed files with 26 additions and 1 deletions
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6
gdb/ChangeLog
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@ -1,3 +1,9 @@
2004-05-17 Randolph Chung <tausq@debian.org>
* hppa-tdep.c (hppa_stub_frame_unwind_cache): For HPUX stub unwinding,
check to see if we are unwinding an export stub. Export stubs clobber
the %rp in the call path and stores the original rp in a stack slot.
2004-05-17 Jim Blandy <jimb@redhat.com>
* MAINTAINERS: Update address for J.T. Conklin.

21
gdb/hppa-tdep.c
View File

@ -1987,6 +1987,7 @@ hppa_stub_frame_unwind_cache (struct frame_info *next_frame,
{
struct gdbarch *gdbarch = get_frame_arch (next_frame);
struct hppa_stub_unwind_cache *info;
struct unwind_table_entry *u;
if (*this_cache)
return *this_cache;
@ -1995,9 +1996,27 @@ hppa_stub_frame_unwind_cache (struct frame_info *next_frame,
*this_cache = info;
info->saved_regs = trad_frame_alloc_saved_regs (next_frame);
info->saved_regs[HPPA_PCOQ_HEAD_REGNUM].realreg = HPPA_RP_REGNUM;
info->base = frame_unwind_register_unsigned (next_frame, HPPA_SP_REGNUM);
if (gdbarch_osabi (gdbarch) == GDB_OSABI_HPUX_ELF
|| gdbarch_osabi (gdbarch) == GDB_OSABI_HPUX_SOM)
{
/* HPUX uses export stubs in function calls; the export stub clobbers
the return value of the caller, and, later restores it from the
stack. */
u = find_unwind_entry (frame_pc_unwind (next_frame));
if (u && u->stub_unwind.stub_type == EXPORT)
{
info->saved_regs[HPPA_PCOQ_HEAD_REGNUM].addr = info->base - 24;
return info;
}
}
/* By default we assume that stubs do not change the rp. */
info->saved_regs[HPPA_PCOQ_HEAD_REGNUM].realreg = HPPA_RP_REGNUM;
return info;
}