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2004-12-14 Randolph Chung <tausq@debian.org> 

* hppa-tdep.c (hppa_in_function_epilogue_p): New function.
	(hppa_gdbarch_init): Set in_epilogue_p method.
This commit is contained in:
Randolph Chung 2004-12-14 16:35:37 +00:00
parent 3ffc5b9b5b
commit 1fb249302e
2 changed files with 45 additions and 0 deletions
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5
gdb/ChangeLog
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@ -1,3 +1,8 @@
2004-12-14 Randolph Chung <tausq@debian.org>
* hppa-tdep.c (hppa_in_function_epilogue_p): New function.
(hppa_gdbarch_init): Set in_epilogue_p method.
2004-12-14 Corinna Vinschen <vinschen@redhat.com>
* sh-tdep.c (sh_extract_return_value_nofpu): Rename from

40
gdb/hppa-tdep.c
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@ -625,6 +625,44 @@ find_unwind_entry (CORE_ADDR pc)
return NULL;
}
/* The epilogue is defined here as the area either on the `bv' instruction
itself or an instruction which destroys the function's stack frame.
We do not assume that the epilogue is at the end of a function as we can
also have return sequences in the middle of a function. */
static int
hppa_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR pc)
{
unsigned long status;
unsigned int inst;
char buf[4];
int off;
status = deprecated_read_memory_nobpt (pc, buf, 4);
if (status != 0)
return 0;
inst = extract_unsigned_integer (buf, 4);
/* The most common way to perform a stack adjustment ldo X(sp),sp
We are destroying a stack frame if the offset is negative. */
if ((inst & 0xffffc000) == 0x37de0000
&& hppa_extract_14 (inst) < 0)
return 1;
/* ldw,mb D(sp),X or ldd,mb D(sp),X */
if (((inst & 0x0fc010e0) == 0x0fc010e0
|| (inst & 0x0fc010e0) == 0x0fc010e0)
&& hppa_extract_14 (inst) < 0)
return 1;
/* bv %r0(%rp) or bv,n %r0(%rp) */
if (inst == 0xe840c000 || inst == 0xe840c002)
return 1;
return 0;
}
static const unsigned char *
hppa_breakpoint_from_pc (CORE_ADDR *pc, int *len)
{
@ -2578,6 +2616,8 @@ hppa_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
/* The following gdbarch vector elements do not depend on the address
size, or in any other gdbarch element previously set. */
set_gdbarch_skip_prologue (gdbarch, hppa_skip_prologue);
set_gdbarch_in_function_epilogue_p (gdbarch,
hppa_in_function_epilogue_p);
set_gdbarch_inner_than (gdbarch, core_addr_greaterthan);
set_gdbarch_sp_regnum (gdbarch, HPPA_SP_REGNUM);
set_gdbarch_fp0_regnum (gdbarch, HPPA_FP0_REGNUM);