procyberian/gcc
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

unwind-dw2.c (uw_install_context_1): Update target saved stack pointer.

Browse source 
* unwind-dw2.c (uw_install_context_1): Update target saved stack
	pointer.

Co-Authored-By: Richard Henderson <rth@redhat.com>

From-SVN: r85723
This commit is contained in:
Paul Brook 2004-08-09 20:31:41 +00:00 • committed by Paul Brook
parent d37e6b5036
commit 9d8646d7b0
2 changed files with 24 additions and 15 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
gcc/ChangeLog
View file

@ -1,3 +1,9 @@
2004-08-09 Paul Brook <paul@codesourcery.com>
Richard Henderson <rth@redhat.com>
* unwind-dw2.c (uw_install_context_1): Update target saved stack
pointer.
2004-08-09 Geoffrey Keating <geoffk@apple.com>
* ggc-common.c (ggc_rlimit_bound): Don't check RSS limit.

33
gcc/unwind-dw2.c
View file

@ -1274,6 +1274,12 @@ uw_install_context_1 (struct _Unwind_Context *current,
struct _Unwind_Context *target)
{
long i;
_Unwind_SpTmp sp_slot;
/* If the target frame does not have a saved stack pointer,
then set up the target's CFA. */
if (!_Unwind_GetGRPtr (target, __builtin_dwarf_sp_column ()))
_Unwind_SetSpColumn (target, target->cfa, &sp_slot);
for (i = 0; i < DWARF_FRAME_REGISTERS; ++i)
{
@ -1284,25 +1290,22 @@ uw_install_context_1 (struct _Unwind_Context *current,
memcpy (c, t, dwarf_reg_size_table[i]);
}
#ifdef EH_RETURN_STACKADJ_RTX
{
void *target_cfa;
/* If the current frame doesn't have a saved stack pointer, then we
need to rely on EH_RETURN_STACKADJ_RTX to get our target stack
pointer value reloaded. */
if (!_Unwind_GetGRPtr (current, __builtin_dwarf_sp_column ()))
{
void *target_cfa;
/* If the last frame records a saved stack pointer, use it. */
if (_Unwind_GetGRPtr (target, __builtin_dwarf_sp_column ()))
target_cfa = _Unwind_GetPtr (target, __builtin_dwarf_sp_column ());
else
target_cfa = target->cfa;
/* We adjust SP by the difference between CURRENT and TARGET's CFA. */
if (STACK_GROWS_DOWNWARD)
return target_cfa - current->cfa + target->args_size;
else
return current->cfa - target_cfa - target->args_size;
}
#else
/* We adjust SP by the difference between CURRENT and TARGET's CFA. */
if (STACK_GROWS_DOWNWARD)
return target_cfa - current->cfa + target->args_size;
else
return current->cfa - target_cfa - target->args_size;
}
return 0;
#endif
}
static inline _Unwind_Ptr