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| author | Eric Botcazou <ebotcazou@adacore.com> | 2009-11-03 22:49:37 +0000 |
|---|---|---|
| committer | Eric Botcazou <ebotcazou@gcc.gnu.org> | 2009-11-03 22:49:37 +0000 |
| commit | d809253a56a642cdeb31f3f12e420f092cee0d07 (patch) | |
| tree | f611e7abf6528b7dc5e27a9acf00f201c85571a7 /gcc/system.h | |
| parent | 24d179b4c7717ceeceef16166064bd4a3933cb11 (diff) | |
| download | gcc-d809253a56a642cdeb31f3f12e420f092cee0d07.zip gcc-d809253a56a642cdeb31f3f12e420f092cee0d07.tar.gz gcc-d809253a56a642cdeb31f3f12e420f092cee0d07.tar.bz2 | |
re PR target/10127 (-fstack-check let's program crash)
PR target/10127
PR ada/20548
* expr.h (STACK_CHECK_PROBE_INTERVAL): Delete.
(STACK_CHECK_PROBE_INTERVAL_EXP): New macro.
(STACK_CHECK_MOVING_SP): Likewise.
* system.h (STACK_CHECK_PROBE_INTERVAL): Poison it.
* doc/tm.texi (Stack Checking): Delete STACK_CHECK_PROBE_INTERVAL.
Document STACK_CHECK_PROBE_INTERVAL_EXP and STACK_CHECK_MOVING_SP.
* doc/md.texi (Standard Pattern Names): Tweak entry of CHECK_STACK.
Document PROBE_STACK.
* explow.c (anti_adjust_stack_and_probe): New function.
(allocate_dynamic_stack_space): Do not directly allocate space if
STACK_CHECK_MOVING_SP, instead invoke above function.
(emit_stack_probe): Handle probe_stack insn.
(PROBE_INTERVAL): New macro.
(STACK_GROW_OPTAB): Likewise.
(STACK_GROW_OFF): Likewise.
(probe_stack_range): Use Pmode and memory_address consistently. Fix
loop condition in the small constant case. Rewrite in the general
case to be immune to wraparounds. Make sure the address of probes
is valid. Try to use [base + disp] addressing mode if possible.
* ira.c (setup_eliminable_regset): Set frame_pointer_needed if stack
checking is enabled and STACK_CHECK_MOVING_SP.
* rtlanal.c (may_trap_p_1) <MEM>: If stack checking is enabled,
return 1 for volatile references to the stack pointer.
* tree.c (build_common_builtin_nodes): Do not set ECF_NOTHROW on
__builtin_alloca if stack checking is enabled.
* unwind-dw2.c (uw_identify_context): Take into account whether the
context is that of a signal frame or not.
* config/i386/linux.h (STACK_CHECK_MOVING_SP): Define to 1.
* config/i386/linux64.h (STACK_CHECK_MOVING_SP): Likewise.
From-SVN: r153877
Diffstat (limited to 'gcc/system.h')
| -rw-r--r-- | gcc/system.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/system.h b/gcc/system.h index 0c846cf..03910d0 100644 --- a/gcc/system.h +++ b/gcc/system.h @@ -761,7 +761,7 @@ extern void fancy_abort (const char *, int, const char *) ATTRIBUTE_NORETURN; TARGET_ASM_EXCEPTION_SECTION TARGET_ASM_EH_FRAME_SECTION \ SMALL_ARG_MAX ASM_OUTPUT_SHARED_BSS ASM_OUTPUT_SHARED_COMMON \ ASM_OUTPUT_SHARED_LOCAL UNALIGNED_WORD_ASM_OP \ - ASM_MAKE_LABEL_LINKONCE + ASM_MAKE_LABEL_LINKONCE STACK_CHECK_PROBE_INTERVAL /* Hooks that are no longer used. */ #pragma GCC poison LANG_HOOKS_FUNCTION_MARK LANG_HOOKS_FUNCTION_FREE \ |