diff options
Diffstat (limited to 'meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0209-PR-target-48723.patch')
-rw-r--r-- | meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0209-PR-target-48723.patch | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0209-PR-target-48723.patch b/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0209-PR-target-48723.patch new file mode 100644 index 0000000000..01df534866 --- /dev/null +++ b/meta/recipes-devtools/gcc/gcc-4.6.0/gcc-4_6-branch-backports/0209-PR-target-48723.patch | |||
@@ -0,0 +1,26 @@ | |||
1 | From 55ec7e3af4823fc378f78e35b795af1bafcd3542 Mon Sep 17 00:00:00 2001 | ||
2 | From: ebotcazou <ebotcazou@138bc75d-0d04-0410-961f-82ee72b054a4> | ||
3 | Date: Tue, 3 May 2011 07:20:30 +0000 | ||
4 | Subject: [PATCH] PR target/48723 | ||
5 | * config/i386/i386.c (ix86_expand_prologue): Do not probe the stack | ||
6 | for -fstack-check if the size to allocate is negative. | ||
7 | |||
8 | git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-4_6-branch@173289 138bc75d-0d04-0410-961f-82ee72b054a4 | ||
9 | |||
10 | index 6e4bb3b..f3a8a0c 100644 | ||
11 | --- a/gcc/config/i386/i386.c | ||
12 | +++ b/gcc/config/i386/i386.c | ||
13 | @@ -10566,8 +10566,8 @@ ix86_expand_prologue (void) | ||
14 | } | ||
15 | |||
16 | /* The stack has already been decremented by the instruction calling us | ||
17 | - so we need to probe unconditionally to preserve the protection area. */ | ||
18 | - if (flag_stack_check == STATIC_BUILTIN_STACK_CHECK) | ||
19 | + so probe if the size is non-negative to preserve the protection area. */ | ||
20 | + if (allocate >= 0 && flag_stack_check == STATIC_BUILTIN_STACK_CHECK) | ||
21 | { | ||
22 | /* We expect the registers to be saved when probes are used. */ | ||
23 | gcc_assert (int_registers_saved); | ||
24 | -- | ||
25 | 1.7.0.4 | ||
26 | |||