diff options
| author | Ian Lance Taylor <iant@google.com> | 2012-08-21 20:51:42 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <ian@gcc.gnu.org> | 2012-08-21 20:51:42 +0000 |
| commit | 4b1b378895294425e2352f8e1730a74942fb067c (patch) | |
| tree | a9abac2f89d0303bc8fd193c6dba6e14e7874c39 /libgcc | |
| parent | 8a3ffc5d39c44c2e7923f5ad39c1b6392c429cb0 (diff) | |
| download | gcc-4b1b378895294425e2352f8e1730a74942fb067c.tar.gz | |
morestack.S (__morestack_non_split): Increase amount of space allocated for non-split code stack.
* config/i386/morestack.S (__morestack_non_split): Increase amount
of space allocated for non-split code stack.
From-SVN: r190574
Diffstat (limited to 'libgcc')
| -rw-r--r-- | libgcc/ChangeLog | 5 | ||||
| -rw-r--r-- | libgcc/config/i386/morestack.S | 13 |
2 files changed, 14 insertions, 4 deletions
diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog index 66d52d8f96a..eaa4f2904a1 100644 --- a/libgcc/ChangeLog +++ b/libgcc/ChangeLog @@ -1,3 +1,8 @@ +2012-08-21 Ian Lance Taylor <iant@google.com> + + * config/i386/morestack.S (__morestack_non_split): Increase amount + of space allocated for non-split code stack. + 2012-08-19 Joseph Myers <joseph@codesourcery.com> * crtstuff.c (USE_PT_GNU_EH_FRAME): Define for systems using glibc diff --git a/libgcc/config/i386/morestack.S b/libgcc/config/i386/morestack.S index 228d6901abd..9528431f7e6 100644 --- a/libgcc/config/i386/morestack.S +++ b/libgcc/config/i386/morestack.S @@ -83,6 +83,9 @@ #endif +# The amount of space we ask for when calling non-split-stack code. +#define NON_SPLIT_STACK 0x100000 + # This entry point is for split-stack code which calls non-split-stack # code. When the linker sees this case, it converts the call to # __morestack to call __morestack_non_split instead. We just bump the @@ -109,7 +112,7 @@ __morestack_non_split: movl %esp,%eax # Current stack, subl 8(%esp),%eax # less required stack frame size, - subl $0x4000,%eax # less space for non-split code. + subl $NON_SPLIT_STACK,%eax # less space for non-split code. cmpl %gs:0x30,%eax # See if we have enough space. jb 2f # Get more space if we need it. @@ -171,7 +174,8 @@ __morestack_non_split: .cfi_adjust_cfa_offset -4 # Account for popped register. - addl $0x5000+BACKOFF,4(%esp) # Increment space we request. + # Increment space we request. + addl $NON_SPLIT_STACK+0x1000+BACKOFF,4(%esp) # Fall through into morestack. @@ -186,7 +190,7 @@ __morestack_non_split: movq %rsp,%rax # Current stack, subq %r10,%rax # less required stack frame size, - subq $0x4000,%rax # less space for non-split code. + subq $NON_SPLIT_STACK,%rax # less space for non-split code. #ifdef __LP64__ cmpq %fs:0x70,%rax # See if we have enough space. @@ -219,7 +223,8 @@ __morestack_non_split: .cfi_adjust_cfa_offset -8 # Adjust for popped register. - addq $0x5000+BACKOFF,%r10 # Increment space we request. + # Increment space we request. + addq $NON_SPLIT_STACK+0x1000+BACKOFF,%r10 # Fall through into morestack. |