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* [Bug middle-end/25957] -fstack-protector code on i386/x86_64 can be improved.
[not found] <bug-25957-4@http.gcc.gnu.org/bugzilla/>
@ 2011-10-08 23:27 ` andi-gcc at firstfloor dot org
2014-09-26 17:46 ` andi-gcc at firstfloor dot org
1 sibling, 0 replies; 2+ messages in thread
From: andi-gcc at firstfloor dot org @ 2011-10-08 23:27 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25957
--- Comment #11 from Andi Kleen <andi-gcc at firstfloor dot org> 2011-10-08 23:27:02 UTC ---
I just checked and the problem is still there with
4.7.0 20111002
xorq %fs:40, %rax
jne .L4
addq $120, %rsp
.cfi_remember_state
.cfi_def_cfa_offset 8
ret
.L4:
.cfi_restore_state
.p2align 4,,6
call __stack_chk_fail
.cfi_endproc
.LFE0:
unnecessary wasteful alignment for the call to
abort. The basic block should be marked cold.
^ permalink raw reply [flat|nested] 2+ messages in thread
* [Bug middle-end/25957] -fstack-protector code on i386/x86_64 can be improved.
[not found] <bug-25957-4@http.gcc.gnu.org/bugzilla/>
2011-10-08 23:27 ` [Bug middle-end/25957] -fstack-protector code on i386/x86_64 can be improved andi-gcc at firstfloor dot org
@ 2014-09-26 17:46 ` andi-gcc at firstfloor dot org
1 sibling, 0 replies; 2+ messages in thread
From: andi-gcc at firstfloor dot org @ 2014-09-26 17:46 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=25957
--- Comment #12 from Andi Kleen <andi-gcc at firstfloor dot org> ---
Problem is still there in
gcc50 (GCC) 4.9.0 20130617 (experimental)
The stack protector edge should be cold and alignment disabled.
^ permalink raw reply [flat|nested] 2+ messages in thread
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[not found] <bug-25957-4@http.gcc.gnu.org/bugzilla/>
2011-10-08 23:27 ` [Bug middle-end/25957] -fstack-protector code on i386/x86_64 can be improved andi-gcc at firstfloor dot org
2014-09-26 17:46 ` andi-gcc at firstfloor dot org
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