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authorAndi Kleen <ak@linux.intel.com>2014-02-08 08:52:06 +0100
committerH. Peter Anvin <hpa@linux.intel.com>2014-02-13 18:13:43 -0800
commita7330c997d0f74d909a7d3553b1d550d8be2b61a (patch)
treee42c5a279bfae1769748229e65f6290cc291dc89 /kernel/panic.c
parent3ebae4f3a2e746ae17f25c741e249294e7d6d7c2 (diff)
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asmlinkage Make __stack_chk_failed and memcmp visible
In LTO symbols implicitely referenced by the compiler need to be visible. Earlier these symbols were visible implicitely from being exported, but we disabled implicit visibility fo EXPORTs when modules are disabled to improve code size. So now these symbols have to be marked visible explicitely. Do this for __stack_chk_fail (with stack protector) and memcmp. Signed-off-by: Andi Kleen <ak@linux.intel.com> Link: http://lkml.kernel.org/r/1391845930-28580-10-git-send-email-ak@linux.intel.com Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'kernel/panic.c')
-rw-r--r--kernel/panic.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/panic.c b/kernel/panic.c
index 6d6300375090..3eb0ffb25960 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -459,7 +459,7 @@ EXPORT_SYMBOL(warn_slowpath_null);
* Called when gcc's -fstack-protector feature is used, and
* gcc detects corruption of the on-stack canary value
*/
-void __stack_chk_fail(void)
+__visible void __stack_chk_fail(void)
{
panic("stack-protector: Kernel stack is corrupted in: %p\n",
__builtin_return_address(0));