[PATCH 1/2] ssp.c: use libc_hidden_proto and libc_hidden_def.

[Carmelo AMOROSO]

On 3/8/2011 11:59 AM, Peter Mazinger wrote:
> Hello William,
> 
> Do you have jump relocations for __chk_fail on x86_64?
> 
> Thanks, Peter
> 

See bug 2713. [https://bugs.busybox.net/show_bug.cgi?id=2713]


> -------- Original-Nachricht --------
>  > Datum: Tue, 8 Mar 2011 01:45:35 -0600
>  > Von: William Pitcock <nenolod at dereferenced.org>
>  > An:
>  > Betreff: [PATCH 1/2] ssp.c: use libc_hidden_proto and libc_hidden_def.
> 
>  > This allows us to make the stack smashing features on x86_64 available.
>  >
>  > Signed-off-by: William Pitcock <nenolod at dereferenced.org>
>  > ---
>  > libc/sysdeps/linux/common/ssp.c | 4 ++++
>  > 1 files changed, 4 insertions(+), 0 deletions(-)
>  >
>  > diff --git a/libc/sysdeps/linux/common/ssp.c
>  > b/libc/sysdeps/linux/common/ssp.c
>  > index d81c706..57a093b 100644
>  > --- a/libc/sysdeps/linux/common/ssp.c
>  > +++ b/libc/sysdeps/linux/common/ssp.c
>  > @@ -88,6 +88,7 @@ void __stack_smash_handler(char func[], int damaged)
>  > #endif
>  >
>  > void __stack_chk_fail(void) attribute_noreturn __cold;
>  > +libc_hidden_proto(__stack_chk_fail)
>  > void __stack_chk_fail(void)
>  > {
>  > static const char msg1[] = "stack smashing detected: ";
>  > @@ -101,8 +102,10 @@ void __stack_chk_fail(void)
>  > while(1)
>  > terminate();
>  > }
>  > +libc_hidden_def(__stack_chk_fail)
>  >
>  > void __chk_fail(void) attribute_noreturn;
>  > +libc_hidden_proto(__chk_fail)
>  > void __chk_fail(void)
>  > {
>  > static const char msg1[] = "buffer overflow detected: ";
>  > @@ -116,3 +119,4 @@ void __chk_fail(void)
>  > while(1)
>  > terminate();
>  > }
>  > +libc_hidden_def(__chk_fail)
>  > --
>  > 1.7.4.1
>  >
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