* Mark libffi as not requiring executable stack on FreeBSD
@ 2012-07-29 1:15 Konstantin Belousov
2013-11-04 23:39 ` Brad Smith
0 siblings, 1 reply; 2+ messages in thread
From: Konstantin Belousov @ 2012-07-29 1:15 UTC (permalink / raw)
To: libffi-discuss
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Hi,
libffi on FreeBSD uses assembler source src/x86/freebsd.S which lacks
.note.GNU-stack section. As result, libffi shared library and any code
that links with libffi statically ends up with executable stack.
Patch below fixes the issue. Please apply.
commit 2b8152f633c6debae0b6076b0c39eb326ceb09e2
Author: Konstantin Belousov <kib@freebsd.org>
Date: Sun Jul 29 04:06:39 2012 +0300
On FreeBSD, mark the assembler source as not requiring executable stack.
diff --git a/src/x86/freebsd.S b/src/x86/freebsd.S
index afde513..ee6fc45 100644
--- a/src/x86/freebsd.S
+++ b/src/x86/freebsd.S
@@ -456,3 +456,4 @@ ffi_closure_raw_SYSV:
#endif
#endif /* ifndef __x86_64__ */
+ .section .note.GNU-stack,"",%progbits
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^ permalink raw reply [flat|nested] 2+ messages in thread* Re: Mark libffi as not requiring executable stack on FreeBSD
2012-07-29 1:15 Mark libffi as not requiring executable stack on FreeBSD Konstantin Belousov
@ 2013-11-04 23:39 ` Brad Smith
0 siblings, 0 replies; 2+ messages in thread
From: Brad Smith @ 2013-11-04 23:39 UTC (permalink / raw)
To: libffi-discuss
On 28/07/12 9:14 PM, Konstantin Belousov wrote:
> Hi,
> libffi on FreeBSD uses assembler source src/x86/freebsd.S which lacks
> .note.GNU-stack section. As result, libffi shared library and any code
> that links with libffi statically ends up with executable stack.
>
> Patch below fixes the issue. Please apply.
ping.
> commit 2b8152f633c6debae0b6076b0c39eb326ceb09e2
> Author: Konstantin Belousov <kib-h+KGxgPPiopAfugRpC6u6w@public.gmane.org>
> Date: Sun Jul 29 04:06:39 2012 +0300
>
> On FreeBSD, mark the assembler source as not requiring executable stack.
>
> diff --git a/src/x86/freebsd.S b/src/x86/freebsd.S
> index afde513..ee6fc45 100644
> --- a/src/x86/freebsd.S
> +++ b/src/x86/freebsd.S
> @@ -456,3 +456,4 @@ ffi_closure_raw_SYSV:
> #endif
>
> #endif /* ifndef __x86_64__ */
> + .section .note.GNU-stack,"",%progbits
>
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