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Author SHA1 Message Date
Konstantin Belousov
59328832f7 Provide the FreeBSD implementation for _UI_siglongjmp_cont on x86. 
On FreeBSD, _NSIG is at least 128, so just pass a pointer to the
signal mask in the register.
Add my copyright.
 2012-02-05 11:47:47 +02:00
Konstantin Belousov
1774384098 FreeBSD also supports PT_GNU_STACK. 2012-02-05 11:42:02 +02:00
Jan Kratochvil
57e5696463 Mark Wielaard <mwielaard@redhat.com> writes: 
On some systems executable stacks are denied. Since libunwind and the
tests don't actually need executable stacks this patch marks all
assembly files as not needing it.

The original patch comes from frysk:

2007-04-05  Jan Kratochvil  <jan.kratochvil@redhat.com>

    * src/hppa/getcontext.S, src/hppa/setcontext.S, src/hppa/siglongjmp.S,
    src/ia64/Ginstall_cursor.S, src/ia64/Linstall_cursor.S,
    src/ia64/dyn_info_list.S, src/ia64/getcontext.S, src/ia64/longjmp.S,
    src/ia64/setjmp.S, src/ia64/siglongjmp.S, src/ia64/sigsetjmp.S,
    src/ppc64/longjmp.S, src/ppc64/siglongjmp.S, src/x86/longjmp.S,
    src/x86/siglongjmp.S, src/x86_64/longjmp.S, src/x86_64/setcontext.S,
    src/x86_64/siglongjmp.S: Stack should be non-executable, for SELinux.

I added a couple more markers for new files in current libunwind.

Before this patch you would get the following on selinux enabled
systems without allow_exec_stack: error while loading shared
libraries:

libunwind.so.7: cannot enable executable stack as shared object
	requires: Permission denied

After the patch that error disappears and all test results are similar
to the results on systems without executable stack protection.
 2007-10-01 08:35:01 -06:00
mostang.com!davidm
239ea4e7ea Implement for real. Note: this version is currently broken. 
We don't pass sigmask the way this routine expects because it
can't work.

(Logical change 1.290)
 2005-05-03 09:13:17 +00:00
mostang.com!davidm
caa528e1e8 Add dummy implementation of _UI_longjmp_cont(). 
(Logical change 1.268)
 2004-09-09 16:26:15 +00:00
homeip.net!davidm
b8f4069f9f Rename: src/x86/siglongjmp-x86.S -> src/x86/siglongjmp.S 
(Logical change 1.241)
 2004-08-17 15:34:28 +00:00
homeip.net!davidm
3f9d2e9c5c Initial revision 2004-08-17 15:34:28 +00:00