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| author | Jan Kratochvil <jan.kratochvil@redhat.com> | 2007-10-01 08:35:01 -0600 |
|---|---|---|
| committer | David Mosberger-Tang <davidm@koala.mostang.com> | 2007-10-01 08:35:01 -0600 |
| commit | 57e569646368cb730f028ecf1732143474e3e642 (patch) | |
| tree | a76ac9bd99edf78a5194f6308f0bc0566e6fe39c /src/hppa | |
| parent | c340d04279f046b543066dbc8f36452602d7fd52 (diff) | |
| download | libunwind-57e569646368cb730f028ecf1732143474e3e642.tar.gz | |
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.
Diffstat (limited to 'src/hppa')
| -rw-r--r-- | src/hppa/getcontext.S | 4 | ||||
| -rw-r--r-- | src/hppa/setcontext.S | 4 | ||||
| -rw-r--r-- | src/hppa/siglongjmp.S | 4 |
3 files changed, 12 insertions, 0 deletions
diff --git a/src/hppa/getcontext.S b/src/hppa/getcontext.S index ae485373..ec7554a0 100644 --- a/src/hppa/getcontext.S +++ b/src/hppa/getcontext.S @@ -68,3 +68,7 @@ _Uhppa_getcontext: bv,n %r0(%rp) .procend +#ifdef __linux__ + /* We do not need executable stack. */ + .section .note.GNU-stack,"",@progbits +#endif diff --git a/src/hppa/setcontext.S b/src/hppa/setcontext.S index 4eba4cd8..a36ea35c 100644 --- a/src/hppa/setcontext.S +++ b/src/hppa/setcontext.S @@ -71,3 +71,7 @@ _Uhppa_setcontext: bv,n %r0(%rp) .procend +#ifdef __linux__ + /* We do not need executable stack. */ + .section .note.GNU-stack,"",@progbits +#endif diff --git a/src/hppa/siglongjmp.S b/src/hppa/siglongjmp.S index 16cfcc68..34878dbe 100644 --- a/src/hppa/siglongjmp.S +++ b/src/hppa/siglongjmp.S @@ -10,3 +10,7 @@ _UI_longjmp_cont: #warning fix me bv %r0(%rp) .procend +#ifdef __linux__ + /* We do not need executable stack. */ + .section .note.GNU-stack,"",@progbits +#endif |