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e89cef136a
By adding following objects: bench/mem-memset-x86-64-asm.o bench/mem-memcpy-x86-64-asm.o the x86_64 perf binary ended up with executable stack. The reason was that above objects are assembler sourced and are missing the GNU-stack note section. In such case the linker assumes that the final binary should not be restricted at all and mark the stack as RWX. Adding section ".note.GNU-stack" definition to mentioned objects, with all flags disabled, thus omiting those objects from linker stack flags decision. Reported-at: https://bugzilla.redhat.com/show_bug.cgi?id=783570 Reported-by: Clark Williams <williams@redhat.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1328100848-5630-1-git-send-email-jolsa@redhat.com Signed-off-by: Jiri Olsa <jolsa@redhat.com> [ committer note: Remaining bits after what was already added to perf/urgent ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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