Mathias Krause 6392b4ebdc perf x86: Fix perf to use non-executable stack, again ... arch/x86/tests/regs_load.S is missing the linker note about the stack requirements, therefore making the linker fall back to an executable stack. As this object gets linked against the final perf binary, it'll needlessly end up with an executable stack. Fix this by adding the appropriate linker note. Also add a global linker flag to prevent future regressions, as suggested by Jiri. This way perf won't get an executable stack even if we fail to add the .GNU-stack linker note to future assembler files. Though, doing so might create regressions the other way around, when (statically) linking against libraries needing an executable stack. But, apparently, regressing in that direction is wanted as it is an indicator of poor code quality -- or just missing linker notes. Fixes: 3c8b06f981 ("perf tests x86: Introduce perf_regs_load function") Signed-off-by: Mathias Krause <minipli@googlemail.com> Acked-by: Ingo Molnar <mingo@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1398617466-22749-1-git-send-email-minipli@googlemail.com Signed-off-by: Jiri Olsa <jolsa@kernel.org>		2014-04-30 17:02:30 +02:00
..
include	perf tests x86: Add dwarf unwind test	2014-02-18 09:34:47 -03:00
tests	perf x86: Fix perf to use non-executable stack, again	2014-04-30 17:02:30 +02:00
util	perf tools: Add libdw DWARF post unwind support	2014-02-24 09:29:36 -03:00
Makefile	perf tools: Setup default dwarf post unwinder	2014-02-24 09:29:36 -03:00