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
..
feature-checks	Merge branch 'perf/urgent' into perf/core	2014-03-11 11:53:50 +01:00
Makefile	perf x86: Fix perf to use non-executable stack, again	2014-04-30 17:02:30 +02:00
Makefile.arch	perf tools: Allow building for tile	2014-03-07 11:19:49 -05:00
utilities.mak	perf tools: Making QUIET_(CLEAN|INSTAL) variables global	2013-12-19 16:18:08 -03:00