Jiri Olsa e89cef136a perf tool: Fix perf stack to non executable on x86_64 ...

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 <[email protected]>
Acked-by: Eric Dumazet <[email protected]>
Cc: Corey Ashford <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Jiri Olsa <[email protected]>
[ committer note: Remaining bits after what was already added to perf/urgent ]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

2012-02-06 19:14:17 -02:00

..

bench.h

…

mem-memcpy-arch.h

…

mem-memcpy-x86-64-asm-def.h

…

mem-memcpy-x86-64-asm.S

Merge branch 'perf/urgent' into perf/core

2012-02-06 19:11:02 -02:00

mem-memcpy.c

…

mem-memset-arch.h

…

mem-memset-x86-64-asm-def.h

…

mem-memset-x86-64-asm.S

perf tool: Fix perf stack to non executable on x86_64

2012-02-06 19:14:17 -02:00

mem-memset.c

…

sched-messaging.c

…

sched-pipe.c

…