Messages in this thread Patch in this message | | | Subject | [RFC][PATCH 6/7] x86, mpx, selftests: Use prctl header instead of magic numbers | From | Dave Hansen <> | Date | Wed, 01 Feb 2017 15:24:16 -0800 |
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I got away with just hard-coding the prctl() numbers in the MPX selftests. Include the kernel header so we can just use the symbolic names.
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b/tools/testing/selftests/x86/mpx-mini-test.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)
diff -puN tools/testing/selftests/x86/mpx-mini-test.c~mawa-068-selftests-inc tools/testing/selftests/x86/mpx-mini-test.c --- a/tools/testing/selftests/x86/mpx-mini-test.c~mawa-068-selftests-inc 2017-02-01 15:12:18.083231385 -0800 +++ b/tools/testing/selftests/x86/mpx-mini-test.c 2017-02-01 15:12:18.087231565 -0800 @@ -40,6 +40,8 @@ int zap_all_every_this_many_mallocs = 10 #include "mpx-debug.h" #include "mpx-mm.h" +#include "../../../../include/uapi/linux/prctl.h" + #ifndef __always_inline #define __always_inline inline __attribute__((always_inline) #endif @@ -666,7 +668,7 @@ bool process_specific_init(void) check_clear(dir, size); enable_mpx(dir); check_clear(dir, size); - if (prctl(43, 0, 0, 0, 0)) { + if (prctl(PR_MPX_ENABLE_MANAGEMENT, 0, 0, 0, 0)) { printf("no MPX support\n"); abort(); return false; @@ -676,7 +678,7 @@ bool process_specific_init(void) bool process_specific_finish(void) { - if (prctl(44)) { + if (prctl(PR_MPX_DISABLE_MANAGEMENT)) { printf("no MPX support\n"); return false; } _
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