[08/17] x86/cet: Check CPU_FEATURE_ACTIVE in permissive mode
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redhat-pt-bot/TryBot-apply_patch |
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Patch applied to master at the time it was sent
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linaro-tcwg-bot/tcwg_glibc_build--master-aarch64 |
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Commit Message
Verify that CPU_FEATURE_ACTIVE works properly in permissive mode.
---
sysdeps/x86/Makefile | 1 +
sysdeps/x86/tst-cet-legacy-4.c | 5 +++++
2 files changed, 6 insertions(+)
@@ -174,6 +174,7 @@ CFLAGS-tst-cet-legacy-mod-1.c += -fcf-protection=none
CFLAGS-tst-cet-legacy-mod-2.c += -fcf-protection=none
CFLAGS-tst-cet-legacy-3.c += -fcf-protection=none
CFLAGS-tst-cet-legacy-4.c += -fcf-protection=branch
+CPPFLAGS-tst-cet-legacy-4a.c += -DCET_IS_PERMISSIVE=1
CFLAGS-tst-cet-legacy-4a.c += -fcf-protection
CFLAGS-tst-cet-legacy-4b.c += -fcf-protection
CFLAGS-tst-cet-legacy-mod-4.c += -fcf-protection=none
@@ -21,6 +21,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <sys/platform/x86.h>
#include <support/check.h>
@@ -40,6 +41,10 @@ do_test (void)
return 0;
}
+#ifdef CET_IS_PERMISSIVE
+ TEST_VERIFY (!CPU_FEATURE_ACTIVE (IBT) && !CPU_FEATURE_ACTIVE (SHSTK));
+#endif
+
fp = dlsym (h, "test");
if (fp == NULL)
FAIL_EXIT1 ("cannot get symbol 'test': %s\n", dlerror ());