50 lines
1.6 KiB
Diff
50 lines
1.6 KiB
Diff
From 8230fefd2495d1fb7fa72c680dc10ae4d10fde61 Mon Sep 17 00:00:00 2001
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From: "H.J. Lu" <hjl.tools@gmail.com>
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Date: Tue, 28 Mar 2023 13:52:36 -0700
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Subject: [PATCH v2 08/15] x86/cet: Check CPU_FEATURE_ACTIVE in permissive mode
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Verify that CPU_FEATURE_ACTIVE works properly in permissive mode.
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---
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sysdeps/x86/Makefile | 1 +
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sysdeps/x86/tst-cet-legacy-4.c | 5 +++++
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2 files changed, 6 insertions(+)
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diff --git a/sysdeps/x86/Makefile b/sysdeps/x86/Makefile
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index b8b98177e0..6ceefe16c7 100644
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--- a/sysdeps/x86/Makefile
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+++ b/sysdeps/x86/Makefile
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@@ -174,6 +174,7 @@ CFLAGS-tst-cet-legacy-mod-1.c += -fcf-protection=none
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CFLAGS-tst-cet-legacy-mod-2.c += -fcf-protection=none
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CFLAGS-tst-cet-legacy-3.c += -fcf-protection=none
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CFLAGS-tst-cet-legacy-4.c += -fcf-protection=branch
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+CPPFLAGS-tst-cet-legacy-4a.c += -DCET_IS_PERMISSIVE=1
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CFLAGS-tst-cet-legacy-4a.c += -fcf-protection
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CFLAGS-tst-cet-legacy-4b.c += -fcf-protection
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CFLAGS-tst-cet-legacy-mod-4.c += -fcf-protection=none
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diff --git a/sysdeps/x86/tst-cet-legacy-4.c b/sysdeps/x86/tst-cet-legacy-4.c
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index d75fb0e61c..c098120253 100644
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--- a/sysdeps/x86/tst-cet-legacy-4.c
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+++ b/sysdeps/x86/tst-cet-legacy-4.c
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@@ -21,6 +21,7 @@
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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+#include <sys/platform/x86.h>
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#include <support/check.h>
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@@ -40,6 +41,10 @@ do_test (void)
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return 0;
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}
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+#ifdef CET_IS_PERMISSIVE
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+ TEST_VERIFY (!CPU_FEATURE_ACTIVE (IBT) && !CPU_FEATURE_ACTIVE (SHSTK));
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+#endif
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+
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fp = dlsym (h, "test");
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if (fp == NULL)
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FAIL_EXIT1 ("cannot get symbol 'test': %s\n", dlerror ());
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--
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2.40.1
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