From: Cristian Marussi <cristian.marussi@arm.com>
To: linux-kselftest@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, shuah@kernel.org
Cc: andreyknvl@google.com, dave.martin@arm.com, amit.kachhap@arm.com
Subject: [PATCH v5 11/11] kselftest: arm64: fake_sigreturn_misaligned_sp
Date: Mon, 2 Sep 2019 12:29:32 +0100 [thread overview]
Message-ID: <20190902112932.36129-12-cristian.marussi@arm.com> (raw)
In-Reply-To: <20190902112932.36129-1-cristian.marussi@arm.com>
Add a simple fake_sigreturn testcase which places a valid sigframe on a
non-16 bytes aligned SP. Expects a SIGSEGV on test PASS.
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
---
v3 --> v4
- fix commit
- use new fake_sigreturn misalig_bytes params
- removed TODO
- added test description
---
.../testcases/fake_sigreturn_misaligned_sp.c | 37 +++++++++++++++++++
1 file changed, 37 insertions(+)
create mode 100644 tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_misaligned_sp.c
diff --git a/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_misaligned_sp.c b/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_misaligned_sp.c
new file mode 100644
index 000000000000..1e089e66f9f3
--- /dev/null
+++ b/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_misaligned_sp.c
@@ -0,0 +1,37 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019 ARM Limited
+ *
+ * Place a fake sigframe on the stack at a misaligned SP: on sigreturn
+ * Kernel must spot this attempt and the test case is expected to be
+ * terminated via SEGV.
+ */
+
+#include <signal.h>
+#include <ucontext.h>
+
+#include "test_signals_utils.h"
+#include "testcases.h"
+
+struct fake_sigframe sf;
+
+static int fake_sigreturn_misaligned_run(struct tdescr *td,
+ siginfo_t *si, ucontext_t *uc)
+{
+ /* just to fill the ucontext_t with something real */
+ if (!get_current_context(td, &sf.uc))
+ return 1;
+
+ /* Forcing sigframe on misaligned SP (16 + 3) */
+ fake_sigreturn(&sf, sizeof(sf), 3);
+
+ return 1;
+}
+
+struct tdescr tde = {
+ .name = "FAKE_SIGRETURN_MISALIGNED_SP",
+ .descr = "Triggers a sigreturn with a misaligned sigframe",
+ .sig_ok = SIGSEGV,
+ .timeout = 3,
+ .run = fake_sigreturn_misaligned_run,
+};
--
2.17.1
next prev parent reply other threads:[~2019-09-02 11:30 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-02 11:29 [PATCH v5 00/11] Add arm64/signal initial kselftest support Cristian Marussi
2019-09-02 11:29 ` [PATCH v5 01/11] kselftest: arm64: add skeleton Makefile Cristian Marussi
2019-09-03 9:26 ` Amit Kachhap
2019-09-03 9:45 ` Cristian Marussi
2019-09-05 17:57 ` Cristian Marussi
2019-09-09 12:42 ` Amit Kachhap
2019-09-16 11:41 ` Dave Martin
2019-09-04 11:47 ` Dave Martin
2019-09-05 13:45 ` Cristian Marussi
2019-09-05 14:18 ` Dave Martin
2019-09-02 11:29 ` [PATCH v5 02/11] kselftest: arm64: add common utils and one testcase Cristian Marussi
2019-09-04 11:47 ` Dave Martin
2019-09-06 10:26 ` Cristian Marussi
2019-09-16 11:40 ` Dave Martin
2019-09-02 11:29 ` [PATCH v5 03/11] kselftest: arm64: mangle_pstate_invalid_daif_bits Cristian Marussi
2019-09-04 11:48 ` Dave Martin
2019-09-02 11:29 ` [PATCH v5 04/11] kselftest: arm64: mangle_pstate_invalid_mode_el[123][ht] Cristian Marussi
2019-09-04 11:48 ` Dave Martin
2019-09-02 11:29 ` [PATCH v5 05/11] kselftest: arm64: mangle_pstate_ssbs_regs Cristian Marussi
2019-09-04 11:48 ` Dave Martin
2019-09-09 15:51 ` Cristian Marussi
2019-09-02 11:29 ` [PATCH v5 06/11] kselftest: arm64: fake_sigreturn_bad_magic Cristian Marussi
2019-09-04 11:48 ` Dave Martin
2019-09-09 17:31 ` Cristian Marussi
2019-09-02 11:29 ` [PATCH v5 07/11] kselftest: arm64: fake_sigreturn_bad_size_for_magic0 Cristian Marussi
2019-09-04 11:49 ` Dave Martin
2019-09-09 17:47 ` Cristian Marussi
2019-09-02 11:29 ` [PATCH v5 08/11] kselftest: arm64: fake_sigreturn_missing_fpsimd Cristian Marussi
2019-09-04 11:49 ` Dave Martin
2019-09-09 17:51 ` Cristian Marussi
2019-09-02 11:29 ` [PATCH v5 09/11] kselftest: arm64: fake_sigreturn_duplicated_fpsimd Cristian Marussi
2019-09-04 11:49 ` Dave Martin
2019-09-05 12:15 ` Cristian Marussi
2019-09-05 12:39 ` Dave Martin
2019-09-05 13:32 ` Cristian Marussi
2019-09-05 14:20 ` Dave Martin
2019-09-09 18:03 ` Cristian Marussi
2019-09-02 11:29 ` [PATCH v5 10/11] kselftest: arm64: fake_sigreturn_bad_size Cristian Marussi
2019-09-04 11:49 ` Dave Martin
2019-09-09 18:11 ` Cristian Marussi
2019-09-02 11:29 ` Cristian Marussi [this message]
2019-09-04 11:49 ` [PATCH v5 11/11] kselftest: arm64: fake_sigreturn_misaligned_sp Dave Martin
2019-09-09 18:32 ` Cristian Marussi
2019-09-04 11:47 ` [PATCH v5 00/11] Add arm64/signal initial kselftest support Dave Martin
2019-09-10 12:25 ` Cristian Marussi
2019-09-16 12:14 ` Dave Martin
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