On Fri, Aug 02, 2019 at 06:02:57PM +0100, Cristian Marussi wrote:
Added a simple fake_sigreturn testcase which builds a ucontext_t
Add
without the required fpsimd_context and place it onto the stack. Expects a SIGSEGV on test PASS.
Signed-off-by: Cristian Marussi cristian.marussi@arm.com
.../arm64/signal/testcases/.gitignore | 1 + .../testcases/fake_sigreturn_missing_fpsimd.c | 44 +++++++++++++++++++ 2 files changed, 45 insertions(+) create mode 100644 tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_missing_fpsimd.c
diff --git a/tools/testing/selftests/arm64/signal/testcases/.gitignore b/tools/testing/selftests/arm64/signal/testcases/.gitignore index cf2a73599818..17d1c5e73319 100644 --- a/tools/testing/selftests/arm64/signal/testcases/.gitignore +++ b/tools/testing/selftests/arm64/signal/testcases/.gitignore @@ -6,3 +6,4 @@ mangle_pstate_invalid_mode_el3 mangle_pstate_ssbs_regs fake_sigreturn_bad_magic fake_sigreturn_bad_size_for_magic0 +fake_sigreturn_missing_fpsimd diff --git a/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_missing_fpsimd.c b/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_missing_fpsimd.c new file mode 100644 index 000000000000..b8dd57ce6844 --- /dev/null +++ b/tools/testing/selftests/arm64/signal/testcases/fake_sigreturn_missing_fpsimd.c @@ -0,0 +1,44 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright (C) 2019 ARM Limited */
signal.h?
+#include <stdio.h> +#include <ucontext.h>
+#include "test_signals_utils.h" +#include "testcases.h"
+struct fake_sigframe sf;
+static int fake_sigreturn_missing_fpsimd_run(struct tdescr *td,
siginfo_t *si, ucontext_t *uc)+{
- size_t resv_sz, offset;
- struct _aarch64_ctx *head = GET_SF_RESV_HEAD(sf);
- /* just to fill the ucontext_t with something real */
- if (!get_current_context(td, &sf.uc))
return 1;- resv_sz = GET_SF_RESV_SIZE(sf);
- head = get_header(head, FPSIMD_MAGIC, resv_sz, &offset);
- /* just give up and timeout if still not enough space */
- if (head && resv_sz - offset >= HDR_SZ) {
fprintf(stderr, "Mangling template header. Spare space:%zd\n",resv_sz - offset);/* Just overwrite fpsmid_context */write_terminator_record(head);ASSERT_BAD_CONTEXT(&sf.uc);fake_sigreturn(&sf, sizeof(sf), 16);- }
- return 1;
+}
[...]
Seems reasonable otherwise.
Cheers ---Dave