Add tests for rseq(2)

Add a decent set of syscall tests for rseq(2). These are a bit awkward because
of issues with library integration. libc may register rseq on thread start
(including before main on the initial thread), precluding much testing. Thus we
run tests in a libc-free subprocess.

Support for rseq(2) in gVisor will come in a later commit.

PiperOrigin-RevId: 284595994

1 files changed, 43 insertions, 0 deletions

diff --git a/test/syscalls/linux/rseq/test.h b/test/syscalls/linux/rseq/test.h
new file mode 100644
index 000000000..3b7bb74b1
--- /dev/null
+++ b/test/syscalls/linux/rseq/test.h
@@ -0,0 +1,43 @@
+// Copyright 2019 The gVisor Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef GVISOR_TEST_SYSCALLS_LINUX_RSEQ_TEST_H_
+#define GVISOR_TEST_SYSCALLS_LINUX_RSEQ_TEST_H_
+
+namespace gvisor {
+namespace testing {
+
+// Test cases supported by rseq binary.
+
+inline constexpr char kRseqTestUnaligned[] = "unaligned";
+inline constexpr char kRseqTestRegister[] = "register";
+inline constexpr char kRseqTestDoubleRegister[] = "double-register";
+inline constexpr char kRseqTestRegisterUnregister[] = "register-unregister";
+inline constexpr char kRseqTestUnregisterDifferentPtr[] =
+    "unregister-different-ptr";
+inline constexpr char kRseqTestUnregisterDifferentSignature[] =
+    "unregister-different-signature";
+inline constexpr char kRseqTestCPU[] = "cpu";
+inline constexpr char kRseqTestAbort[] = "abort";
+inline constexpr char kRseqTestAbortBefore[] = "abort-before";
+inline constexpr char kRseqTestAbortSignature[] = "abort-signature";
+inline constexpr char kRseqTestAbortPreCommit[] = "abort-precommit";
+inline constexpr char kRseqTestAbortClearsCS[] = "abort-clears-cs";
+inline constexpr char kRseqTestInvalidAbortClearsCS[] =
+    "invalid-abort-clears-cs";
+
+}  // namespace testing
+}  // namespace gvisor
+
+#endif  // GVISOR_TEST_SYSCALLS_LINUX_RSEQ_TEST_H_