1 files changed, 0 insertions, 202 deletions
diff --git a/test/syscalls/linux/rseq.cc b/test/syscalls/linux/rseq.cc
deleted file mode 100644
index 94f9154a0..000000000
--- a/test/syscalls/linux/rseq.cc
+++ /dev/null
@@ -1,202 +0,0 @@
-// 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.
-
-#include <errno.h>
-#include <signal.h>
-#include <sys/syscall.h>
-#include <sys/types.h>
-#include <sys/wait.h>
-#include <unistd.h>
-
-#include "gtest/gtest.h"
-#include "test/syscalls/linux/rseq/test.h"
-#include "test/syscalls/linux/rseq/uapi.h"
-#include "test/util/logging.h"
-#include "test/util/multiprocess_util.h"
-#include "test/util/posix_error.h"
-#include "test/util/test_util.h"
-
-namespace gvisor {
-namespace testing {
-
-namespace {
-
-using ::testing::AnyOf;
-using ::testing::Eq;
-
-// Syscall test for rseq (restartable sequences).
-//
-// We must be very careful about how these tests are written. Each thread may
-// only have one struct rseq registration, which may be done automatically at
-// thread start (as of 2019-11-13, glibc does *not* support rseq and thus does
-// not do so, but other libraries do).
-//
-// Testing of rseq is thus done primarily in a child process with no
-// registration. This means exec'ing a nostdlib binary, as rseq registration can
-// only be cleared by execve (or knowing the old rseq address), and glibc (based
-// on the current unmerged patches) register rseq before calling main()).
-
-int RSeq(struct rseq* rseq, uint32_t rseq_len, int flags, uint32_t sig) {
-  return syscall(kRseqSyscall, rseq, rseq_len, flags, sig);
-}
-
-// Returns true if this kernel supports the rseq syscall.
-PosixErrorOr<bool> RSeqSupported() {
-  // We have to be careful here, there are three possible cases:
-  //
-  // 1. rseq is not supported -> ENOSYS
-  // 2. rseq is supported and not registered -> success, but we should
-  //    unregister.
-  // 3. rseq is supported and registered -> EINVAL (most likely).
-
-  // The only validation done on new registrations is that rseq is aligned and
-  // writable.
-  rseq rseq = {};
-  int ret = RSeq(&rseq, sizeof(rseq), 0, 0);
-  if (ret == 0) {
-    // Successfully registered, rseq is supported. Unregister.
-    ret = RSeq(&rseq, sizeof(rseq), kRseqFlagUnregister, 0);
-    if (ret != 0) {
-      return PosixError(errno);
-    }
-    return true;
-  }
-
-  switch (errno) {
-    case ENOSYS:
-      // Not supported.
-      return false;
-    case EINVAL:
-      // Supported, but already registered. EINVAL returned because we provided
-      // a different address.
-      return true;
-    default:
-      // Unknown error.
-      return PosixError(errno);
-  }
-}
-
-constexpr char kRseqBinary[] = "test/syscalls/linux/rseq/rseq";
-
-void RunChildTest(std::string test_case, int want_status) {
-  std::string path = RunfilePath(kRseqBinary);
-
-  pid_t child_pid = -1;
-  int execve_errno = 0;
-  auto cleanup = ASSERT_NO_ERRNO_AND_VALUE(
-      ForkAndExec(path, {path, test_case}, {}, &child_pid, &execve_errno));
-
-  ASSERT_GT(child_pid, 0);
-  ASSERT_EQ(execve_errno, 0);
-
-  int status = 0;
-  ASSERT_THAT(RetryEINTR(waitpid)(child_pid, &status, 0), SyscallSucceeds());
-  ASSERT_THAT(status, AnyOf(Eq(want_status), Eq(128 + want_status)));
-}
-
-// Test that rseq must be aligned.
-TEST(RseqTest, Unaligned) {
-  SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(RSeqSupported()));
-
-  RunChildTest(kRseqTestUnaligned, 0);
-}
-
-// Sanity test that registration works.
-TEST(RseqTest, Register) {
-  SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(RSeqSupported()));
-
-  RunChildTest(kRseqTestRegister, 0);
-}
-
-// Registration can't be done twice.
-TEST(RseqTest, DoubleRegister) {
-  SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(RSeqSupported()));
-
-  RunChildTest(kRseqTestDoubleRegister, 0);
-}
-
-// Registration can be done again after unregister.
-TEST(RseqTest, RegisterUnregister) {
-  SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(RSeqSupported()));
-
-  RunChildTest(kRseqTestRegisterUnregister, 0);
-}
-
-// The pointer to rseq must match on register/unregister.
-TEST(RseqTest, UnregisterDifferentPtr) {
-  SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(RSeqSupported()));
-
-  RunChildTest(kRseqTestUnregisterDifferentPtr, 0);
-}
-
-// The signature must match on register/unregister.
-TEST(RseqTest, UnregisterDifferentSignature) {
-  SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(RSeqSupported()));
-
-  RunChildTest(kRseqTestUnregisterDifferentSignature, 0);
-}
-
-// The CPU ID is initialized.
-TEST(RseqTest, CPU) {
-  SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(RSeqSupported()));
-
-  RunChildTest(kRseqTestCPU, 0);
-}
-
-// Critical section is eventually aborted.
-TEST(RseqTest, Abort) {
-  SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(RSeqSupported()));
-
-  RunChildTest(kRseqTestAbort, 0);
-}
-
-// Abort may be before the critical section.
-TEST(RseqTest, AbortBefore) {
-  SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(RSeqSupported()));
-
-  RunChildTest(kRseqTestAbortBefore, 0);
-}
-
-// Signature must match.
-TEST(RseqTest, AbortSignature) {
-  SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(RSeqSupported()));
-
-  RunChildTest(kRseqTestAbortSignature, SIGSEGV);
-}
-
-// Abort must not be in the critical section.
-TEST(RseqTest, AbortPreCommit) {
-  SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(RSeqSupported()));
-
-  RunChildTest(kRseqTestAbortPreCommit, SIGSEGV);
-}
-
-// rseq.rseq_cs is cleared on abort.
-TEST(RseqTest, AbortClearsCS) {
-  SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(RSeqSupported()));
-
-  RunChildTest(kRseqTestAbortClearsCS, 0);
-}
-
-// rseq.rseq_cs is cleared on abort outside of critical section.
-TEST(RseqTest, InvalidAbortClearsCS) {
-  SKIP_IF(!ASSERT_NO_ERRNO_AND_VALUE(RSeqSupported()));
-
-  RunChildTest(kRseqTestInvalidAbortClearsCS, 0);
-}
-
-}  // namespace
-
-}  // namespace testing
-}  // namespace gvisor