diff options
Diffstat (limited to 'test/syscalls/linux/arch_prctl.cc')
-rw-r--r-- | test/syscalls/linux/arch_prctl.cc | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/test/syscalls/linux/arch_prctl.cc b/test/syscalls/linux/arch_prctl.cc deleted file mode 100644 index 81bf5a775..000000000 --- a/test/syscalls/linux/arch_prctl.cc +++ /dev/null @@ -1,48 +0,0 @@ -// Copyright 2018 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 <asm/prctl.h> -#include <sys/prctl.h> - -#include "gtest/gtest.h" -#include "test/util/test_util.h" - -// glibc does not provide a prototype for arch_prctl() so declare it here. -extern "C" int arch_prctl(int code, uintptr_t addr); - -namespace gvisor { -namespace testing { - -namespace { - -TEST(ArchPrctlTest, GetSetFS) { - uintptr_t orig; - const uintptr_t kNonCanonicalFsbase = 0x4141414142424242; - - // Get the original FS.base and then set it to the same value (this is - // intentional because FS.base is the TLS pointer so we cannot change it - // arbitrarily). - ASSERT_THAT(arch_prctl(ARCH_GET_FS, reinterpret_cast<uintptr_t>(&orig)), - SyscallSucceeds()); - ASSERT_THAT(arch_prctl(ARCH_SET_FS, orig), SyscallSucceeds()); - - // Trying to set FS.base to a non-canonical value should return an error. - ASSERT_THAT(arch_prctl(ARCH_SET_FS, kNonCanonicalFsbase), - SyscallFailsWithErrno(EPERM)); -} - -} // namespace - -} // namespace testing -} // namespace gvisor |