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-rw-r--r--test/syscalls/linux/rseq/rseq.cc377
1 files changed, 0 insertions, 377 deletions
diff --git a/test/syscalls/linux/rseq/rseq.cc b/test/syscalls/linux/rseq/rseq.cc
deleted file mode 100644
index 6f5d38bba..000000000
--- a/test/syscalls/linux/rseq/rseq.cc
+++ /dev/null
@@ -1,377 +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 "test/syscalls/linux/rseq/critical.h"
-#include "test/syscalls/linux/rseq/syscalls.h"
-#include "test/syscalls/linux/rseq/test.h"
-#include "test/syscalls/linux/rseq/types.h"
-#include "test/syscalls/linux/rseq/uapi.h"
-
-namespace gvisor {
-namespace testing {
-
-extern "C" int main(int argc, char** argv, char** envp);
-
-// Standalone initialization before calling main().
-extern "C" void __init(uintptr_t* sp) {
- int argc = sp[0];
- char** argv = reinterpret_cast<char**>(&sp[1]);
- char** envp = &argv[argc + 1];
-
- // Call main() and exit.
- sys_exit_group(main(argc, argv, envp));
-
- // sys_exit_group does not return
-}
-
-int strcmp(const char* s1, const char* s2) {
- const unsigned char* p1 = reinterpret_cast<const unsigned char*>(s1);
- const unsigned char* p2 = reinterpret_cast<const unsigned char*>(s2);
-
- while (*p1 == *p2) {
- if (!*p1) {
- return 0;
- }
- ++p1;
- ++p2;
- }
- return static_cast<int>(*p1) - static_cast<int>(*p2);
-}
-
-int sys_rseq(struct rseq* rseq, uint32_t rseq_len, int flags, uint32_t sig) {
- return raw_syscall(kRseqSyscall, rseq, rseq_len, flags, sig);
-}
-
-// Test that rseq must be aligned.
-int TestUnaligned() {
- constexpr uintptr_t kRequiredAlignment = alignof(rseq);
-
- char buf[2 * kRequiredAlignment] = {};
- uintptr_t ptr = reinterpret_cast<uintptr_t>(&buf[0]);
- if ((ptr & (kRequiredAlignment - 1)) == 0) {
- // buf is already aligned. Misalign it.
- ptr++;
- }
-
- int ret = sys_rseq(reinterpret_cast<rseq*>(ptr), sizeof(rseq), 0, 0);
- if (sys_errno(ret) != EINVAL) {
- return 1;
- }
- return 0;
-}
-
-// Sanity test that registration works.
-int TestRegister() {
- struct rseq r = {};
- int ret = sys_rseq(&r, sizeof(r), 0, 0);
- if (sys_errno(ret) != 0) {
- return 1;
- }
- return 0;
-}
-
-// Registration can't be done twice.
-int TestDoubleRegister() {
- struct rseq r = {};
- int ret = sys_rseq(&r, sizeof(r), 0, 0);
- if (sys_errno(ret) != 0) {
- return 1;
- }
-
- ret = sys_rseq(&r, sizeof(r), 0, 0);
- if (sys_errno(ret) != EBUSY) {
- return 1;
- }
-
- return 0;
-}
-
-// Registration can be done again after unregister.
-int TestRegisterUnregister() {
- struct rseq r = {};
-
- int ret = sys_rseq(&r, sizeof(r), 0, 0);
- if (sys_errno(ret) != 0) {
- return 1;
- }
-
- ret = sys_rseq(&r, sizeof(r), kRseqFlagUnregister, 0);
- if (sys_errno(ret) != 0) {
- return 1;
- }
-
- ret = sys_rseq(&r, sizeof(r), 0, 0);
- if (sys_errno(ret) != 0) {
- return 1;
- }
-
- return 0;
-}
-
-// The pointer to rseq must match on register/unregister.
-int TestUnregisterDifferentPtr() {
- struct rseq r = {};
-
- int ret = sys_rseq(&r, sizeof(r), 0, 0);
- if (sys_errno(ret) != 0) {
- return 1;
- }
-
- struct rseq r2 = {};
-
- ret = sys_rseq(&r2, sizeof(r2), kRseqFlagUnregister, 0);
- if (sys_errno(ret) != EINVAL) {
- return 1;
- }
-
- return 0;
-}
-
-// The signature must match on register/unregister.
-int TestUnregisterDifferentSignature() {
- constexpr int kSignature = 0;
-
- struct rseq r = {};
- int ret = sys_rseq(&r, sizeof(r), 0, kSignature);
- if (sys_errno(ret) != 0) {
- return 1;
- }
-
- ret = sys_rseq(&r, sizeof(r), kRseqFlagUnregister, kSignature + 1);
- if (sys_errno(ret) != EPERM) {
- return 1;
- }
-
- return 0;
-}
-
-// The CPU ID is initialized.
-int TestCPU() {
- struct rseq r = {};
- r.cpu_id = kRseqCPUIDUninitialized;
-
- int ret = sys_rseq(&r, sizeof(r), 0, 0);
- if (sys_errno(ret) != 0) {
- return 1;
- }
-
- if (__atomic_load_n(&r.cpu_id, __ATOMIC_RELAXED) < 0) {
- return 1;
- }
- if (__atomic_load_n(&r.cpu_id_start, __ATOMIC_RELAXED) < 0) {
- return 1;
- }
-
- return 0;
-}
-
-// Critical section is eventually aborted.
-int TestAbort() {
- struct rseq r = {};
- int ret = sys_rseq(&r, sizeof(r), 0, kRseqSignature);
- if (sys_errno(ret) != 0) {
- return 1;
- }
-
- struct rseq_cs cs = {};
- cs.version = 0;
- cs.flags = 0;
- cs.start_ip = reinterpret_cast<uint64_t>(&rseq_loop_start);
- cs.post_commit_offset = reinterpret_cast<uint64_t>(&rseq_loop_post_commit) -
- reinterpret_cast<uint64_t>(&rseq_loop_start);
- cs.abort_ip = reinterpret_cast<uint64_t>(&rseq_loop_abort);
-
- // Loops until abort. If this returns then abort occurred.
- rseq_loop(&r, &cs);
-
- return 0;
-}
-
-// Abort may be before the critical section.
-int TestAbortBefore() {
- struct rseq r = {};
- int ret = sys_rseq(&r, sizeof(r), 0, kRseqSignature);
- if (sys_errno(ret) != 0) {
- return 1;
- }
-
- struct rseq_cs cs = {};
- cs.version = 0;
- cs.flags = 0;
- cs.start_ip = reinterpret_cast<uint64_t>(&rseq_loop_start);
- cs.post_commit_offset = reinterpret_cast<uint64_t>(&rseq_loop_post_commit) -
- reinterpret_cast<uint64_t>(&rseq_loop_start);
- cs.abort_ip = reinterpret_cast<uint64_t>(&rseq_loop_early_abort);
-
- // Loops until abort. If this returns then abort occurred.
- rseq_loop(&r, &cs);
-
- return 0;
-}
-
-// Signature must match.
-int TestAbortSignature() {
- struct rseq r = {};
- int ret = sys_rseq(&r, sizeof(r), 0, kRseqSignature + 1);
- if (sys_errno(ret) != 0) {
- return 1;
- }
-
- struct rseq_cs cs = {};
- cs.version = 0;
- cs.flags = 0;
- cs.start_ip = reinterpret_cast<uint64_t>(&rseq_loop_start);
- cs.post_commit_offset = reinterpret_cast<uint64_t>(&rseq_loop_post_commit) -
- reinterpret_cast<uint64_t>(&rseq_loop_start);
- cs.abort_ip = reinterpret_cast<uint64_t>(&rseq_loop_abort);
-
- // Loops until abort. This should SIGSEGV on abort.
- rseq_loop(&r, &cs);
-
- return 1;
-}
-
-// Abort must not be in the critical section.
-int TestAbortPreCommit() {
- struct rseq r = {};
- int ret = sys_rseq(&r, sizeof(r), 0, kRseqSignature + 1);
- if (sys_errno(ret) != 0) {
- return 1;
- }
-
- struct rseq_cs cs = {};
- cs.version = 0;
- cs.flags = 0;
- cs.start_ip = reinterpret_cast<uint64_t>(&rseq_loop_start);
- cs.post_commit_offset = reinterpret_cast<uint64_t>(&rseq_loop_post_commit) -
- reinterpret_cast<uint64_t>(&rseq_loop_start);
- cs.abort_ip = reinterpret_cast<uint64_t>(&rseq_loop_pre_commit);
-
- // Loops until abort. This should SIGSEGV on abort.
- rseq_loop(&r, &cs);
-
- return 1;
-}
-
-// rseq.rseq_cs is cleared on abort.
-int TestAbortClearsCS() {
- struct rseq r = {};
- int ret = sys_rseq(&r, sizeof(r), 0, kRseqSignature);
- if (sys_errno(ret) != 0) {
- return 1;
- }
-
- struct rseq_cs cs = {};
- cs.version = 0;
- cs.flags = 0;
- cs.start_ip = reinterpret_cast<uint64_t>(&rseq_loop_start);
- cs.post_commit_offset = reinterpret_cast<uint64_t>(&rseq_loop_post_commit) -
- reinterpret_cast<uint64_t>(&rseq_loop_start);
- cs.abort_ip = reinterpret_cast<uint64_t>(&rseq_loop_abort);
-
- // Loops until abort. If this returns then abort occurred.
- rseq_loop(&r, &cs);
-
- if (__atomic_load_n(&r.rseq_cs, __ATOMIC_RELAXED)) {
- return 1;
- }
-
- return 0;
-}
-
-// rseq.rseq_cs is cleared on abort outside of critical section.
-int TestInvalidAbortClearsCS() {
- struct rseq r = {};
- int ret = sys_rseq(&r, sizeof(r), 0, kRseqSignature);
- if (sys_errno(ret) != 0) {
- return 1;
- }
-
- struct rseq_cs cs = {};
- cs.version = 0;
- cs.flags = 0;
- cs.start_ip = reinterpret_cast<uint64_t>(&rseq_loop_start);
- cs.post_commit_offset = reinterpret_cast<uint64_t>(&rseq_loop_post_commit) -
- reinterpret_cast<uint64_t>(&rseq_loop_start);
- cs.abort_ip = reinterpret_cast<uint64_t>(&rseq_loop_abort);
-
- __atomic_store_n(&r.rseq_cs, &cs, __ATOMIC_RELAXED);
-
- // When the next abort condition occurs, the kernel will clear cs once it
- // determines we aren't in the critical section.
- while (1) {
- if (!__atomic_load_n(&r.rseq_cs, __ATOMIC_RELAXED)) {
- break;
- }
- }
-
- return 0;
-}
-
-// Exit codes:
-// 0 - Pass
-// 1 - Fail
-// 2 - Missing argument
-// 3 - Unknown test case
-extern "C" int main(int argc, char** argv, char** envp) {
- if (argc != 2) {
- // Usage: rseq <test case>
- return 2;
- }
-
- if (strcmp(argv[1], kRseqTestUnaligned) == 0) {
- return TestUnaligned();
- }
- if (strcmp(argv[1], kRseqTestRegister) == 0) {
- return TestRegister();
- }
- if (strcmp(argv[1], kRseqTestDoubleRegister) == 0) {
- return TestDoubleRegister();
- }
- if (strcmp(argv[1], kRseqTestRegisterUnregister) == 0) {
- return TestRegisterUnregister();
- }
- if (strcmp(argv[1], kRseqTestUnregisterDifferentPtr) == 0) {
- return TestUnregisterDifferentPtr();
- }
- if (strcmp(argv[1], kRseqTestUnregisterDifferentSignature) == 0) {
- return TestUnregisterDifferentSignature();
- }
- if (strcmp(argv[1], kRseqTestCPU) == 0) {
- return TestCPU();
- }
- if (strcmp(argv[1], kRseqTestAbort) == 0) {
- return TestAbort();
- }
- if (strcmp(argv[1], kRseqTestAbortBefore) == 0) {
- return TestAbortBefore();
- }
- if (strcmp(argv[1], kRseqTestAbortSignature) == 0) {
- return TestAbortSignature();
- }
- if (strcmp(argv[1], kRseqTestAbortPreCommit) == 0) {
- return TestAbortPreCommit();
- }
- if (strcmp(argv[1], kRseqTestAbortClearsCS) == 0) {
- return TestAbortClearsCS();
- }
- if (strcmp(argv[1], kRseqTestInvalidAbortClearsCS) == 0) {
- return TestInvalidAbortClearsCS();
- }
-
- return 3;
-}
-
-} // namespace testing
-} // namespace gvisor
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-01 06:36:33 +0000