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-rw-r--r--test/syscalls/linux/BUILD1
-rw-r--r--test/syscalls/linux/concurrency.cc8
-rw-r--r--test/syscalls/linux/kill.cc19
-rw-r--r--test/syscalls/linux/ptrace.cc65
-rw-r--r--test/syscalls/linux/sync_file_range.cc1
-rw-r--r--test/syscalls/linux/timers.cc3
-rw-r--r--test/syscalls/linux/wait.cc1
7 files changed, 66 insertions, 32 deletions
diff --git a/test/syscalls/linux/BUILD b/test/syscalls/linux/BUILD
index a8a6e15ee..41d476481 100644
--- a/test/syscalls/linux/BUILD
+++ b/test/syscalls/linux/BUILD
@@ -1460,7 +1460,6 @@ cc_binary(
"//test/util:logging",
"//test/util:multiprocess_util",
"//test/util:signal_util",
- "//test/util:test_main",
"//test/util:test_util",
"//test/util:thread_util",
"@com_google_absl//absl/time",
diff --git a/test/syscalls/linux/concurrency.cc b/test/syscalls/linux/concurrency.cc
index 2c13b315c..f5a941ca8 100644
--- a/test/syscalls/linux/concurrency.cc
+++ b/test/syscalls/linux/concurrency.cc
@@ -72,8 +72,7 @@ TEST(ConcurrencyTest, MultiProcessMultithreaded) {
}
});
- pid_t child_pid;
- ASSERT_THAT(child_pid = fork(), SyscallSucceeds());
+ pid_t child_pid = fork();
if (child_pid == 0) {
// Busy wait without making any blocking syscalls.
auto end = absl::Now() + absl::Seconds(5);
@@ -81,6 +80,7 @@ TEST(ConcurrencyTest, MultiProcessMultithreaded) {
}
_exit(0);
}
+ ASSERT_THAT(child_pid, SyscallSucceeds());
absl::SleepFor(absl::Seconds(1));
@@ -99,13 +99,13 @@ TEST(ConcurrencyTest, MultiProcessMultithreaded) {
// never yields.
TEST(ConcurrencyTest, MultiProcessConcurrency) {
- pid_t child_pid;
- ASSERT_THAT(child_pid = fork(), SyscallSucceeds());
+ pid_t child_pid = fork();
if (child_pid == 0) {
while (true) {
}
__builtin_unreachable();
}
+ ASSERT_THAT(child_pid, SyscallSucceeds());
absl::SleepFor(absl::Seconds(5));
diff --git a/test/syscalls/linux/kill.cc b/test/syscalls/linux/kill.cc
index 18ba8fb16..de50daf0b 100644
--- a/test/syscalls/linux/kill.cc
+++ b/test/syscalls/linux/kill.cc
@@ -70,7 +70,7 @@ TEST(KillTest, CanKillAllPIDs) {
sa.sa_sigaction = SigHandler;
sigfillset(&sa.sa_mask);
sa.sa_flags = SA_SIGINFO;
- auto cleanup = ASSERT_NO_ERRNO_AND_VALUE(ScopedSigaction(SIGWINCH, sa));
+ auto cleanup = ScopedSigaction(SIGWINCH, sa).ValueOrDie();
// Indicate to the parent that we're ready.
write_fd.reset();
@@ -81,7 +81,7 @@ TEST(KillTest, CanKillAllPIDs) {
}
}
- EXPECT_THAT(pid, SyscallSucceeds());
+ ASSERT_THAT(pid, SyscallSucceeds());
write_fd.reset();
@@ -111,7 +111,7 @@ TEST(KillTest, CannotKillInvalidPID) {
_exit(0);
}
- EXPECT_THAT(fake_pid, SyscallSucceeds());
+ ASSERT_THAT(fake_pid, SyscallSucceeds());
int status;
ASSERT_THAT(RetryEINTR(waitpid)(fake_pid, &status, 0),
@@ -134,7 +134,7 @@ TEST(KillTest, CanKillRemoteProcess) {
}
}
- EXPECT_THAT(pid, SyscallSucceeds());
+ ASSERT_THAT(pid, SyscallSucceeds());
EXPECT_THAT(kill(pid, SIGKILL), SyscallSucceeds());
@@ -182,7 +182,7 @@ TEST(KillTest, SetPgid) {
}
}
- EXPECT_THAT(pid, SyscallSucceeds());
+ ASSERT_THAT(pid, SyscallSucceeds());
// Set the child's group and exit.
ASSERT_THAT(setpgid(pid, pid), SyscallSucceeds());
@@ -208,7 +208,7 @@ TEST(KillTest, ProcessGroups) {
pause();
}
}
- EXPECT_THAT(child, SyscallSucceeds());
+ ASSERT_THAT(child, SyscallSucceeds());
pid_t other_child = fork();
if (other_child == 0) {
@@ -216,6 +216,7 @@ TEST(KillTest, ProcessGroups) {
pause();
}
}
+ ASSERT_THAT(other_child, SyscallSucceeds());
// Ensure the kill does not succeed without the new group.
EXPECT_THAT(kill(-child, SIGKILL), SyscallFailsWithErrno(ESRCH));
@@ -298,7 +299,7 @@ TEST(KillTest, ChildDropsPrivsCannotKill) {
_exit(0);
}
- EXPECT_THAT(pid, SyscallSucceeds());
+ ASSERT_THAT(pid, SyscallSucceeds());
int status;
EXPECT_THAT(RetryEINTR(waitpid)(pid, &status, 0),
@@ -316,7 +317,7 @@ TEST(KillTest, CanSIGCONTSameSession) {
_exit(0);
}
- EXPECT_THAT(stopped_child, SyscallSucceeds());
+ ASSERT_THAT(stopped_child, SyscallSucceeds());
// Put the child in its own process group. The child and parent process
// groups also share a session.
@@ -359,7 +360,7 @@ TEST(KillTest, CanSIGCONTSameSession) {
_exit(0);
}
- EXPECT_THAT(stopped_child, SyscallSucceeds());
+ ASSERT_THAT(stopped_child, SyscallSucceeds());
// Make sure child exited normally.
EXPECT_THAT(RetryEINTR(waitpid)(stopped_child, &status, 0),
diff --git a/test/syscalls/linux/ptrace.cc b/test/syscalls/linux/ptrace.cc
index d3b3b8b02..f063cc92b 100644
--- a/test/syscalls/linux/ptrace.cc
+++ b/test/syscalls/linux/ptrace.cc
@@ -34,6 +34,11 @@
#include "test/util/test_util.h"
#include "test/util/thread_util.h"
+DEFINE_bool(ptrace_test_execve_child, false,
+ "If true, run the "
+ "PtraceExecveTest_Execve_GetRegs_PeekUser_SIGKILL_TraceClone_"
+ "TraceExit child workload.");
+
namespace gvisor {
namespace testing {
@@ -457,26 +462,18 @@ class PtraceExecveTest : public ::testing::TestWithParam<bool> {
};
TEST_P(PtraceExecveTest, Execve_GetRegs_PeekUser_SIGKILL_TraceClone_TraceExit) {
+ ExecveArray const owned_child_argv = {"/proc/self/exe",
+ "--ptrace_test_execve_child"};
+ char* const* const child_argv = owned_child_argv.get();
+
pid_t const child_pid = fork();
if (child_pid == 0) {
- // In child process.
-
- // Enable tracing, then raise SIGSTOP and expect our parent to suppress it.
- TEST_PCHECK(ptrace(PTRACE_TRACEME, 0, 0, 0) == 0);
- MaybeSave();
- RaiseSignal(SIGSTOP);
- MaybeSave();
-
- // Call execve in a non-leader thread.
- ExecveArray const owned_child_argv = {"/proc/self/exe"};
- char* const* const child_argv = owned_child_argv.get();
- ScopedThread t([&] {
- execve(child_argv[0], child_argv, /* envp = */ nullptr);
- TEST_CHECK_MSG(false, "Survived execve? (thread)");
- });
- t.Join();
- TEST_CHECK_MSG(false, "Survived execve? (main)");
- _exit(1);
+ // In child process. The test relies on calling execve() in a non-leader
+ // thread; pthread_create() isn't async-signal-safe, so the safest way to
+ // do this is to execve() first, then enable tracing and run the expected
+ // child process behavior in the new subprocess.
+ execve(child_argv[0], child_argv, /* envp = */ nullptr);
+ TEST_PCHECK_MSG(false, "Survived execve to test child");
}
// In parent process.
ASSERT_THAT(child_pid, SyscallSucceeds());
@@ -595,6 +592,28 @@ TEST_P(PtraceExecveTest, Execve_GetRegs_PeekUser_SIGKILL_TraceClone_TraceExit) {
<< " status " << status;
}
+[[noreturn]] void RunExecveChild() {
+ // Enable tracing, then raise SIGSTOP and expect our parent to suppress it.
+ TEST_PCHECK(ptrace(PTRACE_TRACEME, 0, 0, 0) == 0);
+ MaybeSave();
+ RaiseSignal(SIGSTOP);
+ MaybeSave();
+
+ // Call execve() in a non-leader thread. As long as execve() succeeds, what
+ // exactly we execve() shouldn't really matter, since the tracer should kill
+ // us after execve() completes.
+ ScopedThread t([&] {
+ ExecveArray const owned_child_argv = {"/proc/self/exe",
+ "--this_flag_shouldnt_exist"};
+ char* const* const child_argv = owned_child_argv.get();
+ execve(child_argv[0], child_argv, /* envp = */ nullptr);
+ TEST_PCHECK_MSG(false, "Survived execve? (thread)");
+ });
+ t.Join();
+ TEST_CHECK_MSG(false, "Survived execve? (main)");
+ _exit(1);
+}
+
INSTANTIATE_TEST_CASE_P(TraceExec, PtraceExecveTest, ::testing::Bool());
// This test has expectations on when syscall-enter/exit-stops occur that are
@@ -946,3 +965,13 @@ TEST(PtraceTest, ERESTART_NoRandomSave) {
} // namespace testing
} // namespace gvisor
+
+int main(int argc, char** argv) {
+ gvisor::testing::TestInit(&argc, &argv);
+
+ if (FLAGS_ptrace_test_execve_child) {
+ gvisor::testing::RunExecveChild();
+ }
+
+ return RUN_ALL_TESTS();
+}
diff --git a/test/syscalls/linux/sync_file_range.cc b/test/syscalls/linux/sync_file_range.cc
index ebe4ca171..d11f58481 100644
--- a/test/syscalls/linux/sync_file_range.cc
+++ b/test/syscalls/linux/sync_file_range.cc
@@ -70,6 +70,7 @@ TEST(SyncFileRangeTest, CannotSyncFileRangeOnUnopenedFd) {
TEST_PCHECK(errno == EBADF);
_exit(0);
}
+ ASSERT_THAT(pid, SyscallSucceeds());
int status = 0;
ASSERT_THAT(waitpid(pid, &status, 0), SyscallSucceedsWithValue(pid));
diff --git a/test/syscalls/linux/timers.cc b/test/syscalls/linux/timers.cc
index dfe231575..14506eb12 100644
--- a/test/syscalls/linux/timers.cc
+++ b/test/syscalls/linux/timers.cc
@@ -92,6 +92,7 @@ TEST(TimerTest, ProcessKilledOnCPUSoftLimit) {
for (;;) {
}
}
+ ASSERT_THAT(pid, SyscallSucceeds());
auto c = Cleanup([pid] {
int status;
EXPECT_THAT(waitpid(pid, &status, 0), SyscallSucceedsWithValue(pid));
@@ -150,6 +151,7 @@ TEST(TimerTest, ProcessPingedRepeatedlyAfterCPUSoftLimit) {
for (;;) {
}
}
+ ASSERT_THAT(pid, SyscallSucceeds());
auto c = Cleanup([pid] {
int status;
EXPECT_THAT(waitpid(pid, &status, 0), SyscallSucceedsWithValue(pid));
@@ -195,6 +197,7 @@ TEST(TimerTest, ProcessKilledOnCPUHardLimit) {
for (;;) {
}
}
+ ASSERT_THAT(pid, SyscallSucceeds());
auto c = Cleanup([pid] {
int status;
EXPECT_THAT(waitpid(pid, &status, 0), SyscallSucceedsWithValue(pid));
diff --git a/test/syscalls/linux/wait.cc b/test/syscalls/linux/wait.cc
index 0a4ec7c6a..2da0bf130 100644
--- a/test/syscalls/linux/wait.cc
+++ b/test/syscalls/linux/wait.cc
@@ -547,6 +547,7 @@ TEST_P(WaitSpecificChildTest, AfterChildExecve) {
const_cast<char**>(child_argv));
_exit(errno);
}
+ ASSERT_THAT(child, SyscallSucceeds());
EXPECT_NO_ERRNO(WaitFor(child, 0));
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-18 23:31:07 +0000