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Date: Thu, 29 Jun 2017 17:18:15 -0600
From: Shuah Khan <shuahkh@....samsung.com>
To: shuah@...nel.org, alice.ferrazzi@...il.com,
gregkh@...uxfoundation.org, paul.elder@...t.edu, labath@...gle.com,
panand@...hat.com, will.deacon@....com
Cc: Shuah Khan <shuahkh@....samsung.com>,
linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 2/4] selftests: breakpoints: step_after_suspend_test use ksft_* var arg msg api
Use ksft_* var arg msg to include strerror() info. in test output and
simplify test_result and exit_* using var arg msg api.
Signed-off-by: Shuah Khan <shuahkh@....samsung.com>
---
.../breakpoints/step_after_suspend_test.c | 59 ++++++++++++----------
1 file changed, 33 insertions(+), 26 deletions(-)
diff --git a/tools/testing/selftests/breakpoints/step_after_suspend_test.c b/tools/testing/selftests/breakpoints/step_after_suspend_test.c
index c60c2effb6bc..3fece06e9f64 100644
--- a/tools/testing/selftests/breakpoints/step_after_suspend_test.c
+++ b/tools/testing/selftests/breakpoints/step_after_suspend_test.c
@@ -37,17 +37,19 @@ void child(int cpu)
CPU_ZERO(&set);
CPU_SET(cpu, &set);
if (sched_setaffinity(0, sizeof(set), &set) != 0) {
- perror("sched_setaffinity() failed");
+ ksft_print_msg("sched_setaffinity() failed: %s\n",
+ strerror(errno));
_exit(1);
}
if (ptrace(PTRACE_TRACEME, 0, NULL, NULL) != 0) {
- perror("ptrace(PTRACE_TRACEME) failed");
+ ksft_print_msg("ptrace(PTRACE_TRACEME) failed: %s\n",
+ strerror(errno));
_exit(1);
}
if (raise(SIGSTOP) != 0) {
- perror("raise(SIGSTOP) failed");
+ ksft_print_msg("raise(SIGSTOP) failed: %s\n", strerror(errno));
_exit(1);
}
@@ -61,7 +63,7 @@ bool run_test(int cpu)
pid_t wpid;
if (pid < 0) {
- perror("fork() failed");
+ ksft_print_msg("fork() failed: %s\n", strerror(errno));
return false;
}
if (pid == 0)
@@ -69,57 +71,64 @@ bool run_test(int cpu)
wpid = waitpid(pid, &status, __WALL);
if (wpid != pid) {
- perror("waitpid() failed");
+ ksft_print_msg("waitpid() failed: %s\n", strerror(errno));
return false;
}
if (!WIFSTOPPED(status)) {
- printf("child did not stop\n");
+ ksft_print_msg("child did not stop: %s\n", strerror(errno));
return false;
}
if (WSTOPSIG(status) != SIGSTOP) {
- printf("child did not stop with SIGSTOP\n");
+ ksft_print_msg("child did not stop with SIGSTOP: %s\n",
+ strerror(errno));
return false;
}
if (ptrace(PTRACE_SINGLESTEP, pid, NULL, NULL) < 0) {
if (errno == EIO) {
- ksft_exit_skip("ptrace(PTRACE_SINGLESTEP) "
- "not supported on this architecture");
+ ksft_exit_skip(
+ "ptrace(PTRACE_SINGLESTEP) not supported on this architecture: %s\n",
+ strerror(errno));
}
- perror("ptrace(PTRACE_SINGLESTEP) failed");
+ ksft_print_msg("ptrace(PTRACE_SINGLESTEP) failed: %s\n",
+ strerror(errno));
return false;
}
wpid = waitpid(pid, &status, __WALL);
if (wpid != pid) {
- perror("waitpid() failed");
+ ksft_print_msg("waitpid() failed: $s\n", strerror(errno));
return false;
}
if (WIFEXITED(status)) {
- printf("child did not single-step\n");
+ ksft_print_msg("child did not single-step: %s\n",
+ strerror(errno));
return false;
}
if (!WIFSTOPPED(status)) {
- printf("child did not stop\n");
+ ksft_print_msg("child did not stop: %s\n", strerror(errno));
return false;
}
if (WSTOPSIG(status) != SIGTRAP) {
- printf("child did not stop with SIGTRAP\n");
+ ksft_print_msg("child did not stop with SIGTRAP: %s\n",
+ strerror(errno));
return false;
}
if (ptrace(PTRACE_CONT, pid, NULL, NULL) < 0) {
- perror("ptrace(PTRACE_CONT) failed");
+ ksft_print_msg("ptrace(PTRACE_CONT) failed: %s\n",
+ strerror(errno));
return false;
}
wpid = waitpid(pid, &status, __WALL);
if (wpid != pid) {
- perror("waitpid() failed");
+ ksft_print_msg("waitpid() failed: %s\n", strerror(errno));
return false;
}
if (!WIFEXITED(status)) {
- printf("child did not exit after PTRACE_CONT\n");
+ ksft_print_msg("child did not exit after PTRACE_CONT: %s\n",
+ strerror(errno));
return false;
}
@@ -137,19 +146,19 @@ void suspend(void)
power_state_fd = open("/sys/power/state", O_RDWR);
if (power_state_fd < 0)
ksft_exit_fail_msg(
- "open(\"/sys/power/state\") failed (is this test running as root?)");
+ "open(\"/sys/power/state\") failed (is this test running as root?)\n");
timerfd = timerfd_create(CLOCK_BOOTTIME_ALARM, 0);
if (timerfd < 0)
- ksft_exit_fail_msg("timerfd_create() failed");
+ ksft_exit_fail_msg("timerfd_create() failed\n");
spec.it_value.tv_sec = 5;
err = timerfd_settime(timerfd, 0, &spec, NULL);
if (err < 0)
- ksft_exit_fail_msg("timerfd_settime() failed");
+ ksft_exit_fail_msg("timerfd_settime() failed\n");
if (write(power_state_fd, "mem", strlen("mem")) != strlen("mem"))
- ksft_exit_fail_msg("entering suspend failed");
+ ksft_exit_fail_msg("Failed to enter Suspend state\n");
close(timerfd);
close(power_state_fd);
@@ -163,7 +172,6 @@ int main(int argc, char **argv)
cpu_set_t available_cpus;
int err;
int cpu;
- char buf[10];
ksft_print_header();
@@ -184,7 +192,7 @@ int main(int argc, char **argv)
err = sched_getaffinity(0, sizeof(available_cpus), &available_cpus);
if (err < 0)
- ksft_exit_fail_msg("sched_getaffinity() failed");
+ ksft_exit_fail_msg("sched_getaffinity() failed\n");
for (cpu = 0; cpu < CPU_SETSIZE; cpu++) {
bool test_success;
@@ -193,11 +201,10 @@ int main(int argc, char **argv)
continue;
test_success = run_test(cpu);
- sprintf(buf, "CPU %d", cpu);
if (test_success) {
- ksft_test_result_pass(buf);
+ ksft_test_result_pass("CPU %d\n", cpu);
} else {
- ksft_test_result_fail(buf);
+ ksft_test_result_fail("CPU %d\n", cpu);
succeeded = false;
}
}
--
2.11.0
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