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Date: Tue, 27 Jun 2017 10:04:47 -0600
From: Shuah Khan <shuahkh@....samsung.com>
To: paul.elder@...t.edu, panand@...hat.com, will.deacon@....com,
labath@...gle.com
Cc: Shuah Khan <shuahkh@....samsung.com>,
linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] selftests: breakpoints: convert breakpoint_test_arm64 test to TAP13
Convert breakpoint_test_arm64 output to TAP13 format.
Signed-off-by: Shuah Khan <shuahkh@....samsung.com>
---
.../selftests/breakpoints/breakpoint_test_arm64.c | 114 ++++++++++++++-------
1 file changed, 79 insertions(+), 35 deletions(-)
diff --git a/tools/testing/selftests/breakpoints/breakpoint_test_arm64.c b/tools/testing/selftests/breakpoints/breakpoint_test_arm64.c
index fa6d57af5217..d13bd0dea13e 100644
--- a/tools/testing/selftests/breakpoints/breakpoint_test_arm64.c
+++ b/tools/testing/selftests/breakpoints/breakpoint_test_arm64.c
@@ -41,20 +41,27 @@ static volatile uint8_t var[96] __attribute__((__aligned__(32)));
static void child(int size, int wr)
{
volatile uint8_t *addr = &var[32 + wr];
+ char msg_buf[512];
if (ptrace(PTRACE_TRACEME, 0, NULL, NULL) != 0) {
- perror("ptrace(PTRACE_TRACEME) failed");
- _exit(1);
+ snprintf(msg_buf, sizeof(msg_buf),
+ "ptrace(PTRACE_TRACEME) failed: %s\n",
+ strerror(errno));
+ ksft_exit_fail_msg(msg_buf);
}
if (raise(SIGSTOP) != 0) {
- perror("raise(SIGSTOP) failed");
- _exit(1);
+ snprintf(msg_buf, sizeof(msg_buf),
+ "raise(SIGSTOP) failed: %s\n",
+ strerror(errno));
+ ksft_exit_fail_msg(msg_buf);
}
if ((uintptr_t) addr % size) {
- perror("Wrong address write for the given size\n");
- _exit(1);
+ snprintf(msg_buf, sizeof(msg_buf),
+ "Wrong address write for the given size: %s\n",
+ strerror(errno));
+ ksft_exit_fail_msg(msg_buf);
}
switch (size) {
case 1:
@@ -90,6 +97,7 @@ static bool set_watchpoint(pid_t pid, int size, int wp)
const unsigned int control = byte_mask << 5 | type << 3 | enable;
struct user_hwdebug_state dreg_state;
struct iovec iov;
+ char msg_buf[512];
memset(&dreg_state, 0, sizeof(dreg_state));
dreg_state.dbg_regs[0].addr = (uintptr_t)(addr - offset);
@@ -101,10 +109,15 @@ static bool set_watchpoint(pid_t pid, int size, int wp)
return true;
if (errno == EIO) {
- ksft_exit_skip("ptrace(PTRACE_SETREGSET, NT_ARM_HW_WATCH) "
- "not supported on this hardware\n");
+ snprintf(msg_buf, sizeof(msg_buf),
+ "ptrace(PTRACE_SETREGSET, NT_ARM_HW_WATCH) not supported on this hardware: %s\n",
+ strerror(errno));
+ ksft_exit_skip(msg_buf);
}
- perror("ptrace(PTRACE_SETREGSET, NT_ARM_HW_WATCH) failed");
+ snprintf(msg_buf, sizeof(msg_buf),
+ "ptrace(PTRACE_SETREGSET, NT_ARM_HW_WATCH) failed: %s\n",
+ strerror(errno));
+ ksft_test_result_fail(msg_buf);
return false;
}
@@ -114,9 +127,14 @@ static bool run_test(int wr_size, int wp_size, int wr, int wp)
siginfo_t siginfo;
pid_t pid = fork();
pid_t wpid;
+ char buf[512];
+ char buf2[512];
if (pid < 0) {
- perror("fork() failed");
+ snprintf(buf, sizeof(buf),
+ "fork() failed: %s\n",
+ strerror(errno));
+ ksft_test_result_fail(buf);
return false;
}
if (pid == 0)
@@ -124,15 +142,22 @@ static bool run_test(int wr_size, int wp_size, int wr, int wp)
wpid = waitpid(pid, &status, __WALL);
if (wpid != pid) {
- perror("waitpid() failed");
+ snprintf(buf, sizeof(buf),
+ "waitpid() failed: %s\n",
+ strerror(errno));
+ ksft_test_result_fail(buf);
return false;
}
if (!WIFSTOPPED(status)) {
printf("child did not stop\n");
+ snprintf(buf, sizeof(buf),
+ "child did not stop: %s\n",
+ strerror(errno));
+ ksft_test_result_fail(buf);
return false;
}
if (WSTOPSIG(status) != SIGSTOP) {
- printf("child did not stop with SIGSTOP\n");
+ ksft_test_result_fail("child did not stop with SIGSTOP\n");
return false;
}
@@ -140,42 +165,58 @@ static bool run_test(int wr_size, int wp_size, int wr, int wp)
return false;
if (ptrace(PTRACE_CONT, pid, NULL, NULL) < 0) {
- perror("ptrace(PTRACE_SINGLESTEP) failed");
+ snprintf(buf, sizeof(buf),
+ "ptrace(PTRACE_SINGLESTEP) failed: %s\n",
+ strerror(errno));
+ ksft_test_result_fail(buf);
return false;
}
alarm(3);
wpid = waitpid(pid, &status, __WALL);
if (wpid != pid) {
- perror("waitpid() failed");
+ snprintf(buf2, sizeof(buf2),
+ "waitpid() failed: %s\n",
+ strerror(errno));
+ ksft_test_result_fail(buf2);
return false;
}
alarm(0);
if (WIFEXITED(status)) {
- printf("child did not single-step\t");
+ ksft_test_result_fail("child did not single-step\t");
return false;
}
if (!WIFSTOPPED(status)) {
- printf("child did not stop\n");
+ ksft_test_result_fail("child did not stop\n");
return false;
}
if (WSTOPSIG(status) != SIGTRAP) {
- printf("child did not stop with SIGTRAP\n");
+ ksft_test_result_fail("child did not stop with SIGTRAP\n");
return false;
}
if (ptrace(PTRACE_GETSIGINFO, pid, NULL, &siginfo) != 0) {
perror("ptrace(PTRACE_GETSIGINFO)");
+ snprintf(buf2, sizeof(buf2),
+ "ptrace(PTRACE_GETSIGINFO): %s\n",
+ strerror(errno));
+ ksft_test_result_fail(buf2);
return false;
}
if (siginfo.si_code != TRAP_HWBKPT) {
- printf("Unexpected si_code %d\n", siginfo.si_code);
+ snprintf(buf2, sizeof(buf2),
+ "Unexpected si_code %d\n",
+ siginfo.si_code);
+ ksft_test_result_fail(buf2);
return false;
}
kill(pid, SIGKILL);
wpid = waitpid(pid, &status, 0);
if (wpid != pid) {
- perror("waitpid() failed");
+ snprintf(buf2, sizeof(buf2),
+ "waitpid() failed: %s\n",
+ strerror(errno));
+ ksft_test_result_fail(buf2);
return false;
}
return true;
@@ -192,6 +233,9 @@ int main(int argc, char **argv)
struct sigaction act;
int wr, wp, size;
bool result;
+ char msg_buf[512];
+
+ ksft_print_header();
act.sa_handler = sigalrm;
sigemptyset(&act.sa_mask);
@@ -200,14 +244,15 @@ int main(int argc, char **argv)
for (size = 1; size <= 32; size = size*2) {
for (wr = 0; wr <= 32; wr = wr + size) {
for (wp = wr - size; wp <= wr + size; wp = wp + size) {
- printf("Test size = %d write offset = %d watchpoint offset = %d\t", size, wr, wp);
+ snprintf(msg_buf, sizeof(msg_buf),
+ "Test size = %d write offset = %d watchpoint offset = %d\t",
+ size, wr, wp);
result = run_test(size, MIN(size, 8), wr, wp);
- if ((result && wr == wp) || (!result && wr != wp)) {
- printf("[OK]\n");
- ksft_inc_pass_cnt();
- } else {
- printf("[FAILED]\n");
- ksft_inc_fail_cnt();
+ if ((result && wr == wp) ||
+ (!result && wr != wp))
+ ksft_test_result_pass(msg_buf);
+ else {
+ ksft_test_result_fail(msg_buf);
succeeded = false;
}
}
@@ -215,19 +260,18 @@ int main(int argc, char **argv)
}
for (size = 1; size <= 32; size = size*2) {
- printf("Test size = %d write offset = %d watchpoint offset = -8\t", size, -size);
-
- if (run_test(size, 8, -size, -8)) {
- printf("[OK]\n");
- ksft_inc_pass_cnt();
- } else {
- printf("[FAILED]\n");
- ksft_inc_fail_cnt();
+ snprintf(msg_buf, sizeof(msg_buf),
+ "Test size = %d write offset = %d watchpoint offset = -8\t",
+ size, -size);
+
+ if (run_test(size, 8, -size, -8))
+ ksft_test_result_pass(msg_buf);
+ else {
+ ksft_test_result_fail(msg_buf);
succeeded = false;
}
}
- ksft_print_cnts();
if (succeeded)
ksft_exit_pass();
else
--
2.11.0
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