[PATCH 3/4] kselftest: breakpoints: convert breakpoint_test to TAP13 output

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From: Paul Elder <paul.elder@xxxxxxxx>

Make the breakpoints test output in the TAP13 format by using the
TAP13 output functions defined in kselftest.h

Cc: Tim Bird <Tim.Bird@xxxxxxxx>
Signed-off-by: Paul Elder <paul.elder@xxxxxxxx>
Signed-off-by: Alice Ferrazzi <alice.ferrazzi@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 .../selftests/breakpoints/breakpoint_test.c        | 31 +++++++++++-----------
 1 file changed, 16 insertions(+), 15 deletions(-)

diff --git a/tools/testing/selftests/breakpoints/breakpoint_test.c b/tools/testing/selftests/breakpoints/breakpoint_test.c
index 120895ab5505..808328a854e2 100644
--- a/tools/testing/selftests/breakpoints/breakpoint_test.c
+++ b/tools/testing/selftests/breakpoints/breakpoint_test.c
@@ -42,10 +42,8 @@ static void set_breakpoint_addr(void *addr, int n)
 
 	ret = ptrace(PTRACE_POKEUSER, child_pid,
 		     offsetof(struct user, u_debugreg[n]), addr);
-	if (ret) {
-		perror("Can't set breakpoint addr\n");
-		ksft_exit_fail();
-	}
+	if (ret)
+		ksft_exit_fail_tap_msg("Can't set breakpoint addr");
 }
 
 static void toggle_breakpoint(int n, int type, int len,
@@ -105,10 +103,8 @@ static void toggle_breakpoint(int n, int type, int len,
 
 	ret = ptrace(PTRACE_POKEUSER, child_pid,
 		     offsetof(struct user, u_debugreg[7]), dr7);
-	if (ret) {
-		perror("Can't set dr7");
-		ksft_exit_fail();
-	}
+	if (ret)
+		ksft_exit_fail_tap_msg("Can't set dr7");
 }
 
 /* Dummy variables to test read/write accesses */
@@ -264,26 +260,29 @@ static void check_success(const char *msg)
 	const char *msg2;
 	int child_nr_tests;
 	int status;
+	int ret;
 
 	/* Wait for the child to SIGTRAP */
 	wait(&status);
 
 	msg2 = "Failed";
+	ret = 0;
 
 	if (WSTOPSIG(status) == SIGTRAP) {
 		child_nr_tests = ptrace(PTRACE_PEEKDATA, child_pid,
 					&nr_tests, 0);
 		if (child_nr_tests == nr_tests)
-			msg2 = "Ok";
-		if (ptrace(PTRACE_POKEDATA, child_pid, &trapped, 1)) {
-			perror("Can't poke\n");
-			ksft_exit_fail();
-		}
+			ret = 1;
+		if (ptrace(PTRACE_POKEDATA, child_pid, &trapped, 1))
+			ksft_exit_fail_tap_msg("Can't poke");
 	}
 
 	nr_tests++;
 
-	printf("%s [%s]\n", msg, msg2);
+	if (ret)
+		ksft_test_result_pass(msg);
+	else
+		ksft_test_result_fail(msg);
 }
 
 static void launch_instruction_breakpoints(char *buf, int local, int global)
@@ -378,6 +377,8 @@ int main(int argc, char **argv)
 	pid_t pid;
 	int ret;
 
+	ksft_print_tap_header();
+
 	pid = fork();
 	if (!pid) {
 		trigger_tests();
@@ -392,5 +393,5 @@ int main(int argc, char **argv)
 
 	wait(NULL);
 
-	return ksft_exit_pass();
+	return ksft_exit_pass_tap();
 }
-- 
2.13.1

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