linux-kselftest-5.0-rc4

This Kselftest update for Linux 5.0-rc4 consists of fixes to rtc, seccomp
 and other tests.
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Merge tag 'linux-kselftest-5.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kselftest fixes from Shuah Khan:
 "Fixes to rtc, seccomp and other tests"

* tag 'linux-kselftest-5.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests/seccomp: Abort without user notification support
  selftests: gpio-mockup-chardev: Check asprintf() for error
  selftests: seccomp: use LDLIBS instead of LDFLAGS
  selftests/vm/gup_benchmark.c: match gup struct to kernel
  tools/testing/selftests/x86/unwind_vdso.c: Remove duplicate header
  x86/mpx/selftests: fix spelling mistake "succeded" -> "succeeded"
  selftests: rtc: rtctest: add alarm test on minute boundary
  selftests: rtc: rtctest: fix alarm tests

tools/testing/selftests/gpio/gpio-mockup-chardev.c

@@ -37,7 +37,7 @@ static int get_debugfs(char **path)
 	struct libmnt_table *tb;
 	struct libmnt_iter *itr = NULL;
 	struct libmnt_fs *fs;
-	int found = 0;
+	int found = 0, ret;
 
 	cxt = mnt_new_context();
 	if (!cxt)
@@ -58,8 +58,11 @@ static int get_debugfs(char **path)
 			break;
 		}
 	}
-	if (found)
+	if (found) {
-		asprintf(path, "%s/gpio", mnt_fs_get_target(fs));
+		ret = asprintf(path, "%s/gpio", mnt_fs_get_target(fs));
+		if (ret < 0)
+			err(EXIT_FAILURE, "failed to format string");
+	}
 
 	mnt_free_iter(itr);
 	mnt_free_context(cxt);

tools/testing/selftests/rtc/rtctest.c

@@ -145,15 +145,12 @@ TEST_F(rtc, alarm_alm_set) {
 
 	rc = select(self->fd + 1, &readfds, NULL, NULL, &tv);
 	ASSERT_NE(-1, rc);
-	EXPECT_NE(0, rc);
+	ASSERT_NE(0, rc);
 
 	/* Disable alarm interrupts */
 	rc = ioctl(self->fd, RTC_AIE_OFF, 0);
 	ASSERT_NE(-1, rc);
 
-	if (rc == 0)
-		return;
-
 	rc = read(self->fd, &data, sizeof(unsigned long));
 	ASSERT_NE(-1, rc);
 	TH_LOG("data: %lx", data);
@@ -202,7 +199,109 @@ TEST_F(rtc, alarm_wkalm_set) {
 
 	rc = select(self->fd + 1, &readfds, NULL, NULL, &tv);
 	ASSERT_NE(-1, rc);
-	EXPECT_NE(0, rc);
+	ASSERT_NE(0, rc);
+
+	rc = read(self->fd, &data, sizeof(unsigned long));
+	ASSERT_NE(-1, rc);
+
+	rc = ioctl(self->fd, RTC_RD_TIME, &tm);
+	ASSERT_NE(-1, rc);
+
+	new = timegm((struct tm *)&tm);
+	ASSERT_EQ(new, secs);
+}
+
+TEST_F(rtc, alarm_alm_set_minute) {
+	struct timeval tv = { .tv_sec = 62 };
+	unsigned long data;
+	struct rtc_time tm;
+	fd_set readfds;
+	time_t secs, new;
+	int rc;
+
+	rc = ioctl(self->fd, RTC_RD_TIME, &tm);
+	ASSERT_NE(-1, rc);
+
+	secs = timegm((struct tm *)&tm) + 60 - tm.tm_sec;
+	gmtime_r(&secs, (struct tm *)&tm);
+
+	rc = ioctl(self->fd, RTC_ALM_SET, &tm);
+	if (rc == -1) {
+		ASSERT_EQ(EINVAL, errno);
+		TH_LOG("skip alarms are not supported.");
+		return;
+	}
+
+	rc = ioctl(self->fd, RTC_ALM_READ, &tm);
+	ASSERT_NE(-1, rc);
+
+	TH_LOG("Alarm time now set to %02d:%02d:%02d.",
+	       tm.tm_hour, tm.tm_min, tm.tm_sec);
+
+	/* Enable alarm interrupts */
+	rc = ioctl(self->fd, RTC_AIE_ON, 0);
+	ASSERT_NE(-1, rc);
+
+	FD_ZERO(&readfds);
+	FD_SET(self->fd, &readfds);
+
+	rc = select(self->fd + 1, &readfds, NULL, NULL, &tv);
+	ASSERT_NE(-1, rc);
+	ASSERT_NE(0, rc);
+
+	/* Disable alarm interrupts */
+	rc = ioctl(self->fd, RTC_AIE_OFF, 0);
+	ASSERT_NE(-1, rc);
+
+	rc = read(self->fd, &data, sizeof(unsigned long));
+	ASSERT_NE(-1, rc);
+	TH_LOG("data: %lx", data);
+
+	rc = ioctl(self->fd, RTC_RD_TIME, &tm);
+	ASSERT_NE(-1, rc);
+
+	new = timegm((struct tm *)&tm);
+	ASSERT_EQ(new, secs);
+}
+
+TEST_F(rtc, alarm_wkalm_set_minute) {
+	struct timeval tv = { .tv_sec = 62 };
+	struct rtc_wkalrm alarm = { 0 };
+	struct rtc_time tm;
+	unsigned long data;
+	fd_set readfds;
+	time_t secs, new;
+	int rc;
+
+	rc = ioctl(self->fd, RTC_RD_TIME, &alarm.time);
+	ASSERT_NE(-1, rc);
+
+	secs = timegm((struct tm *)&alarm.time) + 60 - alarm.time.tm_sec;
+	gmtime_r(&secs, (struct tm *)&alarm.time);
+
+	alarm.enabled = 1;
+
+	rc = ioctl(self->fd, RTC_WKALM_SET, &alarm);
+	if (rc == -1) {
+		ASSERT_EQ(EINVAL, errno);
+		TH_LOG("skip alarms are not supported.");
+		return;
+	}
+
+	rc = ioctl(self->fd, RTC_WKALM_RD, &alarm);
+	ASSERT_NE(-1, rc);
+
+	TH_LOG("Alarm time now set to %02d/%02d/%02d %02d:%02d:%02d.",
+	       alarm.time.tm_mday, alarm.time.tm_mon + 1,
+	       alarm.time.tm_year + 1900, alarm.time.tm_hour,
+	       alarm.time.tm_min, alarm.time.tm_sec);
+
+	FD_ZERO(&readfds);
+	FD_SET(self->fd, &readfds);
+
+	rc = select(self->fd + 1, &readfds, NULL, NULL, &tv);
+	ASSERT_NE(-1, rc);
+	ASSERT_NE(0, rc);
 
 	rc = read(self->fd, &data, sizeof(unsigned long));
 	ASSERT_NE(-1, rc);

tools/testing/selftests/seccomp/Makefile

@@ -9,7 +9,7 @@ BINARIES := seccomp_bpf seccomp_benchmark
 CFLAGS += -Wl,-no-as-needed -Wall
 
 seccomp_bpf: seccomp_bpf.c ../kselftest_harness.h
-	$(CC) $(CFLAGS) $(LDFLAGS) -lpthread $< -o $@
+	$(CC) $(CFLAGS) $(LDFLAGS) $< -lpthread -o $@
 
 TEST_PROGS += $(BINARIES)
 EXTRA_CLEAN := $(BINARIES)

tools/testing/selftests/seccomp/seccomp_bpf.c

@@ -3044,7 +3044,7 @@ TEST(user_notification_basic)
 	/* Check that the basic notification machinery works */
 	listener = user_trap_syscall(__NR_getpid,
 				     SECCOMP_FILTER_FLAG_NEW_LISTENER);
-	EXPECT_GE(listener, 0);
+	ASSERT_GE(listener, 0);
 
 	/* Installing a second listener in the chain should EBUSY */
 	EXPECT_EQ(user_trap_syscall(__NR_getpid,
@@ -3103,7 +3103,7 @@ TEST(user_notification_kill_in_middle)
 
 	listener = user_trap_syscall(__NR_getpid,
 				     SECCOMP_FILTER_FLAG_NEW_LISTENER);
-	EXPECT_GE(listener, 0);
+	ASSERT_GE(listener, 0);
 
 	/*
 	 * Check that nothing bad happens when we kill the task in the middle
@@ -3152,7 +3152,7 @@ TEST(user_notification_signal)
 
 	listener = user_trap_syscall(__NR_gettid,
 				     SECCOMP_FILTER_FLAG_NEW_LISTENER);
-	EXPECT_GE(listener, 0);
+	ASSERT_GE(listener, 0);
 
 	pid = fork();
 	ASSERT_GE(pid, 0);
@@ -3215,7 +3215,7 @@ TEST(user_notification_closed_listener)
 
 	listener = user_trap_syscall(__NR_getpid,
 				     SECCOMP_FILTER_FLAG_NEW_LISTENER);
-	EXPECT_GE(listener, 0);
+	ASSERT_GE(listener, 0);
 
 	/*
 	 * Check that we get an ENOSYS when the listener is closed.
@@ -3376,7 +3376,7 @@ TEST(seccomp_get_notif_sizes)
 {
 	struct seccomp_notif_sizes sizes;
 
-	EXPECT_EQ(seccomp(SECCOMP_GET_NOTIF_SIZES, 0, &sizes), 0);
+	ASSERT_EQ(seccomp(SECCOMP_GET_NOTIF_SIZES, 0, &sizes), 0);
 	EXPECT_EQ(sizes.seccomp_notif, sizeof(struct seccomp_notif));
 	EXPECT_EQ(sizes.seccomp_notif_resp, sizeof(struct seccomp_notif_resp));
 }

tools/testing/selftests/vm/gup_benchmark.c

@@ -25,6 +25,7 @@ struct gup_benchmark {
 	__u64 size;
 	__u32 nr_pages_per_call;
 	__u32 flags;
+	__u64 expansion[10];	/* For future use */
 };
 
 int main(int argc, char **argv)

tools/testing/selftests/x86/mpx-mini-test.c

@@ -1503,7 +1503,7 @@ exit:
 		exit(20);
 	}
 	if (successes != total_nr_tests) {
-		eprintf("ERROR: succeded fewer than number of tries (%d != %d)\n",
+		eprintf("ERROR: succeeded fewer than number of tries (%d != %d)\n",
 				successes, total_nr_tests);
 		exit(21);
 	}

tools/testing/selftests/x86/unwind_vdso.c

@@ -44,7 +44,6 @@ int main()
 #include <stdbool.h>
 #include <sys/ptrace.h>
 #include <sys/user.h>
-#include <sys/ucontext.h>
 #include <link.h>
 #include <sys/auxv.h>
 #include <dlfcn.h>