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Diffstat (limited to 'tools/testing/selftests/powerpc/harness.c')
-rw-r--r--tools/testing/selftests/powerpc/harness.c105
1 files changed, 105 insertions, 0 deletions
diff --git a/tools/testing/selftests/powerpc/harness.c b/tools/testing/selftests/powerpc/harness.c
new file mode 100644
index 000000000000..e80c42a584fe
--- /dev/null
+++ b/tools/testing/selftests/powerpc/harness.c
@@ -0,0 +1,105 @@
+/*
+ * Copyright 2013, Michael Ellerman, IBM Corp.
+ * Licensed under GPLv2.
+ */
+
+#include <errno.h>
+#include <signal.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+#include "subunit.h"
+#include "utils.h"
+
+#define TIMEOUT 120
+#define KILL_TIMEOUT 5
+
+
+int run_test(int (test_function)(void), char *name)
+{
+ bool terminated;
+ int rc, status;
+ pid_t pid;
+
+ /* Make sure output is flushed before forking */
+ fflush(stdout);
+
+ pid = fork();
+ if (pid == 0) {
+ exit(test_function());
+ } else if (pid == -1) {
+ perror("fork");
+ return 1;
+ }
+
+ /* Wake us up in timeout seconds */
+ alarm(TIMEOUT);
+ terminated = false;
+
+wait:
+ rc = waitpid(pid, &status, 0);
+ if (rc == -1) {
+ if (errno != EINTR) {
+ printf("unknown error from waitpid\n");
+ return 1;
+ }
+
+ if (terminated) {
+ printf("!! force killing %s\n", name);
+ kill(pid, SIGKILL);
+ return 1;
+ } else {
+ printf("!! killing %s\n", name);
+ kill(pid, SIGTERM);
+ terminated = true;
+ alarm(KILL_TIMEOUT);
+ goto wait;
+ }
+ }
+
+ if (WIFEXITED(status))
+ status = WEXITSTATUS(status);
+ else {
+ if (WIFSIGNALED(status))
+ printf("!! child died by signal %d\n", WTERMSIG(status));
+ else
+ printf("!! child died by unknown cause\n");
+
+ status = 1; /* Signal or other */
+ }
+
+ return status;
+}
+
+static void alarm_handler(int signum)
+{
+ /* Jut wake us up from waitpid */
+}
+
+static struct sigaction alarm_action = {
+ .sa_handler = alarm_handler,
+};
+
+int test_harness(int (test_function)(void), char *name)
+{
+ int rc;
+
+ test_start(name);
+ test_set_git_version(GIT_VERSION);
+
+ if (sigaction(SIGALRM, &alarm_action, NULL)) {
+ perror("sigaction");
+ test_error(name);
+ return 1;
+ }
+
+ rc = run_test(test_function, name);
+
+ test_finish(name, rc);
+
+ return rc;
+}