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;
+}