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authorLinus Torvalds <torvalds@linux-foundation.org>2013-09-06 10:49:42 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-09-06 10:49:42 -0700
commit39eda2aba6be642b71f2e0ad623dcb09fd9d79cf (patch)
treecd0c8f547847641af73e38aab2478f3119dee490 /tools/testing/selftests/powerpc/harness.c
parent2e515bf096c245ba87f20ab4b4ea20f911afaeda (diff)
parent9f24b0c9ef9b6b1292579c9e2cd7ff07ddc372b7 (diff)
downloadop-kernel-dev-39eda2aba6be642b71f2e0ad623dcb09fd9d79cf.zip
op-kernel-dev-39eda2aba6be642b71f2e0ad623dcb09fd9d79cf.tar.gz
Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
Pull powerpc updates from Ben Herrenschmidt: "Here's the powerpc batch for this merge window. Some of the highlights are: - A bunch of endian fixes ! We don't have full LE support yet in that release but this contains a lot of fixes all over arch/powerpc to use the proper accessors, call the firmware with the right endian mode, etc... - A few updates to our "powernv" platform (non-virtualized, the one to run KVM on), among other, support for bridging the P8 LPC bus for UARTs, support and some EEH fixes. - Some mpc51xx clock API cleanups in preparation for a clock API overhaul - A pile of cleanups of our old math emulation code, including better support for using it to emulate optional FP instructions on embedded chips that otherwise have a HW FPU. - Some infrastructure in selftest, for powerpc now, but could be generalized, initially used by some tests for our perf instruction counting code. - A pile of fixes for hotplug on pseries (that was seriously bitrotting) - The usual slew of freescale embedded updates, new boards, 64-bit hiberation support, e6500 core PMU support, etc..." * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (146 commits) powerpc: Correct FSCR bit definitions powerpc/xmon: Fix printing of set of CPUs in xmon powerpc/pseries: Move lparcfg.c to platforms/pseries powerpc/powernv: Return secondary CPUs to firmware on kexec powerpc/btext: Fix CONFIG_PPC_EARLY_DEBUG_BOOTX on ppc32 powerpc: Cleanup handling of the DSCR bit in the FSCR register powerpc/pseries: Child nodes are not detached by dlpar_detach_node powerpc/pseries: Add mising of_node_put in delete_dt_node powerpc/pseries: Make dlpar_configure_connector parent node aware powerpc/pseries: Do all node initialization in dlpar_parse_cc_node powerpc/pseries: Fix parsing of initial node path in update_dt_node powerpc/pseries: Pack update_props_workarea to map correctly to rtas buffer header powerpc/pseries: Fix over writing of rtas return code in update_dt_node powerpc/pseries: Fix creation of loop in device node property list powerpc: Skip emulating & leave interrupts off for kernel program checks powerpc: Add more exception trampolines for hypervisor exceptions powerpc: Fix location and rename exception trampolines powerpc: Add more trap names to xmon powerpc/pseries: Add a warning in the case of cross-cpu VPA registration powerpc: Update the 00-Index in Documentation/powerpc ...
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 0000000..e80c42a
--- /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;
+}
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