提交 2fae0d7c 编写于 作者: M Michael Ellerman 提交者: Benjamin Herrenschmidt

selftests: Add support files for powerpc tests

This commit adds support code used by upcoming powerpc tests.
Signed-off-by: NMichael Ellerman <michael@ellerman.id.au>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
上级 0e56dacd
/*
* 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;
}
/*
* Copyright 2013, Michael Ellerman, IBM Corp.
* Licensed under GPLv2.
*/
#ifndef _SELFTESTS_POWERPC_SUBUNIT_H
#define _SELFTESTS_POWERPC_SUBUNIT_H
static inline void test_start(char *name)
{
printf("test: %s\n", name);
}
static inline void test_failure_detail(char *name, char *detail)
{
printf("failure: %s [%s]\n", name, detail);
}
static inline void test_failure(char *name)
{
printf("failure: %s\n", name);
}
static inline void test_error(char *name)
{
printf("error: %s\n", name);
}
static inline void test_success(char *name)
{
printf("success: %s\n", name);
}
static inline void test_finish(char *name, int status)
{
if (status)
test_failure(name);
else
test_success(name);
}
static inline void test_set_git_version(char *value)
{
printf("tags: git_version:%s\n", value);
}
#endif /* _SELFTESTS_POWERPC_SUBUNIT_H */
/*
* Copyright 2013, Michael Ellerman, IBM Corp.
* Licensed under GPLv2.
*/
#ifndef _SELFTESTS_POWERPC_UTILS_H
#define _SELFTESTS_POWERPC_UTILS_H
#include <stdint.h>
#include <stdbool.h>
/* Avoid headaches with PRI?64 - just use %ll? always */
typedef unsigned long long u64;
typedef signed long long s64;
/* Just for familiarity */
typedef uint32_t u32;
typedef uint8_t u8;
int test_harness(int (test_function)(void), char *name);
/* Yes, this is evil */
#define FAIL_IF(x) \
do { \
if ((x)) { \
fprintf(stderr, \
"[FAIL] Test FAILED on line %d\n", __LINE__); \
return 1; \
} \
} while (0)
#endif /* _SELFTESTS_POWERPC_UTILS_H */
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