54 lines
1.0 KiB
C
54 lines
1.0 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
#include <limits.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <linux/compiler.h>
|
|
|
|
#include "debug.h"
|
|
#include "tests.h"
|
|
|
|
#ifdef HAVE_JITDUMP
|
|
#include <libelf.h>
|
|
#include "../util/genelf.h"
|
|
#endif
|
|
|
|
#define TEMPL "/tmp/perf-test-XXXXXX"
|
|
|
|
static int test__jit_write_elf(struct test_suite *test __maybe_unused,
|
|
int subtest __maybe_unused)
|
|
{
|
|
#ifdef HAVE_JITDUMP
|
|
static unsigned char x86_code[] = {
|
|
0xBB, 0x2A, 0x00, 0x00, 0x00, /* movl $42, %ebx */
|
|
0xB8, 0x01, 0x00, 0x00, 0x00, /* movl $1, %eax */
|
|
0xCD, 0x80 /* int $0x80 */
|
|
};
|
|
char path[PATH_MAX];
|
|
int fd, ret;
|
|
|
|
strcpy(path, TEMPL);
|
|
|
|
fd = mkstemp(path);
|
|
if (fd < 0) {
|
|
perror("mkstemp failed");
|
|
return TEST_FAIL;
|
|
}
|
|
|
|
pr_info("Writing jit code to: %s\n", path);
|
|
|
|
ret = jit_write_elf(fd, 0, "main", x86_code, sizeof(x86_code),
|
|
NULL, 0, NULL, 0, 0);
|
|
close(fd);
|
|
|
|
unlink(path);
|
|
|
|
return ret ? TEST_FAIL : 0;
|
|
#else
|
|
return TEST_SKIP;
|
|
#endif
|
|
}
|
|
|
|
DEFINE_SUITE("Test jit_write_elf", jit_write_elf);
|