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// 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"
int test__jit_write_elf(struct test *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
}
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