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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
| }
|
|
