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