| 1 | |
| 2 | #include <limits.h>
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| 3 | #include <stdio.h>
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| 4 | #include <stdlib.h>
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| 5 | #include <string.h>
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| 6 | #include <unistd.h>
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| 7 | #include <linux/compiler.h>
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| 8 |
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| 9 | #include "debug.h"
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| 10 | #include "tests.h"
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| 11 |
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| 12 | #ifdef HAVE_JITDUMP
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| 13 | #include <libelf.h>
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| 14 | #include "../util/genelf.h"
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| 15 | #endif
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| 16 |
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| 17 | #define TEMPL "/tmp/perf-test-XXXXXX"
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| 18 |
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| 19 | static int test__jit_write_elf(struct test_suite *test __maybe_unused,
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| 20 | int subtest __maybe_unused)
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| 21 | {
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| 22 | #ifdef HAVE_JITDUMP
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| 23 | static unsigned char x86_code[] = {
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| 24 | 0xBB, 0x2A, 0x00, 0x00, 0x00,
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| 25 | 0xB8, 0x01, 0x00, 0x00, 0x00,
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| 26 | 0xCD, 0x80
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| 27 | };
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| 28 | char path[PATH_MAX];
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| 29 | int fd, ret;
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| 30 |
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| 31 | strcpy(path, TEMPL);
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| 32 |
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| 33 | fd = mkstemp(path);
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| 34 | if (fd < 0) {
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| 35 | perror("mkstemp failed");
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| 36 | return TEST_FAIL;
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| 37 | }
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| 38 |
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| 39 | pr_info("Writing jit code to: %s\n", path);
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| 40 |
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| 41 | ret = jit_write_elf(fd, 0, "main", x86_code, sizeof(x86_code),
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| 42 | NULL, 0, NULL, 0, 0);
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| 43 | close(fd);
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| 44 |
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| 45 | unlink(path);
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| 46 |
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| 47 | return ret ? TEST_FAIL : 0;
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| 48 | #else
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| 49 | return TEST_SKIP;
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| 50 | #endif
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| 51 | }
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| 52 |
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| 53 | DEFINE_SUITE("Test jit_write_elf", jit_write_elf);
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