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Commit | Line | Data |
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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
fa6ac760 | 2 | |
0a970718 | 3 | #include <fcntl.h> |
fa6ac760 | 4 | #include <sys/mman.h> |
0a970718 | 5 | #include <unistd.h> |
fa6ac760 | 6 | |
317bb217 ZJS |
7 | #if HAVE_VALGRIND_VALGRIND_H |
8 | # include <valgrind/valgrind.h> | |
9 | #endif | |
10 | ||
3ffd4af2 | 11 | #include "fd-util.h" |
0a970718 | 12 | #include "memory-util.h" |
fa6ac760 | 13 | #include "sigbus.h" |
317bb217 | 14 | #include "tests.h" |
fa6ac760 LP |
15 | |
16 | int main(int argc, char *argv[]) { | |
17 | _cleanup_close_ int fd = -1; | |
18 | char template[] = "/tmp/sigbus-test-XXXXXX"; | |
19 | void *addr = NULL; | |
20 | uint8_t *p; | |
21 | ||
6d7c4033 ZJS |
22 | test_setup_logging(LOG_INFO); |
23 | ||
0df54921 | 24 | #if HAS_FEATURE_ADDRESS_SANITIZER |
317bb217 ZJS |
25 | return log_tests_skipped("address-sanitizer is enabled"); |
26 | #endif | |
349cc4a5 | 27 | #if HAVE_VALGRIND_VALGRIND_H |
317bb217 ZJS |
28 | if (RUNNING_ON_VALGRIND) |
29 | return log_tests_skipped("This test cannot run on valgrind"); | |
af02b15a EV |
30 | #endif |
31 | ||
fa6ac760 LP |
32 | sigbus_install(); |
33 | ||
0c0cdb06 | 34 | assert_se(sigbus_pop(&addr) == 0); |
fa6ac760 LP |
35 | |
36 | assert_se((fd = mkostemp(template, O_RDWR|O_CREAT|O_EXCL)) >= 0); | |
37 | assert_se(unlink(template) >= 0); | |
aab7037d | 38 | assert_se(posix_fallocate(fd, 0, page_size() * 8) >= 0); |
fa6ac760 LP |
39 | |
40 | p = mmap(NULL, page_size() * 16, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0); | |
41 | assert_se(p != MAP_FAILED); | |
42 | ||
43 | assert_se(sigbus_pop(&addr) == 0); | |
44 | ||
45 | p[0] = 0xFF; | |
46 | assert_se(sigbus_pop(&addr) == 0); | |
47 | ||
48 | p[page_size()] = 0xFF; | |
49 | assert_se(sigbus_pop(&addr) == 0); | |
50 | ||
51 | p[page_size()*8] = 0xFF; | |
52 | p[page_size()*8+1] = 0xFF; | |
53 | p[page_size()*10] = 0xFF; | |
54 | assert_se(sigbus_pop(&addr) > 0); | |
55 | assert_se(addr == p + page_size() * 8); | |
56 | assert_se(sigbus_pop(&addr) > 0); | |
57 | assert_se(addr == p + page_size() * 10); | |
58 | assert_se(sigbus_pop(&addr) == 0); | |
59 | ||
60 | sigbus_reset(); | |
61 | } |