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