0a9707187b
Just some source rearranging.
62 lines
1.6 KiB
C
62 lines
1.6 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#include <fcntl.h>
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#include <sys/mman.h>
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#include <unistd.h>
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#if HAVE_VALGRIND_VALGRIND_H
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# include <valgrind/valgrind.h>
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#endif
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#include "fd-util.h"
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#include "memory-util.h"
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#include "sigbus.h"
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#include "tests.h"
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int main(int argc, char *argv[]) {
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_cleanup_close_ int fd = -1;
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char template[] = "/tmp/sigbus-test-XXXXXX";
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void *addr = NULL;
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uint8_t *p;
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test_setup_logging(LOG_INFO);
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#if HAS_FEATURE_ADDRESS_SANITIZER
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return log_tests_skipped("address-sanitizer is enabled");
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#endif
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#if HAVE_VALGRIND_VALGRIND_H
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if (RUNNING_ON_VALGRIND)
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return log_tests_skipped("This test cannot run on valgrind");
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#endif
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sigbus_install();
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assert_se(sigbus_pop(&addr) == 0);
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assert_se((fd = mkostemp(template, O_RDWR|O_CREAT|O_EXCL)) >= 0);
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assert_se(unlink(template) >= 0);
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assert_se(posix_fallocate(fd, 0, page_size() * 8) >= 0);
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p = mmap(NULL, page_size() * 16, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
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assert_se(p != MAP_FAILED);
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assert_se(sigbus_pop(&addr) == 0);
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p[0] = 0xFF;
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assert_se(sigbus_pop(&addr) == 0);
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p[page_size()] = 0xFF;
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assert_se(sigbus_pop(&addr) == 0);
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p[page_size()*8] = 0xFF;
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p[page_size()*8+1] = 0xFF;
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p[page_size()*10] = 0xFF;
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assert_se(sigbus_pop(&addr) > 0);
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assert_se(addr == p + page_size() * 8);
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assert_se(sigbus_pop(&addr) > 0);
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assert_se(addr == p + page_size() * 10);
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assert_se(sigbus_pop(&addr) == 0);
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sigbus_reset();
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}
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