bpf/prog_tests/mmap.c

19 	const size_t map_sz = roundup_page(sizeof(struct map_data));
81 	map_mmaped = mmap(NULL, map_sz, PROT_READ | PROT_WRITE, MAP_SHARED,
135 	err = mprotect(map_mmaped, map_sz, PROT_READ);
140 	err = munmap(map_mmaped, map_sz);
146 	map_mmaped = mmap(NULL, map_sz, PROT_READ, MAP_SHARED, data_map_fd, 0);
152 	err = mprotect(map_mmaped, map_sz, PROT_WRITE);
155 	err = mprotect(map_mmaped, map_sz, PROT_EXEC);
165 		p = mmap(NULL, map_sz, flags, MAP_SHARED, data_map_fd, 0);
168 		err = munmap(p, map_sz);
180 	tmp1 = mmap(NULL, map_sz, PROT_READ | PROT_WRITE, MAP_SHARED,
183 		munmap(tmp1, map_sz);
260 	tmp1 = mmap(NULL, map_sz, PROT_READ, MAP_SHARED, data_map_fd, 0);
268 	CHECK_FAIL(munmap(map_mmaped, map_sz));
274 		munmap(tmp1, map_sz);
280 	munmap(tmp1, map_sz);
302 		CHECK_FAIL(munmap(map_mmaped, map_sz));