26 	int size = 0;  in get_vma_size()  local
38 				size = addr_end - addr_start;  in get_vma_size()
50 	return size;  in get_vma_size()
65 static int sys_mprotect(void *ptr, size_t size, unsigned long prot)  in sys_mprotect()  argument
70 	sret = syscall(__NR_mprotect, ptr, size, prot);  in sys_mprotect()
74 static int sys_mprotect_pkey(void *ptr, size_t size, unsigned long orig_prot,  in sys_mprotect_pkey()  argument
80 	sret = syscall(__NR_pkey_mprotect, ptr, size, orig_prot, pkey);  in sys_mprotect_pkey()
84 static int sys_munmap(void *ptr, size_t size)  in sys_munmap()  argument
89 	sret = syscall(__NR_munmap, ptr, size);  in sys_munmap()
170 static void setup_single_address(int size, void **ptrOut)  in setup_single_address()  argument
174 	ptr = mmap(NULL, size, PROT_READ, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);  in setup_single_address()
178 static void setup_single_address_rw(int size, void **ptrOut)  in setup_single_address_rw()  argument
183 	ptr = mmap(NULL, size, PROT_READ | PROT_WRITE, mapflags, -1, 0);  in setup_single_address_rw()
187 static int clean_single_address(void *ptr, int size)  in clean_single_address()  argument
190 	ret = munmap(ptr, size);  in clean_single_address()
194 static int seal_single_address(void *ptr, int size)  in seal_single_address()  argument
197 	ret = sys_mseal(ptr, size);  in seal_single_address()
234 	unsigned long size = 4 * page_size;  in test_seal_addseal()  local
236 	setup_single_address(size, &ptr);  in test_seal_addseal()
239 	ret = sys_mseal(ptr, size);  in test_seal_addseal()
250 	unsigned long size = 4 * page_size;  in test_seal_unmapped_start()  local
252 	setup_single_address(size, &ptr);  in test_seal_unmapped_start()
260 	ret = sys_mprotect(ptr, size, PROT_READ | PROT_WRITE);  in test_seal_unmapped_start()
264 	ret = sys_mseal(ptr, size);  in test_seal_unmapped_start()
278 	unsigned long size = 4 * page_size;  in test_seal_unmapped_middle()  local
280 	setup_single_address(size, &ptr);  in test_seal_unmapped_middle()
288 	ret = sys_mprotect(ptr, size, PROT_READ | PROT_WRITE);  in test_seal_unmapped_middle()
292 	ret = sys_mseal(ptr, size);  in test_seal_unmapped_middle()
310 	unsigned long size = 4 * page_size;  in test_seal_unmapped_end()  local
312 	setup_single_address(size, &ptr);  in test_seal_unmapped_end()
320 	ret = sys_mprotect(ptr, size, PROT_READ | PROT_WRITE);  in test_seal_unmapped_end()
324 	ret = sys_mseal(ptr, size);  in test_seal_unmapped_end()
339 	unsigned long size = 4 * page_size;  in test_seal_multiple_vmas()  local
341 	setup_single_address(size, &ptr);  in test_seal_multiple_vmas()
350 	ret = sys_mprotect(ptr, size, PROT_READ);  in test_seal_multiple_vmas()
359 	ret = sys_mseal(ptr, size);  in test_seal_multiple_vmas()
370 	unsigned long size = 4 * page_size;  in test_seal_split_start()  local
372 	setup_single_address(size, &ptr);  in test_seal_split_start()
395 	unsigned long size = 4 * page_size;  in test_seal_split_end()  local
397 	setup_single_address(size, &ptr);  in test_seal_split_end()
419 	unsigned long size = 4 * page_size;  in test_seal_invalid_input()  local
428 	ret = syscall(__NR_mseal, ptr, size, 0x20);  in test_seal_invalid_input()
454 	unsigned long size = 4 * page_size;  in test_seal_zero_length()  local
457 	setup_single_address(size, &ptr);  in test_seal_zero_length()
468 	ret = sys_mprotect(ptr, size, PROT_READ | PROT_WRITE);  in test_seal_zero_length()
478 	unsigned long size = 4 * page_size;  in test_seal_zero_address()  local
483 	ptr = mmap(0, size, PROT_NONE,  in test_seal_zero_address()
487 	size = get_vma_size(ptr, &prot);  in test_seal_zero_address()
488 	FAIL_TEST_IF_FALSE(size == 4 * page_size);  in test_seal_zero_address()
490 	ret = sys_mseal(ptr, size);  in test_seal_zero_address()
494 	ret = sys_mprotect(ptr, size, PROT_READ | PROT_WRITE);  in test_seal_zero_address()
505 	unsigned long size = 4 * page_size;  in test_seal_twice()  local
507 	setup_single_address(size, &ptr);  in test_seal_twice()
510 	ret = sys_mseal(ptr, size);  in test_seal_twice()
514 	ret = sys_mseal(ptr, size);  in test_seal_twice()
524 	unsigned long size = 4 * page_size;  in test_seal_mprotect()  local
527 	setup_single_address(size, &ptr);  in test_seal_mprotect()
531 		ret = seal_single_address(ptr, size);  in test_seal_mprotect()
535 	ret = sys_mprotect(ptr, size, PROT_READ | PROT_WRITE);  in test_seal_mprotect()
548 	unsigned long size = 4 * page_size;  in test_seal_start_mprotect()  local
551 	setup_single_address(size, &ptr);  in test_seal_start_mprotect()
578 	unsigned long size = 4 * page_size;  in test_seal_end_mprotect()  local
581 	setup_single_address(size, &ptr);  in test_seal_end_mprotect()
608 	unsigned long size = 4 * page_size;  in test_seal_mprotect_unalign_len()  local
611 	setup_single_address(size, &ptr);  in test_seal_mprotect_unalign_len()
637 	unsigned long size = 4 * page_size;  in test_seal_mprotect_unalign_len_variant_2()  local
640 	setup_single_address(size, &ptr);  in test_seal_mprotect_unalign_len_variant_2()
665 	unsigned long size = 4 * page_size;  in test_seal_mprotect_two_vma()  local
668 	setup_single_address(size, &ptr);  in test_seal_mprotect_two_vma()
700 	unsigned long size = 4 * page_size;  in test_seal_mprotect_two_vma_with_split()  local
703 	setup_single_address(size, &ptr);  in test_seal_mprotect_two_vma_with_split()
747 	unsigned long size = 4 * page_size;  in test_seal_mprotect_partial_mprotect()  local
750 	setup_single_address(size, &ptr);  in test_seal_mprotect_partial_mprotect()
773 	unsigned long size = 2 * page_size;  in test_seal_mprotect_partial_mprotect_tail()  local
782 	setup_single_address(size, &ptr);  in test_seal_mprotect_partial_mprotect_tail()
790 	ret = sys_mprotect(ptr, size, PROT_EXEC);  in test_seal_mprotect_partial_mprotect_tail()
809 	unsigned long size = 4 * page_size;  in test_seal_mprotect_two_vma_with_gap()  local
812 	setup_single_address(size, &ptr);  in test_seal_mprotect_two_vma_with_gap()
852 	unsigned long size = 4 * page_size;  in test_seal_mprotect_split()  local
855 	setup_single_address(size, &ptr);  in test_seal_mprotect_split()
889 	unsigned long size = 4 * page_size;  in test_seal_mprotect_merge()  local
892 	setup_single_address(size, &ptr);  in test_seal_mprotect_merge()
923 	unsigned long size = 4 * page_size;  in test_seal_munmap()  local
926 	setup_single_address(size, &ptr);  in test_seal_munmap()
930 		ret = sys_mseal(ptr, size);  in test_seal_munmap()
935 	ret = sys_munmap(ptr, size);  in test_seal_munmap()
954 	unsigned long size = 4 * page_size;  in test_seal_munmap_two_vma()  local
957 	setup_single_address(size, &ptr);  in test_seal_munmap_two_vma()
965 		ret = sys_mseal(ptr, size);  in test_seal_munmap_two_vma()
995 	unsigned long size = 4 * page_size;  in test_seal_munmap_vma_with_gap()  local
998 	setup_single_address(size, &ptr);  in test_seal_munmap_vma_with_gap()
1006 		ret = sys_mseal(ptr, size);  in test_seal_munmap_vma_with_gap()
1016 	ret = sys_munmap(ptr, size);  in test_seal_munmap_vma_with_gap()
1026 	unsigned long size = 2 * page_size;  in test_seal_munmap_partial_across_vmas()  local
1030 	setup_single_address(size, &ptr);  in test_seal_munmap_partial_across_vmas()
1038 	ret = sys_munmap(ptr, size);  in test_seal_munmap_partial_across_vmas()
1056 	unsigned long size = 4 * page_size;  in test_munmap_start_freed()  local
1060 	setup_single_address(size, &ptr);  in test_munmap_start_freed()
1074 	ret = sys_munmap(ptr, size);  in test_munmap_start_freed()
1078 		size = get_vma_size(ptr + page_size, &prot);  in test_munmap_start_freed()
1079 		FAIL_TEST_IF_FALSE(size == page_size * 3);  in test_munmap_start_freed()
1085 		size = get_vma_size(ptr + page_size, &prot);  in test_munmap_start_freed()
1086 		FAIL_TEST_IF_FALSE(size == 0);  in test_munmap_start_freed()
1096 	unsigned long size = 4 * page_size;  in test_munmap_end_freed()  local
1099 	setup_single_address(size, &ptr);  in test_munmap_end_freed()
1113 	ret = sys_munmap(ptr, size);  in test_munmap_end_freed()
1126 	unsigned long size = 4 * page_size;  in test_munmap_middle_freed()  local
1130 	setup_single_address(size, &ptr);  in test_munmap_middle_freed()
1144 	ret = sys_munmap(ptr, size);  in test_munmap_middle_freed()
1148 		size = get_vma_size(ptr, &prot);  in test_munmap_middle_freed()
1149 		FAIL_TEST_IF_FALSE(size == page_size);  in test_munmap_middle_freed()
1151 		size = get_vma_size(ptr + page_size * 3, &prot);  in test_munmap_middle_freed()
1152 		FAIL_TEST_IF_FALSE(size == page_size);  in test_munmap_middle_freed()
1156 		size = get_vma_size(ptr, &prot);  in test_munmap_middle_freed()
1157 		FAIL_TEST_IF_FALSE(size == 0);  in test_munmap_middle_freed()
1159 		size = get_vma_size(ptr + page_size * 3, &prot);  in test_munmap_middle_freed()
1160 		FAIL_TEST_IF_FALSE(size == 0);  in test_munmap_middle_freed()
1170 	unsigned long size = 4 * page_size;  in test_seal_mremap_shrink()  local
1174 	setup_single_address(size, &ptr);  in test_seal_mremap_shrink()
1178 		ret = sys_mseal(ptr, size);  in test_seal_mremap_shrink()
1183 	ret2 = sys_mremap(ptr, size, 2 * page_size, 0, 0);  in test_seal_mremap_shrink()
1199 	unsigned long size = 4 * page_size;  in test_seal_mremap_expand()  local
1203 	setup_single_address(size, &ptr);  in test_seal_mremap_expand()
1231 	unsigned long size = page_size;  in test_seal_mremap_move()  local
1235 	setup_single_address(size, &ptr);  in test_seal_mremap_move()
1237 	setup_single_address(size, &newPtr);  in test_seal_mremap_move()
1239 	ret = clean_single_address(newPtr, size);  in test_seal_mremap_move()
1243 		ret = sys_mseal(ptr, size);  in test_seal_mremap_move()
1248 	ret2 = sys_mremap(ptr, size, size, MREMAP_MAYMOVE | MREMAP_FIXED, newPtr);  in test_seal_mremap_move()
1264 	unsigned long size = page_size;  in test_seal_mmap_overwrite_prot()  local
1268 	setup_single_address(size, &ptr);  in test_seal_mmap_overwrite_prot()
1272 		ret = sys_mseal(ptr, size);  in test_seal_mmap_overwrite_prot()
1277 	ret2 = mmap(ptr, size, PROT_NONE,  in test_seal_mmap_overwrite_prot()
1292 	unsigned long size = 12 * page_size;  in test_seal_mmap_expand()  local
1296 	setup_single_address(size, &ptr);  in test_seal_mmap_expand()
1308 	ret2 = mmap(ptr, size, PROT_READ,  in test_seal_mmap_expand()
1323 	unsigned long size = 12 * page_size;  in test_seal_mmap_shrink()  local
1327 	setup_single_address(size, &ptr);  in test_seal_mmap_shrink()
1331 		ret = sys_mseal(ptr, size);  in test_seal_mmap_shrink()
1352 	unsigned long size = 4 * page_size;  in test_seal_mremap_shrink_fixed()  local
1356 	setup_single_address(size, &ptr);  in test_seal_mremap_shrink_fixed()
1358 	setup_single_address(size, &newAddr);  in test_seal_mremap_shrink_fixed()
1362 		ret = sys_mseal(ptr, size);  in test_seal_mremap_shrink_fixed()
1367 	ret2 = sys_mremap(ptr, size, 2 * page_size, MREMAP_MAYMOVE | MREMAP_FIXED,  in test_seal_mremap_shrink_fixed()
1383 	unsigned long size = 4 * page_size;  in test_seal_mremap_expand_fixed()  local
1389 	setup_single_address(size, &newAddr);  in test_seal_mremap_expand_fixed()
1393 		ret = sys_mseal(newAddr, size);  in test_seal_mremap_expand_fixed()
1398 	ret2 = sys_mremap(ptr, page_size, size, MREMAP_MAYMOVE | MREMAP_FIXED,  in test_seal_mremap_expand_fixed()
1414 	unsigned long size = 4 * page_size;  in test_seal_mremap_move_fixed()  local
1418 	setup_single_address(size, &ptr);  in test_seal_mremap_move_fixed()
1420 	setup_single_address(size, &newAddr);  in test_seal_mremap_move_fixed()
1424 		ret = sys_mseal(newAddr, size);  in test_seal_mremap_move_fixed()
1429 	ret2 = sys_mremap(ptr, size, size, MREMAP_MAYMOVE | MREMAP_FIXED, newAddr);  in test_seal_mremap_move_fixed()
1443 	unsigned long size = 4 * page_size;  in test_seal_mremap_move_fixed_zero()  local
1447 	setup_single_address(size, &ptr);  in test_seal_mremap_move_fixed_zero()
1451 		ret = sys_mseal(ptr, size);  in test_seal_mremap_move_fixed_zero()
1458 	ret2 = sys_mremap(ptr, size, 2 * page_size, MREMAP_MAYMOVE | MREMAP_FIXED,  in test_seal_mremap_move_fixed_zero()
1474 	unsigned long size = 4 * page_size;  in test_seal_mremap_move_dontunmap()  local
1478 	setup_single_address(size, &ptr);  in test_seal_mremap_move_dontunmap()
1482 		ret = sys_mseal(ptr, size);  in test_seal_mremap_move_dontunmap()
1487 	ret2 = sys_mremap(ptr, size, size, MREMAP_MAYMOVE | MREMAP_DONTUNMAP, 0);  in test_seal_mremap_move_dontunmap()
1503 	unsigned long size = 4 * page_size;  in test_seal_mremap_move_dontunmap_anyaddr()  local
1507 	setup_single_address(size, &ptr);  in test_seal_mremap_move_dontunmap_anyaddr()
1511 		ret = sys_mseal(ptr, size);  in test_seal_mremap_move_dontunmap_anyaddr()
1519 	setup_single_address(size, &ptr2);  in test_seal_mremap_move_dontunmap_anyaddr()
1521 	ret = sys_munmap(ptr2, size);  in test_seal_mremap_move_dontunmap_anyaddr()
1527 	ret2 = sys_mremap(ptr, size, size, MREMAP_MAYMOVE | MREMAP_DONTUNMAP,  in test_seal_mremap_move_dontunmap_anyaddr()
1544 	unsigned long size;  in test_seal_merge_and_split()  local
1558 	size = get_vma_size(ptr + page_size, &prot);  in test_seal_merge_and_split()
1559 	FAIL_TEST_IF_FALSE(size == 22 * page_size);  in test_seal_merge_and_split()
1566 	size = get_vma_size(ptr + page_size, &prot);  in test_seal_merge_and_split()
1567 	FAIL_TEST_IF_FALSE(size == page_size);  in test_seal_merge_and_split()
1569 	size = get_vma_size(ptr + 2 * page_size, &prot);  in test_seal_merge_and_split()
1570 	FAIL_TEST_IF_FALSE(size == 21 * page_size);  in test_seal_merge_and_split()
1577 	size = get_vma_size(ptr + 22 * page_size, &prot);  in test_seal_merge_and_split()
1578 	FAIL_TEST_IF_FALSE(size == page_size);  in test_seal_merge_and_split()
1580 	size = get_vma_size(ptr + 2 * page_size, &prot);  in test_seal_merge_and_split()
1581 	FAIL_TEST_IF_FALSE(size == 20 * page_size);  in test_seal_merge_and_split()
1588 	size = get_vma_size(ptr +  page_size, &prot);  in test_seal_merge_and_split()
1589 	FAIL_TEST_IF_FALSE(size ==  2 * page_size);  in test_seal_merge_and_split()
1596 	size = get_vma_size(ptr +  21 * page_size, &prot);  in test_seal_merge_and_split()
1597 	FAIL_TEST_IF_FALSE(size ==  2 * page_size);  in test_seal_merge_and_split()
1604 	size = get_vma_size(ptr +  1 * page_size, &prot);  in test_seal_merge_and_split()
1605 	FAIL_TEST_IF_FALSE(size ==  3 * page_size);  in test_seal_merge_and_split()
1617 	size = get_vma_size(ptr +  20 * page_size, &prot);  in test_seal_merge_and_split()
1618 	FAIL_TEST_IF_FALSE(size ==  3 * page_size);  in test_seal_merge_and_split()
1625 	size = get_vma_size(ptr +  page_size, &prot);  in test_seal_merge_and_split()
1626 	FAIL_TEST_IF_FALSE(size ==  22 * page_size);  in test_seal_merge_and_split()
1636 	unsigned long size = 4 * page_size;  in test_seal_discard_ro_anon_on_rw()  local
1639 	setup_single_address_rw(size, &ptr);  in test_seal_discard_ro_anon_on_rw()
1643 		ret = sys_mseal(ptr, size);  in test_seal_discard_ro_anon_on_rw()
1648 	ret = sys_madvise(ptr, size, MADV_DONTNEED);  in test_seal_discard_ro_anon_on_rw()
1652 	ret = sys_munmap(ptr, size);  in test_seal_discard_ro_anon_on_rw()
1665 	unsigned long size = 4 * page_size;  in test_seal_discard_ro_anon_on_pkey()  local
1671 	setup_single_address_rw(size, &ptr);  in test_seal_discard_ro_anon_on_pkey()
1677 	ret = sys_mprotect_pkey((void *)ptr, size, PROT_READ | PROT_WRITE, pkey);  in test_seal_discard_ro_anon_on_pkey()
1681 		ret = sys_mseal(ptr, size);  in test_seal_discard_ro_anon_on_pkey()
1687 	ret = sys_madvise(ptr, size, MADV_DONTNEED);  in test_seal_discard_ro_anon_on_pkey()
1692 	ret = sys_madvise(ptr, size, MADV_DONTNEED);  in test_seal_discard_ro_anon_on_pkey()
1699 	ret = sys_munmap(ptr, size);  in test_seal_discard_ro_anon_on_pkey()
1712 	unsigned long size = 4 * page_size;  in test_seal_discard_ro_anon_on_filebacked()  local
1720 	ret = fallocate(fd, 0, 0, size);  in test_seal_discard_ro_anon_on_filebacked()
1723 	ptr = mmap(NULL, size, PROT_READ, mapflags, fd, 0);  in test_seal_discard_ro_anon_on_filebacked()
1727 		ret = sys_mseal(ptr, size);  in test_seal_discard_ro_anon_on_filebacked()
1732 	ret = sys_madvise(ptr, size, MADV_DONTNEED);  in test_seal_discard_ro_anon_on_filebacked()
1735 	ret = sys_munmap(ptr, size);  in test_seal_discard_ro_anon_on_filebacked()
1749 	unsigned long size = 4 * page_size;  in test_seal_discard_ro_anon_on_shared()  local
1753 	ptr = mmap(NULL, size, PROT_READ, mapflags, -1, 0);  in test_seal_discard_ro_anon_on_shared()
1757 		ret = sys_mseal(ptr, size);  in test_seal_discard_ro_anon_on_shared()
1762 	ret = sys_madvise(ptr, size, MADV_DONTNEED);  in test_seal_discard_ro_anon_on_shared()
1765 	ret = sys_munmap(ptr, size);  in test_seal_discard_ro_anon_on_shared()
1778 	unsigned long size = 4 * page_size;  in test_seal_discard_ro_anon()  local
1781 	setup_single_address(size, &ptr);  in test_seal_discard_ro_anon()
1785 		ret = seal_single_address(ptr, size);  in test_seal_discard_ro_anon()
1789 	ret = sys_madvise(ptr, size, MADV_DONTNEED);  in test_seal_discard_ro_anon()
1795 	ret = sys_munmap(ptr, size);  in test_seal_discard_ro_anon()
1808 	unsigned long size = 2 * page_size;  in test_seal_discard_across_vmas()  local
1811 	setup_single_address(size, &ptr);  in test_seal_discard_across_vmas()
1819 	ret = sys_madvise(ptr, size, MADV_DONTNEED);  in test_seal_discard_across_vmas()
1825 	ret = sys_munmap(ptr, size);  in test_seal_discard_across_vmas()
1839 	unsigned long size = 4 * page_size;  in test_seal_madvise_nodiscard()  local
1842 	setup_single_address(size, &ptr);  in test_seal_madvise_nodiscard()
1846 		ret = seal_single_address(ptr, size);  in test_seal_madvise_nodiscard()
1855 	ret = sys_madvise(ptr, size, MADV_RANDOM);  in test_seal_madvise_nodiscard()
1858 	ret = sys_munmap(ptr, size);  in test_seal_madvise_nodiscard()