projects / thirdparty / e2fsprogs.git / blame
| Commit | Line | Data |
|---|---|---|
| 930d7a7f TT |
1 | /* |
| 2 | * This testing program checks the offset of the ext2_filsys structure | |
| 3 | * | |
| 4 | * Copyright (C) 2007 by Theodore Ts'o. | |
| 5 | * | |
| 6 | * %Begin-Header% | |
| 7 | * This file may be redistributed under the terms of the GNU Library | |
| 8 | * General Public License, version 2. | |
| 9 | * %End-Header% | |
| 10 | */ | |
| 11 | ||
| 12 | #include <stdio.h> | |
| 13 | #include <unistd.h> | |
| 14 | #include <stdlib.h> | |
| 15 | ||
| 16 | #include "ext2fs.h" | |
| 17 | ||
| 18 | struct struct_ext2_filsys fs; | |
| 19 | ||
| 20 | #ifndef offsetof | |
| 21 | #define offsetof(type, member) __builtin_offsetof (type, member) | |
| 22 | #endif | |
| 23 | #define check_field(x) cur_offset = do_field(#x, sizeof(fs.x), \ | |
| 24 | offsetof(struct struct_ext2_filsys, x), \ | |
| 25 | cur_offset) | |
| 26 | ||
| 27 | static int do_field(const char *field, size_t size, int offset, int cur_offset) | |
| 28 | { | |
| 29 | if (offset != cur_offset) { | |
| 30 | printf("\t(padding %d bytes?)\n", offset - cur_offset); | |
| 31 | } | |
| 32 | printf("%8d %-30s %3u\n", offset, field, (unsigned) size); | |
| 33 | return offset + size; | |
| 34 | } | |
| 35 | ||
| 36 | int main(int argc, char **argv) | |
| 37 | { | |
| 38 | #if (__GNUC__ >= 4) | |
| 39 | int cur_offset = 0; | |
| 40 | ||
| 41 | printf("%8s %-30s %3s\n", "offset", "field", "size"); | |
| 42 | check_field(magic); | |
| 43 | check_field(io); | |
| 44 | check_field(flags); | |
| 45 | check_field(device_name); | |
| 46 | check_field(super); | |
| 47 | check_field(blocksize); | |
| 48 | check_field(fragsize); | |
| 49 | check_field(group_desc_count); | |
| 50 | check_field(desc_blocks); | |
| 51 | check_field(group_desc); | |
| 52 | check_field(inode_blocks_per_group); | |
| 53 | check_field(inode_map); | |
| 54 | check_field(block_map); | |
| 55 | check_field(get_blocks); | |
| 56 | check_field(check_directory); | |
| 57 | check_field(write_bitmaps); | |
| 58 | check_field(read_inode); | |
| 59 | check_field(write_inode); | |
| 60 | check_field(badblocks); | |
| 61 | check_field(dblist); | |
| 62 | check_field(stride); | |
| 63 | check_field(orig_super); | |
| 64 | check_field(image_header); | |
| 65 | check_field(umask); | |
| 66 | check_field(now); | |
| 67 | check_field(cluster_ratio_bits); | |
| 68 | check_field(reserved); | |
| 69 | check_field(priv_data); | |
| 70 | check_field(icache); | |
| 71 | check_field(image_io); | |
| 72 | check_field(get_alloc_block); | |
| 73 | check_field(block_alloc_stats); | |
| 74 | check_field(mmp_buf); | |
| 75 | check_field(mmp_cmp); | |
| 76 | check_field(mmp_fd); | |
| 77 | check_field(mmp_last_written); | |
| 78 | printf("Ending offset is %d\n\n", cur_offset); | |
| 79 | #endif | |
| 80 | exit(0); | |
| 81 | } |