libext2fs: force DIO alignment FreeBSD when operating on a block device

[tools/e2fsprogs.git] / lib / ext2fs / tst_super_size.c

diff --git a/lib/ext2fs/tst_super_size.c b/lib/ext2fs/tst_super_size.c
index 476b1a6..0adac41 100644 (file)
--- a/lib/ext2fs/tst_super_size.c
+++ b/lib/ext2fs/tst_super_size.c
@@ -2,27 +2,149 @@
  * This testing program makes sure superblock size is 1024 bytes long
  *
  * Copyright (C) 2007 by Theodore Ts'o.
- * 
+ *
  * %Begin-Header%
- * This file may be redistributed under the terms of the GNU Public
- * License.
+ * This file may be redistributed under the terms of the GNU Library
+ * General Public License, version 2.
  * %End-Header%
  */
 
+#include "config.h"
 #include <stdio.h>
 #include <unistd.h>
 #include <stdlib.h>
 
 #include "ext2_fs.h"
 
-int main(int argc, char **argv)
-{
-       int s = sizeof(struct ext2_super_block);
+#define sb_struct ext2_super_block
+#define sb_struct_name "ext2_super_block"
+
+struct sb_struct sb;
 
-       printf("Size of struct ext2_super_block is %d\n", s);
-       if (s != 1024) {
+#ifndef offsetof
+#define offsetof(type, member)  __builtin_offsetof (type, member)
+#endif
+
+#define check_field(x, s) cur_offset = do_field(#x, s, sizeof(sb.x),          \
+                                               offsetof(struct sb_struct, x), \
+                                               cur_offset)
+
+static int do_field(const char *field, unsigned size, unsigned cur_size,
+                   unsigned offset, unsigned cur_offset)
+{
+       if (size != cur_size) {
+               printf("error: %s size %u should be %u\n",
+                      field, cur_size, size);
                exit(1);
        }
-       exit(0);
+       if (offset != cur_offset) {
+               printf("error: %s offset %u should be %u\n",
+                      field, cur_offset, offset);
+               exit(1);
+       }
+       printf("%8d %-30s %3u\n", offset, field, size);
+       return offset + size;
+}
+
+int main(int argc, char **argv)
+{
+#if (__GNUC__ >= 4)
+       int cur_offset = 0;
+
+       printf("%8s %-30s %3s\n", "offset", "field", "size");
+       check_field(s_inodes_count, 4);
+       check_field(s_blocks_count, 4);
+       check_field(s_r_blocks_count, 4);
+       check_field(s_free_blocks_count, 4);
+       check_field(s_free_inodes_count, 4);
+       check_field(s_first_data_block, 4);
+       check_field(s_log_block_size, 4);
+       check_field(s_log_cluster_size, 4);
+       check_field(s_blocks_per_group, 4);
+       check_field(s_clusters_per_group, 4);
+       check_field(s_inodes_per_group, 4);
+       check_field(s_mtime, 4);
+       check_field(s_wtime, 4);
+       check_field(s_mnt_count, 2);
+       check_field(s_max_mnt_count, 2);
+       check_field(s_magic, 2);
+       check_field(s_state, 2);
+       check_field(s_errors, 2);
+       check_field(s_minor_rev_level, 2);
+       check_field(s_lastcheck, 4);
+       check_field(s_checkinterval, 4);
+       check_field(s_creator_os, 4);
+       check_field(s_rev_level, 4);
+       check_field(s_def_resuid, 2);
+       check_field(s_def_resgid, 2);
+       check_field(s_first_ino, 4);
+       check_field(s_inode_size, 2);
+       check_field(s_block_group_nr, 2);
+       check_field(s_feature_compat, 4);
+       check_field(s_feature_incompat, 4);
+       check_field(s_feature_ro_compat, 4);
+       check_field(s_uuid, 16);
+       check_field(s_volume_name, 16);
+       check_field(s_last_mounted, 64);
+       check_field(s_algorithm_usage_bitmap, 4);
+       check_field(s_prealloc_blocks, 1);
+       check_field(s_prealloc_dir_blocks, 1);
+       check_field(s_reserved_gdt_blocks, 2);
+       check_field(s_journal_uuid, 16);
+       check_field(s_journal_inum, 4);
+       check_field(s_journal_dev, 4);
+       check_field(s_last_orphan, 4);
+       check_field(s_hash_seed, 4 * 4);
+       check_field(s_def_hash_version, 1);
+       check_field(s_jnl_backup_type, 1);
+       check_field(s_desc_size, 2);
+       check_field(s_default_mount_opts, 4);
+       check_field(s_first_meta_bg, 4);
+       check_field(s_mkfs_time, 4);
+       check_field(s_jnl_blocks, 17 * 4);
+       check_field(s_blocks_count_hi, 4);
+       check_field(s_r_blocks_count_hi, 4);
+       check_field(s_free_blocks_hi, 4);
+       check_field(s_min_extra_isize, 2);
+       check_field(s_want_extra_isize, 2);
+       check_field(s_flags, 4);
+       check_field(s_raid_stride, 2);
+       check_field(s_mmp_update_interval, 2);
+       check_field(s_mmp_block, 8);
+       check_field(s_raid_stripe_width, 4);
+       check_field(s_log_groups_per_flex, 1);
+       check_field(s_checksum_type, 1);
+       check_field(s_encryption_level, 1);
+       check_field(s_reserved_pad, 1);
+       check_field(s_kbytes_written, 8);
+       check_field(s_snapshot_inum, 4);
+       check_field(s_snapshot_id, 4);
+       check_field(s_snapshot_r_blocks_count, 8);
+       check_field(s_snapshot_list, 4);
+       check_field(s_error_count, 4);
+       check_field(s_first_error_time, 4);
+       check_field(s_first_error_ino, 4);
+       check_field(s_first_error_block, 8);
+       check_field(s_first_error_func, 32);
+       check_field(s_first_error_line, 4);
+       check_field(s_last_error_time, 4);
+       check_field(s_last_error_ino, 4);
+       check_field(s_last_error_line, 4);
+       check_field(s_last_error_block, 8);
+       check_field(s_last_error_func, 32);
+       check_field(s_mount_opts, 64);
+       check_field(s_usr_quota_inum, 4);
+       check_field(s_grp_quota_inum, 4);
+       check_field(s_overhead_blocks, 4);
+       check_field(s_backup_bgs, 8);
+       check_field(s_encrypt_algos, 4);
+       check_field(s_encrypt_pw_salt, 16);
+       check_field(s_lpf_ino, 4);
+       check_field(s_prj_quota_inum, 4);
+       check_field(s_checksum_seed, 4);
+       check_field(s_reserved, 98 * 4);
+       check_field(s_checksum, 4);
+       do_field("Superblock end", 0, 0, cur_offset, 1024);
+#endif
+       return 0;
 }
-