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An attempt at looking at the sizes of xfs structures with exclusions
for ones that we know are different.
The aim is to help pick up on extensions to structures and addition
of structures which for instance may vary on 32 bit and 64 bit word size
versions.
Merge of master-melb:xfs-cmds:26056a by kenmcd.

  An attempt at looking at the sizes of xfs structures with exclusions
  for ones that we know are different.
  The aim is to help pick up on extensions to structures and addition
  of structures which for instance may vary on 32 bit and 64 bit word size
  versions.

#! /bin/sh
# FS QA Test No. 122
#
# pv#952498
# Keep an eye on some of the xfs type sizes
# Motivation from differing ondisk types for 32 and 64 bit word versions.
#
#-----------------------------------------------------------------------
# Copyright (c) 2006 Silicon Graphics, Inc.  All Rights Reserved.
#-----------------------------------------------------------------------
#
# creator
owner=tes@sgi.com

seq=`basename $0`
echo "QA output created by $seq"

here=`pwd`
tmp=/tmp/$$
status=1	# failure is the default!
trap "rm -f $tmp.*; exit \$status" 0 1 2 3 15

# get standard environment
. ./common.rc

# real QA test starts here
_supported_fs xfs
_supported_os Linux

cprog=$tmp.get_structs.c
oprog=$tmp.get_structs

cat >$cprog <<EOF
#include <stdio.h>
#include <xfs/libxlog.h>
EOF

cat >$tmp.ignore <<EOF
xfs_buf_cancel_t
xfs_swapext_t
xfs_dirops_t
xfs_efi_log_item_t
xfs_efd_log_item_t
xfs_iocore_t
xfs_ihash_t
xfs_chashlist_t
xfs_chash_t
xfs_iptr_t
xfs_dmops_t
xfs_qmops_t
xfs_ioops_t
xfs_mod_sb_t
xfs_dqtrx_t
xfs_dqtrxops_t
xfs_ail_entry_t
xfs_item_ops_t
xfs_log_busy_slot_t
xfs_log_busy_chunk_t
xfs_inode_log_format_t
xfs_efi_log_format_t
xfs_efd_log_format_t
xfs_perag_busy_t
xfs_perag_t
xfs_alloc_arg_t
xfs_attr_list_context_t
xfs_attr_sf_sort_t
xfs_bmbt_irec_t
xfs_bmap_free_item_t
xfs_bmap_free_t
xfs_bmalloca_t
xfs_btree_cur_t
xfs_buf_log_item_t
xfs_da_args_t
xfs_dabuf_t
xfs_da_state_blk_t
xfs_da_state_path_t
xfs_da_state_t
xfs_dinode_t
xfs_dir2_block_t
xfs_dir2_data_entry_t
xfs_dir2_data_union_t
xfs_dir2_data_t
xfs_dir2_put_args_t
xfs_dir_put_args_t
xfs_dir_sf_sort_t
xfs_extent_t
xfs_flock64_t
xfs_fsop_geom_v1_t
xfs_growfs_data_t
xfs_growfs_rt_t
xfs_bstime_t
xfs_bstat_t
xfs_fsop_bulkreq_t
xfs_inogrp_t
xfs_fsop_handlereq_t
xfs_fsop_setdm_handlereq_t
xfs_fsop_attrlist_handlereq_t
xfs_attr_multiop_t
xfs_fsop_attrmulti_handlereq_t
xfs_imap_t
xfs_ifork_t
xfs_inode_t
xfs_inode_log_item_t
xfs_log_iovec_t
xfs_log_callback_t
xfs_mount_t
xfs_sb_t
xfs_log_item_t
xfs_log_item_desc_t
xfs_log_item_chunk_t
xfs_trans_t
xfs_dirent_t
xfs_fsop_getparents_handlereq_t
EOF

echo 'int main(int argc, char *argv[]) {' >>$cprog

#
# Printfs of typedef sizes
#
cat /usr/include/xfs/xfs*.h | indent |\
sed -e 's/__attribute__ *[(][(]packed[)][)]//' |\
tee shit |\
egrep '} *xfs_.*_t' |\
egrep -v -f $tmp.ignore |\
awk '{sub(/[;,]/,"",$2); print "printf(\"sizeof(", $2, ") = %d\\n\", sizeof(", $2, "));"}' \
>>$cprog

#
# Look at offsets of key ones which differ in lengths
#

# xfs_sb_t
cat /usr/include/xfs/xfs*.h | indent |\
awk '
   /typedef struct xfs_sb/ { structon = 1; next }
   structon && $2 ~ /^sb_/ { sub(/[;,]/,"",$2)
                             print "printf(\"offsetof(xfs_sb_t,", $2, ") = %d\\n\", offsetof(xfs_sb_t,", $2, "));"; next} 
   structon && /}/ { structon = 0; next}
'>>$cprog 

echo 'return 0; }' >>$cprog

# create and run program
cc -o $oprog $cprog
eval $oprog

status=0