#! /bin/bash
# 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.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it would be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write the Free Software Foundation,
# Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
#
#-----------------------------------------------------------------------
#

seq=`basename $0`
seqres=$RESULT_DIR/$seq
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
_require_command "$INDENT_PROG" indent

rm -f $seqres.full

# filter out known changes to xfs type sizes
_type_size_filter()
{
	# lazy SB adds __be32 agf_btreeblks - pv960372
	if [ "$($MKFS_XFS_PROG 2>&1 | grep -c lazy-count )" == "0" ]; then
		perl -ne '
s/sizeof\( xfs_agf_t \) = 60/sizeof( xfs_agf_t ) = <SIZE>/;
		print;'
	else
		perl -ne '
s/sizeof\( xfs_agf_t \) = 64/sizeof( xfs_agf_t ) = <SIZE>/;
		print;'
	fi
}

# filter out known changes to xfs type names
_type_name_filter()
{
	sed -e 's/xfs_bmbt_rec_64_t/xfs_bmbt_rec_t/'
}

_attribute_filter()
{
	sed -e 's/__attribute__ *[(][(]packed[)][)]//' \
	    -e 's/__arch_pack//'
}

cprog=$tmp.get_structs.c
oprog=$tmp.get_structs
progout=$tmp.output
keyfile=$tmp.keys

cat >$cprog <<EOF
#define _GNU_SOURCE
#include <stdio.h>
EOF
for hdr in /usr/include/xfs/xfs*.h; do
	echo "#include <$(echo "$hdr" | sed -e 's|/usr/include/||g')>" >> $cprog
done

# missing:
# xfs_attr_shortform_t
# xfs_trans_header_t

cat >$tmp.ignore <<EOF
xfs_buf_log_format_t
xfs_attr3_icleaf_hdr
xfs_da3_icnode_hdr
xfs_dir3_icfree_hdr
xfs_dir3_icleaf_hdr
xfs_name
xfs_owner_info
xfs_refcount_irec
xfs_rmap_irec
xfs_alloctype_t
xfs_buf_cancel_t
xfs_bmbt_rec_32_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_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_bmbt_rec_host_t
xfs_bmap_free_item_t
xfs_bmap_free_t
xfs_bmalloca_t
xfs_btree_cur_t
xfs_buf_log_item_t
xfs_buf_log_format_v1_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_dircook_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_ext_irec_t
xfs_extdelta_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_icsb_cnts_t
xfs_icdinode_t
xfs_ictimestamp_t
xfs_inobt_rec_incore_t
xfs_inogrp_t
xfs_fid2_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_metablock_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
xfs_dinode_core_t
EOF

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

#
# Printfs of typedef sizes
#
cat /usr/include/xfs/xfs*.h | indent |\
_attribute_filter |\
egrep '(} *xfs_.*_t|^struct xfs_[a-z0-9_]*$)' > /tmp/barf

cat /usr/include/xfs/xfs*.h | indent |\
_attribute_filter |\
egrep '(} *xfs_.*_t|^struct xfs_[a-z0-9_]*$)' |\
egrep -v -f $tmp.ignore |\
sed -e 's/^.*}[[:space:]]*//g' -e 's/;.*$//g' -e 's/_t, /_t\n/g' |\
sort | uniq |\
awk '{printf("printf(\"sizeof(%s) = \\%zu\\n\", sizeof(%s));\n", $0, $0);}' |\
cat >> $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)
                             printf("printf(\"offsetof(xfs_sb_t, %s) = \\%zu\\n\", offsetof(xfs_sb_t, %s));", $2, $2); next}
   structon && /}/ { structon = 0; next}
'>>$cprog

echo 'return 0; }' >>$cprog

# create and run program
cc -o $oprog $cprog >> $seqres.full 2>&1 || \
  _notrun "Could not compile test program (see end of $seqres.full)"
$oprog | _type_size_filter | _type_name_filter > $progout

# Find all the items that only exist in the golden output
comm -23 <(grep '=' $0.out | sed -e 's/ =.*$//g' | LC_COLLATE=POSIX sort) \
	 <(sed -e 's/ =.*$//g' < $progout | LC_COLLATE=POSIX sort) > $keyfile

# Copy those items to the program output
grep -F -f $keyfile $0.out >> $progout

LC_COLLATE=POSIX sort $progout

status=0
