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freebsd-dev/lib/libsysdecode/mktables
Bryan Drewery dc89d06976 Rework r339635 to fix .depend.tables.h handling. 
Avoid touching the tables.h file unless it has changed to avoid unneeded
rebuilds.

Also revert r350301's explicit dependencies.

Reviewed by:	emaste
MFC after:	2 weeks
X-MFC-With:	r339635 (kevans request)
PR:		238828
Sponsored by:	DellEMC
Differential Revision:	https://reviews.freebsd.org/D21295
2019-08-16 22:34:10 +00:00

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#!/bin/sh
#
# Copyright (c) 2006 "David Kirchner" <dpk@dpk.net>. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# $FreeBSD$
#
# Generates tables.h
#
# Originally this script was 'mksubr' for kdump which generated a complete
# C file along with function definitions. Now this script generates tables
# of constants and names extracted from header files.
set -e
LC_ALL=C; export LC_ALL
if [ -z "$1" ]
then
echo "usage: sh $0 include-dir [output-file]"
exit 1
fi
include_dir=$1
if [ -n "$2" ]; then
output_file="$2"
output_tmp=$(mktemp -u)
exec > "$output_tmp"
fi
all_headers=
#
# Generate a table C #definitions. The including file can define the
# TABLE_NAME(n), TABLE_ENTRY(x), and TABLE_END macros to define what
# the tables map to.
#
gen_table()
{
local name grep file excl filter
name=$1
grep=$2
file=$3
excl=$4
if [ -z "$excl" ]; then
filter="cat"
else
filter="egrep -v"
fi
cat <<_EOF_
TABLE_START(${name})
_EOF_
if [ -e "${include_dir}/${file}" ]; then
all_headers="${all_headers:+${all_headers} }${file}"
egrep "^#[[:space:]]*define[[:space:]]+"${grep}"[[:space:]]*" \
$include_dir/$file | ${filter} ${excl} | \
awk '{ for (i = 1; i <= NF; i++) \
if ($i ~ /define/) \
break; \
++i; \
printf "TABLE_ENTRY(%s)\n", $i }'
fi
cat <<_EOF_
TABLE_END
_EOF_
}
cat <<_EOF_
/* This file is auto-generated. */
_EOF_
gen_table "accessmode" "[A-Z]_OK[[:space:]]+0?x?[0-9A-Fa-f]+" "sys/unistd.h"
gen_table "acltype" "ACL_TYPE_[A-Z4_]+[[:space:]]+0x[0-9]+" "sys/acl.h"
gen_table "atflags" "AT_[A-Z_]+[[:space:]]+0x[0-9]+" "sys/fcntl.h"
gen_table "capfcntl" "CAP_FCNTL_[A-Z]+[[:space:]]+\(1" "sys/capsicum.h"
gen_table "extattrns" "EXTATTR_NAMESPACE_[A-Z]+[[:space:]]+0x[0-9]+" "sys/extattr.h"
gen_table "fadvisebehav" "POSIX_FADV_[A-Z]+[[:space:]]+[0-9]+" "sys/fcntl.h"
gen_table "openflags" "O_[A-Z]+[[:space:]]+0x[0-9A-Fa-f]+" "sys/fcntl.h" "O_RDONLY|O_RDWR|O_WRONLY"
gen_table "flockops" "LOCK_[A-Z]+[[:space:]]+0x[0-9]+" "sys/fcntl.h"
gen_table "kldsymcmd" "KLDSYM_[A-Z]+[[:space:]]+[0-9]+" "sys/linker.h"
gen_table "kldunloadfflags" "LINKER_UNLOAD_[A-Z]+[[:space:]]+[0-9]+" "sys/linker.h"
gen_table "lio_listiomodes" "LIO_(NO)?WAIT[[:space:]]+[0-9]+" "aio.h"
gen_table "madvisebehav" "_?MADV_[A-Z]+[[:space:]]+[0-9]+" "sys/mman.h"
gen_table "minheritflags" "INHERIT_[A-Z]+[[:space:]]+[0-9]+" "sys/mman.h"
gen_table "mlockallflags" "MCL_[A-Z]+[[:space:]]+0x[0-9]+" "sys/mman.h"
gen_table "mmapprot" "PROT_[A-Z]+[[:space:]]+0x[0-9A-Fa-f]+" "sys/mman.h"
gen_table "ngbtsolevel" "SOL_[A-Z0-9]+[[:space:]]+0x[0-9A-Fa-f]+" "netgraph/bluetooth/include/ng_btsocket.h"
gen_table "fileflags" "[SU]F_[A-Z]+[[:space:]]+0x[0-9A-Fa-f]+" "sys/stat.h" "UF_COMPRESSED|UF_TRACKED|UF_SETTABLE|SF_SETTABLE"
gen_table "filemode" "S_[A-Z]+[[:space:]]+[0-6]{7}" "sys/stat.h"
gen_table "keventflags" "EV_[A-Z]+[[:space:]]+0x[0-9]+" "sys/event.h" "EV_SYSFLAGS|EV_DROP|EV_FLAG[12]"
gen_table "keventfilters" "EVFILT_[A-Z]+[[:space:]]+\(-[0-9]+\)" "sys/event.h"
gen_table "mountflags" "MNT_[A-Z]+[[:space:]]+0x[0-9]+" "sys/mount.h"
gen_table "msyncflags" "MS_[A-Z]+[[:space:]]+0x[0-9]+" "sys/mman.h"
gen_table "nfssvcflags" "NFSSVC_[A-Z0-9]+[[:space:]]+0x[0-9]+" "nfs/nfssvc.h"
gen_table "pathconfname" "_PC_[A-Z4_]+[[:space:]]+[0-9]+" "sys/unistd.h"
gen_table "prio" "PRIO_[A-Z]+[[:space:]]+[0-9]" "sys/resource.h"
gen_table "procctlcmd" "PROC_[A-Z_]+[[:space:]]+[0-9]" "sys/procctl.h" "PROC_TRACE_CTL_"
gen_table "ptraceop" "PT_[[:alnum:]_]+[[:space:]]+[0-9]+" "sys/ptrace.h"
gen_table "quotactlcmds" "Q_[A-Z]+[[:space:]]+0x[0-9]+" "ufs/ufs/quota.h"
gen_table "rebootopt" "RB_[A-Z]+[[:space:]]+0x[0-9]+" "sys/reboot.h"
gen_table "rforkflags" "RF[A-Z]+[[:space:]]+\([0-9]+<<[0-9]+\)" "sys/unistd.h"
gen_table "rlimit" "RLIMIT_[A-Z]+[[:space:]]+[0-9]+" "sys/resource.h"
gen_table "rusage" "RUSAGE_[A-Z]+[[:space:]]+[-0-9]+" "sys/resource.h"
gen_table "schedpolicy" "SCHED_[A-Z]+[[:space:]]+[0-9]+" "sched.h"
gen_table "sendfileflags" "SF_[A-Z]+[[:space:]]+[0-9]+" "sys/socket.h"
gen_table "shmatflags" "SHM_[A-Z]+[[:space:]]+[0-9]{6}" "sys/shm.h"
gen_table "shutdownhow" "SHUT_[A-Z]+[[:space:]]+[0-9]+" "sys/socket.h"
gen_table "sigbuscode" "BUS_[A-Z]+[[:space:]]+[0-9]+" "sys/signal.h"
gen_table "sigchldcode" "CLD_[A-Z]+[[:space:]]+[0-9]+" "sys/signal.h"
gen_table "sigfpecode" "FPE_[A-Z]+[[:space:]]+[0-9]+" "sys/signal.h"
gen_table "sigprocmaskhow" "SIG_[A-Z]+[[:space:]]+[0-9]+" "sys/signal.h"
gen_table "sigillcode" "ILL_[A-Z]+[[:space:]]+[0-9]+" "sys/signal.h"
gen_table "sigsegvcode" "SEGV_[A-Z]+[[:space:]]+[0-9]+" "sys/signal.h"
gen_table "sigtrapcode" "TRAP_[A-Z]+[[:space:]]+[0-9]+" "sys/signal.h"
gen_table "sockdomain" "PF_[[:alnum:]]+[[:space:]]+" "sys/socket.h"
gen_table "sockfamily" "AF_[[:alnum:]]+[[:space:]]+" "sys/socket.h"
gen_table "sockipproto" "IPPROTO_[[:alnum:]]+[[:space:]]+" "netinet/in.h"
gen_table "sockopt" "SO_[A-Z]+[[:space:]]+0x[0-9]+" "sys/socket.h"
gen_table "sockoptip" "(IP_[[:alnum:]_]+|MCAST_[[:alnum:]_]+_GROUP)[[:space:]]+" "netinet/in.h" "IP_DEFAULT|IP_MIN|IP_MAX|IP_PORTRANGE"
gen_table "sockoptipv6" "IPV6_[[:alnum:]_]+[[:space:]]+[0-9]+" "netinet6/in6.h" "IPV6_ADDR_|IPV6_TAG_DIRECT|IPV6_OPTIONS|IPV6_RECVOPTS|IPV6_RECVRETOPTS|IPV6_RECVDSTADDR|IPV6_RETOPTS|IPV6_2292|IPV6_RECVRTHDRDSTOPTS|IPV6_REACHCONF|IPV6_PKTOPTIONS"
gen_table "sockoptsctp" "SCTP_[[:alnum:]_]+[[:space:]]+[0-9]+" "netinet/sctp.h"
gen_table "sockopttcp" "TCP_[[:alnum:]_]+[[:space:]]+[0-9]+" "netinet/tcp.h" "TCP_MIN|TCP_MAX[^S]|TCP_MSS|TCP_[[:alnum:]_]+_MAX"
gen_table "sockoptudp" "UDP_[[:alnum:]]+[[:space:]]+[0-9]+" "netinet/udp.h" "UDP_ENCAP_"
gen_table "sockoptudplite" "UDPLITE_[[:alnum:]_]+[[:space:]]+[0-9]+" "netinet/udplite.h"
gen_table "socktype" "SOCK_[A-Z]+[[:space:]]+[1-9]+[0-9]*" "sys/socket.h"
gen_table "thrcreateflags" "THR_[A-Z]+[[:space:]]+0x[0-9]+" "sys/thr.h"
gen_table "umtxop" "UMTX_OP_[[:alnum:]_]+[[:space:]]+[0-9]+" "sys/umtx.h"
gen_table "vmprot" "VM_PROT_[A-Z]+[[:space:]]+\(\(vm_prot_t\)[[:space:]]+0x[0-9]+\)" "vm/vm.h"
gen_table "vmresult" "KERN_[A-Z_]+[[:space:]]+[0-9]+" "vm/vm_param.h"
gen_table "wait6opt" "W[A-Z]+[[:space:]]+[0-9]+" "sys/wait.h"
gen_table "seekwhence" "SEEK_[A-Z]+[[:space:]]+[0-9]+" "sys/unistd.h"
gen_table "fcntlcmd" "F_[A-Z0-9_]+[[:space:]]+[0-9]+[[:space:]]+" "sys/fcntl.h" "F_CANCEL|F_..LCK"
gen_table "mmapflags" "MAP_[A-Z_]+[[:space:]]+0x[0-9A-Fa-f]+" "sys/mman.h"
gen_table "rtpriofuncs" "RTP_[A-Z]+[[:space:]]+[0-9]+" "sys/rtprio.h"
gen_table "msgflags" "MSG_[A-Z]+[[:space:]]+0x[0-9]+" "sys/socket.h" "MSG_SOCALLBCK|MSG_MORETOCOME"
gen_table "sigcode" "SI_[A-Z]+[[:space:]]+0(x[0-9abcdef]+)?" "sys/signal.h"
gen_table "umtxcvwaitflags" "CVWAIT_[A-Z_]+[[:space:]]+0x[0-9]+" "sys/umtx.h"
gen_table "umtxrwlockflags" "URWLOCK_PREFER_READER[[:space:]]+0x[0-9]+" "sys/umtx.h"
gen_table "caprights" "CAP_[A-Z_]+[[:space:]]+CAPRIGHT\([0-9],[[:space:]]+0x[0-9]{16}ULL\)" "sys/capsicum.h"
gen_table "sctpprpolicy" "SCTP_PR_SCTP_[A-Z_]+[[:space:]]+0x[0-9]+" "netinet/sctp_uio.h" "SCTP_PR_SCTP_ALL"
gen_table "cmsgtypesocket" "SCM_[A-Z_]+[[:space:]]+0x[0-9]+" "sys/socket.h"
if [ -e "${include_dir}/x86/sysarch.h" ]; then
gen_table "sysarchnum" "(AMD64|I386)_[A-Z86_]+[[:space:]]+[0-9]+" "x86/sysarch.h"
else
gen_table "sysarchnum" "[A-Z_]+[[:space:]]+[0-9]+" "machine/sysarch.h"
fi
# Generate a .depend file for our output file
if [ -n "$output_file" ]; then
depend_tmp=$(mktemp -u)
{
echo "$output_file: \\"
echo "$all_headers" | tr ' ' '\n' | sort -u |
sed -e "s,^, $include_dir/," -e 's,$, \\,'
echo
} > "$depend_tmp"
if cmp -s "$output_tmp" "$output_file"; then
rm -f "$output_tmp" "$depend_tmp"
else
mv -f "$depend_tmp" ".depend.${output_file}"
mv -f "$output_tmp" "$output_file"
fi
fi
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