1#!/bin/sh 2# 3# SYNOPSIS 4# fixproto TARGET-DIR SOURCE-DIR-ALL SOURCE-DIR-STD 5# 6# COPYRIGHT 7# Copyright (C) 1993, 1994, 1997, 1998, 2002 Free Software Foundation, Inc. 8# This file is part of GCC. 9# 10# GCC is free software; you can redistribute it and/or modify 11# it under the terms of the GNU General Public License as published by 12# the Free Software Foundation; either version 2, or (at your option) 13# any later version. 14# 15# GCC is distributed in the hope that it will be useful, 16# but WITHOUT ANY WARRANTY; without even the implied warranty of 17# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18# GNU General Public License for more details. 19# 20# You should have received a copy of the GNU General Public License 21# along with GCC; see the file COPYING. If not, write to 22# the Free Software Foundation, 59 Temple Place - Suite 330, 23# Boston, MA 02111-1307, USA. 24# 25# DESCRIPTION 26# Adjunct script for GCC to populate a directory with ANSI, 27# Posix.1, and C++ compatible header files. 28# 29# Each file found under SOURCE-DIR-ALL is analyzed and "fixed." 30# Only standard ANSI/POSIX files found under SOURCE-DIR-STD 31# are analyzed and "fixed." 32# The SOURCE-DIRs are searched in order; a file found 33# under multiple SOURCE-DIRs is only handled for the first one. 34# 35# STRATEGY 36# Each include file is fed through cpp, and the scan-decls program 37# parses it, and emits any found function declarations. 38# The fix-header program analyzes the scan-decls output, 39# together with the original include file, and writes a "fixed" 40# include file, if needed. 41# 42# The comment at the beginning of fix-header.c lists specifically 43# what kind of changes are made. 44# 45# NOTE 46# Some file space will be wasted, because the original header 47# files are copied. An earlier version just included the original 48# by "reference", using GNU cpp's #include_next mechanism. 49# This is currently not done, partly because #include_next is 50# fragile (susceptible to version incompatibilities, and depends 51# and GCC-specific features), and partly for performance reasons. 52# 53# AUTHORS 54# Ron Guilmette (rfg@netcom.com) (original idea and code) 55# Per Bothner (bothner@cygnus.com) (major re-write) 56 57dirname=`echo "$0" | sed 's,^[^/]*$,.,;s,//*[^/]*$,,'` 58progname=`echo "$0" | sed 's,.*/,,'` 59original_dir=`${PWDCMD-pwd}` 60FIX_HEADER=${FIX_HEADER-$original_dir/fix-header} 61DEFINES="-D__STDC__=0 -D__cplusplus ${FIXPROTO_DEFINES}" 62 63if mkdir -p . 2> /dev/null; then 64 # Great, mkdir accepts -p 65 mkinstalldirs="mkdir -p" 66else 67 # We expect mkinstalldirs to be passed in the environment. 68 # If it is not, assume it is in the directory that contains this script. 69 mkinstalldirs=${mkinstalldirs-"/bin/sh $dirname/mkinstalldirs"} 70 if $mkinstalldirs . 2> /dev/null; then 71 : 72 else 73 # But, in case of failure, fallback to plain mkdir, and hope it works 74 mkinstalldirs=mkdir 75 fi 76fi 77 78if [ `echo $1 | wc -w` = 0 ] ; then 79 echo $progname\: usage\: $progname target-dir \[ source-dir \.\.\. \] 80 exit 1 81fi 82 83std_files="ctype.h dirent.h errno.h curses.h fcntl.h grp.h locale.h math.h pwd.h setjmp.h signal.h stdio.h stdlib.h string.h sys/socket.h sys/stat.h sys/times.h sys/resource.h sys/utsname.h sys/wait.h tar.h termios.h time.h unistd.h utime.h" 84 85rel_target_dir=$1 86# All files in $src_dir_all (normally same as $rel_target_dir) are 87# processed. 88src_dir_all=$2 89# In $src_dir_std (normally same as /usr/include), only the 90# "standard" ANSI/POSIX files listed in $std_files are processed. 91src_dir_std=$3 92 93case $rel_target_dir in 94 /* | [A-Za-z]:[\\/]*) 95 abs_target_dir=$rel_target_dir 96 ;; 97 *) 98 abs_target_dir=$original_dir/$rel_target_dir 99 ;; 100esac 101 102# Determine whether this system has symbolic links. 103if ln -s X $rel_target_dir/ShouldNotExist 2>/dev/null; then 104 rm -f $rel_target_dir/ShouldNotExist 105 LINKS=true 106elif ln -s X /tmp/ShouldNotExist 2>/dev/null; then 107 rm -f /tmp/ShouldNotExist 108 LINKS=true 109else 110 LINKS=false 111fi 112 113if [ \! -d $abs_target_dir ] ; then 114 echo $progname\: creating directory $rel_target_dir 115 $mkinstalldirs $abs_target_dir 116fi 117 118echo $progname\: populating \`$rel_target_dir\' 119 120include_path="" 121 122if [ `echo $* | wc -w` != 0 ] ; then 123 for rel_source_dir in $src_dir_all $src_dir_std; do 124 case $rel_source_dir in 125 /* | [A-Za-z]:[\\/]*) 126 abs_source_dir=$rel_source_dir 127 ;; 128 *) 129 abs_source_dir=$original_dir/$rel_source_dir 130 ;; 131 esac 132 include_path="$include_path -I$abs_source_dir" 133 done 134fi 135 136required_stdlib_h="abort abs atexit atof atoi atol bsearch calloc exit free getenv labs malloc putenv qsort rand realloc srand strtod strtol strtoul system" 137# "div ldiv", - ignored because these depend on div_t, ldiv_t 138# ignore these: "mblen mbstowcs mbstowc wcstombs wctomb" 139# Left out getgroups, because SunOS4 has incompatible BSD and SVR4 versions. 140# Should perhaps also add NULL 141required_unistd_h="_exit access alarm chdir chown close ctermid cuserid dup dup2 execl execle execlp execv execve execvp fork fpathconf getcwd getegid geteuid getgid getlogin getopt getpgrp getpid getppid getuid isatty link lseek pathconf pause pipe read rmdir setgid setpgid setsid setuid sleep sysconf tcgetpgrp tcsetpgrp ttyname unlink write" 142 143done_dirs="" 144subdirs_made="" 145echo "" >fixproto.list 146 147for code in ALL STD ; do 148 149 subdirs="." 150 151 case $code in 152 ALL) 153 rel_source_dir=$src_dir_all 154 155 dirs="." 156 levels=2 157 while $LINKS && test -n "$dirs" -a $levels -gt 0 158 do 159 levels=`expr $levels - 1` 160 newdirs= 161 for d in $dirs ; do 162 # Find all directories under $d, relative to $d, excluding $d itself. 163 # Assume directory names ending in CC or containing ++ are 164 # for C++, so skip those. 165 subdirs="$subdirs "`cd $rel_source_dir/$d; find . -type d -print | \ 166 sed -e '/^\.$/d' -e "s|^\./|${d}/|" -e 's|^\./||' \ 167 -e '/CC$/d' -e '/[+][+]/d'` 168 links= 169 links=`cd $rel_source_dir; find $d/. -type l -print | \ 170 sed -e "s|$d/./|$d/|" -e 's|^\./||'` 171 for link in $links --dummy-- ; do 172 test -d $rel_source_dir/$link/. && newdirs="$newdirs $link" 173 done 174 done 175 dirs="$newdirs" 176 subdirs="$subdirs $newdirs" 177 done 178 ;; 179 STD) 180 rel_source_dir=$src_dir_std 181 ;; 182 esac 183 184 case $rel_source_dir in 185 /* | [A-Za-z]:[\\/]*) 186 abs_source_dir=$rel_source_dir 187 ;; 188 *) 189 abs_source_dir=$original_dir/$rel_source_dir 190 ;; 191 esac 192 193 if [ \! -d $abs_source_dir ] ; then 194 echo $progname\: warning\: no such directory\: \`$rel_source_dir\' 195 continue 196 fi 197 198 for rel_source_subdir in $subdirs; do 199 200 abs_target_subdir=${abs_target_dir}/${rel_source_subdir} 201 if [ \! -d $abs_target_subdir ] ; then 202 if $mkinstalldirs $abs_target_subdir ; then 203 subdirs_made="$abs_target_subdir $subdirs_made" 204 fi 205 fi 206 # Append "/"; remove initial "./". Hence "." -> "" and "sys" -> "sys/". 207 rel_source_prefix=`echo $rel_source_subdir | sed -e 's|$|/|' -e 's|^./||'` 208 209 case $code in 210 ALL) 211 # The 'sed' is in case the *.h matches nothing, which yields "*.h" 212 # which would then get re-globbed in the current directory. Sigh. 213 rel_source_files=`cd ${abs_source_dir}/${rel_source_subdir}; echo *.h | sed -e 's|[*].h|NONE|'` 214 ;; 215 216 STD) 217 files_to_check="$std_files" 218 rel_source_files="" 219 220 # Also process files #included by the $std_files. 221 while [ -n "${files_to_check}" ] 222 do 223 new_files_to_check="" 224 for file in $files_to_check ; do 225 xxfile=`echo $file | sed -e 's|/\([^/\.][^/\.]*\)/\.\./|/|'` 226 # Create the dir where this file will go when fixed. 227 xxdir=`echo ./$file | sed -e 's|/[^/]*$||'` 228 if [ \! -d $abs_target_subdir/$xxdir ] ; then 229 if $mkinstalldirs $abs_target_subdir/$xxdir ; then 230 subdirs_made="$abs_target_subdir/$xxdir $subdirs_made" 231 fi 232 fi 233 # Just in case we have edited out a symbolic link 234 if [ -f $src_dir_std/$file -a -f $src_dir_std/$xxfile ] ; then 235 file=$xxfile 236 fi 237 case " $rel_source_files " in 238 *" ${file} "*) 239 # Already seen $file; nothing to do 240 ;; 241 *) 242 if test -f $src_dir_std/$file ; then 243 rel_dir=`echo $file | sed -n -e 's|^\(.*/\)[^/]*$|\1|p'` 244 # For #include "foo.h", that might be either "foo.h" 245 # or "${rel_dir}foo.h (or something bogus). 246 new_files_to_check="$new_files_to_check "`sed -n \ 247 -e 's@ @ @g' \ 248 -e 's@^ *# *include *<\([^>]*\)>.*$@\1@p' -e \ 249 's@^ *# *include *\"\([^\"]*\)\".*$@\1 '$rel_dir'\1@p'\ 250 <$src_dir_std/$file` 251 rel_source_files="$rel_source_files $file" 252 fi 253 ;; 254 esac 255 done 256 files_to_check="$new_files_to_check" 257 done 258 rel_source_files="$rel_source_files" 259 ;; 260 esac 261 262 for filename in $rel_source_files ; do 263 rel_source_file=${rel_source_prefix}${filename} 264 abs_source_file=$abs_source_dir/$rel_source_file 265 abs_target_file=$abs_target_dir/$rel_source_file 266 267 if test "$filename" = 'NONE' ; then 268 echo "(No *.h files in $abs_source_dir/$rel_source_subdir)" 269 # If target file exists, check if was written while processing one 270 # of the earlier source directories; if so ignore it. 271 elif test -f $abs_target_file -a -n "$done_dirs" \ 272 && grep "$rel_source_file" fixproto.list >/dev/null 273 then true 274 else 275 $FIX_HEADER $rel_source_file $abs_source_file $abs_target_file ${DEFINES} $include_path 276 if test $? != 0 ; then exit 1 ; fi 277 echo "${rel_source_file}" >>fixproto.list 278 fi 279 done 280 done 281 done_dirs="$done_dir $rel_source_dir" 282done 283 284# This might be more cleanly moved into the main loop, by adding 285# a <dummy> source directory at the end. FIXME! 286for rel_source_file in unistd.h stdlib.h 287do 288 if grep "$rel_source_file" fixproto.list >/dev/null 289 then true 290 else 291 echo Adding missing $rel_source_file 292 rel_source_ident=`echo $rel_source_file | tr ./ __` 293 required_list=`eval echo '${required_'${rel_source_ident}'-}'` 294 cat >tmp.h <<EOF 295#ifndef __${rel_source_ident} 296#define __${rel_source_ident} 297EOF 298 if test $rel_source_file = stdlib.h 299 then 300 # Make sure it contains a definition of size_t. 301 cat >>tmp.h <<EOF 302 303#define __need_size_t 304#include <stddef.h> 305EOF 306 fi 307 cat >>tmp.h <<EOF 308 309#endif /* __${rel_source_ident} */ 310EOF 311 ${FIX_HEADER} $rel_source_file tmp.h $abs_target_dir/$rel_source_file ${DEFINES} $include_path 312 if test $? != 0 ; then exit 1 ; fi 313 if test -f $abs_target_dir/$rel_source_file 314 then 315 rm tmp.h 316 else 317 mv tmp.h $abs_target_dir/$rel_source_file 318 fi 319 fi 320done 321 322# Remove any directories that we made that are still empty. 323rmdir $subdirs_made 2>/dev/null 324 325exit 0 326