274 lines
9.1 KiB
Plaintext
274 lines
9.1 KiB
Plaintext
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#!/bin/sh
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#
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# SYNOPSIS
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# fixproto TARGET-DIR SOURCE-DIR-ALL SOURCE-DIR-STD
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#
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# COPYRIGHT
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# Copyright (C) 1993, 1994 Free Software Foundation, Inc.
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# This file is part of GNU CC.
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#
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# GNU CC is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2, or (at your option)
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# any later version.
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#
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# GNU CC is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with GNU CC; see the file COPYING. If not, write to
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# the Free Software Foundation, 59 Temple Place - Suite 330,
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# Boston, MA 02111-1307, USA.
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#
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# DESCRIPTION
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# Adjunct script for GNU CC to populate a directory with ANSI,
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# Posix.1, and C++ compatible header files.
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#
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# Each file found under SOURCE-DIR-ALL is analyzed and "fixed."
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# Only standard ANSI/POSIX files found under SOURCE-DIR-STD
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# are analyzed and "fixed."
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# The SOURCE-DIRs are searched in order; a file found
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# under multiple SOURCE-DIRs is only handled for the first one.
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#
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# STRATEGY
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# Each include file is fed through cpp, and the scan-decls program
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# parses it, and emits any found function declarations.
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# The fix-header program analyzes the scan-decls output,
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# together with the original include file, and writes a "fixed"
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# include file, if needed.
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#
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# The comment at the beginning of fix-header.c lists specifically
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# what kind of changes are made.
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#
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# NOTE
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# Some file space will be wasted, because the original header
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# files are copied. An earlier version just included the original
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# by "reference", using GNU cpp's #include_next mechanism.
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# This is currently not done, partly because #include_next is
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# fragile (susceptible to version incompatibilities, and depends
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# and GCC-specific features), and partly for performance reasons.
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#
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# AUTHORS
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# Ron Guilmette (rfg@netcom.com) (original idea and code)
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# Per Bothner (bothner@cygnus.com) (major re-write)
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progname=$0
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progname=`basename $progname`
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original_dir=`pwd`
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FIX_HEADER=${FIX_HEADER-$original_dir/fix-header}
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DEFINES="-D__STDC__=0 -D__cplusplus ${FIXPROTO_DEFINES}"
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if [ `echo $1 | wc -w` = 0 ] ; then
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echo $progname\: usage\: $progname target-dir \[ source-dir \.\.\. \]
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exit 1
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fi
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std_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"
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rel_target_dir=$1
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# All files in $src_dir_all (normally same as $rel_target_dir) are
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# processed.
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src_dir_all=$2
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# In $src_dir_std (normally same as /usr/include), only the
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# "standard" ANSI/POSIX files listed in $std_files are processed.
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src_dir_std=$3
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if [ `expr $rel_target_dir : '\(.\)'` != '/' ] ; then
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abs_target_dir=$original_dir/$rel_target_dir
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else
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abs_target_dir=$rel_target_dir
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fi
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# Determine whether this system has symbolic links.
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if ln -s X $rel_target_dir/ShouldNotExist 2>/dev/null; then
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rm -f $rel_target_dir/ShouldNotExist
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LINKS=true
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elif ln -s X /tmp/ShouldNotExist 2>/dev/null; then
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rm -f /tmp/ShouldNotExist
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LINKS=true
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else
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LINKS=false
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fi
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if [ \! -d $abs_target_dir ] ; then
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echo $progname\: creating directory $rel_target_dir
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mkdir $abs_target_dir
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fi
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echo $progname\: populating \`$rel_target_dir\'
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include_path=""
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if [ `echo $* | wc -w` != 0 ] ; then
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for rel_source_dir in $src_dir_all $src_dir_std; do
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if [ `expr $rel_source_dir : '\(.\)'` != '/' ] ; then
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abs_source_dir=$original_dir/$rel_source_dir
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else
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abs_source_dir=$rel_source_dir
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fi
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include_path="$include_path -I$abs_source_dir"
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done
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fi
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required_stdlib_h="abort abs atexit atof atoi atol bsearch calloc exit free getenv labs malloc putenv qsort rand realloc srand strtod strtol strtoul system"
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# "div ldiv", - ignored because these depend on div_t, ldiv_t
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# ignore these: "mblen mbstowcs mbstowc wcstombs wctomb"
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# Left out getgroups, because SunOS4 has incompatible BSD and SVR4 versions.
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# Should perhaps also add NULL
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required_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"
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done_dirs=""
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echo "" >fixproto.list
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for code in ALL STD ; do
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subdirs="."
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case $code in
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ALL)
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rel_source_dir=$src_dir_all
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dirs="."
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levels=2
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while $LINKS && test -n "$dirs" -a $levels -gt 0
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do
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levels=`expr $levels - 1`
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newdirs=
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for d in $dirs ; do
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# Find all directories under $d, relative to $d, excluding $d itself.
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# Assume directory names ending in CC or containing ++ are
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# for C++, so skip those.
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subdirs="$subdirs "`cd $rel_source_dir/$d; find . -type d -print | \
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sed -e '/^\.$/d' -e "s|^\./|${d}/|" -e 's|^\./||' \
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-e '/CC$/d' -e '/[+][+]/d'`
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links=
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links=`cd $rel_source_dir; find $d/. -type l -print | \
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sed -e "s|$d/./|$d/|" -e 's|^\./||'`
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for link in $links --dummy-- ; do
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test -d $rel_source_dir/$link/. && newdirs="$newdirs $link"
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done
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done
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dirs="$newdirs"
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subdirs="$subdirs $newdirs"
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done
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;;
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STD)
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rel_source_dir=$src_dir_std
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;;
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esac
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if [ `expr $rel_source_dir : '\(.\)'` != '/' ] ; then
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abs_source_dir=$original_dir/$rel_source_dir
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else
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abs_source_dir=$rel_source_dir
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fi
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if [ \! -d $abs_source_dir ] ; then
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echo $progname\: warning\: no such directory\: \`$rel_source_dir\'
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continue
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fi
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for rel_source_subdir in $subdirs; do
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abs_target_subdir=${abs_target_dir}/${rel_source_subdir}
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if [ \! -d $abs_target_subdir ] ; then
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mkdir $abs_target_subdir
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fi
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# Append "/"; remove initial "./". Hence "." -> "" and "sys" -> "sys/".
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rel_source_prefix=`echo $rel_source_subdir | sed -e 's|$|/|' -e 's|^./||'`
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case $code in
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ALL)
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# The 'sed' is in case the *.h matches nothing, which yields "*.h"
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# which would then get re-globbed in the current directory. Sigh.
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rel_source_files=`cd ${abs_source_dir}/${rel_source_subdir}; echo *.h | sed -e 's|[*].h|NONE|'`
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;;
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STD)
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files_to_check="$std_files"
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rel_source_files=""
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# Also process files #included by the $std_files.
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while [ -n "${files_to_check}" ]
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do
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new_files_to_check=""
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for file in $files_to_check ; do
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xxfile=`echo $file | sed -e 's|/\([^/\.][^/\.]*\)/\.\./|/|'`
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# Create the dir where this file will go when fixed.
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xxdir=`echo ./$file | sed -e 's|/[^/]*$||'`
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if [ \! -d $abs_target_subdir/$xxdir ] ; then
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mkdir $abs_target_subdir/$xxdir
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fi
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# Just in case we have edited out a symbolic link
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if [ -f $src_dir_std/$file -a -f $src_dir_std/$xxfile ] ; then
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file=$xxfile
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fi
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case " $rel_source_files " in
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*" ${file} "*)
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# Already seen $file; nothing to do
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;;
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*)
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if test -f $src_dir_std/$file ; then
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rel_dir=`echo $file | sed -n -e 's|^\(.*/\)[^/]*$|\1|p'`
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# For #include "foo.h", that might be either "foo.h"
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# or "${rel_dir}foo.h (or something bogus).
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new_files_to_check="$new_files_to_check "`sed -n \
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-e 's@ @ @g' \
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-e 's@^ *# *include *<\([^>]*\)>.*$@\1@p' -e \
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's@^ *# *include *\"\([^\"]*\)\".*$@\1 '$rel_dir'\1@p'\
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<$src_dir_std/$file`
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rel_source_files="$rel_source_files $file"
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fi
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;;
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esac
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done
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files_to_check="$new_files_to_check"
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done
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rel_source_files="$rel_source_files"
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;;
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esac
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for filename in $rel_source_files ; do
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rel_source_file=${rel_source_prefix}${filename}
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abs_source_file=$abs_source_dir/$rel_source_file
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abs_target_file=$abs_target_dir/$rel_source_file
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if test "$filename" = 'NONE' ; then
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echo "(No *.h files in $abs_source_dir/$rel_source_subdir)"
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# If target file exists, check if was written while processing one
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# of the earlier source directories; if so ignore it.
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elif test -f $abs_target_file -a -n "$done_dirs" \
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&& grep "$rel_source_file" fixproto.list >/dev/null
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then true
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else
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$FIX_HEADER $rel_source_file $abs_source_file $abs_target_file ${DEFINES} $include_path
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echo "${rel_source_file}" >>fixproto.list
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fi
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done
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done
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done_dirs="$done_dir $rel_source_dir"
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done
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# This might be more cleanly moved into the main loop, by adding
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# a <dummy> source directory at the end. FIXME!
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for rel_source_file in unistd.h stdlib.h
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do
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if grep "$rel_source_file" fixproto.list >/dev/null
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then true
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else
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echo Adding missing $rel_source_file
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rel_source_ident=`echo $rel_source_file | tr ./ __`
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required_list=`eval echo '${required_'${rel_source_ident}'-}'`
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cat >tmp.h <<EOF
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#ifndef ${rel_source_ident}
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#define ${rel_source_ident}
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#endif
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EOF
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${FIX_HEADER} $rel_source_file tmp.h $abs_target_dir/$rel_source_file ${DEFINES} $include_path
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rm tmp.h
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fi
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done
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exit 0
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