gcc/fixproto

   1 #!/bin/sh
   2 #
   3 # SYNOPSIS
   4 #       fixproto TARGET-DIR [ SOURCE-DIR ... ]
   5 #
   6 # COPYRIGHT
   7 #       Copyright (C) 1993 Free Software Foundation, Inc.
   8 #       This file is part of GNU CC.
   9 #
  10 #       GNU CC 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 #       GNU CC 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 GNU CC; see the file COPYING.  If not, write to
  22 #       the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  23 #
  24 # DESCRIPTION
  25 #       Adjunct script for GNU CC to populate a directory with ANSI,
  26 #       Posix.1, and C++ compatible header files.
  27 #
  28 #       Each file found under each SOURCE-DIR is analized and "fixed."
  29 #       The SOURCE-DIRs are searched in order; a file found
  30 #       under multiple SOURCE-DIRs is only handled for the first one.
  31 #
  32 # STRATEGY
  33 #       Each include file is fed through cpp, and the scan-decls program
  34 #       parses it, and emits any found function declarations.
  35 #       The patch-header program analyzes the scan-decls output,
  36 #       together with the original include file, and writes a "fixed"
  37 #       include file, if needed.
  38 #
  39 #       The comment at the beginning of patch-header.c lists specifically
  40 #       what kind of changes are made.
  41 #
  42 # NOTE
  43 #       Some file space will be wasted, because the original header
  44 #       files are copied.  An earlier version just included the original
  45 #       by "reference", using GNU cpp's #include_next mechanism.
  46 #       This is currently not done, partly because #include_next is
  47 #       fragile (susceptible to version incompatibilties, and depends
  48 #       and GCC-specific features), and partly for performance reasons.
  49 #
  50 # AUTHORS
  51 #       Ron Guilmette (rfg@netcom.com) (original idea and code)
  52 #       Per Bothner (bothner@cygnus.com) (major re-write)
  53
  54 progname=$0
  55 progname=`basename $progname`
  56 original_dir=`pwd`
  57 CC=gcc
  58 CPP=${CPP-./cpp}
  59 #CPP="${CC} -E"
  60 if [ `echo $1 | wc -w` = 0 ] ; then
  61   echo $progname\: usage\: $progname target-dir \[ source-dir \.\.\. \]
  62   exit 1
  63 fi
  64 rel_target_dir=$1
  65 shift
  66
  67 if [ `expr $rel_target_dir : '\(.\)'` != '/' ] ; then
  68   abs_target_dir=$original_dir/$rel_target_dir
  69 else
  70   abs_target_dir=$rel_target_dir
  71 fi
  72
  73 if [ \! -d $abs_target_dir ] ; then
  74   echo $progname\: creating directory $rel_target_dir
  75   mkdir $abs_target_dir
  76 fi
  77
  78 echo $progname\: populating \`$rel_target_dir\'
  79
  80 required_ctype_h="isalnum isalpha iscntrl isdigit isgraph islower isprint ispunct isspace isupper isxdigit tolower toupper"
  81 required_dirent_h="closedir opendir readdir rewinddir"
  82 extra_check_errno_h="errno"
  83 required_curses_h="box delwin endwin getcurx getcury initscr mvcur mvwprintw mvwscanw newwin overlay overwrite scroll subwin touchwin waddstr wclear wclrtobot wclrtoeol waddch wdelch wdeleteln werase wgetch wgetstr winsch winsertln wmove wprintw wrefresh wscanw wstandend wstandout"
  84 required_fcntl_h="creat fcntl open"
  85 # required_float_h=...
  86 required_grp_h="getgrgid getgrnam"
  87 # Maybe also "getgrent fgetgrent setgrent endgrent" */
  88 # required_limit_h= /* Lots of macros */
  89 required_locale_h="localeconv setlocale"
  90 required_math_h="acos asin atan atan2 ceil cos cosh exp fabs floor fmod frexp ldexp log10 log modf pow sin sinh sqrt tan tanh"
  91 extra_check_math_h="HUGE_VAL"
  92
  93 required_pwd_h="getpwnam getpwuid"
  94 required_setjmp_h="longjmp setjmp siglongjmp sigsetjmp"
  95 required_signal_h="kill raise sigaction sigaddset sigdelset sigemptyset sigfillset sigismember signal sigpending sigprocmask sigsuspend"
  96 # *stdarg_h *stddef.h  - supplied by gcc
  97 required_stdio_h="clearerr fclose feof ferror fflush fgetc fgetpos fgets fopen fprintf fputc fputs fread freopen fscanf fseek fsetpos ftell fwrite getc getchar gets perror printf putc putchar puts remove rename rewind scanf setbuf setvbuf sprintf sscanf tmpfile tmpnam ungetc vfprintf vprintf vsprintf"
  98 # Should perhaps also handle NULL, EOF, ... ?
  99 required_stdlib_h="abort abs atexit atof atoi atol bsearch calloc exit free getenv labs malloc qsort rand realloc srand strtod strtol strtoul system"
 100 # "div ldiv", - ignored because these depend on div_t, ldiv_t
 101 # ignore these: "mblen mbstowcs mbstowc wcstombs wctomb"
 102 # Should perhaps also add NULL
 103 required_string_h="memchr memcmp memcpy memmove memset strcat strchr strcmp strcoll strcpy strcspn strerror strlen strncat strncmp"
 104 # Should perhaps also add NULL and size_t
 105 required_sys_stat_h="chmod fstat mkdir mkfifo stat umask"
 106 extra_check_sys_stat_h="S_ISDIR S_ISBLK S_ISCHR S_ISFIFO S_ISREG S_ISLNK S_IFDIR S_IFBLK S_IFCHR S_IFIFO S_IFREG S_IFLNK"
 107 required_sys_times_h="times"
 108 # "sys_types.h" add types (not in old g++-include)
 109 required_sys_resource_h="getrusage getrlimit setrlimit getpriority setpriority"
 110 required_sys_utsname_h="uname"
 111 required_sys_wait_h="wait waitpid"
 112 extra_check_sys_wait_h="WEXITSTATUS WIFEXITED WIFSIGNALED WIFSTOPPED WSTOPSIG WTERMSIG WNOHANG WNOTRACED"
 113 # required_tar.h=
 114 required_termios_h="cfgetispeed cfgetospeed cfsetispeed cfsetospeed tcdrain tcflow tcflush tcgetattr tcsendbreak tcsetattr"
 115 required_time_h="asctime clock ctime difftime gmtime localtime mktime strftime time tzset"
 116 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 getgroups getlogin getpgrp getpid getppid getuid isatty link lseek pathconf pause pipe read rmdir setgid setpgid setsid setuid sleep sysconf tcgetpgrp tcsetpgrp ttyname unlink write"
 117
 118 include_path=""
 119
 120 if [ `echo $* | wc -w` != 0 ] ; then
 121   for rel_source_dir in $*; do
 122     if [ `expr $rel_source_dir : '\(.\)'` != '/' ] ; then
 123       abs_source_dir=$original_dir/$rel_source_dir
 124     else
 125       abs_source_dir=$rel_source_dir
 126     fi
 127     include_path="$include_path -I$abs_source_dir"
 128   done
 129 fi
 130
 131 done_dirs=""
 132 done_files=""
 133
 134 if [ `echo $* | wc -w` != 0 ] ; then
 135   for rel_source_dir in $* ; do
 136     if [ `expr $rel_source_dir : '\(.\)'` != '/' ] ; then
 137       abs_source_dir=$original_dir/$rel_source_dir
 138     else
 139       abs_source_dir=$rel_source_dir
 140     fi
 141     if [ \! -d $abs_source_dir ] ; then
 142       echo $progname\: warning\: no such directory\: \`$rel_source_dir\'
 143       continue
 144     fi
 145     rel_source_subdirs=`cd $abs_source_dir; find . -type d -print | sed -e 's%^\./%%' -e 's/\.//'`
 146     if [ `echo $rel_source_subdirs | wc -w` != 0 ] ; then
 147       for rel_source_subdir in $rel_source_subdirs; do
 148         abs_target_subdir=$abs_target_dir/$rel_source_subdir
 149         if [ \! -d $abs_target_subdir ] ; then
 150           mkdir $abs_target_subdir
 151         fi
 152       done
 153     fi
 154
 155     rel_source_files=`cd $abs_source_dir; find . '!' -type d -name \*.h -print | sed 's%^\./%%'`
 156
 157     if [ `echo $rel_source_files | wc -w` != 0 ] ; then
 158       for rel_source_file in $rel_source_files; do
 159         abs_source_file=$abs_source_dir/$rel_source_file
 160         abs_target_file=$abs_target_dir/$rel_source_file
 161
 162         # If target file exists, check if was written while processing one
 163         # of the earlier source directories;  if so ignore it.
 164         if test -f $abs_target_file -a -n "$done_dirs" \
 165           && echo " $done_files " |grep " $rel_source_file " >/dev/null
 166         then
 167           echo $abs_target_file exists, $abs_source_file is ignored
 168         else
 169           # echo doing $rel_source_file from $abs_source_dir
 170           rel_source_ident=`echo $rel_source_file | tr ./- ___`
 171           required_list=`eval echo '${required_'${rel_source_ident}'-}'`
 172           extra_check_list=`eval echo '${extra_check_'${rel_source_ident}'-}'`
 173           rm -f tmp.c tmp.i
 174           echo "#include <${rel_source_file}>" >tmp.c
 175           for macro in ${required_list} ${extra_check_list}
 176           do
 177             echo "#ifdef ${macro}" >>tmp.c
 178             echo "__DEFINED_MACRO_${macro};" >>tmp.c
 179             echo "#endif" >>tmp.c
 180           done
 181           if ${CPP} -D__STDC__ -D__cplusplus -D_POSIX_SOURCE $include_path tmp.c >tmp.i
 182           then
 183             case $rel_source_file in
 184               stdio.h)
 185                 if grep _flsbuf <$abs_source_file >/dev/null ; then
 186                   required_list="$required_list _flsbuf _filbuf"
 187                 fi ;;
 188             esac
 189             cat $abs_source_file >tmp.c
 190 #           echo Doing: "$original_dir/scan-decls <tmp.i | $original_dir/patch-header $rel_source_file tmp.c $abs_target_file \"$required_list\""
 191
 192             $original_dir/scan-decls <tmp.i | \
 193              $original_dir/patch-header $rel_source_file tmp.c $abs_target_file "$required_list"
 194           else
 195             echo "${progname}: ${CPP} couldn't grok ${abs_source_file}"
 196           fi
 197           done_files="${done_files} ${rel_source_file}"
 198         fi
 199       done
 200       rm -f tmp.c tmp.i
 201     fi
 202     # check for broken assert.h that needs stdio.h
 203     if test -f $abs_source_dir/assert.h -a \! -f $abs_target_dir/assert.h \
 204       && grep 'stderr' $abs_source_dir/assert.h >/dev/null
 205     then
 206       if grep 'include.*stdio.h' $abs_source_dir/assert.h >/dev/null
 207       then true
 208       else
 209         echo 'Fixing broken assert.h (needs stdio.h)'
 210         cat $abs_source_dir/assert.h >$abs_target_dir/assert.h
 211         echo '#include <stdio.h>' >>$abs_target_dir/assert.h
 212       fi
 213     fi
 214     done_dirs="$done_dir $rel_source_dir"
 215   done
 216 fi
 217
 218 for rel_source_file in unistd.h stdlib.h
 219 do
 220   if echo " $done_files " | grep " $rel_source_file " >/dev/null
 221   then true
 222   else
 223     echo Adding missing $rel_source_file
 224     rel_source_ident=`echo $rel_source_file | tr ./- ___`
 225     required_list=`eval echo '${required_'${rel_source_ident}'-}'`
 226     cat >tmp.h <<EOF
 227 #ifndef ${rel_source_ident}
 228 #define ${rel_source_ident}
 229 #endif
 230 EOF
 231     $original_dir/patch-header $rel_source_file tmp.h $abs_target_dir/$rel_source_file "$required_list" </dev/null
 232     rm tmp.h
 233   fi
 234 done
 235 exit 0