build-aux/install-reloc

   1 #!/bin/sh
   2 # install-reloc - install a program including a relocating wrapper
   3 # Copyright (C) 2003-2018 Free Software Foundation, Inc.
   4 # Written by Bruno Haible <bruno@clisp.org>, 2003.
   5 #
   6 # This program is free software: you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 3 of the License, or
   9 # (at your option) any later version.
  10 #
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
  18
  19 # Usage 1:
  20 #   install-reloc -- library_path_var library_path_value prefix destdir \
  21 #                    compile_command srcdir builddir config_h_dir exeext \
  22 #                    strip_command \
  23 #                    install_command... destprog
  24 # where
  25 #   - library_path_var is the platform dependent runtime library path variable
  26 #   - library_path_value is a colon separated list of directories that contain
  27 #     the libraries at installation time (use this instead of -rpath)
  28 #   - prefix is the base directory at installation time
  29 #   - destdir is a string that is prepended to all file names at installation
  30 #     time; it is already prepended to destprog but not to library_path_value
  31 #     and prefix
  32 #   - compile_command is a C compiler compilation and linking command
  33 #   - srcdir is the directory where to find relocwrapper.c and its dependencies
  34 #   - builddir is the directory where to find built dependencies (namely,
  35 #     alloca.h and stdbool.h)
  36 #   - config_h_dir is the directory where to find config.h
  37 #   - exeext is platform dependent suffix of executables
  38 #   - strip_command is the command for stripping executables, or : if no
  39 #     stripping is desired
  40 #   - install_command is the install command line, excluding the final destprog
  41 #   - destprog is the destination program name
  42 # Usage 2:
  43 #   env RELOC_LIBRARY_PATH_VAR=library_path_var \
  44 #       RELOC_LIBRARY_PATH_VALUE=library_path_value \
  45 #       RELOC_PREFIX=prefix \
  46 #       RELOC_DESTDIR=destdir \
  47 #       RELOC_COMPILE_COMMAND=compile_command \
  48 #       RELOC_SRCDIR=srcdir \
  49 #       RELOC_BUILDDIR=builddir \
  50 #       RELOC_CONFIG_H_DIR=config_h_dir \
  51 #       RELOC_EXEEXT=exeext \
  52 #       RELOC_STRIP_PROG=strip_command \
  53 #       RELOC_INSTALL_PROG=install_command... \
  54 #   install-reloc prog1 ... destprog
  55 #   where destprog is either the destination program name (when only one program
  56 #   is specified) or the destination directory for all programs.
  57 # install-reloc renames destprog to destprog.bin and installs a relocating
  58 # wrapper in the place of destprog.
  59
  60 progname=$0
  61
  62 if test $# -ge 12 && test "x$1" = "x--"; then
  63   # Get fixed position arguments.
  64   shift
  65   library_path_var=$1
  66   library_path_value=$2
  67   prefix=$3
  68   destdir=$4
  69   shift
  70   shift
  71   shift
  72   shift
  73   compile_command=$1
  74   srcdir=$2
  75   builddir=$3
  76   config_h_dir=$4
  77   exeext=$5
  78   shift
  79   shift
  80   shift
  81   shift
  82   shift
  83   strip_prog=$1
  84   shift
  85   install_prog=$1 # maybe not including the "-c" option
  86   shift
  87 else
  88   if test $# -ge 2; then
  89     # Get arguments from environment variables.
  90     library_path_var=$RELOC_LIBRARY_PATH_VAR
  91     library_path_value=$RELOC_LIBRARY_PATH_VALUE
  92     prefix=$RELOC_PREFIX
  93     destdir=$RELOC_DESTDIR
  94     compile_command=$RELOC_COMPILE_COMMAND
  95     srcdir=$RELOC_SRCDIR
  96     builddir=$RELOC_BUILDDIR
  97     config_h_dir=$RELOC_CONFIG_H_DIR
  98     exeext=$RELOC_EXEEXT
  99     strip_prog=$RELOC_STRIP_PROG
 100     install_prog=$RELOC_INSTALL_PROG # including the "-c" option
 101   else
 102     echo "Usage: $0 -- library_path_var library_path_value prefix destdir" \
 103          "compile_command srcdir builddir config_h_dir exeext" \
 104          "strip_command" \
 105          "install_command... destprog" 1>&2
 106     exit 1
 107   fi
 108 fi
 109
 110 # Get destprog, last argument.
 111 destprog=
 112 for arg
 113 do
 114   destprog=$arg
 115 done
 116 # Determine whether destprog is a program name or a directory name.
 117 if test -d "$destprog"; then
 118   sed_remove_trailing_slashes='s|//*$||'
 119   destprog_directory=`echo "$destprog" | sed -e "$sed_remove_trailing_slashes"`
 120   if test -z "$destprog_directory"; then
 121     destprog_directory='/'
 122   fi
 123 else
 124   destprog_directory=
 125 fi
 126 # Prepare for remove trailing $exeext, if present.
 127 if test -n "$exeext"; then
 128   sed_quote='s,\.,\\.,g'
 129   sed_remove_exeext='s|'`echo "$exeext" | sed -e "$sed_quote"`'$||'
 130 fi
 131 if test -z "$destprog_directory"; then
 132   # Remove trailing $exeext, if present.
 133   if test -n "$exeext"; then
 134     destprog=`echo "$destprog" | sed -e "$sed_remove_exeext"`
 135   fi
 136 fi
 137
 138 # Outputs a command and runs it.
 139 func_verbose ()
 140 {
 141   echo "$@"
 142   "$@"
 143 }
 144
 145 # Run install_command.
 146 func_verbose $install_prog "$@" || exit $?
 147
 148 # Iterate over all destination program names.
 149 # func_iterate f
 150 # applies f to each destination program names, after setting destprog.
 151 sed_basename_of_file='s|^.*/||'
 152 func_iterate ()
 153 {
 154   if test -n "$destprog_directory"; then
 155     prev_arg=
 156     for arg
 157     do
 158       if test -n "prev_arg"; then
 159         destprog="$destprog_directory"/`echo "$prev_arg" | sed -e "$sed_basename_of_file"`
 160         $1
 161       fi
 162       prev_arg="$arg"
 163     done
 164   else
 165     $1
 166   fi
 167 }
 168
 169 # Run strip_command.
 170 func_strip ()
 171 {
 172   # Remove trailing $exeext, if present.
 173   if test -n "$exeext"; then
 174     destprog=`echo "$destprog" | sed -e "$sed_remove_exeext"`
 175   fi
 176   func_verbose "$strip_prog" "$destprog$exeext" || exit $?
 177 }
 178 if test "$strip_prog" != ':'; then
 179   func_iterate func_strip
 180 fi
 181
 182 # If the platform doesn't support LD_LIBRARY_PATH or similar, we cannot build
 183 # a wrapper.
 184 test -n "$library_path_var" || exit 0
 185
 186 libdirs=
 187 save_IFS="$IFS"; IFS=":"
 188 for dir in $library_path_value; do
 189   IFS="$save_IFS"
 190   if test -n "$dir"; then
 191     case "$libdirs" in
 192       *"\"$dir\""*) ;; # remove duplicate
 193       *) libdirs="$libdirs\"$dir\"," ;;
 194     esac
 195   fi
 196 done
 197 IFS="$save_IFS"
 198 # If there are no library directories to add at runtime, we don't need a
 199 # wrapper.
 200 test -n "$libdirs" || exit 0
 201
 202 # Determine installdir from destprog, removing a leading destdir if present.
 203 if test -n "$destprog_directory"; then
 204   installdir="$destprog_directory"
 205 else
 206   installdir=`echo "$destprog" | sed -e 's,/[^/]*$,,'`
 207 fi
 208 if test -n "$destdir"; then
 209   sed_quote='s,\([|.\*^$[]\),\\\1,g'
 210   sed_remove_destdir='s|^'`echo "$destdir" | sed -e "$sed_quote"`'||'
 211   installdir=`echo "$installdir" | sed -e "$sed_remove_destdir"`
 212 fi
 213
 214 # Compile and install wrapper.
 215 func_create_wrapper ()
 216 {
 217   # Remove trailing $exeext, if present.
 218   if test -n "$exeext"; then
 219     destprog=`echo "$destprog" | sed -e "$sed_remove_exeext"`
 220   fi
 221
 222   # Compile wrapper.
 223   func_verbose $compile_command \
 224                -I"$builddir" -I"$srcdir" -I"$config_h_dir" \
 225                -DHAVE_CONFIG_H -DIN_RELOCWRAPPER -DNO_XMALLOC \
 226                -D"INSTALLPREFIX=\"$prefix\"" -D"INSTALLDIR=\"$installdir\"" \
 227                -D"LIBPATHVAR=\"$library_path_var\"" -D"LIBDIRS=$libdirs" \
 228                -D"EXEEXT=\"$exeext\"" \
 229                "$srcdir"/relocwrapper.c \
 230                "$srcdir"/progname.c \
 231                "$srcdir"/progreloc.c \
 232                "$srcdir"/areadlink.c \
 233                "$srcdir"/careadlinkat.c \
 234                "$srcdir"/allocator.c \
 235                "$srcdir"/readlink.c \
 236                "$srcdir"/stat.c \
 237                "$srcdir"/canonicalize-lgpl.c \
 238                "$srcdir"/malloca.c \
 239                "$srcdir"/lstat.c \
 240                "$srcdir"/relocatable.c \
 241                "$srcdir"/setenv.c \
 242                "$srcdir"/c-ctype.c \
 243                -o "$destprog.wrapper$exeext"
 244   rc=$?
 245   # Clean up object files left over in the current directory by the native C
 246   # compilers on Solaris, HP-UX, OSF/1, IRIX.
 247   rm -f relocwrapper.o \
 248         progname.o \
 249         progreloc.o \
 250         areadlink.o \
 251         careadlinkat.o \
 252         allocator.o \
 253         readlink.o \
 254         stat.o \
 255         canonicalize-lgpl.o \
 256         malloca.o \
 257         lstat.o \
 258         relocatable.o \
 259         setenv.o \
 260         c-ctype.o
 261   test $rc = 0 || exit $?
 262   # Clean up debugging information left over by the native C compiler on MacOS X.
 263   rm -rf "$destprog.wrapper$exeext.dSYM"
 264   test $rc = 0 || exit $?
 265
 266   # Strip wrapper.
 267   test "$strip_prog" = ':' || func_verbose "$strip_prog" "$destprog.wrapper$exeext" || exit $?
 268
 269   # Rename $destprog.wrapper -> $destprog -> $destprog.bin.
 270   ln -f "$destprog$exeext" "$destprog.bin$exeext" \
 271     || { rm -f "$destprog.bin$exeext" \
 272          && cp -p "$destprog$exeext" "$destprog.bin$exeext"; } \
 273     || exit 1
 274   mv "$destprog.wrapper$exeext" "$destprog$exeext" || exit 1
 275 }
 276 func_iterate func_create_wrapper
 277
 278 exit 0