build-aux/install-reloc

   1 #!/bin/sh
   2 # install-reloc - install a program including a relocating wrapper
   3 # Copyright (C) 2003-2020 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   # Make it easy to copy&paste the printed command into a shell in most cases,
 142   # by escaping '\\', '"', and '$'. This is not perfect, just good enough.
 143   echo "$@" | sed -e 's/\([\\"$]\)/\\\1/g'
 144   "$@"
 145 }
 146
 147 # Run install_command.
 148 func_verbose $install_prog "$@" || exit $?
 149
 150 # Iterate over all destination program names.
 151 # func_iterate f
 152 # applies f to each destination program names, after setting destprog.
 153 sed_basename_of_file='s|^.*/||'
 154 func_iterate ()
 155 {
 156   if test -n "$destprog_directory"; then
 157     prev_arg=
 158     for arg
 159     do
 160       if test -n "prev_arg"; then
 161         destprog="$destprog_directory"/`echo "$prev_arg" | sed -e "$sed_basename_of_file"`
 162         $1
 163       fi
 164       prev_arg="$arg"
 165     done
 166   else
 167     $1
 168   fi
 169 }
 170
 171 # Run strip_command.
 172 func_strip ()
 173 {
 174   # Remove trailing $exeext, if present.
 175   if test -n "$exeext"; then
 176     destprog=`echo "$destprog" | sed -e "$sed_remove_exeext"`
 177   fi
 178   func_verbose "$strip_prog" "$destprog$exeext" || exit $?
 179 }
 180 if test "$strip_prog" != ':'; then
 181   func_iterate func_strip
 182 fi
 183
 184 # If the platform doesn't support LD_LIBRARY_PATH or similar, we cannot build
 185 # a wrapper.
 186 test -n "$library_path_var" || exit 0
 187
 188 libdirs=
 189 save_IFS="$IFS"; IFS=":"
 190 for dir in $library_path_value; do
 191   IFS="$save_IFS"
 192   if test -n "$dir"; then
 193     case "$libdirs" in
 194       *"\"$dir\""*) ;; # remove duplicate
 195       *) libdirs="$libdirs\"$dir\"," ;;
 196     esac
 197   fi
 198 done
 199 IFS="$save_IFS"
 200 # If there are no library directories to add at runtime, we don't need a
 201 # wrapper.
 202 test -n "$libdirs" || exit 0
 203
 204 # Determine installdir from destprog, removing a leading destdir if present.
 205 if test -n "$destprog_directory"; then
 206   installdir="$destprog_directory"
 207 else
 208   installdir=`echo "$destprog" | sed -e 's,/[^/]*$,,'`
 209 fi
 210 if test -n "$destdir"; then
 211   sed_quote='s,\([|.\*^$[]\),\\\1,g'
 212   sed_remove_destdir='s|^'`echo "$destdir" | sed -e "$sed_quote"`'||'
 213   installdir=`echo "$installdir" | sed -e "$sed_remove_destdir"`
 214 fi
 215
 216 # Compile and install wrapper.
 217 func_create_wrapper ()
 218 {
 219   # Remove trailing $exeext, if present.
 220   if test -n "$exeext"; then
 221     destprog=`echo "$destprog" | sed -e "$sed_remove_exeext"`
 222   fi
 223
 224   # Compile wrapper.
 225   func_verbose $compile_command \
 226                -I"$builddir" -I"$srcdir" -I"$config_h_dir" \
 227                -DHAVE_CONFIG_H -DIN_RELOCWRAPPER -DNO_XMALLOC \
 228                -D"INSTALLPREFIX=\"$prefix\"" -D"INSTALLDIR=\"$installdir\"" \
 229                -D"LIBPATHVAR=\"$library_path_var\"" -D"LIBDIRS=$libdirs" \
 230                -D"EXEEXT=\"$exeext\"" \
 231                "$srcdir"/relocwrapper.c \
 232                "$srcdir"/progname.c \
 233                "$srcdir"/progreloc.c \
 234                "$srcdir"/areadlink.c \
 235                "$srcdir"/careadlinkat.c \
 236                "$srcdir"/allocator.c \
 237                "$srcdir"/readlink.c \
 238                "$srcdir"/stat.c \
 239                "$srcdir"/canonicalize-lgpl.c \
 240                "$srcdir"/malloca.c \
 241                "$srcdir"/lstat.c \
 242                "$srcdir"/relocatable.c \
 243                "$srcdir"/setenv.c \
 244                "$srcdir"/c-ctype.c \
 245                -o "$destprog.wrapper$exeext"
 246   rc=$?
 247   # Clean up object files left over in the current directory by the native C
 248   # compilers on Solaris, HP-UX, OSF/1, IRIX.
 249   rm -f relocwrapper.o \
 250         progname.o \
 251         progreloc.o \
 252         areadlink.o \
 253         careadlinkat.o \
 254         allocator.o \
 255         readlink.o \
 256         stat.o \
 257         canonicalize-lgpl.o \
 258         malloca.o \
 259         lstat.o \
 260         relocatable.o \
 261         setenv.o \
 262         c-ctype.o
 263   test $rc = 0 || exit $?
 264   # Clean up debugging information left over by the native C compiler on MacOS X.
 265   rm -rf "$destprog.wrapper$exeext.dSYM"
 266   test $rc = 0 || exit $?
 267
 268   # Strip wrapper.
 269   test "$strip_prog" = ':' || func_verbose "$strip_prog" "$destprog.wrapper$exeext" || exit $?
 270
 271   # Rename $destprog.wrapper -> $destprog -> $destprog.bin.
 272   ln -f "$destprog$exeext" "$destprog.bin$exeext" \
 273     || { rm -f "$destprog.bin$exeext" \
 274          && cp -p "$destprog$exeext" "$destprog.bin$exeext"; } \
 275     || exit 1
 276   mv "$destprog.wrapper$exeext" "$destprog$exeext" || exit 1
 277 }
 278 func_iterate func_create_wrapper
 279
 280 exit 0