297 lines
		
	
	
		
			9.4 KiB
		
	
	
	
		
			Bash
		
	
	
			
		
		
	
	
			297 lines
		
	
	
		
			9.4 KiB
		
	
	
	
		
			Bash
		
	
	
#!/bin/sh
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# install-reloc - install a program including a relocating wrapper
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# Copyright (C) 2003-2022 Free Software Foundation, Inc.
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# Written by Bruno Haible <bruno@clisp.org>, 2003.
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#
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# This program 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 3 of the License, or
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# (at your option) any later version.
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#
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# This program 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 this program.  If not, see <https://www.gnu.org/licenses/>.
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# Usage 1:
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#   install-reloc -- library_path_var library_path_value prefix destdir \
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#                    compile_command srcdir builddir config_h_dir exeext \
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#                    strip_command \
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#                    install_command... destprog
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# where
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#   - library_path_var is the platform dependent runtime library path variable
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#   - library_path_value is a colon separated list of directories that contain
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#     the libraries at installation time (use this instead of -rpath)
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#   - prefix is the base directory at installation time
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#   - destdir is a string that is prepended to all file names at installation
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#     time; it is already prepended to destprog but not to library_path_value
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#     and prefix
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#   - compile_command is a C compiler compilation and linking command
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#   - srcdir is the directory where to find relocwrapper.c and its dependencies
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#   - builddir is the directory where to find built dependencies (namely,
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#     alloca.h and stdbool.h)
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#   - config_h_dir is the directory where to find config.h
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#   - exeext is platform dependent suffix of executables
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#   - strip_command is the command for stripping executables, or : if no
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#     stripping is desired
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#   - install_command is the install command line, excluding the final destprog
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#   - destprog is the destination program name
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# Usage 2:
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#   env RELOC_LIBRARY_PATH_VAR=library_path_var \
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#       RELOC_LIBRARY_PATH_VALUE=library_path_value \
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#       RELOC_PREFIX=prefix \
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#       RELOC_DESTDIR=destdir \
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#       RELOC_COMPILE_COMMAND=compile_command \
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#       RELOC_SRCDIR=srcdir \
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#       RELOC_BUILDDIR=builddir \
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#       RELOC_CONFIG_H_DIR=config_h_dir \
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#       RELOC_EXEEXT=exeext \
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#       RELOC_STRIP_PROG=strip_command \
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#       RELOC_INSTALL_PROG=install_command... \
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#   install-reloc prog1 ... destprog
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#   where destprog is either the destination program name (when only one program
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#   is specified) or the destination directory for all programs.
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# install-reloc renames destprog to destprog.bin and installs a relocating
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# wrapper in the place of destprog.
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progname=$0
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if test $# -ge 12 && test "x$1" = "x--"; then
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  # Get fixed position arguments.
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  shift
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  library_path_var=$1
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  library_path_value=$2
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  prefix=$3
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  destdir=$4
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  shift
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  shift
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  shift
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  shift
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  compile_command=$1
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  srcdir=$2
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  builddir=$3
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  config_h_dir=$4
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  exeext=$5
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  shift
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  shift
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  shift
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  shift
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  shift
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  strip_prog=$1
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  shift
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  install_prog=$1 # maybe not including the "-c" option
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  shift
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else
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  if test $# -ge 2; then
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    # Get arguments from environment variables.
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    library_path_var=$RELOC_LIBRARY_PATH_VAR
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    library_path_value=$RELOC_LIBRARY_PATH_VALUE
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    prefix=$RELOC_PREFIX
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    destdir=$RELOC_DESTDIR
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    compile_command=$RELOC_COMPILE_COMMAND
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    srcdir=$RELOC_SRCDIR
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    builddir=$RELOC_BUILDDIR
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    config_h_dir=$RELOC_CONFIG_H_DIR
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    exeext=$RELOC_EXEEXT
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    strip_prog=$RELOC_STRIP_PROG
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    install_prog=$RELOC_INSTALL_PROG # including the "-c" option
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  else
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    echo "Usage: $0 -- library_path_var library_path_value prefix destdir" \
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         "compile_command srcdir builddir config_h_dir exeext" \
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         "strip_command" \
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         "install_command... destprog" 1>&2
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    exit 1
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  fi
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fi
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# Get destprog, last argument.
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destprog=
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for arg
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do
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  destprog=$arg
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done
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# Determine whether destprog is a program name or a directory name.
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if test -d "$destprog"; then
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  sed_remove_trailing_slashes='s|//*$||'
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  destprog_directory=`echo "$destprog" | sed -e "$sed_remove_trailing_slashes"`
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  if test -z "$destprog_directory"; then
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    destprog_directory='/'
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  fi
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else
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  destprog_directory=
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fi
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# Prepare for remove trailing $exeext, if present.
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if test -n "$exeext"; then
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  sed_quote='s,\.,\\.,g'
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  sed_remove_exeext='s|'`echo "$exeext" | sed -e "$sed_quote"`'$||'
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fi
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if test -z "$destprog_directory"; then
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  # Remove trailing $exeext, if present.
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  if test -n "$exeext"; then
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    destprog=`echo "$destprog" | sed -e "$sed_remove_exeext"`
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  fi
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fi
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# Outputs a command and runs it.
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func_verbose ()
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{
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  # Make it easy to copy&paste the printed command into a shell in most cases,
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  # by escaping '\\', '"', and '$'. This is not perfect, just good enough.
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  echo "$@" | sed -e 's/\([\\"$]\)/\\\1/g'
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  "$@"
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}
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# Run install_command.
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func_verbose $install_prog "$@" || exit $?
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# Iterate over all destination program names.
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# func_iterate f
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# applies f to each destination program names, after setting destprog.
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sed_basename_of_file='s|^.*/||'
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func_iterate ()
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{
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  if test -n "$destprog_directory"; then
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    prev_arg=
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    for arg
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    do
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      if test -n "prev_arg"; then
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        destprog="$destprog_directory"/`echo "$prev_arg" | sed -e "$sed_basename_of_file"`
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        $1
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      fi
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      prev_arg="$arg"
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    done
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  else
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    $1
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  fi
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}
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# Run strip_command.
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func_strip ()
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{
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  # Remove trailing $exeext, if present.
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  if test -n "$exeext"; then
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    destprog=`echo "$destprog" | sed -e "$sed_remove_exeext"`
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  fi
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  func_verbose "$strip_prog" "$destprog$exeext" || exit $?
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}
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if test "$strip_prog" != ':'; then
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  func_iterate func_strip
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fi
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# If the platform doesn't support LD_LIBRARY_PATH or similar, we cannot build
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# a wrapper.
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test -n "$library_path_var" || exit 0
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libdirs=
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save_IFS="$IFS"; IFS=":"
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for dir in $library_path_value; do
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  IFS="$save_IFS"
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  if test -n "$dir"; then
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    case "$libdirs" in
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      *"\"$dir\""*) ;; # remove duplicate
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      *) libdirs="$libdirs\"$dir\"," ;;
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    esac
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  fi
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done
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IFS="$save_IFS"
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# If there are no library directories to add at runtime, we don't need a
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# wrapper.
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test -n "$libdirs" || exit 0
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# Determine installdir from destprog, removing a leading destdir if present.
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if test -n "$destprog_directory"; then
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  installdir="$destprog_directory"
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else
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  installdir=`echo "$destprog" | sed -e 's,/[^/]*$,,'`
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fi
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if test -n "$destdir"; then
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  sed_quote='s,\([|.\*^$[]\),\\\1,g'
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  sed_remove_destdir='s|^'`echo "$destdir" | sed -e "$sed_quote"`'||'
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  installdir=`echo "$installdir" | sed -e "$sed_remove_destdir"`
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fi
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# Compile and install wrapper.
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func_create_wrapper ()
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{
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  # Remove trailing $exeext, if present.
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  if test -n "$exeext"; then
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    destprog=`echo "$destprog" | sed -e "$sed_remove_exeext"`
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  fi
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  # Compile wrapper.
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  func_verbose $compile_command \
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               -I"$builddir" -I"$srcdir" -I"$config_h_dir" \
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               -DHAVE_CONFIG_H -DIN_RELOCWRAPPER -DNO_XMALLOC \
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               -D"INSTALLPREFIX=\"$prefix\"" -D"INSTALLDIR=\"$installdir\"" \
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               -D"LIBPATHVAR=\"$library_path_var\"" -D"LIBDIRS=$libdirs" \
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               -D"EXEEXT=\"$exeext\"" \
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               "$srcdir"/relocwrapper.c \
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               "$srcdir"/progname.c \
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               "$srcdir"/progreloc.c \
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               "$srcdir"/areadlink.c \
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               "$srcdir"/careadlinkat.c \
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               "$srcdir"/allocator.c \
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               "$srcdir"/readlink.c \
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               "$srcdir"/stat.c \
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               "$srcdir"/canonicalize-lgpl.c \
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               "$srcdir"/malloc/scratch_buffer_dupfree.c \
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               "$srcdir"/malloc/scratch_buffer_grow.c \
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               "$srcdir"/malloc/scratch_buffer_grow_preserve.c \
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               "$srcdir"/malloc/scratch_buffer_set_array_size.c \
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               "$srcdir"/malloc.c \
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               "$srcdir"/realloc.c \
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               "$srcdir"/free.c \
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               "$srcdir"/mempcpy.c \
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               "$srcdir"/rawmemchr.c \
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               "$srcdir"/malloca.c \
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               "$srcdir"/relocatable.c \
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               "$srcdir"/setenv.c \
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               "$srcdir"/c-ctype.c \
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               -o "$destprog.wrapper$exeext"
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  rc=$?
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  # Clean up object files left over in the current directory by the native C
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  # compilers on Solaris, HP-UX, OSF/1, IRIX.
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  rm -f relocwrapper.o \
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        progname.o \
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        progreloc.o \
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        areadlink.o \
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        careadlinkat.o \
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        allocator.o \
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        readlink.o \
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        stat.o \
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        canonicalize-lgpl.o \
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        scratch_buffer_dupfree.o \
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        scratch_buffer_grow.o \
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        scratch_buffer_grow_preserve.o \
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        scratch_buffer_set_array_size.o \
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        malloc.o \
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        realloc.o \
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        free.o \
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        mempcpy.o \
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        rawmemchr.o \
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        malloca.o \
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        relocatable.o \
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        setenv.o \
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        c-ctype.o
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  test $rc = 0 || exit $?
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  # Clean up debugging information left over by the native C compiler on MacOS X.
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  rm -rf "$destprog.wrapper$exeext.dSYM"
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  test $rc = 0 || exit $?
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  # Strip wrapper.
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  test "$strip_prog" = ':' || func_verbose "$strip_prog" "$destprog.wrapper$exeext" || exit $?
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  # Rename $destprog.wrapper -> $destprog -> $destprog.bin.
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  ln -f "$destprog$exeext" "$destprog.bin$exeext" \
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    || { rm -f "$destprog.bin$exeext" \
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         && cp -p "$destprog$exeext" "$destprog.bin$exeext"; } \
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    || exit 1
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  mv "$destprog.wrapper$exeext" "$destprog$exeext" || exit 1
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}
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func_iterate func_create_wrapper
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exit 0
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