#! /usr/bin/env bash
|
# icecc -- A simple distributed compiler system
|
#
|
# Copyright (C) 2004 by the Icecream Authors
|
# GPL
|
|
target_paths=
|
target_aliases=
|
|
# Always prints, optionally to a log file
|
print_output ()
|
{
|
if test -n "$log_path"; then
|
echo "$@" | tee -a "$log_path"
|
else
|
echo "$@"
|
fi
|
}
|
|
# Only prints if the debug flag is specified
|
print_debug ()
|
{
|
if test -n "$debug"; then
|
print_output "$@"
|
fi
|
}
|
|
is_dynamic_elf ()
|
{
|
# Is the file an dynamically linked ELF executable?
|
(file -L "$1" | grep 'ELF' > /dev/null 2>&1) && (! file -L "$1" | grep 'static' > /dev/null 2>&1)
|
}
|
|
fix_rpath ()
|
{
|
# Patches the RPATH for a file. When the program is executed in the chroot
|
# be iceccd, /proc is not mounted. As such, $ORIGIN can't be resolved. To
|
# work around this, replace all instances of $ORIGIN in RPATH with the
|
# known chroot path to the executables directory
|
local path="$1"
|
local origin="$2"
|
if ! is_dynamic_elf "$path"; then
|
return
|
fi
|
local old_rpath="`$PATCHELF --print-rpath "$path"`"
|
local new_rpath="`echo "$old_rpath" | \
|
sed 's/.*\[\(.*\)\]/\1/g' | \
|
sed "s,\\\$ORIGIN,/$origin,g"`"
|
|
if test -n "$new_rpath"; then
|
print_debug "Converting RPATH '$old_rpath' -> '$new_rpath'"
|
$PATCHELF --set-rpath "$new_rpath" "$path"
|
fi
|
}
|
|
add_path ()
|
{
|
case " $target_paths " in
|
*" $1 "*)
|
return 1
|
;;
|
*)
|
target_paths="$target_paths $1"
|
return 0
|
;;
|
esac
|
}
|
|
add_alias ()
|
{
|
if test "$1" != "$2"; then
|
local alias="$1=$2"
|
case " $target_aliases " in
|
*" $alias "*)
|
;;
|
*)
|
print_debug "Adding alias '$2' -> '$1'"
|
target_aliases="$target_aliases $alias"
|
;;
|
esac
|
fi
|
}
|
|
normalize_path ()
|
{
|
# Normalizes the path to a file or directory, removing all "." and ".."
|
# entries. Use pwd -L to explicitly prevent symlink expansion
|
local path=$1
|
if test -f "$path"; then
|
pushd $(dirname $path) > /dev/null 2>&1
|
dir_path=$(pwd -L)
|
path=$dir_path/$(basename $path)
|
popd > /dev/null 2>&1
|
elif test -d "$path"; then
|
pushd $path > /dev/null 2>&1
|
path=$(pwd -L)
|
popd > /dev/null 2>&1
|
fi
|
echo $path
|
}
|
|
add_file_common()
|
{
|
local p="$1"
|
local path="$2"
|
local alias="$3"
|
|
add_alias "$path" "$p"
|
if test -n "$alias"; then
|
add_alias "$path" "$alias"
|
fi
|
|
add_path "$path" || return 1
|
print_debug "Adding file '$path'"
|
|
return 0
|
}
|
|
add_deps()
|
{
|
local path="$1"
|
local interp="$2"
|
|
if test -n "$interp" && test -x "$interp"; then
|
# Use the dynamic loaders --list argument to list the
|
# dependencies. The program may have a different program
|
# interpreter (typical when using uninative tarballs), which is
|
# why we can't just call ldd.
|
deps="`$interp --list "$path"`"
|
else
|
deps="`ldd "$path"`"
|
fi
|
|
print_debug "Dependencies are:"
|
print_debug "$deps"
|
if test -n "$deps"; then
|
for lib in $deps; do
|
# ldd now outputs ld as /lib/ld-linux.so.xx on current nptl
|
# based glibc this regexp parse the outputs like:
|
# ldd /usr/bin/gcc
|
# linux-gate.so.1 => (0xffffe000)
|
# libc.so.6 => /lib/tls/libc.so.6 (0xb7e81000)
|
# /lib/ld-linux.so.2 (0xb7fe8000)
|
# covering both situations ( with => and without )
|
lib="`echo "$lib" | sed -n 's,^[^/]*\(/[^ ]*\).*,\1,p'`"
|
|
test -f "$lib" || continue
|
# Check whether the same library also exists in the parent
|
# directory, and prefer that on the assumption that it is a
|
# more generic one.
|
local baselib=`echo "$lib" | sed 's,\(/[^/]*\)/.*\(/[^/]*\)$,\1\2,'`
|
test -f "$baselib" && lib=$baselib
|
add_dependency "$lib" "$interp"
|
done
|
fi
|
}
|
|
add_dependency()
|
{
|
local p=`normalize_path $1`
|
# readlink is required for Yocto, so we can use it
|
local path=`readlink -f "$p"`
|
local interp="$2"
|
|
add_file_common "$p" "$path" || return
|
|
if test -x "$path" && is_dynamic_elf "$path"; then
|
add_deps "$path" "$interp"
|
fi
|
}
|
|
add_file ()
|
{
|
local p=`normalize_path $1`
|
# readlink is required for Yocto, so we can use it
|
local path=`readlink -f "$p"`
|
|
add_file_common "$p" "$path" "$2" || return
|
|
if test -x "$path" && is_dynamic_elf "$path"; then
|
# Request the program interpeter (dynamic loader)
|
interp=`readelf -W -l "$path" | grep "Requesting program interpreter:" | sed "s/\s*\[Requesting program interpreter:\s*\(.*\)\]/\1/g"`
|
print_debug "Interpreter is '$interp'"
|
|
add_deps "$path" "$interp"
|
fi
|
}
|
|
while test -n "$1"; do
|
case "$1" in
|
--respect-path)
|
# Ignore for backward compatability
|
;;
|
--debug)
|
debug=1
|
;;
|
--log)
|
do_log=1
|
;;
|
--extra=*)
|
extra_tools="$extra_tools ${1#--extra=}"
|
;;
|
*)
|
break
|
;;
|
esac
|
shift
|
done
|
|
added_gcc=$1
|
shift
|
added_gxx=$1
|
shift
|
added_as=$1
|
shift
|
archive_name=$1
|
|
if test -n "$do_log"; then
|
log_path="$archive_name.log"
|
rm -f "$log_path"
|
fi
|
|
if test -z "$PATCHELF"; then
|
PATCHELF=`which patchelf 2> /dev/null`
|
fi
|
if test -z "$PATCHELF"; then
|
PATCHELF=`which patchelf-uninative 2> /dev/null`
|
fi
|
if test -z "$PATCHELF"; then
|
print_output "patchelf is required"
|
exit 1
|
fi
|
|
if test -z "$added_gcc" || test -z "$added_gxx" ; then
|
print_output "usage: $0 <gcc_path> <g++_path>"
|
exit 1
|
fi
|
|
if ! test -x "$added_gcc" ; then
|
print_output "'$added_gcc' is not executable."
|
exit 1
|
fi
|
|
if ! test -x "$added_gxx" ; then
|
print_output "'$added_gcc' is not executable."
|
exit 1
|
fi
|
|
|
|
add_file $added_gcc /usr/bin/gcc
|
add_file $added_gxx /usr/bin/g++
|
|
if test -z "$added_as" ; then
|
add_file /usr/bin/as /usr/bin/as
|
else
|
if ! test -x "$added_as" ; then
|
print_output "'$added_as' is not executable."
|
exit 1
|
fi
|
|
add_file $added_as /usr/bin/as
|
fi
|
|
add_file `$added_gcc -print-prog-name=cc1` /usr/bin/cc1
|
add_file `$added_gxx -print-prog-name=cc1plus` /usr/bin/cc1plus
|
specfile=`$added_gcc -print-file-name=specs`
|
if test -n "$specfile" && test -e "$specfile"; then
|
add_file "$specfile"
|
fi
|
|
ltofile=`$added_gcc -print-prog-name=lto1`
|
pluginfile=`normalize_path "${ltofile%lto1}liblto_plugin.so"`
|
if test -r "$pluginfile"
|
then
|
add_file $pluginfile ${pluginfile#*usr}
|
add_file $pluginfile /usr${pluginfile#*usr}
|
fi
|
|
# for testing the environment is usable at all
|
if test -x /bin/true; then
|
add_file /bin/true
|
elif test -x /usr/bin/true; then
|
add_file /usr/bin/true /bin/true
|
else
|
print_output "'true' not found"
|
exit 1
|
fi
|
|
for extra in $extra_tools; do
|
if test -x "$extra"; then
|
add_file "$extra"
|
else
|
print_output "'$extra' not found"
|
exit 1
|
fi
|
done
|
|
link_rel ()
|
{
|
local target="$1"
|
local name="$2"
|
local base="$3"
|
|
local prefix=`dirname $name`
|
|
prefix=`echo $prefix | sed 's,[^/]\+,..,g' | sed 's,^/*,,g'`
|
|
ln -s $prefix/$target $base/$name
|
}
|
|
tempdir=`mktemp -d /tmp/iceccenvXXXXXX`
|
target_files=
|
for path in $target_paths; do
|
mkdir -p $tempdir/`dirname $path`
|
cp -pH $path $tempdir/$path
|
|
if test -f $tempdir/$path -a -x $tempdir/$path; then
|
strip -s $tempdir/$path 2>/dev/null
|
fi
|
|
fix_rpath $tempdir/$path `dirname $path`
|
target_files="$target_files $path"
|
done
|
|
for i in $target_aliases; do
|
target=`echo $i | cut -d= -f1`
|
link_name=`echo $i | cut -d= -f2`
|
|
mkdir -p $tempdir/`dirname $link_name`
|
# Relative links are used because the files are checked for being
|
# executable outside the chroot
|
link_rel $target $link_name $tempdir
|
|
link_name=`echo $link_name | cut -b2-`
|
target_files="$target_files $link_name"
|
done
|
|
#sort the files
|
target_files=`for i in $target_files; do echo $i; done | sort`
|
|
#test if an archive name was supplied
|
#if not use the md5 of all files as the archive name
|
if test -z "$archive_name"; then
|
md5sum=NONE
|
for file in /usr/bin/md5sum /bin/md5 /usr/bin/md5; do
|
if test -x $file; then
|
md5sum=$file
|
break
|
fi
|
done
|
|
#calculate md5 and use it as the archive name
|
archive_name=`for i in $target_files; do test -f $tempdir/$i && $md5sum $tempdir/$i; done | sed -e 's/ .*$//' | $md5sum | sed -e 's/ .*$//'`.tar.gz || {
|
print_output "Couldn't compute MD5 sum."
|
exit 2
|
}
|
mydir=`pwd`
|
else
|
mydir="`dirname "$archive_name"`"
|
|
#check if we have a full path or only a filename
|
if test "$mydir" = "." ; then
|
mydir=`pwd`
|
else
|
mydir=""
|
fi
|
fi
|
|
print_output "creating $archive_name"
|
|
cd $tempdir
|
# Add everything in the temp directory. Tar doesn't like to be given files with
|
# ".." in them, which frequently happens in $target_files, and will strip off
|
# the path prefix past the offending "..". This makes the archive generate
|
# incorrectly
|
tar -czf "$mydir/$archive_name" . || {
|
print_output "Couldn't create archive"
|
exit 3
|
}
|
cd ..
|
rm -rf $tempdir
|
