third_party/binutils/build-one.sh

   1 #!/bin/sh
   2 # Copyright 2014 The Chromium Authors. All rights reserved.
   3 # Use of this source code is governed by a BSD-style license that can be
   4 # found in the LICENSE file.
   5
   6 # Script to build binutils found in /build/binutils-XXXX when inside a chroot.
   7 # Don't call this script yourself, instead use the build-all.sh script.
   8
   9 set -e
  10
  11 if [ -z "$1" ]; then
  12  echo "Directory of binutils not given."
  13  exit 1
  14 fi
  15
  16 cd "$1"
  17
  18 # Ask the dynamic loader to load libstdc++ from the LLVM build directory if
  19 # available. That copy of libstdc++ is required by the gold plugin in the same
  20 # directory. The dynamic loader expects the relative path to start with $ORIGIN,
  21 # but because of escaping issues
  22 # (https://sourceware.org/ml/binutils/2009-05/msg00252.html)
  23 # we embed a dummy path with $ replaced with z and fix it up later.
  24 export LDFLAGS='-Wl,-rpath,zORIGIN/../../../../llvm-build/Release+Asserts/lib'
  25
  26 ./configure --enable-gold=default --enable-threads --enable-plugins \
  27   --prefix=/build/output
  28 make -j8 all
  29 make install
  30
  31 # Save the list of binaries. The sed -i command will leave .orig files behind.
  32 # We don't want them to appear in the for loop below.
  33 bins="$(echo /build/output/*/bin/*)"
  34
  35 # Fix up zORIGIN -> $ORIGIN.
  36 sed -i.orig 's,zORIGIN,$ORIGIN,g' $bins
  37
  38 # Verify that we changed only one byte per executable.
  39 for bin in $bins; do
  40   test "`cmp -l $bin.orig $bin | wc -l`" = 1 || \
  41     (echo "$bin: verification failed" && exit 1)
  42 done
  43
  44 rm /build/output/*/bin/*.orig