[tor-commits] [tor-browser-bundle/hardened-builds] Bug 17034: Use our built binutils and GCC for building tor

[gk@xxxxxxxxxxxxxx]

commit 74bbd039cfb80ad4f9ea9147d8637209076ae84b
Author: Georg Koppen <gk@xxxxxxxxxxxxxx>
Date:   Tue Feb 21 11:24:38 2017 +0000

    Bug 17034: Use our built binutils and GCC for building tor
---
 gitian/descriptors/linux/gitian-tor.yml | 38 +++++++++++++++++++++++++--------
 1 file changed, 29 insertions(+), 9 deletions(-)

diff --git a/gitian/descriptors/linux/gitian-tor.yml b/gitian/descriptors/linux/gitian-tor.yml
index fa0aead..3b3427b 100644
--- a/gitian/descriptors/linux/gitian-tor.yml
+++ b/gitian/descriptors/linux/gitian-tor.yml
@@ -32,6 +32,10 @@ script: |
   export LC_ALL=C
   umask 0022
 
+  mkdir -p $INSTDIR/Data/Tor/
+  mkdir -p $INSTDIR/Tor/
+  mkdir -p $INSTDIR/Debug/Tor/
+
   # Config options for hardening-wrapper
   export DEB_BUILD_HARDENING=1
   export DEB_BUILD_HARDENING_STACKPROTECTOR=1
@@ -39,13 +43,32 @@ script: |
   export DEB_BUILD_HARDENING_FORMAT=1
   export DEB_BUILD_HARDENING_PIE=1
 
-  mkdir -p $INSTDIR/Data/Tor/
-  mkdir -p $INSTDIR/Tor/
-  mkdir -p $INSTDIR/Debug/Tor/
+  # Preparing Binutils and GCC for tor
+  unzip -d $INSTDIR binutils-linux$GBUILD_BITS-utils.zip
+  # Make sure gold is used with the hardening wrapper for full RELRO, see
+  # #13031.
+  cd $INSTDIR/binutils/bin
+  rm ld
+  cp /usr/bin/hardened-ld ./
+  mv ld.gold ld.gold.real
+  ln -sf hardened-ld ld.gold
+  ln -sf ld.gold ld
+  cd ~/build
+  unzip -d $INSTDIR gcc-linux$GBUILD_BITS-utils.zip
+  # Make sure we use the hardening wrapper when compiling tor.
+  cd $INSTDIR/gcc/bin
+  cp /usr/bin/hardened-cc ./
+  mv gcc gcc.real
+  mv c++ c++.real
+  ln -sf hardened-cc gcc
+  ln -sf hardened-cc c++
+  cd ~/build
+  export PATH=$INSTDIR/gcc/bin:$INSTDIR/binutils/bin:$PATH
+  # Make sure our GCC gets properly used.
+  export LD_LIBRARY_PATH=$INSTDIR/gcc/lib64
+
   unzip -d $INSTDIR openssl-linux$GBUILD_BITS-utils.zip
   unzip -d $INSTDIR libevent-linux$GBUILD_BITS-utils.zip
-  unzip -d $INSTDIR gcc-linux$GBUILD_BITS-utils.zip
-  unzip -d $INSTDIR binutils-linux$GBUILD_BITS-utils.zip
   cp $INSTDIR/openssl/lib/libssl.so.1.0.0 $INSTDIR/Tor/
   cp $INSTDIR/openssl/lib/libcrypto.so.1.0.0 $INSTDIR/Tor/
   cp $INSTDIR/libevent/lib/libevent-2.0.so.5 $INSTDIR/Tor/
@@ -61,14 +84,11 @@ script: |
 
   chmod 700 $INSTDIR/Tor/*so*
   # This is needed to make RPATH unavailable. See bug 9150.
-  export LD_LIBRARY_PATH="$INSTDIR/Tor"
-  export PATH=$INSTDIR/gcc/bin:$INSTDIR/binutils/bin:$PATH
+  export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:$INSTDIR/Tor/"
 
   # Building tor
   cd tor
   git update-index --refresh -q
-  mkdir -p $OUTDIR/src
-  #git archive HEAD | tar -x -C $OUTDIR/src
   ./autogen.sh
   find -type f -print0 | xargs -0 touch --date="$REFERENCE_DATETIME"
   ./configure --enable-expensive-hardening --disable-asciidoc --prefix=$INSTDIR --with-openssl-dir=$INSTDIR/openssl --with-libevent-dir=$INSTDIR/libevent

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