mdw@git.distorted.org.uk Git - termux-packages/blob - scripts/build-clang.sh

   1 #!/bin/bash
   2 # Script to build clang with patch to make executables
   3 # position-independent on Android by default.
   4 # Currently unused as the clang binary in the NDK is used
   5 # instead, wrapped with clang-pie-wrapper.
   6
   7 set -e -u
   8
   9 LLVM_VERSION=3.9.1
  10
  11 rm -Rf $HOME/clang-build
  12 mkdir -p $HOME/clang-build
  13 cd $HOME/clang-build
  14
  15 curl -L --fail --retry 2 -o llvm.tar.xz \
  16         http://llvm.org/releases/${LLVM_VERSION}/llvm-${LLVM_VERSION}.src.tar.xz
  17 TERMUX_PKG_SHA256=1fd90354b9cf19232e8f168faf2220e79be555df3aa743242700879e8fd329ee
  18 curl -L --fail --retry 2 -o clang.tar.xz \
  19         http://llvm.org/releases/${LLVM_VERSION}/cfe-${LLVM_VERSION}.src.tar.xz
  20
  21 tar xf llvm.tar.xz
  22 tar xf clang.tar.xz
  23
  24 mv llvm-3.9.1.src src
  25 mv cfe-$LLVM_VERSION.src src/tools/clang
  26 cd src
  27
  28 patch -p1 <<EOF
  29 diff -u -r ../llvm-3.9.0.src/tools/clang/lib/Driver/Tools.cpp ./tools/clang/lib/Driver/Tools.cpp
  30 --- ../llvm-3.9.0.src/tools/clang/lib/Driver/Tools.cpp  2016-08-13 16:43:56.000000000 -0400
  31 +++ ./tools/clang/lib/Driver/Tools.cpp  2016-09-04 06:15:59.703422745 -0400
  32 @@ -9357,9 +9357,12 @@
  33    const llvm::Triple::ArchType Arch = ToolChain.getArch();
  34    const bool isAndroid = ToolChain.getTriple().isAndroid();
  35    const bool IsIAMCU = ToolChain.getTriple().isOSIAMCU();
  36 +  // Termux modification: Enable pie by default for Android and support the
  37 +  // nopie flag.
  38    const bool IsPIE =
  39        !Args.hasArg(options::OPT_shared) && !Args.hasArg(options::OPT_static) &&
  40 -      (Args.hasArg(options::OPT_pie) || ToolChain.isPIEDefault());
  41 +      (Args.hasArg(options::OPT_pie) || ToolChain.isPIEDefault() || isAndroid) &&
  42 +      !Args.hasArg(options::OPT_nopie);
  43    const bool HasCRTBeginEndFiles =
  44        ToolChain.getTriple().hasEnvironment() ||
  45        (ToolChain.getTriple().getVendor() != llvm::Triple::MipsTechnologies);
  46 EOF
  47
  48 mkdir ../build
  49 cd ../build
  50
  51 cmake ../src \
  52         -DCMAKE_BUILD_TYPE=Release
  53 make clang