| 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 |