d450e6af8f
Replace libutil.so with linker script so we don't have to patch each program that tries to link with libutil.so.
205 lines
7.9 KiB
Bash
205 lines
7.9 KiB
Bash
termux_step_setup_toolchain() {
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# We put this after system PATH to avoid picking up toolchain stripped python
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export PATH=$PATH:$TERMUX_STANDALONE_TOOLCHAIN/bin
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export CFLAGS=""
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export LDFLAGS="-L${TERMUX_PREFIX}/lib"
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export AS=${TERMUX_HOST_PLATFORM}-clang
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export CC=$TERMUX_HOST_PLATFORM-clang
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export CXX=$TERMUX_HOST_PLATFORM-clang++
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export CCTERMUX_HOST_PLATFORM=$TERMUX_HOST_PLATFORM$TERMUX_PKG_API_LEVEL
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if [ $TERMUX_ARCH = arm ]; then
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CCTERMUX_HOST_PLATFORM=armv7a-linux-androideabi$TERMUX_PKG_API_LEVEL
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fi
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export AR=$TERMUX_HOST_PLATFORM-ar
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export CPP=${TERMUX_HOST_PLATFORM}-cpp
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export CC_FOR_BUILD=gcc
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export LD=$TERMUX_HOST_PLATFORM-ld
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export OBJDUMP=$TERMUX_HOST_PLATFORM-objdump
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# Setup pkg-config for cross-compiling:
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export PKG_CONFIG=$TERMUX_STANDALONE_TOOLCHAIN/bin/${TERMUX_HOST_PLATFORM}-pkg-config
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export RANLIB=$TERMUX_HOST_PLATFORM-ranlib
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export READELF=$TERMUX_HOST_PLATFORM-readelf
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export STRIP=$TERMUX_HOST_PLATFORM-strip
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# Android 7 started to support DT_RUNPATH (but not DT_RPATH).
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LDFLAGS+=" -Wl,-rpath=$TERMUX_PREFIX/lib -Wl,--enable-new-dtags"
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if [ "$TERMUX_ARCH" = "arm" ]; then
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# https://developer.android.com/ndk/guides/standalone_toolchain.html#abi_compatibility:
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# "We recommend using the -mthumb compiler flag to force the generation of 16-bit Thumb-2 instructions".
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# With r13 of the ndk ruby 2.4.0 segfaults when built on arm with clang without -mthumb.
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CFLAGS+=" -march=armv7-a -mfpu=neon -mfloat-abi=softfp -mthumb"
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LDFLAGS+=" -march=armv7-a"
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elif [ "$TERMUX_ARCH" = "i686" ]; then
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# From $NDK/docs/CPU-ARCH-ABIS.html:
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CFLAGS+=" -march=i686 -msse3 -mstackrealign -mfpmath=sse"
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elif [ "$TERMUX_ARCH" = "aarch64" ]; then
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:
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elif [ "$TERMUX_ARCH" = "x86_64" ]; then
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:
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else
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termux_error_exit "Invalid arch '$TERMUX_ARCH' - support arches are 'arm', 'i686', 'aarch64', 'x86_64'"
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fi
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if [ -n "$TERMUX_DEBUG" ]; then
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CFLAGS+=" -g3 -O1 -fstack-protector --param ssp-buffer-size=4 -D_FORTIFY_SOURCE=2"
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else
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if [ $TERMUX_ARCH = arm ]; then
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CFLAGS+=" -Os"
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else
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CFLAGS+=" -Oz"
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fi
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fi
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export CXXFLAGS="$CFLAGS"
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export CPPFLAGS="-I${TERMUX_PREFIX}/include"
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# If libandroid-support is declared as a dependency, link to it explicitly:
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if [ "$TERMUX_PKG_DEPENDS" != "${TERMUX_PKG_DEPENDS/libandroid-support/}" ]; then
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LDFLAGS+=" -landroid-support"
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fi
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export ac_cv_func_getpwent=no
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export ac_cv_func_getpwnam=no
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export ac_cv_func_getpwuid=no
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export ac_cv_func_sigsetmask=no
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export ac_cv_c_bigendian=no
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if [ ! -d $TERMUX_STANDALONE_TOOLCHAIN ]; then
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# Do not put toolchain in place until we are done with setup, to avoid having a half setup
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# toolchain left in place if something goes wrong (or process is just aborted):
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local _TERMUX_TOOLCHAIN_TMPDIR=${TERMUX_STANDALONE_TOOLCHAIN}-tmp
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rm -Rf $_TERMUX_TOOLCHAIN_TMPDIR
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local _NDK_ARCHNAME=$TERMUX_ARCH
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if [ "$TERMUX_ARCH" = "aarch64" ]; then
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_NDK_ARCHNAME=arm64
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elif [ "$TERMUX_ARCH" = "i686" ]; then
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_NDK_ARCHNAME=x86
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fi
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"$NDK/build/tools/make_standalone_toolchain.py" \
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--api "$TERMUX_PKG_API_LEVEL" \
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--arch $_NDK_ARCHNAME \
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--stl=libc++ \
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--install-dir $_TERMUX_TOOLCHAIN_TMPDIR
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# Remove android-support header wrapping not needed on android-21:
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rm -Rf $_TERMUX_TOOLCHAIN_TMPDIR/sysroot/usr/local
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if [ "$TERMUX_ARCH" = "aarch64" ]; then
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# Use gold by default to work around https://github.com/android-ndk/ndk/issues/148
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cp $_TERMUX_TOOLCHAIN_TMPDIR/bin/aarch64-linux-android-ld.gold \
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$_TERMUX_TOOLCHAIN_TMPDIR/bin/aarch64-linux-android-ld
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cp $_TERMUX_TOOLCHAIN_TMPDIR/aarch64-linux-android/bin/ld.gold \
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$_TERMUX_TOOLCHAIN_TMPDIR/aarch64-linux-android/bin/ld
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fi
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if [ "$TERMUX_ARCH" = "arm" ]; then
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# Linker wrapper script to add '--exclude-libs libgcc.a', see
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# https://github.com/android-ndk/ndk/issues/379
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# https://android-review.googlesource.com/#/c/389852/
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local linker
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for linker in ld ld.bfd ld.gold; do
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local wrap_linker=$_TERMUX_TOOLCHAIN_TMPDIR/$TERMUX_HOST_PLATFORM/bin/$linker
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local real_linker=$_TERMUX_TOOLCHAIN_TMPDIR/$TERMUX_HOST_PLATFORM/bin/$linker.real
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cp $wrap_linker $real_linker
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echo '#!/bin/bash' > $wrap_linker
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echo -n '$(dirname $0)/' >> $wrap_linker
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echo -n $linker.real >> $wrap_linker
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echo ' --exclude-libs libgcc.a "$@"' >> $wrap_linker
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done
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fi
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# Setup the cpp preprocessor:
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cp $_TERMUX_TOOLCHAIN_TMPDIR/bin/$TERMUX_HOST_PLATFORM-clang \
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$_TERMUX_TOOLCHAIN_TMPDIR/bin/$TERMUX_HOST_PLATFORM-cpp
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sed -i 's/clang80/clang80 -E/' \
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$_TERMUX_TOOLCHAIN_TMPDIR/bin/$TERMUX_HOST_PLATFORM-cpp
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cd $_TERMUX_TOOLCHAIN_TMPDIR/sysroot
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for f in $TERMUX_SCRIPTDIR/ndk-patches/*.patch; do
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sed "s%\@TERMUX_PREFIX\@%${TERMUX_PREFIX}%g" "$f" | \
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sed "s%\@TERMUX_HOME\@%${TERMUX_ANDROID_HOME}%g" | \
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patch --silent -p1;
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done
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# elf.h: Taken from glibc since the elf.h in the NDK is lacking.
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# ifaddrs.h: Added in android-24 unified headers, use a inline implementation for now.
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# langinfo.h: Inline implementation of nl_langinfo().
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# iconv.h: Header for iconv, implemented in libandroid-support.
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cp "$TERMUX_SCRIPTDIR"/ndk-patches/{ifaddrs.h,libintl.h,langinfo.h,iconv.h} usr/include
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# Remove <sys/shm.h> from the NDK in favour of that from the libandroid-shmem.
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# Remove <sys/sem.h> as it doesn't work for non-root.
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# Remove <glob.h> as we currently provide it from libandroid-glob.
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# Remove <spawn.h> as it's only for future (later than android-27).
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rm usr/include/sys/{shm.h,sem.h} usr/include/{glob.h,spawn.h}
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sed -i "s/define __ANDROID_API__ __ANDROID_API_FUTURE__/define __ANDROID_API__ $TERMUX_PKG_API_LEVEL/" \
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usr/include/android/api-level.h
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$TERMUX_ELF_CLEANER usr/lib/*/*/*.so
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# zlib is really version 1.2.8 in the Android platform (at least
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# starting from Android 5), not older as the NDK headers claim.
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for file in zconf.h zlib.h; do
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curl -o usr/include/$file \
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https://raw.githubusercontent.com/madler/zlib/v1.2.8/$file
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done
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unset file
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grep -lrw $_TERMUX_TOOLCHAIN_TMPDIR/sysroot/usr/include/c++/v1 -e '<version>' | xargs -n 1 sed -i 's/<version>/\"version\"/g'
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mv $_TERMUX_TOOLCHAIN_TMPDIR $TERMUX_STANDALONE_TOOLCHAIN
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fi
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# On Android 7, libutil functionality is provided by libc.
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# But many programs still may search for libutil.
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if [ ! -f $TERMUX_PREFIX/lib/libutil.so ]; then
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mkdir -p "$TERMUX_PREFIX/lib"
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echo 'INPUT(-lc)' > $TERMUX_PREFIX/lib/libutil.so
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fi
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local _STL_LIBFILE_NAME=libc++_shared.so
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if [ ! -f $TERMUX_PREFIX/lib/libstdc++.so ]; then
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# Setup libc++_shared.so in $PREFIX/lib and libstdc++.so as a link to it,
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# so that other C++ using packages links to it instead of the default android
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# C++ library which does not support exceptions or STL:
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# https://developer.android.com/ndk/guides/cpp-support.html
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# We do however want to avoid installing this, to avoid problems where e.g.
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# libm.so on some i686 devices links against libstdc++.so.
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# The libc++_shared.so library will be packaged in the libc++ package
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# which is part of the base Termux installation.
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mkdir -p "$TERMUX_PREFIX/lib"
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cd "$TERMUX_PREFIX/lib"
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local _STL_LIBFILE=$TERMUX_STANDALONE_TOOLCHAIN/sysroot/usr/lib/${TERMUX_HOST_PLATFORM}/$_STL_LIBFILE_NAME
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cp "$_STL_LIBFILE" .
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$STRIP --strip-unneeded $_STL_LIBFILE_NAME
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$TERMUX_ELF_CLEANER $_STL_LIBFILE_NAME
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if [ $TERMUX_ARCH = "arm" ]; then
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# Use a linker script to get libunwind.a.
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echo 'INPUT(-lunwind -lc++_shared)' > libstdc++.so
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else
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ln -f $_STL_LIBFILE_NAME libstdc++.so
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fi
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fi
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export PKG_CONFIG_LIBDIR="$TERMUX_PKG_CONFIG_LIBDIR"
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# Create a pkg-config wrapper. We use path to host pkg-config to
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# avoid picking up a cross-compiled pkg-config later on.
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local _HOST_PKGCONFIG
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_HOST_PKGCONFIG=$(which pkg-config)
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mkdir -p $TERMUX_STANDALONE_TOOLCHAIN/bin "$PKG_CONFIG_LIBDIR"
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cat > "$PKG_CONFIG" <<-HERE
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#!/bin/sh
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export PKG_CONFIG_DIR=
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export PKG_CONFIG_LIBDIR=$PKG_CONFIG_LIBDIR
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exec $_HOST_PKGCONFIG "\$@"
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HERE
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chmod +x "$PKG_CONFIG"
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}
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