958f597a6c
Instead of running compilers directly, let them go through the native ccache binary. Note that it will still use the foreign arches cache dir because the native cache dir would be at /native/home/pmos/.ccache. Use execve instead of setenv and execv, because that didn't work with LD_LIBRARY_PATH (ccache was complaining that it couldn't load zlib). Enable -Werror, because we are maintaining this program and it helps us catching bugs early.
66 lines
2 KiB
Text
66 lines
2 KiB
Text
# Wrapper for the "crossdirect" compilation method.
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# pmbootstrap mounts the native chroot in the foreign arch (e.g. armhf) chroot
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# as /native. This package gets installed into the native chroot, and creates
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# wrappers like:
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#
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# /native/usr/lib/crossdirect/armhf/gcc
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# -> /native/usr/bin/armv6-alpine-linux-muslgnueabihf-gcc
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#
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# When building packages in the armhf chroot, PATH will get prepended with
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# "/native/usr/lib/crossdirect/armhf". The end game is of course invoking the
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# cross compiler from the native chroot, running at native speed, whenever
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# calling the compiler from the foreign arch chroot. See crossdirect.c for
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# implementation details (llvm, fakeroot, rpath).
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pkgname=crossdirect
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pkgver=2
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pkgrel=0
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pkgdesc="Wrappers to launch native cross compilers in foreign chroots"
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url="https://postmarketOS.org"
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arch="all"
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license="MIT"
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options=""
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source="crossdirect.c"
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build() {
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cd "$srcdir"
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# Architectures and binaries
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_archs="x86_64 armhf armv7 aarch64"
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for _arch in $_archs; do
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[ "$_arch" == "$CARCH" ] && continue
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_hostspec="$(arch_to_hostspec $_arch)"
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# Build with -Werror, because we maintain this short program. (If
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# upstream is elsewhere, having -Werror is usually not desired.)
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$CC -o "crossdirect-$_arch" \
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-static \
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-Werror \
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-DHOSTSPEC="\"$_hostspec\"" \
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crossdirect.c
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done
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}
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package() {
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# Architectures and binaries
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_archs="x86_64 armhf armv7 aarch64"
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_bins="c++ cc cpp g++ gcc clang clang++"
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# Iterate over architectures
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for _arch in $_archs; do
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[ "$_arch" == "$CARCH" ] && continue
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# Put arch-specific crossdirect wrapper in arch-specific bin folder
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_bindir="$pkgdir/usr/lib/crossdirect/$_arch"
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_hostspec="$(arch_to_hostspec $_arch)"
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mkdir -p "$_bindir"
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cd "$_bindir"
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cp "$srcdir/crossdirect-$_arch" "./"
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# Create compiler symlinks
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for _bin in $_bins; do
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ln -s "crossdirect-$_arch" "$_bin"
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ln -s "crossdirect-$_arch" "$_hostspec-$_bin"
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done
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done
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}
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sha512sums="6a94a2e0842c95b8ca862b71a7b54f280d0fe9da40fe40691628ef6089a995159c1b53513fb006589af064110a9d2592b24c772264c02d27e7bac9871428f757 crossdirect.c"
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