1 files changed, 372 insertions, 0 deletions
diff --git a/build-bootstrap.sh b/build-bootstrap.sh
new file mode 100755
index 0000000..1d78ad3
--- /dev/null
+++ b/build-bootstrap.sh
@@ -0,0 +1,372 @@
+#!/bin/sh -e
+export CC=clang
+export CXX=clang++
+export LD=ld.lld
+export MAPLE=$(pwd)/maple
+export THREADS=$(nproc)
+export HOST=x86_64-unknown-linux-musl
+
+# A simplified FHS variant with symlinks for backwards compatibility ~ahill
+# TODO: Where does /usr/com fit into all of this (shared state directory)? ~ahill
+mkdir -p $MAPLE/bin
+mkdir -p $MAPLE/boot
+mkdir -p $MAPLE/dev
+mkdir -p $MAPLE/etc
+mkdir -p $MAPLE/home/root
+mkdir -p $MAPLE/lib
+# TODO: Does it make sense to have this long-term? Anything that depends on
+#       libc++ fails to link without it, but this should be fixed via a
+#       configuration change in LLVM. ~ahill
+ln -s . $MAPLE/lib/$HOST
+mkdir -p $MAPLE/maple/sources
+mkdir -p $MAPLE/mnt
+mkdir -p $MAPLE/proc
+ln -s home/root $MAPLE/root
+ln -s var/run $MAPLE/run
+mkdir -p $MAPLE/sbin
+mkdir -p $MAPLE/sys
+mkdir -p $MAPLE/tmp
+mkdir -p $MAPLE/usr
+ln -s ../bin $MAPLE/usr/bin
+mkdir -p $MAPLE/usr/include
+ln -s ../lib $MAPLE/usr/lib
+ln -s ../lib $MAPLE/usr/libexec
+ln -s ../sbin $MAPLE/usr/sbin
+mkdir -p $MAPLE/usr/share
+mkdir -p $MAPLE/var
+mkdir -p $MAPLE/var/cache
+mkdir -p $MAPLE/var/lib
+mkdir -p $MAPLE/var/lock
+mkdir -p $MAPLE/var/log
+mkdir -p $MAPLE/var/run
+mkdir -p $MAPLE/var/spool
+mkdir -p $MAPLE/var/tmp
+
+mkdir -p build
+cd build
+
+# LLVM Build
+tar xf ../sources/llvm-project-*.tar*
+cd llvm-project-*/
+cmake -B stage1 -G Ninja -S llvm \
+	-DCMAKE_BUILD_TYPE=Release \
+	-DCMAKE_INSTALL_PREFIX=$MAPLE/maple/tools \
+	-DCLANG_DEFAULT_CXX_STDLIB=libc++ \
+	-DCLANG_DEFAULT_RTLIB=compiler-rt \
+	-DCLANG_DEFAULT_UNWINDLIB=libunwind \
+	-DCOMPILER_RT_USE_BUILTINS_LIBRARY=ON \
+	-DLIBCXX_CXX_ABI=libcxxabi \
+	-DLIBCXX_HAS_MUSL_LIBC=ON \
+	-DLIBCXX_USE_COMPILER_RT=ON \
+	-DLIBCXXABI_USE_COMPILER_RT=ON \
+	-DLIBCXXABI_USE_LLVM_UNWINDER=ON \
+	-DLIBUNWIND_ENABLE_ASSERTIONS=OFF \
+	-DLIBUNWIND_USE_COMPILER_RT=ON \
+	-DLLVM_BUILD_LLVM_DYLIB=ON \
+	-DLLVM_ENABLE_LIBCXX=ON \
+	-DLLVM_ENABLE_PROJECTS="clang;lld;llvm" \
+	-DLLVM_ENABLE_RUNTIMES="compiler-rt;libunwind;libcxxabi;libcxx" \
+	-DLLVM_HOST_TRIPLE=$HOST \
+	-DLLVM_INSTALL_BINUTILS_SYMLINKS=ON \
+	-DLLVM_INSTALL_UTILS=ON \
+	-DLLVM_LINK_LLVM_DYLIB=ON \
+	-DLLVM_TARGETS_TO_BUILD=X86 \
+	-DCMAKE_BUILD_WITH_INSTALL_RPATH=ON
+cmake --build stage1
+cmake --install stage1
+cd ..
+
+export CC="$MAPLE/maple/tools/bin/clang"
+export CXX="$MAPLE/maple/tools/bin/clang++"
+export CFLAGS="--sysroot=$MAPLE"
+export CXXFLAGS="$CFLAGS"
+export LD=$MAPLE/maple/tools/bin/ld.lld
+export PATH="$MAPLE/maple/tools/bin:$PATH"
+
+# Linux Headers
+tar xf ../sources/linux-*.tar*
+cd linux-*/
+LLVM=1 make -j $THREADS mrproper
+LLVM=1 make -j $THREADS headers_install INSTALL_HDR_PATH=$MAPLE/usr
+cd ..
+
+# musl Build
+tar xf ../sources/musl-*.tar*
+cd musl-*/
+./configure --disable-static --includedir=/usr/include --prefix=""
+make -j $THREADS
+make -j $THREADS install DESTDIR=$MAPLE
+# NOTE: musl provides static libraries for POSIX libraries such as libm, but
+#       fails to provide shared versions which will breaks builds later on.
+#       Granted, they are useless since libc.so contains all the functionality
+#       we need, but it is needed for compatibility. As of April 5th, 2025, zsh
+#       is known to be misconfigured as a result of missing libraries. ~ahill
+for lib in $(grep "EMPTY_LIB_NAMES =" Makefile | sed "s/EMPTY_LIB_NAMES = //"); do
+	ln -s libc.so $MAPLE/lib/lib$lib.so
+done
+# NOTE: musl has some witchcraft associated with it that allows it to function
+#       as an implementation of ldd. Honestly, the idea of a library with as an
+#       entry point is something I have never thought of before, but I'm
+#       interested in exploring the possibilities. ~ahill
+ln -s /lib/ld-musl-x86_64.so.1 $MAPLE/bin/ldd
+cd ..
+
+# dash Build
+tar xf ../sources/dash-*.tar*
+cd dash-*/
+./configure \
+	--datarootdir=/usr/share \
+	--exec-prefix="" \
+	--includedir=/usr/include \
+	--libexecdir=/lib \
+	--prefix="" \
+	--sharedstatedir=/usr/com
+make -j $THREADS
+make -j $THREADS install DESTDIR=$MAPLE
+ln -s dash $MAPLE/bin/sh
+cd ..
+
+# m4 Build
+tar xf ../sources/m4-*.tar*
+cd m4-*/
+./configure \
+	--datarootdir=/usr/share \
+	--disable-nls \
+	--enable-c++ \
+	--includedir=/usr/include \
+	--libexecdir=/lib \
+	--prefix="" \
+	--sharedstatedir=/usr/com
+make -j $THREADS
+make -j $THREADS install DESTDIR=$MAPLE
+cd ..
+
+# Coreutils Build
+tar xf ../sources/coreutils-*.tar*
+cd coreutils-*/
+./configure \
+	--datarootdir=/usr/share \
+	--disable-nls \
+	--includedir=/usr/include \
+	--libexecdir=/lib \
+	--prefix="" \
+	--sharedstatedir=/usr/com
+make -j $THREADS
+make -j $THREADS install DESTDIR=$MAPLE
+cd ..
+
+# Diffutils Build
+tar xf ../sources/diffutils-*.tar*
+cd diffutils-*/
+./configure \
+	--disable-nls \
+	--exec-prefix="" \
+	--libexecdir=/lib \
+	--localstatedir=/var \
+	--prefix=/usr \
+	--sysconfdir=/etc
+make -j $THREADS
+make -j $THREADS install DESTDIR=$MAPLE
+cd ..
+
+# Findutils Build
+tar xf ../sources/findutils-*.tar*
+cd findutils-*/
+./configure \
+	--datarootdir=/usr/share \
+	--disable-nls \
+	--exec-prefix="" \
+	--libexecdir=/lib \
+	--localstatedir=/var \
+	--prefix=/usr \
+	--sysconfdir=/etc
+make -j $THREADS
+make -j $THREADS install DESTDIR=$MAPLE
+cd ..
+
+# Grep Build
+tar xf ../sources/grep-*.tar*
+cd grep-*/
+./configure \
+	--datarootdir=/usr/share \
+	--disable-nls \
+	--exec-prefix="" \
+	--libexecdir=/lib \
+	--localstatedir=/var \
+	--prefix=/usr \
+	--sysconfdir=/etc
+make -j $THREADS
+make -j $THREADS install DESTDIR=$MAPLE
+cd ..
+
+# Gzip Build
+tar xf ../sources/gzip-*.tar*
+cd gzip-*/
+./configure \
+	--datarootdir=/usr/share \
+	--exec-prefix="" \
+	--libexecdir=/lib \
+	--localstatedir=/var \
+	--prefix=/usr \
+	--sysconfdir=/etc
+make -j $THREAD
+make -j $THREAD install DESTDIR=$MAPLE
+cd ..
+
+# Make Build
+tar xf ../sources/make-*.tar*
+cd make-*/
+./configure \
+	--datarootdir=/usr/share \
+	--disable-nls \
+	--enable-year2038 \
+	--exec-prefix="" \
+	--libexecdir=/lib \
+	--localstatedir=/var \
+	--prefix=/usr \
+	--sysconfdir=/etc
+make -j $THREAD
+make -j $THREAD install DESTDIR=$MAPLE
+cd ..
+
+# Sed Build
+tar xf ../sources/sed-*.tar*
+cd sed-*/
+./configure \
+	--datarootdir=/usr/share \
+	--disable-i18n \
+	--disable-nls \
+	--exec-prefix="" \
+	--libexecdir=/lib \
+	--localstatedir=/var \
+	--prefix=/usr \
+	--sysconfdir=/etc
+make -j $THREAD
+make -j $THREAD install DESTDIR=$MAPLE
+cd ..
+
+# Tar Build
+tar xf ../sources/tar-*.tar*
+cd tar-*/
+./configure \
+	--datarootdir=/usr/share \
+	--disable-nls \
+	--exec-prefix="" \
+	--libexecdir=/lib \
+	--localstatedir=/var \
+	--prefix=/usr \
+	--sysconfdir=/etc
+make -j $THREAD
+make -j $THREAD install DESTDIR=$MAPLE
+cd ..
+
+# Xz Build
+tar xf ../sources/xz-*.tar*
+cd xz-*/
+./configure \
+	--datarootdir=/usr/share \
+	--disable-doc \
+	--disable-nls \
+	--disable-static \
+	--enable-year2038 \
+	--exec-prefix="" \
+	--libexecdir=/lib \
+	--localstatedir=/var \
+	--prefix=/usr \
+	--sysconfdir=/etc
+make -j $THREAD
+make -j $THREAD install DESTDIR=$MAPLE
+cd ..
+
+# Clear compiler flags to avoid potentially issues with the LLVM build
+export CFLAGS=""
+export CXXFLAGS=""
+
+# LLVM Build (Stage 2)
+tar xf ../sources/llvm-project-*.tar*
+cd llvm-project-*/
+TOOLCHAIN_FILE=$HOST-maple-clang.cmake
+# NOTE: First time doing this. Did I do it right? ~ahill
+echo "set(CMAKE_SYSTEM_NAME Linux)" > $TOOLCHAIN_FILE
+echo "set(CMAKE_SYSROOT $MAPLE)" >> $TOOLCHAIN_FILE
+echo "set(CMAKE_C_COMPILER_TARGET $HOST)" >> $TOOLCHAIN_FILE
+echo "set(CMAKE_CXX_COMPILER_TARGET $HOST)" >> $TOOLCHAIN_FILE
+echo "set(CMAKE_C_FLAGS_INIT \"$CFLAGS\")" >> $TOOLCHAIN_FILE
+echo "set(CMAKE_CXX_FLAGS_INIT \"$CXXFLAGS\")" >> $TOOLCHAIN_FILE
+echo "set(CMAKE_LINKER_TYPE LLD)" >> $TOOLCHAIN_FILE
+echo "set(CMAKE_C_COMPILER \"$CC\")" >> $TOOLCHAIN_FILE
+echo "set(CMAKE_CXX_COMPILER \"$CXX\")" >> $TOOLCHAIN_FILE
+echo "set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)" >> $TOOLCHAIN_FILE
+echo "set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)" >> $TOOLCHAIN_FILE
+echo "set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)" >> $TOOLCHAIN_FILE
+echo "set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)" >> $TOOLCHAIN_FILE
+# TODO: Is it possible to prevent CMake from building static libraries? ~ahill
+# NOTE: compiler-rt fails to build on musl because execinfo.h is missing.
+#       Disabling COMPILER_RT_BUILD_GWP_ASAN works. ~ahill
+# See also: https://github.com/llvm/llvm-project/issues/60687
+cmake -B stage2 -G Ninja -S llvm \
+	-DCMAKE_BUILD_TYPE=Release \
+	-DCMAKE_INSTALL_PREFIX=$MAPLE/usr \
+	-DCMAKE_TOOLCHAIN_FILE=$(pwd)/$TOOLCHAIN_FILE \
+	-DCLANG_DEFAULT_CXX_STDLIB=libc++ \
+	-DCLANG_DEFAULT_RTLIB=compiler-rt \
+	-DCLANG_DEFAULT_UNWINDLIB=libunwind \
+	-DCOMPILER_RT_BUILD_GWP_ASAN=OFF \
+	-DCOMPILER_RT_USE_BUILTINS_LIBRARY=ON \
+	-DLIBCXX_CXX_ABI=libcxxabi \
+	-DLIBCXX_HAS_MUSL_LIBC=ON \
+	-DLIBCXX_USE_COMPILER_RT=ON \
+	-DLIBCXXABI_USE_COMPILER_RT=ON \
+	-DLIBCXXABI_USE_LLVM_UNWINDER=ON \
+	-DLIBUNWIND_ENABLE_ASSERTIONS=OFF \
+	-DLIBUNWIND_USE_COMPILER_RT=ON \
+	-DLLVM_BUILD_LLVM_DYLIB=ON \
+	-DLLVM_ENABLE_LIBCXX=ON \
+	-DLLVM_ENABLE_LLD=ON \
+	-DLLVM_ENABLE_PROJECTS="clang;lld;llvm" \
+	-DLLVM_ENABLE_RUNTIMES="compiler-rt;libunwind;libcxxabi;libcxx" \
+	-DLLVM_ENABLE_ZSTD=OFF \
+	-DLLVM_HOST_TRIPLE=$HOST \
+	-DLLVM_INSTALL_BINUTILS_SYMLINKS=ON \
+	-DLLVM_INSTALL_UTILS=ON \
+	-DLLVM_LINK_LLVM_DYLIB=ON \
+	-DCMAKE_POSITION_INDEPENDENT_CODE=ON \
+	-DCMAKE_BUILD_WITH_INSTALL_RPATH=ON
+cmake --build stage2
+cmake --install stage2
+ln -s clang $MAPLE/bin/cc
+ln -s clang++ $MAPLE/bin/c++
+ln -s ld.lld $MAPLE/bin/ld
+cd ..
+
+# CMake Build
+tar xf ../sources/cmake-*.tar*
+cd cmake-*/
+# NOTE: Tests are disabled because they attempt to run on the system responsible
+#       for the build, not the system being built. ~ahill
+cmake -B build -G Ninja \
+	-DBUILD_TESTING=OFF \
+	-DCMAKE_BUILD_TYPE=Release \
+	-DCMAKE_C_COMPILER=$CC \
+	-DCMAKE_CXX_COMPILER=$CXX \
+	-DCMAKE_INSTALL_PREFIX=$MAPLE/usr \
+	-DCMAKE_SYSROOT=$MAPLE \
+	-DCMAKE_USE_OPENSSL=OFF
+cmake --build build
+cmake --install build
+cd ..
+
+# Gawk Build
+tar xf ../sources/gawk-*.tar*
+cd gawk-*/
+./configure \
+	--disable-mpfr \
+	--disable-nls \
+	--exec-prefix="" \
+	--libexecdir=/lib \
+	--localstatedir=/var \
+	--prefix=/usr \
+	--sysconfdir=/etc
+make -j $THREADS
+make -j $THREADS install DESTDIR=$MAPLE
+cd ..