[COPY] --- T2-COPYRIGHT-BEGIN ---
[COPY] t2/package/*/wasi-compiler-rt/wasi-compiler-rt.desc
[COPY] Copyright (C) 2008 - 2026 The T2 SDE Project
[COPY] SPDX-License-Identifier: GPL-2.0
[COPY] --- T2-COPYRIGHT-END ---

[I] Compiler runtime libraries

[T] A simple library that provides an implementation of the low-level
[T] target-specific hooks required by code generation and other runtime
[T] components. For example, when compiling for a 32-bit target, converting
[T] a double to a 64-bit unsigned integer is compiling into a runtime call
[T] to the "__fixunsdfdi" function.

[U] https://compiler-rt.llvm.org

[A] University of Illinois/NCSA
[A] Chris Lattner <clattner@apple.com>
[M] René Rebe <rene@exactco.de>

[C] extra/development
[F] CROSS NO-LTO
[R] - alpha hppa hppa64 ia64

[L] BSD
[V] 23.1.3
[P] X -----5---9 152.700

[CV-GROUP] llvm-project
[D] 23ab38c986a2dfa119c3df4005794672d8691f2b14bf7a75fc0c9d6c llvm-project-23.1.3.src.tar.xz https://github.com/llvm/llvm-project/releases/download/llvmorg-23.1.3/

CC_WRAPPER_BYPASS=1

# TODO: sync w/ wasi-libc
[ $prefix_auto = 1 ] && prefix=opt/wasi && set_confopt

runmake=0
srcdir=*/compiler-rt

prepare_sources() {
	cd ..
	tar $taropt `match_source_file -p llvm-cmake-$ver`
	ln -svf cmake* cmake
}
#hook_add preconf 5 prepare_sources

. $base/package/*/*/wasi.in

export CC=clang CXX=clang++ # LD=clang
export CFLAGS="-fno-exceptions --sysroot=$root/opt/wasi"
export CXXFLAGS="-fno-exceptions --sysroot=$root/opt/wasi"
export DESTDIR=$root

cmakeopt=
var_append cmakeopt ' ' "-DUNIX=ON \
-DCMAKE_TOOLCHAIN_FILE=$confdir/../wasi-libc/wasi-sdk.cmake \
-DCMAKE_C_COMPILER_WORKS=ON -DCMAKE_CXX_COMPILER_WORKS=ON \
-DCMAKE_STAGING_PREFIX=/opt/wasi"

var_append cmakeopt ' ' "-DCOMPILER_RT_BAREMETAL_BUILD=ON \
-DCOMPILER_RT_INCLUDE_TESTS=OFF \
-DCOMPILER_RT_HAS_FPIC_FLAG=OFF \
-DCOMPILER_RT_DEFAULT_TARGET_ONLY=ON \
-DCOMPILER_RT_OS_DIR=wasi"

# TODO: why does the camke module seach only fail for native builds?
atstage native && var_append cmakeopt ' ' -DLLVM_CMAKE_DIR=$(pkgprefix libdir llvm)/cmake

build_compiler_rt() {
	eval cmake -B objs $cmakeopt compiler-rt-*/lib/builtins
	cmake --build objs
	cmake --install objs

	clangver=${ver%%.*}

	mkdir -p $root/usr/${libdir##*/}/clang/$clangver/lib/wasip1/
	cp -arv $root/$prefix/lib/wasi/libclang_rt.builtins-wasm32.a $root/usr/${libdir##*/}/clang/$clangver/lib/wasip1/

	if ! atstage native; then
		mkdir -p $root/TOOLCHAIN/cross/lib/clang/$clangver/lib/wasip1/
		cp -arv $root/$prefix/lib/wasi/libclang_rt.builtins-wasm32.a \
			$root/TOOLCHAIN/cross/lib/clang/$clangver/lib/wasip1/
	fi
}
hook_add inmake 5 build_compiler_rt