%bcond_without check
%bcond_without toolchain_clang

%if %{with toolchain_clang}
%global toolchain clang
%endif

%global maj_ver 18
%global min_ver 1
%global patch_ver 8

%global _scl_prefix /opt/openEuler
%{?scl:%scl_package %scl}
%{!?scl:%global scl_prefix llvm-toolset-%{maj_ver}-}
%{!?scl:%global pkg_name %{name}}
%global install_prefix %{!?scl:%{_scl_prefix}/llvm-toolset-%{maj_ver}/root}%{_prefix}
%global install_datadir %{!?scl:%{_scl_prefix}/llvm-toolset-%{maj_ver}/root}%{_datadir}

%global install_bindir %{install_prefix}/bin
%if 0%{?__isa_bits} == 64
%global install_libdir %{install_prefix}/lib64
%else
%global install_libdir %{install_prefix}/lib
%endif
%global install_includedir %{install_prefix}/include

# Don't include unittests in automatic generation of provides or requires.
%global __provides_exclude_from ^%{_libdir}/lld/.*$
%global __requires_exclude ^libgtest.*$

# Disable LTO as this causes crash if gcc lto enabled.
%define _lto_cflags %{nil}

Name:		%{?scl_prefix}lld
Version:	%{maj_ver}.%{min_ver}.%{patch_ver}
Release:	1
Summary:	The LLVM Linker

License:	NCSA
URL:		http://llvm.org
Source0:	https://github.com/llvm/llvm-project/releases/download/llvmorg-%{version}/lld-%{version}.src.tar.xz

Patch1:		fedora-PATCH-lld-Import-compact_unwind_encoding.h-from-libu.patch

BuildRequires:	clang
BuildRequires:	cmake
BuildRequires:	%{?scl_prefix}llvm-devel = %{version}
BuildRequires:	%{?scl_prefix}llvm-googletest = %{version}
BuildRequires:	%{?scl_prefix}llvm-test = %{version}
BuildRequires:  %{?scl_prefix}llvm-cmake-utils = %{version}
BuildRequires:	ncurses-devel
BuildRequires:	ninja-build
BuildRequires:	python3-rpm-macros
BuildRequires:	python3-lit >= %{version}
BuildRequires:	zlib-devel

Requires(post): %{_sbindir}/update-alternatives
Requires(preun): %{_sbindir}/update-alternatives

Requires: %{pkg_name}-libs = %{version}-%{release}

%description
The LLVM project linker.

%package devel
Summary:	Libraries and header files for LLD
Requires: %{pkg_name}-libs%{?_isa} = %{version}-%{release}

%description devel
This package contains library and header files needed to develop new native
programs that use the LLD infrastructure.

%package libs
Summary:	LLD shared libraries

%description libs
Shared libraries for LLD.

%prep
%autosetup -n lld-%{version}.src -p2

%build
mkdir -p _build
cd _build
%cmake .. -G Ninja \
	-DCMAKE_BUILD_TYPE=Release \
	-DCMAKE_INSTALL_PREFIX=%{install_prefix} \
	-DLLVM_LINK_LLVM_DYLIB:BOOL=ON \
	-DLLVM_DYLIB_COMPONENTS="all" \
	-DCMAKE_SKIP_RPATH:BOOL=ON \
	-DPYTHON_EXECUTABLE=%{__python3} \
	-DLLVM_INCLUDE_TESTS=ON \
	-DLLVM_EXTERNAL_LIT=%{_bindir}/lit \
	-DLLVM_LIT_ARGS="-sv \
	--path %{install_prefix}" \
	-DLLVM_COMMON_CMAKE_UTILS=%{install_datadir}/llvm/cmake \
%if "%{toolchain}" == "clang"
	-DCMAKE_C_COMPILER=clang \
	-DCMAKE_CXX_COMPILER=clang++ \
%endif
	-DLLVM_MAIN_SRC_DIR=%{install_prefix}/src

%ninja_build

%install
%ninja_install -C _build

rm %{buildroot}%{install_includedir}/mach-o/compact_unwind_encoding.h

%check
%if %{with check}
%ninja_build check-lld -C _build
%endif

%files
%license LICENSE.TXT
%{install_bindir}/*

%files devel
%{install_includedir}/lld
%{install_libdir}/liblld*.so
%{install_libdir}/cmake/lld/

%files libs
%{install_libdir}/liblld*.so.*

%changelog
* Fri Dec 6 2024 liyunfei <liyunfei33@huawei.com> - 18.1.8-1
- init for Multi-Version LLVM-18.1.8

* Tue Nov 12 2024 Funda Wang <fundawang@yeah.net> - 17.0.6-8
- fix check section

* Mon Nov 11 2024 Funda Wang <fundawang@yeah.net> - 17.0.6-7
- adopt to new cmake macro

* Mon Sep 23 2024 zhanglimin <zhanglimin@loongson.cn> - 17.0.6-6
- [LoongArch] Backport the support for call36 and extreme model relocs.

* Tue Jul 30 2024 liyunfei <liyunfei33@huawei.com> - 17.0.6-5
- Disable toolchain_clang build for BiSheng Autotuner support temporary.

* Tue Jul 16 2024 liyunfei <liyunfei33@huawei.com> - 17.0.6-4
- Add BiSheng Autotuner support.

* Fri Jul 5 2024 liyunfei <liyunfei33@huawei.com> - 17.0.6-3
- Add toolchain_clang build support

* Mon Mar 25 2024 zhanglimin <zhanglimin@loongson.cn> - 17.0.6-2
- Supoort `relax` feature on LoongArch

* Fri Dec 1 2023 zhoujing <zhoujing106@huawei.com> - 17.0.6-1
- Update to 17.0.6

* Thu May 25 2023 cf-zhao <zhaochuanfeng@huawei.com> - 12.0.1-1
- Package init