%global commit 85ba2f16633638e55ebc8e84bfbd0aaaa2f72b7a
%global shortcommit %(c=%{commit}; echo ${c:0:9})

%global maj_ver 12
%global min_ver 0
%global patch_ver 0

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

Name:		lld
Version:	%{maj_ver}.%{min_ver}.%{patch_ver}
Release: 0.19.git%{shortcommit}%{?dist}
Summary:	The LLVM Linker

License:	NCSA
URL:		http://llvm.org
Source0:        %{name}-%{shortcommit}.tar.xz
Source1:	run-lit-tests
Source2:	lit.lld-test.cfg.py

Patch0:		0001-CMake-Check-for-gtest-headers-even-if-lit.py-is-not-.patch
Patch1:		0001-Revert-lld-Initial-commit-for-new-Mach-O-backend.patch

BuildRequires:	gcc
BuildRequires:	gcc-c++
BuildRequires:	cmake
BuildRequires:	ninja-build
BuildRequires:	llvm-devel = %{version}
BuildRequires:	llvm-test = %{version}
BuildRequires:	ncurses-devel
BuildRequires:	zlib-devel

# For make check:
BuildRequires:	python3-rpm-macros
BuildRequires:	python3-lit
BuildRequires:	llvm-googletest = %{version}

# For gpg source verification
BuildRequires:	gnupg2

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

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

%description
The LLVM project linker.

%package devel
Summary:	Libraries and header files for LLD
Requires: lld-libs%{?_isa} = %{version}-%{release}
# lld tools are referenced in the cmake files, so we need to add lld as a
# dependency.
Requires: %{name}%{?_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.

%package test
Summary: LLD regression tests
Requires:	%{name}%{?_isa} = %{version}-%{release}
Requires:	python3-lit
Requires:	llvm-test(major) = %{maj_ver}
Requires:	lld-libs = %{version}-%{release}

%description test
LLVM regression tests.

%prep
%setup -q -n %{name}-%{shortcommit}

%patch0 -p1 -b .gtest-fix
# Remove the MachO backend since it doesn't seem to work on big-endian hosts.
%ifarch s390x
%patch1 -p2 -b .remove-MachO
%endif


%build

# Disable lto since it causes the COFF/libpath.test lit test to crash.
%global _lto_cflags %{nil}

%cmake	-B "%{_vpath_builddir}" \
	-GNinja \
	-DLLVM_LINK_LLVM_DYLIB:BOOL=ON \
	-DLLVM_DYLIB_COMPONENTS="all" \
	-DCMAKE_SKIP_RPATH:BOOL=ON \
	-DPYTHON_EXECUTABLE=%{__python3} \
	-DLLVM_INCLUDE_TESTS=ON \
	-DLLVM_MAIN_SRC_DIR=%{_datadir}/llvm/src \
	-DLLVM_EXTERNAL_LIT=%{_bindir}/lit \
	-DLLVM_LIT_ARGS="-sv \
	--path %{_libdir}/llvm" \
%if 0%{?__isa_bits} == 64
	-DLLVM_LIBDIR_SUFFIX=64
%else
	-DLLVM_LIBDIR_SUFFIX=
%endif

%ninja_build -C "%{_vpath_builddir}"

# Build the unittests so we can install them.
%ninja_build -C "%{_vpath_builddir}" lld-test-depends

%install

%global lit_cfg test/%{_arch}.site.cfg.py
%global lit_unit_cfg test/Unit/%{_arch}.site.cfg.py
%global lit_lld_test_cfg_install_path %{_datadir}/lld/lit.lld-test.cfg.py

# Generate lit config files.  Strip off the last line that initiates the
# test run, so we can customize the configuration.
head -n -1 %{_target_platform}/test/lit.site.cfg.py >> %{lit_cfg}
head -n -1 %{_target_platform}/test/Unit/lit.site.cfg.py >> %{lit_unit_cfg}

# Patch lit config files to load custom config:
for f in %{lit_cfg} %{lit_unit_cfg}; do
  echo "lit_config.load_config(config, '%{lit_lld_test_cfg_install_path}')" >> $f
done

# Install test files
install -d %{buildroot}%{_datadir}/lld/src
cp %{SOURCE2} %{buildroot}%{_datadir}/lld/

# The various tar options are there to make sur the archive is the same on 32 and 64 bit arch, i.e.
# the archive creation is reproducible. Move arch-specific content out of the tarball
mv %{lit_cfg} %{buildroot}%{_datadir}/lld/src/%{_arch}.site.cfg.py
mv %{lit_unit_cfg} %{buildroot}%{_datadir}/lld/src/%{_arch}.Unit.site.cfg.py
tar --sort=name --mtime='UTC 2020-01-01' -c test/ | gzip -n > %{buildroot}%{_datadir}/lld/src/test.tar.gz

install -d %{buildroot}%{_libexecdir}/tests/lld
cp %{SOURCE1} %{buildroot}%{_libexecdir}/tests/lld

# Install unit test binaries
install -d %{buildroot}%{_libdir}/lld/
cp -R %{_target_platform}/unittests %{buildroot}%{_libdir}/lld/
rm -rf `find %{buildroot}%{_libdir}/lld/ -iname '*make*'`

# Install gtest libraries
cp %{_target_platform}/%{_lib}/libgtest*so* %{buildroot}%{_libdir}/lld/

# Install libraries and binaries
%ninja_install -C "%{_vpath_builddir}"

# Required when using update-alternatives:
# https://docs.fedoraproject.org/en-US/packaging-guidelines/Alternatives/
touch %{buildroot}%{_bindir}/ld

%post
%{_sbindir}/update-alternatives --install %{_bindir}/ld ld %{_bindir}/ld.lld 1

%postun
if [ $1 -eq 0 ] ; then
  %{_sbindir}/update-alternatives --remove ld %{_bindir}/ld.lld
fi

%check

# armv7lhl tests disabled because of arm issue, see https://koji.fedoraproject.org/koji/taskinfo?taskID=33660162
#ifnarch %{arm}
#ninja_build -C "%{_vpath_builddir}" check-lld
#endif

%ldconfig_scriptlets libs

%files
%license LICENSE.TXT
%ghost %{_bindir}/ld
%{_bindir}/lld*
%{_bindir}/ld.lld
%{_bindir}/ld64.lld
%{_bindir}/wasm-ld

%files devel
%{_includedir}/lld
%{_libdir}/liblld*.so
%{_libdir}/cmake/lld/

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

%files test
%{_libexecdir}/tests/lld/
%{_libdir}/lld/
%{_datadir}/lld/src/test.tar.gz
%{_datadir}/lld/src/%{_arch}.site.cfg.py
%{_datadir}/lld/src/%{_arch}.Unit.site.cfg.py
%{_datadir}/lld/lit.lld-test.cfg.py

%changelog