%global fast 0
%global use_jankratochvil_dwz 1
%global use_jankratochvil_rust 0
%global pkg_prefix /opt/%{name}
%global _unpackaged_files_terminate_build 0
# dwz: Couldn't find DIE referenced by DW_OP_GNU_parameter_ref
%global _find_debuginfo_dwz_opts %{nil}
# *** ERROR: ambiguous python shebang in /opt/lldb-experimental/...: #!/usr/bin/env python. Change it to python3 (or python2) explicitly.
%global __brp_mangle_shebangs %{nil}
%if %{fast}
%global debug_package %{nil}
%endif
Name: lldb-experimental
Version: 11.0.0
Release: 0.20200523snap0%{?dist}
Summary: Next generation high-performance debugger - experimental trunk snapshot
License: NCSA
URL: http://lldb.llvm.org/
ExclusiveArch: x86_64
BuildRequires: gcc-c++ git libedit-devel libatomic ninja-build libxml2-devel zlib-devel valgrind-devel libpfm-devel
# https://src.fedoraproject.org/rpms/epydoc
#BuildRequires: epydoc
%if 0%{?rhel:1} && 0%{?rhel} <= 7
BuildRequires: llvm-toolset-7-cmake devtoolset-8-gcc-c++ python-devel python2-pyyaml
# swig on rhel7: /builddir/build/BUILD/lldb-experimental-11.0.0/lldb/bindings/./python/python-typemaps.swig:496: Error: Syntax error in input(3).
BuildRequires: swig3
# https://bugzilla.redhat.com/show_bug.cgi?id=1511892
%global __cmake /opt/rh/llvm-toolset-7/root/usr/bin/cmake3
%global ninjabuild ninja-build
%else
%if !0%{?rhel:1} || 0%{?rhel} > 8
BuildRequires: z3-devel
%endif
BuildRequires: cmake swig
BuildRequires: python3-devel python3-pygments python3-pyyaml
# removed in F31+
#BuildRequires: xar-devel
%global ninjabuild ninja
%endif

%description
LLDB is a next generation, high-performance debugger. It is built as a set
of reusable components which highly leverage existing libraries in the
larger LLVM Project, such as the Clang expression parser and LLVM
disassembler.
This package is an experimental trunk snapshot.
%if %{use_jankratochvil_dwz}
This package contains off-trunk DWZ support for Fedora debuginfos such as:
  unsupported DW_FORM values: 0x1f20 0x1f21
%endif
%if %{use_jankratochvil_rust}
This package contains off-trunk Rust support:
  https://github.com/rust-lang-nursery/lldb
%endif

%package devel
Summary: Development header files for %{name}
Requires: %{name}%{?_isa} = %{version}-%{release}

%description devel
The package contains header files for %{name}.

{-L,"-Wl,-rpath,"}%{pkg_prefix}/%{_lib} -I%{pkg_prefix}/include -llldb -lLLVMSupport -ltinfo -pthread

%ldconfig_scriptlets

%prep
%setup -q -c -T
OPTS="--depth 10000"
%if !0%{?rhel:1} || 0%{?rhel} > 7
  OPTS="$OPTS --no-tags"
%endif
REF="reference"
# RHEL-7 does not support: --reference-if-able
CLONEOPTS="--single-branch"
test -d ../$REF/ && CLONEOPTS="$CLONEOPTS --reference ../$REF"
# 2500 = 1 month in 2019
git clone $OPTS $CLONEOPTS https://github.com/llvm/llvm-project.git .
%if %{use_jankratochvil_dwz} || %{use_jankratochvil_rust}
git remote remove jankratochvil || :
#git remote add jankratochvil git://git.jankratochvil.net/lldb
git remote add jankratochvil https://github.com/jankratochvil/llvm-project.git
git fetch $OPTS jankratochvil
git config user.email jankratochvil@copr.fedorainfracloud.org
git config user.name jankratochvil
%endif
%if %{use_jankratochvil_dwz}
git merge jankratochvil/dwz
%endif
%if %{use_jankratochvil_rust}
# '-c merge.renames=false' is F-29+.
# '-c merge.renameLimit=0' has no effect.
git -c merge.renameLimit=1 merge jankratochvil/rust
%endif

%build
mkdir build-release
cd    build-release

FLAGS="%{optflags}"

# lldb/scripts/LLDBWrapPython.cpp:23699:70: error: format not a string literal and no format arguments [-Werror=format-security]
FLAGS="$FLAGS -Wno-error=format-security"

%if (0%{?rhel:1} && 0%{?rhel} <= 7)
. /opt/rh/devtoolset-8/enable
# -gsplit-dwarf: LLVM: internal compiler error: in output_index_string, at dwarf2out.c:21891
# https://bugzilla.redhat.com/show_bug.cgi?id=1590678
# Set %%{fast} only after %%debug_package above.
%global fast 1
%endif
%if %{fast}
FLAGS="$FLAGS -g0"
%else
# -fno-reorder-blocks-and-partition:
# -gsplit-dwarf: Error: can't resolve `.text.unlikely' - `.LVL414'
# https://bugzilla.redhat.com/show_bug.cgi?id=1573647
FLAGS="$FLAGS -gsplit-dwarf -fno-reorder-blocks-and-partition"
%endif

CFLAGS="$FLAGS"
CXXFLAGS="$FLAGS"

# This is default - changing it breaks the testsuite: -DLLVM_LINK_LLVM_DYLIB=OFF
# It does not work: -DDCMAKE_EXECUTABLE_SUFFIX=-experimental
# -fdebug-types-section && -DLLVM_USE_LINKER=gold:
# ../../../../lib64/libclangLex.a(PreprocessingRecord.cpp.o)(.debug_types+0xfe): error: undefined reference to 'clang::SourceRange::getBegin() const'
%cmake ../llvm \
  -GNinja \
  -DCMAKE_INSTALL_PREFIX=%{buildroot}%{pkg_prefix} \
  -DBUILD_SHARED_LIBS=OFF \
%if %{fast}
  -DCMAKE_BUILD_TYPE=Release \
%else
  -DCMAKE_BUILD_TYPE=RelWithDebInfo \
%endif
  -DLLVM_ENABLE_PROJECTS="lldb;clang;lld" \
  -DLLVM_TARGETS_TO_BUILD=X86 \
  -DLLVM_BUILD_TOOLS=OFF \
  -DLLVM_USE_LINKER=gold \
  $(: file INSTALL cannot find build-release/lib/python3.6 ) \
%if 0%{?__isa_bits} == 64
  -DLLVM_LIBDIR_SUFFIX=64 \
%else
  -DLLVM_LIBDIR_SUFFIX= \
%endif
  -DLLDB_DISABLE_CURSES=OFF \
  -DLLDB_DISABLE_LIBEDIT=OFF \
  -DLLDB_DISABLE_PYTHON=OFF \
  #
%{ninjabuild} -v

%install
mkdir -p %{buildroot}%{pkg_prefix}
(function revline {
   echo "$(cd $1;git rev-parse ${2:-origin/master}) ${2:-$1}"
 }
 revline .
%if %{use_jankratochvil_dwz}
 revline . jankratochvil/dwz
%endif
%if %{use_jankratochvil_rust}
 revline . jankratochvil/rust
%endif
) >%{buildroot}%{pkg_prefix}/HEAD
cd build-release
%{ninjabuild} -v install
mkdir -p %{buildroot}%{_bindir}
# lldb-mi
for i in lldb;do
  echo >%{buildroot}%{_bindir}/${i}-experimental -e '#! /bin/bash\nexec %{pkg_prefix}/bin/'$i' "$@"'
  chmod +x %{buildroot}%{_bindir}/${i}-experimental
done

# remove static libraries
rm -fv %{buildroot}%{_libdir}/*.a

### python: fix liblldb.so -> liblldb.so.7 symlink target
(cd %{buildroot}%{pkg_prefix}/%{_lib}/python*/site-packages/lldb/
 ln -vsf "$(dirname $(readlink _lldb.so))/$(readlink $(readlink _lldb.so))" _lldb.so
)

%files
%{_bindir}/lldb-experimental
#{_bindir}/lldb-mi-experimental
%{pkg_prefix}/HEAD
%{pkg_prefix}/bin/lldb
%{pkg_prefix}/bin/lldb-server
#{pkg_prefix}/bin/lldb-mi
%{pkg_prefix}/bin/lldb-argdumper
# RHEL-7: File not found by glob: .../lib{lldb,clang,LLVM}*.so.*
%{pkg_prefix}/%{_lib}/libl*.so.*
%{pkg_prefix}/%{_lib}/python*

%files devel
%{pkg_prefix}/include
%{pkg_prefix}/%{_lib}/lib[^l]*.so.*
%{pkg_prefix}/%{_lib}/*.so
%{pkg_prefix}/%{_lib}/*.a

%changelog
* Thu Apr  5 2018 Jan Kratochvil <jan.kratochvil@redhat.com> - 7.0.0-0.1
- Initial import for COPR, based on Fedora package 'lldb'.