5/llvm: Add LLVM as a package for RTEMS.

- Add '%source download <source>' to only download the source
  and do not unpack and prep. This can used when a package
  internally needs another source package.

- Install the staging root only if it is present. A package
  may internally build another package that is not staged as it
  is not suitable for installing.

Updates #3250
Updatew #3797

2 files changed, 249 insertions, 0 deletions

diff --git a/source-builder/config/llvm-common-1.cfg b/source-builder/config/llvm-common-1.cfg
new file mode 100644
index 0000000..c75769f
--- /dev/null
+++ b/source-builder/config/llvm-common-1.cfg
@@ -0,0 +1,152 @@
+#
+# LLVM Common Support.
+#
+# This configuration file configure's, make's and install's LLVM and some of
+# it projects.
+#
+
+%include %{_configdir}/checks.cfg
+
+#
+# The package description.
+#
+Name:      rtems-llvm-%{llvm_version}-%{_host}-%{release}
+Summary:   LLVM v%{llvm_version} on host %{_host}
+Version:   %{llvm_version}
+Release:   %{release}
+URL: 	   http://llvm.org/
+
+#
+# The LLVM version depends on the type of build we are doing.
+#
+%if %{rsb_released}
+ %define rtems_llvm_version %{rsb_version}
+%else
+ %define rtems_llvm_version %{rtems_version}
+%endif
+
+#
+# LLVM Download URL.
+#
+%define llvm_url https://github.com/llvm/llvm-project/releases/download/llvmorg-%{llvm_version}
+
+#
+# Packages
+#
+%source set cfe                %{llvm_url}/cfe-%{llvm_version}.src.tar.xz
+%source set clang-tools-extra  %{llvm_url}/clang-tools-extra-%{llvm_version}.src.tar.xz
+%source set compiler-rt        %{llvm_url}/compiler-rt-%{llvm_version}.src.tar.xz
+%source set libcxx             %{llvm_url}/libcxx-%{llvm_version}.src.tar.xz
+%source set libcxxabi          %{llvm_url}/libcxxabi-%{llvm_version}.src.tar.xz
+%source set libunwind          %{llvm_url}/libunwind-%{llvm_version}.src.tar.xz
+%source set lld                %{llvm_url}/lld-%{llvm_version}.src.tar.xz
+%source set lldb               %{llvm_url}/lldb-%{llvm_version}.src.tar.xz
+%source set llvm               %{llvm_url}/llvm-%{llvm_version}.src.tar.xz
+%source set openmp             %{llvm_url}/openmp-%{llvm_version}.src.tar.xz
+
+#
+# Build LLDB on all hosts except MacOS as it reqires a codesign login key of
+# name 'llvm'.
+#
+%if %{_build_os} != darwin
+ %define with_llvm_lldb 1
+%endif
+
+%if %{defined with_llvm_lldb}
+ %define lldb_codesign_identity -DLLDB_CODESIGN_IDENTITY=llvm
+%else
+ %define lldb_codesign_identity %{nil}
+%endif
+
+#
+# Prepare the source code.
+#
+%prep
+  # save the build top directory and cd back to it rather than
+  # using 'cd ..' because some shells change $PWD to a symlink's
+  # target location and 'cd ..' fails.
+  build_top=$(pwd)
+
+  llvm_source=%{?llvm_external:%{llvm_expand_name}}%{!?llvm_external:"llvm-%{llvm_version}"}
+
+  # llvm is a collection of separate packages, download them and then create
+  # the source tree.
+
+  source_dir_llvm=${llvm_source}
+
+  %source setup llvm -q
+  %{__mv} llvm-%{llvm_version}.src ${source_dir_llvm}
+
+  %source setup cfe -q
+  %{__mv} cfe-%{llvm_version}.src ${source_dir_llvm}/tools/clang
+
+  %source setup clang-tools-extra -q
+  %{__mv} clang-tools-extra-%{llvm_version}.src ${source_dir_llvm}/tools/clang/extra
+
+  %source setup compiler-rt -q
+  %{__mv} compiler-rt-%{llvm_version}.src ${source_dir_llvm}/projects/compiler-rt
+
+  %source setup libcxx -q
+  %{__mv} libcxx-%{llvm_version}.src ${source_dir_llvm}/projects/libcxx
+
+  %source setup libcxxabi -q
+  %{__mv} libcxxabi-%{llvm_version}.src ${source_dir_llvm}/projects/libcxxabi
+
+  %source setup libunwind -q
+  %{__mv} libunwind-%{llvm_version}.src ${source_dir_llvm}/projects/libunwind
+
+  %source setup lld -q
+  %{__mv} lld-%{llvm_version}.src ${source_dir_llvm}/tools/lld
+
+  %if %{defined with_llvm_lldb}
+   %source setup lldb -q
+   %{__mv} lldb-%{llvm_version}.src ${source_dir_llvm}/tools/lldb
+  %endif
+
+  %source setup openmp -q
+  %{__mv} openmp-%{llvm_version}.src ${source_dir_llvm}/tools/openmp
+
+  %patch setup llvm -p1
+
+  cd ${build_top}
+
+%build
+  build_top=$(pwd)
+
+  # SWIG will be built and installed into %{swig_prefix} if defined
+  # so add it as a path.
+  %if %{defined swig_prefix}
+    export PATH=%{swig_prefix}/bin:$PATH
+  %endif
+
+  %{build_directory}
+
+  mkdir -p ${build_dir}
+  cd ${build_dir}
+
+  %{__cmake} -Wno-dev \
+    -G "Unix Makefiles" \
+    -DCMAKE_BUILD_TYPE=Release \
+    -DCMAKE_INSTALL_PREFIX=%{_prefix} \
+    -DPACKAGE_VERSION="%{llvm_version} (%{llvm_version_message})" \
+    %{lldb_codesign_identity} \
+    ../${source_dir_llvm}
+
+  version_inc="tools/clang/include/clang/Basic/Version.inc"
+  %{__cat} ${version_inc} | \
+    sed -e 's/CLANG_VERSION_STRING "[0-9]*\.[0-9]*\.[0-9]*/& \(%{llvm_version_message}\)/g' \
+      > ${version_inc}.tmp
+  %{__mv} ${version_inc}.tmp ${version_inc}
+
+  %{__make} %{?_smp_mflags}
+
+  cd ${build_top}
+
+%install
+  build_top=$(pwd)
+
+  %{__rmdir} $SB_BUILD_ROOT
+
+  cd ${build_dir}
+  %{__make} DESTDIR=$SB_BUILD_ROOT install
+  cd ${build_top}
diff --git a/source-builder/config/swig-4-1.cfg b/source-builder/config/swig-4-1.cfg
new file mode 100644
index 0000000..6c10114
--- /dev/null
+++ b/source-builder/config/swig-4-1.cfg
@@ -0,0 +1,97 @@
+#
+# SWIG 4.xx Version 1.
+#
+# This configuration file configure's, make's and install's m4
+#
+# Warning: this package is only for bootstrapping within a build.
+#
+
+
+Name:      swig-%{swig_version}-%{_host}-%{release}
+Summary:   SWIG v%{swig_version} for host %{_host}
+Version:   %{swig_version}
+Release:   %{release}
+URL: 	   http://www.swig.org/
+
+#
+# Source
+#
+%source set swig --rsb-file=swig-rel-%{swig_version}.tar.gz https://github.com/swig/swig/archive/rel-%{swig_version}.tar.gz
+%source set pcre https://ftp.pcre.org/pub/pcre/pcre-%{pcre_version}.tar.bz2
+
+#
+# See if a special swig prefix is provided
+#
+%if %{defined swig_prefix}
+  %define _disable_collecting yes
+  %define _disable_packaging  yes
+  %define _disable_reporting  yes
+  %define _disable_installing yes
+%endif
+
+#
+# Prepare the source code.
+#
+%prep
+  build_top=$(pwd)
+
+  source_dir_swig="swig-rel-%{swig_version}"
+
+  %source setup swig -q -n swig-rel-%{swig_version}
+  %source download pcre
+
+  %patch setup swig -p1
+
+  # SWIG does not ship from github with it's generated files. We
+  # need to generate them.
+  # Add the path to the internal autoconf tools
+  SWIG_XPATH=$PATH
+  %if %{defined _internal_autotools_path}
+    export PATH=%{_internal_autotools_path}/bin:$PATH
+  %endif
+  ./autogen.sh
+  export PATH=$SWIG_XPATH
+
+  cd ${build_top}
+
+%build
+  build_top=$(pwd)
+
+  %{build_directory}
+
+  mkdir -p ${build_dir}
+  cd ${build_dir}
+
+  %{host_build_flags}
+
+  # build PCRE using the SWIG script as it is a static link
+  %{__cp} %{_sourcedir}/pcre-%{pcre_version}.tar.bz2 pcre-%{pcre_version}.tar.bz2
+  ../${source_dir_swig}/Tools/pcre-build.sh
+
+  %if %{defined swig_prefix}
+   prefix=%{swig_prefix}
+  %else
+   prefix=%{_prefix}
+  %endif
+
+  ../${source_dir_swig}/configure \
+    --host=%{_host} \
+    --prefix=${prefix}
+
+  %{__make} %{?_smp_mflags}
+
+  cd ${build_top}
+
+%install
+  build_top=$(pwd)
+
+  %{__rmdir} ${SB_BUILD_ROOT}
+
+  cd ${build_dir}
+  %if %{!defined swig_prefix}
+   %define destdir DESTDIR=${SB_BUILD_ROOT}
+  %else
+   %define destdir %{nil}
+  %endif
+  %{__make} %{destdir} install
+  cd ${build_top}