# Copyright (C) 2017 Khem Raj <raj.khem@gmail.com>
# Released under the MIT license (see COPYING.MIT for the terms)

DESCRIPTION = "The LLVM Compiler Infrastructure"
HOMEPAGE = "http://llvm.org"
LICENSE = "NCSA"
SECTION = "devel"

LIC_FILES_CHKSUM = "file://LICENSE.TXT;md5=e825e017edc35cfd58e26116e5251771"

DEPENDS = "libffi libxml2 zlib ninja-native llvm-native"

RDEPENDS_${PN}_append_class-target = " ncurses-terminfo"

inherit perlnative pythonnative cmake pkgconfig

PROVIDES += "llvm${PV}"

LLVM_RELEASE = "${PV}"
LLVM_DIR = "llvm${LLVM_RELEASE}"

SRCREV = "5136df4d089a086b70d452160ad5451861269498"
PV = "6.0"
BRANCH = "release_60"
PATCH_VERSION = "1"
SRC_URI = "git://github.com/llvm-mirror/llvm.git;branch=${BRANCH};protocol=http \
           file://0001-llvm-TargetLibraryInfo-Undefine-libc-functions-if-th.patch \
           file://0002-llvm-allow-env-override-of-exe-path.patch \
          "
UPSTREAM_CHECK_COMMITS = "1"
S = "${WORKDIR}/git"

LLVM_INSTALL_DIR = "${WORKDIR}/llvm-install"
def get_llvm_arch(bb, d, arch_var):
    import re
    a = d.getVar(arch_var)
    if   re.match('(i.86|athlon|x86.64)$', a):         return 'X86'
    elif re.match('arm$', a):                          return 'ARM'
    elif re.match('armeb$', a):                        return 'ARM'
    elif re.match('aarch64$', a):                      return 'AArch64'
    elif re.match('aarch64_be$', a):                   return 'AArch64'
    elif re.match('mips(isa|)(32|64|)(r6|)(el|)$', a): return 'Mips'
    elif re.match('p(pc|owerpc)(|64)', a):             return 'PowerPC'
    else:
        raise bb.parse.SkipRecipe("Cannot map '%s' to a supported LLVM architecture" % a)

def get_llvm_host_arch(bb, d):
    return get_llvm_arch(bb, d, 'HOST_ARCH')

#
# Default to build all OE-Core supported target arches (user overridable).
#
LLVM_TARGETS ?= "AMDGPU;${@get_llvm_host_arch(bb, d)}"

ARM_INSTRUCTION_SET_armv5 = "arm"
ARM_INSTRUCTION_SET_armv4t = "arm"

EXTRA_OECMAKE += "-DLLVM_ENABLE_ASSERTIONS=OFF \
                  -DLLVM_ENABLE_EXPENSIVE_CHECKS=OFF \
                  -DLLVM_ENABLE_PIC=ON \
                  -DLLVM_BINDINGS_LIST='' \
                  -DLLVM_LINK_LLVM_DYLIB=ON \
                  -DLLVM_ENABLE_FFI=ON \
                  -DFFI_INCLUDE_DIR=$(pkg-config --variable=includedir libffi) \
                  -DLLVM_OPTIMIZED_TABLEGEN=ON \
                  -DLLVM_TARGETS_TO_BUILD='${LLVM_TARGETS}' \
                  -G Ninja"

EXTRA_OECMAKE_append_class-target = "\
                  -DCMAKE_CROSSCOMPILING:BOOL=ON \
                  -DLLVM_TABLEGEN=${STAGING_BINDIR_NATIVE}/llvm-tblgen${PV} \
                  -DLLVM_CONFIG_PATH=${STAGING_BINDIR_NATIVE}/llvm-config${PV} \
                 "

EXTRA_OECMAKE_append_class-nativesdk = "\
                  -DCMAKE_CROSSCOMPILING:BOOL=ON \
                  -DLLVM_TABLEGEN=${STAGING_BINDIR_NATIVE}/llvm-tblgen${PV} \
                  -DLLVM_CONFIG_PATH=${STAGING_BINDIR_NATIVE}/llvm-config${PV} \
                 "

do_configure_prepend() {
# Fix paths in llvm-config
	sed -i "s|sys::path::parent_path(CurrentPath))\.str()|sys::path::parent_path(sys::path::parent_path(CurrentPath))).str()|g" ${S}/tools/llvm-config/llvm-config.cpp
	sed -ri "s#/(bin|include|lib)(/?\")#/\1/${LLVM_DIR}\2#g" ${S}/tools/llvm-config/llvm-config.cpp
	sed -ri "s#lib/${LLVM_DIR}#${baselib}/${LLVM_DIR}#g" ${S}/tools/llvm-config/llvm-config.cpp
}

do_compile() {
	ninja -v ${PARALLEL_MAKE}
}

do_compile_class-native() {
	ninja -v ${PARALLEL_MAKE} llvm-config llvm-tblgen
}

do_install() {
	DESTDIR=${LLVM_INSTALL_DIR} ninja -v install
	install -D -m 0755 ${B}/bin/llvm-config ${D}${libdir}/${LLVM_DIR}/llvm-config

	install -d ${D}${bindir}/${LLVM_DIR}
	cp -r ${LLVM_INSTALL_DIR}${bindir}/* ${D}${bindir}/${LLVM_DIR}/

	install -d ${D}${includedir}/${LLVM_DIR}
	cp -r ${LLVM_INSTALL_DIR}${includedir}/* ${D}${includedir}/${LLVM_DIR}/

	install -d ${D}${libdir}/${LLVM_DIR}

	# The LLVM sources have "/lib" embedded and so we cannot completely rely on the ${libdir} variable
	if [ -d ${LLVM_INSTALL_DIR}${libdir}/ ]; then
		cp -r ${LLVM_INSTALL_DIR}${libdir}/* ${D}${libdir}/${LLVM_DIR}/
	elif [ -d ${LLVM_INSTALL_DIR}${prefix}/lib ]; then
		cp -r ${LLVM_INSTALL_DIR}${prefix}/lib/* ${D}${libdir}/${LLVM_DIR}/
	elif [ -d ${LLVM_INSTALL_DIR}${prefix}/lib64 ]; then
		cp -r ${LLVM_INSTALL_DIR}${prefix}/lib64/* ${D}${libdir}/${LLVM_DIR}/
	fi

	# Remove unnecessary cmake files
	rm -rf ${D}${libdir}/${LLVM_DIR}/cmake

	ln -s ${LLVM_DIR}/libLLVM-${PV}${SOLIBSDEV} ${D}${libdir}/libLLVM-${PV}${SOLIBSDEV}

	# We'll have to delete the libLLVM.so due to multiple reasons...
	rm -rf ${D}${libdir}/${LLVM_DIR}/libLLVM.so
	rm -rf ${D}${libdir}/${LLVM_DIR}/libLTO.so
}
do_install_class-native() {
	install -D -m 0755 ${B}/bin/llvm-tblgen ${D}${bindir}/llvm-tblgen${PV}
	install -D -m 0755 ${B}/bin/llvm-config ${D}${bindir}/llvm-config${PV}
	install -D -m 0755 ${B}/lib/libLLVM-${PV}.so ${D}${libdir}/libLLVM-${PV}.so
}

PACKAGES += "${PN}-bugpointpasses ${PN}-llvmhello"
ALLOW_EMPTY_${PN} = "1"
ALLOW_EMPTY_${PN}-staticdev = "1"
FILES_${PN} = ""
FILES_${PN}-staticdev = ""
FILES_${PN}-dbg = " \
    ${bindir}/${LLVM_DIR}/.debug \
    ${libdir}/${LLVM_DIR}/.debug/BugpointPasses.so \
    ${libdir}/${LLVM_DIR}/.debug/LLVMHello.so \
    ${libdir}/${LLVM_DIR}/.debug/libLTO.so* \
    ${libdir}/${LLVM_DIR}/.debug/llvm-config \
    /usr/src/debug \
"

FILES_${PN}-dev = " \
    ${bindir}/${LLVM_DIR} \
    ${includedir}/${LLVM_DIR} \
    ${libdir}/${LLVM_DIR}/llvm-config \
"

RRECOMMENDS_${PN}-dev += "${PN}-bugpointpasses ${PN}-llvmhello"

FILES_${PN}-bugpointpasses = "\
    ${libdir}/${LLVM_DIR}/BugpointPasses.so \
"
FILES_${PN} += "\
    ${libdir}/${LLVM_DIR}/libLTO.so.* \
"

FILES_${PN}-llvmhello = "\
    ${libdir}/${LLVM_DIR}/LLVMHello.so \
"

PACKAGES_DYNAMIC = "^libllvm${LLVM_RELEASE}-.*$"
NOAUTOPACKAGEDEBUG = "1"

INSANE_SKIP_${MLPREFIX}libllvm${LLVM_RELEASE}-llvm-${LLVM_RELEASE}.${PATCH_VERSION} += "dev-so"
INSANE_SKIP_${MLPREFIX}libllvm${LLVM_RELEASE}-llvm-${LLVM_RELEASE} += "dev-so"
INSANE_SKIP_${MLPREFIX}libllvm${LLVM_RELEASE}-llvm += "dev-so"

python llvm_populate_packages() {
    libdir = bb.data.expand('${libdir}', d)
    libllvm_libdir = bb.data.expand('${libdir}/${LLVM_DIR}', d)
    split_dbg_packages = do_split_packages(d, libllvm_libdir+'/.debug', '^lib(.*)\.so$', 'libllvm${LLVM_RELEASE}-%s-dbg', 'Split debug package for %s', allow_dirs=True)
    split_packages = do_split_packages(d, libdir, '^lib(.*)\.so$', 'libllvm${LLVM_RELEASE}-%s', 'Split package for %s', allow_dirs=True, allow_links=True, recursive=True)
    split_staticdev_packages = do_split_packages(d, libllvm_libdir, '^lib(.*)\.a$', 'libllvm${LLVM_RELEASE}-%s-staticdev', 'Split staticdev package for %s', allow_dirs=True)
    if split_packages:
        pn = d.getVar('PN')
        d.appendVar('RDEPENDS_' + pn, ' '+' '.join(split_packages))
        d.appendVar('RDEPENDS_' + pn + '-dbg', ' '+' '.join(split_dbg_packages))
        d.appendVar('RDEPENDS_' + pn + '-staticdev', ' '+' '.join(split_staticdev_packages))
}

PACKAGESPLITFUNCS_prepend = "llvm_populate_packages "

BBCLASSEXTEND = "native nativesdk"