DESCRIPTION = "The Low Level Virtual Machine"
HOMEPAGE = "http://llvm.org"
# 3-clause BSD-like
LICENSE = "NCSA"
LIC_FILES_CHKSUM = "file://LICENSE.TXT;md5=60fdd7739841f04a2ce2171a726be8f3"

DEPENDS = "libffi llvm-common"

SRC_URI = "http://llvm.org/releases/${PV}/llvm-${PV}.src.tar.gz"
SRC_URI_append_libc-uclibc = " file://arm_fenv_uclibc.patch "

SRC_URI[md5sum] = "71610289bbc819e3e15fdd562809a2d7"
SRC_URI[sha256sum] = "125090c4d26740f1d5e9838477c931ed7d9ad70d599ba265f46f3a42cb066343"

S = "${WORKDIR}/llvm-${PV}.src"

inherit autotools perlnative pythonnative

LLVM_ARCH = "${@get_llvm_arch(d)}"
LLVM_BUILD_DIR = "${WORKDIR}/llvm-${PV}.build"
LLVM_RELEASE = "3.2"

EXTRA_OECONF += "--disable-assertions \
                 --enable-debug-runtime \
                 --disable-expensive-checks \
                 --enable-bindings=none \
                 --enable-keep-symbols \
                 --enable-libffi \
                 --enable-optimized \
                 --enable-shared \
                 --enable-targets=${LLVM_ARCH}"
EXTRA_OEMAKE += "REQUIRES_RTTI=1"
FILES_${PN} += "${libdir}/lib*.so"
FILES_${PN}-dev += "${bindir} \
                    ${libdir}/BugpointPasses.so \
                    ${libdir}/LLVMHello.so"
FILES_SOLIBSDEV = ""

do_configure_prepend() {
        # Remove RPATHs
        sed -i 's:$(RPATH) -Wl,$(\(ToolDir\|LibDir\|ExmplDir\))::g' Makefile.rules

        # Drop "svn" suffix from version string
        sed -i 's/3\.2svn/3.2/g' configure

        # Fails to build unless using separate directory from source
        mkdir -p ${LLVM_BUILD_DIR}
        cd ${LLVM_BUILD_DIR}
}

do_compile() {
        cd ${LLVM_BUILD_DIR}
        oe_runmake CC=${BUILD_CC} CXX=${BUILD_CXX} cross-compile-build-tools
        oe_runmake
}

do_install() {
        cd ${LLVM_BUILD_DIR}
        autotools_do_install
        install -d ${D}${docdir}
        mv ${D}${prefix}/docs/* ${D}${docdir}
        rmdir ${D}${prefix}/docs
        mv ${D}${bindir}/${HOST_SYS}-llvm-config-host ${LLVM_BUILD_DIR}/llvm-config-host
}

SYSROOT_PREPROCESS_FUNCS += "llvm_sysroot_preprocess"

llvm_sysroot_preprocess() {
        install -d ${SYSROOT_DESTDIR}${bindir_crossscripts}
        install -m 0755 ${LLVM_BUILD_DIR}/llvm-config-host ${SYSROOT_DESTDIR}${bindir_crossscripts}/llvm-config${LLVM_RELEASE}
}

def get_llvm_arch(d):
    import bb;

    arch = bb.data.getVar('TARGET_ARCH', d, 1)

    if arch == "x86_64" or arch == "i486" or arch == "i586" or arch == "i686":
        arch = "x86"
    elif arch == "x86_64":
        arch = "x86_64"
    elif arch == "arm":
        arch = "arm"
    elif arch == "mipsel" or arch == "mips":
        arch = "mips"
    elif arch == "powerpc" or arch == "powerpc64":
        arch = "powerpc"
    else:
        bb.warn("%s does not support %s yet" % (bb.data.getVar('PN', d, 1), arch) );

    return arch