go: split out go-runtime into separate recipe

Reorganize the Go toolchain build to split out
the Go standard runtime libraries into a separate
recipe.  This simplifies the extension to crosssdk
and cross-canadian builds.

* Adds a patch to the go build tool to prevent it
  from trying to rebuild anything in GOROOT, which
  is now resident in the target sysroot.

* 'go' bb and inc files are now for building the
  compiler for the target only.

* 'go-cross' bb and inc files are now just for
  the cross-compiler.

* Adds virtual/<prefix> PROVIDES for the compiler
  and runtime

* Removes testdata directories from the sysroot
  during staging, as they are unnecessary and
  can cause strip errors (some of the test files
  are ELF files).

* Re-enables pacakage QA checks, adding selective
  INSANE_SKIP settings where needed.

Signed-off-by: Matt Madison <matt@madison.systems>
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 53 insertions, 8 deletions

diff --git a/meta/recipes-devtools/go/go-cross.inc b/meta/recipes-devtools/go/go-cross.inc
index 1c2d9e3a3d..df3e4ea914 100644
--- a/meta/recipes-devtools/go/go-cross.inc
+++ b/meta/recipes-devtools/go/go-cross.inc
@@ -1,15 +1,60 @@
 inherit cross
 
-DEPENDS += "gcc-cross-${TARGET_ARCH}"
+PROVIDES = "virtual/${TARGET_PREFIX}go"
+DEPENDS += "go-native"
 
 PN = "go-cross-${TARGET_ARCH}"
 
-# Ignore how TARGET_ARCH is computed.
-TARGET_ARCH[vardepvalue] = "${TARGET_ARCH}"
-# Ignore target os libc for cross compiler
-#TARGET_OS[vardepexclude] = "LIBCEXTENSION"
-FILESEXTRAPATHS =. "${FILE_DIRNAME}/go-cross:"
+export GOHOSTOS = "${BUILD_GOOS}"
+export GOHOSTARCH = "${BUILD_GOARCH}"
+export GOOS = "${TARGET_GOOS}"
+export GOARCH = "${TARGET_GOARCH}"
+export GOARM = "${TARGET_GOARM}"
+export GOROOT_BOOTSTRAP = "${STAGING_LIBDIR_NATIVE}/go"
+export GOROOT_FINAL = "${libdir}/go"
+export CGO_ENABLED = "1"
+export CC_FOR_TARGET="${TARGET_PREFIX}gcc ${TARGET_CC_ARCH} --sysroot=${STAGING_DIR_TARGET}"
+export CXX_FOR_TARGET="${TARGET_PREFIX}g++ ${TARGET_CC_ARCH} --sysroot=${STAGING_DIR_TARGET}"
+CC = "${@d.getVar('BUILD_CC', True).strip()}"
 
-GOROOT_FINAL = "${libdir}/go"
-export GOROOT_FINAL
+do_configure[noexec] = "1"
 
+do_compile() {
+    export GOBIN="${B}/bin"
+    rm -rf ${GOBIN} ${B}/pkg
+    mkdir ${GOBIN}
+    cd src
+    ./make.bash --host-only
+    cd ${B}
+}
+
+
+make_wrapper() {
+    rm -f ${D}${bindir}/$2
+    cat <<END >${D}${bindir}/$2
+#!/bin/bash
+here=\`dirname \$0\`
+export GOARCH="${TARGET_GOARCH}"
+export GOOS="${TARGET_GOOS}"
+export GOARM="${TARGET_GOARM}"
+\$here/../../lib/${CROSS_TARGET_SYS_DIR}/go/bin/$1 "\$@"
+END
+    chmod +x ${D}${bindir}/$2
+}
+
+do_install() {
+    install -d ${D}${libdir}/go
+    cp --preserve=mode,timestamps -R ${B}/pkg ${D}${libdir}/go/
+    install -d ${D}${libdir}/go/src
+    (cd ${S}/src; for d in *; do \
+        [ ! -d $d ] || cp --preserve=mode,timestamps -R ${S}/src/$d ${D}${libdir}/go/src/; \
+    done)
+
+    install -d ${D}${bindir} ${D}${libdir}/go/bin
+    for f in ${B}/bin/*
+    do
+        base=`basename $f`
+        install -m755 $f ${D}${libdir}/go/bin
+        make_wrapper $base ${TARGET_PREFIX}$base
+    done
+}