docker: needs go 1.3

The current version of docker (1.6.2) requires go 1.3

See go 1.4 sqlite issue:
https://github.com/docker/docker/issues/9649

Signed-off-by: Amy Fong <amy.fong@windriver.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>

3 files changed, 249 insertions, 0 deletions

diff --git a/recipes-devtools/go-cross/files/bsd_svid_source.patch b/recipes-devtools/go-cross/files/bsd_svid_source.patch
new file mode 100644
index 00000000..21e1d4cb
--- /dev/null
+++ b/recipes-devtools/go-cross/files/bsd_svid_source.patch
@@ -0,0 +1,37 @@
+golang-cross: do_compile fails cc1: all warnings being treated as errors
+
+glibc 2.20 deprecates _BSD_SOURCE and _SVID_SOURCE and emits an error
+message.  From patch 16632:
+        libc [PATCH] BZ #16632: Disable _SVID_SOURCE/_BSD_SOURCE warning
+        if _DEFAULT_SOURCE is defined
+
+Since we also need to support glibc before 2.20, from the release notes
+for glibc 2.20, the recommended fix is to define _DEFAULT_SOURCE
+
+(fixed upstream)
+https://groups.google.com/forum/#!topic/golang-codereviews/S4TARFCxu2k
+
+Signed-off-by: Amy Fong <amy.fong@windriver.com>
+---
+ include/u.h |   10 ++++++++++
+ 1 file changed, 10 insertions(+)
+
+--- a/include/u.h
++++ b/include/u.h
+@@ -38,6 +38,16 @@
+ #              define __MAKECONTEXT_V2_SOURCE 1
+ #      endif
+ #endif
++/**
++ * in glibc >= 2.20, _BSD_SOURCE and _SVID_SOURCE causes warning
++ * messages if _DEFAULT_SOURCE is not defined.
++ *
++ * From glibc 2.20 release notes, since this application needs _BSD_SOURCE
++ * and/or _SVID_SOURCE and we must support glibc < 2.19 and
++ * glibc >= 2.20, then define all 3 (_DEFAULT_SOURCE, _BSD_SOURCE,
++ * and _SVID_SOURCE) unconditionally
++ */
++#define _DEFAULT_SOURCE 1
+ #define _BSD_SOURCE 1
+ #define _NETBSD_SOURCE 1       /* NetBSD */
+ #define _SVID_SOURCE 1
diff --git a/recipes-devtools/go-cross/files/ccache.patch b/recipes-devtools/go-cross/files/ccache.patch
new file mode 100644
index 00000000..b7a64bf7
--- /dev/null
+++ b/recipes-devtools/go-cross/files/ccache.patch
@@ -0,0 +1,147 @@
+golang doesn't work with ccache. In the current state, a lot of parsing
+happens where it'll grab the first string in CC or LD and uses that for
+its builds. When ccache is enabled, it results in trying to do builds
+with just ccache. 
+
+The brokeness is seen when building with apps that uses cgo, like docker.
+To enable ccache to work, some string comparisons and changes to parsing
+had to be made.
+
+Signed-off-by: Amy Fong <amy.fong@windriver.com>
+
+Index: go/src/cmd/cgo/gcc.go
+===================================================================
+--- go.orig/src/cmd/cgo/gcc.go  2014-06-18 17:26:26.000000000 -0700
++++ go/src/cmd/cgo/gcc.go       2015-06-18 13:19:08.908877160 -0700
+@@ -712,6 +712,12 @@
+ func (p *Package) gccBaseCmd() []string {
+        // Use $CC if set, since that's what the build uses.
+        if ret := strings.Fields(os.Getenv("CC")); len(ret) > 0 {
++               if strings.Contains(ret[0], "ccache") {
++                       base_cc := ret[0] + " " + ret[1]
++                       os.Setenv("CCACHE_CC", ret[1])
++                       ret[1] = base_cc
++                       return ret[1:]
++               }
+                return ret
+        }
+        // Try $GCC if set, since that's what we used to use.
+Index: go/src/pkg/os/exec/lp_unix.go
+===================================================================
+--- go.orig/src/pkg/os/exec/lp_unix.go  2014-06-18 17:26:25.000000000 -0700
++++ go/src/pkg/os/exec/lp_unix.go       2015-06-18 13:19:29.464876331 -0700
+@@ -35,8 +35,14 @@
+        // (only bypass the path if file begins with / or ./ or ../)
+        // but that would not match all the Unix shells.
+ 
+-       if strings.Contains(file, "/") {
+-               err := findExecutable(file)
++       tmp := file
++       if strings.Contains(file, " ") {
++               exec_part := strings.Split(file, " ")[0]
++               tmp = exec_part
++       }
++
++       if strings.Contains(tmp, "/") {
++               err := findExecutable(tmp)
+                if err == nil {
+                        return file, nil
+                }
+@@ -51,7 +57,7 @@
+                        // Unix shell semantics: path element "" means "."
+                        dir = "."
+                }
+-               path := dir + "/" + file
++               path := dir + "/" + tmp
+                if err := findExecutable(path); err == nil {
+                        return path, nil
+                }
+Index: go/src/cmd/go/build.go
+===================================================================
+--- go.orig/src/cmd/go/build.go 2014-06-18 17:26:26.000000000 -0700
++++ go/src/cmd/go/build.go      2015-06-18 13:20:08.724874749 -0700
+@@ -2005,8 +2005,15 @@
+        // strings returned are "gcc", "-I", objdir (and cuts them off).
+ 
+        compiler := envList(envvar, defcmd)
+-       a := []string{compiler[0], "-I", objdir}
+-       a = append(a, compiler[1:]...)
++
++       a := []string{compiler[0]}
++       if strings.Contains(compiler[0], "ccache") {
++               a = append(a, compiler[1], "-I", objdir)
++               a = append(a, compiler[2:]...)
++       } else {
++               a = append(a, "-I", objdir)
++               a = append(a, compiler[1:]...)
++       }
+ 
+        // Definitely want -fPIC but on Windows gcc complains
+        // "-fPIC ignored for target (all code is position independent)"
+Index: go/src/cmd/ld/lib.c
+===================================================================
+--- go.orig/src/cmd/ld/lib.c    2014-06-18 17:26:27.000000000 -0700
++++ go/src/cmd/ld/lib.c 2015-06-18 13:18:39.564878343 -0700
+@@ -552,7 +552,7 @@
+ void
+ hostlink(void)
+ {
+-       char *p, **argv;
++       char *p, *q, **argv;
+        int c, i, w, n, argc, len;
+        Hostobj *h;
+        Biobuf *f;
+@@ -577,6 +577,19 @@
+        if(extld == nil)
+                extld = "gcc";
+        argv[argc++] = extld;
++
++       p = extldflags;
++       if (strstr(argv[0], "ccache") != NULL) {
++               while(p != nil) {
++                       while(*p == ' ')
++                               *p++ = '\0';
++                       if(*p == '\0')
++                               break;
++                       argv[argc++] = p;
++                       p = strchr(p + 1, ' ');
++                       break;
++               }
++       }
+        switch(thechar){
+        case '8':
+                argv[argc++] = "-m32";
+@@ -629,12 +642,12 @@
+                        errorexit();
+                }
+                Bseek(f, h->off, 0);
+-               p = smprint("%s/%06d.o", tmpdir, i);
+-               argv[argc++] = p;
+-               w = create(p, 1, 0775);
++               q = smprint("%s/%06d.o", tmpdir, i);
++               argv[argc++] = q;
++               w = create(q, 1, 0775);
+                if(w < 0) {
+                        ctxt->cursym = S;
+-                       diag("cannot create %s: %r", p);
++                       diag("cannot create %s: %r", q);
+                        errorexit();
+                }
+                len = h->len;
+@@ -646,7 +659,7 @@
+                }
+                if(close(w) < 0) {
+                        ctxt->cursym = S;
+-                       diag("cannot write %s: %r", p);
++                       diag("cannot write %s: %r", q);
+                        errorexit();
+                }
+                Bterm(f);
+@@ -656,7 +669,6 @@
+        for(i=0; i<nldflag; i++)
+                argv[argc++] = ldflag[i];
+ 
+-       p = extldflags;
+        while(p != nil) {
+                while(*p == ' ')
+                        *p++ = '\0';
diff --git a/recipes-devtools/go-cross/go-cross_1.3.bb b/recipes-devtools/go-cross/go-cross_1.3.bb
new file mode 100644
index 00000000..87231428
--- /dev/null
+++ b/recipes-devtools/go-cross/go-cross_1.3.bb
@@ -0,0 +1,65 @@
+DESCRIPTION = "\
+  Go is an open source programming language that makes it easy to build simple, \
+  reliable, and efficient software. \
+  "
+HOMEPAGE = "https://golang.org/"
+LICENSE = "BSD-3-Clause"
+
+SRC_URI = "http://golang.org/dl/go${PV}.src.tar.gz"
+
+S = "${WORKDIR}/go/"
+
+inherit cross
+
+LIC_FILES_CHKSUM = "file://LICENSE;md5=591778525c869cdde0ab5a1bf283cd81"
+SRC_URI[md5sum] = "4b66d7249554181c314f139ea78920b1"
+SRC_URI[sha256sum] = "eb983e6c5b2b9838f482c5442b1ac1856f610f2b21f3c123b3fedb48ffc35382"
+
+SRC_URI += "\
+        file://bsd_svid_source.patch \
+        file://ccache.patch \
+        "
+
+do_compile() {
+        ## Setting `$GOBIN` doesn't do any good, looks like it ends up copying binaries there.
+        export GOROOT_FINAL="${SYSROOT}${libdir}/go"
+
+        export GOHOSTOS="linux"
+        export GOOS="linux"
+
+        export GOARCH="${TARGET_ARCH}"
+        if [ "${TARGET_ARCH}" = "x86_64" ]; then
+                export GOARCH="amd64"
+        fi
+        if [ "${TARGET_ARCH}" = "arm" ]
+        then
+                if [ `echo ${TUNE_PKGARCH} | cut -c 1-7` = "cortexa" ]
+                then
+                        echo GOARM 7
+                        export GOARM="7"
+                fi
+        fi
+
+        export CGO_ENABLED="1"
+        ## TODO: consider setting GO_EXTLINK_ENABLED
+
+        export CC="${BUILD_CC}"
+        export CC_FOR_TARGET="${CC}"
+        export CXX_FOR_TARGET="${CXX}"
+        export GO_CCFLAGS="${HOST_CFLAGS}"
+        export GO_LDFLAGS="${HOST_LDFLAGS}"
+
+        cd src && ./make.bash
+}
+
+do_install() {
+        ## It should be okay to ignore `${WORKDIR}/go/bin/linux_arm`...
+        ## Also `gofmt` is not needed right now.
+        install -d "${D}${bindir}"
+        install -m 0755 "${WORKDIR}/go/bin/go" "${D}${bindir}"
+        install -d "${D}${libdir}/go"
+        ## TODO: use `install` instead of `cp`
+        for dir in include lib pkg src test
+        do cp -a "${WORKDIR}/go/${dir}" "${D}${libdir}/go/"
+        done
+}