[gnome-continuous-yocto/gnomeostree-3.28-rocko: 7722/8267] goarch.bbclass: identify archs with Go dynamic linking support

[Emmanuele Bassi <ebassi src gnome org>]

commit e3c693eaeaa4d417fefa1cf1f0e4d7ebe780d9d8
Author: Matt Madison <matt@madison.systems>
Date:   Wed Sep 13 14:54:03 2017 -0300

    goarch.bbclass: identify archs with Go dynamic linking support
    
    Go only supports shared libraries for some architectures, so
    add a variable for use elsewhere that gets a non-null value
    only for those architectures.
    
    (From OE-Core rev: 2275712df152b73ce49b36bdf9f8d744c68c9c50)
    
    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>

 meta/classes/goarch.bbclass |   10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)
---
diff --git a/meta/classes/goarch.bbclass b/meta/classes/goarch.bbclass
index 0c22f80..bfba3c9 100644
--- a/meta/classes/goarch.bbclass
+++ b/meta/classes/goarch.bbclass
@@ -11,6 +11,16 @@ TARGET_GOARM = "${@go_map_arm(d.getVar('TARGET_ARCH'), d.getVar('TUNE_FEATURES')
 TARGET_GOTUPLE = "${TARGET_GOOS}_${TARGET_GOARCH}"
 GO_BUILD_BINDIR = "${@['bin/${HOST_GOTUPLE}','bin'][d.getVar('BUILD_GOTUPLE') == d.getVar('HOST_GOTUPLE')]}"
 
+# Go supports dynamic linking on a limited set of architectures.
+# See the supportsDynlink function in go/src/cmd/compile/internal/gc/main.go
+GO_DYNLINK = ""
+GO_DYNLINK_arm = "1"
+GO_DYNLINK_aarch64 = "1"
+GO_DYNLINK_x86 = "1"
+GO_DYNLINK_x86-64 = "1"
+GO_DYNLINK_powerpc64 = "1"
+GO_DYNLINK_class-native = ""
+
 # define here because everybody inherits this class
 #
 COMPATIBLE_HOST_linux-gnux32 = "null"