goarch: Move Go architecture mapping to a library

Other spaces uses the Go architecture definitions as their own (for
example, container arches are defined to be Go arches). To make it
easier for other places to use this mapping, move the code that does the
translation of OpenEmbedded arches to Go arches to a library.

(From OE-Core rev: 5e0267aeb7d9f575f270f6856a67ac62ce8a0f71)

Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit 3e86f72fc2e1cc2e5ea4b4499722d736941167ce)
Signed-off-by: Steve Sakoman <steve@sakoman.com>

meta/classes-recipe/goarch.bbclass

@@ -68,33 +68,10 @@ SECURITY_NOPIE_CFLAGS ??= ""
 CCACHE_DISABLE ?= "1"
 
 def go_map_arch(a, d):
-    import re
-    if re.match('i.86', a):
-        return '386'
-    elif a == 'x86_64':
-        return 'amd64'
-    elif re.match('arm.*', a):
-        return 'arm'
-    elif re.match('aarch64.*', a):
-        return 'arm64'
-    elif re.match('mips64el.*', a):
-        return 'mips64le'
-    elif re.match('mips64.*', a):
-        return 'mips64'
-    elif a == 'mips':
-        return 'mips'
-    elif a == 'mipsel':
-        return 'mipsle'
-    elif re.match('p(pc|owerpc)(64le)', a):
-        return 'ppc64le'
-    elif re.match('p(pc|owerpc)(64)', a):
-        return 'ppc64'
-    elif a == 'riscv64':
-        return 'riscv64'
-    elif a == 'loongarch64':
-        return 'loong64'
-    else:
+    arch = oe.go.map_arch(a)
+    if not arch:
         raise bb.parse.SkipRecipe("Unsupported CPU architecture: %s" % a)
+    return arch
 
 def go_map_arm(a, d):
     if a.startswith("arm"):

meta/lib/oe/__init__.py

@@ -9,4 +9,4 @@ __path__ = extend_path(__path__, __name__)
 
 BBIMPORTS = ["data", "path", "utils", "types", "package", "packagedata", \
              "packagegroup", "sstatesig", "lsb", "cachedpath", "license", \
-             "qa", "reproducible", "rust", "buildcfg"]
+             "qa", "reproducible", "rust", "buildcfg", "go"]

meta/lib/oe/go.py

@@ -0,0 +1,34 @@
+#
+# Copyright OpenEmbedded Contributors
+#
+# SPDX-License-Identifier: MIT
+#
+
+import re
+
+def map_arch(a):
+    if re.match('i.86', a):
+        return '386'
+    elif a == 'x86_64':
+        return 'amd64'
+    elif re.match('arm.*', a):
+        return 'arm'
+    elif re.match('aarch64.*', a):
+        return 'arm64'
+    elif re.match('mips64el.*', a):
+        return 'mips64le'
+    elif re.match('mips64.*', a):
+        return 'mips64'
+    elif a == 'mips':
+        return 'mips'
+    elif a == 'mipsel':
+        return 'mipsle'
+    elif re.match('p(pc|owerpc)(64le)', a):
+        return 'ppc64le'
+    elif re.match('p(pc|owerpc)(64)', a):
+        return 'ppc64'
+    elif a == 'riscv64':
+        return 'riscv64'
+    elif a == 'loongarch64':
+        return 'loong64'
+    return ''