[OE-core] [PATCH 2/8] staging.bbclass: staging_populate_sysroot_dir(): fix for multilib

[Robert Yang]

Fixed:
MACHINE = "qemux86-64"
require conf/multilib.conf
MULTILIBS = "multilib:lib32"
DEFAULTTUNE_virtclass-multilib-lib32 = "x86"

$ bitbake core-image-sato lib32-core-image-sato
$ bitbake build-sysroots

All lib32 manifests which had been built should be installed, but only a few
such as qemux86_64-lib32-base-files were installed (it was installed because
MACHINE_ARCH was still qemux86-64 when multilib), but others such as
x86-lib32-zlib were not installed, this was incorrect. For multilib builds,
fix-up overrides to prepend :virtclass-multilib- and then again append
additional multilib arches from the PACKAGE_EXTRA_ARCHS list if needed can fix
the problem.

Signed-off-by: Robert Yang <liezhi.yang at windriver.com>
---
 meta/classes/staging.bbclass | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/meta/classes/staging.bbclass b/meta/classes/staging.bbclass
index 3fcbc9f..c45ada4 100644
--- a/meta/classes/staging.bbclass
+++ b/meta/classes/staging.bbclass
@@ -190,8 +190,23 @@ def staging_populate_sysroot_dir(targetsysroot, nativesysroot, native, d):
         pkgarchs = ['${MACHINE_ARCH}']
         pkgarchs = pkgarchs + list(reversed(d.getVar("PACKAGE_EXTRA_ARCHS").split()))
         pkgarchs.append('allarch')
+
+        # Handle multilib archs
+        variants = d.getVar("MULTILIB_VARIANTS", True) or ""
+        for variant in variants.split():
+            localdata = bb.data.createCopy(d)
+            overrides = localdata.getVar("OVERRIDES", False) + ":virtclass-multilib-" + variant
+            localdata.setVar("OVERRIDES", overrides)
+            bb.data.update_data(localdata)
+            pkgarchs_ml = localdata.getVar('PACKAGE_EXTRA_ARCHS').split()
+            for arch in pkgarchs_ml:
+                if arch not in pkgarchs:
+                    pkgarchs.append(arch)
+
         targetdir = targetsysroot
 
+    bb.debug(1, 'pkgarchs: %s' % pkgarchs)
+
     bb.utils.mkdirhier(targetdir)
     for pkgarch in pkgarchs:
         for manifest in glob.glob(d.expand("${SSTATE_MANIFESTS}/manifest-%s-*.populate_sysroot" % pkgarch)):
-- 
2.7.4