[9/9] selftest/multiconfig: test multiconfig multlib nativesdk gcc

diff --git a/meta/lib/oeqa/selftest/cases/multiconfig.py b/meta/lib/oeqa/selftest/cases/multiconfig.py
index f509cbf607..5757612ee3 100644
--- a/meta/lib/oeqa/selftest/cases/multiconfig.py
+++ b/meta/lib/oeqa/selftest/cases/multiconfig.py
@@ -7,7 +7,7 @@ 
 import os
 import textwrap
 from oeqa.selftest.case import OESelftestTestCase
-from oeqa.utils.commands import bitbake
+from oeqa.utils.commands import bitbake, runCmd, get_bb_vars
 
 class MultiConfig(OESelftestTestCase):
 
@@ -85,3 +85,140 @@  BBMULTICONFIG = "muslmc"
 
         # Build a core-image-minimal, only dry run needed to check config is present
         bitbake('mc:muslmc:bash -n')
+
+    def _run_multilib_nativesdk_gcc(self, environment_script_path, c_example_src):
+        def runCmdEnv(cmd):
+            cmd = '/bin/sh -c ". %s > /dev/null && %s"' % (
+                environment_script_path, cmd)
+            self.logger.debug(cmd)
+            result = runCmd(cmd)
+            self.logger.debug(f"ret: {result.status}, output {result.output}")
+            return result
+
+        runCmdEnv('which gcc')
+        self.logger.debug(f"c_example_src {c_example_src}")
+        result = runCmdEnv("gcc -m32 %s -o main-32 && ./main-32" % (c_example_src))
+        self.assertEqual("Hello world!", result.output, "Compile 32 bit program failed")
+        result = runCmdEnv("gcc -m64 %s -o main-64 && ./main-64" % (c_example_src))
+        self.assertEqual("Hello world!", result.output, "Compile 64 bit program failed")
+
+    def test_multiconfig_64bit_gcc_suport_32bit_multilib(self):
+        """
+        Build 64bit x86_64 buildtools-extended-tarball with package nativesdk-multiconfig-multlib-toolchain-packager-x86.
+        The recipe nativesdk-multiconfig-multlib-toolchain-packager trigger a x86 multiconfig
+        build to generate 32bit x86 buildtools-tarball which contains minimal 32bit toolchains
+        libraries and include files. The package nativesdk-multiconfig-multlib-toolchain-packager-x86
+        extract 32bit x86 buildtools-tarball and installed it to 64bit x86_64 nativesdk sysroot.
+        Then use 64bit gcc to compile 32bit and 64bit hello world program
+        """
+
+        config = """
+BBMULTICONFIG = "x86 x86_64"
+# Unify the same SDKPATHNATIVE for two multiconfig, otherwise
+# nativesdk relocation will fail
+SDKPATHNATIVE = "${SDKPATH}/sysroots/x86_64${SDK_VENDOR}-${SDK_OS}"
+"""
+        self.write_config(config)
+
+        x86config = """
+SDKMACHINE = "i686"
+TMPDIR = "${TOPDIR}/tmp-mc-x86"
+# Only install 32bit toolchains library and include files to buildtools-tarball
+TOOLCHAIN_HOST_TASK:pn-buildtools-tarball = "nativesdk-libgcc nativesdk-libgcc-dev nativesdk-glibc nativesdk-glibc-dev nativesdk-sdk-provides-dummy nativesdk-buildtools-perl-dummy"
+# Do not add relocate script to buildtools-tarball
+SDK_RELOCATE_AFTER_INSTALL:pn-buildtools-tarball = "0"
+"""
+        self.write_config(x86config, 'x86')
+
+        x86_64config = """
+SDKMACHINE = "x86_64"
+TMPDIR = "${TOPDIR}/tmp-mc-x86_64"
+TOOLCHAIN_HOST_TASK:append:pn-buildtools-extended-tarball = " nativesdk-multiconfig-multlib-toolchain-packager-x86"
+# lib64 in 64bit nativesdk sysroot, avoid conflict with 32bit lib
+baselib:class-nativesdk= "lib64"
+baselib:class-crosssdk= "lib64"
+libdir_nativesdk = "${prefix_nativesdk}/lib64"
+base_libdir_nativesdk = "/lib64"
+"""
+        self.write_config(x86_64config, 'x86_64')
+
+        bitbake('mc:x86_64:buildtools-extended-tarball')
+
+        needed_vars = ['TOPDIR', 'DISTRO_VERSION', 'COREBASE', 'SDK_VENDOR']
+        bb_vars = get_bb_vars(needed_vars)
+
+        c_example_src = os.path.join(
+            bb_vars['COREBASE'],
+            'meta-skeleton/recipes-skeleton/hello-single/files/helloworld.c'
+        )
+        sdk_name = 'x86_64-buildtools-extended-nativesdk-standalone-%s.sh' % bb_vars['DISTRO_VERSION']
+        sdk_path = os.path.join(bb_vars['TOPDIR'], 'tmp-mc-x86_64/deploy/sdk', sdk_name)
+        self.logger.debug(f"sdk_path {sdk_path}")
+        runCmd('sh %s -y -d "%s"' % (sdk_path, './sdk-test'))
+
+        environment_script = 'environment-setup-x86_64%s-linux' % (bb_vars['SDK_VENDOR'])
+        environment_script_path = os.path.join('./sdk-test', environment_script)
+
+        self._run_multilib_nativesdk_gcc(environment_script_path, c_example_src)
+
+    def test_multiconfig_32bit_gcc_suport_64bit_multilib(self):
+        """
+        Build 32bit i686 buildtools-extended-tarball with package nativesdk-multiconfig-multlib-toolchain-packager-x86_64.
+        The recipe nativesdk-multiconfig-multlib-toolchain-packager trigger a x86_64 multiconfig
+        build to generate 64bit x86_64 buildtools-tarball which contains minimal 64bit toolchains
+        libraries and include files. The package nativesdk-multiconfig-multlib-toolchain-packager-x86_64
+        extract 64bit x86_64 buildtools-tarball and installed it to 64bit x86_64 nativesdk sysroot.
+        Then use 64bit gcc to compile 32bit and 64bit hello world program
+        """
+
+        config = """
+BBMULTICONFIG = "x86 x86_64"
+# Unify the same SDKPATHNATIVE for two multiconfig, otherwise
+# nativesdk relocation will fail
+SDKPATHNATIVE = "${SDKPATH}/sysroots/i686${SDK_VENDOR}-${SDK_OS}"
+"""
+        self.write_config(config)
+
+        x86config = """
+SDKMACHINE = "i686"
+TMPDIR = "${TOPDIR}/tmp-mc-x86"
+TOOLCHAIN_HOST_TASK:append:pn-buildtools-extended-tarball = " nativesdk-multiconfig-multlib-toolchain-packager-x86_64"
+"""
+        self.write_config(x86config, 'x86')
+
+        x86_64config = """
+SDKMACHINE = "x86_64"
+TMPDIR = "${TOPDIR}/tmp-mc-x86_64"
+# Only install 64bit toolchains library and include files to buildtools-tarball
+TOOLCHAIN_HOST_TASK:pn-buildtools-tarball = "nativesdk-libgcc nativesdk-libgcc-dev nativesdk-glibc nativesdk-glibc-dev nativesdk-sdk-provides-dummy nativesdk-buildtools-perl-dummy"
+# Do not add relocate script to buildtools-tarball
+SDK_RELOCATE_AFTER_INSTALL:pn-buildtools-tarball = "0"
+
+# lib64 in 64bit nativesdk sysroot, avoid conflict with 32bit lib
+baselib:class-nativesdk= "lib64"
+baselib:class-crosssdk= "lib64"
+libdir_nativesdk = "${prefix_nativesdk}/lib64"
+base_libdir_nativesdk = "/lib64"
+"""
+        self.write_config(x86_64config, 'x86_64')
+
+        bitbake('mc:x86:buildtools-extended-tarball')
+
+        needed_vars = ['TOPDIR', 'DISTRO_VERSION', 'COREBASE', 'SDK_VENDOR']
+        bb_vars = get_bb_vars(needed_vars)
+
+        c_example_src = os.path.join(
+            bb_vars['COREBASE'],
+            'meta-skeleton/recipes-skeleton/hello-single/files/helloworld.c'
+        )
+        sdk_name = 'i686-buildtools-extended-nativesdk-standalone-%s.sh' % bb_vars['DISTRO_VERSION']
+
+        sdk_path = os.path.join(bb_vars['TOPDIR'], 'tmp-mc-x86/deploy/sdk', sdk_name)
+        self.logger.debug(f"sdk_path {sdk_path}")
+        runCmd('sh %s -y -d "%s"' % (sdk_path, './sdk-test'))
+
+        environment_script = 'environment-setup-i686%s-linux' % (bb_vars['SDK_VENDOR'])
+        environment_script_path = os.path.join('./sdk-test', environment_script)
+
+        self._run_multilib_nativesdk_gcc(environment_script_path, c_example_src)
+