Merge "Make bpfs properties overridable"
diff --git a/android/androidmk.go b/android/androidmk.go
index f032f1b..9853d2c 100644
--- a/android/androidmk.go
+++ b/android/androidmk.go
@@ -571,7 +571,7 @@
 
 	if host {
 		makeOs := amod.Os().String()
-		if amod.Os() == Linux || amod.Os() == LinuxBionic {
+		if amod.Os() == Linux || amod.Os() == LinuxBionic || amod.Os() == LinuxMusl {
 			makeOs = "linux"
 		}
 		a.SetString("LOCAL_MODULE_HOST_OS", makeOs)
diff --git a/android/bazel.go b/android/bazel.go
index fa19e52..cfb237f 100644
--- a/android/bazel.go
+++ b/android/bazel.go
@@ -143,6 +143,7 @@
 		"build/bazel/tests":/* recursive = */ true,
 		"build/bazel/platforms":/* recursive = */ true,
 		"build/bazel/product_variables":/* recursive = */ true,
+		"build/bazel_common_rules":/* recursive = */ true,
 		"build/pesto":/* recursive = */ true,
 
 		// external/bazelbuild-rules_android/... is needed by mixed builds, otherwise mixed builds analysis fails
diff --git a/apex/androidmk.go b/apex/androidmk.go
index ebf0833..2f10904 100644
--- a/apex/androidmk.go
+++ b/apex/androidmk.go
@@ -212,7 +212,7 @@
 			}
 			if host {
 				makeOs := fi.module.Target().Os.String()
-				if fi.module.Target().Os == android.Linux || fi.module.Target().Os == android.LinuxBionic {
+				if fi.module.Target().Os == android.Linux || fi.module.Target().Os == android.LinuxBionic || fi.module.Target().Os == android.LinuxMusl {
 					makeOs = "linux"
 				}
 				fmt.Fprintln(w, "LOCAL_MODULE_HOST_OS :=", makeOs)
diff --git a/apex/apex_test.go b/apex/apex_test.go
index 67f7722..b9285ae 100644
--- a/apex/apex_test.go
+++ b/apex/apex_test.go
@@ -1874,6 +1874,45 @@
 	expectNoLink("libx", "shared_apex10000", "libz", "shared")
 }
 
+func TestApexMinSdkVersion_crtobjectInVendorApex(t *testing.T) {
+	ctx := testApex(t, `
+		apex {
+			name: "myapex",
+			key: "myapex.key",
+			native_shared_libs: ["mylib"],
+			updatable: false,
+			vendor: true,
+			min_sdk_version: "29",
+		}
+
+		apex_key {
+			name: "myapex.key",
+			public_key: "testkey.avbpubkey",
+			private_key: "testkey.pem",
+		}
+
+		cc_library {
+			name: "mylib",
+			vendor_available: true,
+			system_shared_libs: [],
+			stl: "none",
+			apex_available: [ "myapex" ],
+			min_sdk_version: "29",
+		}
+	`)
+
+	vendorVariant := "android_vendor.29_arm64_armv8-a"
+
+	// First check that the correct variant of crtbegin_so is used.
+	ldRule := ctx.ModuleForTests("mylib", vendorVariant+"_shared_apex29").Rule("ld")
+	crtBegin := names(ldRule.Args["crtBegin"])
+	ensureListContains(t, crtBegin, "out/soong/.intermediates/"+cc.DefaultCcCommonTestModulesDir+"crtbegin_so/"+vendorVariant+"_apex29/crtbegin_so.o")
+
+	// Ensure that the crtbegin_so used by the APEX is targeting 29
+	cflags := ctx.ModuleForTests("crtbegin_so", vendorVariant+"_apex29").Rule("cc").Args["cFlags"]
+	android.AssertStringDoesContain(t, "cflags", cflags, "-target aarch64-linux-android29")
+}
+
 func TestPlatformUsesLatestStubsFromApexes(t *testing.T) {
 	ctx := testApex(t, `
 		apex {
diff --git a/bp2build/Android.bp b/bp2build/Android.bp
index 78e3a74..b1ccc96 100644
--- a/bp2build/Android.bp
+++ b/bp2build/Android.bp
@@ -42,6 +42,7 @@
         "performance_test.go",
         "prebuilt_etc_conversion_test.go",
         "python_binary_conversion_test.go",
+        "python_library_conversion_test.go",
         "sh_conversion_test.go",
         "testing.go",
     ],
diff --git a/bp2build/python_library_conversion_test.go b/bp2build/python_library_conversion_test.go
new file mode 100644
index 0000000..b8659c6
--- /dev/null
+++ b/bp2build/python_library_conversion_test.go
@@ -0,0 +1,144 @@
+package bp2build
+
+import (
+	"fmt"
+	"testing"
+
+	"android/soong/android"
+	"android/soong/python"
+)
+
+// TODO(alexmarquez): Should be lifted into a generic Bp2Build file
+type PythonLibBp2Build func(ctx android.TopDownMutatorContext)
+
+func TestPythonLibrary(t *testing.T) {
+	testPythonLib(t, "python_library",
+		python.PythonLibraryFactory, python.PythonLibraryBp2Build)
+}
+
+func TestPythonLibraryHost(t *testing.T) {
+	testPythonLib(t, "python_library_host",
+		python.PythonLibraryHostFactory, python.PythonLibraryHostBp2Build)
+}
+
+func testPythonLib(t *testing.T, modType string,
+	factory android.ModuleFactory, mutator PythonLibBp2Build) {
+	t.Helper()
+	// Simple
+	runBp2BuildTestCaseSimple(t, bp2buildTestCase{
+		description:                        fmt.Sprintf("simple %s converts to a native py_library", modType),
+		moduleTypeUnderTest:                modType,
+		moduleTypeUnderTestFactory:         factory,
+		moduleTypeUnderTestBp2BuildMutator: mutator,
+		filesystem: map[string]string{
+			"a.py":           "",
+			"b/c.py":         "",
+			"b/d.py":         "",
+			"b/e.py":         "",
+			"files/data.txt": "",
+		},
+		blueprint: fmt.Sprintf(`%s {
+    name: "foo",
+    srcs: ["**/*.py"],
+    exclude_srcs: ["b/e.py"],
+    data: ["files/data.txt",],
+    bazel_module: { bp2build_available: true },
+}`, modType),
+		expectedBazelTargets: []string{`py_library(
+    name = "foo",
+    data = ["files/data.txt"],
+    srcs = [
+        "a.py",
+        "b/c.py",
+        "b/d.py",
+    ],
+    srcs_version = "PY3",
+)`,
+		},
+	})
+
+	// PY2
+	runBp2BuildTestCaseSimple(t, bp2buildTestCase{
+		description:                        fmt.Sprintf("py2 %s converts to a native py_library", modType),
+		moduleTypeUnderTest:                modType,
+		moduleTypeUnderTestFactory:         factory,
+		moduleTypeUnderTestBp2BuildMutator: mutator,
+		blueprint: fmt.Sprintf(`%s {
+    name: "foo",
+    srcs: ["a.py"],
+    version: {
+        py2: {
+            enabled: true,
+        },
+        py3: {
+            enabled: false,
+        },
+    },
+
+    bazel_module: { bp2build_available: true },
+}`, modType),
+		expectedBazelTargets: []string{`py_library(
+    name = "foo",
+    srcs = ["a.py"],
+    srcs_version = "PY2",
+)`,
+		},
+	})
+
+	// PY3
+	runBp2BuildTestCaseSimple(t, bp2buildTestCase{
+		description:                        fmt.Sprintf("py3 %s converts to a native py_library", modType),
+		moduleTypeUnderTest:                modType,
+		moduleTypeUnderTestFactory:         factory,
+		moduleTypeUnderTestBp2BuildMutator: mutator,
+		blueprint: fmt.Sprintf(`%s {
+    name: "foo",
+    srcs: ["a.py"],
+    version: {
+        py2: {
+            enabled: false,
+        },
+        py3: {
+            enabled: true,
+        },
+    },
+
+    bazel_module: { bp2build_available: true },
+}`, modType),
+		expectedBazelTargets: []string{`py_library(
+    name = "foo",
+    srcs = ["a.py"],
+    srcs_version = "PY3",
+)`,
+		},
+	})
+
+	// Both
+	runBp2BuildTestCaseSimple(t, bp2buildTestCase{
+		description:                        fmt.Sprintf("py2&3 %s converts to a native py_library", modType),
+		moduleTypeUnderTest:                modType,
+		moduleTypeUnderTestFactory:         factory,
+		moduleTypeUnderTestBp2BuildMutator: mutator,
+		blueprint: fmt.Sprintf(`%s {
+    name: "foo",
+    srcs: ["a.py"],
+    version: {
+        py2: {
+            enabled: true,
+        },
+        py3: {
+            enabled: true,
+        },
+    },
+
+    bazel_module: { bp2build_available: true },
+}`, modType),
+		expectedBazelTargets: []string{
+			// srcs_version is PY2ANDPY3 by default.
+			`py_library(
+    name = "foo",
+    srcs = ["a.py"],
+)`,
+		},
+	})
+}
diff --git a/cc/cc.go b/cc/cc.go
index 243f0a5..9c1f559 100644
--- a/cc/cc.go
+++ b/cc/cc.go
@@ -975,16 +975,17 @@
 	return String(c.Properties.Min_sdk_version)
 }
 
-func (c *Module) SplitPerApiLevel() bool {
-	if !c.canUseSdk() {
-		return false
-	}
+func (c *Module) isCrt() bool {
 	if linker, ok := c.linker.(*objectLinker); ok {
 		return linker.isCrt()
 	}
 	return false
 }
 
+func (c *Module) SplitPerApiLevel() bool {
+	return c.canUseSdk() && c.isCrt()
+}
+
 func (c *Module) AlwaysSdk() bool {
 	return c.Properties.AlwaysSdk || Bool(c.Properties.Sdk_variant_only)
 }
@@ -1446,12 +1447,20 @@
 	// create versioned variants for. For example, if min_sdk_version is 16, then sdk variant of
 	// the crt object has local variants of 16, 17, ..., up to the latest version. sdk_version
 	// and min_sdk_version properties of the variants are set to the corresponding version
-	// numbers. However, the platform (non-sdk) variant of the crt object is left untouched.
-	// min_sdk_version: 16 doesn't actually mean that the platform variant has to support such
-	// an old version. Since the variant is for the platform, it's preferred to target the
-	// latest version.
-	if ctx.mod.SplitPerApiLevel() && !ctx.isSdkVariant() {
-		ver = strconv.Itoa(android.FutureApiLevelInt)
+	// numbers. However, the non-sdk variant (for apex or platform) of the crt object is left
+	// untouched.  min_sdk_version: 16 doesn't actually mean that the non-sdk variant has to
+	// support such an old version. The version is set to the later version in case when the
+	// non-sdk variant is for the platform, or the min_sdk_version of the containing APEX if
+	// it's for an APEX.
+	if ctx.mod.isCrt() && !ctx.isSdkVariant() {
+		if ctx.isForPlatform() {
+			ver = strconv.Itoa(android.FutureApiLevelInt)
+		} else { // for apex
+			ver = ctx.apexSdkVersion().String()
+			if ver == "" { // in case when min_sdk_version was not set by the APEX
+				ver = ctx.sdkVersion()
+			}
+		}
 	}
 
 	// Also make sure that minSdkVersion is not greater than sdkVersion, if they are both numbers
diff --git a/cc/object_test.go b/cc/object_test.go
index 0e5508a..259a892 100644
--- a/cc/object_test.go
+++ b/cc/object_test.go
@@ -15,8 +15,9 @@
 package cc
 
 import (
-	"android/soong/android"
 	"testing"
+
+	"android/soong/android"
 )
 
 func TestMinSdkVersionsOfCrtObjects(t *testing.T) {
@@ -27,24 +28,23 @@
 			crt: true,
 			stl: "none",
 			min_sdk_version: "28",
-
+			vendor_available: true,
 		}`)
 
-	arch := "android_arm64_armv8-a"
-	for _, v := range []string{"", "28", "29", "30", "current"} {
-		var variant string
-		// platform variant
-		if v == "" {
-			variant = arch
-		} else {
-			variant = arch + "_sdk_" + v
-		}
-		cflags := ctx.ModuleForTests("crt_foo", variant).Rule("cc").Args["cFlags"]
-		vNum := v
-		if v == "current" || v == "" {
-			vNum = "10000"
-		}
-		expected := "-target aarch64-linux-android" + vNum + " "
+	variants := []struct {
+		variant string
+		num     string
+	}{
+		{"android_arm64_armv8-a", "10000"},
+		{"android_arm64_armv8-a_sdk_28", "28"},
+		{"android_arm64_armv8-a_sdk_29", "29"},
+		{"android_arm64_armv8-a_sdk_30", "30"},
+		{"android_arm64_armv8-a_sdk_current", "10000"},
+		{"android_vendor.29_arm64_armv8-a", "29"},
+	}
+	for _, v := range variants {
+		cflags := ctx.ModuleForTests("crt_foo", v.variant).Rule("cc").Args["cFlags"]
+		expected := "-target aarch64-linux-android" + v.num + " "
 		android.AssertStringDoesContain(t, "cflag", cflags, expected)
 	}
 }
diff --git a/cc/testing.go b/cc/testing.go
index 071f1ec..d0dca6b 100644
--- a/cc/testing.go
+++ b/cc/testing.go
@@ -375,26 +375,42 @@
 		cc_object {
 			name: "crtbegin_so",
 			defaults: ["crt_defaults"],
+			srcs: ["crtbegin_so.c"],
+			objs: ["crtbrand"],
 		}
 
 		cc_object {
 			name: "crtbegin_dynamic",
 			defaults: ["crt_defaults"],
+			srcs: ["crtbegin.c"],
+			objs: ["crtbrand"],
 		}
 
 		cc_object {
 			name: "crtbegin_static",
 			defaults: ["crt_defaults"],
+			srcs: ["crtbegin.c"],
+			objs: ["crtbrand"],
 		}
 
 		cc_object {
 			name: "crtend_so",
 			defaults: ["crt_defaults"],
+			srcs: ["crtend_so.c"],
+			objs: ["crtbrand"],
 		}
 
 		cc_object {
 			name: "crtend_android",
 			defaults: ["crt_defaults"],
+			srcs: ["crtend.c"],
+			objs: ["crtbrand"],
+		}
+
+		cc_object {
+			name: "crtbrand",
+			defaults: ["crt_defaults"],
+			srcs: ["crtbrand.c"],
 		}
 
 		cc_library {
@@ -585,6 +601,11 @@
 		"defaults/cc/common/libm.map.txt":           nil,
 		"defaults/cc/common/ndk_libandroid_support": nil,
 		"defaults/cc/common/ndk_libc++_shared":      nil,
+		"defaults/cc/common/crtbegin_so.c":          nil,
+		"defaults/cc/common/crtbegin.c":             nil,
+		"defaults/cc/common/crtend_so.c":            nil,
+		"defaults/cc/common/crtend.c":               nil,
+		"defaults/cc/common/crtbrand.c":             nil,
 	}.AddToFixture(),
 
 	// Place the default cc test modules that are common to all platforms in a location that will not
diff --git a/python/library.go b/python/library.go
index 9663b3c..45fc002 100644
--- a/python/library.go
+++ b/python/library.go
@@ -17,11 +17,17 @@
 // This file contains the module types for building Python library.
 
 import (
+	"fmt"
+
 	"android/soong/android"
+	"android/soong/bazel"
+	"github.com/google/blueprint/proptools"
 )
 
 func init() {
 	registerPythonLibraryComponents(android.InitRegistrationContext)
+	android.RegisterBp2BuildMutator("python_library_host", PythonLibraryHostBp2Build)
+	android.RegisterBp2BuildMutator("python_library", PythonLibraryBp2Build)
 }
 
 func registerPythonLibraryComponents(ctx android.RegistrationContext) {
@@ -32,11 +38,76 @@
 func PythonLibraryHostFactory() android.Module {
 	module := newModule(android.HostSupported, android.MultilibFirst)
 
+	android.InitBazelModule(module)
+
 	return module.init()
 }
 
+type bazelPythonLibraryAttributes struct {
+	Srcs         bazel.LabelListAttribute
+	Data         bazel.LabelListAttribute
+	Srcs_version string
+}
+
+func PythonLibraryHostBp2Build(ctx android.TopDownMutatorContext) {
+	pythonLibBp2Build(ctx, "python_library_host")
+}
+
+func PythonLibraryBp2Build(ctx android.TopDownMutatorContext) {
+	pythonLibBp2Build(ctx, "python_library")
+}
+
+func pythonLibBp2Build(ctx android.TopDownMutatorContext, modType string) {
+	m, ok := ctx.Module().(*Module)
+	if !ok || !m.ConvertWithBp2build(ctx) {
+		return
+	}
+
+	// a Module can be something other than a `modType`
+	if ctx.ModuleType() != modType {
+		return
+	}
+
+	// TODO(b/182306917): this doesn't fully handle all nested props versioned
+	// by the python version, which would have been handled by the version split
+	// mutator. This is sufficient for very simple python_library modules under
+	// Bionic.
+	py3Enabled := proptools.BoolDefault(m.properties.Version.Py3.Enabled, true)
+	py2Enabled := proptools.BoolDefault(m.properties.Version.Py2.Enabled, false)
+	var python_version string
+	if py2Enabled && !py3Enabled {
+		python_version = "PY2"
+	} else if !py2Enabled && py3Enabled {
+		python_version = "PY3"
+	} else if !py2Enabled && !py3Enabled {
+		panic(fmt.Errorf(
+			"error for '%s' module: bp2build's %s converter doesn't understand having "+
+				"neither py2 nor py3 enabled", m.Name(), modType))
+	} else {
+		// do nothing, since python_version defaults to PY2ANDPY3
+	}
+
+	srcs := android.BazelLabelForModuleSrcExcludes(ctx, m.properties.Srcs, m.properties.Exclude_srcs)
+	data := android.BazelLabelForModuleSrc(ctx, m.properties.Data)
+
+	attrs := &bazelPythonLibraryAttributes{
+		Srcs:         bazel.MakeLabelListAttribute(srcs),
+		Data:         bazel.MakeLabelListAttribute(data),
+		Srcs_version: python_version,
+	}
+
+	props := bazel.BazelTargetModuleProperties{
+		// Use the native py_library rule.
+		Rule_class: "py_library",
+	}
+
+	ctx.CreateBazelTargetModule(m.Name(), props, attrs)
+}
+
 func PythonLibraryFactory() android.Module {
 	module := newModule(android.HostAndDeviceSupported, android.MultilibBoth)
 
+	android.InitBazelModule(module)
+
 	return module.init()
 }
diff --git a/rust/config/allowed_list.go b/rust/config/allowed_list.go
index ee9be6e..63a8f04 100644
--- a/rust/config/allowed_list.go
+++ b/rust/config/allowed_list.go
@@ -13,6 +13,7 @@
 		"external/minijail",
 		"external/rust",
 		"external/selinux/libselinux",
+		"external/uwb",
 		"external/vm_tools/p9",
 		"frameworks/native/libs/binder/rust",
 		"frameworks/proto_logging/stats",
diff --git a/scripts/construct_context.py b/scripts/construct_context.py
index f0658ba..3f601c3 100755
--- a/scripts/construct_context.py
+++ b/scripts/construct_context.py
@@ -25,57 +25,78 @@
 
 
 def parse_args(args):
-  """Parse commandline arguments."""
-  parser = argparse.ArgumentParser()
-  parser.add_argument('--target-sdk-version', default='', dest='sdk',
-    help='specify target SDK version (as it appears in the manifest)')
-  parser.add_argument('--host-context-for-sdk', dest='host_contexts',
-    action='append', nargs=2, metavar=('sdk','context'),
-    help='specify context on host for a given SDK version or "any" version')
-  parser.add_argument('--target-context-for-sdk', dest='target_contexts',
-    action='append', nargs=2, metavar=('sdk','context'),
-    help='specify context on target for a given SDK version or "any" version')
-  return parser.parse_args(args)
+    """Parse commandline arguments."""
+    parser = argparse.ArgumentParser()
+    parser.add_argument(
+        '--target-sdk-version',
+        default='',
+        dest='sdk',
+        help='specify target SDK version (as it appears in the manifest)')
+    parser.add_argument(
+        '--host-context-for-sdk',
+        dest='host_contexts',
+        action='append',
+        nargs=2,
+        metavar=('sdk', 'context'),
+        help='specify context on host for a given SDK version or "any" version')
+    parser.add_argument(
+        '--target-context-for-sdk',
+        dest='target_contexts',
+        action='append',
+        nargs=2,
+        metavar=('sdk', 'context'),
+        help='specify context on target for a given SDK version or "any" '
+        'version'
+    )
+    return parser.parse_args(args)
+
 
 # Special keyword that means that the context should be added to class loader
 # context regardless of the target SDK version.
 any_sdk = 'any'
 
+
 # We assume that the order of context arguments passed to this script is
 # correct (matches the order computed by package manager). It is possible to
 # sort them here, but Soong needs to use deterministic order anyway, so it can
 # as well use the correct order.
 def construct_context(versioned_contexts, target_sdk):
-  context = []
-  for [sdk, ctx] in versioned_contexts:
-    if sdk == any_sdk or compare_version_gt(sdk, target_sdk):
-      context.append(ctx)
-  return context
+    context = []
+    for [sdk, ctx] in versioned_contexts:
+        if sdk == any_sdk or compare_version_gt(sdk, target_sdk):
+            context.append(ctx)
+    return context
+
 
 def construct_contexts(args):
-  host_context = construct_context(args.host_contexts, args.sdk)
-  target_context = construct_context(args.target_contexts, args.sdk)
-  context_sep = '#'
-  return ('class_loader_context_arg=--class-loader-context=PCL[]{%s} ; ' % context_sep.join(host_context) +
-    'stored_class_loader_context_arg=--stored-class-loader-context=PCL[]{%s}' % context_sep.join(target_context))
+    host_context = construct_context(args.host_contexts, args.sdk)
+    target_context = construct_context(args.target_contexts, args.sdk)
+    context_sep = '#'
+    return (
+        'class_loader_context_arg=--class-loader-context=PCL[]{%s} ; ' %
+        context_sep.join(host_context) +
+        'stored_class_loader_context_arg=--stored-class-loader-context=PCL[]{%s}' #pylint: disable=line-too-long
+        % context_sep.join(target_context))
+
 
 def main():
-  """Program entry point."""
-  try:
-    args = parse_args(sys.argv[1:])
-    if not args.sdk:
-      raise SystemExit('target sdk version is not set')
-    if not args.host_contexts:
-      args.host_contexts = []
-    if not args.target_contexts:
-      args.target_contexts = []
+    """Program entry point."""
+    try:
+        args = parse_args(sys.argv[1:])
+        if not args.sdk:
+            raise SystemExit('target sdk version is not set')
+        if not args.host_contexts:
+            args.host_contexts = []
+        if not args.target_contexts:
+            args.target_contexts = []
 
-    print(construct_contexts(args))
+        print(construct_contexts(args))
 
-  # pylint: disable=broad-except
-  except Exception as err:
-    print('error: ' + str(err), file=sys.stderr)
-    sys.exit(-1)
+    # pylint: disable=broad-except
+    except Exception as err:
+        print('error: ' + str(err), file=sys.stderr)
+        sys.exit(-1)
+
 
 if __name__ == '__main__':
-  main()
+    main()
diff --git a/scripts/construct_context_test.py b/scripts/construct_context_test.py
index 3b05f90..2ff5ac5 100755
--- a/scripts/construct_context_test.py
+++ b/scripts/construct_context_test.py
@@ -23,53 +23,63 @@
 
 sys.dont_write_bytecode = True
 
+
 def construct_contexts(arglist):
-  args = cc.parse_args(arglist)
-  return cc.construct_contexts(args)
+    args = cc.parse_args(arglist)
+    return cc.construct_contexts(args)
+
 
 contexts = [
-  '--host-context-for-sdk', '28', 'PCL[out/zdir/z.jar]',
-  '--target-context-for-sdk', '28', 'PCL[/system/z.jar]',
-  '--host-context-for-sdk', '29', 'PCL[out/xdir/x.jar]#PCL[out/ydir/y.jar]',
-  '--target-context-for-sdk', '29', 'PCL[/system/x.jar]#PCL[/product/y.jar]',
-  '--host-context-for-sdk', 'any', 'PCL[out/adir/a.jar]#PCL[out/bdir/b.jar]',
-  '--target-context-for-sdk', 'any', 'PCL[/system/a.jar]#PCL[/product/b.jar]',
+    '--host-context-for-sdk',
+    '28',
+    'PCL[out/zdir/z.jar]',
+    '--target-context-for-sdk',
+    '28',
+    'PCL[/system/z.jar]',
+    '--host-context-for-sdk',
+    '29',
+    'PCL[out/xdir/x.jar]#PCL[out/ydir/y.jar]',
+    '--target-context-for-sdk',
+    '29',
+    'PCL[/system/x.jar]#PCL[/product/y.jar]',
+    '--host-context-for-sdk',
+    'any',
+    'PCL[out/adir/a.jar]#PCL[out/bdir/b.jar]',
+    '--target-context-for-sdk',
+    'any',
+    'PCL[/system/a.jar]#PCL[/product/b.jar]',
 ]
 
+#pylint: disable=line-too-long
 class ConstructContextTest(unittest.TestCase):
-  def test_construct_context_28(self):
-    args = ['--target-sdk-version', '28'] + contexts
-    result = construct_contexts(args)
-    expect = ('class_loader_context_arg=--class-loader-context=PCL[]{PCL[out/xdir/x.jar]'
-      '#PCL[out/ydir/y.jar]'
-      '#PCL[out/adir/a.jar]'
-      '#PCL[out/bdir/b.jar]}'
-      ' ; '
-      'stored_class_loader_context_arg=--stored-class-loader-context=PCL[]{PCL[/system/x.jar]'
-      '#PCL[/product/y.jar]'
-      '#PCL[/system/a.jar]'
-      '#PCL[/product/b.jar]}')
-    self.assertEqual(result, expect)
 
-  def test_construct_context_29(self):
-    args = ['--target-sdk-version', '29'] + contexts
-    result = construct_contexts(args)
-    expect = ('class_loader_context_arg=--class-loader-context=PCL[]{PCL[out/adir/a.jar]'
-      '#PCL[out/bdir/b.jar]}'
-      ' ; '
-      'stored_class_loader_context_arg=--stored-class-loader-context=PCL[]{PCL[/system/a.jar]'
-      '#PCL[/product/b.jar]}')
-    self.assertEqual(result, expect)
+    def test_construct_context_28(self):
+        args = ['--target-sdk-version', '28'] + contexts
+        result = construct_contexts(args)
+        expect = (
+            'class_loader_context_arg=--class-loader-context=PCL[]{PCL[out/xdir/x.jar]#PCL[out/ydir/y.jar]#PCL[out/adir/a.jar]#PCL[out/bdir/b.jar]}'
+            ' ; '
+            'stored_class_loader_context_arg=--stored-class-loader-context=PCL[]{PCL[/system/x.jar]#PCL[/product/y.jar]#PCL[/system/a.jar]#PCL[/product/b.jar]}')
+        self.assertEqual(result, expect)
 
-  def test_construct_context_S(self):
-    args = ['--target-sdk-version', 'S'] + contexts
-    result = construct_contexts(args)
-    expect = ('class_loader_context_arg=--class-loader-context=PCL[]{PCL[out/adir/a.jar]'
-      '#PCL[out/bdir/b.jar]}'
-      ' ; '
-      'stored_class_loader_context_arg=--stored-class-loader-context=PCL[]{PCL[/system/a.jar]'
-      '#PCL[/product/b.jar]}')
-    self.assertEqual(result, expect)
+    def test_construct_context_29(self):
+        args = ['--target-sdk-version', '29'] + contexts
+        result = construct_contexts(args)
+        expect = (
+            'class_loader_context_arg=--class-loader-context=PCL[]{PCL[out/adir/a.jar]#PCL[out/bdir/b.jar]}'
+            ' ; '
+            'stored_class_loader_context_arg=--stored-class-loader-context=PCL[]{PCL[/system/a.jar]#PCL[/product/b.jar]}')
+        self.assertEqual(result, expect)
+
+    def test_construct_context_S(self):
+        args = ['--target-sdk-version', 'S'] + contexts
+        result = construct_contexts(args)
+        expect = (
+            'class_loader_context_arg=--class-loader-context=PCL[]{PCL[out/adir/a.jar]#PCL[out/bdir/b.jar]}'
+            ' ; '
+            'stored_class_loader_context_arg=--stored-class-loader-context=PCL[]{PCL[/system/a.jar]#PCL[/product/b.jar]}')
+        self.assertEqual(result, expect)
+#pylint: enable=line-too-long
 
 if __name__ == '__main__':
-  unittest.main(verbosity=2)
+    unittest.main(verbosity=2)
diff --git a/scripts/conv_linker_config.py b/scripts/conv_linker_config.py
index 92f79da..e46efe4 100644
--- a/scripts/conv_linker_config.py
+++ b/scripts/conv_linker_config.py
@@ -20,178 +20,181 @@
 import json
 import os
 
-import linker_config_pb2
+import linker_config_pb2 #pylint: disable=import-error
 from google.protobuf.descriptor import FieldDescriptor
 from google.protobuf.json_format import ParseDict
 from google.protobuf.text_format import MessageToString
 
 
 def Proto(args):
-  json_content = ''
-  with open(args.source) as f:
-    for line in f:
-      if not line.lstrip().startswith('//'):
-        json_content += line
-  obj = json.loads(json_content, object_pairs_hook=collections.OrderedDict)
-  pb = ParseDict(obj, linker_config_pb2.LinkerConfig())
-  with open(args.output, 'wb') as f:
-    f.write(pb.SerializeToString())
+    json_content = ''
+    with open(args.source) as f:
+        for line in f:
+            if not line.lstrip().startswith('//'):
+                json_content += line
+    obj = json.loads(json_content, object_pairs_hook=collections.OrderedDict)
+    pb = ParseDict(obj, linker_config_pb2.LinkerConfig())
+    with open(args.output, 'wb') as f:
+        f.write(pb.SerializeToString())
 
 
 def Print(args):
-  with open(args.source, 'rb') as f:
-    pb = linker_config_pb2.LinkerConfig()
-    pb.ParseFromString(f.read())
-  print(MessageToString(pb))
+    with open(args.source, 'rb') as f:
+        pb = linker_config_pb2.LinkerConfig()
+        pb.ParseFromString(f.read())
+    print(MessageToString(pb))
 
 
 def SystemProvide(args):
-  pb = linker_config_pb2.LinkerConfig()
-  with open(args.source, 'rb') as f:
-    pb.ParseFromString(f.read())
-  libraries = args.value.split()
+    pb = linker_config_pb2.LinkerConfig()
+    with open(args.source, 'rb') as f:
+        pb.ParseFromString(f.read())
+    libraries = args.value.split()
 
-  def IsInLibPath(lib_name):
-    lib_path = os.path.join(args.system, 'lib', lib_name)
-    lib64_path = os.path.join(args.system, 'lib64', lib_name)
-    return os.path.exists(lib_path) or os.path.islink(lib_path) or os.path.exists(lib64_path) or os.path.islink(lib64_path)
+    def IsInLibPath(lib_name):
+        lib_path = os.path.join(args.system, 'lib', lib_name)
+        lib64_path = os.path.join(args.system, 'lib64', lib_name)
+        return os.path.exists(lib_path) or os.path.islink(
+            lib_path) or os.path.exists(lib64_path) or os.path.islink(
+                lib64_path)
 
-  installed_libraries = list(filter(IsInLibPath, libraries))
-  for item in installed_libraries:
-    if item not in getattr(pb, 'provideLibs'):
-      getattr(pb, 'provideLibs').append(item)
-  with open(args.output, 'wb') as f:
-    f.write(pb.SerializeToString())
+    installed_libraries = [lib for lib in libraries if IsInLibPath(lib)]
+    for item in installed_libraries:
+        if item not in getattr(pb, 'provideLibs'):
+            getattr(pb, 'provideLibs').append(item)
+    with open(args.output, 'wb') as f:
+        f.write(pb.SerializeToString())
 
 
 def Append(args):
-  pb = linker_config_pb2.LinkerConfig()
-  with open(args.source, 'rb') as f:
-    pb.ParseFromString(f.read())
+    pb = linker_config_pb2.LinkerConfig()
+    with open(args.source, 'rb') as f:
+        pb.ParseFromString(f.read())
 
-  if getattr(type(pb), args.key).DESCRIPTOR.label == FieldDescriptor.LABEL_REPEATED:
-    for value in args.value.split():
-      getattr(pb, args.key).append(value)
-  else:
-    setattr(pb, args.key, args.value)
+    if getattr(type(pb),
+               args.key).DESCRIPTOR.label == FieldDescriptor.LABEL_REPEATED:
+        for value in args.value.split():
+            getattr(pb, args.key).append(value)
+    else:
+        setattr(pb, args.key, args.value)
 
-  with open(args.output, 'wb') as f:
-    f.write(pb.SerializeToString())
+    with open(args.output, 'wb') as f:
+        f.write(pb.SerializeToString())
+
 
 def Merge(args):
-  pb = linker_config_pb2.LinkerConfig()
-  for other in args.input:
-    with open(other, 'rb') as f:
-      pb.MergeFromString(f.read())
+    pb = linker_config_pb2.LinkerConfig()
+    for other in args.input:
+        with open(other, 'rb') as f:
+            pb.MergeFromString(f.read())
 
-  with open(args.out, 'wb') as f:
-    f.write(pb.SerializeToString())
+    with open(args.out, 'wb') as f:
+        f.write(pb.SerializeToString())
+
 
 def GetArgParser():
-  parser = argparse.ArgumentParser()
-  subparsers = parser.add_subparsers()
+    parser = argparse.ArgumentParser()
+    subparsers = parser.add_subparsers()
 
-  parser_proto = subparsers.add_parser(
-      'proto', help='Convert the input JSON configuration file into protobuf.')
-  parser_proto.add_argument(
-      '-s',
-      '--source',
-      required=True,
-      type=str,
-      help='Source linker configuration file in JSON.')
-  parser_proto.add_argument(
-      '-o',
-      '--output',
-      required=True,
-      type=str,
-      help='Target path to create protobuf file.')
-  parser_proto.set_defaults(func=Proto)
+    parser_proto = subparsers.add_parser(
+        'proto',
+        help='Convert the input JSON configuration file into protobuf.')
+    parser_proto.add_argument(
+        '-s',
+        '--source',
+        required=True,
+        type=str,
+        help='Source linker configuration file in JSON.')
+    parser_proto.add_argument(
+        '-o',
+        '--output',
+        required=True,
+        type=str,
+        help='Target path to create protobuf file.')
+    parser_proto.set_defaults(func=Proto)
 
-  print_proto = subparsers.add_parser(
-      'print', help='Print configuration in human-readable text format.')
-  print_proto.add_argument(
-      '-s',
-      '--source',
-      required=True,
-      type=str,
-      help='Source linker configuration file in protobuf.')
-  print_proto.set_defaults(func=Print)
+    print_proto = subparsers.add_parser(
+        'print', help='Print configuration in human-readable text format.')
+    print_proto.add_argument(
+        '-s',
+        '--source',
+        required=True,
+        type=str,
+        help='Source linker configuration file in protobuf.')
+    print_proto.set_defaults(func=Print)
 
-  system_provide_libs = subparsers.add_parser(
-      'systemprovide', help='Append system provide libraries into the configuration.')
-  system_provide_libs.add_argument(
-      '-s',
-      '--source',
-      required=True,
-      type=str,
-      help='Source linker configuration file in protobuf.')
-  system_provide_libs.add_argument(
-      '-o',
-      '--output',
-      required=True,
-      type=str,
-      help='Target linker configuration file to write in protobuf.')
-  system_provide_libs.add_argument(
-      '--value',
-      required=True,
-      type=str,
-      help='Values of the libraries to append. If there are more than one it should be separated by empty space')
-  system_provide_libs.add_argument(
-      '--system',
-      required=True,
-      type=str,
-      help='Path of the system image.')
-  system_provide_libs.set_defaults(func=SystemProvide)
+    system_provide_libs = subparsers.add_parser(
+        'systemprovide',
+        help='Append system provide libraries into the configuration.')
+    system_provide_libs.add_argument(
+        '-s',
+        '--source',
+        required=True,
+        type=str,
+        help='Source linker configuration file in protobuf.')
+    system_provide_libs.add_argument(
+        '-o',
+        '--output',
+        required=True,
+        type=str,
+        help='Target linker configuration file to write in protobuf.')
+    system_provide_libs.add_argument(
+        '--value',
+        required=True,
+        type=str,
+        help='Values of the libraries to append. If there are more than one '
+        'it should be separated by empty space'
+    )
+    system_provide_libs.add_argument(
+        '--system', required=True, type=str, help='Path of the system image.')
+    system_provide_libs.set_defaults(func=SystemProvide)
 
-  append = subparsers.add_parser(
-      'append', help='Append value(s) to given key.')
-  append.add_argument(
-      '-s',
-      '--source',
-      required=True,
-      type=str,
-      help='Source linker configuration file in protobuf.')
-  append.add_argument(
-      '-o',
-      '--output',
-      required=True,
-      type=str,
-      help='Target linker configuration file to write in protobuf.')
-  append.add_argument(
-      '--key',
-      required=True,
-      type=str,
-      help='.')
-  append.add_argument(
-      '--value',
-      required=True,
-      type=str,
-      help='Values of the libraries to append. If there are more than one it should be separated by empty space')
-  append.set_defaults(func=Append)
+    append = subparsers.add_parser(
+        'append', help='Append value(s) to given key.')
+    append.add_argument(
+        '-s',
+        '--source',
+        required=True,
+        type=str,
+        help='Source linker configuration file in protobuf.')
+    append.add_argument(
+        '-o',
+        '--output',
+        required=True,
+        type=str,
+        help='Target linker configuration file to write in protobuf.')
+    append.add_argument('--key', required=True, type=str, help='.')
+    append.add_argument(
+        '--value',
+        required=True,
+        type=str,
+        help='Values of the libraries to append. If there are more than one'
+        'it should be separated by empty space'
+    )
+    append.set_defaults(func=Append)
 
-  append = subparsers.add_parser(
-      'merge', help='Merge configurations')
-  append.add_argument(
-      '-o',
-      '--out',
-      required=True,
-      type=str,
-      help='Ouptut linker configuration file to write in protobuf.')
-  append.add_argument(
-      '-i',
-      '--input',
-      nargs='+',
-      type=str,
-      help='Linker configuration files to merge.')
-  append.set_defaults(func=Merge)
+    append = subparsers.add_parser('merge', help='Merge configurations')
+    append.add_argument(
+        '-o',
+        '--out',
+        required=True,
+        type=str,
+        help='Output linker configuration file to write in protobuf.')
+    append.add_argument(
+        '-i',
+        '--input',
+        nargs='+',
+        type=str,
+        help='Linker configuration files to merge.')
+    append.set_defaults(func=Merge)
 
-  return parser
+    return parser
 
 
 def main():
-  args = GetArgParser().parse_args()
-  args.func(args)
+    args = GetArgParser().parse_args()
+    args.func(args)
 
 
 if __name__ == '__main__':
-  main()
+    main()