Expand ClangExtraExternalCflags to non-Google vendor projects
Some of the warnings are too common to fix/opt-out for non-Google
projects.
Also in the change, minor clean up of duplicated code.
Test: presubmit
Bug: 139945549
Change-Id: Ic176ef1f17133405851a79592b6bef5ccb403bd9
diff --git a/Android.bp b/Android.bp
index 8d0c1ea..c73c3da 100644
--- a/Android.bp
+++ b/Android.bp
@@ -206,6 +206,7 @@
],
testSrcs: [
"cc/cc_test.go",
+ "cc/compiler_test.go",
"cc/gen_test.go",
"cc/genrule_test.go",
"cc/library_test.go",
diff --git a/cc/compiler.go b/cc/compiler.go
index bb40a5b..671861b 100644
--- a/cc/compiler.go
+++ b/cc/compiler.go
@@ -17,6 +17,7 @@
import (
"fmt"
"path/filepath"
+ "regexp"
"strconv"
"strings"
@@ -252,6 +253,7 @@
// per-target values, module type values, and per-module Blueprints properties
func (compiler *baseCompiler) compilerFlags(ctx ModuleContext, flags Flags, deps PathDeps) Flags {
tc := ctx.toolchain()
+ modulePath := android.PathForModuleSrc(ctx).String()
compiler.srcsBeforeGen = android.PathsForModuleSrcExcludes(ctx, compiler.Properties.Srcs, compiler.Properties.Exclude_srcs)
compiler.srcsBeforeGen = append(compiler.srcsBeforeGen, deps.GeneratedSources...)
@@ -289,8 +291,8 @@
if compiler.Properties.Include_build_directory == nil ||
*compiler.Properties.Include_build_directory {
- flags.Local.CommonFlags = append(flags.Local.CommonFlags, "-I"+android.PathForModuleSrc(ctx).String())
- flags.Local.YasmFlags = append(flags.Local.YasmFlags, "-I"+android.PathForModuleSrc(ctx).String())
+ flags.Local.CommonFlags = append(flags.Local.CommonFlags, "-I"+modulePath)
+ flags.Local.YasmFlags = append(flags.Local.YasmFlags, "-I"+modulePath)
}
if !(ctx.useSdk() || ctx.useVndk()) || ctx.Host() {
@@ -381,7 +383,7 @@
"${config.CommonClangGlobalCflags}",
fmt.Sprintf("${config.%sClangGlobalCflags}", hod))
- if strings.HasPrefix(android.PathForModuleSrc(ctx).String(), "external/") {
+ if isThirdParty(modulePath) {
flags.Global.CommonFlags = append([]string{"${config.ClangExternalCflags}"}, flags.Global.CommonFlags...)
}
@@ -438,7 +440,7 @@
// vendor/device specific things), we could extend this to be a ternary
// value.
strict := true
- if strings.HasPrefix(android.PathForModuleSrc(ctx).String(), "external/") {
+ if strings.HasPrefix(modulePath, "external/") {
strict = false
}
@@ -580,3 +582,28 @@
return TransformSourceToObj(ctx, subdir, srcFiles, flags, pathDeps, cFlagsDeps)
}
+
+var thirdPartyDirPrefixExceptions = []*regexp.Regexp{
+ regexp.MustCompile("^vendor/[^/]*google[^/]*/"),
+ regexp.MustCompile("^hardware/google/"),
+ regexp.MustCompile("^hardware/interfaces/"),
+ regexp.MustCompile("^hardware/libhardware[^/]*/"),
+ regexp.MustCompile("^hardware/ril/"),
+}
+
+func isThirdParty(path string) bool {
+ thirdPartyDirPrefixes := []string{"external/", "vendor/", "hardware/"}
+
+ for _, prefix := range thirdPartyDirPrefixes {
+ if strings.HasPrefix(path, prefix) {
+ for _, prefix := range thirdPartyDirPrefixExceptions {
+ if prefix.MatchString(path) {
+ return false
+ }
+ }
+ break
+ }
+ }
+
+ return true
+}
diff --git a/cc/compiler_test.go b/cc/compiler_test.go
new file mode 100644
index 0000000..c301388
--- /dev/null
+++ b/cc/compiler_test.go
@@ -0,0 +1,43 @@
+// Copyright 2019 Google Inc. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package cc
+
+import (
+ "testing"
+)
+
+func TestIsThirdParty(t *testing.T) {
+ shouldFail := []string{
+ "external/foo/",
+ "vendor/bar/",
+ "hardware/underwater_jaguar/",
+ }
+ shouldPass := []string{
+ "vendor/google/cts/",
+ "hardware/google/pixel",
+ "hardware/interfaces/camera",
+ "hardware/ril/supa_ril",
+ }
+ for _, path := range shouldFail {
+ if !isThirdParty(path) {
+ t.Errorf("Expected %s to be considered third party", path)
+ }
+ }
+ for _, path := range shouldPass {
+ if isThirdParty(path) {
+ t.Errorf("Expected %s to *not* be considered third party", path)
+ }
+ }
+}
diff --git a/cc/config/clang.go b/cc/config/clang.go
index 030a076..eddc341 100644
--- a/cc/config/clang.go
+++ b/cc/config/clang.go
@@ -163,8 +163,8 @@
"-Wno-tautological-type-limit-compare",
}, " "))
- // Extra cflags for projects under external/ directory to disable warnings that are infeasible
- // to fix in all the external projects and their upstream repos.
+ // Extra cflags for external third-party projects to disable warnings that
+ // are infeasible to fix in all the external projects and their upstream repos.
pctx.StaticVariable("ClangExtraExternalCflags", strings.Join([]string{
"-Wno-enum-compare",
"-Wno-enum-compare-switch",