Forbid -Weverything
Use of -Weverything blocks build system changes and toolchain updates
on new warnings. Forbid it in the build system. Developers can
experiment with -Weverything on their module by adding it to their
Android.bp file and building with
m ANDROID_TEMPORARILY_ALLOW_WEVERYTHING=true
Fixes: 143713277
Test: manual
Change-Id: If154db328c52f687161e7a41e486d56a129850ac
diff --git a/cc/check.go b/cc/check.go
index 4e9e160..46328e9 100644
--- a/cc/check.go
+++ b/cc/check.go
@@ -38,6 +38,11 @@
ctx.PropertyErrorf(prop, "Illegal flag `%s`", flag)
} else if flag == "--coverage" {
ctx.PropertyErrorf(prop, "Bad flag: `%s`, use native_coverage instead", flag)
+ } else if flag == "-Weverything" {
+ if !ctx.Config().IsEnvTrue("ANDROID_TEMPORARILY_ALLOW_WEVERYTHING") {
+ ctx.PropertyErrorf(prop, "-Weverything is not allowed in Android.bp files. "+
+ "Build with `m ANDROID_TEMPORARILY_ALLOW_WEVERYTHING=true` to experiment locally with -Weverything.")
+ }
} else if strings.Contains(flag, " ") {
args := strings.Split(flag, " ")
if args[0] == "-include" {
