Verify that ndk_headers headers are valid C.
https://github.com/android/ndk/issues/1920 recently reported a handful
of NDK headers where C-incompatible syntax had slipped in which wasn't
caught by review. This is also something that we often manually catch
in API review, but the manual inspection is, as can be seen from that
bug, error prone.
This check is pretty stupid. I've tried on other occasions to do a
more thorough check that would build each header using the same flags
as cc_library or similar would, but was never able to get that
working. This isn't as thorough, but that's maybe not such a bad
thing, since it saves on build time to only check on variant. In
practice the rudimentary approach I've taken here would have caught
every instance reported in the bug above, and probably all the other
cases that we'd previously caught in API review as well, so it's
definitely a step in the right direction if not good enough forever.
Bug: http://b/113359184
Test: m ndk
Change-Id: Id4e8cc511413acc61c4f625f25c3004d7439263c
diff --git a/cc/ndk_headers.go b/cc/ndk_headers.go
index 57a3b3a..e002931 100644
--- a/cc/ndk_headers.go
+++ b/cc/ndk_headers.go
@@ -18,6 +18,7 @@
"path/filepath"
"android/soong/android"
+
"github.com/google/blueprint"
)
@@ -44,7 +45,7 @@
}
// Returns the NDK base include path for use with sdk_version current. Usable with -I.
-func getCurrentIncludePath(ctx android.ModuleContext) android.OutputPath {
+func getCurrentIncludePath(ctx android.PathContext) android.OutputPath {
return getNdkSysrootBase(ctx).Join(ctx, "usr/include")
}
@@ -73,6 +74,13 @@
// Path to the NOTICE file associated with the headers.
License *string `android:"path"`
+
+ // Set to true if the headers installed by this module should skip
+ // verification. This step ensures that each header is self-contained (can
+ // be #included alone) and is valid C. This should not be disabled except in
+ // rare cases. Outside bionic and external, if you're using this option
+ // you've probably made a mistake.
+ Skip_verification *bool
}
type headerModule struct {
@@ -309,6 +317,13 @@
// Path to the NOTICE file associated with the headers.
License *string
+
+ // Set to true if the headers installed by this module should skip
+ // verification. This step ensures that each header is self-contained (can
+ // be #included alone) and is valid C. This should not be disabled except in
+ // rare cases. Outside bionic and external, if you're using this option
+ // you've probably made a mistake.
+ Skip_verification *bool
}
type preprocessedHeadersModule struct {