Use hashed subdir for soong_config modules
This is to differentiate soong intermediate directories for soong config
modules. This will help incremental build across different
devices.
Test result of building panther, building cheetah, and building panther
again:
Before this change
- build time: 02:57
- # of tasks: 31044
After this change
- build time: 01:48
- # of tasks: 1694
Build time includes build.ninja generating time (which is more than 1
minute), so the overriden artifacts become far fewer.
And "NINJA_ARGS='-n -d explain' m" only gave 4 "command line changed"
nodes.
Bug: 279362051
Test: see above
Change-Id: I4891cbe823ae21628465e5c6eb26a4837ccdd202
diff --git a/android/paths.go b/android/paths.go
index eaa6a8d..0f3d972 100644
--- a/android/paths.go
+++ b/android/paths.go
@@ -1475,7 +1475,11 @@
}
func pathForModuleOut(ctx ModuleOutPathContext) OutputPath {
- return PathForOutput(ctx, ".intermediates", ctx.ModuleDir(), ctx.ModuleName(), ctx.ModuleSubDir())
+ soongConfigHash := ""
+ if i, ok := ctx.(interface{ ModuleSoongConfigHash() string }); ok {
+ soongConfigHash = i.ModuleSoongConfigHash()
+ }
+ return PathForOutput(ctx, ".intermediates", ctx.ModuleDir(), ctx.ModuleName(), ctx.ModuleSubDir(), soongConfigHash)
}
// PathForModuleOut returns a Path representing the paths... under the module's