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Capture list of unused methods when shrinking in R8

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Use the -printusage flag in R8 to output a list of the unused
methods.  Some of the files can be large (2MB for DocumentsUI,
87MB for all of AOSP), so immediately zip them and remove the
originals.  The zipped files will be merged and disted.

Bug: 151857441
Test: m TARGET_BUILD_APPS=DocumentsUI dist
Change-Id: I780e84e80eba7fe4d4fa15fec0f461890afd900b
This commit is contained in:
Colin Cross
2020-08-14 17:39:29 -07:00
parent 133ebefb8d
commit cb6143a142
3 changed files with 52 additions and 21 deletions
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10
java/androidmk.go
View File

@@ -127,9 +127,8 @@ func (library *Library) AndroidMkEntries() []android.AndroidMkEntries {
entries.AddStrings("LOCAL_ADDITIONAL_CHECKED_MODULE", library.additionalCheckedModules.Strings()...)
}
if library.dexer.proguardDictionary.Valid() {
entries.SetPath("LOCAL_SOONG_PROGUARD_DICT", library.dexer.proguardDictionary.Path())
}
entries.SetOptionalPath("LOCAL_SOONG_PROGUARD_DICT", library.dexer.proguardDictionary)
entries.SetOptionalPath("LOCAL_SOONG_PROGUARD_USAGE_ZIP", library.dexer.proguardUsageZip)
entries.SetString("LOCAL_MODULE_STEM", library.Stem())
entries.SetOptionalPaths("LOCAL_SOONG_LINT_REPORTS", library.linter.reports)
@@ -332,9 +331,8 @@ func (app *AndroidApp) AndroidMkEntries() []android.AndroidMkEntries {
if app.jacocoReportClassesFile != nil {
entries.SetPath("LOCAL_SOONG_JACOCO_REPORT_CLASSES_JAR", app.jacocoReportClassesFile)
}
if app.dexer.proguardDictionary.Valid() {
entries.SetPath("LOCAL_SOONG_PROGUARD_DICT", app.dexer.proguardDictionary.Path())
}
entries.SetOptionalPath("LOCAL_SOONG_PROGUARD_DICT", app.dexer.proguardDictionary)
entries.SetOptionalPath("LOCAL_SOONG_PROGUARD_USAGE_ZIP", app.dexer.proguardUsageZip)
if app.Name() == "framework-res" {
entries.SetString("LOCAL_MODULE_PATH", "$(TARGET_OUT_JAVA_LIBRARIES)")