commit 3b6f440dbd066f03a737da6d292074f47b3fbc29
author Igor Murashkin <iam@google.com> Thu Feb 16 16:13:17 2017 -0800
committer Igor Murashkin <iam@google.com> Tue Feb 21 11:40:51 2017 -0800
tree af0da4bdea7ff689929c8e23e1eaf6361dfc3ee8
parent 5c19b373ae45ec6d67b41917af63cac8c3ebbe89

jni: Switch to @FastNative for all JNI functions. Deprecate !bang JNI.

Switches all (248) methods that previously used !bang JNI in art/libcore
to all use @FastNative.

Also deprecate !bang JNI since nothing in Android seems to (or should
be) using it anymore.

This measures to be a 3% startup time improvement in system_server.

Test: make test-art-host
Bug: 34955272
Change-Id: I0881f401c7660c79f275235362777bfa58241deb

runtime/native/java_lang_String.cc

diff --git a/runtime/native/java_lang_String.cc b/runtime/native/java_lang_String.cc
index 1357338..2e561ff 100644
--- a/runtime/native/java_lang_String.cc
+++ b/runtime/native/java_lang_String.cc
@@ -113,15 +113,15 @@
 }
 
 static JNINativeMethod gMethods[] = {
-  NATIVE_METHOD(String, charAt, "!(I)C"),
-  NATIVE_METHOD(String, compareTo, "!(Ljava/lang/String;)I"),
-  NATIVE_METHOD(String, concat, "!(Ljava/lang/String;)Ljava/lang/String;"),
-  NATIVE_METHOD(String, doReplace, "!(CC)Ljava/lang/String;"),
-  NATIVE_METHOD(String, fastIndexOf, "!(II)I"),
-  NATIVE_METHOD(String, fastSubstring, "!(II)Ljava/lang/String;"),
-  NATIVE_METHOD(String, getCharsNoCheck, "!(II[CI)V"),
-  NATIVE_METHOD(String, intern, "!()Ljava/lang/String;"),
-  NATIVE_METHOD(String, toCharArray, "!()[C"),
+  FAST_NATIVE_METHOD(String, charAt, "(I)C"),
+  FAST_NATIVE_METHOD(String, compareTo, "(Ljava/lang/String;)I"),
+  FAST_NATIVE_METHOD(String, concat, "(Ljava/lang/String;)Ljava/lang/String;"),
+  FAST_NATIVE_METHOD(String, doReplace, "(CC)Ljava/lang/String;"),
+  FAST_NATIVE_METHOD(String, fastIndexOf, "(II)I"),
+  FAST_NATIVE_METHOD(String, fastSubstring, "(II)Ljava/lang/String;"),
+  FAST_NATIVE_METHOD(String, getCharsNoCheck, "(II[CI)V"),
+  FAST_NATIVE_METHOD(String, intern, "()Ljava/lang/String;"),
+  FAST_NATIVE_METHOD(String, toCharArray, "()[C"),
 };
 
 void register_java_lang_String(JNIEnv* env) {