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authorPeter Jensen <jensenp@google.com>2015-03-25 11:00:02 -0700
committerPeter Jensen <jensenp@google.com>2015-03-27 09:23:25 -0700
commitd024c06726c7e119ee76395611aa7cfe3b0a8b7e (patch)
treec825d21400bcca31d52e62c6a9f1d68de6a6ce50
parent8205cac070234acf9715c756593d5a5e297c6961 (diff)
downloaddalvik-d024c06726c7e119ee76395611aa7cfe3b0a8b7e.tar.gz
Fix potential dex index overflow in dx
Revert change to dex rotation algorithm made as part of commit: 845d9d0eed0f6556e11ee7f7204fda9c8dd41154 Bug: https://code.google.com/p/android/issues/detail?id=161887 Change-Id: I255aa52b74c921a78e77671ae6187157fef011e1 Signed-off-by: Peter Jensen <jensenp@google.com>
-rw-r--r--dx/src/com/android/dx/command/dexer/Main.java12
-rw-r--r--dx/tests/128-multidex-option-overflow/expected.txt1
2 files changed, 7 insertions, 6 deletions
diff --git a/dx/src/com/android/dx/command/dexer/Main.java b/dx/src/com/android/dx/command/dexer/Main.java
index 36b9e2059..b9c6ec952 100644
--- a/dx/src/com/android/dx/command/dexer/Main.java
+++ b/dx/src/com/android/dx/command/dexer/Main.java
@@ -1731,15 +1731,15 @@ public class Main {
// Calculate max number of indices this class will add to the
// dex file.
- // The constant pool contains at least one entry per method
- // (name and signature), at least one entry per field (name
- // and type), and at least per method/field reference (typed
- // method ref).
+ // The possibility of overloading means that we can't easily
+ // know how many constant are needed for declared methods and
+ // fields. We therefore make the simplifying assumption that
+ // all constants are external method or field references.
int constantPoolSize = cf.getConstantPool().size();
- maxMethodIdsInClass = constantPoolSize - cf.getFields().size()
+ maxMethodIdsInClass = constantPoolSize + cf.getMethods().size()
+ MAX_METHOD_ADDED_DURING_DEX_CREATION;
- maxFieldIdsInClass = constantPoolSize - cf.getMethods().size()
+ maxFieldIdsInClass = constantPoolSize + cf.getFields().size()
+ MAX_FIELD_ADDED_DURING_DEX_CREATION;
synchronized(dexRotationLock) {
diff --git a/dx/tests/128-multidex-option-overflow/expected.txt b/dx/tests/128-multidex-option-overflow/expected.txt
index ac448a63d..3d7a649b8 100644
--- a/dx/tests/128-multidex-option-overflow/expected.txt
+++ b/dx/tests/128-multidex-option-overflow/expected.txt
@@ -1,2 +1,3 @@
classes2.dex
+classes3.dex
classes.dex