diff options
| author | 2018-03-14 14:44:29 -0700 | |
|---|---|---|
| committer | 2018-10-04 11:04:49 -0700 | |
| commit | 88a2a9d7a14b67e10525d93b0ee57d9dd6bc345a (patch) | |
| tree | a19af813a97be817a76072534139a77b16f3ad87 /runtime/interpreter/interpreter.h | |
| parent | fc7d33fc052d993eaa205337e6a805022d2cd822 (diff) | |
JVMTI PopFrame support
Implement support for the JVMTI can_pop_frames capability. This works
by marking shadow-frames with a bit that forces it to be popped or an
instruction to be retried. When a PopFrame is requested the plugin
will deoptimize the targeted thread and force the interpreter to deal
with the frame pop. If the can_pop_frames capability is enabled the
runtime will be forced to handle all exceptions through the
interpreter. This is required to support PopFrame during some
exception events.
Test: ./test.py --host
Test: ./art/tools/run-libjdwp-tests.sh --mode=host
Bug: 73255278
Bug: 111357976
Change-Id: I62d6b1f4ff387c794ba45093c3d6773aaf642067
Diffstat (limited to 'runtime/interpreter/interpreter.h')
| -rw-r--r-- | runtime/interpreter/interpreter.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/runtime/interpreter/interpreter.h b/runtime/interpreter/interpreter.h index 0d43b9090a..d7e69a6755 100644 --- a/runtime/interpreter/interpreter.h +++ b/runtime/interpreter/interpreter.h @@ -69,6 +69,12 @@ void CheckInterpreterAsmConstants(); void InitInterpreterTls(Thread* self); +// Returns true if the previous frame has the ForceRetryInstruction bit set. This is required for +// ForPopFrame to work correctly since that will cause the java function return with null/0 which +// might not be expected by the code being run. +bool PrevFrameWillRetry(Thread* self, const ShadowFrame& frame) + REQUIRES_SHARED(Locks::mutator_lock_); + } // namespace interpreter } // namespace art |