diff options
| author | 2018-03-14 14:44:29 -0700 | |
|---|---|---|
| committer | 2018-10-04 11:04:49 -0700 | |
| commit | 88a2a9d7a14b67e10525d93b0ee57d9dd6bc345a (patch) | |
| tree | a19af813a97be817a76072534139a77b16f3ad87 /openjdkjvmti/art_jvmti.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 'openjdkjvmti/art_jvmti.h')
| -rw-r--r-- | openjdkjvmti/art_jvmti.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/openjdkjvmti/art_jvmti.h b/openjdkjvmti/art_jvmti.h index 82f3866c65..1218e3b9a7 100644 --- a/openjdkjvmti/art_jvmti.h +++ b/openjdkjvmti/art_jvmti.h @@ -249,7 +249,7 @@ const jvmtiCapabilities kPotentialCapabilities = { .can_get_owned_monitor_info = 1, .can_get_current_contended_monitor = 1, .can_get_monitor_info = 1, - .can_pop_frame = 0, + .can_pop_frame = 1, .can_redefine_classes = 1, .can_signal_thread = 1, .can_get_source_file_name = 1, @@ -291,6 +291,7 @@ const jvmtiCapabilities kPotentialCapabilities = { // can_retransform_classes: // can_redefine_any_class: // can_redefine_classes: +// can_pop_frame: // We need to ensure that inlined code is either not present or can always be deoptimized. This // is not guaranteed for non-debuggable processes since we might have inlined bootclasspath code // on a threads stack. @@ -303,7 +304,7 @@ const jvmtiCapabilities kNonDebuggableUnsupportedCapabilities = { .can_get_owned_monitor_info = 0, .can_get_current_contended_monitor = 0, .can_get_monitor_info = 0, - .can_pop_frame = 0, + .can_pop_frame = 1, .can_redefine_classes = 1, .can_signal_thread = 0, .can_get_source_file_name = 0, |