diff options
Diffstat (limited to 'openjdkjvmti/art_jvmti.h')
| -rw-r--r-- | openjdkjvmti/art_jvmti.h | 68 |
1 files changed, 67 insertions, 1 deletions
diff --git a/openjdkjvmti/art_jvmti.h b/openjdkjvmti/art_jvmti.h index 2a8c2e91df..73cc601e3e 100644 --- a/openjdkjvmti/art_jvmti.h +++ b/openjdkjvmti/art_jvmti.h @@ -62,10 +62,22 @@ namespace openjdkjvmti { class ObjectTagTable; +// A special version that we use to identify special tooling interface versions which mostly matches +// the jvmti spec but everything is best effort. This is used to implement the userdebug +// 'debug-anything' behavior. +// +// This is the value 0x70010200. +static constexpr jint kArtTiVersion = JVMTI_VERSION_1_2 | 0x40000000; + // A structure that is a jvmtiEnv with additional information for the runtime. struct ArtJvmTiEnv : public jvmtiEnv { art::JavaVMExt* art_vm; void* local_data; + + // The ti_version we are compatible with. This is only for giving the correct value for GetVersion + // when running on a userdebug/eng device. + jint ti_version; + jvmtiCapabilities capabilities; EventMasks event_masks; @@ -90,7 +102,7 @@ struct ArtJvmTiEnv : public jvmtiEnv { // RW lock to protect access to all of the event data. art::ReaderWriterMutex event_info_mutex_ DEFAULT_MUTEX_ACQUIRED_AFTER; - ArtJvmTiEnv(art::JavaVMExt* runtime, EventHandler* event_handler); + ArtJvmTiEnv(art::JavaVMExt* runtime, EventHandler* event_handler, jint ti_version); static ArtJvmTiEnv* AsArtJvmTiEnv(jvmtiEnv* env) { return art::down_cast<ArtJvmTiEnv*>(env); @@ -272,6 +284,60 @@ const jvmtiCapabilities kPotentialCapabilities = { .can_generate_resource_exhaustion_threads_events = 0, }; +// These are capabilities that are disabled if we were loaded without being debuggable. +// +// This includes the following capabilities: +// can_retransform_any_class: +// can_retransform_classes: +// can_redefine_any_class: +// can_redefine_classes: +// 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. +const jvmtiCapabilities kNonDebuggableUnsupportedCapabilities = { + .can_tag_objects = 0, + .can_generate_field_modification_events = 0, + .can_generate_field_access_events = 0, + .can_get_bytecodes = 0, + .can_get_synthetic_attribute = 0, + .can_get_owned_monitor_info = 0, + .can_get_current_contended_monitor = 0, + .can_get_monitor_info = 0, + .can_pop_frame = 0, + .can_redefine_classes = 1, + .can_signal_thread = 0, + .can_get_source_file_name = 0, + .can_get_line_numbers = 0, + .can_get_source_debug_extension = 0, + .can_access_local_variables = 0, + .can_maintain_original_method_order = 0, + .can_generate_single_step_events = 0, + .can_generate_exception_events = 0, + .can_generate_frame_pop_events = 0, + .can_generate_breakpoint_events = 0, + .can_suspend = 0, + .can_redefine_any_class = 1, + .can_get_current_thread_cpu_time = 0, + .can_get_thread_cpu_time = 0, + .can_generate_method_entry_events = 0, + .can_generate_method_exit_events = 0, + .can_generate_all_class_hook_events = 0, + .can_generate_compiled_method_load_events = 0, + .can_generate_monitor_events = 0, + .can_generate_vm_object_alloc_events = 0, + .can_generate_native_method_bind_events = 0, + .can_generate_garbage_collection_events = 0, + .can_generate_object_free_events = 0, + .can_force_early_return = 0, + .can_get_owned_monitor_stack_depth_info = 0, + .can_get_constant_pool = 0, + .can_set_native_method_prefix = 0, + .can_retransform_classes = 1, + .can_retransform_any_class = 1, + .can_generate_resource_exhaustion_heap_events = 0, + .can_generate_resource_exhaustion_threads_events = 0, +}; + } // namespace openjdkjvmti #endif // ART_OPENJDKJVMTI_ART_JVMTI_H_ |