--- old/src/share/vm/memory/universe.cpp Thu Jan 7 10:24:41 2016 +++ new/src/share/vm/memory/universe.cpp Thu Jan 7 10:24:40 2016 @@ -129,6 +129,7 @@ objArrayOop Universe::_preallocated_out_of_memory_error_array = NULL; volatile jint Universe::_preallocated_out_of_memory_error_avail_count = 0; bool Universe::_verify_in_progress = false; +long Universe::verify_flags = Universe::Verify_All; oop Universe::_null_ptr_exception_instance = NULL; oop Universe::_arithmetic_exception_instance = NULL; oop Universe::_virtual_machine_error_instance = NULL; @@ -669,6 +670,9 @@ MetaspaceShared::prepare_for_dumping(); } } + if (VerifySubSet[0] != '\0') { + Universe::initialize_verify_flags(); + } return JNI_OK; } @@ -1103,6 +1107,56 @@ } } +void Universe::initialize_verify_flags() { + verify_flags = 0; + + size_t length = strlen(VerifySubSet); + char* subset_list = (char*) os::malloc(length + 1, mtInternal); + if (subset_list == NULL) { + tty->print_cr("VerifySubSet: Could not allocate memory for verify-subset, skipping subset initailization."); + return; + } + strncpy(subset_list, VerifySubSet, length + 1); + + char* token = strtok(subset_list, " ,"); + while (token != NULL) { + if (strcmp(token, "threads") == 0) { + verify_flags |= Verify_Threads; + } else if (strcmp(token, "heap") == 0) { + verify_flags |= Verify_Heap; + } else if (strcmp(token, "symbol_table") == 0) { + verify_flags |= Verify_SymbolTable; + } else if (strcmp(token, "string_table") == 0) { + verify_flags |= Verify_StringTable; + } else if (strcmp(token, "codecache") == 0) { + verify_flags |= Verify_CodeCache; + } else if (strcmp(token, "dictionary") == 0) { + verify_flags |= Verify_SystemDictionary; + } else if (strcmp(token, "classloader_data_graph") == 0) { + verify_flags |= Verify_ClassLoaderDataGraph; + } else if (strcmp(token, "metaspace") == 0) { + verify_flags |= Verify_MetaspaceAux; + } else if (strcmp(token, "jni_handles") == 0) { + verify_flags |= Verify_JNIHandles; + } else if (strcmp(token, "c-heap") == 0) { + verify_flags |= Verify_CHeap; + } else if (strcmp(token, "codecache_oops") == 0) { + verify_flags |= Verify_CodeCacheOops; + } else { + tty->print_cr("VerifySubSet: %s is unknown, skipping it.", token); + } + token = strtok(NULL, " ,"); + } + free(subset_list); +} + +bool Universe::should_verify_subset(uint subset) { + if (verify_flags & subset) { + return true; + } + return false; +} + void Universe::verify(VerifyOption option, const char* prefix) { // The use of _verify_in_progress is a temporary work around for // 6320749. Don't bother with a creating a class to set and clear @@ -1122,33 +1176,55 @@ FormatBuffer<> title("Verifying %s", prefix); GCTraceTime(Info, gc, verify) tm(title.buffer()); - log_debug(gc, verify)("Threads"); - Threads::verify(); - log_debug(gc, verify)("Heap"); - heap()->verify(option); - log_debug(gc, verify)("SymbolTable"); - SymbolTable::verify(); - log_debug(gc, verify)("StringTable"); - StringTable::verify(); + if (should_verify_subset(Verify_Threads)) { + log_debug(gc, verify)("Threads"); + Threads::verify(); + } + if (should_verify_subset(Verify_Heap)) { + log_debug(gc, verify)("Heap"); + heap()->verify(option); + } + if (should_verify_subset(Verify_SymbolTable)) { + log_debug(gc, verify)("SymbolTable"); + SymbolTable::verify(); + } + if (should_verify_subset(Verify_StringTable)) { + log_debug(gc, verify)("StringTable"); + StringTable::verify(); + } + if (should_verify_subset(Verify_CodeCache)) { { MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); log_debug(gc, verify)("CodeCache"); CodeCache::verify(); } - log_debug(gc, verify)("SystemDictionary"); - SystemDictionary::verify(); + } + if (should_verify_subset(Verify_SystemDictionary)) { + log_debug(gc, verify)("SystemDictionary"); + SystemDictionary::verify(); + } #ifndef PRODUCT - log_debug(gc, verify)("ClassLoaderDataGraph"); - ClassLoaderDataGraph::verify(); + if (should_verify_subset(Verify_ClassLoaderDataGraph)) { + log_debug(gc, verify)("ClassLoaderDataGraph"); + ClassLoaderDataGraph::verify(); + } #endif - log_debug(gc, verify)("MetaspaceAux"); - MetaspaceAux::verify_free_chunks(); - log_debug(gc, verify)("JNIHandles"); - JNIHandles::verify(); - log_debug(gc, verify)("C-heap"); - os::check_heap(); - log_debug(gc, verify)("CodeCache Oops"); - CodeCache::verify_oops(); + if (should_verify_subset(Verify_MetaspaceAux)) { + log_debug(gc, verify)("MetaspaceAux"); + MetaspaceAux::verify_free_chunks(); + } + if (should_verify_subset(Verify_JNIHandles)) { + log_debug(gc, verify)("JNIHandles"); + JNIHandles::verify(); + } + if (should_verify_subset(Verify_CHeap)) { + log_debug(gc, verify)("C-heap"); + os::check_heap(); + } + if (should_verify_subset(Verify_CodeCacheOops)) { + log_debug(gc, verify)("CodeCache Oops"); + CodeCache::verify_oops(); + } _verify_in_progress = false; }