jint init_globals() {
HandleMark hm;
management_init();
bytecodes_init();
classLoader_init();
codeCache_init();
VM_Version_init();
os_init_globals();
stubRoutines_init1();
jint status = universe_init(); // dependent on codeCache_init and
// stubRoutines_init1
if (status != JNI_OK)
return status;
interpreter_init(); // before any methods loaded
invocationCounter_init(); // before any methods loaded
marksweep_init();
accessFlags_init();
templateTable_init();
InterfaceSupport_init();
SharedRuntime::generate_stubs();
universe2_init(); // dependent on codeCache_init and stubRoutines_init1
referenceProcessor_init();
jni_handles_init();
#ifndef VM_STRUCTS_KERNEL
vmStructs_init();
#endif // VM_STRUCTS_KERNEL
vtableStubs_init();
InlineCacheBuffer_init();
compilerOracle_init();
compilationPolicy_init();
compileBroker_init();
VMRegImpl::set_regName();
if (!universe_post_init()) {
return JNI_ERR;
}
javaClasses_init(); // must happen after vtable initialization
stubRoutines_init2(); // note: StubRoutines need 2-phase init
// Although we'd like to, we can't easily do a heap verify
// here because the main thread isn't yet a JavaThread, so
// its TLAB may not be made parseable from the usual interfaces.
if (VerifyBeforeGC && !UseTLAB &&
Universe::heap()->total_collections() >= VerifyGCStartAt) {
Universe::heap()->prepare_for_verify();
Universe::verify(); // make sure we're starting with a clean slate
}
// All the flags that get adjusted by VM_Version_init and os::init_2
// have been set so dump the flags now.
if (PrintFlagsFinal) {
CommandLineFlags::printFlags(tty, false);
}
return JNI_OK;
}
jint init_globals() {
HandleMark hm;
management_init();
bytecodes_init();
classLoader_init();
codeCache_init();
VM_Version_init();
os_init_globals();
stubRoutines_init1();
jint status = universe_init(); // dependent on codeCache_init and
// stubRoutines_init1 and metaspace_init.
if (status != JNI_OK)
return status;
interpreter_init(); // before any methods loaded
invocationCounter_init(); // before any methods loaded
marksweep_init();
accessFlags_init();
templateTable_init();
InterfaceSupport_init();
SharedRuntime::generate_stubs();
universe2_init(); // dependent on codeCache_init and stubRoutines_init1
referenceProcessor_init();
jni_handles_init();
#if INCLUDE_VM_STRUCTS
vmStructs_init();
#endif // INCLUDE_VM_STRUCTS
vtableStubs_init();
InlineCacheBuffer_init();
compilerOracle_init();
compilationPolicy_init();
compileBroker_init();
VMRegImpl::set_regName();
if (!universe_post_init()) {
return JNI_ERR;
}
javaClasses_init(); // must happen after vtable initialization
stubRoutines_init2(); // note: StubRoutines need 2-phase init
// All the flags that get adjusted by VM_Version_init and os::init_2
// have been set so dump the flags now.
if (PrintFlagsFinal) {
CommandLineFlags::printFlags(tty, false);
}
return JNI_OK;
}
/*
* main program
*/
int main( int argc, char *argv[])
{
int status;
time_t t;
/*
* print start of test time
*/
time( &t);
fprintf( stdout, "for ajb200 start time: %s", ctime( &t));
/*
* initialize or constructor, init
*/
if(( status = universe_init()))
{
fprintf( stderr, "Error: init: %d\n", status);
return status;
}
/*
* process the command line args
*/
while( --argc)
universe_process_flags( *++argv);
/*
* check if no files parsed
*/
if( ! IS_FLAGS_PARSE( data.flags))
{
/*
* so use stdin and call the parser
*/
if(( status = yyparse()))
{
fprintf( stderr, "Error: yyparse %d\n", status);
}
}
/*
* deinitialize or destructor, exit
*/
if(( status = universe_exit()))
{
fprintf( stderr, "Error: exit: %d\n", status);
}
return status;
}
/*
* Tundra Universe configuration
*/
int do_universe(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
ulong addr1 = 0, addr2 = 0, size = 0, vam = 0, pms = 0, vdw = 0;
char cmd = 'x';
/* get parameter */
if (argc > 1)
cmd = argv[1][0];
if (argc > 2)
addr1 = simple_strtoul(argv[2], NULL, 16);
if (argc > 3)
addr2 = simple_strtoul(argv[3], NULL, 16);
if (argc > 4)
size = simple_strtoul(argv[4], NULL, 16);
if (argc > 5)
vam = simple_strtoul(argv[5], NULL, 16);
if (argc > 6)
pms = simple_strtoul(argv[6], NULL, 16);
if (argc > 7)
vdw = simple_strtoul(argv[7], NULL, 16);
switch (cmd) {
case 'i': /* init */
universe_init();
break;
case 'v': /* vme */
printf("Configuring Universe VME Slave Window (VME->PCI):\n");
printf(" vme=%08lx pci=%08lx size=%08lx vam=%02lx pms=%02lx\n",
addr1, addr2, size, vam, pms);
universe_vme_slave_window(addr1, addr2, size, vam, pms);
break;
case 'p': /* pci */
printf("Configuring Universe PCI Slave Window (PCI->VME):\n");
printf(" pci=%08lx vme=%08lx size=%08lx vam=%02lx pms=%02lx vdw=%02lx\n",
addr1, addr2, size, vam, pms, vdw);
universe_pci_slave_window(addr1, addr2, size, vam, pms, vdw);
break;
default:
printf("Universe command %s not supported!\n", argv[1]);
}
return 0;
}
jint init_globals() {
HandleMark hm;
management_init();
bytecodes_init();
classLoader_init1();
compilationPolicy_init();
codeCache_init();
CodeCacheExtensions::initialize();
VM_Version_init();
CodeCacheExtensions::complete_step(CodeCacheExtensionsSteps::VMVersion);
os_init_globals();
stubRoutines_init1();
CodeCacheExtensions::complete_step(CodeCacheExtensionsSteps::StubRoutines1);
jint status = universe_init(); // dependent on codeCache_init and
// stubRoutines_init1 and metaspace_init.
if (status != JNI_OK)
return status;
CodeCacheExtensions::complete_step(CodeCacheExtensionsSteps::Universe);
interpreter_init(); // before any methods loaded
CodeCacheExtensions::complete_step(CodeCacheExtensionsSteps::Interpreter);
invocationCounter_init(); // before any methods loaded
marksweep_init();
accessFlags_init();
templateTable_init();
InterfaceSupport_init();
SharedRuntime::generate_stubs();
universe2_init(); // dependent on codeCache_init and stubRoutines_init1
referenceProcessor_init();
jni_handles_init();
#if INCLUDE_VM_STRUCTS
vmStructs_init();
#endif // INCLUDE_VM_STRUCTS
vtableStubs_init();
InlineCacheBuffer_init();
compilerOracle_init();
dependencyContext_init();
if (!compileBroker_init()) {
return JNI_EINVAL;
}
VMRegImpl::set_regName();
if (!universe_post_init()) {
return JNI_ERR;
}
javaClasses_init(); // must happen after vtable initialization
stubRoutines_init2(); // note: StubRoutines need 2-phase init
MethodHandles::generate_adapters();
CodeCacheExtensions::complete_step(CodeCacheExtensionsSteps::StubRoutines2);
#if INCLUDE_NMT
// Solaris stack is walkable only after stubRoutines are set up.
// On Other platforms, the stack is always walkable.
NMT_stack_walkable = true;
#endif // INCLUDE_NMT
// All the flags that get adjusted by VM_Version_init and os::init_2
// have been set so dump the flags now.
if (PrintFlagsFinal || PrintFlagsRanges) {
CommandLineFlags::printFlags(tty, false, PrintFlagsRanges);
}
CodeCacheExtensions::complete_step(CodeCacheExtensionsSteps::InitGlobals);
return JNI_OK;
}
jint init_globals() {
HandleMark hm;
// 初始化各子系统的监控及管理服务
// JMX、线程和同步子系统、类加载子系统的监控和管理
management_init();
// 初始化字节码表，如istore、iload、iadd
bytecodes_init();
// 类加载器初始化
classLoader_init();
// 代码缓存池初始化
codeCache_init();
// VM版本初始化
VM_Version_init();
// 系统初始化
os_init_globals();
stubRoutines_init1();
// ============================
// 初始化堆以及决定所使用GC策略
// ============================
jint status = universe_init(); // dependent on codeCache_init and
// stubRoutines_init1
if (status != JNI_OK)
return status;
// 初始化解析器
interpreter_init(); // before any methods loaded
// 初始化动作触发器
invocationCounter_init(); // before any methods loaded
// 初始化MarkSweep
marksweep_init();
// 初始化访问标识
accessFlags_init();
// 初始化操作码模板表
templateTable_init();
// 接口支持提供了VM_LEAF_BASE和VM_ENTRY_BASE宏
InterfaceSupport_init();
SharedRuntime::generate_stubs();
// 初始化语法表及系统字典等
universe2_init(); // dependent on codeCache_init and stubRoutines_init1
// 初始化软引用时间戳表并设定软引用清除策略
referenceProcessor_init();
jni_handles_init();
// 代码数据结构的必要性检查（仅限debug版本）
vmStructs_init();
vtableStubs_init();
InlineCacheBuffer_init();
// oracle编译器初始化（oracle编译器是一个编译器开关接口）
compilerOracle_init();
// 初始化编译策略（根据启动参数决定编译策略）
compilationPolicy_init();
compileBroker_init();
VMRegImpl::set_regName();
// 执行初始化
if (!universe_post_init()) {
return JNI_ERR;
}
// 计算各种filed的偏移量？？
javaClasses_init(); // must happen after vtable initialization
stubRoutines_init2(); // note: StubRoutines need 2-phase init
// All the flags that get adjusted by VM_Version_init and os::init_2
// have been set so dump the flags now.
if (PrintFlagsFinal) {
CommandLineFlags::printFlags(tty, false);
}
return JNI_OK;
}