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提交 7dfc0570 编写于 作者: N never
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6965184: possible races in make_not_entrant_or_zombie 

Reviewed-by: kvn
上级 a5b2c84c
隐藏空白更改
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Showing with 226 addition and 740 deletion
agent/src/share/classes/sun/jvm/hotspot/code/NMethod.java
浏览文件 @ 7dfc0570
......@@ -35,7 +35,6 @@ import sun.jvm.hotspot.utilities.*;
public class NMethod extends CodeBlob {
private static long pcDescSize;
private static CIntegerField zombieInstructionSizeField;
private static sun.jvm.hotspot.types.OopField methodField;
/** != InvocationEntryBci if this nmethod is an on-stack replacement method */
private static CIntegerField entryBCIField;
......@@ -88,7 +87,6 @@ public class NMethod extends CodeBlob {
private static void initialize(TypeDataBase db) {
Type type = db.lookupType("nmethod");
zombieInstructionSizeField = type.getCIntegerField("_zombie_instruction_size");
methodField = type.getOopField("_method");
entryBCIField = type.getCIntegerField("_entry_bci");
osrLinkField = type.getAddressField("_osr_link");
......
src/os/linux/vm/vtune_linux.cpp 已删除 100644 → 0
浏览文件 @ a5b2c84c
/*
* Copyright (c) 1999, 2007, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
#include "incls/_precompiled.incl"
#include "incls/_vtune_linux.cpp.incl"
// empty implementation
void VTune::start_GC() {}
void VTune::end_GC() {}
void VTune::start_class_load() {}
void VTune::end_class_load() {}
void VTune::exit() {}
void VTune::register_stub(const char* name, address start, address end) {}
void VTune::create_nmethod(nmethod* nm) {}
void VTune::delete_nmethod(nmethod* nm) {}
void vtune_init() {}
// Reconciliation History
// vtune_solaris.cpp 1.8 99/07/12 23:54:21
// End
src/os/solaris/vm/vtune_solaris.cpp 已删除 100644 → 0
浏览文件 @ a5b2c84c
/*
* Copyright (c) 1998, 2007, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
#include "incls/_precompiled.incl"
#include "incls/_vtune_solaris.cpp.incl"
// empty implementation
void VTune::start_GC() {}
void VTune::end_GC() {}
void VTune::start_class_load() {}
void VTune::end_class_load() {}
void VTune::exit() {}
void VTune::register_stub(const char* name, address start, address end) {}
void VTune::create_nmethod(nmethod* nm) {}
void VTune::delete_nmethod(nmethod* nm) {}
void vtune_init() {}
src/os/windows/vm/vtune_windows.cpp 已删除 100644 → 0
浏览文件 @ a5b2c84c
/*
* Copyright (c) 1998, 2007, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
#include "incls/_precompiled.incl"
#include "incls/_vtune_windows.cpp.incl"
static int current_method_ID = 0;
// ------------- iJITProf.h -------------------
// defined by Intel -- do not change
#include "windows.h"
extern "C" {
enum iJITP_Event {
ExceptionOccurred_S, // Java exception
ExceptionOccurred_IDS,
Shutdown, // VM exit
ThreadCreate, // threads
ThreadDestroy,
ThreadSwitch,
ClassLoadStart, // class loading
ClassLoadEnd,
GCStart, // GC
GCEnd,
NMethodCreate = 13, // nmethod creation
NMethodDelete
// rest of event types omitted (call profiling not supported yet)
};
// version number -- 0 if VTune not installed
int WINAPI iJitP_VersionNumber();
enum iJITP_ModeFlags {
NoNotification = 0x0, // don't call vtune
NotifyNMethodCreate = 0x1, // notify NMethod_Create
NotifyNMethodDelete = 0x2, // notify NMethod_Create
NotifyMethodEnter = 0x4, // method entry
NotifyMethodExit = 0x8, // method exit
NotifyShutdown = 0x10, // VM exit
NotifyGC = 0x20, // GC
};
// call back function type
typedef void (WINAPI *ModeChangedFn)(iJITP_ModeFlags flags);
// ------------- VTune method interfaces ----------------------
typedef void (WINAPI *RegisterCallbackFn)(ModeChangedFn fn); // register callback
typedef int (WINAPI *NotifyEventFn)(iJITP_Event, void* event_data);
// specific event data structures
// data for NMethodCreate
struct VTuneObj { // base class for allocation
// (can't use CHeapObj -- has vtable ptr)
void* operator new(size_t size) { return os::malloc(size); }
void operator delete(void* p) { fatal("never delete VTune data"); }
};
struct LineNumberInfo : VTuneObj { // PC-to-line number mapping
unsigned long offset; // byte offset from start of method
unsigned long line_num; // corresponding line number
};
struct MethodLoadInfo : VTuneObj {
unsigned long methodID; // unique method ID
const char* name; // method name
unsigned long instr_start; // start address
unsigned long instr_size; // length in bytes
unsigned long line_number_size; // size of line number table
LineNumberInfo* line_number_table; // line number mapping
unsigned long classID; // unique class ID
char* class_file_name; // fully qualified class file name
char* source_file_name; // fully qualified source file name
MethodLoadInfo(nmethod* nm); // for real nmethods
MethodLoadInfo(const char* vm_name, address start, address end);
// for "nmethods" like stubs, interpreter, etc
};
// data for NMethodDelete
struct MethodInfo : VTuneObj {
unsigned long methodID; // unique method ID
unsigned long classID; // (added for convenience -- not part of Intel interface)
MethodInfo(methodOop m);
};
};
MethodInfo::MethodInfo(methodOop m) {
// just give it a new ID -- we're not compiling methods twice (usually)
// (and even if we did, one might want to see the two versions separately)
methodID = ++current_method_ID;
}
MethodLoadInfo::MethodLoadInfo(const char* vm_name, address start, address end) {
classID = 0;
methodID = ++current_method_ID;
name = vm_name;
instr_start = (unsigned long)start;
instr_size = end - start;
line_number_size = 0;
line_number_table = NULL;
class_file_name = source_file_name = "HotSpot JVM";
}
MethodLoadInfo::MethodLoadInfo(nmethod* nm) {
methodOop m = nm->method();
MethodInfo info(m);
classID = info.classID;
methodID = info.methodID;
name = strdup(m->name()->as_C_string());
instr_start = (unsigned long)nm->instructions_begin();
instr_size = nm->code_size();
line_number_size = 0;
line_number_table = NULL;
klassOop kl = m->method_holder();
char* class_name = Klass::cast(kl)->name()->as_C_string();
char* file_name = NEW_C_HEAP_ARRAY(char, strlen(class_name) + 1);
strcpy(file_name, class_name);
class_file_name = file_name;
char* src_name = NEW_C_HEAP_ARRAY(char, strlen(class_name) + strlen(".java") + 1);
strcpy(src_name, class_name);
strcat(src_name, ".java");
source_file_name = src_name;
}
// --------------------- DLL loading functions ------------------------
#define DLLNAME "iJitProf.dll"
static HINSTANCE load_lib(char* name) {
HINSTANCE lib = NULL;
HKEY hk;
// try to get VTune directory from the registry
if (RegOpenKey(HKEY_CURRENT_USER, "Software\\VB and VBA Program Settings\\VTune\\StartUp", &hk) == ERROR_SUCCESS) {
for (int i = 0; true; i++) {
char szName[MAX_PATH + 1];
char szVal [MAX_PATH + 1];
DWORD cbName, cbVal;
cbName = cbVal = MAX_PATH + 1;
if (RegEnumValue(hk, i, szName, &cbName, NULL, NULL, (LPBYTE)szVal, &cbVal) == ERROR_SUCCESS) {
// get VTune directory
if (!strcmp(szName, name)) {
char*p = szVal;
while (*p == ' ') p++; // trim
char* q = p + strlen(p) - 1;
while (*q == ' ') *(q--) = '\0';
// chdir to the VTune dir
GetCurrentDirectory(MAX_PATH + 1, szName);
SetCurrentDirectory(p);
// load lib
lib = LoadLibrary(strcat(strcat(p, "\\"), DLLNAME));
if (lib != NULL && WizardMode) tty->print_cr("*loaded VTune DLL %s", p);
// restore current dir
SetCurrentDirectory(szName);
break;
}
} else {
break;
}
}
}
return lib;
}
static RegisterCallbackFn iJIT_RegisterCallback = NULL;
static NotifyEventFn iJIT_NotifyEvent = NULL;
static bool load_iJIT_funcs() {
// first try to load from PATH
HINSTANCE lib = LoadLibrary(DLLNAME);
if (lib != NULL && WizardMode) tty->print_cr("*loaded VTune DLL %s via PATH", DLLNAME);
// if not successful, try to look in the VTUNE directory
if (lib == NULL) lib = load_lib("VTUNEDIR30");
if (lib == NULL) lib = load_lib("VTUNEDIR25");
if (lib == NULL) lib = load_lib("VTUNEDIR");
if (lib == NULL) return false; // unsuccessful
// try to load the functions
iJIT_RegisterCallback = (RegisterCallbackFn)GetProcAddress(lib, "iJIT_RegisterCallback");
iJIT_NotifyEvent = (NotifyEventFn) GetProcAddress(lib, "iJIT_NotifyEvent");
if (!iJIT_RegisterCallback) tty->print_cr("*couldn't find VTune entry point iJIT_RegisterCallback");
if (!iJIT_NotifyEvent) tty->print_cr("*couldn't find VTune entry point iJIT_NotifyEvent");
return iJIT_RegisterCallback != NULL && iJIT_NotifyEvent != NULL;
}
// --------------------- VTune class ------------------------
static bool active = false;
static int flags = 0;
void VTune::start_GC() {
if (active && (flags & NotifyGC)) iJIT_NotifyEvent(GCStart, NULL);
}
void VTune::end_GC() {
if (active && (flags & NotifyGC)) iJIT_NotifyEvent(GCEnd, NULL);
}
void VTune::start_class_load() {
// not yet implemented in VTune
}
void VTune::end_class_load() {
// not yet implemented in VTune
}
void VTune::exit() {
if (active && (flags & NotifyShutdown)) iJIT_NotifyEvent(Shutdown, NULL);
}
void VTune::register_stub(const char* name, address start, address end) {
if (flags & NotifyNMethodCreate) {
MethodLoadInfo* info = new MethodLoadInfo(name, start, end);
if (PrintMiscellaneous && WizardMode && Verbose) {
tty->print_cr("NMethodCreate %s (%d): %#x..%#x", info->name, info->methodID,
info->instr_start, info->instr_start + info->instr_size);
}
iJIT_NotifyEvent(NMethodCreate, info);
}
}
void VTune::create_nmethod(nmethod* nm) {
if (flags & NotifyNMethodCreate) {
MethodLoadInfo* info = new MethodLoadInfo(nm);
if (PrintMiscellaneous && WizardMode && Verbose) {
tty->print_cr("NMethodCreate %s (%d): %#x..%#x", info->name, info->methodID,
info->instr_start, info->instr_start + info->instr_size);
}
iJIT_NotifyEvent(NMethodCreate, info);
}
}
void VTune::delete_nmethod(nmethod* nm) {
if (flags & NotifyNMethodDelete) {
MethodInfo* info = new MethodInfo(nm->method());
iJIT_NotifyEvent(NMethodDelete, info);
}
}
static void set_flags(int new_flags) {
flags = new_flags;
// if (WizardMode) tty->print_cr("*new VTune flags: %#x", flags);
}
void vtune_init() {
if (!UseVTune) return;
active = load_iJIT_funcs();
if (active) {
iJIT_RegisterCallback((ModeChangedFn)set_flags);
} else {
assert(flags == 0, "flags shouldn't be set");
}
}
src/share/vm/classfile/classLoader.cpp
浏览文件 @ 7dfc0570
/*
* Copyright (c) 1997, 2009, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
......@@ -832,7 +832,6 @@ objArrayOop ClassLoader::get_system_packages(TRAPS) {
instanceKlassHandle ClassLoader::load_classfile(symbolHandle h_name, TRAPS) {
VTuneClassLoadMarker clm;
ResourceMark rm(THREAD);
EventMark m("loading class " INTPTR_FORMAT, (address)h_name());
ThreadProfilerMark tpm(ThreadProfilerMark::classLoaderRegion);
......
src/share/vm/code/codeBlob.cpp
浏览文件 @ 7dfc0570
......@@ -210,6 +210,7 @@ AdapterBlob* AdapterBlob::create(CodeBuffer* cb) {
{
MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
blob = new (size) AdapterBlob(size, cb);
CodeCache::commit(blob);
}
// Track memory usage statistic after releasing CodeCache_lock
MemoryService::track_code_cache_memory_usage();
......@@ -281,7 +282,6 @@ RuntimeStub* RuntimeStub::new_runtime_stub(const char* stub_name,
tty->print_cr("Decoding %s " INTPTR_FORMAT, stub_id, stub);
Disassembler::decode(stub->instructions_begin(), stub->instructions_end());
}
VTune::register_stub(stub_id, stub->instructions_begin(), stub->instructions_end());
Forte::register_stub(stub_id, stub->instructions_begin(), stub->instructions_end());
if (JvmtiExport::should_post_dynamic_code_generated()) {
......@@ -356,7 +356,6 @@ DeoptimizationBlob* DeoptimizationBlob::create(
tty->print_cr("Decoding %s " INTPTR_FORMAT, blob_id, blob);
Disassembler::decode(blob->instructions_begin(), blob->instructions_end());
}
VTune::register_stub(blob_id, blob->instructions_begin(), blob->instructions_end());
Forte::register_stub(blob_id, blob->instructions_begin(), blob->instructions_end());
if (JvmtiExport::should_post_dynamic_code_generated()) {
......@@ -414,7 +413,6 @@ UncommonTrapBlob* UncommonTrapBlob::create(
tty->print_cr("Decoding %s " INTPTR_FORMAT, blob_id, blob);
Disassembler::decode(blob->instructions_begin(), blob->instructions_end());
}
VTune::register_stub(blob_id, blob->instructions_begin(), blob->instructions_end());
Forte::register_stub(blob_id, blob->instructions_begin(), blob->instructions_end());
if (JvmtiExport::should_post_dynamic_code_generated()) {
......@@ -474,7 +472,6 @@ ExceptionBlob* ExceptionBlob::create(
tty->print_cr("Decoding %s " INTPTR_FORMAT, blob_id, blob);
Disassembler::decode(blob->instructions_begin(), blob->instructions_end());
}
VTune::register_stub(blob_id, blob->instructions_begin(), blob->instructions_end());
Forte::register_stub(blob_id, blob->instructions_begin(), blob->instructions_end());
if (JvmtiExport::should_post_dynamic_code_generated()) {
......@@ -533,7 +530,6 @@ SafepointBlob* SafepointBlob::create(
tty->print_cr("Decoding %s " INTPTR_FORMAT, blob_id, blob);
Disassembler::decode(blob->instructions_begin(), blob->instructions_end());
}
VTune::register_stub(blob_id, blob->instructions_begin(), blob->instructions_end());
Forte::register_stub(blob_id, blob->instructions_begin(), blob->instructions_end());
if (JvmtiExport::should_post_dynamic_code_generated()) {
......
src/share/vm/code/codeCache.cpp
浏览文件 @ 7dfc0570
......@@ -93,6 +93,8 @@ class CodeBlob_sizes {
CodeHeap * CodeCache::_heap = new CodeHeap();
int CodeCache::_number_of_blobs = 0;
int CodeCache::_number_of_adapters = 0;
int CodeCache::_number_of_nmethods = 0;
int CodeCache::_number_of_nmethods_with_dependencies = 0;
bool CodeCache::_needs_cache_clean = false;
nmethod* CodeCache::_scavenge_root_nmethods = NULL;
......@@ -176,8 +178,14 @@ void CodeCache::free(CodeBlob* cb) {
verify_if_often();
print_trace("free", cb);
if (cb->is_nmethod() && ((nmethod *)cb)->has_dependencies()) {
_number_of_nmethods_with_dependencies--;
if (cb->is_nmethod()) {
_number_of_nmethods--;
if (((nmethod *)cb)->has_dependencies()) {
_number_of_nmethods_with_dependencies--;
}
}
if (cb->is_adapter_blob()) {
_number_of_adapters--;
}
_number_of_blobs--;
......@@ -191,9 +199,16 @@ void CodeCache::free(CodeBlob* cb) {
void CodeCache::commit(CodeBlob* cb) {
// this is called by nmethod::nmethod, which must already own CodeCache_lock
assert_locked_or_safepoint(CodeCache_lock);
if (cb->is_nmethod() && ((nmethod *)cb)->has_dependencies()) {
_number_of_nmethods_with_dependencies++;
if (cb->is_nmethod()) {
_number_of_nmethods++;
if (((nmethod *)cb)->has_dependencies()) {
_number_of_nmethods_with_dependencies++;
}
}
if (cb->is_adapter_blob()) {
_number_of_adapters++;
}
// flush the hardware I-cache
ICache::invalidate_range(cb->instructions_begin(), cb->instructions_size());
}
......
src/share/vm/code/codeCache.hpp
浏览文件 @ 7dfc0570
/*
* Copyright (c) 1997, 2008, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
......@@ -43,6 +43,8 @@ class CodeCache : AllStatic {
// 4422213 or 4436291 for details.
static CodeHeap * _heap;
static int _number_of_blobs;
static int _number_of_adapters;
static int _number_of_nmethods;
static int _number_of_nmethods_with_dependencies;
static bool _needs_cache_clean;
static nmethod* _scavenge_root_nmethods; // linked via nm->scavenge_root_link()
......@@ -105,6 +107,8 @@ class CodeCache : AllStatic {
static nmethod* first_nmethod();
static nmethod* next_nmethod (CodeBlob* cb);
static int nof_blobs() { return _number_of_blobs; }
static int nof_adapters() { return _number_of_adapters; }
static int nof_nmethods() { return _number_of_nmethods; }
// GC support
static void gc_epilogue();
......
src/share/vm/code/nmethod.cpp
浏览文件 @ 7dfc0570
......@@ -397,11 +397,6 @@ void nmethod::add_handler_for_exception_and_pc(Handle exception, address pc, add
//-------------end of code for ExceptionCache--------------
void nmFlags::clear() {
assert(sizeof(nmFlags) == sizeof(int), "using more than one word for nmFlags");
*(jint*)this = 0;
}
int nmethod::total_size() const {
return
code_size() +
......@@ -419,8 +414,32 @@ const char* nmethod::compile_kind() const {
return NULL;
}
// %%% This variable is no longer used?
int nmethod::_zombie_instruction_size = NativeJump::instruction_size;
// Fill in default values for various flag fields
void nmethod::init_defaults() {
_state = alive;
_marked_for_reclamation = 0;
_has_flushed_dependencies = 0;
_speculatively_disconnected = 0;
_has_unsafe_access = 0;
_has_method_handle_invokes = 0;
_marked_for_deoptimization = 0;
_lock_count = 0;
_stack_traversal_mark = 0;
_unload_reported = false; // jvmti state
NOT_PRODUCT(_has_debug_info = false);
_oops_do_mark_link = NULL;
_jmethod_id = NULL;
_osr_link = NULL;
_scavenge_root_link = NULL;
_scavenge_root_state = 0;
_saved_nmethod_link = NULL;
_compiler = NULL;
#ifdef HAVE_DTRACE_H
_trap_offset = 0;
#endif // def HAVE_DTRACE_H
}
nmethod* nmethod::new_native_nmethod(methodHandle method,
......@@ -580,25 +599,16 @@ nmethod::nmethod(
debug_only(No_Safepoint_Verifier nsv;)
assert_locked_or_safepoint(CodeCache_lock);
NOT_PRODUCT(_has_debug_info = false);
_oops_do_mark_link = NULL;
init_defaults();
_method = method;
_entry_bci = InvocationEntryBci;
_jmethod_id = NULL;
_osr_link = NULL;
_scavenge_root_link = NULL;
_scavenge_root_state = 0;
_saved_nmethod_link = NULL;
_compiler = NULL;
// We have no exception handler or deopt handler make the
// values something that will never match a pc like the nmethod vtable entry
_exception_offset = 0;
_deoptimize_offset = 0;
_deoptimize_mh_offset = 0;
_orig_pc_offset = 0;
#ifdef HAVE_DTRACE_H
_trap_offset = 0;
#endif // def HAVE_DTRACE_H
_stub_offset = data_offset();
_consts_offset = data_offset();
_oops_offset = data_offset();
......@@ -616,17 +626,9 @@ nmethod::nmethod(
_exception_cache = NULL;
_pc_desc_cache.reset_to(NULL);
flags.clear();
flags.state = alive;
_markedForDeoptimization = 0;
_lock_count = 0;
_stack_traversal_mark = 0;
code_buffer->copy_oops_to(this);
debug_only(verify_scavenge_root_oops());
CodeCache::commit(this);
VTune::create_nmethod(this);
}
if (PrintNativeNMethods || PrintDebugInfo || PrintRelocations || PrintDependencies) {
......@@ -674,15 +676,9 @@ nmethod::nmethod(
debug_only(No_Safepoint_Verifier nsv;)
assert_locked_or_safepoint(CodeCache_lock);
NOT_PRODUCT(_has_debug_info = false);
_oops_do_mark_link = NULL;
init_defaults();
_method = method;
_entry_bci = InvocationEntryBci;
_jmethod_id = NULL;
_osr_link = NULL;
_scavenge_root_link = NULL;
_scavenge_root_state = 0;
_compiler = NULL;
// We have no exception handler or deopt handler make the
// values something that will never match a pc like the nmethod vtable entry
_exception_offset = 0;
......@@ -708,17 +704,9 @@ nmethod::nmethod(
_exception_cache = NULL;
_pc_desc_cache.reset_to(NULL);
flags.clear();
flags.state = alive;
_markedForDeoptimization = 0;
_lock_count = 0;
_stack_traversal_mark = 0;
code_buffer->copy_oops_to(this);
debug_only(verify_scavenge_root_oops());
CodeCache::commit(this);
VTune::create_nmethod(this);
}
if (PrintNMethods || PrintDebugInfo || PrintRelocations || PrintDependencies) {
......@@ -783,21 +771,13 @@ nmethod::nmethod(
debug_only(No_Safepoint_Verifier nsv;)
assert_locked_or_safepoint(CodeCache_lock);
NOT_PRODUCT(_has_debug_info = false);
_oops_do_mark_link = NULL;
init_defaults();
_method = method;
_jmethod_id = NULL;
_entry_bci = entry_bci;
_compile_id = compile_id;
_comp_level = comp_level;
_entry_bci = entry_bci;
_osr_link = NULL;
_scavenge_root_link = NULL;
_scavenge_root_state = 0;
_compiler = compiler;
_orig_pc_offset = orig_pc_offset;
#ifdef HAVE_DTRACE_H
_trap_offset = 0;
#endif // def HAVE_DTRACE_H
_stub_offset = instructions_offset() + code_buffer->total_offset_of(code_buffer->stubs()->start());
// Exception handler and deopt handler are in the stub section
......@@ -824,15 +804,6 @@ nmethod::nmethod(
_exception_cache = NULL;
_pc_desc_cache.reset_to(scopes_pcs_begin());
flags.clear();
flags.state = alive;
_markedForDeoptimization = 0;
_unload_reported = false; // jvmti state
_lock_count = 0;
_stack_traversal_mark = 0;
// Copy contents of ScopeDescRecorder to nmethod
code_buffer->copy_oops_to(this);
debug_info->copy_to(this);
......@@ -844,8 +815,6 @@ nmethod::nmethod(
CodeCache::commit(this);
VTune::create_nmethod(this);
// Copy contents of ExceptionHandlerTable to nmethod
handler_table->copy_to(this);
nul_chk_table->copy_to(this);
......@@ -991,11 +960,6 @@ void nmethod::print_nmethod(bool printmethod) {
}
void nmethod::set_version(int v) {
flags.version = v;
}
// Promote one word from an assembly-time handle to a live embedded oop.
inline void nmethod::initialize_immediate_oop(oop* dest, jobject handle) {
if (handle == NULL ||
......@@ -1142,6 +1106,8 @@ void nmethod::cleanup_inline_caches() {
// This is a private interface with the sweeper.
void nmethod::mark_as_seen_on_stack() {
assert(is_not_entrant(), "must be a non-entrant method");
// Set the traversal mark to ensure that the sweeper does 2
// cleaning passes before moving to zombie.
set_stack_traversal_mark(NMethodSweeper::traversal_count());
}
......@@ -1210,7 +1176,7 @@ void nmethod::make_unloaded(BoolObjectClosure* is_alive, oop cause) {
// for later on.
CodeCache::set_needs_cache_clean(true);
}
flags.state = unloaded;
_state = unloaded;
// Log the unloading.
log_state_change();
......@@ -1236,21 +1202,21 @@ void nmethod::log_state_change() const {
if (LogCompilation) {
if (xtty != NULL) {
ttyLocker ttyl; // keep the following output all in one block
if (flags.state == unloaded) {
if (_state == unloaded) {
xtty->begin_elem("make_unloaded thread='" UINTX_FORMAT "'",
os::current_thread_id());
} else {
xtty->begin_elem("make_not_entrant thread='" UINTX_FORMAT "'%s",
os::current_thread_id(),
(flags.state == zombie ? " zombie='1'" : ""));
(_state == zombie ? " zombie='1'" : ""));
}
log_identity(xtty);
xtty->stamp();
xtty->end_elem();
}
}
if (PrintCompilation && flags.state != unloaded) {
print_on(tty, flags.state == zombie ? "made zombie " : "made not entrant ");
if (PrintCompilation && _state != unloaded) {
print_on(tty, _state == zombie ? "made zombie " : "made not entrant ");
tty->cr();
}
}
......@@ -1261,8 +1227,9 @@ bool nmethod::make_not_entrant_or_zombie(unsigned int state) {
bool was_alive = false;
// Make sure the nmethod is not flushed in case of a safepoint in code below.
// Make sure neither the nmethod nor the method is flushed in case of a safepoint in code below.
nmethodLocker nml(this);
methodHandle the_method(method());
{
// If the method is already zombie there is nothing to do
......@@ -1282,7 +1249,7 @@ bool nmethod::make_not_entrant_or_zombie(unsigned int state) {
// Enter critical section. Does not block for safepoint.
MutexLockerEx pl(Patching_lock, Mutex::_no_safepoint_check_flag);
if (flags.state == state) {
if (_state == state) {
// another thread already performed this transition so nothing
// to do, but return false to indicate this.
return false;
......@@ -1293,17 +1260,37 @@ bool nmethod::make_not_entrant_or_zombie(unsigned int state) {
if (!is_osr_method() && !is_not_entrant()) {
NativeJump::patch_verified_entry(entry_point(), verified_entry_point(),
SharedRuntime::get_handle_wrong_method_stub());
assert (NativeJump::instruction_size == nmethod::_zombie_instruction_size, "");
}
was_alive = is_in_use(); // Read state under lock
if (is_in_use()) {
// It's a true state change, so mark the method as decompiled.
// Do it only for transition from alive.
inc_decompile_count();
}
// Change state
flags.state = state;
_state = state;
// Log the transition once
log_state_change();
// Remove nmethod from method.
// We need to check if both the _code and _from_compiled_code_entry_point
// refer to this nmethod because there is a race in setting these two fields
// in methodOop as seen in bugid 4947125.
// If the vep() points to the zombie nmethod, the memory for the nmethod
// could be flushed and the compiler and vtable stubs could still call
// through it.
if (method() != NULL && (method()->code() == this ||
method()->from_compiled_entry() == verified_entry_point())) {
HandleMark hm;
method()->clear_code();
}
if (state == not_entrant) {
mark_as_seen_on_stack();
}
} // leave critical region under Patching_lock
// When the nmethod becomes zombie it is no longer alive so the
......@@ -1311,18 +1298,17 @@ bool nmethod::make_not_entrant_or_zombie(unsigned int state) {
// state will be flushed later when the transition to zombie
// happens or they get unloaded.
if (state == zombie) {
// zombie only - if a JVMTI agent has enabled the CompiledMethodUnload event
// and it hasn't already been reported for this nmethod then report it now.
// (the event may have been reported earilier if the GC marked it for unloading).
post_compiled_method_unload();
MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
flush_dependencies(NULL);
} else {
assert(state == not_entrant, "other cases may need to be handled differently");
}
if (state == not_entrant) {
Events::log("Make nmethod not entrant " INTPTR_FORMAT, this);
} else {
Events::log("Make nmethod zombie " INTPTR_FORMAT, this);
}
if (TraceCreateZombies) {
tty->print_cr("nmethod <" INTPTR_FORMAT "> code made %s", this, (state == not_entrant) ? "not entrant" : "zombie");
}
......@@ -1330,47 +1316,6 @@ bool nmethod::make_not_entrant_or_zombie(unsigned int state) {
// Make sweeper aware that there is a zombie method that needs to be removed
NMethodSweeper::notify(this);
// not_entrant only stuff
if (state == not_entrant) {
mark_as_seen_on_stack();
}
if (was_alive) {
// It's a true state change, so mark the method as decompiled.
// Do it only for transition from alive.
inc_decompile_count();
}
// zombie only - if a JVMTI agent has enabled the CompiledMethodUnload event
// and it hasn't already been reported for this nmethod then report it now.
// (the event may have been reported earilier if the GC marked it for unloading).
if (state == zombie) {
post_compiled_method_unload();
}
// Zombie only stuff
if (state == zombie) {
VTune::delete_nmethod(this);
}
// Check whether method got unloaded at a safepoint before this,
// if so we can skip the flushing steps below
if (method() == NULL) return true;
// Remove nmethod from method.
// We need to check if both the _code and _from_compiled_code_entry_point
// refer to this nmethod because there is a race in setting these two fields
// in methodOop as seen in bugid 4947125.
// If the vep() points to the zombie nmethod, the memory for the nmethod
// could be flushed and the compiler and vtable stubs could still call
// through it.
if (method()->code() == this ||
method()->from_compiled_entry() == verified_entry_point()) {
HandleMark hm;
method()->clear_code();
}
return true;
}
......@@ -2109,7 +2054,6 @@ address nmethod::continuation_for_implicit_exception(address pc) {
void nmethod_init() {
// make sure you didn't forget to adjust the filler fields
assert(sizeof(nmFlags) <= 4, "nmFlags occupies more than a word");
assert(sizeof(nmethod) % oopSize == 0, "nmethod size must be multiple of a word");
}
......@@ -2345,7 +2289,6 @@ void nmethod::print() const {
tty->print("((nmethod*) "INTPTR_FORMAT ") ", this);
tty->print(" for method " INTPTR_FORMAT , (address)method());
tty->print(" { ");
if (version()) tty->print("v%d ", version());
if (is_in_use()) tty->print("in_use ");
if (is_not_entrant()) tty->print("not_entrant ");
if (is_zombie()) tty->print("zombie ");
......
src/share/vm/code/nmethod.hpp
浏览文件 @ 7dfc0570
......@@ -78,29 +78,8 @@ class PcDescCache VALUE_OBJ_CLASS_SPEC {
// nmethods (native methods) are the compiled code versions of Java methods.
struct nmFlags {
friend class VMStructs;
unsigned int version:8; // version number (0 = first version)
unsigned int age:4; // age (in # of sweep steps)
unsigned int state:2; // {alive, zombie, unloaded)
unsigned int isUncommonRecompiled:1; // recompiled because of uncommon trap?
unsigned int isToBeRecompiled:1; // to be recompiled as soon as it matures
unsigned int hasFlushedDependencies:1; // Used for maintenance of dependencies
unsigned int markedForReclamation:1; // Used by NMethodSweeper
unsigned int has_unsafe_access:1; // May fault due to unsafe access.
unsigned int has_method_handle_invokes:1; // Has this method MethodHandle invokes?
unsigned int speculatively_disconnected:1; // Marked for potential unload
void clear();
};
// A nmethod contains:
//
// An nmethod contains:
// - header (the nmethod structure)
// [Relocation]
// - relocation information
......@@ -131,8 +110,6 @@ class nmethod : public CodeBlob {
friend class CodeCache; // non-perm oops
private:
// Shared fields for all nmethod's
static int _zombie_instruction_size;
methodOop _method;
int _entry_bci; // != InvocationEntryBci if this nmethod is an on-stack replacement method
jmethodID _jmethod_id; // Cache of method()->jmethod_id()
......@@ -147,6 +124,11 @@ class nmethod : public CodeBlob {
AbstractCompiler* _compiler; // The compiler which compiled this nmethod
// offsets for entry points
address _entry_point; // entry point with class check
address _verified_entry_point; // entry point without class check
address _osr_entry_point; // entry point for on stack replacement
// Offsets for different nmethod parts
int _exception_offset;
// All deoptee's will resume execution at this location described by
......@@ -175,23 +157,31 @@ class nmethod : public CodeBlob {
// pc during a deopt.
int _orig_pc_offset;
int _compile_id; // which compilation made this nmethod
int _comp_level; // compilation level
int _compile_id; // which compilation made this nmethod
int _comp_level; // compilation level
// offsets for entry points
address _entry_point; // entry point with class check
address _verified_entry_point; // entry point without class check
address _osr_entry_point; // entry point for on stack replacement
// protected by CodeCache_lock
bool _has_flushed_dependencies; // Used for maintenance of dependencies (CodeCache_lock)
bool _speculatively_disconnected; // Marked for potential unload
bool _marked_for_reclamation; // Used by NMethodSweeper (set only by sweeper)
bool _marked_for_deoptimization; // Used for stack deoptimization
// used by jvmti to track if an unload event has been posted for this nmethod.
bool _unload_reported;
// set during construction
unsigned int _has_unsafe_access:1; // May fault due to unsafe access.
unsigned int _has_method_handle_invokes:1; // Has this method MethodHandle invokes?
// Protected by Patching_lock
unsigned char _state; // {alive, not_entrant, zombie, unloaded)
nmFlags flags; // various flags to keep track of nmethod state
bool _markedForDeoptimization; // Used for stack deoptimization
enum { alive = 0,
not_entrant = 1, // uncommon trap has happened but activations may still exist
zombie = 2,
unloaded = 3 };
// used by jvmti to track if an unload event has been posted for this nmethod.
bool _unload_reported;
jbyte _scavenge_root_state;
......@@ -270,15 +260,15 @@ class nmethod : public CodeBlob {
bool make_not_entrant_or_zombie(unsigned int state);
void inc_decompile_count();
// used to check that writes to nmFlags are done consistently.
static void check_safepoint() PRODUCT_RETURN;
// Used to manipulate the exception cache
void add_exception_cache_entry(ExceptionCache* new_entry);
ExceptionCache* exception_cache_entry_for_exception(Handle exception);
// Inform external interfaces that a compiled method has been unloaded
inline void post_compiled_method_unload();
void post_compiled_method_unload();
// Initailize fields to their default values
void init_defaults();
public:
// create nmethod with entry_bci
......@@ -393,11 +383,11 @@ class nmethod : public CodeBlob {
address verified_entry_point() const { return _verified_entry_point; } // if klass is correct
// flag accessing and manipulation
bool is_in_use() const { return flags.state == alive; }
bool is_alive() const { return flags.state == alive || flags.state == not_entrant; }
bool is_not_entrant() const { return flags.state == not_entrant; }
bool is_zombie() const { return flags.state == zombie; }
bool is_unloaded() const { return flags.state == unloaded; }
bool is_in_use() const { return _state == alive; }
bool is_alive() const { return _state == alive || _state == not_entrant; }
bool is_not_entrant() const { return _state == not_entrant; }
bool is_zombie() const { return _state == zombie; }
bool is_unloaded() const { return _state == unloaded; }
// Make the nmethod non entrant. The nmethod will continue to be
// alive. It is used when an uncommon trap happens. Returns true
......@@ -410,37 +400,33 @@ class nmethod : public CodeBlob {
bool unload_reported() { return _unload_reported; }
void set_unload_reported() { _unload_reported = true; }
bool is_marked_for_deoptimization() const { return _markedForDeoptimization; }
void mark_for_deoptimization() { _markedForDeoptimization = true; }
bool is_marked_for_deoptimization() const { return _marked_for_deoptimization; }
void mark_for_deoptimization() { _marked_for_deoptimization = true; }
void make_unloaded(BoolObjectClosure* is_alive, oop cause);
bool has_dependencies() { return dependencies_size() != 0; }
void flush_dependencies(BoolObjectClosure* is_alive);
bool has_flushed_dependencies() { return flags.hasFlushedDependencies; }
void set_has_flushed_dependencies() {
bool has_flushed_dependencies() { return _has_flushed_dependencies; }
void set_has_flushed_dependencies() {
assert(!has_flushed_dependencies(), "should only happen once");
flags.hasFlushedDependencies = 1;
_has_flushed_dependencies = 1;
}
bool is_marked_for_reclamation() const { return flags.markedForReclamation; }
void mark_for_reclamation() { flags.markedForReclamation = 1; }
void unmark_for_reclamation() { flags.markedForReclamation = 0; }
bool is_marked_for_reclamation() const { return _marked_for_reclamation; }
void mark_for_reclamation() { _marked_for_reclamation = 1; }
bool has_unsafe_access() const { return flags.has_unsafe_access; }
void set_has_unsafe_access(bool z) { flags.has_unsafe_access = z; }
bool has_unsafe_access() const { return _has_unsafe_access; }
void set_has_unsafe_access(bool z) { _has_unsafe_access = z; }
bool has_method_handle_invokes() const { return flags.has_method_handle_invokes; }
void set_has_method_handle_invokes(bool z) { flags.has_method_handle_invokes = z; }
bool has_method_handle_invokes() const { return _has_method_handle_invokes; }
void set_has_method_handle_invokes(bool z) { _has_method_handle_invokes = z; }
bool is_speculatively_disconnected() const { return flags.speculatively_disconnected; }
void set_speculatively_disconnected(bool z) { flags.speculatively_disconnected = z; }
bool is_speculatively_disconnected() const { return _speculatively_disconnected; }
void set_speculatively_disconnected(bool z) { _speculatively_disconnected = z; }
int comp_level() const { return _comp_level; }
int version() const { return flags.version; }
void set_version(int v);
// Support for oops in scopes and relocs:
// Note: index 0 is reserved for null.
oop oop_at(int index) const { return index == 0 ? (oop) NULL: *oop_addr_at(index); }
......
src/share/vm/code/vtableStubs.cpp
浏览文件 @ 7dfc0570
/*
* Copyright (c) 1997, 2009, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
......@@ -50,7 +50,6 @@ void* VtableStub::operator new(size_t size, int code_size) {
}
_chunk = blob->instructions_begin();
_chunk_end = _chunk + bytes;
VTune::register_stub("vtable stub", _chunk, _chunk_end);
Forte::register_stub("vtable stub", _chunk, _chunk_end);
// Notify JVMTI about this stub. The event will be recorded by the enclosing
// JvmtiDynamicCodeEventCollector and posted when this thread has released
......
src/share/vm/includeDB_core
浏览文件 @ 7dfc0570
......@@ -964,7 +964,6 @@ classLoader.cpp threadService.hpp
classLoader.cpp timer.hpp
classLoader.cpp universe.inline.hpp
classLoader.cpp vmSymbols.hpp
classLoader.cpp vtune.hpp
classLoader.hpp classFileParser.hpp
classLoader.hpp perfData.hpp
......@@ -1004,7 +1003,6 @@ codeBlob.cpp relocInfo.hpp
codeBlob.cpp safepoint.hpp
codeBlob.cpp sharedRuntime.hpp
codeBlob.cpp vframe.hpp
codeBlob.cpp vtune.hpp
codeBlob.hpp codeBuffer.hpp
codeBlob.hpp frame.hpp
......@@ -2167,7 +2165,6 @@ interpreter.cpp sharedRuntime.hpp
interpreter.cpp stubRoutines.hpp
interpreter.cpp templateTable.hpp
interpreter.cpp timer.hpp
interpreter.cpp vtune.hpp
interpreter.hpp cppInterpreter.hpp
interpreter.hpp stubs.hpp
......@@ -2323,7 +2320,6 @@ java.cpp universe.hpp
java.cpp vmError.hpp
java.cpp vm_operations.hpp
java.cpp vm_version_<arch>.hpp
java.cpp vtune.hpp
java.hpp os.hpp
......@@ -3050,7 +3046,6 @@ nmethod.cpp nmethod.hpp
nmethod.cpp scopeDesc.hpp
nmethod.cpp sharedRuntime.hpp
nmethod.cpp sweeper.hpp
nmethod.cpp vtune.hpp
nmethod.cpp xmlstream.hpp
nmethod.hpp codeBlob.hpp
......@@ -3773,7 +3768,6 @@ sharedRuntime.cpp vframeArray.hpp
sharedRuntime.cpp vmSymbols.hpp
sharedRuntime.cpp vmreg_<arch>.inline.hpp
sharedRuntime.cpp vtableStubs.hpp
sharedRuntime.cpp vtune.hpp
sharedRuntime.cpp xmlstream.hpp
sharedRuntime.hpp allocation.hpp
......@@ -3937,7 +3931,6 @@ stubCodeGenerator.cpp disassembler.hpp
stubCodeGenerator.cpp forte.hpp
stubCodeGenerator.cpp oop.inline.hpp
stubCodeGenerator.cpp stubCodeGenerator.hpp
stubCodeGenerator.cpp vtune.hpp
stubCodeGenerator.hpp allocation.hpp
stubCodeGenerator.hpp assembler.hpp
......@@ -4458,7 +4451,6 @@ universe.cpp universe.hpp
universe.cpp universe.inline.hpp
universe.cpp vmSymbols.hpp
universe.cpp vm_operations.hpp
universe.cpp vtune.hpp
universe.hpp growableArray.hpp
universe.hpp handles.hpp
......@@ -4721,7 +4713,6 @@ vtableStubs.cpp mutexLocker.hpp
vtableStubs.cpp resourceArea.hpp
vtableStubs.cpp sharedRuntime.hpp
vtableStubs.cpp vtableStubs.hpp
vtableStubs.cpp vtune.hpp
vtableStubs.hpp allocation.hpp
......@@ -4735,11 +4726,6 @@ vtableStubs_<arch_model>.cpp sharedRuntime.hpp
vtableStubs_<arch_model>.cpp vmreg_<arch>.inline.hpp
vtableStubs_<arch_model>.cpp vtableStubs.hpp
vtune.hpp allocation.hpp
vtune_<os_family>.cpp interpreter.hpp
vtune_<os_family>.cpp vtune.hpp
watermark.hpp allocation.hpp
watermark.hpp globalDefinitions.hpp
......
src/share/vm/interpreter/interpreter.cpp
浏览文件 @ 7dfc0570
......@@ -99,11 +99,6 @@ void interpreter_init() {
#endif // PRODUCT
// need to hit every safepoint in order to call zapping routine
// register the interpreter
VTune::register_stub(
"Interpreter",
AbstractInterpreter::code()->code_start(),
AbstractInterpreter::code()->code_end()
);
Forte::register_stub(
"Interpreter",
AbstractInterpreter::code()->code_start(),
......
src/share/vm/runtime/globals.hpp
浏览文件 @ 7dfc0570
......@@ -2541,9 +2541,6 @@ class CommandLineFlags {
"Enable String cache capabilities on String.java") \
\
/* statistics */ \
develop(bool, UseVTune, false, \
"enable support for Intel's VTune profiler") \
\
develop(bool, CountCompiledCalls, false, \
"counts method invocations") \
\
......
src/share/vm/runtime/init.cpp
浏览文件 @ 7dfc0570
......@@ -34,7 +34,6 @@ void perfMemory_init();
// Initialization done by Java thread in init_globals()
void management_init();
void vtune_init();
void bytecodes_init();
void classLoader_init();
void codeCache_init();
......@@ -82,7 +81,6 @@ void vm_init_globals() {
jint init_globals() {
HandleMark hm;
management_init();
vtune_init();
bytecodes_init();
classLoader_init();
codeCache_init();
......
src/share/vm/runtime/java.cpp
浏览文件 @ 7dfc0570
/*
* Copyright (c) 1997, 2008, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
......@@ -432,8 +432,6 @@ void before_exit(JavaThread * thread) {
print_statistics();
Universe::heap()->print_tracing_info();
VTune::exit();
{ MutexLocker ml(BeforeExit_lock);
_before_exit_status = BEFORE_EXIT_DONE;
BeforeExit_lock->notify_all();
......
src/share/vm/runtime/sharedRuntime.cpp
浏览文件 @ 7dfc0570
......@@ -2251,7 +2251,6 @@ AdapterHandlerEntry* AdapterHandlerLibrary::get_adapter(methodHandle method) {
B->name(),
fingerprint->as_string(),
B->instructions_begin());
VTune::register_stub(blob_id, B->instructions_begin(), B->instructions_end());
Forte::register_stub(blob_id, B->instructions_begin(), B->instructions_end());
if (JvmtiExport::should_post_dynamic_code_generated()) {
......
src/share/vm/runtime/stubCodeGenerator.cpp
浏览文件 @ 7dfc0570
/*
* Copyright (c) 1997, 2008, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
......@@ -132,7 +132,6 @@ StubCodeMark::~StubCodeMark() {
_cdesc->set_end(_cgen->assembler()->pc());
assert(StubCodeDesc::_list == _cdesc, "expected order on list");
_cgen->stub_epilog(_cdesc);
VTune::register_stub(_cdesc->name(), _cdesc->begin(), _cdesc->end());
Forte::register_stub(_cdesc->name(), _cdesc->begin(), _cdesc->end());
if (JvmtiExport::should_post_dynamic_code_generated()) {
......
src/share/vm/runtime/sweeper.cpp
浏览文件 @ 7dfc0570
/*
* Copyright (c) 1997, 2009, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
......@@ -27,14 +27,15 @@
long NMethodSweeper::_traversals = 0; // No. of stack traversals performed
nmethod* NMethodSweeper::_current = NULL; // Current nmethod
int NMethodSweeper::_seen = 0 ; // No. of blobs we have currently processed in current pass of CodeCache
int NMethodSweeper::_invocations = 0; // No. of invocations left until we are completed with this pass
int NMethodSweeper::_seen = 0 ; // No. of nmethods we have currently processed in current pass of CodeCache
volatile int NMethodSweeper::_invocations = 0; // No. of invocations left until we are completed with this pass
volatile int NMethodSweeper::_sweep_started = 0; // Whether a sweep is in progress.
jint NMethodSweeper::_locked_seen = 0;
jint NMethodSweeper::_not_entrant_seen_on_stack = 0;
bool NMethodSweeper::_rescan = false;
bool NMethodSweeper::_do_sweep = false;
jint NMethodSweeper::_sweep_started = 0;
bool NMethodSweeper::_was_full = false;
jint NMethodSweeper::_advise_to_sweep = 0;
jlong NMethodSweeper::_last_was_full = 0;
......@@ -108,23 +109,14 @@ void NMethodSweeper::scan_stacks() {
// code cache is filling up
_last_was_full = os::javaTimeMillis();
if (PrintMethodFlushing) {
tty->print_cr("### sweeper: Live blobs:" UINT32_FORMAT "/Free code cache:" SIZE_FORMAT " bytes, restarting compiler",
CodeCache::nof_blobs(), CodeCache::unallocated_capacity());
}
if (LogCompilation && (xtty != NULL)) {
ttyLocker ttyl;
xtty->begin_elem("restart_compiler live_blobs='" UINT32_FORMAT "' free_code_cache='" SIZE_FORMAT "'",
CodeCache::nof_blobs(), CodeCache::unallocated_capacity());
xtty->stamp();
xtty->end_elem();
}
log_sweep("restart_compiler");
}
}
}
}
void NMethodSweeper::possibly_sweep() {
assert(JavaThread::current()->thread_state() == _thread_in_vm, "must run in vm mode");
if ((!MethodFlushing) || (!_do_sweep)) return;
if (_invocations > 0) {
......@@ -133,32 +125,31 @@ void NMethodSweeper::possibly_sweep() {
if (old != 0) {
return;
}
sweep_code_cache();
if (_invocations > 0) {
sweep_code_cache();
_invocations--;
}
_sweep_started = 0;
}
_sweep_started = 0;
}
void NMethodSweeper::sweep_code_cache() {
#ifdef ASSERT
jlong sweep_start;
if(PrintMethodFlushing) {
if (PrintMethodFlushing) {
sweep_start = os::javaTimeMillis();
}
#endif
if (PrintMethodFlushing && Verbose) {
tty->print_cr("### Sweep at %d out of %d. Invocations left: %d", _seen, CodeCache::nof_blobs(), _invocations);
}
// We want to visit all nmethods after NmethodSweepFraction invocations.
// If invocation is 1 we do the rest
int todo = CodeCache::nof_blobs();
if (_invocations > 1) {
todo = (CodeCache::nof_blobs() - _seen) / _invocations;
tty->print_cr("### Sweep at %d out of %d. Invocations left: %d", _seen, CodeCache::nof_nmethods(), _invocations);
}
// Compilers may check to sweep more often than stack scans happen,
// don't keep trying once it is all scanned
_invocations--;
// We want to visit all nmethods after NmethodSweepFraction
// invocations so divide the remaining number of nmethods by the
// remaining number of invocations. This is only an estimate since
// the number of nmethods changes during the sweep so the final
// stage must iterate until it there are no more nmethods.
int todo = (CodeCache::nof_nmethods() - _seen) / _invocations;
assert(!SafepointSynchronize::is_at_safepoint(), "should not be in safepoint when we get here");
assert(!CodeCache_lock->owned_by_self(), "just checking");
......@@ -166,11 +157,12 @@ void NMethodSweeper::sweep_code_cache() {
{
MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
for(int i = 0; i < todo && _current != NULL; i++) {
// The last invocation iterates until there are no more nmethods
for (int i = 0; (i < todo || _invocations == 1) && _current != NULL; i++) {
// Since we will give up the CodeCache_lock, always skip ahead to an nmethod.
// Other blobs can be deleted by other threads
// Read next before we potentially delete current
// Since we will give up the CodeCache_lock, always skip ahead
// to the next nmethod. Other blobs can be deleted by other
// threads but nmethods are only reclaimed by the sweeper.
nmethod* next = CodeCache::next_nmethod(_current);
// Now ready to process nmethod and give up CodeCache_lock
......@@ -183,6 +175,8 @@ void NMethodSweeper::sweep_code_cache() {
}
}
assert(_invocations > 1 || _current == NULL, "must have scanned the whole cache");
if (_current == NULL && !_rescan && (_locked_seen || _not_entrant_seen_on_stack)) {
// we've completed a scan without making progress but there were
// nmethods we were unable to process either because they were
......@@ -201,6 +195,10 @@ void NMethodSweeper::sweep_code_cache() {
tty->print_cr("### sweeper: sweep time(%d): " INT64_FORMAT, _invocations, sweep_end - sweep_start);
}
#endif
if (_invocations == 1) {
log_sweep("finished");
}
}
......@@ -223,7 +221,7 @@ void NMethodSweeper::process_nmethod(nmethod *nm) {
if (nm->is_zombie()) {
// If it is first time, we see nmethod then we mark it. Otherwise,
// we reclame it. When we have seen a zombie method twice, we know that
// there are no inline caches that referes to it.
// there are no inline caches that refer to it.
if (nm->is_marked_for_reclamation()) {
assert(!nm->is_locked_by_vm(), "must not flush locked nmethods");
if (PrintMethodFlushing && Verbose) {
......@@ -320,16 +318,8 @@ void NMethodSweeper::handle_full_code_cache(bool is_full) {
jlong curr_interval = now - _last_was_full;
if (curr_interval < max_interval) {
_rescan = true;
if (PrintMethodFlushing) {
tty->print_cr("### handle full too often, turning off compiler");
}
if (LogCompilation && (xtty != NULL)) {
ttyLocker ttyl;
xtty->begin_elem("disable_compiler flushing_interval='" UINT64_FORMAT "' live_blobs='" UINT32_FORMAT "' free_code_cache='" SIZE_FORMAT "'",
curr_interval/1000, CodeCache::nof_blobs(), CodeCache::unallocated_capacity());
xtty->stamp();
xtty->end_elem();
}
log_sweep("disable_compiler", "flushing_interval='" UINT64_FORMAT "'",
curr_interval/1000);
return;
}
}
......@@ -349,17 +339,7 @@ void NMethodSweeper::speculative_disconnect_nmethods(bool is_full) {
if ((!was_full()) && (is_full)) {
if (!CodeCache::needs_flushing()) {
if (PrintMethodFlushing) {
tty->print_cr("### sweeper: Live blobs:" UINT32_FORMAT "/Free code cache:" SIZE_FORMAT " bytes, restarting compiler",
CodeCache::nof_blobs(), CodeCache::unallocated_capacity());
}
if (LogCompilation && (xtty != NULL)) {
ttyLocker ttyl;
xtty->begin_elem("restart_compiler live_blobs='" UINT32_FORMAT "' free_code_cache='" SIZE_FORMAT "'",
CodeCache::nof_blobs(), CodeCache::unallocated_capacity());
xtty->stamp();
xtty->end_elem();
}
log_sweep("restart_compiler");
CompileBroker::set_should_compile_new_jobs(CompileBroker::run_compilation);
return;
}
......@@ -368,17 +348,7 @@ void NMethodSweeper::speculative_disconnect_nmethods(bool is_full) {
// Traverse the code cache trying to dump the oldest nmethods
uint curr_max_comp_id = CompileBroker::get_compilation_id();
uint flush_target = ((curr_max_comp_id - _highest_marked) >> 1) + _highest_marked;
if (PrintMethodFlushing && Verbose) {
tty->print_cr("### Cleaning code cache: Live blobs:" UINT32_FORMAT "/Free code cache:" SIZE_FORMAT " bytes",
CodeCache::nof_blobs(), CodeCache::unallocated_capacity());
}
if (LogCompilation && (xtty != NULL)) {
ttyLocker ttyl;
xtty->begin_elem("start_cleaning_code_cache live_blobs='" UINT32_FORMAT "' free_code_cache='" SIZE_FORMAT "'",
CodeCache::nof_blobs(), CodeCache::unallocated_capacity());
xtty->stamp();
xtty->end_elem();
}
log_sweep("start_cleaning");
nmethod* nm = CodeCache::alive_nmethod(CodeCache::first());
jint disconnected = 0;
......@@ -411,13 +381,9 @@ void NMethodSweeper::speculative_disconnect_nmethods(bool is_full) {
nm = CodeCache::alive_nmethod(CodeCache::next(nm));
}
if (LogCompilation && (xtty != NULL)) {
ttyLocker ttyl;
xtty->begin_elem("stop_cleaning_code_cache disconnected='" UINT32_FORMAT "' made_not_entrant='" UINT32_FORMAT "' live_blobs='" UINT32_FORMAT "' free_code_cache='" SIZE_FORMAT "'",
disconnected, made_not_entrant, CodeCache::nof_blobs(), CodeCache::unallocated_capacity());
xtty->stamp();
xtty->end_elem();
}
log_sweep("stop_cleaning",
"disconnected='" UINT32_FORMAT "' made_not_entrant='" UINT32_FORMAT "'",
disconnected, made_not_entrant);
// Shut off compiler. Sweeper will start over with a new stack scan and
// traversal cycle and turn it back on if it clears enough space.
......@@ -435,3 +401,38 @@ void NMethodSweeper::speculative_disconnect_nmethods(bool is_full) {
}
#endif
}
// Print out some state information about the current sweep and the
// state of the code cache if it's requested.
void NMethodSweeper::log_sweep(const char* msg, const char* format, ...) {
if (PrintMethodFlushing) {
ttyLocker ttyl;
tty->print("### sweeper: %s ", msg);
if (format != NULL) {
va_list ap;
va_start(ap, format);
tty->vprint(format, ap);
va_end(ap);
}
tty->print_cr(" total_blobs='" UINT32_FORMAT "' nmethods='" UINT32_FORMAT "'"
" adapters='" UINT32_FORMAT "' free_code_cache='" SIZE_FORMAT "'",
CodeCache::nof_blobs(), CodeCache::nof_nmethods(), CodeCache::nof_adapters(), CodeCache::unallocated_capacity());
}
if (LogCompilation && (xtty != NULL)) {
ttyLocker ttyl;
xtty->begin_elem("sweeper state='%s' traversals=`" INTX_FORMAT "' ", msg, (intx)traversal_count());
if (format != NULL) {
va_list ap;
va_start(ap, format);
xtty->vprint(format, ap);
va_end(ap);
}
xtty->print(" total_blobs='" UINT32_FORMAT "' nmethods='" UINT32_FORMAT "'"
" adapters='" UINT32_FORMAT "' free_code_cache='" SIZE_FORMAT "'",
CodeCache::nof_blobs(), CodeCache::nof_nmethods(), CodeCache::nof_adapters(), CodeCache::unallocated_capacity());
xtty->stamp();
xtty->end_elem();
}
}
src/share/vm/runtime/sweeper.hpp
浏览文件 @ 7dfc0570
/*
* Copyright (c) 1997, 2005, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
......@@ -31,12 +31,13 @@ class NMethodSweeper : public AllStatic {
static long _traversals; // Stack traversal count
static nmethod* _current; // Current nmethod
static int _seen; // Nof. nmethod we have currently processed in current pass of CodeCache
static int _invocations; // No. of invocations left until we are completed with this pass
static volatile int _invocations; // No. of invocations left until we are completed with this pass
static volatile int _sweep_started; // Flag to control conc sweeper
static bool _rescan; // Indicates that we should do a full rescan of the
// of the code cache looking for work to do.
static bool _do_sweep; // Flag to skip the conc sweep if no stack scan happened
static jint _sweep_started; // Flag to control conc sweeper
static int _locked_seen; // Number of locked nmethods encountered during the scan
static int _not_entrant_seen_on_stack; // Number of not entrant nmethod were are still on stack
......@@ -47,6 +48,9 @@ class NMethodSweeper : public AllStatic {
static long _was_full_traversal; // trav number at last emergency unloading
static void process_nmethod(nmethod *nm);
static void log_sweep(const char* msg, const char* format = NULL, ...);
public:
static long traversal_count() { return _traversals; }
......
src/share/vm/runtime/vmStructs.cpp
浏览文件 @ 7dfc0570
......@@ -614,7 +614,6 @@ static inline uint64_t cast_uint64_t(size_t x)
/* NMethods (NOTE: incomplete, but only a little) */ \
/**************************************************/ \
\
static_field(nmethod, _zombie_instruction_size, int) \
nonstatic_field(nmethod, _method, methodOop) \
nonstatic_field(nmethod, _entry_bci, int) \
nonstatic_field(nmethod, _osr_link, nmethod*) \
......
src/share/vm/runtime/vtune.hpp 已删除 100644 → 0
浏览文件 @ a5b2c84c
/*
* Copyright (c) 1998, 2007, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*
*/
// Interface to Intel's VTune profiler.
class VTune : AllStatic {
public:
static void create_nmethod(nmethod* nm); // register newly created nmethod
static void delete_nmethod(nmethod* nm); // unregister nmethod before discarding it
static void register_stub(const char* name, address start, address end);
// register internal VM stub
static void start_GC(); // start/end of GC or scavenge
static void end_GC();
static void start_class_load(); // start/end of class loading
static void end_class_load();
static void exit(); // VM exit
};
// helper objects
class VTuneGCMarker : StackObj {
public:
VTuneGCMarker() { VTune::start_GC(); }
~VTuneGCMarker() { VTune::end_GC(); }
};
class VTuneClassLoadMarker : StackObj {
public:
VTuneClassLoadMarker() { VTune::start_class_load(); }
~VTuneClassLoadMarker() { VTune::end_class_load(); }
};
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