Siva Annamalai
e72c1fb47d
- uses thread execution status transition to track when a thread is in a safepoint or needs to block for a safepoint - introduces a monitor per Thread object - uses a per thread safepoint handshake between the thread requesting a safepoint and the requested thread. The ThreadRegistry class now contains only the thread list for an isolate and the functionality of scheduling a thread onto an Isolate and unscheduling it from teh isolate. We could fold this functionality into the Isolate class in a different CL. R=rmacnak@google.com, zra@google.com Review URL: https://codereview.chromium.org/1541073002 .
181 lines
7.5 KiB
C++
181 lines
7.5 KiB
C++
// Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
|
|
// for details. All rights reserved. Use of this source code is governed by a
|
|
// BSD-style license that can be found in the LICENSE file.
|
|
|
|
#ifndef VM_RUNTIME_ENTRY_H_
|
|
#define VM_RUNTIME_ENTRY_H_
|
|
|
|
#include "vm/allocation.h"
|
|
#include "vm/flags.h"
|
|
#include "vm/native_arguments.h"
|
|
#include "vm/runtime_entry_list.h"
|
|
#include "vm/safepoint.h"
|
|
#include "vm/tags.h"
|
|
|
|
namespace dart {
|
|
|
|
class Assembler;
|
|
|
|
DECLARE_FLAG(bool, trace_runtime_calls);
|
|
|
|
typedef void (*RuntimeFunction)(NativeArguments arguments);
|
|
|
|
enum RuntimeFunctionId {
|
|
kNoRuntimeFunctionId = -1,
|
|
#define DECLARE_ENUM_VALUE(name) \
|
|
k##name##Id,
|
|
RUNTIME_ENTRY_LIST(DECLARE_ENUM_VALUE)
|
|
#undef DECLARE_ENUM_VALUE
|
|
|
|
#define DECLARE_LEAF_ENUM_VALUE(type, name, ...) \
|
|
k##name##Id,
|
|
LEAF_RUNTIME_ENTRY_LIST(DECLARE_LEAF_ENUM_VALUE)
|
|
#undef DECLARE_LEAF_ENUM_VALUE
|
|
};
|
|
|
|
// Class RuntimeEntry is used to encapsulate runtime functions, it includes
|
|
// the entry point for the runtime function and the number of arguments expected
|
|
// by the function.
|
|
class RuntimeEntry : public ValueObject {
|
|
public:
|
|
RuntimeEntry(const char* name, RuntimeFunction function,
|
|
intptr_t argument_count, bool is_leaf, bool is_float)
|
|
: name_(name),
|
|
function_(function),
|
|
argument_count_(argument_count),
|
|
is_leaf_(is_leaf),
|
|
is_float_(is_float),
|
|
next_(NULL) {
|
|
VMTag::RegisterRuntimeEntry(this);
|
|
}
|
|
|
|
const char* name() const { return name_; }
|
|
RuntimeFunction function() const { return function_; }
|
|
intptr_t argument_count() const { return argument_count_; }
|
|
bool is_leaf() const { return is_leaf_; }
|
|
bool is_float() const { return is_float_; }
|
|
uword GetEntryPoint() const;
|
|
|
|
// Generate code to call the runtime entry.
|
|
void Call(Assembler* assembler, intptr_t argument_count) const;
|
|
|
|
void set_next(const RuntimeEntry* next) { next_ = next; }
|
|
const RuntimeEntry* next() const { return next_; }
|
|
|
|
static inline uword AddressFromId(RuntimeFunctionId id);
|
|
static inline RuntimeFunctionId RuntimeFunctionIdFromAddress(uword address);
|
|
|
|
private:
|
|
const char* name_;
|
|
const RuntimeFunction function_;
|
|
const intptr_t argument_count_;
|
|
const bool is_leaf_;
|
|
const bool is_float_;
|
|
const RuntimeEntry* next_;
|
|
|
|
DISALLOW_COPY_AND_ASSIGN(RuntimeEntry);
|
|
};
|
|
|
|
|
|
// Helper macros for declaring and defining runtime entries.
|
|
|
|
#define DEFINE_RUNTIME_ENTRY(name, argument_count) \
|
|
extern void DRT_##name(NativeArguments arguments); \
|
|
extern const RuntimeEntry k##name##RuntimeEntry( \
|
|
"DRT_"#name, &DRT_##name, argument_count, false, false); \
|
|
static void DRT_Helper##name(Isolate* isolate, \
|
|
Thread* thread, \
|
|
Zone* zone, \
|
|
NativeArguments arguments); \
|
|
void DRT_##name(NativeArguments arguments) { \
|
|
CHECK_STACK_ALIGNMENT; \
|
|
VERIFY_ON_TRANSITION; \
|
|
ASSERT(arguments.ArgCount() == argument_count); \
|
|
if (FLAG_trace_runtime_calls) OS::Print("Runtime call: %s\n", ""#name); \
|
|
{ \
|
|
Thread* thread = arguments.thread(); \
|
|
ASSERT(thread == Thread::Current()); \
|
|
Isolate* isolate = thread->isolate(); \
|
|
TransitionGeneratedToVM transition(thread); \
|
|
StackZone zone(thread); \
|
|
HANDLESCOPE(thread); \
|
|
DRT_Helper##name(isolate, thread, zone.GetZone(), arguments); \
|
|
} \
|
|
VERIFY_ON_TRANSITION; \
|
|
} \
|
|
static void DRT_Helper##name(Isolate* isolate, \
|
|
Thread* thread, \
|
|
Zone* zone, \
|
|
NativeArguments arguments)
|
|
|
|
#define DECLARE_RUNTIME_ENTRY(name) \
|
|
extern const RuntimeEntry k##name##RuntimeEntry; \
|
|
extern void DRT_##name(NativeArguments arguments); \
|
|
|
|
#define DEFINE_LEAF_RUNTIME_ENTRY(type, name, argument_count, ...) \
|
|
extern "C" type DLRT_##name(__VA_ARGS__); \
|
|
extern const RuntimeEntry k##name##RuntimeEntry( \
|
|
"DLRT_"#name, reinterpret_cast<RuntimeFunction>(&DLRT_##name), \
|
|
argument_count, true, false); \
|
|
type DLRT_##name(__VA_ARGS__) { \
|
|
CHECK_STACK_ALIGNMENT; \
|
|
NoSafepointScope no_safepoint_scope; \
|
|
|
|
#define END_LEAF_RUNTIME_ENTRY }
|
|
|
|
// TODO(rmacnak): Fix alignment issue on simarm and simmips and use
|
|
// DEFINE_LEAF_RUNTIME_ENTRY instead.
|
|
#define DEFINE_RAW_LEAF_RUNTIME_ENTRY(name, argument_count, is_float, func) \
|
|
extern const RuntimeEntry k##name##RuntimeEntry( \
|
|
"DFLRT_"#name, func, argument_count, true, is_float) \
|
|
|
|
#define DECLARE_LEAF_RUNTIME_ENTRY(type, name, ...) \
|
|
extern const RuntimeEntry k##name##RuntimeEntry; \
|
|
extern "C" type DLRT_##name(__VA_ARGS__); \
|
|
|
|
|
|
// Declare all runtime functions here.
|
|
RUNTIME_ENTRY_LIST(DECLARE_RUNTIME_ENTRY)
|
|
LEAF_RUNTIME_ENTRY_LIST(DECLARE_LEAF_RUNTIME_ENTRY)
|
|
|
|
|
|
// Declare all runtime functions here.
|
|
RUNTIME_ENTRY_LIST(DECLARE_RUNTIME_ENTRY)
|
|
LEAF_RUNTIME_ENTRY_LIST(DECLARE_LEAF_RUNTIME_ENTRY)
|
|
|
|
|
|
uword RuntimeEntry::AddressFromId(RuntimeFunctionId id) {
|
|
switch (id) {
|
|
#define DEFINE_RUNTIME_CASE(name) \
|
|
case k##name##Id: return k##name##RuntimeEntry.GetEntryPoint();
|
|
RUNTIME_ENTRY_LIST(DEFINE_RUNTIME_CASE)
|
|
#undef DEFINE_RUNTIME_CASE
|
|
|
|
#define DEFINE_LEAF_RUNTIME_CASE(type, name, ...) \
|
|
case k##name##Id: return k##name##RuntimeEntry.GetEntryPoint();
|
|
LEAF_RUNTIME_ENTRY_LIST(DEFINE_LEAF_RUNTIME_CASE)
|
|
#undef DEFINE_LEAF_RUNTIME_CASE
|
|
default:
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
RuntimeFunctionId RuntimeEntry::RuntimeFunctionIdFromAddress(uword address) {
|
|
#define CHECK_RUNTIME_ADDRESS(name) \
|
|
if (address == k##name##RuntimeEntry.GetEntryPoint()) return k##name##Id;
|
|
RUNTIME_ENTRY_LIST(CHECK_RUNTIME_ADDRESS)
|
|
#undef CHECK_RUNTIME_ADDRESS
|
|
|
|
#define CHECK_LEAF_RUNTIME_ADDRESS(type, name, ...) \
|
|
if (address == k##name##RuntimeEntry.GetEntryPoint()) return k##name##Id;
|
|
LEAF_RUNTIME_ENTRY_LIST(CHECK_LEAF_RUNTIME_ADDRESS)
|
|
#undef CHECK_LEAF_RUNTIME_ADDRESS
|
|
return kNoRuntimeFunctionId;
|
|
}
|
|
|
|
} // namespace dart
|
|
|
|
#endif // VM_RUNTIME_ENTRY_H_
|