frames-inl.h 9.46 KB
Newer Older
1
// Copyright 2012 the V8 project authors. All rights reserved.
2 3
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
4 5 6 7

#ifndef V8_FRAMES_INL_H_
#define V8_FRAMES_INL_H_

8 9
#include "src/frames.h"
#include "src/isolate.h"
10
#include "src/objects-inl.h"
11
#include "src/v8memory.h"
12

13
#if V8_TARGET_ARCH_IA32
14
#include "src/ia32/frames-ia32.h"  // NOLINT
15
#elif V8_TARGET_ARCH_X64
16
#include "src/x64/frames-x64.h"  // NOLINT
17
#elif V8_TARGET_ARCH_ARM64
18
#include "src/arm64/frames-arm64.h"  // NOLINT
19
#elif V8_TARGET_ARCH_ARM
20
#include "src/arm/frames-arm.h"  // NOLINT
21 22
#elif V8_TARGET_ARCH_PPC
#include "src/ppc/frames-ppc.h"  // NOLINT
23
#elif V8_TARGET_ARCH_MIPS
24
#include "src/mips/frames-mips.h"  // NOLINT
25 26
#elif V8_TARGET_ARCH_MIPS64
#include "src/mips64/frames-mips64.h"  // NOLINT
27 28
#elif V8_TARGET_ARCH_S390
#include "src/s390/frames-s390.h"  // NOLINT
danno@chromium.org's avatar
danno@chromium.org committed
29
#elif V8_TARGET_ARCH_X87
30
#include "src/x87/frames-x87.h"  // NOLINT
31 32
#else
#error Unsupported target architecture.
33 34
#endif

35 36
namespace v8 {
namespace internal {
37 38 39


inline Address StackHandler::address() const {
40
  return reinterpret_cast<Address>(const_cast<StackHandler*>(this));
41 42 43 44 45 46 47 48 49 50 51 52 53 54
}


inline StackHandler* StackHandler::next() const {
  const int offset = StackHandlerConstants::kNextOffset;
  return FromAddress(Memory::Address_at(address() + offset));
}


inline StackHandler* StackHandler::FromAddress(Address address) {
  return reinterpret_cast<StackHandler*>(address);
}


55
inline StackFrame::StackFrame(StackFrameIteratorBase* iterator)
56 57 58 59
    : iterator_(iterator), isolate_(iterator_->isolate()) {
}


60 61 62 63 64
inline StackHandler* StackFrame::top_handler() const {
  return iterator_->handler();
}


65
inline Code* StackFrame::LookupCode() const {
66 67
  // TODO(jgruber): This should really check that pc is within the returned
  // code's instruction range [instruction_start(), instruction_end()[.
68 69 70 71
  return GetContainingCode(isolate(), pc());
}


72
inline Code* StackFrame::GetContainingCode(Isolate* isolate, Address pc) {
73
  return isolate->inner_pointer_to_code_cache()->GetCacheEntry(pc)->code;
74 75 76
}


77 78 79 80 81 82 83 84 85 86 87
inline Address* StackFrame::ResolveReturnAddressLocation(Address* pc_address) {
  if (return_address_location_resolver_ == NULL) {
    return pc_address;
  } else {
    return reinterpret_cast<Address*>(
        return_address_location_resolver_(
            reinterpret_cast<uintptr_t>(pc_address)));
  }
}


88
inline EntryFrame::EntryFrame(StackFrameIteratorBase* iterator)
89 90 91 92
    : StackFrame(iterator) {
}


93 94
inline EntryConstructFrame::EntryConstructFrame(
    StackFrameIteratorBase* iterator)
95 96 97 98
    : EntryFrame(iterator) {
}


99
inline ExitFrame::ExitFrame(StackFrameIteratorBase* iterator)
100 101 102
    : StackFrame(iterator) {
}

103 104 105
inline BuiltinExitFrame::BuiltinExitFrame(StackFrameIteratorBase* iterator)
    : ExitFrame(iterator) {}

106 107 108 109 110 111
inline Object* BuiltinExitFrame::receiver_slot_object() const {
  // The receiver is the first argument on the frame.
  // fp[1]: return address.
  // fp[2]: the last argument (new target).
  // fp[4]: argc.
  // fp[2 + argc - 1]: receiver.
112
  Object* argc_slot = argc_slot_object();
113 114 115 116 117 118 119 120
  DCHECK(argc_slot->IsSmi());
  int argc = Smi::cast(argc_slot)->value();

  const int receiverOffset =
      BuiltinExitFrameConstants::kNewTargetOffset + (argc - 1) * kPointerSize;
  return Memory::Object_at(fp() + receiverOffset);
}

121 122 123 124 125 126 127 128 129 130 131 132
inline Object* BuiltinExitFrame::argc_slot_object() const {
  return Memory::Object_at(fp() + BuiltinExitFrameConstants::kArgcOffset);
}

inline Object* BuiltinExitFrame::target_slot_object() const {
  return Memory::Object_at(fp() + BuiltinExitFrameConstants::kTargetOffset);
}

inline Object* BuiltinExitFrame::new_target_slot_object() const {
  return Memory::Object_at(fp() + BuiltinExitFrameConstants::kNewTargetOffset);
}

133
inline StandardFrame::StandardFrame(StackFrameIteratorBase* iterator)
134 135 136 137
    : StackFrame(iterator) {
}


138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162
inline Object* StandardFrame::GetExpression(int index) const {
  return Memory::Object_at(GetExpressionAddress(index));
}


inline void StandardFrame::SetExpression(int index, Object* value) {
  Memory::Object_at(GetExpressionAddress(index)) = value;
}


inline Address StandardFrame::caller_fp() const {
  return Memory::Address_at(fp() + StandardFrameConstants::kCallerFPOffset);
}


inline Address StandardFrame::caller_pc() const {
  return Memory::Address_at(ComputePCAddress(fp()));
}


inline Address StandardFrame::ComputePCAddress(Address fp) {
  return fp + StandardFrameConstants::kCallerPCOffset;
}


163 164 165 166 167
inline Address StandardFrame::ComputeConstantPoolAddress(Address fp) {
  return fp + StandardFrameConstants::kConstantPoolOffset;
}


168
inline bool StandardFrame::IsArgumentsAdaptorFrame(Address fp) {
169 170 171
  Object* frame_type =
      Memory::Object_at(fp + TypedFrameConstants::kFrameTypeOffset);
  return frame_type == Smi::FromInt(StackFrame::ARGUMENTS_ADAPTOR);
172 173 174
}


175
inline bool StandardFrame::IsConstructFrame(Address fp) {
176 177 178
  Object* frame_type =
      Memory::Object_at(fp + TypedFrameConstants::kFrameTypeOffset);
  return frame_type == Smi::FromInt(StackFrame::CONSTRUCT);
179 180
}

181
inline JavaScriptFrame::JavaScriptFrame(StackFrameIteratorBase* iterator)
182
    : StandardFrame(iterator) {}
183

184 185
Address JavaScriptFrame::GetParameterSlot(int index) const {
  int param_count = ComputeParametersCount();
186
  DCHECK(-1 <= index && index < param_count);
187 188 189 190
  int parameter_offset = (param_count - index - 1) * kPointerSize;
  return caller_sp() + parameter_offset;
}

191 192
inline Address JavaScriptFrame::GetOperandSlot(int index) const {
  Address base = fp() + JavaScriptFrameConstants::kLocal0Offset;
193 194 195 196
  DCHECK(IsAddressAligned(base, kPointerSize));
  DCHECK_EQ(type(), JAVA_SCRIPT);
  DCHECK_LT(index, ComputeOperandsCount());
  DCHECK_LE(0, index);
197 198 199 200 201 202 203 204 205 206 207 208 209 210 211
  // Operand stack grows down.
  return base - index * kPointerSize;
}


inline Object* JavaScriptFrame::GetOperand(int index) const {
  return Memory::Object_at(GetOperandSlot(index));
}


inline int JavaScriptFrame::ComputeOperandsCount() const {
  Address base = fp() + JavaScriptFrameConstants::kLocal0Offset;
  // Base points to low address of first operand and stack grows down, so add
  // kPointerSize to get the actual stack size.
  intptr_t stack_size_in_bytes = (base + kPointerSize) - sp();
212 213 214
  DCHECK(IsAligned(stack_size_in_bytes, kPointerSize));
  DCHECK(type() == JAVA_SCRIPT);
  DCHECK(stack_size_in_bytes >= 0);
215
  return static_cast<int>(stack_size_in_bytes >> kPointerSizeLog2);
216 217 218
}


219
inline void JavaScriptFrame::set_receiver(Object* value) {
220
  Memory::Object_at(GetParameterSlot(-1)) = value;
221 222 223 224 225 226 227 228
}


inline bool JavaScriptFrame::has_adapted_arguments() const {
  return IsArgumentsAdaptorFrame(caller_fp());
}


229 230 231 232 233
inline Object* JavaScriptFrame::function_slot_object() const {
  const int offset = JavaScriptFrameConstants::kFunctionOffset;
  return Memory::Object_at(fp() + offset);
}

234
inline StubFrame::StubFrame(StackFrameIteratorBase* iterator)
235 236 237 238
    : StandardFrame(iterator) {
}


239
inline OptimizedFrame::OptimizedFrame(StackFrameIteratorBase* iterator)
240
    : JavaScriptFrame(iterator) {
241 242 243
}


244 245 246 247
inline InterpretedFrame::InterpretedFrame(StackFrameIteratorBase* iterator)
    : JavaScriptFrame(iterator) {}


248
inline ArgumentsAdaptorFrame::ArgumentsAdaptorFrame(
249
    StackFrameIteratorBase* iterator) : JavaScriptFrame(iterator) {
250 251
}

252 253 254
inline BuiltinFrame::BuiltinFrame(StackFrameIteratorBase* iterator)
    : JavaScriptFrame(iterator) {}

255 256
inline WasmFrame::WasmFrame(StackFrameIteratorBase* iterator)
    : StandardFrame(iterator) {}
257

258
inline WasmToJsFrame::WasmToJsFrame(StackFrameIteratorBase* iterator)
259
    : StubFrame(iterator) {}
260 261

inline JsToWasmFrame::JsToWasmFrame(StackFrameIteratorBase* iterator)
262
    : StubFrame(iterator) {}
263

264
inline InternalFrame::InternalFrame(StackFrameIteratorBase* iterator)
265 266 267 268
    : StandardFrame(iterator) {
}


269
inline StubFailureTrampolineFrame::StubFailureTrampolineFrame(
270
    StackFrameIteratorBase* iterator) : StandardFrame(iterator) {
271 272 273
}


274
inline ConstructFrame::ConstructFrame(StackFrameIteratorBase* iterator)
275 276 277
    : InternalFrame(iterator) {
}

278
inline JavaScriptFrameIterator::JavaScriptFrameIterator(
279 280 281 282 283
    Isolate* isolate)
    : iterator_(isolate) {
  if (!done()) Advance();
}

284
inline JavaScriptFrameIterator::JavaScriptFrameIterator(
285 286 287 288 289
    Isolate* isolate, ThreadLocalTop* top)
    : iterator_(isolate, top) {
  if (!done()) Advance();
}

290
inline JavaScriptFrame* JavaScriptFrameIterator::frame() const {
291 292 293 294 295
  // TODO(1233797): The frame hierarchy needs to change. It's
  // problematic that we can't use the safe-cast operator to cast to
  // the JavaScript frame type, because we may encounter arguments
  // adaptor frames.
  StackFrame* frame = iterator_.frame();
296
  DCHECK(frame->is_java_script() || frame->is_arguments_adaptor());
297 298 299
  return static_cast<JavaScriptFrame*>(frame);
}

300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321
inline StandardFrame* StackTraceFrameIterator::frame() const {
  StackFrame* frame = iterator_.frame();
  DCHECK(frame->is_java_script() || frame->is_arguments_adaptor() ||
         frame->is_wasm());
  return static_cast<StandardFrame*>(frame);
}

bool StackTraceFrameIterator::is_javascript() const {
  return frame()->is_java_script();
}

bool StackTraceFrameIterator::is_wasm() const { return frame()->is_wasm(); }

JavaScriptFrame* StackTraceFrameIterator::javascript_frame() const {
  DCHECK(is_javascript());
  return static_cast<JavaScriptFrame*>(frame());
}

WasmFrame* StackTraceFrameIterator::wasm_frame() const {
  DCHECK(is_wasm());
  return static_cast<WasmFrame*>(frame());
}
322

323
inline StackFrame* SafeStackFrameIterator::frame() const {
324
  DCHECK(!done());
325 326
  DCHECK(frame_->is_java_script() || frame_->is_exit() ||
         frame_->is_builtin_exit());
327
  return frame_;
328 329 330
}


331 332
}  // namespace internal
}  // namespace v8
333 334

#endif  // V8_FRAMES_INL_H_