| // Copyright (c) 2013, 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. |
| |
| #include "vm/globals.h" |
| #if defined(TARGET_ARCH_MIPS) |
| |
| #include "vm/stack_frame.h" |
| |
| namespace dart { |
| |
| // The constant kExitLinkOffsetInEntryFrame must be kept in sync with the |
| // code in the InvokeDartCode stub. |
| static const int kSavedContextOffsetInEntryFrame = -11 * kWordSize; |
| static const int kExitLinkOffsetInEntryFrame = -10 * kWordSize; |
| static const int kPcAddressOffsetFromSp = -2 * kWordSize; |
| static const int kEntrypointMarkerOffsetFromFp = 2 * kWordSize; |
| static const int kSpOffsetFromPreviousFp = 3 * kWordSize; |
| |
| |
| intptr_t StackFrame::PcAddressOffsetFromSp() { |
| return kPcAddressOffsetFromSp; |
| } |
| |
| |
| intptr_t StackFrame::EntrypointMarkerOffsetFromFp() { |
| return kEntrypointMarkerOffsetFromFp; |
| } |
| |
| |
| uword StackFrame::GetCallerFp() const { |
| return *(reinterpret_cast<uword*>(fp())); |
| } |
| |
| |
| uword StackFrame::GetCallerSp() const { |
| return fp() + kSpOffsetFromPreviousFp; |
| } |
| |
| |
| intptr_t EntryFrame::ExitLinkOffset() const { |
| return kExitLinkOffsetInEntryFrame; |
| } |
| |
| |
| intptr_t EntryFrame::SavedContextOffset() const { |
| return kSavedContextOffsetInEntryFrame; |
| } |
| |
| |
| void StackFrameIterator::SetupLastExitFrameData() { |
| Isolate* current = Isolate::Current(); |
| uword exit_marker = current->top_exit_frame_info(); |
| frames_.fp_ = exit_marker; |
| } |
| |
| |
| void StackFrameIterator::SetupNextExitFrameData() { |
| uword exit_address = entry_.fp() + kExitLinkOffsetInEntryFrame; |
| uword exit_marker = *reinterpret_cast<uword*>(exit_address); |
| frames_.fp_ = exit_marker; |
| frames_.sp_ = 0; |
| } |
| |
| } // namespace dart |
| |
| #endif // defined TARGET_ARCH_MIPS |