diff options
Diffstat (limited to 'deps/v8/src/arm64/frame-constants-arm64.h')
| -rw-r--r-- | deps/v8/src/arm64/frame-constants-arm64.h | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/deps/v8/src/arm64/frame-constants-arm64.h b/deps/v8/src/arm64/frame-constants-arm64.h index 882a57a851..a337079786 100644 --- a/deps/v8/src/arm64/frame-constants-arm64.h +++ b/deps/v8/src/arm64/frame-constants-arm64.h @@ -8,10 +8,31 @@ namespace v8 { namespace internal { +// The layout of an EntryFrame is as follows: +// +// slot Entry frame +// +---------------------+----------------------- +// 0 | bad frame pointer | <-- frame ptr +// | (0xFFF.. FF) | +// |- - - - - - - - - - -| +// 1 | stack frame marker | +// | (ENTRY) | +// |- - - - - - - - - - -| +// 2 | stack frame marker | +// | (0) | +// |- - - - - - - - - - -| +// 3 | C entry FP | +// |- - - - - - - - - - -| +// 4 | JS entry frame | +// | marker | +// |- - - - - - - - - - -| +// 5 | padding | <-- stack ptr +// -----+---------------------+----------------------- +// class EntryFrameConstants : public AllStatic { public: - static const int kCallerFPOffset = - -(StandardFrameConstants::kFixedFrameSizeFromFp + kPointerSize); + static const int kCallerFPOffset = -3 * kPointerSize; + static const int kFixedFrameSize = 6 * kPointerSize; }; class ExitFrameConstants : public TypedFrameConstants { |