diff options
Diffstat (limited to 'Source/JavaScriptCore/jit/JITOpcodes.cpp')
| -rw-r--r-- | Source/JavaScriptCore/jit/JITOpcodes.cpp | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/Source/JavaScriptCore/jit/JITOpcodes.cpp b/Source/JavaScriptCore/jit/JITOpcodes.cpp index 9f0ce3a77..36e7ece1b 100644 --- a/Source/JavaScriptCore/jit/JITOpcodes.cpp +++ b/Source/JavaScriptCore/jit/JITOpcodes.cpp @@ -244,6 +244,7 @@ JIT::Label JIT::privateCompileCTINativeCall(JSGlobalData* globalData, bool isCon peek(regT1); emitPutToCallFrameHeader(regT1, JSStack::ReturnPC); +#if !OS(WINDOWS) // Calling convention: f(edi, esi, edx, ecx, ...); // Host function signature: f(ExecState*); move(callFrameRegister, X86Registers::edi); @@ -256,6 +257,21 @@ JIT::Label JIT::privateCompileCTINativeCall(JSGlobalData* globalData, bool isCon call(Address(X86Registers::r9, executableOffsetToFunction)); addPtr(TrustedImm32(16 - sizeof(int64_t)), stackPointerRegister); +#else + // Calling convention: f(ecx, edx, r8, r9, ...); + // Host function signature: f(ExecState*); + move(callFrameRegister, X86Registers::ecx); + + // Leave space for the callee parameter home addresses and align the stack. + subPtr(TrustedImm32(4 * sizeof(int64_t) + 16 - sizeof(int64_t)), stackPointerRegister); + + emitGetFromCallFrameHeaderPtr(JSStack::Callee, X86Registers::edx); + loadPtr(Address(X86Registers::edx, OBJECT_OFFSETOF(JSFunction, m_executable)), X86Registers::r9); + move(regT0, callFrameRegister); // Eagerly restore caller frame register to avoid loading from stack. + call(Address(X86Registers::r9, executableOffsetToFunction)); + + addPtr(TrustedImm32(4 * sizeof(int64_t) + 16 - sizeof(int64_t)), stackPointerRegister); +#endif #elif CPU(ARM) // Load caller frame's scope chain into this callframe so that whatever we call can |