/* * Copyright (C) 2017 Yusuke Suzuki <utatane.tea@gmail.com> * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY GOOGLE, INC. ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #pragma once #include <wtf/Platform.h> #include <wtf/StdLibExtras.h> #if OS(DARWIN) #include <mach/thread_act.h> #include <signal.h> #elif OS(WINDOWS) #include <windows.h> #else #include <ucontext.h> #endif namespace WTF { #if OS(DARWIN) #if CPU(X86) typedef i386_thread_state_t PlatformRegisters; #elif CPU(X86_64) typedef x86_thread_state64_t PlatformRegisters; #elif CPU(PPC) typedef ppc_thread_state_t PlatformRegisters; #elif CPU(PPC64) typedef ppc_thread_state64_t PlatformRegisters; #elif CPU(ARM) typedef arm_thread_state_t PlatformRegisters; #elif CPU(ARM64) typedef arm_thread_state64_t PlatformRegisters; #else #error Unknown Architecture #endif inline PlatformRegisters& registersFromUContext(ucontext_t* ucontext) { return ucontext->uc_mcontext->__ss; } #elif OS(WINDOWS) using PlatformRegisters = CONTEXT; #elif HAVE(MACHINE_CONTEXT) struct PlatformRegisters { mcontext_t machineContext; }; inline PlatformRegisters& registersFromUContext(ucontext_t* ucontext) { #if CPU(PPC) return *bitwise_cast<PlatformRegisters*>(ucontext->uc_mcontext.uc_regs); #else return *bitwise_cast<PlatformRegisters*>(&ucontext->uc_mcontext); #endif } #else struct PlatformRegisters { void* stackPointer; }; #endif } // namespace WTF using WTF::PlatformRegisters;