mirror of
https://github.com/hrydgard/ppsspp.git
synced 2024-10-08 03:13:25 +00:00
350 lines
7.0 KiB
C++
350 lines
7.0 KiB
C++
// Copyright 2008 Dolphin Emulator Project
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// Licensed under GPLv2+
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// Refer to the license.txt file included.
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// Note: If MACHINE_CONTEXT_SUPPORTED is not set after including this,
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// there is no access to the context from exception handlers (and possibly no exception handling support).
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#pragma once
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#include "ppsspp_config.h"
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#if PPSSPP_PLATFORM(WINDOWS) && !PPSSPP_PLATFORM(UWP)
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#include <windows.h>
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typedef CONTEXT SContext;
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#if defined(__LIBRETRO__)
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#elif PPSSPP_ARCH(AMD64)
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#define MACHINE_CONTEXT_SUPPORTED
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#define CTX_RAX Rax
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#define CTX_RBX Rbx
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#define CTX_RCX Rcx
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#define CTX_RDX Rdx
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#define CTX_RDI Rdi
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#define CTX_RSI Rsi
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#define CTX_RBP Rbp
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#define CTX_RSP Rsp
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#define CTX_R8 R8
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#define CTX_R9 R9
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#define CTX_R10 R10
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#define CTX_R11 R11
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#define CTX_R12 R12
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#define CTX_R13 R13
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#define CTX_R14 R14
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#define CTX_R15 R15
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#define CTX_RIP Rip
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#elif PPSSPP_ARCH(X86)
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#define MACHINE_CONTEXT_SUPPORTED
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#define CTX_RAX Eax
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#define CTX_RBX Ebx
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#define CTX_RCX Ecx
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#define CTX_RDX Edx
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#define CTX_RDI Edi
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#define CTX_RSI Esi
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#define CTX_RBP Ebp
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#define CTX_RSP Esp
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#define CTX_RIP Eip
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#elif PPSSPP_ARCH(ARM64)
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#define CTX_REG(x) X[x]
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#define CTX_SP Sp
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#define CTX_PC Pc
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#elif PPSSPP_ARCH(ARM)
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//#define CTX_REG(x) R##x
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#define CTX_SP Sp
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#define CTX_PC Pc
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#endif
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#elif PPSSPP_PLATFORM(MAC)
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// for modules:
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#define _XOPEN_SOURCE
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#include <ucontext.h>
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#include <mach/mach.h>
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#include <mach/message.h>
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#if PPSSPP_ARCH(AMD64)
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#define MACHINE_CONTEXT_SUPPORTED
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typedef x86_thread_state64_t SContext;
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#define CTX_RAX __rax
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#define CTX_RBX __rbx
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#define CTX_RCX __rcx
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#define CTX_RDX __rdx
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#define CTX_RDI __rdi
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#define CTX_RSI __rsi
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#define CTX_RBP __rbp
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#define CTX_RSP __rsp
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#define CTX_R8 __r8
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#define CTX_R9 __r9
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#define CTX_R10 __r10
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#define CTX_R11 __r11
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#define CTX_R12 __r12
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#define CTX_R13 __r13
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#define CTX_R14 __r14
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#define CTX_R15 __r15
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#define CTX_RIP __rip
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#else
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// No context definition for architecture
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#endif
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#elif defined(__linux__)
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#include <signal.h>
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#if PPSSPP_ARCH(AMD64)
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#include <ucontext.h>
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typedef mcontext_t SContext;
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#define MACHINE_CONTEXT_SUPPORTED
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#define CTX_RAX gregs[REG_RAX]
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#define CTX_RBX gregs[REG_RBX]
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#define CTX_RCX gregs[REG_RCX]
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#define CTX_RDX gregs[REG_RDX]
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#define CTX_RDI gregs[REG_RDI]
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#define CTX_RSI gregs[REG_RSI]
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#define CTX_RBP gregs[REG_RBP]
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#define CTX_RSP gregs[REG_RSP]
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#define CTX_R8 gregs[REG_R8]
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#define CTX_R9 gregs[REG_R9]
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#define CTX_R10 gregs[REG_R10]
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#define CTX_R11 gregs[REG_R11]
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#define CTX_R12 gregs[REG_R12]
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#define CTX_R13 gregs[REG_R13]
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#define CTX_R14 gregs[REG_R14]
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#define CTX_R15 gregs[REG_R15]
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#define CTX_RIP gregs[REG_RIP]
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#elif PPSSPP_ARCH(X86)
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#include <ucontext.h>
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typedef mcontext_t SContext;
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#define MACHINE_CONTEXT_SUPPORTED
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#define CTX_RAX gregs[REG_EAX]
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#define CTX_RBX gregs[REG_EBX]
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#define CTX_RCX gregs[REG_ECX]
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#define CTX_RDX gregs[REG_EDX]
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#define CTX_RDI gregs[REG_EDI]
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#define CTX_RSI gregs[REG_ESI]
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#define CTX_RBP gregs[REG_EBP]
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#define CTX_RSP gregs[REG_ESP]
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#define CTX_RIP gregs[REG_EIP]
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#elif PPSSPP_ARCH(ARM64)
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#define MACHINE_CONTEXT_SUPPORTED
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typedef sigcontext SContext;
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#define CTX_REG(x) regs[x]
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#define CTX_SP sp
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#define CTX_PC pc
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#elif PPSSPP_ARCH(ARM)
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#define MACHINE_CONTEXT_SUPPORTED
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typedef sigcontext SContext;
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#define CTX_PC arm_pc
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#define CTX_REG(x) regs[x]
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#else
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// No context definition for architecture
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#endif
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#elif defined(__OpenBSD__)
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#if PPSSPP_ARCH(AMD64)
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#include <signal.h>
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typedef ucontext_t SContext;
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#define MACHINE_CONTEXT_SUPPORTED
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#define CTX_RAX sc_rax
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#define CTX_RBX sc_rbx
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#define CTX_RCX sc_rcx
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#define CTX_RDX sc_rdx
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#define CTX_RDI sc_rdi
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#define CTX_RSI sc_rsi
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#define CTX_RBP sc_rbp
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#define CTX_RSP sc_rsp
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#define CTX_R8 sc_r8
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#define CTX_R9 sc_r9
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#define CTX_R10 sc_r10
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#define CTX_R11 sc_r11
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#define CTX_R12 sc_r12
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#define CTX_R13 sc_r13
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#define CTX_R14 sc_r14
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#define CTX_R15 sc_r15
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#define CTX_RIP sc_rip
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#else
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// No context definition for architecture
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#endif
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#elif defined(__NetBSD__)
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#if PPSSPP_ARCH(AMD64)
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#include <ucontext.h>
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typedef mcontext_t SContext;
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#define MACHINE_CONTEXT_SUPPORTED
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#define CTX_RAX __gregs[_REG_RAX]
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#define CTX_RBX __gregs[_REG_RBX]
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#define CTX_RCX __gregs[_REG_RCX]
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#define CTX_RDX __gregs[_REG_RDX]
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#define CTX_RDI __gregs[_REG_RDI]
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#define CTX_RSI __gregs[_REG_RSI]
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#define CTX_RBP __gregs[_REG_RBP]
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#define CTX_RSP __gregs[_REG_RSP]
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#define CTX_R8 __gregs[_REG_R8]
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#define CTX_R9 __gregs[_REG_R9]
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#define CTX_R10 __gregs[_REG_R10]
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#define CTX_R11 __gregs[_REG_R11]
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#define CTX_R12 __gregs[_REG_R12]
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#define CTX_R13 __gregs[_REG_R13]
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#define CTX_R14 __gregs[_REG_R14]
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#define CTX_R15 __gregs[_REG_R15]
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#define CTX_RIP __gregs[_REG_RIP]
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#else
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// No context definition for architecture
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#endif
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#elif defined(__FreeBSD__)
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#if PPSSPP_ARCH(AMD64)
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#include <ucontext.h>
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typedef mcontext_t SContext;
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#define MACHINE_CONTEXT_SUPPORTED
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#define CTX_RAX mc_rax
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#define CTX_RBX mc_rbx
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#define CTX_RCX mc_rcx
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#define CTX_RDX mc_rdx
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#define CTX_RDI mc_rdi
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#define CTX_RSI mc_rsi
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#define CTX_RBP mc_rbp
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#define CTX_RSP mc_rsp
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#define CTX_R8 mc_r8
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#define CTX_R9 mc_r9
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#define CTX_R10 mc_r10
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#define CTX_R11 mc_r11
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#define CTX_R12 mc_r12
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#define CTX_R13 mc_r13
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#define CTX_R14 mc_r14
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#define CTX_R15 mc_r15
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#define CTX_RIP mc_rip
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#else
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// No context definition for architecture
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#endif
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#elif defined(__HAIKU__)
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#if PPSSPP_ARCH(AMD64)
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#include <signal.h>
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typedef mcontext_t SContext;
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#define MACHINE_CONTEXT_SUPPORTED
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#define CTX_RAX rax
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#define CTX_RBX rbx
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#define CTX_RCX rcx
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#define CTX_RDX rdx
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#define CTX_RDI rdi
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#define CTX_RSI rsi
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#define CTX_RBP rbp
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#define CTX_RSP rsp
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#define CTX_R8 r8
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#define CTX_R9 r9
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#define CTX_R10 r10
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#define CTX_R11 r11
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#define CTX_R12 r12
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#define CTX_R13 r13
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#define CTX_R14 r14
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#define CTX_R15 r15
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#define CTX_RIP rip
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#else
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// No context definition for machine
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#endif
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#else
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// No context definition for OS
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#endif
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#ifdef MACHINE_CONTEXT_SUPPORTED
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#if PPSSPP_ARCH(AMD64)
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#include <cstdint>
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#include <stddef.h>
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#define CTX_PC CTX_RIP
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static inline uint64_t *ContextRN(SContext* ctx, int n) {
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static const uint8_t offsets[] = {
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offsetof(SContext, CTX_RAX), offsetof(SContext, CTX_RCX), offsetof(SContext, CTX_RDX),
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offsetof(SContext, CTX_RBX), offsetof(SContext, CTX_RSP), offsetof(SContext, CTX_RBP),
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offsetof(SContext, CTX_RSI), offsetof(SContext, CTX_RDI), offsetof(SContext, CTX_R8),
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offsetof(SContext, CTX_R9), offsetof(SContext, CTX_R10), offsetof(SContext, CTX_R11),
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offsetof(SContext, CTX_R12), offsetof(SContext, CTX_R13), offsetof(SContext, CTX_R14),
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offsetof(SContext, CTX_R15)};
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return (uint64_t *)((char *)ctx + offsets[n]);
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}
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#elif PPSSPP_ARCH(X86)
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#include <cstdint>
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#include <stddef.h>
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#define CTX_PC CTX_RIP
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static inline uint32_t *ContextRN(SContext* ctx, int n) {
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static const uint8_t offsets[] = {
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offsetof(SContext, CTX_RAX), offsetof(SContext, CTX_RCX), offsetof(SContext, CTX_RDX),
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offsetof(SContext, CTX_RBX), offsetof(SContext, CTX_RSP), offsetof(SContext, CTX_RBP),
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offsetof(SContext, CTX_RSI), offsetof(SContext, CTX_RDI)};
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return (uint32_t *)((char*)ctx + offsets[n]);
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}
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#endif // arch
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#endif // MACHINE_CONTEXT_SUPPORTED
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