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lj_arch.h
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/*
** Target architecture selection.
** Copyright (C) 2005-2013 Mike Pall. See Copyright Notice in luajit.h
*/
#ifndef _LJ_ARCH_H
#define _LJ_ARCH_H
#include "lua.h"
/* Target endianess. */
#define LUAJIT_LE 0
#define LUAJIT_BE 1
/* Target architectures. */
#define LUAJIT_ARCH_X86 1
#define LUAJIT_ARCH_x86 1
#define LUAJIT_ARCH_X64 2
#define LUAJIT_ARCH_x64 2
#define LUAJIT_ARCH_ARM 3
#define LUAJIT_ARCH_arm 3
#define LUAJIT_ARCH_PPC 4
#define LUAJIT_ARCH_ppc 4
#define LUAJIT_ARCH_PPCSPE 5
#define LUAJIT_ARCH_ppcspe 5
#define LUAJIT_ARCH_MIPS 6
#define LUAJIT_ARCH_mips 6
/* Target OS. */
#define LUAJIT_OS_OTHER 0
#define LUAJIT_OS_WINDOWS 1
#define LUAJIT_OS_LINUX 2
#define LUAJIT_OS_OSX 3
#define LUAJIT_OS_BSD 4
#define LUAJIT_OS_POSIX 5
/* Select native target if no target defined. */
#ifndef LUAJIT_TARGET
#if defined(__i386) || defined(__i386__) || defined(_M_IX86)
#define LUAJIT_TARGET LUAJIT_ARCH_X86
#elif defined(__x86_64__) || defined(__x86_64) || defined(_M_X64) || defined(_M_AMD64)
#define LUAJIT_TARGET LUAJIT_ARCH_X64
#elif defined(__arm__) || defined(__arm) || defined(__ARM__) || defined(__ARM)
#define LUAJIT_TARGET LUAJIT_ARCH_ARM
#elif defined(__ppc__) || defined(__ppc) || defined(__PPC__) || defined(__PPC) || defined(__powerpc__) || defined(__powerpc) || defined(__POWERPC__) || defined(__POWERPC) || defined(_M_PPC)
#ifdef __NO_FPRS__
#define LUAJIT_TARGET LUAJIT_ARCH_PPCSPE
#else
#define LUAJIT_TARGET LUAJIT_ARCH_PPC
#endif
#elif defined(__mips__) || defined(__mips) || defined(__MIPS__) || defined(__MIPS)
#define LUAJIT_TARGET LUAJIT_ARCH_MIPS
#else
#error "No support for this architecture (yet)"
#endif
#endif
/* Select native OS if no target OS defined. */
#ifndef LUAJIT_OS
#if defined(_WIN32) && !defined(_XBOX_VER)
#define LUAJIT_OS LUAJIT_OS_WINDOWS
#elif defined(__linux__)
#define LUAJIT_OS LUAJIT_OS_LINUX
#elif defined(__MACH__) && defined(__APPLE__)
#define LUAJIT_OS LUAJIT_OS_OSX
#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || \
defined(__NetBSD__) || defined(__OpenBSD__)
#define LUAJIT_OS LUAJIT_OS_BSD
#elif (defined(__sun__) && defined(__svr4__)) || defined(__CYGWIN__)
#define LUAJIT_OS LUAJIT_OS_POSIX
#else
#define LUAJIT_OS LUAJIT_OS_OTHER
#endif
#endif
/* Set target OS properties. */
#if LUAJIT_OS == LUAJIT_OS_WINDOWS
#define LJ_OS_NAME "Windows"
#elif LUAJIT_OS == LUAJIT_OS_LINUX
#define LJ_OS_NAME "Linux"
#elif LUAJIT_OS == LUAJIT_OS_OSX
#define LJ_OS_NAME "OSX"
#elif LUAJIT_OS == LUAJIT_OS_BSD
#define LJ_OS_NAME "BSD"
#elif LUAJIT_OS == LUAJIT_OS_POSIX
#define LJ_OS_NAME "POSIX"
#else
#define LJ_OS_NAME "Other"
#endif
#define LJ_TARGET_WINDOWS (LUAJIT_OS == LUAJIT_OS_WINDOWS)
#define LJ_TARGET_LINUX (LUAJIT_OS == LUAJIT_OS_LINUX)
#define LJ_TARGET_OSX (LUAJIT_OS == LUAJIT_OS_OSX)
#define LJ_TARGET_IOS (LJ_TARGET_OSX && LUAJIT_TARGET == LUAJIT_ARCH_ARM)
#define LJ_TARGET_POSIX (LUAJIT_OS > LUAJIT_OS_WINDOWS)
#define LJ_TARGET_DLOPEN LJ_TARGET_POSIX
#ifdef __CELLOS_LV2__
#define LJ_TARGET_PS3 1
#define LJ_TARGET_CONSOLE 1
#endif
#if _XBOX_VER >= 200
#define LJ_TARGET_XBOX360 1
#define LJ_TARGET_CONSOLE 1
#endif
#define LJ_NUMMODE_SINGLE 0 /* Single-number mode only. */
#define LJ_NUMMODE_SINGLE_DUAL 1 /* Default to single-number mode. */
#define LJ_NUMMODE_DUAL 2 /* Dual-number mode only. */
#define LJ_NUMMODE_DUAL_SINGLE 3 /* Default to dual-number mode. */
/* Set target architecture properties. */
#if LUAJIT_TARGET == LUAJIT_ARCH_X86
#define LJ_ARCH_NAME "x86"
#define LJ_ARCH_BITS 32
#define LJ_ARCH_ENDIAN LUAJIT_LE
#if LJ_TARGET_WINDOWS || __CYGWIN__
#define LJ_ABI_WIN 1
#else
#define LJ_ABI_WIN 0
#endif
#define LJ_TARGET_X86 1
#define LJ_TARGET_X86ORX64 1
#define LJ_TARGET_EHRETREG 0
#define LJ_TARGET_MASKSHIFT 1
#define LJ_TARGET_MASKROT 1
#define LJ_TARGET_UNALIGNED 1
#define LJ_ARCH_NUMMODE LJ_NUMMODE_SINGLE_DUAL
#elif LUAJIT_TARGET == LUAJIT_ARCH_X64
#define LJ_ARCH_NAME "x64"
#define LJ_ARCH_BITS 64
#define LJ_ARCH_ENDIAN LUAJIT_LE
#define LJ_ABI_WIN LJ_TARGET_WINDOWS
#define LJ_TARGET_X64 1
#define LJ_TARGET_X86ORX64 1
#define LJ_TARGET_EHRETREG 0
#define LJ_TARGET_JUMPRANGE 31 /* +-2^31 = +-2GB */
#define LJ_TARGET_MASKSHIFT 1
#define LJ_TARGET_MASKROT 1
#define LJ_TARGET_UNALIGNED 1
#define LJ_ARCH_NUMMODE LJ_NUMMODE_SINGLE_DUAL
#elif LUAJIT_TARGET == LUAJIT_ARCH_ARM
#define LJ_ARCH_NAME "arm"
#define LJ_ARCH_BITS 32
#define LJ_ARCH_ENDIAN LUAJIT_LE
#if !defined(LJ_ARCH_HASFPU) && __SOFTFP__
#define LJ_ARCH_HASFPU 0
#endif
#if !defined(LJ_ABI_SOFTFP) && !__ARM_PCS_VFP
#define LJ_ABI_SOFTFP 1
#endif
#define LJ_ABI_EABI 1
#define LJ_TARGET_ARM 1
#define LJ_TARGET_EHRETREG 0
#define LJ_TARGET_JUMPRANGE 25 /* +-2^25 = +-32MB */
#define LJ_TARGET_MASKSHIFT 0
#define LJ_TARGET_MASKROT 1
#define LJ_TARGET_UNIFYROT 2 /* Want only IR_BROR. */
#define LJ_ARCH_NUMMODE LJ_NUMMODE_DUAL
#if __ARM_ARCH_7__ || __ARM_ARCH_7A__ || __ARM_ARCH_7R__ || __ARM_ARCH_7S__
#define LJ_ARCH_VERSION 70
#elif __ARM_ARCH_6T2__
#define LJ_ARCH_VERSION 61
#elif __ARM_ARCH_6__ || __ARM_ARCH_6J__ || __ARM_ARCH_6K__ || __ARM_ARCH_6Z__ || __ARM_ARCH_6ZK__
#define LJ_ARCH_VERSION 60
#else
#define LJ_ARCH_VERSION 50
#endif
#elif LUAJIT_TARGET == LUAJIT_ARCH_PPC
#define LJ_ARCH_NAME "ppc"
#if _LP64
#define LJ_ARCH_BITS 64
#else
#define LJ_ARCH_BITS 32
#endif
#define LJ_ARCH_ENDIAN LUAJIT_BE
#define LJ_TARGET_PPC 1
#define LJ_TARGET_EHRETREG 3
#define LJ_TARGET_JUMPRANGE 25 /* +-2^25 = +-32MB */
#define LJ_TARGET_MASKSHIFT 0
#define LJ_TARGET_MASKROT 1
#define LJ_TARGET_UNIFYROT 1 /* Want only IR_BROL. */
#define LJ_ARCH_NUMMODE LJ_NUMMODE_DUAL_SINGLE
#if _ARCH_PWR7
#define LJ_ARCH_VERSION 70
#elif _ARCH_PWR6
#define LJ_ARCH_VERSION 60
#elif _ARCH_PWR5X
#define LJ_ARCH_VERSION 51
#elif _ARCH_PWR5
#define LJ_ARCH_VERSION 50
#elif _ARCH_PWR4
#define LJ_ARCH_VERSION 40
#else
#define LJ_ARCH_VERSION 0
#endif
#if __PPC64__ || __powerpc64__ || LJ_TARGET_CONSOLE
#define LJ_ARCH_PPC64 1
#define LJ_ARCH_NOFFI 1
#endif
#if _ARCH_PPCSQ
#define LJ_ARCH_SQRT 1
#endif
#if _ARCH_PWR5X
#define LJ_ARCH_ROUND 1
#endif
#if __PPU__
#define LJ_ARCH_CELL 1
#endif
#if LJ_TARGET_XBOX360
#define LJ_ARCH_XENON 1
#endif
#elif LUAJIT_TARGET == LUAJIT_ARCH_PPCSPE
#define LJ_ARCH_NAME "ppcspe"
#define LJ_ARCH_BITS 32
#define LJ_ARCH_ENDIAN LUAJIT_BE
#ifndef LJ_ABI_SOFTFP
#define LJ_ABI_SOFTFP 1
#endif
#define LJ_ABI_EABI 1
#define LJ_TARGET_PPCSPE 1
#define LJ_TARGET_EHRETREG 3
#define LJ_TARGET_JUMPRANGE 25 /* +-2^25 = +-32MB */
#define LJ_TARGET_MASKSHIFT 0
#define LJ_TARGET_MASKROT 1
#define LJ_TARGET_UNIFYROT 1 /* Want only IR_BROL. */
#define LJ_ARCH_NUMMODE LJ_NUMMODE_SINGLE
#define LJ_ARCH_NOFFI 1 /* NYI: comparisons, calls. */
#define LJ_ARCH_NOJIT 1
#elif LUAJIT_TARGET == LUAJIT_ARCH_MIPS
#if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL)
#define LJ_ARCH_NAME "mipsel"
#define LJ_ARCH_ENDIAN LUAJIT_LE
#else
#define LJ_ARCH_NAME "mips"
#define LJ_ARCH_ENDIAN LUAJIT_BE
#endif
#define LJ_ARCH_BITS 32
#define LJ_TARGET_MIPS 1
#define LJ_TARGET_EHRETREG 4
#define LJ_TARGET_JUMPRANGE 27 /* 2*2^27 = 256MB-aligned region */
#define LJ_TARGET_MASKSHIFT 1
#define LJ_TARGET_MASKROT 1
#define LJ_TARGET_UNIFYROT 2 /* Want only IR_BROR. */
#define LJ_ARCH_NUMMODE LJ_NUMMODE_SINGLE
#if _MIPS_ARCH_MIPS32R2
#define LJ_ARCH_VERSION 20
#else
#define LJ_ARCH_VERSION 10
#endif
#else
#error "No target architecture defined"
#endif
#ifndef LJ_PAGESIZE
#define LJ_PAGESIZE 4096
#endif
/* Check for minimum required compiler versions. */
#if defined(__GNUC__)
#if LJ_TARGET_X86
#if (__GNUC__ < 3) || ((__GNUC__ == 3) && __GNUC_MINOR__ < 4)
#error "Need at least GCC 3.4 or newer"
#endif
#elif LJ_TARGET_X64
#if __GNUC__ < 4
#error "Need at least GCC 4.0 or newer"
#endif
#elif LJ_TARGET_ARM
#if (__GNUC__ < 4) || ((__GNUC__ == 4) && __GNUC_MINOR__ < 2)
#error "Need at least GCC 4.2 or newer"
#endif
#elif !LJ_TARGET_PS3
#if (__GNUC__ < 4) || ((__GNUC__ == 4) && __GNUC_MINOR__ < 3)
#error "Need at least GCC 4.3 or newer"
#endif
#endif
#endif
/* Check target-specific constraints. */
#ifndef _BUILDVM_H
#if LJ_TARGET_X64
#if __USING_SJLJ_EXCEPTIONS__
#error "Need a C compiler with native exception handling on x64"
#endif
#elif LJ_TARGET_ARM
#if defined(__ARMEB__)
#error "No support for big-endian ARM"
#endif
#if __ARM_ARCH_6M__ || __ARM_ARCH_7M__ || __ARM_ARCH_7EM__
#error "No support for Cortex-M CPUs"
#endif
#if !(__ARM_EABI__ || LJ_TARGET_IOS)
#error "Only ARM EABI or iOS 3.0+ ABI is supported"
#endif
#elif LJ_TARGET_PPC || LJ_TARGET_PPCSPE
#if defined(_SOFT_FLOAT) || defined(_SOFT_DOUBLE)
#error "No support for PowerPC CPUs without double-precision FPU"
#endif
#if defined(_LITTLE_ENDIAN)
#error "No support for little-endian PowerPC"
#endif
#if defined(_LP64)
#error "No support for PowerPC 64 bit mode"
#endif
#elif LJ_TARGET_MIPS
#if defined(__mips_soft_float)
#error "No support for MIPS CPUs without FPU"
#endif
#endif
#endif
/* Enable or disable the dual-number mode for the VM. */
#if (LJ_ARCH_NUMMODE == LJ_NUMMODE_SINGLE && LUAJIT_NUMMODE == 2) || \
(LJ_ARCH_NUMMODE == LJ_NUMMODE_DUAL && LUAJIT_NUMMODE == 1)
#error "No support for this number mode on this architecture"
#endif
#if LJ_ARCH_NUMMODE == LJ_NUMMODE_DUAL || \
(LJ_ARCH_NUMMODE == LJ_NUMMODE_DUAL_SINGLE && LUAJIT_NUMMODE != 1) || \
(LJ_ARCH_NUMMODE == LJ_NUMMODE_SINGLE_DUAL && LUAJIT_NUMMODE == 2)
#define LJ_DUALNUM 1
#else
#define LJ_DUALNUM 0
#endif
#if LJ_TARGET_IOS || LJ_TARGET_CONSOLE
/* Runtime code generation is restricted on iOS. Complain to Apple, not me. */
/* Ditto for the consoles. Complain to Sony or MS, not me. */
#ifndef LUAJIT_ENABLE_JIT
#define LJ_OS_NOJIT 1
#endif
#endif
/* Disable or enable the JIT compiler. */
#if defined(LUAJIT_DISABLE_JIT) || defined(LJ_ARCH_NOJIT) || defined(LJ_OS_NOJIT)
#define LJ_HASJIT 0
#else
#define LJ_HASJIT 1
#endif
/* Disable or enable the FFI extension. */
#if defined(LUAJIT_DISABLE_FFI) || defined(LJ_ARCH_NOFFI)
#define LJ_HASFFI 0
#else
#define LJ_HASFFI 1
#endif
#ifndef LJ_ARCH_HASFPU
#define LJ_ARCH_HASFPU 1
#endif
#ifndef LJ_ABI_SOFTFP
#define LJ_ABI_SOFTFP 0
#endif
#define LJ_SOFTFP (!LJ_ARCH_HASFPU)
#if LJ_ARCH_ENDIAN == LUAJIT_BE
#define LJ_LE 0
#define LJ_BE 1
#define LJ_ENDIAN_SELECT(le, be) be
#define LJ_ENDIAN_LOHI(lo, hi) hi lo
#else
#define LJ_LE 1
#define LJ_BE 0
#define LJ_ENDIAN_SELECT(le, be) le
#define LJ_ENDIAN_LOHI(lo, hi) lo hi
#endif
#if LJ_ARCH_BITS == 32
#define LJ_32 1
#define LJ_64 0
#else
#define LJ_32 0
#define LJ_64 1
#endif
#ifndef LJ_TARGET_UNALIGNED
#define LJ_TARGET_UNALIGNED 0
#endif
/* Various workarounds for embedded operating systems. */
#if (defined(__ANDROID__) && !defined(LJ_TARGET_X86ORX64)) || defined(__symbian__) || LJ_TARGET_XBOX360
#define LUAJIT_NO_LOG2
#endif
#if defined(__symbian__)
#define LUAJIT_NO_EXP2
#endif
#if defined(LUAJIT_NO_UNWIND) || defined(__symbian__) || LJ_TARGET_IOS || LJ_TARGET_PS3
#define LJ_NO_UNWIND 1
#endif
/* Compatibility with Lua 5.1 vs. 5.2. */
#ifdef LUAJIT_ENABLE_LUA52COMPAT
#define LJ_52 1
#else
#define LJ_52 0
#endif
#endif