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mikepaul-LuaJIT/src/lj_arch.h
Mike Pall 2e2fb8f6b5 OSX/iOS: Handle iOS simulator and ARM64 Macs.
2020-06-23 03:24:40 +02:00

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/*
** Target architecture selection.
** Copyright (C) 2005-2020 Mike Pall. See Copyright Notice in luajit.h
*/
#ifndef _LJ_ARCH_H
#define _LJ_ARCH_H
#include "lua.h"
/* -- Target definitions -------------------------------------------------- */
/* 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_ARM64 4
#define LUAJIT_ARCH_arm64 4
#define LUAJIT_ARCH_PPC 5
#define LUAJIT_ARCH_ppc 5
#define LUAJIT_ARCH_MIPS 6
#define LUAJIT_ARCH_mips 6
#define LUAJIT_ARCH_MIPS32 6
#define LUAJIT_ARCH_mips32 6
#define LUAJIT_ARCH_MIPS64 7
#define LUAJIT_ARCH_mips64 7
/* 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
/* Number mode. */
#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. */
/* -- Target detection ---------------------------------------------------- */
/* 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(__aarch64__)
#define LUAJIT_TARGET LUAJIT_ARCH_ARM64
#elif defined(__ppc__) || defined(__ppc) || defined(__PPC__) || defined(__PPC) || defined(__powerpc__) || defined(__powerpc) || defined(__POWERPC__) || defined(__POWERPC) || defined(_M_PPC)
#define LUAJIT_TARGET LUAJIT_ARCH_PPC
#elif defined(__mips64__) || defined(__mips64) || defined(__MIPS64__) || defined(__MIPS64)
#define LUAJIT_TARGET LUAJIT_ARCH_MIPS64
#elif defined(__mips__) || defined(__mips) || defined(__MIPS__) || defined(__MIPS)
#define LUAJIT_TARGET LUAJIT_ARCH_MIPS32
#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__)
#include "TargetConditionals.h"
#define LUAJIT_OS LUAJIT_OS_OSX
#elif (defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || \
defined(__NetBSD__) || defined(__OpenBSD__) || \
defined(__DragonFly__)) && !defined(__ORBIS__)
#define LUAJIT_OS LUAJIT_OS_BSD
#elif (defined(__sun__) && defined(__svr4__))
#define LJ_TARGET_SOLARIS 1
#define LUAJIT_OS LUAJIT_OS_POSIX
#elif defined(__HAIKU__)
#define LUAJIT_OS LUAJIT_OS_POSIX
#elif defined(__CYGWIN__)
#define LJ_TARGET_CYGWIN 1
#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_BSD (LUAJIT_OS == LUAJIT_OS_BSD)
#define LJ_TARGET_POSIX (LUAJIT_OS > LUAJIT_OS_WINDOWS)
#define LJ_TARGET_DLOPEN LJ_TARGET_POSIX
#if TARGET_OS_IPHONE
#define LJ_TARGET_IOS 1
#else
#define LJ_TARGET_IOS 0
#endif
#ifdef __CELLOS_LV2__
#define LJ_TARGET_PS3 1
#define LJ_TARGET_CONSOLE 1
#endif
#ifdef __ORBIS__
#define LJ_TARGET_PS4 1
#define LJ_TARGET_CONSOLE 1
#undef NULL
#define NULL ((void*)0)
#endif
#ifdef __psp2__
#define LJ_TARGET_PSVITA 1
#define LJ_TARGET_CONSOLE 1
#endif
#if _XBOX_VER >= 200
#define LJ_TARGET_XBOX360 1
#define LJ_TARGET_CONSOLE 1
#endif
#ifdef _DURANGO
#define LJ_TARGET_XBOXONE 1
#define LJ_TARGET_CONSOLE 1
#define LJ_TARGET_GC64 1
#endif
#ifdef _UWP
#define LJ_TARGET_UWP 1
#if LUAJIT_TARGET == LUAJIT_ARCH_X64
#define LJ_TARGET_GC64 1
#endif
#endif
/* -- Arch-specific settings ---------------------------------------------- */
/* 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 || LJ_TARGET_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
#if LJ_TARGET_WINDOWS || LJ_TARGET_CYGWIN
#define LJ_ABI_WIN 1
#else
#define LJ_ABI_WIN 0
#endif
#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
#ifndef LUAJIT_DISABLE_GC64
#define LJ_TARGET_GC64 1
#endif
#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 == 8 || __ARM_ARCH_8__ || __ARM_ARCH_8A__
#define LJ_ARCH_VERSION 80
#elif __ARM_ARCH == 7 || __ARM_ARCH_7__ || __ARM_ARCH_7A__ || __ARM_ARCH_7R__ || __ARM_ARCH_7S__ || __ARM_ARCH_7VE__
#define LJ_ARCH_VERSION 70
#elif __ARM_ARCH_6T2__
#define LJ_ARCH_VERSION 61
#elif __ARM_ARCH == 6 || __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_ARM64
#define LJ_ARCH_BITS 64
#if defined(__AARCH64EB__)
#define LJ_ARCH_NAME "arm64be"
#define LJ_ARCH_ENDIAN LUAJIT_BE
#else
#define LJ_ARCH_NAME "arm64"
#define LJ_ARCH_ENDIAN LUAJIT_LE
#endif
#define LJ_TARGET_ARM64 1
#define LJ_TARGET_EHRETREG 0
#define LJ_TARGET_JUMPRANGE 27 /* +-2^27 = +-128MB */
#define LJ_TARGET_MASKSHIFT 1
#define LJ_TARGET_MASKROT 1
#define LJ_TARGET_UNIFYROT 2 /* Want only IR_BROR. */
#define LJ_TARGET_GC64 1
#define LJ_ARCH_NUMMODE LJ_NUMMODE_DUAL
#define LJ_ARCH_VERSION 80
#elif LUAJIT_TARGET == LUAJIT_ARCH_PPC
#ifndef LJ_ARCH_ENDIAN
#if __BYTE_ORDER__ != __ORDER_BIG_ENDIAN__
#define LJ_ARCH_ENDIAN LUAJIT_LE
#else
#define LJ_ARCH_ENDIAN LUAJIT_BE
#endif
#endif
#if _LP64
#define LJ_ARCH_BITS 64
#if LJ_ARCH_ENDIAN == LUAJIT_LE
#define LJ_ARCH_NAME "ppc64le"
#else
#define LJ_ARCH_NAME "ppc64"
#endif
#else
#define LJ_ARCH_BITS 32
#define LJ_ARCH_NAME "ppc"
#if !defined(LJ_ARCH_HASFPU)
#if defined(_SOFT_FLOAT) || defined(_SOFT_DOUBLE)
#define LJ_ARCH_HASFPU 0
#else
#define LJ_ARCH_HASFPU 1
#endif
#endif
#if !defined(LJ_ABI_SOFTFP)
#if defined(_SOFT_FLOAT) || defined(_SOFT_DOUBLE)
#define LJ_ABI_SOFTFP 1
#else
#define LJ_ABI_SOFTFP 0
#endif
#endif
#endif
#if LJ_ABI_SOFTFP
#define LJ_ARCH_NUMMODE LJ_NUMMODE_DUAL
#else
#define LJ_ARCH_NUMMODE LJ_NUMMODE_DUAL_SINGLE
#endif
#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. */
#if LJ_TARGET_CONSOLE
#define LJ_ARCH_PPC32ON64 1
#define LJ_ARCH_NOFFI 1
#elif LJ_ARCH_BITS == 64
#error "No support for PPC64"
#endif
#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 _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_MIPS32 || LUAJIT_TARGET == LUAJIT_ARCH_MIPS64
#if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL)
#if __mips_isa_rev >= 6
#define LJ_TARGET_MIPSR6 1
#define LJ_TARGET_UNALIGNED 1
#endif
#if LUAJIT_TARGET == LUAJIT_ARCH_MIPS32
#if LJ_TARGET_MIPSR6
#define LJ_ARCH_NAME "mips32r6el"
#else
#define LJ_ARCH_NAME "mipsel"
#endif
#else
#if LJ_TARGET_MIPSR6
#define LJ_ARCH_NAME "mips64r6el"
#else
#define LJ_ARCH_NAME "mips64el"
#endif
#endif
#define LJ_ARCH_ENDIAN LUAJIT_LE
#else
#if LUAJIT_TARGET == LUAJIT_ARCH_MIPS32
#if LJ_TARGET_MIPSR6
#define LJ_ARCH_NAME "mips32r6"
#else
#define LJ_ARCH_NAME "mips"
#endif
#else
#if LJ_TARGET_MIPSR6
#define LJ_ARCH_NAME "mips64r6"
#else
#define LJ_ARCH_NAME "mips64"
#endif
#endif
#define LJ_ARCH_ENDIAN LUAJIT_BE
#endif
#if !defined(LJ_ARCH_HASFPU)
#ifdef __mips_soft_float
#define LJ_ARCH_HASFPU 0
#else
#define LJ_ARCH_HASFPU 1
#endif
#endif
#if !defined(LJ_ABI_SOFTFP)
#ifdef __mips_soft_float
#define LJ_ABI_SOFTFP 1
#else
#define LJ_ABI_SOFTFP 0
#endif
#endif
#if LUAJIT_TARGET == LUAJIT_ARCH_MIPS32
#define LJ_ARCH_BITS 32
#define LJ_TARGET_MIPS32 1
#else
#define LJ_ARCH_BITS 64
#define LJ_TARGET_MIPS64 1
#define LJ_TARGET_GC64 1
#endif
#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_DUAL
#if LJ_TARGET_MIPSR6
#define LJ_ARCH_VERSION 60
#elif _MIPS_ARCH_MIPS32R2 || _MIPS_ARCH_MIPS64R2
#define LJ_ARCH_VERSION 20
#else
#define LJ_ARCH_VERSION 10
#endif
#else
#error "No target architecture defined"
#endif
/* -- Checks for requirements --------------------------------------------- */
/* 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_ARM64
#if __clang__
#if ((__clang_major__ < 3) || ((__clang_major__ == 3) && __clang_minor__ < 5)) && !defined(__NX_TOOLCHAIN_MAJOR__)
#error "Need at least Clang 3.5 or newer"
#endif
#else
#if (__GNUC__ < 4) || ((__GNUC__ == 4) && __GNUC_MINOR__ < 8)
#error "Need at least GCC 4.8 or newer"
#endif
#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_ARM64
#if defined(_ILP32)
#error "No support for ILP32 model on ARM64"
#endif
#elif LJ_TARGET_PPC
#if defined(_LITTLE_ENDIAN) && (!defined(_BYTE_ORDER) || (_BYTE_ORDER == _LITTLE_ENDIAN))
#error "No support for little-endian PPC32"
#endif
#if defined(__NO_FPRS__) && !defined(_SOFT_FLOAT)
#error "No support for PPC/e500 anymore (use LuaJIT 2.0)"
#endif
#elif LJ_TARGET_MIPS32
#if !((defined(_MIPS_SIM_ABI32) && _MIPS_SIM == _MIPS_SIM_ABI32) || (defined(_ABIO32) && _MIPS_SIM == _ABIO32))
#error "Only o32 ABI supported for MIPS32"
#endif
#if LJ_TARGET_MIPSR6
/* Not that useful, since most available r6 CPUs are 64 bit. */
#error "No support for MIPS32R6"
#endif
#elif LJ_TARGET_MIPS64
#if !((defined(_MIPS_SIM_ABI64) && _MIPS_SIM == _MIPS_SIM_ABI64) || (defined(_ABI64) && _MIPS_SIM == _ABI64))
/* MIPS32ON64 aka n32 ABI support might be desirable, but difficult. */
#error "Only n64 ABI supported for MIPS64"
#endif
#endif
#endif
/* -- Derived defines ----------------------------------------------------- */
/* 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
/* 64 bit GC references. */
#if LJ_TARGET_GC64
#define LJ_GC64 1
#else
#define LJ_GC64 0
#endif
/* 2-slot frame info. */
#if LJ_GC64
#define LJ_FR2 1
#else
#define LJ_FR2 0
#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
#if defined(LUAJIT_DISABLE_PROFILE)
#define LJ_HASPROFILE 0
#elif LJ_TARGET_POSIX
#define LJ_HASPROFILE 1
#define LJ_PROFILE_SIGPROF 1
#elif LJ_TARGET_PS3
#define LJ_HASPROFILE 1
#define LJ_PROFILE_PTHREAD 1
#elif LJ_TARGET_WINDOWS || LJ_TARGET_XBOX360
#define LJ_HASPROFILE 1
#define LJ_PROFILE_WTHREAD 1
#else
#define LJ_HASPROFILE 0
#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)
#define LJ_SOFTFP32 (LJ_SOFTFP && LJ_32)
#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
#ifndef LJ_PAGESIZE
#define LJ_PAGESIZE 4096
#endif
/* Various workarounds for embedded operating systems or weak C runtimes. */
#if defined(__ANDROID__) || defined(__symbian__) || LJ_TARGET_XBOX360 || LJ_TARGET_WINDOWS
#define LUAJIT_NO_LOG2
#endif
#if LJ_TARGET_CONSOLE || (LJ_TARGET_IOS && __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_8_0)
#define LJ_NO_SYSTEM 1
#endif
#if !defined(LUAJIT_NO_UNWIND) && __GNU_COMPACT_EH__
/* NYI: no support for compact unwind specification, yet. */
#define LUAJIT_NO_UNWIND 1
#endif
#if defined(LUAJIT_NO_UNWIND) || defined(__symbian__) || LJ_TARGET_IOS || LJ_TARGET_PS3 || LJ_TARGET_PS4
#define LJ_NO_UNWIND 1
#endif
#if LJ_TARGET_WINDOWS
#if LJ_TARGET_UWP
#define LJ_WIN_VALLOC VirtualAllocFromApp
#define LJ_WIN_VPROTECT VirtualProtectFromApp
extern void *LJ_WIN_LOADLIBA(const char *path);
#else
#define LJ_WIN_VALLOC VirtualAlloc
#define LJ_WIN_VPROTECT VirtualProtect
#define LJ_WIN_LOADLIBA(path) LoadLibraryExA((path), NULL, 0)
#endif
#endif
/* Compatibility with Lua 5.1 vs. 5.2. */
#ifdef LUAJIT_ENABLE_LUA52COMPAT
#define LJ_52 1
#else
#define LJ_52 0
#endif
/* -- VM security --------------------------------------------------------- */
/* Don't make any changes here. Instead build with:
** make "XCFLAGS=-DLUAJIT_SECURITY_flag=value"
**
** Important note to distro maintainers: DO NOT change the defaults for a
** regular distro build -- neither upwards, nor downwards!
** These build-time configurable security flags are intended for embedders
** who may have specific needs wrt. security vs. performance.
*/
/* Security defaults. */
#ifndef LUAJIT_SECURITY_PRNG
/* PRNG init: 0 = fixed/insecure, 1 = secure from OS. */
#define LUAJIT_SECURITY_PRNG 1
#endif
#ifndef LUAJIT_SECURITY_STRHASH
/* String hash: 0 = sparse only, 1 = sparse + dense. */
#define LUAJIT_SECURITY_STRHASH 1
#endif
#ifndef LUAJIT_SECURITY_STRID
/* String IDs: 0 = linear, 1 = reseed < 255, 2 = reseed < 15, 3 = random. */
#define LUAJIT_SECURITY_STRID 1
#endif
#ifndef LUAJIT_SECURITY_MCODE
/* Machine code page protection: 0 = insecure RWX, 1 = secure RW^X. */
#define LUAJIT_SECURITY_MCODE 1
#endif
#define LJ_SECURITY_MODE \
( 0u \
| ((LUAJIT_SECURITY_PRNG & 3) << 0) \
| ((LUAJIT_SECURITY_STRHASH & 3) << 2) \
| ((LUAJIT_SECURITY_STRID & 3) << 4) \
| ((LUAJIT_SECURITY_MCODE & 3) << 6) \
)
#define LJ_SECURITY_MODESTRING \
"\004prng\007strhash\005strid\005mcode"
#endif
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