mirror of
https://github.com/LuaJIT/LuaJIT.git
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148 lines
3.4 KiB
C
148 lines
3.4 KiB
C
/*
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** Target architecture selection.
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** Copyright (C) 2005-2010 Mike Pall. See Copyright Notice in luajit.h
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*/
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#ifndef _LJ_ARCH_H
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#define _LJ_ARCH_H
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#include "lua.h"
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/* Target endianess. */
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#define LUAJIT_LE 0
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#define LUAJIT_BE 1
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/* Target architectures. */
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#define LUAJIT_ARCH_X86 1
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#define LUAJIT_ARCH_x86 1
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#define LUAJIT_ARCH_X64 2
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#define LUAJIT_ARCH_x64 2
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#define LUAJIT_ARCH_PPC 3
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#define LUAJIT_ARCH_ppc 3
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#define LUAJIT_ARCH_PPCSPE 4
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#define LUAJIT_ARCH_ppcspe 4
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/* Select native target if no target defined. */
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#ifndef LUAJIT_TARGET
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#if defined(__i386) || defined(__i386__) || defined(_M_IX86)
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#define LUAJIT_TARGET LUAJIT_ARCH_X86
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#elif defined(__x86_64__) || defined(__x86_64) || defined(_M_X64) || defined(_M_AMD64)
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#define LUAJIT_TARGET LUAJIT_ARCH_X64
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#elif defined(__ppc__) || defined(__ppc) || defined(__PPC__) || defined(__PPC) || defined(__powerpc__) || defined(__powerpc) || defined(__POWERPC__) || defined(__POWERPC) || defined(_M_PPC)
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#ifdef __NO_FPRS__
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#define LUAJIT_TARGET LUAJIT_ARCH_PPCSPE
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#else
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#define LUAJIT_TARGET LUAJIT_ARCH_PPC
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#endif
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#else
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#error "No support for this architecture (yet)"
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#endif
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#endif
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/* Set target properties. */
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#if LUAJIT_TARGET == LUAJIT_ARCH_X86
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#define LJ_ARCH_NAME "x86"
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#define LJ_ARCH_BITS 32
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#define LJ_ARCH_ENDIAN LUAJIT_LE
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#define LJ_TARGET_X86 1
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#define LJ_TARGET_X86ORX64 1
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#define LJ_PAGESIZE 4096
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#define LJ_TARGET_EHRETREG 0
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#define LJ_TARGET_MASKSHIFT 1
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#define LJ_TARGET_MASKROT 1
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#elif LUAJIT_TARGET == LUAJIT_ARCH_X64
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#define LJ_ARCH_NAME "x64"
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#define LJ_ARCH_BITS 64
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#define LJ_ARCH_ENDIAN LUAJIT_LE
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#define LJ_TARGET_X64 1
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#define LJ_TARGET_X86ORX64 1
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#define LJ_PAGESIZE 4096
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#define LJ_TARGET_EHRETREG 0
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#define LJ_TARGET_MASKSHIFT 1
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#define LJ_TARGET_MASKROT 1
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#elif LUAJIT_TARGET == LUAJIT_ARCH_PPC
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#error "No support for plain PowerPC CPUs (yet)"
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#elif LUAJIT_TARGET == LUAJIT_ARCH_PPCSPE
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#define LJ_ARCH_NAME "ppcspe"
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#define LJ_ARCH_BITS 32
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#define LJ_ARCH_ENDIAN LUAJIT_BE
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#define LJ_TARGET_PPC 1
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#define LJ_TARGET_PPCSPE 1
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#define LJ_PAGESIZE 4096
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#define LJ_TARGET_EHRETREG 3
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#define LJ_TARGET_MASKSHIFT 0
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#define LJ_TARGET_MASKROT 1
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#define LJ_ARCH_NOJIT 1
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#else
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#error "No target architecture defined"
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#endif
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/* Check for minimum required compiler versions. */
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#if defined(__GNUC__)
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#if LJ_TARGET_X64
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#if __GNUC__ < 4
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#error "Need at least GCC 4.0 or newer"
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#endif
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#elif LJ_TARGET_PPC
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#if (__GNUC__ < 4) || ((__GNUC__ == 4) && __GNUC_MINOR__ < 3)
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#error "Need at least GCC 4.3 or newer"
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#endif
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#else
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#if (__GNUC__ < 3) || ((__GNUC__ == 3) && __GNUC_MINOR__ < 4)
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#error "Need at least GCC 3.4 or newer"
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#endif
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#endif
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#endif
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/* Check target-specific constraints. */
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#ifndef _BUILDVM_H
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#if LJ_TARGET_PPC
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#if defined(_SOFT_FLOAT) || defined(_SOFT_DOUBLE)
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#error "No support for PowerPC CPUs without double-precision FPU"
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#endif
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#if defined(_LITTLE_ENDIAN)
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#error "No support for little-endian PowerPC"
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#endif
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#if defined(_LP64)
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#error "No support for PowerPC 64 bit mode"
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#endif
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#endif
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#endif
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/* Disable or enable the JIT compiler. */
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#if defined(LUAJIT_DISABLE_JIT) || defined(LJ_ARCH_NOJIT)
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#define LJ_HASJIT 0
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#else
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#define LJ_HASJIT 1
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#endif
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#if LJ_ARCH_ENDIAN == LUAJIT_BE
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#define LJ_ENDIAN_SELECT(le, be) be
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#define LJ_ENDIAN_LOHI(lo, hi) hi lo
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#else
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#define LJ_ENDIAN_SELECT(le, be) le
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#define LJ_ENDIAN_LOHI(lo, hi) lo hi
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#endif
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#if LJ_ARCH_BITS == 32
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#define LJ_32 1
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#define LJ_64 0
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#else
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#define LJ_32 0
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#define LJ_64 1
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#endif
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#endif
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