485 lines
15 KiB
C
485 lines
15 KiB
C
/*
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* Stack-less Just-In-Time compiler
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*
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* Copyright 2009-2012 Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification, are
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* permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this list of
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* conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice, this list
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* of conditions and the following disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _SLJIT_CONFIG_INTERNAL_H_
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#define _SLJIT_CONFIG_INTERNAL_H_
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/*
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SLJIT defines the following macros depending on the target architecture:
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Feature detection (boolean) macros:
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SLJIT_32BIT_ARCHITECTURE : 32 bit architecture
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SLJIT_64BIT_ARCHITECTURE : 64 bit architecture
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SLJIT_WORD_SHIFT : the shift required to apply when accessing a sljit_sw/sljit_uw array by index
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SLJIT_DOUBLE_SHIFT : the shift required to apply when accessing a double array by index
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SLJIT_LITTLE_ENDIAN : little endian architecture
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SLJIT_BIG_ENDIAN : big endian architecture
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SLJIT_UNALIGNED : allows unaligned memory accesses for non-fpu operations (only!)
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SLJIT_INDIRECT_CALL : see SLJIT_FUNC_OFFSET() for more information
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SLJIT_RETURN_ADDRESS_OFFSET : a return instruction always adds this offset to the return address
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Types and useful macros:
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sljit_sb, sljit_ub : signed and unsigned 8 bit byte
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sljit_sh, sljit_uh : signed and unsigned 16 bit half-word (short) type
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sljit_si, sljit_ui : signed and unsigned 32 bit integer type
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sljit_sw, sljit_uw : signed and unsigned machine word, enough to store a pointer
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sljit_p : unsgined pointer value (usually the same as sljit_uw, but
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some 64 bit ABIs may use 32 bit pointers)
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sljit_s : single precision floating point value
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sljit_d : double precision floating point value
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SLJIT_CALL : C calling convention define for both calling JIT form C and C callbacks for JIT
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SLJIT_W(number) : defining 64 bit constants on 64 bit architectures (compiler independent helper)
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*/
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#if !((defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) \
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|| (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) \
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|| (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5) \
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|| (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7) \
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|| (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2) \
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|| (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) \
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|| (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) \
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|| (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) \
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|| (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) \
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|| (defined SLJIT_CONFIG_AUTO && SLJIT_CONFIG_AUTO) \
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|| (defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED))
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#error "An architecture must be selected"
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#endif
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/* Sanity check. */
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#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) \
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+ (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) \
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+ (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5) \
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+ (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7) \
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+ (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2) \
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+ (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) \
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+ (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) \
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+ (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) \
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+ (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) \
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+ (defined SLJIT_CONFIG_AUTO && SLJIT_CONFIG_AUTO) \
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+ (defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED) >= 2
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#error "Multiple architectures are selected"
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#endif
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/* Auto select option (requires compiler support) */
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#if (defined SLJIT_CONFIG_AUTO && SLJIT_CONFIG_AUTO)
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#ifndef _WIN32
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#if defined(__i386__) || defined(__i386)
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#define SLJIT_CONFIG_X86_32 1
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#elif defined(__x86_64__)
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#define SLJIT_CONFIG_X86_64 1
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#elif defined(__arm__) || defined(__ARM__)
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#ifdef __thumb2__
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#define SLJIT_CONFIG_ARM_THUMB2 1
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#elif defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7R__)
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#define SLJIT_CONFIG_ARM_V7 1
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#else
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#define SLJIT_CONFIG_ARM_V5 1
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#endif
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#elif defined(__ppc64__) || defined(__powerpc64__) || defined(_ARCH_PPC64) || (defined(_POWER) && defined(__64BIT__))
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#define SLJIT_CONFIG_PPC_64 1
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#elif defined(__ppc__) || defined(__powerpc__) || defined(_ARCH_PPC) || defined(_ARCH_PWR) || defined(_ARCH_PWR2) || defined(_POWER)
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#define SLJIT_CONFIG_PPC_32 1
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#elif defined(__mips__)
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#define SLJIT_CONFIG_MIPS_32 1
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#elif defined(__sparc__) || defined(__sparc)
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#define SLJIT_CONFIG_SPARC_32 1
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#else
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/* Unsupported architecture */
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#define SLJIT_CONFIG_UNSUPPORTED 1
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#endif
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#else /* !_WIN32 */
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#if defined(_M_X64) || defined(__x86_64__)
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#define SLJIT_CONFIG_X86_64 1
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#elif defined(_ARM_)
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#define SLJIT_CONFIG_ARM_V5 1
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#else
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#define SLJIT_CONFIG_X86_32 1
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#endif
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#endif /* !WIN32 */
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#endif /* SLJIT_CONFIG_AUTO */
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#if (defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED)
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#undef SLJIT_EXECUTABLE_ALLOCATOR
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#endif
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#if !(defined SLJIT_STD_MACROS_DEFINED && SLJIT_STD_MACROS_DEFINED)
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/* These libraries are needed for the macros below. */
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#include <stdlib.h>
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#include <string.h>
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#endif /* STD_MACROS_DEFINED */
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/* General macros:
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Note: SLJIT is designed to be independent from them as possible.
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In release mode (SLJIT_DEBUG is not defined) only the following macros are needed:
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*/
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#ifndef SLJIT_MALLOC
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#define SLJIT_MALLOC(size) malloc(size)
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#endif
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#ifndef SLJIT_FREE
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#define SLJIT_FREE(ptr) free(ptr)
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#endif
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#ifndef SLJIT_MEMMOVE
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#define SLJIT_MEMMOVE(dest, src, len) memmove(dest, src, len)
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#endif
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#ifndef SLJIT_ZEROMEM
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#define SLJIT_ZEROMEM(dest, len) memset(dest, 0, len)
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#endif
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#if !defined(SLJIT_LIKELY) && !defined(SLJIT_UNLIKELY)
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#if defined(__GNUC__) && (__GNUC__ >= 3)
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#define SLJIT_LIKELY(x) __builtin_expect((x), 1)
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#define SLJIT_UNLIKELY(x) __builtin_expect((x), 0)
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#else
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#define SLJIT_LIKELY(x) (x)
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#define SLJIT_UNLIKELY(x) (x)
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#endif
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#endif /* !defined(SLJIT_LIKELY) && !defined(SLJIT_UNLIKELY) */
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#ifndef SLJIT_INLINE
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/* Inline functions. */
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#define SLJIT_INLINE __inline
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#endif
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#ifndef SLJIT_CONST
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/* Const variables. */
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#define SLJIT_CONST const
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#endif
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#ifndef SLJIT_UNUSED_ARG
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/* Unused arguments. */
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#define SLJIT_UNUSED_ARG(arg) (void)arg
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#endif
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#if (defined SLJIT_CONFIG_STATIC && SLJIT_CONFIG_STATIC)
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/* Static ABI functions. For all-in-one programs. */
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#if defined(__GNUC__)
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/* Disable unused warnings in gcc. */
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#define SLJIT_API_FUNC_ATTRIBUTE static __attribute__((unused))
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#else
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#define SLJIT_API_FUNC_ATTRIBUTE static
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#endif
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#else
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#define SLJIT_API_FUNC_ATTRIBUTE
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#endif /* (defined SLJIT_CONFIG_STATIC && SLJIT_CONFIG_STATIC) */
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#ifndef SLJIT_CACHE_FLUSH
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#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) || (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
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/* Not required to implement on archs with unified caches. */
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#define SLJIT_CACHE_FLUSH(from, to)
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#elif defined __APPLE__
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/* Supported by all macs since Mac OS 10.5.
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However, it does not work on non-jailbroken iOS devices,
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although the compilation is successful. */
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#define SLJIT_CACHE_FLUSH(from, to) \
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sys_icache_invalidate((char*)(from), (char*)(to) - (char*)(from))
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#elif (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) || (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
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/* The __clear_cache() implementation of GCC is a dummy function on PowerPC. */
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#define SLJIT_CACHE_FLUSH(from, to) \
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ppc_cache_flush((from), (to))
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#elif (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
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/* The __clear_cache() implementation of GCC is a dummy function on Sparc. */
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#define SLJIT_CACHE_FLUSH(from, to) \
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sparc_cache_flush((from), (to))
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#else
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/* Calls __ARM_NR_cacheflush on ARM-Linux. */
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#define SLJIT_CACHE_FLUSH(from, to) \
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__clear_cache((char*)(from), (char*)(to))
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#endif
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#endif /* !SLJIT_CACHE_FLUSH */
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/* 8 bit byte type. */
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typedef unsigned char sljit_ub;
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typedef signed char sljit_sb;
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/* 16 bit half-word type. */
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typedef unsigned short int sljit_uh;
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typedef signed short int sljit_sh;
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/* 32 bit integer type. */
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typedef unsigned int sljit_ui;
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typedef signed int sljit_si;
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/* Machine word type. Can encapsulate a pointer.
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32 bit for 32 bit machines.
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64 bit for 64 bit machines. */
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#if (defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED)
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/* Just to have something. */
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#define SLJIT_WORD_SHIFT 0
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typedef unsigned long int sljit_uw;
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typedef long int sljit_sw;
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#elif !(defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) && !(defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
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#define SLJIT_32BIT_ARCHITECTURE 1
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#define SLJIT_WORD_SHIFT 2
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typedef unsigned int sljit_uw;
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typedef int sljit_sw;
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#else
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#define SLJIT_64BIT_ARCHITECTURE 1
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#define SLJIT_WORD_SHIFT 3
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#ifdef _WIN32
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typedef unsigned __int64 sljit_uw;
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typedef __int64 sljit_sw;
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#else
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typedef unsigned long int sljit_uw;
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typedef long int sljit_sw;
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#endif
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#endif
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typedef sljit_uw sljit_p;
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/* Floating point types. */
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typedef float sljit_s;
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typedef double sljit_d;
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/* Shift for pointer sized data. */
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#define SLJIT_POINTER_SHIFT SLJIT_WORD_SHIFT
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/* Shift for double precision sized data. */
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#define SLJIT_DOUBLE_SHIFT 3
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#ifndef SLJIT_W
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/* Defining long constants. */
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#if (defined SLJIT_64BIT_ARCHITECTURE && SLJIT_64BIT_ARCHITECTURE)
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#define SLJIT_W(w) (w##ll)
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#else
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#define SLJIT_W(w) (w)
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#endif
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#endif /* !SLJIT_W */
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#ifndef SLJIT_CALL
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/* ABI (Application Binary Interface) types. */
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#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
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#if defined(__GNUC__)
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#define SLJIT_CALL __attribute__ ((fastcall))
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#define SLJIT_X86_32_FASTCALL 1
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#elif defined(_MSC_VER)
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#define SLJIT_CALL __fastcall
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#define SLJIT_X86_32_FASTCALL 1
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#elif defined(__BORLANDC__)
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#define SLJIT_CALL __msfastcall
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#define SLJIT_X86_32_FASTCALL 1
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#else /* Unknown compiler. */
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/* The cdecl attribute is the default. */
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#define SLJIT_CALL
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#endif
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#else /* Non x86-32 architectures. */
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#define SLJIT_CALL
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#endif /* SLJIT_CONFIG_X86_32 */
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#endif /* !SLJIT_CALL */
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#if !defined(SLJIT_BIG_ENDIAN) && !defined(SLJIT_LITTLE_ENDIAN)
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/* These macros are useful for the application. */
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#if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) \
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|| (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) \
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|| (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
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#define SLJIT_BIG_ENDIAN 1
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#elif (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
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#ifdef __MIPSEL__
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#define SLJIT_LITTLE_ENDIAN 1
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#else
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#define SLJIT_BIG_ENDIAN 1
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#endif
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#else
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#define SLJIT_LITTLE_ENDIAN 1
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#endif
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#endif /* !defined(SLJIT_BIG_ENDIAN) && !defined(SLJIT_LITTLE_ENDIAN) */
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/* Sanity check. */
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#if (defined SLJIT_BIG_ENDIAN && SLJIT_BIG_ENDIAN) && (defined SLJIT_LITTLE_ENDIAN && SLJIT_LITTLE_ENDIAN)
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#error "Exactly one endianness must be selected"
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#endif
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#if !(defined SLJIT_BIG_ENDIAN && SLJIT_BIG_ENDIAN) && !(defined SLJIT_LITTLE_ENDIAN && SLJIT_LITTLE_ENDIAN)
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#error "Exactly one endianness must be selected"
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#endif
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#ifndef SLJIT_INDIRECT_CALL
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#if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) || (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32 && defined _AIX)
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/* It seems certain ppc compilers use an indirect addressing for functions
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which makes things complicated. */
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#define SLJIT_INDIRECT_CALL 1
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#endif
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#endif /* SLJIT_INDIRECT_CALL */
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#ifndef SLJIT_RETURN_ADDRESS_OFFSET
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#if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
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#define SLJIT_RETURN_ADDRESS_OFFSET 8
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#else
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#define SLJIT_RETURN_ADDRESS_OFFSET 0
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#endif
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#endif /* SLJIT_RETURN_ADDRESS_OFFSET */
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#ifndef SLJIT_SSE2
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#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) || (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
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/* Turn on SSE2 support on x86. */
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#define SLJIT_SSE2 1
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#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
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/* Auto detect SSE2 support using CPUID.
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On 64 bit x86 cpus, sse2 must be present. */
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#define SLJIT_DETECT_SSE2 1
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#endif
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#endif /* (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) || (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) */
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#endif /* !SLJIT_SSE2 */
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#ifndef SLJIT_UNALIGNED
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#if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) \
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|| (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) \
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|| (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7) \
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|| (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2) \
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|| (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) \
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|| (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
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#define SLJIT_UNALIGNED 1
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#endif
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#endif /* !SLJIT_UNALIGNED */
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#if (defined SLJIT_EXECUTABLE_ALLOCATOR && SLJIT_EXECUTABLE_ALLOCATOR)
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SLJIT_API_FUNC_ATTRIBUTE void* sljit_malloc_exec(sljit_uw size);
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SLJIT_API_FUNC_ATTRIBUTE void sljit_free_exec(void* ptr);
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#define SLJIT_MALLOC_EXEC(size) sljit_malloc_exec(size)
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#define SLJIT_FREE_EXEC(ptr) sljit_free_exec(ptr)
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#endif
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#if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
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#include <stdio.h>
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#endif
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#if (defined SLJIT_DEBUG && SLJIT_DEBUG)
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#if !defined(SLJIT_ASSERT) || !defined(SLJIT_ASSERT_STOP)
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/* SLJIT_HALT_PROCESS must halt the process. */
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#ifndef SLJIT_HALT_PROCESS
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#include <stdlib.h>
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#define SLJIT_HALT_PROCESS() \
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abort();
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#endif /* !SLJIT_HALT_PROCESS */
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#include <stdio.h>
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#endif /* !SLJIT_ASSERT || !SLJIT_ASSERT_STOP */
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/* Feel free to redefine these two macros. */
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#ifndef SLJIT_ASSERT
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#define SLJIT_ASSERT(x) \
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do { \
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if (SLJIT_UNLIKELY(!(x))) { \
|
|
printf("Assertion failed at " __FILE__ ":%d\n", __LINE__); \
|
|
SLJIT_HALT_PROCESS(); \
|
|
} \
|
|
} while (0)
|
|
|
|
#endif /* !SLJIT_ASSERT */
|
|
|
|
#ifndef SLJIT_ASSERT_STOP
|
|
|
|
#define SLJIT_ASSERT_STOP() \
|
|
do { \
|
|
printf("Should never been reached " __FILE__ ":%d\n", __LINE__); \
|
|
SLJIT_HALT_PROCESS(); \
|
|
} while (0)
|
|
|
|
#endif /* !SLJIT_ASSERT_STOP */
|
|
|
|
#else /* (defined SLJIT_DEBUG && SLJIT_DEBUG) */
|
|
|
|
/* Forcing empty, but valid statements. */
|
|
#undef SLJIT_ASSERT
|
|
#undef SLJIT_ASSERT_STOP
|
|
|
|
#define SLJIT_ASSERT(x) \
|
|
do { } while (0)
|
|
#define SLJIT_ASSERT_STOP() \
|
|
do { } while (0)
|
|
|
|
#endif /* (defined SLJIT_DEBUG && SLJIT_DEBUG) */
|
|
|
|
#ifndef SLJIT_COMPILE_ASSERT
|
|
|
|
/* Should be improved eventually. */
|
|
#define SLJIT_COMPILE_ASSERT(x, description) \
|
|
SLJIT_ASSERT(x)
|
|
|
|
#endif /* !SLJIT_COMPILE_ASSERT */
|
|
|
|
#endif
|