| /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- |
| * vim: set ts=8 sts=4 et sw=4 tw=99: |
| * This Source Code Form is subject to the terms of the Mozilla Public |
| * License, v. 2.0. If a copy of the MPL was not distributed with this |
| * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| |
| #ifndef jscpucfg_h |
| #define jscpucfg_h |
| |
| #define JS_HAVE_LONG_LONG |
| |
| #if defined(STARBOARD) |
| # include "starboard/configuration.h" |
| # if SB_IS(BIG_ENDIAN) |
| # define IS_BIG_ENDIAN 1 |
| # undef IS_LITTLE_ENDIAN |
| # else |
| # define IS_LITTLE_ENDIAN 1 |
| # undef IS_BIG_ENDIAN |
| # endif |
| #elif defined(_WIN64) |
| |
| # if defined(_M_X64) || defined(_M_AMD64) || defined(_AMD64_) |
| # define IS_LITTLE_ENDIAN 1 |
| # undef IS_BIG_ENDIAN |
| # else /* !(defined(_M_X64) || defined(_M_AMD64) || defined(_AMD64_)) */ |
| # error "CPU type is unknown" |
| # endif /* !(defined(_M_X64) || defined(_M_AMD64) || defined(_AMD64_)) */ |
| |
| #elif defined(_WIN32) |
| |
| # ifdef __WATCOMC__ |
| # define HAVE_VA_LIST_AS_ARRAY 1 |
| # endif |
| |
| # define IS_LITTLE_ENDIAN 1 |
| # undef IS_BIG_ENDIAN |
| |
| #elif defined(__APPLE__) || defined(__powerpc__) || defined(__ppc__) |
| # if __LITTLE_ENDIAN__ |
| # define IS_LITTLE_ENDIAN 1 |
| # undef IS_BIG_ENDIAN |
| # elif __BIG_ENDIAN__ |
| # undef IS_LITTLE_ENDIAN |
| # define IS_BIG_ENDIAN 1 |
| # endif |
| |
| #elif defined(JS_HAVE_ENDIAN_H) |
| # include <endian.h> |
| |
| /* |
| * Historically, OSes providing <endian.h> only defined |
| * __BYTE_ORDER to either __LITTLE_ENDIAN or __BIG_ENDIAN. |
| * The Austin group decided to standardise <endian.h> in |
| * POSIX around 2011, expecting it to provide a BYTE_ORDER |
| * #define set to either LITTLE_ENDIAN or BIG_ENDIAN. We |
| * should try to cope with both possibilities here. |
| */ |
| |
| # if defined(__BYTE_ORDER) || defined(BYTE_ORDER) |
| # if defined(__BYTE_ORDER) |
| # if __BYTE_ORDER == __LITTLE_ENDIAN |
| # define IS_LITTLE_ENDIAN 1 |
| # undef IS_BIG_ENDIAN |
| # elif __BYTE_ORDER == __BIG_ENDIAN |
| # undef IS_LITTLE_ENDIAN |
| # define IS_BIG_ENDIAN 1 |
| # endif |
| # endif |
| # if defined(BYTE_ORDER) |
| # if BYTE_ORDER == LITTLE_ENDIAN |
| # define IS_LITTLE_ENDIAN 1 |
| # undef IS_BIG_ENDIAN |
| # elif BYTE_ORDER == BIG_ENDIAN |
| # undef IS_LITTLE_ENDIAN |
| # define IS_BIG_ENDIAN 1 |
| # endif |
| # endif |
| # else /* !defined(__BYTE_ORDER) */ |
| # error "endian.h does not define __BYTE_ORDER nor BYTE_ORDER. Cannot determine endianness." |
| # endif |
| |
| /* BSDs */ |
| #elif defined(JS_HAVE_MACHINE_ENDIAN_H) |
| # include <sys/types.h> |
| # include <machine/endian.h> |
| |
| # if defined(_BYTE_ORDER) |
| # if _BYTE_ORDER == _LITTLE_ENDIAN |
| # define IS_LITTLE_ENDIAN 1 |
| # undef IS_BIG_ENDIAN |
| # elif _BYTE_ORDER == _BIG_ENDIAN |
| # undef IS_LITTLE_ENDIAN |
| # define IS_BIG_ENDIAN 1 |
| # endif |
| # else /* !defined(_BYTE_ORDER) */ |
| # error "machine/endian.h does not define _BYTE_ORDER. Cannot determine endianness." |
| # endif |
| |
| #elif defined(JS_HAVE_SYS_ISA_DEFS_H) |
| # include <sys/isa_defs.h> |
| |
| # if defined(_BIG_ENDIAN) |
| # undef IS_LITTLE_ENDIAN |
| # define IS_BIG_ENDIAN 1 |
| # elif defined(_LITTLE_ENDIAN) |
| # define IS_LITTLE_ENDIAN 1 |
| # undef IS_BIG_ENDIAN |
| # else /* !defined(_LITTLE_ENDIAN) */ |
| # error "sys/isa_defs.h does not define _BIG_ENDIAN or _LITTLE_ENDIAN. Cannot determine endianness." |
| # endif |
| # if !defined(JS_STACK_GROWTH_DIRECTION) |
| # if defined(_STACK_GROWS_UPWARD) |
| # define JS_STACK_GROWTH_DIRECTION (1) |
| # elif defined(_STACK_GROWS_DOWNWARD) |
| # define JS_STACK_GROWTH_DIRECTION (-1) |
| # endif |
| # endif |
| |
| #elif defined(__sparc) || defined(__sparc__) || \ |
| defined(_POWER) || defined(__hppa) || \ |
| defined(_MIPSEB) || defined(_BIG_ENDIAN) |
| /* IA64 running HP-UX will have _BIG_ENDIAN defined. |
| * IA64 running Linux will have endian.h and be handled above. |
| */ |
| # undef IS_LITTLE_ENDIAN |
| # define IS_BIG_ENDIAN 1 |
| |
| #else /* !defined(__sparc) && !defined(__sparc__) && ... */ |
| # error "Cannot determine endianness of your platform. Please add support to jscpucfg.h." |
| #endif |
| |
| #ifndef JS_STACK_GROWTH_DIRECTION |
| # ifdef __hppa |
| # define JS_STACK_GROWTH_DIRECTION (1) |
| # else |
| # define JS_STACK_GROWTH_DIRECTION (-1) |
| # endif |
| #endif |
| |
| #endif /* jscpucfg_h */ |
