| /* |
| * IDI,NTNU |
| * |
| * CDDL HEADER START |
| * |
| * The contents of this file are subject to the terms of the |
| * Common Development and Distribution License (the "License"). |
| * You may not use this file except in compliance with the License. |
| * |
| * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE |
| * or http://opensource.org/licenses/CDDL-1.0. |
| * See the License for the specific language governing permissions |
| * and limitations under the License. |
| * |
| * When distributing Covered Code, include this CDDL HEADER in each |
| * file and include the License file at usr/src/OPENSOLARIS.LICENSE. |
| * If applicable, add the following below this CDDL HEADER, with the |
| * fields enclosed by brackets "[]" replaced with your own identifying |
| * information: Portions Copyright [yyyy] [name of copyright owner] |
| * |
| * CDDL HEADER END |
| * |
| * Copyright (C) 2009, 2010, Jorn Amundsen <jorn.amundsen@ntnu.no> |
| * |
| * C header file to determine compile machine byte order. Take care when cross |
| * compiling. |
| * |
| * $Id: byteorder.h 517 2013-02-17 20:34:39Z joern $ |
| */ |
| /* |
| * Portions copyright (c) 2013, Saso Kiselkov, All rights reserved |
| */ |
| |
| #ifndef _CRYPTO_EDONR_BYTEORDER_H |
| #define _CRYPTO_EDONR_BYTEORDER_H |
| |
| #include <sys/sysmacros.h> |
| #include <sys/param.h> |
| |
| #if defined(__BYTE_ORDER) |
| #if (__BYTE_ORDER == __BIG_ENDIAN) |
| #define MACHINE_IS_BIG_ENDIAN |
| #elif (__BYTE_ORDER == __LITTLE_ENDIAN) |
| #define MACHINE_IS_LITTLE_ENDIAN |
| #endif |
| #elif defined(BYTE_ORDER) |
| #if (BYTE_ORDER == BIG_ENDIAN) |
| #define MACHINE_IS_BIG_ENDIAN |
| #elif (BYTE_ORDER == LITTLE_ENDIAN) |
| #define MACHINE_IS_LITTLE_ENDIAN |
| #endif |
| #endif /* __BYTE_ORDER || BYTE_ORDER */ |
| |
| #if !defined(MACHINE_IS_BIG_ENDIAN) && !defined(MACHINE_IS_LITTLE_ENDIAN) |
| #if defined(_BIG_ENDIAN) || defined(_MIPSEB) |
| #define MACHINE_IS_BIG_ENDIAN |
| #endif |
| #if defined(_LITTLE_ENDIAN) || defined(_MIPSEL) |
| #define MACHINE_IS_LITTLE_ENDIAN |
| #endif |
| #endif /* !MACHINE_IS_BIG_ENDIAN && !MACHINE_IS_LITTLE_ENDIAN */ |
| |
| #if !defined(MACHINE_IS_BIG_ENDIAN) && !defined(MACHINE_IS_LITTLE_ENDIAN) |
| #error unknown machine byte sex |
| #endif |
| |
| #define BYTEORDER_INCLUDED |
| |
| #if defined(MACHINE_IS_BIG_ENDIAN) |
| /* |
| * Byte swapping macros for big endian architectures and compilers, |
| * add as appropriate for other architectures and/or compilers. |
| * |
| * ld_swap64(src,dst) : uint64_t dst = *(src) |
| * st_swap64(src,dst) : *(dst) = uint64_t src |
| */ |
| |
| #if defined(__PPC__) || defined(_ARCH_PPC) |
| |
| #if defined(__64BIT__) |
| #if defined(_ARCH_PWR7) |
| #define aix_ld_swap64(s64, d64)\ |
| __asm__("ldbrx %0,0,%1" : "=r"(d64) : "r"(s64)) |
| #define aix_st_swap64(s64, d64)\ |
| __asm__ volatile("stdbrx %1,0,%0" : : "r"(d64), "r"(s64)) |
| #else |
| #define aix_ld_swap64(s64, d64) \ |
| { \ |
| uint64_t *s4 = 0, h; /* initialize to zero for gcc warning */ \ |
| \ |
| __asm__("addi %0,%3,4;lwbrx %1,0,%3;lwbrx %2,0,%0;rldimi %1,%2,32,0"\ |
| : "+r"(s4), "=r"(d64), "=r"(h) : "b"(s64)); \ |
| } |
| |
| #define aix_st_swap64(s64, d64) \ |
| { \ |
| uint64_t *s4 = 0, h; /* initialize to zero for gcc warning */ \ |
| h = (s64) >> 32; \ |
| __asm__ volatile("addi %0,%3,4;stwbrx %1,0,%3;stwbrx %2,0,%0" \ |
| : "+r"(s4) : "r"(s64), "r"(h), "b"(d64)); \ |
| } |
| #endif /* 64BIT && PWR7 */ |
| #else |
| #define aix_ld_swap64(s64, d64) \ |
| { \ |
| uint32_t *s4 = 0, h, l; /* initialize to zero for gcc warning */\ |
| __asm__("addi %0,%3,4;lwbrx %1,0,%3;lwbrx %2,0,%0" \ |
| : "+r"(s4), "=r"(l), "=r"(h) : "b"(s64)); \ |
| d64 = ((uint64_t)h<<32) | l; \ |
| } |
| |
| #define aix_st_swap64(s64, d64) \ |
| { \ |
| uint32_t *s4 = 0, h, l; /* initialize to zero for gcc warning */\ |
| l = (s64) & 0xfffffffful, h = (s64) >> 32; \ |
| __asm__ volatile("addi %0,%3,4;stwbrx %1,0,%3;stwbrx %2,0,%0" \ |
| : "+r"(s4) : "r"(l), "r"(h), "b"(d64)); \ |
| } |
| #endif /* __64BIT__ */ |
| #define aix_ld_swap32(s32, d32)\ |
| __asm__("lwbrx %0,0,%1" : "=r"(d32) : "r"(s32)) |
| #define aix_st_swap32(s32, d32)\ |
| __asm__ volatile("stwbrx %1,0,%0" : : "r"(d32), "r"(s32)) |
| #define ld_swap32(s, d) aix_ld_swap32(s, d) |
| #define st_swap32(s, d) aix_st_swap32(s, d) |
| #define ld_swap64(s, d) aix_ld_swap64(s, d) |
| #define st_swap64(s, d) aix_st_swap64(s, d) |
| #endif /* __PPC__ || _ARCH_PPC */ |
| |
| #if defined(__sparc) |
| #if !defined(__arch64__) && !defined(__sparcv8) && defined(__sparcv9) |
| #define __arch64__ |
| #endif |
| #if defined(__GNUC__) || (defined(__SUNPRO_C) && __SUNPRO_C > 0x590) |
| /* need Sun Studio C 5.10 and above for GNU inline assembly */ |
| #if defined(__arch64__) |
| #define sparc_ld_swap64(s64, d64) \ |
| __asm__("ldxa [%1]0x88,%0" : "=r"(d64) : "r"(s64)) |
| #define sparc_st_swap64(s64, d64) \ |
| __asm__ volatile("stxa %0,[%1]0x88" : : "r"(s64), "r"(d64)) |
| #define st_swap64(s, d) sparc_st_swap64(s, d) |
| #else |
| #define sparc_ld_swap64(s64, d64) \ |
| { \ |
| uint32_t *s4, h, l; \ |
| __asm__("add %3,4,%0\n\tlda [%3]0x88,%1\n\tlda [%0]0x88,%2" \ |
| : "+r"(s4), "=r"(l), "=r"(h) : "r"(s64)); \ |
| d64 = ((uint64_t)h<<32) | l; \ |
| } |
| #define sparc_st_swap64(s64, d64) \ |
| { \ |
| uint32_t *s4, h, l; \ |
| l = (s64) & 0xfffffffful, h = (s64) >> 32; \ |
| __asm__ volatile("add %3,4,%0\n\tsta %1,[%3]0x88\n\tsta %2,[%0]0x88"\ |
| : "+r"(s4) : "r"(l), "r"(h), "r"(d64)); \ |
| } |
| #endif /* sparc64 */ |
| #define sparc_ld_swap32(s32, d32)\ |
| __asm__("lda [%1]0x88,%0" : "=r"(d32) : "r"(s32)) |
| #define sparc_st_swap32(s32, d32)\ |
| __asm__ volatile("sta %0,[%1]0x88" : : "r"(s32), "r"(d32)) |
| #define ld_swap32(s, d) sparc_ld_swap32(s, d) |
| #define st_swap32(s, d) sparc_st_swap32(s, d) |
| #define ld_swap64(s, d) sparc_ld_swap64(s, d) |
| #define st_swap64(s, d) sparc_st_swap64(s, d) |
| #endif /* GCC || Sun Studio C > 5.9 */ |
| #endif /* sparc */ |
| |
| /* GCC fallback */ |
| #if ((__GNUC__ >= 4) || defined(__PGIC__)) && !defined(ld_swap32) |
| #define ld_swap32(s, d) (d = __builtin_bswap32(*(s))) |
| #define st_swap32(s, d) (*(d) = __builtin_bswap32(s)) |
| #endif /* GCC4/PGIC && !swap32 */ |
| #if ((__GNUC__ >= 4) || defined(__PGIC__)) && !defined(ld_swap64) |
| #define ld_swap64(s, d) (d = __builtin_bswap64(*(s))) |
| #define st_swap64(s, d) (*(d) = __builtin_bswap64(s)) |
| #endif /* GCC4/PGIC && !swap64 */ |
| |
| /* generic fallback */ |
| #if !defined(ld_swap32) |
| #define ld_swap32(s, d) \ |
| (d = (*(s) >> 24) | (*(s) >> 8 & 0xff00) | \ |
| (*(s) << 8 & 0xff0000) | (*(s) << 24)) |
| #define st_swap32(s, d) \ |
| (*(d) = ((s) >> 24) | ((s) >> 8 & 0xff00) | \ |
| ((s) << 8 & 0xff0000) | ((s) << 24)) |
| #endif |
| #if !defined(ld_swap64) |
| #define ld_swap64(s, d) \ |
| (d = (*(s) >> 56) | (*(s) >> 40 & 0xff00) | \ |
| (*(s) >> 24 & 0xff0000) | (*(s) >> 8 & 0xff000000) | \ |
| (*(s) & 0xff000000) << 8 | (*(s) & 0xff0000) << 24 | \ |
| (*(s) & 0xff00) << 40 | *(s) << 56) |
| #define st_swap64(s, d) \ |
| (*(d) = ((s) >> 56) | ((s) >> 40 & 0xff00) | \ |
| ((s) >> 24 & 0xff0000) | ((s) >> 8 & 0xff000000) | \ |
| ((s) & 0xff000000) << 8 | ((s) & 0xff0000) << 24 | \ |
| ((s) & 0xff00) << 40 | (s) << 56) |
| #endif |
| |
| #endif /* MACHINE_IS_BIG_ENDIAN */ |
| |
| |
| #if defined(MACHINE_IS_LITTLE_ENDIAN) |
| /* replace swaps with simple assignments on little endian systems */ |
| #undef ld_swap32 |
| #undef st_swap32 |
| #define ld_swap32(s, d) (d = *(s)) |
| #define st_swap32(s, d) (*(d) = s) |
| #undef ld_swap64 |
| #undef st_swap64 |
| #define ld_swap64(s, d) (d = *(s)) |
| #define st_swap64(s, d) (*(d) = s) |
| #endif /* MACHINE_IS_LITTLE_ENDIAN */ |
| |
| #endif /* _CRYPTO_EDONR_BYTEORDER_H */ |