tomcrypt_cfg.h

Go to the documentation of this file.

/* This is the build config file.
 *
 * With this you can setup what to inlcude/exclude automatically during any build. Just comment
 * out the line that #define's the word for the thing you want to remove. phew!
 */

#ifndef TOMCRYPT_CFG_H
#define TOMCRYPT_CFG_H

#if defined(_WIN32) || defined(_MSC_VER)
#define LTC_CALL __cdecl
#else
#ifndef LTC_CALL
 #define LTC_CALL
#endif
#endif

#ifndef LTC_EXPORT
#define LTC_EXPORT
#endif

/* certain platforms use macros for these, making the prototypes broken */
#ifndef LTC_NO_PROTOTYPES

/* you can change how memory allocation works ... */
LTC_EXPORT void * LTC_CALL XMALLOC(size_t n);
LTC_EXPORT void * LTC_CALL XREALLOC(void *p, size_t n);
LTC_EXPORT void * LTC_CALL XCALLOC(size_t n, size_t s);
LTC_EXPORT void LTC_CALL XFREE(void *p);

LTC_EXPORT void LTC_CALL XQSORT(void *base, size_t nmemb, size_t size, int(*compar)(const void *, const void *));


/* change the clock function too */
LTC_EXPORT clock_t LTC_CALL XCLOCK(void);

/* various other functions */
LTC_EXPORT void * LTC_CALL XMEMCPY(void *dest, const void *src, size_t n);
LTC_EXPORT int LTC_CALL XMEMCMP(const void *s1, const void *s2, size_t n);
LTC_EXPORT void * LTC_CALL XMEMSET(void *s, int c, size_t n);

LTC_EXPORT int LTC_CALL XSTRCMP(const char *s1, const char *s2);

#endif

/* type of argument checking, 0=default, 1=fatal and 2=error+continue, 3=nothing */
#ifndef ARGTYPE
 #define ARGTYPE 0
#endif

/* Controls endianess and size of registers. Leave uncommented to get platform neutral [slower] code 
 * 
 * Note: in order to use the optimized macros your platform must support unaligned 32 and 64 bit read/writes.
 * The x86 platforms allow this but some others [ARM for instance] do not. On those platforms you **MUST**
 * use the portable [slower] macros.
 */

/* detect x86-32 machines somewhat */
#if !defined(__STRICT_ANSI__) && (defined(INTEL_CC) || (defined(_MSC_VER) && defined(WIN32)) || (defined(__GNUC__) && (defined(__DJGPP__) || defined(__CYGWIN__) || defined(__MINGW32__) || defined(__i386__))))
 #define ENDIAN_LITTLE
 #define ENDIAN_32BITWORD
 #define LTC_FAST
 #define LTC_FAST_TYPE unsigned long
#endif

/* detects MIPS R5900 processors (PS2) */
#if (defined(__R5900) || defined(R5900) || defined(__R5900__)) && (defined(_mips) || defined(__mips__) || defined(mips))
 #define ENDIAN_LITTLE
 #define ENDIAN_64BITWORD
#endif

/* detect amd64 */
#if !defined(__STRICT_ANSI__) && defined(__x86_64__)
 #define ENDIAN_LITTLE
 #define ENDIAN_64BITWORD
 #define LTC_FAST
 #define LTC_FAST_TYPE unsigned long
#endif

/* detect PPC32 */
#if !defined(__STRICT_ANSI__) && defined(LTC_PPC32)
 #define ENDIAN_BIG
 #define ENDIAN_32BITWORD
 #define LTC_FAST
 #define LTC_FAST_TYPE unsigned long
#endif 

/* detect sparc and sparc64 */
#if defined(__sparc__)
 #define ENDIAN_BIG
 #if defined(__arch64__)
 #define ENDIAN_64BITWORD
 #else
 #define ENDIAN_32BITWORD
 #endif
#endif


#ifdef LTC_NO_FAST
 #ifdef LTC_FAST
 #undef LTC_FAST
 #endif
#endif

/* No asm is a quick way to disable anything "not portable" */
#ifdef LTC_NO_ASM
 #undef ENDIAN_LITTLE
 #undef ENDIAN_BIG
 #undef ENDIAN_32BITWORD
 #undef ENDIAN_64BITWORD
 #undef LTC_FAST
 #undef LTC_FAST_TYPE
 #define LTC_NO_ROLC
 #define LTC_NO_BSWAP
#endif

/* #define ENDIAN_LITTLE */
/* #define ENDIAN_BIG */

/* #define ENDIAN_32BITWORD */
/* #define ENDIAN_64BITWORD */

#if (defined(ENDIAN_BIG) || defined(ENDIAN_LITTLE)) && !(defined(ENDIAN_32BITWORD) || defined(ENDIAN_64BITWORD))
 #error You must specify a word size as well as endianess in tomcrypt_cfg.h
#endif

#if !(defined(ENDIAN_BIG) || defined(ENDIAN_LITTLE))
 #define ENDIAN_NEUTRAL
#endif

#endif


/* $Source: /cvs/libtom/libtomcrypt/src/headers/tomcrypt_cfg.h,v $ */
/* $Revision: 1.19 $ */
/* $Date: 2006/12/04 02:19:48 $ */