X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=compiler.h;h=0518f4ca86922af92a7ac49d0afb4e110df29381;hb=20dd688cb9651494cfa2fe4e3026930c23f07dfe;hp=dd7a5b88dbf44df8ade9998dc086c1fa2516c9ff;hpb=84db03bc2d158be3787b49d191603d68d99cb70a;p=bertos.git diff --git a/compiler.h b/compiler.h index dd7a5b88..0518f4ca 100755 --- a/compiler.h +++ b/compiler.h @@ -15,38 +15,45 @@ /* * $Log$ - * Revision 1.8 2004/07/20 23:43:39 bernie - * Use attribute((always_inline)) to force inlining. This fixes the much - * hated need of redundant prototypes for inline functions. + * Revision 1.18 2004/08/24 16:32:37 bernie + * Document custom types. * - * Revision 1.7 2004/07/20 23:26:48 bernie - * Fix two errors introduced by previous commit. + * Revision 1.17 2004/08/24 13:32:14 bernie + * PP_CAT(), PP_STRINGIZE(): Move back to compiler.h to break circular dependency between cpu.h/compiler.h/macros.h; + * offsetof(), countof(): Move back to compiler.h to avoid including macros.h almost everywhere; + * Trim CVS log; + * Rename header guards; + * Don't include arch_config.h in compiler.h as it's not needed there. * - * Revision 1.6 2004/07/20 23:12:43 bernie - * *** empty log message *** + * Revision 1.16 2004/08/14 19:37:57 rasky + * Merge da SC: macros.h, pool.h, BIT_CHANGE, nome dei processi, etc. * - * Revision 1.5 2004/07/20 17:08:03 bernie - * Cleanup documentation + * Revision 1.15 2004/08/13 03:23:26 bernie + * Adjust a few MSVC tweaks from older projects. * - * Revision 1.4 2004/06/27 15:20:26 aleph - * Change UNUSED() macro to accept two arguments: type and name; - * Add macro GNUC_PREREQ to detect GCC version during build; - * Some spacing cleanups and typo fix + * Revision 1.14 2004/08/10 06:56:29 bernie + * RESTRICT: New C99-like macro; STATIC_ASSERT: Fix warning for multiple invocation in one file. * - * Revision 1.3 2004/06/06 18:00:39 bernie - * PP_CAT(): New macro. + * Revision 1.13 2004/08/02 20:20:29 aleph + * Merge from project_ks * - * Revision 1.2 2004/06/03 11:27:09 bernie - * Add dual-license information. + * Revision 1.12 2004/08/01 01:21:17 bernie + * LIKELY(), UNLIKELY(): New compiler-specific macros. * - * Revision 1.1 2004/05/23 17:48:35 bernie - * Add top-level files. + * Revision 1.11 2004/07/30 14:34:10 rasky + * Vari fix per documentazione e commenti + * Aggiunte PP_CATn e STATIC_ASSERT * + * Revision 1.10 2004/07/30 14:15:53 rasky + * Nuovo supporto unificato per detect della CPU + * + * Revision 1.9 2004/07/29 22:57:09 bernie + * vsprintf(): Remove prototype for backwards compatibility with GCC 3.4; ssize_t: Add definition for inferior compilers. */ -#ifndef COMPILER_H -#define COMPILER_H +#ifndef DEVLIB_COMPILER_H +#define DEVLIB_COMPILER_H -#include "arch_config.h" +#include "cpu_detect.h" #if defined __GNUC__ && defined __GNUC_MINOR__ @@ -56,6 +63,25 @@ #define GNUC_PREREQ(maj, min) 0 #endif +#if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) + #define COMPILER_C99 1 +#else + #define COMPILER_C99 0 +#endif + + +/*! Concatenate two different preprocessor tokens (allowing macros to expand) */ +#define PP_CAT(x,y) PP_CAT__(x,y) +#define PP_CAT__(x,y) x ## y +#define PP_CAT3(x,y,z) PP_CAT(PP_CAT(x,y),z) +#define PP_CAT4(x,y,z,w) PP_CAT(PP_CAT3(x,y,z),w) +#define PP_CAT5(x,y,z,w,j) PP_CAT(PP_CAT4(x,y,z,w),j) + +/*! String-ize a token (allowing macros to expand) */ +#define PP_STRINGIZE(x) PP_STRINGIZE__(x) +#define PP_STRINGIZE__(x) #x + + #if defined(__IAR_SYSTEMS_ICC) || defined(__IAR_SYSTEMS_ICC__) #pragma language=extended #define INTERRUPT(x) interrupt [x] @@ -99,10 +125,9 @@ #include #include /* for time_t */ - #define float double - /* Ouch, ReleaseSemaphore() conflicts with a WIN32 call ;-( */ - #define ReleaseSemaphore KReleaseSemaphore + /* FIXME: I can't remember why exactly this was needed (NdBernie) */ + #define float double /* Fake bool support */ #ifndef __cplusplus @@ -111,6 +136,10 @@ typedef int bool; #endif /* !__cplusplus */ + /* These C99 functions are oddly named in MSVCRT32.lib */ + #define snprintf _snprintf + #define vsnprintf _vsnprintf + #elif defined(__GNUC__) /* GCC attributes */ @@ -118,11 +147,14 @@ #define NORETURN __attribute__((__noreturn__)) #define UNUSED(type,arg) __attribute__((__unused__)) type arg #define INLINE static inline __attribute__((__always_inline__)) + #define LIKELY(x) __builtin_expect((x), 1) + #define UNLIKELY(x) __builtin_expect((x), 0) + #define RESTRICT __restrict__ #if GNUC_PREREQ(3,1) #define DEPRECATED __attribute__((__deprecated__)) #endif - #if defined(__i386__) + #if CPU_X86 /* hack to avoid conflicts with system type */ #define sigset_t system_sigset_t @@ -131,7 +163,7 @@ #include #undef system_sigset_t - #elif defined(__AVR__) + #elif CPU_AVR #include #include @@ -139,9 +171,6 @@ /* Missing printf-family functions in avr-libc/stdio.h */ #include #include - #if !GNUC_PREREQ(3,4) - int vsprintf(char *buf, const char *fmt, va_list ap); - #endif int vsprintf_P(char *buf, const char * PROGMEM fmt, va_list ap); /* Support for harvard architectures */ @@ -151,15 +180,18 @@ #define PGM_ATTR PROGMEM #endif - #endif /* CPU */ + #endif -#elif defined(__MWERKS__) && (defined(__m56800E__) || defined(__m56800__)) +#elif defined(__MWERKS__) && CPU_DSP56K #include #include #include #include + // CodeWarrior has size_t as built-in type, but does not define this symbol. + #define _SIZE_T_DEFINED + #else #error unknown compiler #endif @@ -187,6 +219,15 @@ #ifndef INTERRUPT #define INTERRUPT(x) ERROR_NOT_IMPLEMENTED #endif +#ifndef LIKELY +#define LIKELY(x) x +#endif +#ifndef UNLIKELY +#define UNLIKELY(x) x +#endif +#ifndef RESTRICT +#define RESTRICT +#endif /* Support for harvard architectures */ #ifndef PSTR @@ -205,7 +246,7 @@ /* Misc definitions */ #ifndef NULL -#define NULL 0 +#define NULL (void *)0 #endif #ifndef EOF #define EOF (-1) @@ -222,76 +263,33 @@ #endif -/* Quasi-ANSI macros */ -#ifndef offsetof - /*! offsetof(s,m) - Return the byte offset of the member \a m in struct \a s */ - #define offsetof(s,m) (size_t)&(((s *)0)->m) -#endif -#ifndef countof - /*! Count the number of elements in the static array \a a */ - #define countof(a) (sizeof(a) / sizeof(*(a))) -#endif - - -/* Simple macros */ -#define ABS(a) (((a) < 0) ? -(a) : (a)) -#define MIN(a,b) (((a) < (b)) ? (a) : (b)) -#define MAX(a,b) (((a) > (b)) ? (a) : (b)) - -#ifndef BV -/*! Convert a bit value to a binary flag */ -#define BV(x) (1<<(x)) -#endif - -/*! Round up \a x to an even multiple of the 2's power \a pad */ -#define ROUND2(x, pad) (((x) + ((pad) - 1)) & ~((pad) - 1)) - -/*! Calculate a compile-time log2 for a uint8_t */ -#define UINT8_LOG2(x) \ - ((x) < 2 ? 0 : \ - ((x) < 4 ? 1 : \ - ((x) < 8 ? 2 : \ - ((x) < 16 ? 3 : \ - ((x) < 32 ? 4 : \ - ((x) < 64 ? 5 : \ - ((x) < 128 ? 6 : 7))))))) - -/*! Calculate a compile-time log2 for a uint16_t */ -#define UINT16_LOG2(x) \ - ((x < 256) ? UINT8_LOG2(x) : UINT8_LOG2((x) >> 8) + 8) - -/*! Calculate a compile-time log2 for a uint32_t */ -#define UINT32_LOG2(x) \ - ((x < 65536UL) ? UINT16_LOG2(x) : UINT16_LOG2((x) >> 16) + 16) - -/*! Concatenate two different preprocessor tokens (allowing macros to expand) */ -#define PP_CAT(x,y) PP_CAT__(x,y) -#define PP_CAT__(x,y) x ## y - - /* * Standard type definitions * These should be in , but many compilers lack them. */ #if !(defined(size_t) || defined(_SIZE_T_DEFINED)) - #define size_t unsigned int + typedef unsigned int size_t; + typedef int ssize_t; #endif #if !(defined(_TIME_T_DEFINED) || defined(__time_t_defined)) typedef long time_t; #endif /* _TIME_T_DEFINED || __time_t_defined */ /*! Storage for pointers and integers */ +/* FIXME: turn this into a typedef? */ #define IPTR void * -typedef long utime_t; -typedef unsigned char sig_t; -typedef unsigned char sigset_t; -typedef unsigned char page_t; +typedef long utime_t; /*!< Type for time expressed in microseconds */ +typedef unsigned char sig_t; /*!< Type for signal bits */ +typedef unsigned char sigset_t; /*!< Type for signal masks */ +typedef unsigned char page_t; /*!< Type for banked memory pages */ #if (defined(_MSC_VER) || defined(__IAR_SYSTEMS_ICC) || defined(__IAR_SYSTEMS_ICC__)) - /* - * ISO C99 fixed-size types + /*! + * \name ISO C99 fixed-size types + * * These should be in , but many compilers lack them. + * \{ */ typedef signed char int8_t; typedef short int int16_t; @@ -299,7 +297,8 @@ typedef unsigned char page_t; typedef unsigned char uint8_t; typedef unsigned short int uint16_t; typedef unsigned long int uint32_t; -#elif defined(__AVR__) + /* \} */ +#elif defined(__GNUC__) && defined(__AVR__) /* avr-libc is weird... */ #include #else @@ -315,7 +314,7 @@ typedef unsigned char page_t; * * \{ */ -#if (defined(__m56800E__) || defined(__m56800__)) +#if CPU_DSP56K /* Registers can be accessed only through 16-bit pointers */ typedef volatile uint16_t reg16_t; #else @@ -325,4 +324,24 @@ typedef unsigned char page_t; #endif /*\}*/ -#endif /* COMPILER_H */ + +/* Quasi-ANSI macros */ +#ifndef offsetof + /*! + * Return the byte offset of the member \a m in struct \a s + * + * \note This macro should be defined in "stddef.h" and is sometimes + * compiler-specific (g++ has a builtin for it). + */ + #define offsetof(s,m) (size_t)&(((s *)0)->m) +#endif +#ifndef countof + /*! + * Count the number of elements in the static array \a a + * + * \note This macro is non-standard, but implmenents a very common idiom + */ + #define countof(a) (sizeof(a) / sizeof(*(a))) +#endif + +#endif /* DEVLIB_COMPILER_H */