/*!
* \file
* <!--
- * Copyright 2003,2004 Develer S.r.l. (http://www.develer.com/)
- * Copyright 2001,2002,2003 Bernardo Innocenti <bernie@codewiz.org>
- * All Rights Reserved.
+ * Copyright 2003, 2004 Develer S.r.l. (http://www.develer.com/)
+ * Copyright 2001, 2002, 2003 Bernardo Innocenti <bernie@codewiz.org>
+ * This file is part of DevLib - See devlib/README for information.
* -->
*
* \version $Id$
/*
* $Log$
+ * Revision 1.15 2004/08/13 03:23:26 bernie
+ * Adjust a few MSVC tweaks from older projects.
+ *
+ * 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 1.13 2004/08/02 20:20:29 aleph
+ * Merge from project_ks
+ *
+ * Revision 1.12 2004/08/01 01:21:17 bernie
+ * LIKELY(), UNLIKELY(): New compiler-specific macros.
+ *
+ * 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.
+ *
+ * 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 1.7 2004/07/20 23:26:48 bernie
+ * Fix two errors introduced by previous commit.
+ *
+ * Revision 1.6 2004/07/20 23:12:43 bernie
+ * *** empty log message ***
+ *
+ * Revision 1.5 2004/07/20 17:08:03 bernie
+ * Cleanup documentation
+ *
+ * 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 1.3 2004/06/06 18:00:39 bernie
+ * PP_CAT(): New macro.
+ *
+ * Revision 1.2 2004/06/03 11:27:09 bernie
+ * Add dual-license information.
+ *
* Revision 1.1 2004/05/23 17:48:35 bernie
* Add top-level files.
*
#define COMPILER_H
#include "arch_config.h"
+#include "cpu_detect.h"
+
+
+#if defined __GNUC__ && defined __GNUC_MINOR__
+ #define GNUC_PREREQ(maj, min) \
+ ((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
+#else
+ #define GNUC_PREREQ(maj, min) 0
+#endif
#if defined(__IAR_SYSTEMS_ICC) || defined(__IAR_SYSTEMS_ICC__)
#pragma language=extended
- #define INTERRUPT(x) interrupt [x]
- #define REGISTER shortad
- #define ATOMIC monitor
-
- /* GCC attributes */
- #define FORMAT(type,fmt,first) /* nothing */
- #define NORETURN /* nothing */
- #define UNUSED(arg) arg
+ #define INTERRUPT(x) interrupt [x]
+ #define REGISTER shortad
+ #define INLINE /* unsupported */
/* Imported from <longjmp.h>. Unfortunately, we can't just include
* this header because it typedefs jmp_buf to be an array of chars.
int setjmp(jmp_buf env);
void longjmp(jmp_buf env, int val);
- #ifndef __cplusplus
- #define true 1
- #define false 0
- typedef unsigned char bool;
- #endif /* !__cplusplus */
+ /* Fake bool support */
+ #define true (1==1)
+ #define false (1!=1)
+ typedef unsigned char bool;
#elif defined(_MSC_VER) /* Win32 emulation support */
#include <setjmp.h>
#include <time.h> /* for time_t */
- #define float double
-
- #define REGISTER /* nothing */
- #define INTERRUPT(x) /* nothing */
-
- /* GCC attributes */
- #define FORMAT(type,fmt,first) /* nothing */
- #define NORETURN /* nothing */
- #define UNUSED(arg) arg
- #define INLINE static inline
-
- #ifdef __cplusplus
- extern "C" {
- #endif
- void SchedulerIdle(void);
- #ifdef __cplusplus
- }
- #endif
- /* 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
#define true 1
#define false 0
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 */
#define FORMAT(type,fmt,first) __attribute__((__format__(type, fmt, first)))
#define NORETURN __attribute__((__noreturn__))
- #define UNUSED(arg) __attribute__((__unused__)) arg
- //FIXME #define INLINE static inline
- #define INLINE extern inline
+ #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
#include <stdbool.h>
#undef system_sigset_t
- #define REGISTER /* nothing */
- #define INTERRUPT(x) /* nothing */
-
- #ifdef __cplusplus
- extern "C" {
- #endif
- void SchedulerIdle(void);
- #ifdef __cplusplus
- }
- #endif
-
- #elif defined(__AVR__)
+ #elif CPU_AVR
#include <stddef.h>
#include <stdbool.h>
- #define FLASH __attribute__((progmem))
- #define REGISTER /* nothing */
/* Missing printf-family functions in avr-libc/stdio.h */
#include <stdarg.h>
#include <avr/pgmspace.h>
- int vsprintf(char *buf, const char *fmt, va_list ap);
int vsprintf_P(char *buf, const char * PROGMEM fmt, va_list ap);
- /* Support for hardvard architectures */
+ /* Support for harvard architectures */
#ifdef _PROGMEM
#define PGM_READ_CHAR(s) pgm_read_byte(s)
#define PGM_FUNC(x) x ## _P
- #define PGM_ATTR PROGMEM
- #else
- #define PGM_READ_CHAR(s) (*(s))
- #define PGM_FUNC(x) x
- #define PGM_ATTR /*nop*/
+ #define PGM_ATTR PROGMEM
#endif
- #endif /* CPU */
+ #endif
-#elif defined(__MWERKS__) && (defined(__m56800E__) || defined(__m56800__))
+#elif defined(__MWERKS__) && CPU_DSP56K
#include <stdint.h>
#include <stddef.h>
#include <stdbool.h>
#include <setjmp.h>
- #define FLASH /* nothing */
- #define REGISTER /* nothing */
- #define INTERRUPT(x) ERROR_NOT_IMPLEMENTED
- #define SCHEDULER_IDLE /* nothing */
-
- #define INLINE static inline
-
- /* GCC attributes */
- #define FORMAT(type,fmt,first) /* nothing */
- #define NORETURN /* nothing */
- #define UNUSED(arg) arg
-
- /* Support for hardvard architectures */
- #define PGM_READ_CHAR(s) (*(s))
- #define PGM_FUNC /* nothing */
- #define PGM_ATTR /* nothing */
- #define PSTR /* nothing */
+ // CodeWarrior has size_t as built-in type, but does not define this symbol.
+ #define _SIZE_T_DEFINED
#else
#error unknown compiler
#endif
+
+/* A few defaults for missing compiler features. */
+#ifndef INLINE
+#define INLINE static inline
+#endif
+#ifndef NORETURN
+#define NORETURN /* nothing */
+#endif
+#ifndef FORMAT
+#define FORMAT(type,fmt,first) /* nothing */
+#endif
+#ifndef DEPRECATED
+#define DEPRECATED /* nothing */
+#endif
+#ifndef UNUSED
+#define UNUSED(type,arg) type arg
+#endif
+#ifndef REGISTER
+#define REGISTER /* nothing */
+#endif
+#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
+#define PSTR /* nothing */
+#endif
+#ifndef PGM_READ_CHAR
+#define PGM_READ_CHAR(s) (*(s))
+#endif
+#ifndef PGM_FUNC
+#define PGM_FUNC(x) x
+#endif
+#ifndef PGM_ATTR
+#define PGM_ATTR /* nothing */
+#endif
+
+
/* Misc definitions */
#ifndef NULL
-#define NULL 0
+#define NULL 0
#endif
#ifndef EOF
-#define EOF (-1)
+#define EOF (-1)
#endif
-/* Quasi-ANSI macros
- *
- * offsetof(s,m) - Give the byte offset of the member <m> in struct <s>
- * countof(a) - Count the number of elements in the static array <a>
- */
-#ifndef offsetof
-#define offsetof(s,m) (size_t)&(((s *)0)->m)
+/* Support for hybrid C/C++ applications. */
+#ifdef __cplusplus
+ #define EXTERN_C_BEGIN extern "C" {
+ #define EXTERN_C_END }
+#else
+ #define EXTERN_C_BEGIN /* nothing */
+ #define EXTERN_C_END /* nothing */
#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
-#define countof(a) (sizeof(a) / sizeof(*(a)))
+ /*! 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))
+#if GNUC_PREREQ(2,0)
+ #define ABS(n) ({ \
+ __typeof__(n) _n = (n); \
+ (_n < 0) ? -_n : _n; \
+ })
+ #define MIN(a,b) ({ \
+ __typeof__(a) _a = (a); \
+ __typeof__(b) _b = (b); \
+ (void)(&_a == &_b); /* ensure same type */ \
+ (_a < _b) ? _a : _b; \
+ })
+ #define MAX(a,b) ({ \
+ __typeof__(a) _a = (a); \
+ __typeof__(b) _b = (b); \
+ (void)(&_a == &_b); /* ensure same type */ \
+ (_a > _b) ? _a : _b; \
+ })
+#else /* !GNUC */
+ /* Buggy macros for inferior compilers */
+ #define ABS(a) (((a) < 0) ? -(a) : (a))
+ #define MIN(a,b) (((a) < (b)) ? (a) : (b))
+ #define MAX(a,b) (((a) > (b)) ? (a) : (b))
+#endif /* !GNUC */
-/*! Convert a bit value to a binary flag */
#ifndef BV
+/*! Convert a bit value to a binary flag */
#define BV(x) (1<<(x))
#endif
#define UINT32_LOG2(x) \
((x < 65536UL) ? UINT16_LOG2(x) : UINT16_LOG2((x) >> 16) + 16)
-/* Type definitions - should go in <sys/types.h> */
+/*! 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
+
+/*! Issue a compilation error if the \a condition is false */
+#define STATIC_ASSERT(condition) \
+ extern char PP_CAT(CT_ASSERT___, __LINE__)[(condition) ? 1 : -1]
+
+/*
+ * Standard type definitions
+ * These should be in <sys/types.h>, 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;
typedef unsigned char sigset_t;
typedef unsigned char page_t;
-/* ISO C99 fixed-size types */
#if (defined(_MSC_VER) || defined(__IAR_SYSTEMS_ICC) || defined(__IAR_SYSTEMS_ICC__))
+ /*
+ * ISO C99 fixed-size types
+ * These should be in <stdint.h>, but many compilers lack them.
+ */
typedef signed char int8_t;
typedef short int int16_t;
typedef long int int32_t;
typedef unsigned short int uint16_t;
typedef unsigned long int uint32_t;
#elif defined(__AVR__)
-# include <inttypes.h>
+ /* TODO: should this detect GCC+AVR combo, or just CPU_AVR? */
+ /* avr-libc is weird... */
+ #include <inttypes.h>
#else
-# include <stdint.h>
+ /* This is the correct location. */
+ #include <stdint.h>
#endif
-#if (defined(__m56800E__) || defined(__m56800__))
+/*!
+ * \name Types for hardware registers.
+ *
+ * Only use these types for registers whose contents can
+ * be changed asynchronously by external hardware.
+ *
+ * \{
+ */
+#if CPU_DSP56K
/* Registers can be accessed only through 16-bit pointers */
typedef volatile uint16_t reg16_t;
#else
typedef volatile uint16_t reg16_t;
typedef volatile uint32_t reg32_t;
#endif
+/*\}*/
#endif /* COMPILER_H */
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