* <!--
* Copyright 2003,2004 Develer S.r.l. (http://www.develer.com/)
* Copyright 2001,2002,2003 Bernardo Innocenti <bernie@codewiz.org>
- * All Rights Reserved.
+ * This file is part of DevLib - See devlib/README for information.
* -->
*
* \version $Id$
/*
* $Log$
+ * 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.
*
#include "arch_config.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
+
+/* A few defaults for missing compiler features. */
+#define INLINE static inline
+#define NORETURN /* nothing */
+#define FORMAT(type,fmt,first) /* nothing */
+#define DEPRECATED /* nothing */
+#define UNUSED(type,arg) type arg
+#define REGISTER /* nothing */
+#define INTERRUPT(x) ERROR_NOT_IMPLEMENTED
+
+/* Support for harvard architectures */
+#define PGM_READ_CHAR(s) (*(s))
+#define PGM_FUNC(x) x
+#define PGM_ATTR /* nothing */
+
#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
+ #undef INTERRUPT
+ #define INTERRUPT(x) interrupt [x]
+ #undef REGISTER
+ #define REGISTER shortad
+ #undef INLINE
+ #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 <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
/* Ouch, ReleaseSemaphore() conflicts with a WIN32 call ;-( */
#define ReleaseSemaphore KReleaseSemaphore
+ /* Fake bool support */
#ifndef __cplusplus
#define true 1
#define false 0
#elif defined(__GNUC__)
/* GCC attributes */
+ #undef FORMAT
#define FORMAT(type,fmt,first) __attribute__((__format__(type, fmt, first)))
+ #undef NORETURN
#define NORETURN __attribute__((__noreturn__))
- #define UNUSED(arg) __attribute__((__unused__)) arg
- //FIXME #define INLINE static inline
+ #undef UNUSED
+ #define UNUSED(type,arg) __attribute__((__unused__)) type arg
+ #undef INLINE
#define INLINE extern inline
+ #if GNUC_PREREQ(3,1)
+ #undef DEPRECATED
+ #define DEPRECATED __attribute__((__deprecated__))
+ #endif
#if defined(__i386__)
#include <stdbool.h>
#undef system_sigset_t
- #define REGISTER /* nothing */
- #define INTERRUPT(x) /* nothing */
-
#ifdef __cplusplus
extern "C" {
#endif
#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);
+ #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 hardvard architectures */
+ /* Support for harvard architectures */
#ifdef _PROGMEM
+ #undef PGM_READ_CHAR
+ #undef PGM_FUNC
+ #undef PGM_ATTR
#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 */
#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 */
#else
#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>
- */
+/* Quasi-ANSI macros */
#ifndef offsetof
-#define offsetof(s,m) (size_t)&(((s *)0)->m)
+ /*! 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))
-/*! 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
+
+
+/*
+ * 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
#endif
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>
+ /* avr-libc is weird... */
+ #include <inttypes.h>
#else
-# include <stdint.h>
+ /* This is the correct location. */
+ #include <stdint.h>
#endif
+/*!
+ * \name Types for hardware registers.
+ *
+ * Only use these types for registers whose contents can
+ * be changed asynchronously by external hardware.
+ *
+ * \{
+ */
#if (defined(__m56800E__) || defined(__m56800__))
/* Registers can be accessed only through 16-bit pointers */
typedef volatile uint16_t reg16_t;
typedef volatile uint16_t reg16_t;
typedef volatile uint32_t reg32_t;
#endif
+/*\}*/
#endif /* COMPILER_H */
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