-/*!
+/**
* \file
* <!--
* Copyright 2003, 2004, 2005 Develer S.r.l. (http://www.develer.com/)
/*#*
*#* $Log$
+ *#* Revision 1.24 2007/01/09 08:58:14 bernie
+ *#* Avoid dependency on cfg/compiler.h
+ *#*
+ *#* Revision 1.23 2006/09/13 18:28:38 bernie
+ *#* Reformat.
+ *#*
+ *#* Revision 1.22 2006/07/19 12:56:25 bernie
+ *#* Convert to new Doxygen style.
+ *#*
+ *#* Revision 1.21 2006/07/19 12:53:43 bernie
+ *#* Prune log.
+ *#*
+ *#* Revision 1.20 2006/06/10 05:36:15 bernie
+ *#* Convert to new Doxygen comments.
+ *#*
+ *#* Revision 1.19 2006/04/11 00:07:33 bernie
+ *#* Implemenent MF_SAVESEL flag.
+ *#*
+ *#* Revision 1.18 2006/03/22 13:34:34 bernie
+ *#* MSVC support.
+ *#*
+ *#* Revision 1.17 2006/03/22 09:48:35 bernie
+ *#* Formatting.
+ *#*
+ *#* Revision 1.16 2006/03/20 17:48:09 bernie
+ *#* Fix for avr-libc; INTERRUPT(): Remove macro.
+ *#*
+ *#* Revision 1.15 2006/03/13 02:06:25 bernie
+ *#* containerof(): New macro.
+ *#*
+ *#* Revision 1.14 2006/02/23 08:36:33 bernie
+ *#* Emulate __func__ on MSVC.
+ *#*
+ *#* Revision 1.13 2006/02/23 07:37:37 bernie
+ *#* Compile fix for MSVC.
+ *#*
+ *#* Revision 1.12 2006/02/21 16:06:31 bernie
+ *#* Fix ssize_t redefinitions on glibc systems.
+ *#*
+ *#* Revision 1.11 2006/02/20 14:34:58 bernie
+ *#* Use portable type checking.
+ *#*
+ *#* Revision 1.10 2006/02/15 09:12:01 bernie
+ *#* Fixes for ARM/IAR support.
+ *#*
*#* Revision 1.9 2006/02/10 12:38:00 bernie
*#* Add support for ARM on IAR.
*#*
*#*
*#* Revision 1.1 2005/04/11 19:04:13 bernie
*#* Move top-level headers to cfg/ subdir.
- *#*
- *#* Revision 1.44 2005/03/29 06:39:59 bernie
- *#* setjmp.h, time_t: Remove ancient retrocompatibility; Remove MSVC double to float hack.
- *#*
- *#* Revision 1.43 2005/03/01 23:15:12 bernie
- *#* Remove compatibility hack.
- *#*
- *#* Revision 1.42 2005/02/16 20:28:46 bernie
- *#* Move PGM macros to mware/pgm.h
- *#*
- *#* Revision 1.41 2005/01/22 04:19:22 bernie
- *#* MTIME_INFINITE: New constant.
- *#*
- *#* Revision 1.40 2005/01/20 18:46:04 aleph
- *#* Add progmem datatypes; PSTR() definition.
*#*/
#ifndef DEVLIB_COMPILER_H
#define DEVLIB_COMPILER_H
#endif
-/*! Concatenate two different preprocessor tokens (allowing macros to expand) */
+/** 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) */
+/** String-ize a token (allowing macros to expand) */
#define PP_STRINGIZE(x) PP_STRINGIZE__(x)
#define PP_STRINGIZE__(x) #x
#pragma language=extended
- // IAR has size_t as built-in type, but does not define this symbol.
- #define _SIZE_T_DEFINED
-
- #ifdef CPU_ARM
+ #if CPU_ARM
#define COMPILER_VARIADIC_MACROS 1
#define INTERRUPT(x) __irq __arm void x (void)
- #define REGISTER register
#define INLINE static inline
/* Include some standard C89/C99 stuff */
#include <stddef.h>
+ #include <stdint.h>
#include <stdbool.h>
- #else /* CPU_I196 */
+ #elif CPU_I196
+
+ // IAR has size_t as built-in type, but does not define this symbol.
+ #define _SIZE_T_DEFINED
#define INTERRUPT(x) interrupt [x]
#define REGISTER shortad
#define false (1!=1)
typedef unsigned char bool;
- #endif /* !CPU_I196 */
+ #else
+ #error Unsupported CPU
+ #endif
#elif defined(_MSC_VER) /* Win32 emulation support */
#define snprintf _snprintf
#define vsnprintf _vsnprintf
+ /* MSVC doesn't support C99's __func__, but has a similar extension. */
+ #define __func__ __FUNCTION__
+
+ /* MSVC doesn't support C99's inline keyword */
+ #ifndef __cplusplus
+ #define INLINE __inline
+ #endif
+
#elif defined(__GNUC__)
/* Compiler features */
#define DEPRECATED __attribute__((__deprecated__))
#endif
+ #ifndef __cplusplus
+ #define ASSERT_TYPE_EQUAL(var1, var2) \
+ STATIC_ASSERT(__builtin_types_compatible_p(typeof(var1), typeof(var2)))
+ #define ASSERT_TYPE_IS(var, type) \
+ STATIC_ASSERT(__builtin_types_compatible_p(typeof(var), type))
+ #endif
+
/* Include some standard C89/C99 stuff */
#include <stddef.h>
+ #include <stdint.h>
#include <stdbool.h>
+ #if !CPU_AVR
+ #include <sys/types.h> /* for ssize_t */
+ #endif
#ifndef __cplusplus
/*
#define UNUSED_ARG(type,arg) type
- #include <stdint.h>
#include <stddef.h>
+ #include <stdint.h>
#include <stdbool.h>
// CodeWarrior has size_t as built-in type, but does not define this symbol.
/* Defaults for compiler extensions. */
-/*!
+/**
* \def COMPILER_VARIADIC_MACROS
* Support for macros with variable arguments.
*/
#define COMPILER_VARIADIC_MACROS (COMPILER_C99 != 0)
#endif
-/*!
+/**
* \def COMPILER_TYPEOF
* Support for dynamic type identification.
*/
#define COMPILER_TYPEOF 0
#endif
-/*!
+/**
* \def COMPILER_STATEMENT_EXPRESSIONS
* Support for statement expressions.
*/
#ifndef REGISTER
#define REGISTER /* nothing */
#endif
-#ifndef INTERRUPT
-#define INTERRUPT(x) ERROR_NOT_IMPLEMENTED
-#endif
#ifndef LIKELY
#define LIKELY(x) x
#endif
#define EXTERN_C extern "C"
#define EXTERN_C_BEGIN extern "C" {
#define EXTERN_C_END }
+ #define EXTERN_CONST extern const
+ #define CONST_CAST(TYPE,EXPR) (const_cast<TYPE>(EXPR))
#else
#define EXTERN_C extern
#define EXTERN_C_BEGIN /* nothing */
#define EXTERN_C_END /* nothing */
+ #define EXTERN_CONST const
+ #define CONST_CAST(TYPE,EXPR) ((TYPE)(EXPR)) /* FIXME: How can we suppress the warning in C? */
#endif
-#if (defined(_MSC_VER) || defined(__IAR_SYSTEMS_ICC) || defined(__IAR_SYSTEMS_ICC__))
- /*!
+#if defined(_MSC_VER) \
+ || ((defined(__IAR_SYSTEMS_ICC) || defined(__IAR_SYSTEMS_ICC__)) && CPU_I196)
+ /**
* \name ISO C99 fixed-size types
*
- * These should be in <stdint.h>, but many compilers lack them.
+ * These should be in <stdint.h>, but a few compilers lack them.
* \{
*/
typedef signed char int8_t;
* The ATmega8 has a very small Flash, so we can't afford
* to link in support routines for 32bit integer arithmetic.
*/
- typedef int16_t ticks_t; /*!< Type for time expressed in ticks. */
- typedef int16_t mtime_t; /*!< Type for time expressed in milliseconds. */
- typedef int16_t utime_t; /*!< Type for time expressed in microseconds. */
+ typedef int16_t ticks_t; /**< Type for time expressed in ticks. */
+ typedef int16_t mtime_t; /**< Type for time expressed in milliseconds. */
+ typedef int16_t utime_t; /**< Type for time expressed in microseconds. */
#define SIZEOF_MTIME_T (16 / CPU_BITS_PER_CHAR)
#define SIZEOF_UTIME_T (16 / CPU_BITS_PER_CHAR)
#define MTIME_INFINITE 0x7FFFL
#else
- typedef int32_t ticks_t; /*!< Type for time expressed in ticks. */
- typedef int32_t mtime_t; /*!< Type for time expressed in milliseconds. */
- typedef int32_t utime_t; /*!< Type for time expressed in microseconds. */
- #define SIZEOF_MTIME_T (32 / CPU_BITS_PER_CHAR)
+ typedef int32_t ticks_t; /**< Type for time expressed in ticks. */
+
+ typedef int32_t utime_t; /**< Type for time expressed in microseconds. */
#define SIZEOF_UTIME_T (32 / CPU_BITS_PER_CHAR)
- #define MTIME_INFINITE 0x7FFFFFFFL
+
+ #ifndef DEVLIB_MTIME_DEFINED
+ #define DEVLIB_MTIME_DEFINED 1 /* Resolve conflict with <os/hptime.h> */
+ typedef int32_t mtime_t; /**< Type for time expressed in milliseconds. */
+ #define SIZEOF_MTIME_T (32 / CPU_BITS_PER_CHAR)
+ #define MTIME_INFINITE 0x7FFFFFFFL
+ #endif
#endif
-/*! Bulk storage large enough for both pointers or integers. */
+/** Bulk storage large enough for both pointers or integers. */
typedef void * iptr_t;
-/*! Bulk storage large enough for both pointers to constants or integers. */
+/** Bulk storage large enough for both pointers to constants or integers. */
typedef const void * const_iptr_t;
-typedef unsigned char sigbit_t; /*!< Type for signal bits. */
-typedef unsigned char sigmask_t; /*!< Type for signal masks. */
-typedef unsigned char page_t; /*!< Type for banked memory pages. */
+typedef unsigned char sigbit_t; /**< Type for signal bits. */
+typedef unsigned char sigmask_t; /**< Type for signal masks. */
+typedef unsigned char page_t; /**< Type for banked memory pages. */
-/*!
+/**
* \name Standard type definitions.
*
* These should be in <sys/types.h> or <stddef.h>, but many compilers
*
* We check for some common definitions to avoid redefinitions:
*
- * glibc, avr-libc: _SIZE_T_DEFINED
- * Darwin libc: _BSD_SIZE_T_DEFINED_
+ * glibc, avr-libc: _SIZE_T_DEFINED, __ssize_t_defined
+ * Darwin libc: _BSD_SIZE_T_DEFINED_, _SIZE_T
+ * IAR ARM: _SIZE_T
*
* \{
*/
-#if !(defined(size_t) || defined(_SIZE_T_DEFINED) || defined(_BSD_SIZE_T_DEFINED_))
+#if !(defined(size_t) || defined(_SIZE_T_DEFINED) || defined(_BSD_SIZE_T_DEFINED_) \
+ || defined(_SIZE_T))
#if CPU_X86
/* 32bit or 64bit (32bit for _WIN64). */
typedef unsigned long size_t;
#endif
#endif
-#if !(defined(ssize_t) || defined(__ssize_t_defined))
+#if !(defined(ssize_t) || defined(_SSIZE_T) || defined(__ssize_t_defined))
#if CPU_X86
/* 32bit or 64bit (32bit for _WIN64). */
typedef long ssize_t;
+ #elif CPU_ARM
+ typedef int ssize_t;
#elif CPU_AVR
/* 16bit (missing in avr-libc's sys/types.h). */
typedef int ssize_t;
/*\}*/
-/*!
+/**
* \name Types for hardware registers.
*
* Only use these types for registers whose contents can
/* 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
#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 implements a very common idiom
#define countof(a) (sizeof(a) / sizeof(*(a)))
#endif
-/*! Issue a compilation error if the \a condition is false */
+/**
+ * Cast a member of a structure out to the containing structure.
+ *
+ * \param ptr the pointer to the member.
+ * \param type the type of the container struct this is embedded in.
+ * \param member the name of the member within the struct.
+ */
+#if COMPILER_TYPEOF && COMPILER_STATEMENT_EXPRESSIONS
+ #define containerof(ptr, type, member) ({ \
+ const typeof( ((type *)0)->member ) *_mptr = (ptr); /* type check */ \
+ (type *)((char *)_mptr - offsetof(type, member)); \
+ })
+#else
+ #define containerof(ptr, type, member) \
+ ( (type *)((char *)(ptr) - offsetof(type, member)) )
+#endif
+
+/** Issue a compilation error if the \a condition is false */
#define STATIC_ASSERT(condition) \
- UNUSED_VAR(extern char,PP_CAT(CT_ASSERT___, __LINE__)[(condition) ? 1 : -1])
+ UNUSED_VAR(extern char, STATIC_ASSERTION_FAILED__[(condition) ? 1 : -1])
+
+#ifndef ASSERT_TYPE_EQUAL
+ /** Ensure two variables have the same type. */
+ #define ASSERT_TYPE_EQUAL(var1, var2) \
+ do { (void)(&(var1) == &(var2)); } while(0)
+#endif
+
+#ifndef ASSERT_TYPE_IS
+ /** Ensure variable is of specified type. */
+ #define ASSERT_TYPE_IS(var, type) \
+ do { (void)(&(var) == (type *)0); } while(0)
+#endif
#endif /* DEVLIB_COMPILER_H */