+++ /dev/null
-/**
- * \file
- * <!--
- * Copyright 2003, 2004, 2005 Develer S.r.l. (http://www.develer.com/)
- * Copyright 2001, 2002, 2003 Bernardo Innocenti <bernie@codewiz.org>
- * This file is part of DevLib - See README.devlib for information.
- * -->
- *
- * \brief Additional support macros for compiler independance
- *
- * \version $Id$
- * \author Bernardo Innocenti <bernie@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 1.8 2006/01/16 03:27:49 bernie
- *#* Rename sig_t to sigbit_t to avoid clash with POSIX.
- *#*
- *#* Revision 1.7 2005/11/27 23:33:05 bernie
- *#* Drop avr-libc hack for missing stdint.h.
- *#*
- *#* Revision 1.6 2005/07/19 07:27:31 bernie
- *#* Don't use CPU_REG_BITS from cpu.h to avoid circular header dependendy.
- *#*
- *#* Revision 1.5 2005/06/27 21:24:37 bernie
- *#* ticks_t: New typedef.
- *#*
- *#* Revision 1.4 2005/06/14 06:15:10 bernie
- *#* Add X86_64 support.
- *#*
- *#* Revision 1.3 2005/04/12 01:37:01 bernie
- *#* Metrowerks touchups from HeCo.
- *#*
- *#* Revision 1.2 2005/04/11 19:10:27 bernie
- *#* Include top-level headers from cfg/ subdir.
- *#*
- *#* Revision 1.1 2005/04/11 19:04:13 bernie
- *#* Move top-level headers to cfg/ subdir.
- *#*/
-#ifndef DEVLIB_COMPILER_H
-#define DEVLIB_COMPILER_H
-
-#include <cfg/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
-
-/* Some CW versions do not allow enabling C99 from the settings panel. */
-#if defined(__MWERKS__)
- #pragma c99 on
-#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
-
- #if CPU_ARM
-
- #define COMPILER_VARIADIC_MACROS 1
-
- #define INTERRUPT(x) __irq __arm void x (void)
- #define INLINE static inline
-
- /* Include some standard C89/C99 stuff */
- #include <stddef.h>
- #include <stdint.h>
- #include <stdbool.h>
-
- #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 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.
- * This would allow the compiler to place the buffer on an odd address.
- * The CPU _should_ be able to perform word accesses to
- * unaligned data, but there are *BUGS* in the 80196KC with
- * some combinations of opcodes and addressing modes. One of
- * these, "ST SP,[?GR]+" is used in the longjmp() implementation
- * provided by the IAR compiler ANSI C library. When ?GR contains
- * an odd address, surprisingly the CPU will copy the high order
- * byte of the source operand (SP) in the low order byte of the
- * destination operand (the memory location pointed to by ?GR).
- *
- * We also need to replace the library setjmp()/longjmp() with
- * our own versions because the IAR implementation "forgets" to
- * save the contents of local registers (?LR).
- */
- struct _JMP_BUF
- {
- void *sp; /* Stack pointer */
- void *return_addr; /* Return address */
- int lr[6]; /* 6 local registers */
- };
-
- typedef struct _JMP_BUF jmp_buf[1];
-
- int setjmp(jmp_buf env);
- void longjmp(jmp_buf env, int val);
-
- /* Fake bool support */
- #define true (1==1)
- #define false (1!=1)
- typedef unsigned char bool;
-
- #else
- #error Unsupported CPU
- #endif
-
-#elif defined(_MSC_VER) /* Win32 emulation support */
-
- /* MSVC doesn't provide <stdbool.h>. */
- #ifndef __cplusplus
- #define true (1==1)
- #define false (1!=1)
- typedef int bool;
- #endif /* !__cplusplus */
-
- /* These C99 functions are oddly named in MSVCRT32.lib */
- #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 COMPILER_VARIADIC_MACROS 1 /* Even in C++ */
- #define COMPILER_TYPEOF 1
- #define COMPILER_STATEMENT_EXPRESSIONS 1
-
- /* GCC attributes */
- #define FORMAT(type,fmt,first) __attribute__((__format__(type, fmt, first)))
- #define NORETURN __attribute__((__noreturn__))
- #define UNUSED_ARG(type,arg) __attribute__((__unused__)) type arg
- #define UNUSED_VAR(type,name) __attribute__((__unused__)) type name
- #define USED_VAR(type,name) __attribute__((__used__)) type name
- #define INLINE static inline __attribute__((__always_inline__))
- #define LIKELY(x) __builtin_expect(!!(x), 1)
- #define UNLIKELY(x) __builtin_expect(!!(x), 0)
- #define PURE_FUNC __attribute__((pure))
- #define CONST_FUNC __attribute__((const))
- #define UNUSED_FUNC __attribute__((unused))
- #define USED_FUNC __attribute__((__used__))
- #define RESTRICT __restrict__
- #define MUST_CHECK __attribute__((warn_unused_result))
- #if GNUC_PREREQ(3,1)
- #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
- /*
- * Disallow some C++ keywords as identifiers in C programs,
- * for improved portability.
- */
- #pragma GCC poison new delete class template typename
- #pragma GCC poison private protected public operator
- #pragma GCC poison friend mutable using namespace
- #pragma GCC poison cin cout cerr clog
- #endif
-
-#elif defined(__MWERKS__)
-
- /* Compiler features */
- #define COMPILER_VARIADIC_MACROS 1
- #define COMPILER_TYPEOF 1
- #define COMPILER_STATEMENT_EXPRESSIONS 1
-
- #define typeof __typeof__
-
- #define UNUSED_ARG(type,arg) type
-
- #include <stddef.h>
- #include <stdint.h>
- #include <stdbool.h>
-
- // CodeWarrior has size_t as built-in type, but does not define this symbol.
- #define _SIZE_T_DEFINED
-
-#else
- #error unknown compiler
-#endif
-
-
-/* Defaults for compiler extensions. */
-
-/**
- * \def COMPILER_VARIADIC_MACROS
- * Support for macros with variable arguments.
- */
-#ifndef COMPILER_VARIADIC_MACROS
-#define COMPILER_VARIADIC_MACROS (COMPILER_C99 != 0)
-#endif
-
-/**
- * \def COMPILER_TYPEOF
- * Support for dynamic type identification.
- */
-#ifndef COMPILER_TYPEOF
-#define COMPILER_TYPEOF 0
-#endif
-
-/**
- * \def COMPILER_STATEMENT_EXPRESSIONS
- * Support for statement expressions.
- */
-#ifndef COMPILER_STATEMENT_EXPRESSIONS
-#define COMPILER_STATEMENT_EXPRESSIONS 0
-#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_ARG
-#define UNUSED_ARG(type,arg) type arg
-#endif
-#define UNUSED UNUSED_ARG /* OBSOLETE */
-#ifndef UNUSED_VAR
-#define UNUSED_VAR(type,name) type name
-#endif
-#ifndef USED_VAR
-#define USED_VAR(type,name) type name
-#endif
-#ifndef REGISTER
-#define REGISTER /* nothing */
-#endif
-#ifndef LIKELY
-#define LIKELY(x) x
-#endif
-#ifndef UNLIKELY
-#define UNLIKELY(x) x
-#endif
-#ifndef PURE_FUNC
-#define PURE_FUNC /* nothing */
-#endif
-#ifndef CONST_FUNC
-#define CONST_FUNC /* nothing */
-#endif
-#ifndef UNUSED_FUNC
-#define UNUSED_FUNC /* nothing */
-#endif
-#ifndef USED_FUNC
-#define USED_FUNC /* nothing */
-#endif
-#ifndef RESTRICT
-#define RESTRICT /* nothing */
-#endif
-#ifndef MUST_CHECK
-#define MUST_CHECK /* nothing */
-#endif
-
-/* Misc definitions */
-#ifndef NULL
-#define NULL (void *)0
-#endif
-#ifndef EOF
-#define EOF (-1)
-#endif
-
-
-/* Support for hybrid C/C++ applications. */
-#ifdef __cplusplus
- #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__)) && CPU_I196)
- /**
- * \name ISO C99 fixed-size types
- *
- * These should be in <stdint.h>, but a few compilers lack them.
- * \{
- */
- typedef signed char int8_t;
- typedef unsigned char uint8_t;
- typedef short int int16_t;
- typedef unsigned short int uint16_t;
- typedef long int int32_t; /* _WIN64 safe */
- typedef unsigned long int uint32_t; /* _WIN64 safe */
-
- #ifdef _MSC_VER
- typedef __int64 int64_t;
- typedef unsigned __int64 uint64_t;
- #else
- typedef long long int64_t;
- typedef unsigned long long uint64_t;
- #endif
- /* \} */
-#else
- /* This is the standard location. */
- #include <stdint.h>
-#endif
-
-#if CPU_AVR_ATMEGA8
- /*
- * 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. */
- #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 utime_t; /**< Type for time expressed in microseconds. */
- #define SIZEOF_UTIME_T (32 / CPU_BITS_PER_CHAR)
-
- #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. */
-typedef void * iptr_t;
-
-/** 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. */
-
-
-/**
- * \name Standard type definitions.
- *
- * These should be in <sys/types.h> or <stddef.h>, but many compilers
- * and C libraries lack them.
- *
- * We check for some common definitions to avoid redefinitions:
- *
- * 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_) \
- || defined(_SIZE_T))
- #if CPU_X86
- /* 32bit or 64bit (32bit for _WIN64). */
- typedef unsigned long size_t;
- #else
- #error Unknown CPU
- #endif
-#endif
-
-#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;
- #else
- #error Unknown CPU
- #endif
-#endif
-/*\}*/
-
-
-/**
- * \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 uint8_t reg8_t;
- typedef volatile uint16_t reg16_t;
- typedef volatile uint32_t reg32_t;
-#endif
-/*\}*/
-
-
-/* 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 implements a very common idiom
- */
- #define countof(a) (sizeof(a) / sizeof(*(a)))
-#endif
-
-/**
- * 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, 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 */
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