X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=compiler.h;h=6f02ba402391032f8885ea0a121cc1bacf7c3a58;hb=d3d9dd63f231ecdbeeade3f73fe4e3bf307061e1;hp=b7c78f11d59016eb973994a928890027d53db719;hpb=78af5b91002a94c63e33d1c6ccb6017b9362cb09;p=bertos.git diff --git a/compiler.h b/compiler.h index b7c78f11..6f02ba40 100755 --- a/compiler.h +++ b/compiler.h @@ -1,9 +1,9 @@ /*! * \file * * * \brief Additional support macros for compiler independance @@ -14,56 +14,17 @@ /*#* *#* $Log$ - *#* Revision 1.23 2004/09/20 03:30:27 bernie - *#* Remove vsprintf_P() proto, no longer needed with avr-libc 1.0.4. + *#* Revision 1.43 2005/03/01 23:15:12 bernie + *#* Remove compatibility hack. *#* - *#* Revision 1.22 2004/09/14 21:03:04 bernie - *#* PURE_FUNC, CONST_FUNC, MUST_CHECK: New function attributes; LIKELY()/UNLIKELY(): Fix for non-integral expressions. + *#* Revision 1.42 2005/02/16 20:28:46 bernie + *#* Move PGM macros to mware/pgm.h *#* - *#* Revision 1.21 2004/09/06 21:38:31 bernie - *#* Misc documentation and style fixes. + *#* Revision 1.41 2005/01/22 04:19:22 bernie + *#* MTIME_INFINITE: New constant. *#* - *#* Revision 1.20 2004/08/29 21:57:58 bernie - *#* Move back STATIC_ASSERT() to compiler.h as it's needed in cpu.h; - *#* iptr_t, const_iptr_t: Replace IPTR macro with a real typedef. - *#* - *#* Revision 1.19 2004/08/25 14:12:08 rasky - *#* Aggiornato il comment block dei log RCS - *#* - *#* Revision 1.18 2004/08/24 16:32:37 bernie - *#* Document custom types. - *#* - *#* 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 1.16 2004/08/14 19:37:57 rasky - *#* Merge da SC: macros.h, pool.h, BIT_CHANGE, nome dei processi, etc. - *#* - *#* 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 1.40 2005/01/20 18:46:04 aleph + *#* Add progmem datatypes; PSTR() definition. *#*/ #ifndef DEVLIB_COMPILER_H #define DEVLIB_COMPILER_H @@ -78,6 +39,11 @@ #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 @@ -103,7 +69,8 @@ #define REGISTER shortad #define INLINE /* unsupported */ - /* Imported from . Unfortunately, we can't just include + /* + * Imported from . 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 @@ -121,9 +88,9 @@ */ struct _JMP_BUF { - void * sp; /* Stack pointer */ - void * return_addr; /* Return address */ - int lr[6]; /* 6 local registers */ + void *sp; /* Stack pointer */ + void *return_addr; /* Return address */ + int lr[6]; /* 6 local registers */ }; typedef struct _JMP_BUF jmp_buf[1]; @@ -139,15 +106,14 @@ #elif defined(_MSC_VER) /* Win32 emulation support */ #include - #include /* for time_t */ /* FIXME: I can't remember why exactly this was needed (NdBernie) */ #define float double - /* Fake bool support */ + /* MSVC doesn't provide . */ #ifndef __cplusplus - #define true 1 - #define false 0 + #define true (1==1) + #define false (1!=1) typedef int bool; #endif /* !__cplusplus */ @@ -157,46 +123,60 @@ #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(type,arg) __attribute__((__unused__)) type arg + #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 - #if CPU_X86 - - /* Hack to avoid conflicts with system type */ - #define sigset_t system_sigset_t + #if CPU_AVR #include - #include #include - #undef system_sigset_t - - #elif CPU_AVR - + #else + /* Include some standard C89/C99 stuff */ #include + #include #include + #endif - /* 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 - #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__) && CPU_DSP56K + /* Compiler features */ + #define COMPILER_VARIADIC_MACROS 1 + #define COMPILER_TYPEOF 1 + #define COMPILER_STATEMENT_EXPRESSIONS 1 + + #define typeof __typeof__ + #include #include #include @@ -210,6 +190,32 @@ #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 macros with variable arguments. + */ +#ifndef COMPILER_TYPEOF +#define COMPILER_TYPEOF 0 +#endif + +/*! + * \def COMPILER_STATEMENT_EXPRESSIONS + * Support for macros with variable arguments. + */ +#ifndef COMPILER_STATEMENT_EXPRESSIONS +#define COMPILER_STATEMENT_EXPRESSIONS 0 +#endif + /* A few defaults for missing compiler features. */ #ifndef INLINE #define INLINE static inline @@ -223,8 +229,15 @@ #ifndef DEPRECATED #define DEPRECATED /* nothing */ #endif -#ifndef UNUSED -#define UNUSED(type,arg) type arg +#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 */ @@ -244,6 +257,12 @@ #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 @@ -251,21 +270,6 @@ #define MUST_CHECK /* nothing */ #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 (void *)0 @@ -287,28 +291,6 @@ #endif -/* - * Standard type definitions. - * These should be in , but many compilers lack them. - */ -#if !(defined(size_t) || defined(_SIZE_T_DEFINED)) - 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 */ - -/*! Bulk storage large enough for both pointers or integers */ -typedef void * iptr_t; -typedef const void * const_iptr_t; -#define IPTR iptr_t /* OBSOLETE */ - -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__)) /*! * \name ISO C99 fixed-size types @@ -331,6 +313,69 @@ typedef unsigned char page_t; /*!< Type for banked memory pages */ #include #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 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 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) + #define SIZEOF_UTIME_T (32 / CPU_BITS_PER_CHAR) + #define MTIME_INFINITE 0x7FFFFFFFL +#endif + +/*! Bulk storage large enough for both pointers or integers. */ +typedef void * iptr_t; +typedef const void * const_iptr_t; + +typedef unsigned char sig_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 or , but many compilers + * and C libraries lack them. + * + * We check for some common definitions to avoid redefinitions: + * + * glibc, avr-libc: _SIZE_T_DEFINED + * Darwin libc: _BSD_SIZE_T_DEFINED_ + * + * \{ + */ +#if !(defined(size_t) || defined(_SIZE_T_DEFINED) || defined(_BSD_SIZE_T_DEFINED_)) + #if CPU_REG_BITS > 32 + /* 64bit. */ + typedef unsigned long size_t; + typedef long ssize_t; + #else + /* 32bit or 16bit. */ + typedef unsigned int size_t; + typedef int ssize_t; + #endif +#endif + +#if !(defined(_TIME_T_DEFINED) || defined(__time_t_defined) || defined(_EMUL)) + /*! For backwards compatibility. Use mtime_t in new code. */ + #define time_t mtime_t + #define SIZEOF_TIME_T SIZEOF_MTIME_T +#else + /* Just a guess, but quite safe. */ + #define SIZEOF_TIME_T SIZEOF_LONG +#endif /* _TIME_T_DEFINED || __time_t_defined */ +/*\}*/ + + /*! * \name Types for hardware registers. * @@ -371,6 +416,6 @@ typedef unsigned char page_t; /*!< Type for banked memory pages */ /*! Issue a compilation error if the \a condition is false */ #define STATIC_ASSERT(condition) \ - extern char PP_CAT(CT_ASSERT___, __LINE__)[(condition) ? 1 : -1] + UNUSED_VAR(extern char,PP_CAT(CT_ASSERT___, __LINE__)[(condition) ? 1 : -1]) #endif /* DEVLIB_COMPILER_H */