X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=cfg%2Fcompiler.h;h=6485473cf2f12d086e99acca3599b83fbbfb5a0e;hb=941529ddc4cddd04f69d38c0929ec00fe93aadef;hp=af4928ee5aa664d93d1fa32f0783d4ed33b3d487;hpb=9709df52ecba21e4f5acd4b1e2e67ca70ba1af83;p=bertos.git diff --git a/cfg/compiler.h b/cfg/compiler.h old mode 100755 new mode 100644 index af4928ee..6485473c --- a/cfg/compiler.h +++ b/cfg/compiler.h @@ -1,9 +1,34 @@ -/*! +/** * \file * * * \brief Additional support macros for compiler independance @@ -12,42 +37,10 @@ * \author Bernardo Innocenti */ -/*#* - *#* $Log$ - *#* 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. - *#* - *#* 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 -#include +#include #if defined __GNUC__ && defined __GNUC_MINOR__ @@ -69,57 +62,80 @@ #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 #if defined(__IAR_SYSTEMS_ICC) || defined(__IAR_SYSTEMS_ICC__) + #pragma language=extended - #define INTERRUPT(x) interrupt [x] - #define REGISTER shortad - #define INLINE /* unsupported */ - /* - * 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 - * 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 */ - }; + #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 + #include + #include - typedef struct _JMP_BUF jmp_buf[1]; + #elif CPU_I196 - int setjmp(jmp_buf env); - void longjmp(jmp_buf env, int val); + // IAR has size_t as built-in type, but does not define this symbol. + #define _SIZE_T_DEFINED - /* Fake bool support */ - #define true (1==1) - #define false (1!=1) - typedef unsigned char bool; + #define INTERRUPT(x) interrupt [x] + #define REGISTER shortad + #define INLINE /* unsupported */ + + /* + * 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 + * 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 */ @@ -134,6 +150,14 @@ #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 */ @@ -160,13 +184,19 @@ #define DEPRECATED __attribute__((__deprecated__)) #endif - #if CPU_AVR - #include - #include - #else - /* Include some standard C89/C99 stuff */ - #include - #include + #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 + #include + #include + #if !CPU_AVR + #include /* for ssize_t */ #endif #ifndef __cplusplus @@ -191,8 +221,8 @@ #define UNUSED_ARG(type,arg) type - #include #include + #include #include // CodeWarrior has size_t as built-in type, but does not define this symbol. @@ -205,7 +235,7 @@ /* Defaults for compiler extensions. */ -/*! +/** * \def COMPILER_VARIADIC_MACROS * Support for macros with variable arguments. */ @@ -213,17 +243,17 @@ #define COMPILER_VARIADIC_MACROS (COMPILER_C99 != 0) #endif -/*! +/** * \def COMPILER_TYPEOF - * Support for macros with variable arguments. + * Support for dynamic type identification. */ #ifndef COMPILER_TYPEOF #define COMPILER_TYPEOF 0 #endif -/*! +/** * \def COMPILER_STATEMENT_EXPRESSIONS - * Support for macros with variable arguments. + * Support for statement expressions. */ #ifndef COMPILER_STATEMENT_EXPRESSIONS #define COMPILER_STATEMENT_EXPRESSIONS 0 @@ -255,9 +285,6 @@ #ifndef REGISTER #define REGISTER /* nothing */ #endif -#ifndef INTERRUPT -#define INTERRUPT(x) ERROR_NOT_IMPLEMENTED -#endif #ifndef LIKELY #define LIKELY(x) x #endif @@ -297,18 +324,23 @@ #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(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 , but many compilers lack them. + * These should be in , but a few compilers lack them. * \{ */ typedef signed char int8_t; @@ -326,11 +358,8 @@ typedef unsigned long long uint64_t; #endif /* \} */ -#elif defined(__GNUC__) && CPU_AVR - /* avr-libc is weird... (Fixed in avr-libc-1.2, hack to be removed soon) */ - #include #else - /* This is the correct location. */ + /* This is the standard location. */ #include #endif @@ -339,33 +368,38 @@ * 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 */ + 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 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. */ +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 or , but many compilers @@ -373,34 +407,39 @@ typedef unsigned char page_t; /*!< Type for banked memory pages. */ * * 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 CPU_REG_BITS > 32 - /* 64bit. */ +#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 - /* 32bit or 16bit. */ - typedef unsigned int size_t; + #error Unknown CPU #endif #endif -#if !(defined(ssize_t) || defined(__ssize_t_defined)) - #if CPU_REG_BITS > 32 - /* 64bit (32bit for _WIN64). */ +#if !(defined(ssize_t) || defined(_SSIZE_T) || defined(__ssize_t_defined)) + #if CPU_X86 + /* 32bit or 64bit (32bit for _WIN64). */ typedef long ssize_t; - #else - /* 32bit or 16bit. */ + #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 @@ -421,7 +460,7 @@ typedef unsigned char page_t; /*!< Type for banked memory pages. */ /* 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 @@ -430,7 +469,7 @@ typedef unsigned char page_t; /*!< Type for banked memory pages. */ #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 @@ -438,8 +477,37 @@ typedef unsigned char page_t; /*!< Type for banked memory pages. */ #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 */