* \brief Additional support macros for compiler independance
*/
-/*
- * $Log$
- * 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 1.8 2004/07/20 23:43:39 bernie
- * Use attribute((always_inline)) to force inlining. This fixes the much
- * hated need of redundant prototypes for inline functions.
- *
- * Revision 1.7 2004/07/20 23:26:48 bernie
- * Fix two errors introduced by previous commit.
- *
- * Revision 1.6 2004/07/20 23:12:43 bernie
- * *** empty log message ***
- *
- * 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.
- *
- */
-#ifndef COMPILER_H
-#define COMPILER_H
+/*#*
+ *#* $Log$
+ *#* 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.
+ *#*/
+#ifndef DEVLIB_COMPILER_H
+#define DEVLIB_COMPILER_H
-#include "arch_config.h"
#include "cpu_detect.h"
#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
#define INTERRUPT(x) interrupt [x]
/* Misc definitions */
#ifndef NULL
-#define NULL 0
+#define NULL (void *)0
#endif
#ifndef EOF
#define EOF (-1)
#endif /* _TIME_T_DEFINED || __time_t_defined */
/*! Storage for pointers and integers */
+/* FIXME: turn this into a typedef? */
#define IPTR void *
-typedef long utime_t;
-typedef unsigned char sig_t;
-typedef unsigned char sigset_t;
-typedef unsigned char page_t;
+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__))
- /*
- * ISO C99 fixed-size types
+ /*!
+ * \name 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 unsigned char uint8_t;
typedef unsigned short int uint16_t;
typedef unsigned long int uint32_t;
-#elif defined(__AVR__)
- /* TODO: should this detect GCC+AVR combo, or just CPU_AVR? */
+ /* \} */
+#elif defined(__GNUC__) && defined(__AVR__)
/* avr-libc is weird... */
#include <inttypes.h>
#else
#endif
/*\}*/
-#endif /* COMPILER_H */
+
+/* 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 implmenents a very common idiom
+ */
+ #define countof(a) (sizeof(a) / sizeof(*(a)))
+#endif
+
+#endif /* DEVLIB_COMPILER_H */