gint/include/defs/attributes.h

42 lines
1.5 KiB
C

//---
// gint:defs:attributes - Macros for compiler-specific attributes
//---
#ifndef GINT_DEFS_ATTRIBUTES
#define GINT_DEFS_ATTRIBUTES
/* Generic attribute element */
#define ATTR(...) __attribute__((__VA_ARGS__))
/* Objects from specific sections */
#define SECTION(x) __attribute__((section(x)))
/* Objects from the .gint.data and .gint.bss sections */
#define GDATA __attribute__((section(".gint.data")))
#define GBSS __attribute__((section(".gint.bss")))
/* Additional sections that are only needed on SH3 */
#define GDATA3 __attribute__((section(".gint.data.sh3")))
#define GBSS3 __attribute__((section(".gint.bss.sh3")))
/* Initialization functions */
#define PRETEXT __attribute__((section(".pretext")))
/* Unused parameters or variables */
#define UNUSED __attribute__((unused))
/* Functions that *must* be inlined */
#define INLINE __attribute__((always_inline)) inline
/* Short static functions defined in header files */
#define HDRFUNC __attribute__((always_inline)) static inline
/* Constructors and destructors */
#define CTOR(x) __attribute__((constructor ((x) + 101))) PRETEXT
#define DTOR(x) __attribute__((destructor ((x) + 101)))
/* Aligned variables */
#define ALIGNED(x) __attribute__((aligned(x)))
/* Packed structures. I require explicit alignment because if it's unspecified,
GCC cannot optimize access size, and reads to memory-mapped I/O with invalid
access sizes silently fail - honestly you don't want this to happen */
#define PACKED(x) __attribute__((packed, aligned(x)))
#endif /* GINT_DEFS_ATTRIBUTES */