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#ifndef __CTR_H
#define __CTR_H
// Definitions for creating compile time requests. The DECL_CTR macro
// produces requests (text strings) that are placed in a special
// section of the intermediate object files (*.o). The build extracts
// these strings and places them in out/compile_time_requests.txt.
// The scripts/buildcommand.py code then generates
// out/compile_time_request.c from these requests.
#include "compiler.h" // __section
// Declare a compile time request
#define DECL_CTR(REQUEST) \
static char __PASTE(_DECLS_, __LINE__)[] __attribute__((used)) \
__section(".compile_time_request") = (REQUEST)
// Macro to encode an integer for use with DECL_CTR_INT()
#define _CTR_HEX(H) ((H) > 9 ? (H) - 10 + 'A' : (H) + '0')
#define _CTR_SHIFT(V, S) _CTR_HEX(((uint32_t)(V) >> (S)) & 0x0f)
#define _CTR_INT(V, S) ((V) < 0 ? _CTR_SHIFT(-(V), (S)) : _CTR_SHIFT((V), (S)))
#define CTR_INT(VALUE) { \
' ', (VALUE) < 0 ? '-' : '+', '0', 'x', \
_CTR_INT((VALUE),28), _CTR_INT((VALUE),24), \
_CTR_INT((VALUE),20), _CTR_INT((VALUE),16), \
_CTR_INT((VALUE),12), _CTR_INT((VALUE),8), \
_CTR_INT((VALUE),4), _CTR_INT((VALUE),0) }
// Declare a compile time request with an integer expression
#define DECL_CTR_INT(REQUEST, PARAM_COUNT, args...) \
static struct { \
char _request[sizeof(REQUEST)-1]; \
char _values[(PARAM_COUNT)][12]; \
char _end_of_line; \
} __PASTE(_DECLI_, __LINE__) __attribute__((used)) \
__section(".compile_time_request") = { \
(REQUEST), { args }, 0 }
#endif // ctr.h
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