31 lines
1.4 KiB
C
31 lines
1.4 KiB
C
#ifndef __CTR_H
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#define __CTR_H
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// Definitions for creating compile time requests. The DECL_CTR macro
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// produces requests (text strings) that are placed in a special
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// section of the intermediate object files. The requests are then
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// extracted during the build and passed to scripts/buildcommand.py.
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// The scripts/buildcommand.py code then generates
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// out/compile_time_request.c from these requests.
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#include "compiler.h" // __section
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// Declare a compile time request
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#define DECL_CTR(REQUEST) \
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static char __PASTE(_DECLS_, __LINE__)[] __attribute__((used)) \
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__section(".compile_time_request") = (REQUEST)
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#define CTR_INT(V, S) ((((uint32_t)(V) >> S) & 0x3f) + 48)
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// Declare a compile time request with an integer expression
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#define DECL_CTR_INT(REQUEST, VALUE) \
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static struct { char _r[sizeof(REQUEST)]; char _v[8]; } \
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__PASTE(_DECLI_, __LINE__) __attribute__((used)) \
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__section(".compile_time_request") = { \
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REQUEST " ", { \
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(VALUE) < 0 ? '-' : '+', \
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CTR_INT((VALUE),0), CTR_INT((VALUE),6), \
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CTR_INT((VALUE),12), CTR_INT((VALUE),18), \
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CTR_INT((VALUE),24), CTR_INT((VALUE),30), 0 } }
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#endif // ctr.h
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