51 lines
1.1 KiB
C
51 lines
1.1 KiB
C
#ifndef STDDEF_H
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#define STDDEF_H
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#include <commonlib/helpers.h>
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typedef long ptrdiff_t;
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#ifndef __SIZE_TYPE__
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#define __SIZE_TYPE__ unsigned long
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#endif
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typedef __SIZE_TYPE__ size_t;
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/* There is a GCC macro for a size_t type, but not
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* for a ssize_t type. Below construct tricks GCC
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* into making __SIZE_TYPE__ signed.
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*/
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#define unsigned signed
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typedef __SIZE_TYPE__ ssize_t;
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#undef unsigned
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typedef int wchar_t;
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typedef unsigned int wint_t;
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#define NULL ((void *)0)
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/* The devicetree data structures are only mutable in ramstage. All other
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stages have a constant devicetree. */
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#if !ENV_PAYLOAD_LOADER
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#define DEVTREE_EARLY 1
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#else
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#define DEVTREE_EARLY 0
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#endif
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#if DEVTREE_EARLY
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#define DEVTREE_CONST const
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#else
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#define DEVTREE_CONST
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#endif
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#if ENV_STAGE_HAS_DATA_SECTION
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#define MAYBE_STATIC_NONZERO static
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#else
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#define MAYBE_STATIC_NONZERO
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#endif
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/* Provide a pointer to address 0 that thwarts any "accessing this is
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* undefined behaviour and do whatever" trickery in compilers.
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* Use when you _really_ need to read32(zeroptr) (ie. read address 0).
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*/
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extern char zeroptr[];
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#endif /* STDDEF_H */
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