| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #ifndef STDDEF_H |
| #define STDDEF_H |
| |
| #include <commonlib/helpers.h> |
| |
| typedef __PTRDIFF_TYPE__ ptrdiff_t; |
| typedef __SIZE_TYPE__ size_t; |
| #define SIZE_MAX __SIZE_MAX__ |
| /* There is a GCC macro for a size_t type, but not |
| * for a ssize_t type. Below construct tricks GCC |
| * into making __SIZE_TYPE__ signed. |
| */ |
| #define unsigned signed |
| typedef __SIZE_TYPE__ ssize_t; |
| #undef unsigned |
| |
| typedef __WCHAR_TYPE__ wchar_t; |
| typedef __WINT_TYPE__ wint_t; |
| |
| #define NULL ((void *)0) |
| |
| /* The devicetree data structures are only mutable in ramstage. All other |
| stages have a constant devicetree. */ |
| #if !ENV_PAYLOAD_LOADER |
| #define DEVTREE_EARLY 1 |
| #else |
| #define DEVTREE_EARLY 0 |
| #endif |
| |
| #if DEVTREE_EARLY |
| #define DEVTREE_CONST const |
| #else |
| #define DEVTREE_CONST |
| #endif |
| |
| /* Provide a pointer to address 0 that thwarts any "accessing this is |
| * undefined behaviour and do whatever" trickery in compilers. |
| * Use when you _really_ need to read32(zeroptr) (ie. read address 0). |
| */ |
| extern char zeroptr[]; |
| |
| #endif /* STDDEF_H */ |
