coreboot/src/include/stddef.h
Jeremy Compostella f65ae7490a clean-up: Remove the no more necessary ENV_HAS_DATA_SECTION flag
With commit b7832de026 ("x86: Add .data
section support for pre-memory stages"), the `ENV_HAS_DATA_SECTION'
flag and its derivatives can now be removed from the code.

Change-Id: Ic0afac76264a9bd4a9c93ca35c90bd84e9b747a2
Signed-off-by: Jeremy Compostella <jeremy.compostella@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/77291
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Maximilian Brune <maximilian.brune@9elements.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2023-09-18 13:18:23 +00:00

43 lines
1,018 B
C

/* 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;
/* 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 */