[S] Change in coreboot[master]: commonlib/bsd, libpayload: Do not include helpers.h in stddef.h

[Thomas Heijligen (Code Review)]

Attention is currently required from: Julius Werner.

Thomas Heijligen has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/70116 )

Change subject: commonlib/bsd, libpayload: Do not include helpers.h in stddef.h
......................................................................

commonlib/bsd, libpayload: Do not include helpers.h in stddef.h

`stddef.h` should only provide the definitions defined by ISO or Posix.
The included `commonlib/bsd/helpers.h` provide a lot of non standard
definitions that may interfere with definitions from the application.

Change-Id: Ia71edbc3ffe6694ff4b971decf3a41f915264bc8
Signed-off-by: Thomas Heijligen 
---
M payloads/libpayload/arch/x86/boot_media.c
M payloads/libpayload/include/stddef.h
M src/commonlib/bsd/cbfs_mcache.c
M src/commonlib/bsd/cbfs_private.c
4 files changed, 21 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/16/70116/1

diff --git a/payloads/libpayload/arch/x86/boot_media.c b/payloads/libpayload/arch/x86/boot_media.c
index 99fb4e3..76da39b 100644
--- a/payloads/libpayload/arch/x86/boot_media.c
+++ b/payloads/libpayload/arch/x86/boot_media.c
@@ -3,6 +3,7 @@
 #include <arch/virtual.h>
 #include <boot_device.h>
 #include <commonlib/bsd/cb_err.h>
+#include <commonlib/bsd/helpers.h>
 #include <stddef.h>
 #include <string.h>
 #include <sysinfo.h>
diff --git a/payloads/libpayload/include/stddef.h b/payloads/libpayload/include/stddef.h
index fb6ec9b..9003ac9 100644
--- a/payloads/libpayload/include/stddef.h
+++ b/payloads/libpayload/include/stddef.h
@@ -2,7 +2,10 @@
 #define _STDDEF_H

#include <arch/types.h>
-#include <commonlib/bsd/helpers.h>
+
+#if !defined(offsetof)
+#define offsetof(type, member) __builtin_offsetof(type, member)
+#endif

#ifndef __WCHAR_TYPE__
 #define __WCHAR_TYPE__ int
diff --git a/src/commonlib/bsd/cbfs_mcache.c b/src/commonlib/bsd/cbfs_mcache.c
index 29ba110..8714cc0 100644
--- a/src/commonlib/bsd/cbfs_mcache.c
+++ b/src/commonlib/bsd/cbfs_mcache.c
@@ -2,6 +2,7 @@

#include <assert.h>
 #include <commonlib/bsd/cbfs_private.h>
+#include <commonlib/bsd/helpers.h>

/*
  * A CBFS metadata cache is an in memory data structure storing CBFS file headers (= metadata).
diff --git a/src/commonlib/bsd/cbfs_private.c b/src/commonlib/bsd/cbfs_private.c
index b9221fc..7ad2986 100644
--- a/src/commonlib/bsd/cbfs_private.c
+++ b/src/commonlib/bsd/cbfs_private.c
@@ -1,6 +1,7 @@
 /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0-or-later */

#include <commonlib/bsd/cbfs_private.h>
+#include <commonlib/bsd/helpers.h>
 #include <assert.h>

static enum cb_err read_next_header(cbfs_dev_t dev, size_t *offset, struct cbfs_file *buffer,