Commit cbe5cdfc authored by Simon Glass's avatar Simon Glass

sandbox: Use system headers first for sandbox's os.c

This file must be compiled with system headers, even if U-Boot has headers
of the same name. The existing solution for this is good enough for libfdt,
but fails when we have headers like stdint.h in U-Boot.

Use -idirafter instead of -I, and remove the -nostdinc and other things
that we don't want for this file. The best way to do this is to keep a
copy of the original flags, rather than trying to filter them later.
Signed-off-by: default avatarSimon Glass <>
parent 2a54d159
......@@ -10,5 +10,7 @@
obj-y := cpu.o os.o start.o state.o
# os.c is build in the system environment, so needs standard includes
$(obj)os.o: ALL_CFLAGS := $(filter-out -nostdinc,$(ALL_CFLAGS))
$(obj).depend.os: CPPFLAGS := $(filter-out -nostdinc,$(CPPFLAGS))
$(obj)os.o: ALL_CFLAGS := $(BASE_CPPFLAGS) \
$(patsubst %, -idirafter %, $(BASE_INCLUDE_DIRS))
$(obj).depend.os: CPPFLAGS := $(BASE_CPPFLAGS) \
$(patsubst %, -idirafter %, $(BASE_INCLUDE_DIRS))
......@@ -250,11 +250,16 @@ Please undefined CONFIG_SYS_GENERIC_BOARD in your board config file)
# Sandbox needs the base flags and includes, so keep them around
ifneq ($(OBJTREE),$(SRCTREE))
CPPFLAGS += -I$(OBJTREE)/include
CPPFLAGS += -I$(TOPDIR)/include -I$(SRCTREE)/arch/$(ARCH)/include
BASE_INCLUDE_DIRS += $(TOPDIR)/include $(SRCTREE)/arch/$(ARCH)/include
CPPFLAGS += $(patsubst %, -I%, $(BASE_INCLUDE_DIRS))
CPPFLAGS += -fno-builtin -ffreestanding -nostdinc \
-isystem $(gccincdir) -pipe $(PLATFORM_CPPFLAGS)
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