4e26fba680
When building sandbox with ccache, one would hit warnings such as:
warning: 'struct mmsghdr' declared inside parameter list
on random files; a way to reproduce this issue is to build a simple
file doing just:
#include <sys/socket.h>
int main(void) {
return 0;
}
gcc -Wall -P -c -o foo foo.c
But actually the -P flag is only useful when generating non-C files,
such as linker scripts in the case of barebox. Removing the -P flag
from all the gcc invocations, except when generating .lds files makes
the warning go away. It turns out that this is what
linux/scripts/Makefile.build also does nowadays.
Signed-off-by: Loïc Minier <loic.minier@linaro.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
53 lines
1,013 B
Makefile
53 lines
1,013 B
Makefile
CPPFLAGS += -D__X86__ -fno-strict-aliasing
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board-y := x86_generic
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machine-y := i386
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TEXT_BASE = $(CONFIG_TEXT_BASE)
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CPPFLAGS += -march=i386 -m32 -DTEXT_BASE=$(TEXT_BASE)
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LDFLAGS += -m elf_i386
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ifndef CONFIG_MODULES
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# Add cleanup flags
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CPPFLAGS += -fdata-sections -ffunction-sections
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LDFLAGS_uboot += -static --gc-sections
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endif
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all: $(KBUILD_IMAGE)
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machdirs := $(patsubst %,arch/x86/mach-%/,$(machine-y))
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ifeq ($(KBUILD_SRC),)
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CPPFLAGS += $(patsubst %,-I%include,$(machdirs))
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else
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CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(machdirs))
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endif
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ifneq ($(board-y),)
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BOARD := arch/x86/boards/$(board-y)/
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else
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BOARD :=
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endif
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ifneq ($(machine-y),)
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MACH := arch/x86/mach-$(machine-y)/
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else
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MACH :=
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endif
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common-y += $(BOARD) $(MACH)
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common-y += arch/x86/lib/
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common-y += arch/x86/boot/
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# arch/x86/cpu/
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lds-$(CONFIG_GENERIC_LINKER_SCRIPT) := arch/x86/lib/barebox.lds
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lds-$(CONFIG_BOARD_LINKER_SCRIPT) := $(BOARD)/barebox.lds
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CLEAN_FILES += arch/x86/lib/barebox.lds barebox.map barebox.S
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