From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dirk Behme <dirk.behme@googlemail.com>
Date: Tue, 01 Sep 2009 08:13:49 +0200
Subject: [U-Boot] ARM preprocessor error generating assembly dependencies
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Dirk Behme wrote:
> Dirk Behme wrote:
>> Wolfgang Denk wrote:
>>>> Any expert here could have look to which options are taken for ARM's 
>>>> assembly dependency generation? It seems to me that -D__ASSEMBLY__ 
>>>> is missing there?
>>>
>>> I have no clue what you are talking about...
>>
>> It seems to me that dependencies for ARM assembly files are generated 
>> with different (incomplete?) options than the compilation is done. 
>> That is, it seems to me that for ARM assembly file compilation, 
>> -D__ASSEMBLY__ is set, while for dependency generation it isn't.
>>
>> I'm asking if anybody can give me a hint where I have to look for the 
>> (compiler/assembler) options used for dependency generation (for 
>> lib_arm/*.S for lib_arm/.depend) or if any expert likes to have a look 
>> to this (most probably being faster than me then ;) ).
> 
> Example: Put
> 
> #ifndef __ASSEMBLY__
> #error "Foo"
> #endif
> 
> into a lib_arm/*.S file you like (and which is build ;)) and test what 
> happens. I would assume, if -D__ASSEMBLY__ is used everywhere correctly, 
> no error message should be given.

Sorry if I'm wrong, but looking into top level rules.mk

_depend:	$(obj).depend

$(obj).depend:	$(src)Makefile $(TOPDIR)/config.mk $(SRCS)
		@rm -f $@
		@for f in $(SRCS); do \
			g=`basename $$f | sed -e 's/\(.*\)\.\w/\1.o/'`; \
			$(CC) -M $(HOSTCFLAGS) $(CPPFLAGS) -MQ $(obj)$$g $$f >> $@ ; \
		done

this doesn't distinguish between .c and .S sources?

That is, it doesn't use AFLAGS set in config.mk to generate assembly 
dependencies? So setting  -D__ASSEMBLY__ while generating assembly 
dependencies is missing here?

Best regards

Dirk