a question about btfixupprep

2014-04-29 Thread Chan Kim 
Hi,
in arch/sparc/boot/Makefile, there is a rule below.

$(obj)/btfix.S: $(obj)/btfixupprep vmlinux FORCE
$(call if_changed,btfix)

This makes btfix.S file using btfixupprep executable.
and from the definition below,

quiet_cmd_btfix = BTFIX   $@
  cmd_btfix = $(OBJDUMP) -x vmlinux | $(obj)/btfixupprep  $@

I can see to make the btfix.S, the make runs 
objdump -x vmlinux | btfixupprep  btfix.S

What does btfixupprep do? maybe relocations? or function name substitution(for 
sub architecture)?

Regards,
Chan
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Re: a question about btfixupprep

2014-04-29 Thread Oussama Jabbari 
On Tue, Apr 29, 2014 at 9:35 AM, Chan Kim c...@etri.re.kr wrote:
 Hi,
 in arch/sparc/boot/Makefile, there is a rule below.

 $(obj)/btfix.S: $(obj)/btfixupprep vmlinux FORCE
 $(call if_changed,btfix)

 This makes btfix.S file using btfixupprep executable.
 and from the definition below,

 quiet_cmd_btfix = BTFIX   $@
   cmd_btfix = $(OBJDUMP) -x vmlinux | $(obj)/btfixupprep  $@

 I can see to make the btfix.S, the make runs
 objdump -x vmlinux | btfixupprep  btfix.S

 What does btfixupprep do? maybe relocations? or function name 
 substitution(for sub architecture)?

 Regards,
 Chan
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It would be probably good to cc linux-kbuild mailing list for this question.

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