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Commit 5410ecc0 authored by Mike Frysinger's avatar Mike Frysinger Committed by Sam Ravnborg
Browse files

kbuild: introduce $(kecho) convenience echo 



There is a bunch of places in the build system where we do 'echo' to show
some nice status lines.  This means we still get output when running in
silent mode.  So declare a new KECHO variable that only does 'echo' when we
are in a suitable verbose build mode.

Signed-off-by: default avatarMike Frysinger <vapier@gentoo.org>
[sam: added Documentation]
Signed-off-by: default avatarSam Ravnborg <sam@ravnborg.org>
parent d03fab43

Documentation/kbuild/makefiles.txt

+14 −0
Original line number Diff line number Diff line
@@ -383,6 +383,20 @@ more details, with real examples. 
	to prerequisites are referenced with $(src) (because they are not

	generated files).



    $(kecho)

	echoing information to user in a rule is often a good practice

	but when execution "make -s" one does not expect to see any output

	except for warnings/errors.

	To support this kbuild define $(kecho) which will echo out the

	text following $(kecho) to stdout except if "make -s" is used.



	Example:

		#arch/blackfin/boot/Makefile

		$(obj)/vmImage: $(obj)/vmlinux.gz

			$(call if_changed,uimage)

			@$(kecho) 'Kernel: $@ is ready'





--- 3.11 $(CC) support functions



	The kernel may be built with several different versions of

scripts/Kbuild.include

+7 −0
Original line number Diff line number Diff line
@@ -24,6 +24,13 @@ basetarget = $(basename $(notdir $@)) 
# Escape single quote for use in echo statements

escsq = $(subst $(squote),'\$(squote)',$1)



###

# Easy method for doing a status message

       kecho := :

 quiet_kecho := echo

silent_kecho := :

kecho := $($(quiet)kecho)



###

# filechk is used to check if the content of a generated file is updated.

# Sample usage: