quiet compile kernel
dean.floyd.lkml at gmail.com
Wed Apr 27 23:13:05 EDT 2011
On Wed, Apr 27, 2011 at 10:04 AM, Prasad Joshi <prasadjoshi124 at gmail.com> wrote:
> On Wed, Apr 27, 2011 at 5:48 PM, loody <miloody at gmail.com> wrote:
>> Hi all:
>> I found the compile message of kernel is quite succinct, when we set
>> V=0, and I try to make my project output as clean as kernel did.
>> Then I traced the Makefile and it just define "quiet" and "Q" then export it.
>> Where is the exact place that quiet build begin?
>> Is that complicated to copy this quiet-build process?
> Here is a simple way to do it
> ifeq ($(strip $(V)),)
> E = @echo
> Q = @
> E = @\#
> Q =
> export E Q
> %.o: %.c
> $(E) " CC " $@
> $(Q) $(CC) -c $(CFLAGS) $< -o $@
> So when V is defined, the make command will display the detailed
> compilation message or else it will only show an echoed message. One
> can also add a check for verbose level.
You may also want to do something like the following:
echo " CC $<"
$(CC) -g -c $< -o $@
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