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authorMike Frysinger <vapier@gentoo.org>2008-11-06 03:31:34 -0500
committerSam Ravnborg <sam@ravnborg.org>2008-12-03 21:32:00 +0100
commit5410ecc0def8955ab99810c5626cc7e156991896 (patch)
tree53e12491b3a590101eddde098407f3ae3e759a5d
parentd03fab43c5ba4f5fa46db73c937e9b993a531d27 (diff)
downloadlinux-2.6.34-ux500-5410ecc0def8955ab99810c5626cc7e156991896.tar.gz
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: Mike Frysinger <vapier@gentoo.org> [sam: added Documentation] Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
-rw-r--r--Documentation/kbuild/makefiles.txt14
-rw-r--r--scripts/Kbuild.include7
2 files changed, 21 insertions, 0 deletions
diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt
index 7a7753321a2..51104f9194a 100644
--- a/Documentation/kbuild/makefiles.txt
+++ b/Documentation/kbuild/makefiles.txt
@@ -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
diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index 936940b541f..8cf87e815e5 100644
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -25,6 +25,13 @@ basetarget = $(basename $(notdir $@))
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:
# define filechk_sample