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| author | Mike Frysinger <vapier@gentoo.org> | 2008-11-06 03:31:34 -0500 |
|---|---|---|
| committer | Sam Ravnborg <sam@ravnborg.org> | 2008-12-03 21:32:00 +0100 |
| commit | 5410ecc0def8955ab99810c5626cc7e156991896 (patch) | |
| tree | 53e12491b3a590101eddde098407f3ae3e759a5d /Documentation/kbuild/makefiles.txt | |
| parent | d03fab43c5ba4f5fa46db73c937e9b993a531d27 (diff) | |
| download | lwn-5410ecc0def8955ab99810c5626cc7e156991896.tar.gz lwn-5410ecc0def8955ab99810c5626cc7e156991896.zip | |
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>
Diffstat (limited to 'Documentation/kbuild/makefiles.txt')
| -rw-r--r-- | Documentation/kbuild/makefiles.txt | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt index 7a7753321a26..51104f9194a5 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 |