kbuild: sparse needs CF not CHECKFLAGS
authorGeert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Fri, 20 Jun 2008 13:45:12 +0000 (15:45 +0200)
committerSam Ravnborg <sam@ravnborg.org>
Fri, 25 Jul 2008 20:12:39 +0000 (22:12 +0200)
commita887a07d51be6c7cd2c4c373cd17273158d6a85d
tree00320547e4d4bce3b29e4edb12559ecc12ac06a6
parent74fc5c653c5d0f9d4d70499709a68e61c4acf991
kbuild: sparse needs CF not CHECKFLAGS

Documentation/sparse.txt tells to use:

    make C=2 CHECKFLAGS="-D__CHECK_ENDIAN__"

However, this still doesn't enable endian checks. The correct syntax is:

    make C=2 CF="-D__CHECK_ENDIAN__"

This documentation bug was introduced by the following commit:

    commit 1c7bafe7206d928eaccbcbd08d868733e0fb7054
    Author: Robert P. J. Day <rpjday@mindspring.com>
    Date:   Wed Sep 13 07:57:50 2006 -0400

kbuild: clarify "make C=" build option

Clarify the use of "make C=" in the top-level Makefile, and fix a
typo in the Documentation file.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

This `typo' was not a typo, as `CF' had been introduced much earlier, by:

    commit 7b49bb9aff8b14d15da58111d8908c877c0a525e
    Author: viro@ZenIV.linux.org.uk <viro@ZenIV.linux.org.uk>
    Date:   Fri Sep 9 21:14:35 2005 +0100

[PATCH] kbuild: CF=<arguments> passes arguments to sparse

Allows to add to sparse arguments without mutilating makefiles - just
pass CF=<arguments> and they will be added to CHECKFLAGS.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Documentation/sparse.txt