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| author | Robert P. J. Day <rpjday@mindspring.com> | 2006-09-13 07:57:50 -0400 |
|---|---|---|
| committer | Sam Ravnborg <sam@neptun.ravnborg.org> | 2006-09-25 10:10:56 +0200 |
| commit | 1c7bafe7206d928eaccbcbd08d868733e0fb7054 (patch) | |
| tree | 1a47b8bce159ffbbef4de11276e33a8b110100eb | |
| parent | e41217129c66775d59c95978378ca42c53dd42c6 (diff) | |
| download | lwn-1c7bafe7206d928eaccbcbd08d868733e0fb7054.tar.gz lwn-1c7bafe7206d928eaccbcbd08d868733e0fb7054.zip | |
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>
| -rw-r--r-- | Documentation/sparse.txt | 8 | ||||
| -rw-r--r-- | Makefile | 12 |
2 files changed, 13 insertions, 7 deletions
diff --git a/Documentation/sparse.txt b/Documentation/sparse.txt index 5a311c38dd1a..f9c99c9a54f9 100644 --- a/Documentation/sparse.txt +++ b/Documentation/sparse.txt @@ -69,10 +69,10 @@ recompiled, or use "make C=2" to run sparse on the files whether they need to be recompiled or not. The latter is a fast way to check the whole tree if you have already built it. -The optional make variable CF can be used to pass arguments to sparse. The -build system passes -Wbitwise to sparse automatically. To perform endianness -checks, you may define __CHECK_ENDIAN__: +The optional make variable CHECKFLAGS can be used to pass arguments to sparse. +The build system passes -Wbitwise to sparse automatically. To perform +endianness checks, you may define __CHECK_ENDIAN__: - make C=2 CF="-D__CHECK_ENDIAN__" + make C=2 CHECKFLAGS="-D__CHECK_ENDIAN__" These checks are disabled by default as they generate a host of warnings. @@ -41,9 +41,15 @@ ifndef KBUILD_VERBOSE KBUILD_VERBOSE = 0 endif -# Call checker as part of compilation of C files -# Use 'make C=1' to enable checking (sparse, by default) -# Override with 'make C=1 CHECK=checker_executable CHECKFLAGS=....' +# Call a source code checker (by default, "sparse") as part of the +# C compilation. +# +# Use 'make C=1' to enable checking of only re-compiled files. +# Use 'make C=2' to enable checking of *all* source files, regardless +# of whether they are re-compiled or not. +# +# See the file "Documentation/sparse.txt" for more details, including +# where to get the "sparse" utility. ifdef C ifeq ("$(origin C)", "command line") |