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| author | Jiri Olsa <jolsa@kernel.org> | 2016-11-02 14:35:47 +0100 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2016-11-14 11:37:25 -0300 |
| commit | 2ec8107d8e0d1d285b2bbf1999e7f4e46b6b535b (patch) | |
| tree | a16750cef61a1b5449b1814c95e76aab88b2aeb5 /tools/build/Documentation | |
| parent | 699c12a7cca376d16f75672f9047faa37b184eda (diff) | |
| download | linux-2ec8107d8e0d1d285b2bbf1999e7f4e46b6b535b.tar.bz2 | |
tools build: Add CFLAGS_REMOVE_* support
Adding support to remove options from final CFLAGS for both object file
and build target. It's now possible to remove CFLAGS options like:
CFLAGS_REMOVE_krava.o += -Wstrict-prototypes
Committer notes:
This comes from the kernel's kbuild infrastructure, the subset that is
supported in tools/ is being documented at tools/build/Documentation/Build.txt.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Stephane Eranian <eranian@google.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: William Cohen <wcohen@redhat.com>
Link: http://lkml.kernel.org/r/1478093749-5602-2-git-send-email-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/build/Documentation')
| -rw-r--r-- | tools/build/Documentation/Build.txt | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/tools/build/Documentation/Build.txt b/tools/build/Documentation/Build.txt index a47bffbae159..a22587475dbe 100644 --- a/tools/build/Documentation/Build.txt +++ b/tools/build/Documentation/Build.txt @@ -135,8 +135,10 @@ CFLAGS It's possible to alter the standard object C flags in the following way: - CFLAGS_perf.o += '...' - alters CFLAGS for perf.o object - CFLAGS_gtk += '...' - alters CFLAGS for gtk build object + CFLAGS_perf.o += '...' - adds CFLAGS for perf.o object + CFLAGS_gtk += '...' - adds CFLAGS for gtk build object + CFLAGS_REMOVE_perf.o += '...' - removes CFLAGS for perf.o object + CFLAGS_REMOVE_gtk += '...' - removes CFLAGS for gtk build object This C flags changes has the scope of the Build makefile they are defined in. |