This will provide wider coverage on include paths for our Coccinelle
rule interpretation, at a very lower cost incurred, about 1 second,
for code generation. Coccinelle makes an effort to infer types but
with a wider coverage of header files it can do a better job at that.
You want to use both --recursive-includes (which we already enable) and
--relax-include-path to get the most possible type information.
You will want at least Coccinelle 1.0.0-rc20 which had an increase
of performance of over 30% when using both --recursive-includes and
--relax-include path.
mcgrof@drvbp1 ~/backports (git::master)$ time ./gentree.py --clean
/home/mcgrof/linux-next /home/mcgrof/build/next-20140411
Copy original source files ...
Apply patches ...
Modify Kconfig tree ...
Rewrite Makefiles and Kconfig files ...
Done!
real 1m15.370s
user 10m47.232s
sys 0m36.980s
Cc: Peter Senna <peter.senna@xxxxxxxxx>
Cc: Julia Lawall <julia.lawall@xxxxxxx>
Cc: Gilles Muller <Gilles.Muller@xxxxxxx>
Signed-off-by: Luis R. Rodriguez <mcgrof@xxxxxxxxxxxxxxxx>
---
lib/bpcoccinelle.py | 1 +
1 file changed, 1 insertion(+)
diff --git a/lib/bpcoccinelle.py b/lib/bpcoccinelle.py
index bd276c7..75a0b37 100644
--- a/lib/bpcoccinelle.py
+++ b/lib/bpcoccinelle.py
@@ -33,6 +33,7 @@ def spatch(cocci_file, outdir,
max_threads, thread_id, temp_dir, ret_q, extra_args=[]):
cmd = ['spatch', '--sp-file', cocci_file, '--in-place',
'--recursive-includes',
+ '--relax-include-path',
'--use-coccigrep',
'--backup-suffix', '.cocci_backup', '--dir', '.']
--
1.9.1
--
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