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| author | Nicolas Palix <npalix@diku.dk> | 2010-08-24 17:39:11 +0200 |
|---|---|---|
| committer | Michal Marek <mmarek@suse.cz> | 2010-08-31 11:43:13 +0200 |
| commit | 033456e2c507a9b804de56dd258af55f03764334 (patch) | |
| tree | 3155dd4692b56fdcfd4396d89231dce6d714e422 /scripts/coccinelle/misc | |
| parent | be8fe9d451936a7a412b02cb88a13ffe46879bcf (diff) | |
| download | linux-033456e2c507a9b804de56dd258af55f03764334.tar.gz linux-033456e2c507a9b804de56dd258af55f03764334.tar.bz2 linux-033456e2c507a9b804de56dd258af55f03764334.zip | |
Coccinelle: Add misc/doubleinit.cocci
Find duplicate field initializations. This has a high rate of false
positives due to #ifdefs, which Coccinelle is not aware of in a structure
initialization.
Signed-off-by: Nicolas Palix <npalix@diku.dk>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Michal Marek <mmarek@suse.cz>
Diffstat (limited to 'scripts/coccinelle/misc')
| -rw-r--r-- | scripts/coccinelle/misc/doubleinit.cocci | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/scripts/coccinelle/misc/doubleinit.cocci b/scripts/coccinelle/misc/doubleinit.cocci new file mode 100644 index 000000000000..55d7dc19dfe0 --- /dev/null +++ b/scripts/coccinelle/misc/doubleinit.cocci @@ -0,0 +1,53 @@ +/// Find duplicate field initializations. This has a high rate of false +/// positives due to #ifdefs, which Coccinelle is not aware of in a structure +/// initialization. +/// +// Confidence: Low +// Copyright: (C) 2010 Nicolas Palix, DIKU. GPLv2. +// Copyright: (C) 2010 Julia Lawall, DIKU. GPLv2. +// Copyright: (C) 2010 Gilles Muller, INRIA/LiP6. GPLv2. +// URL: http://coccinelle.lip6.fr/ +// Comments: +// Options: -no_includes -include_headers + +virtual org +virtual report + +@r@ +identifier I, s, fld; +position p0,p; +expression E; +@@ + +struct I s =@p0 { ... .fld@p = E, ...}; + +@s@ +identifier I, s, r.fld; +position r.p0,p; +expression E; +@@ + +struct I s =@p0 { ... .fld@p = E, ...}; + +@script:python depends on org@ +p0 << r.p0; +fld << r.fld; +ps << s.p; +pr << r.p; +@@ + +if int(ps[0].line) < int(pr[0].line) or (int(ps[0].line) == int(pr[0].line) and int(ps[0].column) < int(pr[0].column)): + cocci.print_main(fld,p0) + cocci.print_secs("s",ps) + cocci.print_secs("r",pr) + +@script:python depends on report@ +p0 << r.p0; +fld << r.fld; +ps << s.p; +pr << r.p; +@@ + +if int(ps[0].line) < int(pr[0].line) or (int(ps[0].line) == int(pr[0].line) and int(ps[0].column) < int(pr[0].column)): + msg = "%s: first occurrence %s, second occurrence %s" % (fld,ps[0].line,pr[0].line) + coccilib.report.print_report(p0[0],msg) |