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scripts/coccinelle: improve the coverage of some semantic patches

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This patch ensures that all semantic patches in the scripts/coccinelle
directory provide the report option.  Report messages that include line
numbers now have the line number preceded by "line" for easier subsequent
processing.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Michal Marek <mmarek@suse.cz>
This commit is contained in:
Julia Lawall
2012-01-14 23:41:54 +01:00
committed by Michal Marek
parent fb3f8af4ff
commit 29a36d4dec
11 changed files with 351 additions and 76 deletions
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39
scripts/coccinelle/api/memdup_user.cocci
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@@ -1,23 +1,25 @@
/// Use kmemdup_user rather than duplicating its implementation
/// Use memdup_user rather than duplicating its implementation
/// This is a little bit restricted to reduce false positives
///
// Confidence: High
// Copyright: (C) 2010 Nicolas Palix, DIKU. GPLv2.
// Copyright: (C) 2010 Julia Lawall, DIKU. GPLv2.
// Copyright: (C) 2010 Gilles Muller, INRIA/LiP6. GPLv2.
// Copyright: (C) 2010-2012 Nicolas Palix. GPLv2.
// Copyright: (C) 2010-2012 Julia Lawall, INRIA/LIP6. GPLv2.
// Copyright: (C) 2010-2012 Gilles Muller, INRIA/LiP6. GPLv2.
// URL: http://coccinelle.lip6.fr/
// Comments:
// Options: -no_includes -include_headers
virtual patch
virtual context
virtual org
virtual report
@@
@depends on patch@
expression from,to,size,flag;
position p;
identifier l1,l2;
@@
- to = \(kmalloc@p\|kzalloc@p\)(size,flag);
- to = \(kmalloc\|kzalloc\)(size,flag);
+ to = memdup_user(from,size);
if (
- to==NULL
@@ -33,3 +35,26 @@ identifier l1,l2;
- -EFAULT
- ...+>
- }
@r depends on !patch@
expression from,to,size,flag;
position p;
statement S1,S2;
@@
* to = \(kmalloc@p\|kzalloc@p\)(size,flag);
if (to==NULL || ...) S1
if (copy_from_user(to, from, size) != 0)
S2
@script:python depends on org@
p << r.p;
@@
coccilib.org.print_todo(p[0], "WARNING opportunity for memdep_user")
@script:python depends on report@
p << r.p;
@@
coccilib.report.print_report(p[0], "WARNING opportunity for memdep_user")