From 29a36d4dec6cf7ad72e6e3337bf954096cbbb4cf Mon Sep 17 00:00:00 2001 From: Julia Lawall Date: Sat, 14 Jan 2012 23:41:54 +0100 Subject: scripts/coccinelle: improve the coverage of some semantic patches 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 Signed-off-by: Michal Marek --- scripts/coccinelle/api/memdup_user.cocci | 39 ++++++++++++++++++++++++++------ 1 file changed, 32 insertions(+), 7 deletions(-) (limited to 'scripts/coccinelle/api/memdup_user.cocci') diff --git a/scripts/coccinelle/api/memdup_user.cocci b/scripts/coccinelle/api/memdup_user.cocci index 72ce012e878a..2efac289fd59 100644 --- a/scripts/coccinelle/api/memdup_user.cocci +++ b/scripts/coccinelle/api/memdup_user.cocci @@ -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") -- cgit