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 <Julia.Lawall@lip6.fr>
Signed-off-by: Michal Marek <mmarek@suse.cz>
diff --git a/scripts/coccinelle/locks/call_kern.cocci b/scripts/coccinelle/locks/call_kern.cocci
index 00af534..8f10b49 100644
--- a/scripts/coccinelle/locks/call_kern.cocci
+++ b/scripts/coccinelle/locks/call_kern.cocci
@@ -1,17 +1,20 @@
/// Find functions that refer to GFP_KERNEL but are called with locks held.
-/// The proposed change of converting the GFP_KERNEL is not necessarily the
-/// correct one. It may be desired to unlock the lock, or to not call the
-/// function under the lock in the first place.
+//# The proposed change of converting the GFP_KERNEL is not necessarily the
+//# correct one. It may be desired to unlock the lock, or to not call the
+//# function under the lock in the first place.
///
// Confidence: Moderate
-// Copyright: (C) 2010 Nicolas Palix, DIKU. GPLv2.
-// Copyright: (C) 2010 Julia Lawall, DIKU. GPLv2.
-// Copyright: (C) 2010 Gilles Muller, INRIA/LiP6. GPLv2.
+// Copyright: (C) 2012 Nicolas Palix. GPLv2.
+// Copyright: (C) 2012 Julia Lawall, INRIA/LIP6. GPLv2.
+// Copyright: (C) 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
@gfp exists@
identifier fn;
@@ -32,28 +35,29 @@
... when any
}
-@locked@
+@locked exists@
identifier gfp.fn;
+position p1,p2;
@@
(
-read_lock_irq
+read_lock_irq@p1
|
-write_lock_irq
+write_lock_irq@p1
|
-read_lock_irqsave
+read_lock_irqsave@p1
|
-write_lock_irqsave
+write_lock_irqsave@p1
|
-spin_lock
+spin_lock@p1
|
-spin_trylock
+spin_trylock@p1
|
-spin_lock_irq
+spin_lock_irq@p1
|
-spin_lock_irqsave
+spin_lock_irqsave@p1
|
-local_irq_disable
+local_irq_disable@p1
)
(...)
... when != read_unlock_irq(...)
@@ -64,11 +68,38 @@
when != spin_unlock_irq(...)
when != spin_unlock_irqrestore(...)
when != local_irq_enable(...)
-fn(...)
+fn@p2(...)
-@depends on locked@
+@depends on locked && patch@
position gfp.p;
@@
- GFP_KERNEL@p
+ GFP_ATOMIC
+
+@depends on locked && !patch@
+position gfp.p;
+@@
+
+* GFP_KERNEL@p
+
+@script:python depends on !patch && org@
+p << gfp.p;
+fn << gfp.fn;
+p1 << locked.p1;
+p2 << locked.p2;
+@@
+
+cocci.print_main("lock",p1)
+cocci.print_secs("call",p2)
+cocci.print_secs("GFP_KERNEL",p)
+
+@script:python depends on !patch && report@
+p << gfp.p;
+fn << gfp.fn;
+p1 << locked.p1;
+p2 << locked.p2;
+@@
+
+msg = "ERROR: function %s called on line %s inside lock on line %s but uses GFP_KERNEL" % (fn,p2[0].line,p1[0].line)
+coccilib.report.print_report(p[0], msg)
diff --git a/scripts/coccinelle/locks/flags.cocci b/scripts/coccinelle/locks/flags.cocci
index b4344d8..1c4ffe6 100644
--- a/scripts/coccinelle/locks/flags.cocci
+++ b/scripts/coccinelle/locks/flags.cocci
@@ -1,9 +1,9 @@
/// Find nested lock+irqsave functions that use the same flags variables
///
// 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
@@ -12,7 +12,7 @@
virtual org
virtual report
-@r@
+@r exists@
expression lock1,lock2,flags;
position p1,p2;
@@
@@ -39,7 +39,7 @@
write_lock_irqsave@p2(lock2,flags)
)
-@d@
+@d exists@
expression f <= r.flags;
expression lock1,lock2,flags;
position r.p1, r.p2;
@@ -76,5 +76,5 @@
p2 << r.p2;
@@
-msg="ERROR: nested lock+irqsave that reuses flags from %s." % (p1[0].line)
+msg="ERROR: nested lock+irqsave that reuses flags from line %s." % (p1[0].line)
coccilib.report.print_report(p2[0], msg)
diff --git a/scripts/coccinelle/locks/mini_lock.cocci b/scripts/coccinelle/locks/mini_lock.cocci
index 7641a29..3267d74 100644
--- a/scripts/coccinelle/locks/mini_lock.cocci
+++ b/scripts/coccinelle/locks/mini_lock.cocci
@@ -6,13 +6,14 @@
/// function call that releases the lock.
///
// Confidence: Moderate
-// 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 context
virtual org
virtual report
@@ -57,7 +58,7 @@
for(...;...;...) { <+... return@r ...; ...+> }
-@err@
+@err exists@
expression E1;
position prelocked.p;
position up != prelocked.p1;
@@ -65,14 +66,14 @@
identifier lock,unlock;
@@
-lock(E1@p,...);
+*lock(E1@p,...);
<+... when != E1
if (...) {
... when != E1
- return@r ...;
+* return@r ...;
}
...+>
-unlock@up(E1,...);
+*unlock@up(E1,...);
@script:python depends on org@
p << prelocked.p1;