81 строка
1.5 KiB
Plaintext
81 строка
1.5 KiB
Plaintext
|
/// 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.
|
||
|
|
// URL: http://coccinelle.lip6.fr/
|
||
|
|
// Comments:
|
||
|
|
// Options: -no_includes -include_headers
|
||
|
|
|
||
|
|
virtual context
|
||
|
|
virtual org
|
||
|
|
virtual report
|
||
|
|
|
||
|
|
@r@
|
||
|
|
expression lock1,lock2,flags;
|
||
|
|
position p1,p2;
|
||
|
|
@@
|
||
|
|
|
||
|
|
(
|
||
|
|
spin_lock_irqsave@p1(lock1,flags)
|
||
|
|
|
|
||
|
|
read_lock_irqsave@p1(lock1,flags)
|
||
|
|
|
|
||
|
|
write_lock_irqsave@p1(lock1,flags)
|
||
|
|
)
|
||
|
|
... when != flags
|
||
|
|
(
|
||
|
|
spin_lock_irqsave(lock1,flags)
|
||
|
|
|
|
||
|
|
read_lock_irqsave(lock1,flags)
|
||
|
|
|
|
||
|
|
write_lock_irqsave(lock1,flags)
|
||
|
|
|
|
||
|
|
spin_lock_irqsave@p2(lock2,flags)
|
||
|
|
|
|
||
|
|
read_lock_irqsave@p2(lock2,flags)
|
||
|
|
|
|
||
|
|
write_lock_irqsave@p2(lock2,flags)
|
||
|
|
)
|
||
|
|
|
||
|
|
@d@
|
||
|
|
expression f <= r.flags;
|
||
|
|
expression lock1,lock2,flags;
|
||
|
|
position r.p1, r.p2;
|
||
|
|
@@
|
||
|
|
|
||
|
|
(
|
||
|
|
*spin_lock_irqsave@p1(lock1,flags)
|
||
|
|
|
|
||
|
|
*read_lock_irqsave@p1(lock1,flags)
|
||
|
|
|
|
||
|
|
*write_lock_irqsave@p1(lock1,flags)
|
||
|
|
)
|
||
|
|
... when != f
|
||
|
|
(
|
||
|
|
*spin_lock_irqsave@p2(lock2,flags)
|
||
|
|
|
|
||
|
|
*read_lock_irqsave@p2(lock2,flags)
|
||
|
|
|
|
||
|
|
*write_lock_irqsave@p2(lock2,flags)
|
||
|
|
)
|
||
|
|
|
||
|
|
// ----------------------------------------------------------------------
|
||
|
|
|
||
|
|
@script:python depends on d && org@
|
||
|
|
p1 << r.p1;
|
||
|
|
p2 << r.p2;
|
||
|
|
@@
|
||
|
|
|
||
|
|
cocci.print_main("original lock",p1)
|
||
|
|
cocci.print_secs("nested lock+irqsave that reuses flags",p2)
|
||
|
|
|
||
|
|
@script:python depends on d && report@
|
||
|
|
p1 << r.p1;
|
||
|
|
p2 << r.p2;
|
||
|
|
@@
|
||
|
|
|
||
|
|
msg="ERROR: nested lock+irqsave that reuses flags from %s." % (p1[0].line)
|
||
|
|
coccilib.report.print_report(p2[0], msg)
|