6b13f685e
 김민수
BSP 최초 추가
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
/// Find nested lock+irqsave functions that use the same flags variables
///
// Confidence: High
// 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
@r exists@
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 exists@
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 line %s." % (p1[0].line)
coccilib.report.print_report(p2[0], msg)
|