mirror of
https://xff.cz/git/u-boot/
synced 2025-10-31 18:35:42 +01:00
06feb5d0bf
Add some useful static code analysis scripts for coccinelle copied from the Linux kernel v4.14-rc8: Warn on check against NULL before calling free. scripts/coccinelle/free/ifnullfree.cocci Detect superfluous NULL check for list iterator. scripts/coccinelle/iterators/itnull.cocci Check if list iterator is reassigned. scripts/coccinelle/iterators/list_entry_update.cocci Check if list iterator is used after loop. scripts/coccinelle/iterators/use_after_iter.cocci Find wrong argument of sizeof in allocation function: scripts/coccinelle/misc/badty.cocci Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
63 lines
1.4 KiB
Plaintext
63 lines
1.4 KiB
Plaintext
/// list_for_each_entry uses its first argument to get from one element of
|
|
/// the list to the next, so it is usually not a good idea to reassign it.
|
|
/// The first rule finds such a reassignment and the second rule checks
|
|
/// that there is a path from the reassignment back to the top of the loop.
|
|
///
|
|
// 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@
|
|
iterator name list_for_each_entry;
|
|
expression x,E;
|
|
position p1,p2;
|
|
@@
|
|
|
|
list_for_each_entry@p1(x,...) { <... x =@p2 E ...> }
|
|
|
|
@depends on context && !org && !report@
|
|
expression x,E;
|
|
position r.p1,r.p2;
|
|
statement S;
|
|
@@
|
|
|
|
*x =@p2 E
|
|
...
|
|
list_for_each_entry@p1(x,...) S
|
|
|
|
// ------------------------------------------------------------------------
|
|
|
|
@back depends on (org || report) && !context exists@
|
|
expression x,E;
|
|
position r.p1,r.p2;
|
|
statement S;
|
|
@@
|
|
|
|
x =@p2 E
|
|
...
|
|
list_for_each_entry@p1(x,...) S
|
|
|
|
@script:python depends on back && org@
|
|
p1 << r.p1;
|
|
p2 << r.p2;
|
|
@@
|
|
|
|
cocci.print_main("iterator",p1)
|
|
cocci.print_secs("update",p2)
|
|
|
|
@script:python depends on back && report@
|
|
p1 << r.p1;
|
|
p2 << r.p2;
|
|
@@
|
|
|
|
msg = "iterator with update on line %s" % (p2[0].line)
|
|
coccilib.report.print_report(p1[0],msg)
|