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| /// Check for constants that are added but are used elsewhere as bitmasks
| /// The results should be checked manually to ensure that the nonzero
| /// bits in the two constants are actually disjoint.
| ///
| // Confidence: Moderate
| // Copyright: (C) 2013 Julia Lawall, INRIA/LIP6. GPLv2.
| // Copyright: (C) 2013 Gilles Muller, INRIA/LIP6. GPLv2.
| // URL: http://coccinelle.lip6.fr/
| // Comments:
| // Options: --no-includes --include-headers
|
| virtual org
| virtual report
| virtual context
|
| @r@
| constant c,c1;
| identifier i,i1;
| position p;
| @@
|
| (
| c1 + c - 1
| |
| c1@i1 +@p c@i
| )
|
| @s@
| constant r.c, r.c1;
| identifier i;
| expression e;
| @@
|
| (
| e | c@i
| |
| e & c@i
| |
| e |= c@i
| |
| e &= c@i
| |
| e | c1@i
| |
| e & c1@i
| |
| e |= c1@i
| |
| e &= c1@i
| )
|
| @depends on s@
| position r.p;
| constant c1,c2;
| @@
|
| * c1 +@p c2
|
| @script:python depends on s && org@
| p << r.p;
| @@
|
| cocci.print_main("sum of probable bitmasks, consider |",p)
|
| @script:python depends on s && report@
| p << r.p;
| @@
|
| msg = "WARNING: sum of probable bitmasks, consider |"
| coccilib.report.print_report(p[0],msg)
|
|
