| // SPDX-License-Identifier: GPL-2.0-only | |
| /// 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. | |
| // Copyright: (C) 2013 Gilles Muller, INRIA/LIP6. | |
| // URL: https://coccinelle.gitlabpages.inria.fr/website | |
| // 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) |