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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /scripts/coccinelle/misc/orplus.cocci
Initial import
Diffstat (limited to 'scripts/coccinelle/misc/orplus.cocci')
-rw-r--r--scripts/coccinelle/misc/orplus.cocci55
1 files changed, 55 insertions, 0 deletions
diff --git a/scripts/coccinelle/misc/orplus.cocci b/scripts/coccinelle/misc/orplus.cocci
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+++ b/scripts/coccinelle/misc/orplus.cocci
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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;
+identifier i;
+expression e;
+@@
+
+(
+e | c@i
+|
+e & c@i
+|
+e |= c@i
+|
+e &= c@i
+)
+
+@s@
+constant r.c,c1;
+identifier i1;
+position p;
+@@
+
+(
+ c1 + c - 1
+|
+*c1@i1 +@p c
+)
+
+@script:python depends on org@
+p << s.p;
+@@
+
+cocci.print_main("sum of probable bitmasks, consider |",p)
+
+@script:python depends on report@
+p << s.p;
+@@
+
+msg = "WARNING: sum of probable bitmasks, consider |"
+coccilib.report.print_report(p[0],msg)