diff options
Diffstat (limited to 'scripts/coccinelle')
| -rw-r--r-- | scripts/coccinelle/misc/memcpy-assign.cocci | 103 | ||||
| -rw-r--r-- | scripts/coccinelle/misc/orplus.cocci | 55 | ||||
| -rw-r--r-- | scripts/coccinelle/misc/semicolon.cocci | 83 |
3 files changed, 241 insertions, 0 deletions
diff --git a/scripts/coccinelle/misc/memcpy-assign.cocci b/scripts/coccinelle/misc/memcpy-assign.cocci new file mode 100644 index 000000000000..afd058be497f --- /dev/null +++ b/scripts/coccinelle/misc/memcpy-assign.cocci @@ -0,0 +1,103 @@ +// +// Replace memcpy with struct assignment. +// +// Confidence: High +// Copyright: (C) 2012 Peter Senna Tschudin, INRIA/LIP6. GPLv2. +// URL: http://coccinelle.lip6.fr/ +// Comments: +// Options: --no-includes --include-headers + +virtual patch +virtual report +virtual context +virtual org + +@r1 depends on !patch@ +identifier struct_name; +struct struct_name to; +struct struct_name from; +struct struct_name *top; +struct struct_name *fromp; +position p; +@@ +memcpy@p(\(&(to)\|top\), \(&(from)\|fromp\), \(sizeof(to)\|sizeof(from)\|sizeof(struct struct_name)\|sizeof(*top)\|sizeof(*fromp)\)) + +@script:python depends on report@ +p << r1.p; +@@ +coccilib.report.print_report(p[0],"Replace memcpy with struct assignment") + +@depends on context@ +position r1.p; +@@ +*memcpy@p(...); + +@script:python depends on org@ +p << r1.p; +@@ +cocci.print_main("Replace memcpy with struct assignment",p) + +@depends on patch@ +identifier struct_name; +struct struct_name to; +struct struct_name from; +@@ +( +-memcpy(&(to), &(from), sizeof(to)); ++to = from; +| +-memcpy(&(to), &(from), sizeof(from)); ++to = from; +| +-memcpy(&(to), &(from), sizeof(struct struct_name)); ++to = from; +) + +@depends on patch@ +identifier struct_name; +struct struct_name to; +struct struct_name *from; +@@ +( +-memcpy(&(to), from, sizeof(to)); ++to = *from; +| +-memcpy(&(to), from, sizeof(*from)); ++to = *from; +| +-memcpy(&(to), from, sizeof(struct struct_name)); ++to = *from; +) + +@depends on patch@ +identifier struct_name; +struct struct_name *to; +struct struct_name from; +@@ +( +-memcpy(to, &(from), sizeof(*to)); ++ *to = from; +| +-memcpy(to, &(from), sizeof(from)); ++ *to = from; +| +-memcpy(to, &(from), sizeof(struct struct_name)); ++ *to = from; +) + +@depends on patch@ +identifier struct_name; +struct struct_name *to; +struct struct_name *from; +@@ +( +-memcpy(to, from, sizeof(*to)); ++ *to = *from; +| +-memcpy(to, from, sizeof(*from)); ++ *to = *from; +| +-memcpy(to, from, sizeof(struct struct_name)); ++ *to = *from; +) + diff --git a/scripts/coccinelle/misc/orplus.cocci b/scripts/coccinelle/misc/orplus.cocci new file mode 100644 index 000000000000..4a28cef1484e --- /dev/null +++ b/scripts/coccinelle/misc/orplus.cocci @@ -0,0 +1,55 @@ +/// 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) diff --git a/scripts/coccinelle/misc/semicolon.cocci b/scripts/coccinelle/misc/semicolon.cocci new file mode 100644 index 000000000000..a47eba2edc9e --- /dev/null +++ b/scripts/coccinelle/misc/semicolon.cocci @@ -0,0 +1,83 @@ +/// +/// Removes unneeded semicolon. +/// +// Confidence: Moderate +// Copyright: (C) 2012 Peter Senna Tschudin, INRIA/LIP6. GPLv2. +// URL: http://coccinelle.lip6.fr/ +// Comments: Some false positives on empty default cases in switch statements. +// Options: --no-includes --include-headers + +virtual patch +virtual report +virtual context +virtual org + +@r_default@ +position p; +@@ +switch (...) +{ +default: ...;@p +} + +@r_case@ +position p; +@@ +( +switch (...) +{ +case ...:;@p +} +| +switch (...) +{ +case ...:... +case ...:;@p +} +| +switch (...) +{ +case ...:... +case ...: +case ...:;@p +} +) + +@r1@ +statement S; +position p1; +position p != {r_default.p, r_case.p}; +identifier label; +@@ +( +label:; +| +S@p1;@p +) + +@script:python@ +p << r1.p; +p1 << r1.p1; +@@ +if p[0].line != p1[0].line_end: + cocci.include_match(False) + +@depends on patch@ +position r1.p; +@@ +-;@p + +@script:python depends on report@ +p << r1.p; +@@ +coccilib.report.print_report(p[0],"Unneeded semicolon") + +@depends on context@ +position r1.p; +@@ +*;@p + +@script:python depends on org@ +p << r1.p; +@@ +cocci.print_main("Unneeded semicolon",p) |