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-rw-r--r--scripts/Makefile.help3
-rwxr-xr-xscripts/checkkconfigsymbols.sh2
-rwxr-xr-xscripts/coccicheck80
-rw-r--r--scripts/coccinelle/alloc/drop_kmalloc_cast.cocci67
-rw-r--r--scripts/coccinelle/alloc/kzalloc-simple.cocci82
-rw-r--r--scripts/coccinelle/deref_null.cocci293
-rw-r--r--scripts/coccinelle/err_cast.cocci56
-rw-r--r--scripts/coccinelle/resource_size.cocci93
-rwxr-xr-xscripts/decodecode10
-rw-r--r--scripts/dtc/fstree.c1
-rw-r--r--scripts/kconfig/.gitignore1
11 files changed, 682 insertions, 6 deletions
diff --git a/scripts/Makefile.help b/scripts/Makefile.help
new file mode 100644
index 00000000000..d03608f5db0
--- /dev/null
+++ b/scripts/Makefile.help
@@ -0,0 +1,3 @@
1
2checker-help:
3 @echo ' coccicheck - Check with Coccinelle.'
diff --git a/scripts/checkkconfigsymbols.sh b/scripts/checkkconfigsymbols.sh
index 46be3c5a62b..2ca49bb31ef 100755
--- a/scripts/checkkconfigsymbols.sh
+++ b/scripts/checkkconfigsymbols.sh
@@ -14,7 +14,7 @@ find $paths -name '*.[chS]' -o -name 'Makefile' -o -name 'Makefile*[^~]'| while
14do 14do
15 # Output the bare Kconfig variable and the filename; the _MODULE part at 15 # Output the bare Kconfig variable and the filename; the _MODULE part at
16 # the end is not removed here (would need perl an not-hungry regexp for that). 16 # the end is not removed here (would need perl an not-hungry regexp for that).
17 sed -ne 's!^.*\<\(UML_\)\?CONFIG_\([0-9A-Z_]\+\).*!\2 '$i'!p' < $i 17 sed -ne 's!^.*\<\(UML_\)\?CONFIG_\([0-9A-Za-z_]\+\).*!\2 '$i'!p' < $i
18done | \ 18done | \
19# Smart "sort|uniq" implemented in awk and tuned to collect the names of all 19# Smart "sort|uniq" implemented in awk and tuned to collect the names of all
20# files which use a given symbol 20# files which use a given symbol
diff --git a/scripts/coccicheck b/scripts/coccicheck
new file mode 100755
index 00000000000..b8bcf1f7bed
--- /dev/null
+++ b/scripts/coccicheck
@@ -0,0 +1,80 @@
1#!/bin/sh
2
3SPATCH="`which ${SPATCH:=spatch}`"
4
5if [ "$C" = "1" -o "$C" = "2" ]; then
6 ONLINE=1
7
8# This requires Coccinelle >= 0.2.3
9# FLAGS="-ignore_unknown_options -very_quiet"
10# OPTIONS=$*
11
12# Workaround for Coccinelle < 0.2.3
13 FLAGS="-I $srctree/include -very_quiet"
14 shift $(( $# - 1 ))
15 OPTIONS=$1
16else
17 ONLINE=0
18 FLAGS="-very_quiet"
19fi
20
21if [ ! -x "$SPATCH" ]; then
22 echo 'spatch is part of the Coccinelle project and is available at http://coccinelle.lip6.fr/'
23 exit 1
24fi
25
26if [ "$MODE" = "" ] ; then
27 if [ "$ONLINE" = "0" ] ; then
28 echo 'You have not explicitly specify the mode to use. Fallback to "report".'
29 echo 'You can specify the mode with "make coccicheck MODE=<mode>"'
30 echo 'Available modes are: report, patch, context, org'
31 fi
32 MODE="report"
33fi
34
35if [ "$ONLINE" = "0" ] ; then
36 echo ''
37 echo 'Please check for false positives in the output before submitting a patch.'
38 echo 'When using "patch" mode, carefully review the patch before submitting it.'
39 echo ''
40fi
41
42coccinelle () {
43 COCCI="$1"
44
45 OPT=`grep "Option" $COCCI | cut -d':' -f2`
46
47# The option '-parse_cocci' can be used to syntaxically check the SmPL files.
48#
49# $SPATCH -D $MODE $FLAGS -parse_cocci $COCCI $OPT > /dev/null
50
51 if [ "$ONLINE" = "0" ] ; then
52
53 FILE=`echo $COCCI | sed "s|$srctree/||"`
54
55 echo "Processing `basename $COCCI` with option(s) \"$OPT\""
56 echo 'Message example to submit a patch:'
57
58 sed -e '/\/\/\//!d' -e 's|^///||' $COCCI
59
60 echo ' The semantic patch that makes this change is available'
61 echo " in $FILE."
62 echo ''
63 echo ' More information about semantic patching is available at'
64 echo ' http://coccinelle.lip6.fr/'
65 echo ''
66
67 $SPATCH -D $MODE $FLAGS -sp_file $COCCI $OPT -dir $srctree || exit 1
68 else
69 $SPATCH -D $MODE $FLAGS -sp_file $COCCI $OPT $OPTIONS || exit 1
70 fi
71
72}
73
74if [ "$COCCI" = "" ] ; then
75 for f in `find $srctree/scripts/coccinelle/ -name '*.cocci' -type f | sort`; do
76 coccinelle $f
77 done
78else
79 coccinelle $COCCI
80fi
diff --git a/scripts/coccinelle/alloc/drop_kmalloc_cast.cocci b/scripts/coccinelle/alloc/drop_kmalloc_cast.cocci
new file mode 100644
index 00000000000..7d4771d449c
--- /dev/null
+++ b/scripts/coccinelle/alloc/drop_kmalloc_cast.cocci
@@ -0,0 +1,67 @@
1///
2/// Casting (void *) value returned by kmalloc is useless
3/// as mentioned in Documentation/CodingStyle, Chap 14.
4///
5// Confidence: High
6// Copyright: 2009,2010 Nicolas Palix, DIKU. GPLv2.
7// URL: http://coccinelle.lip6.fr/
8// Options: -no_includes -include_headers
9//
10// Keywords: kmalloc, kzalloc, kcalloc
11// Version min: < 2.6.12 kmalloc
12// Version min: < 2.6.12 kcalloc
13// Version min: 2.6.14 kzalloc
14//
15
16virtual context
17virtual patch
18virtual org
19virtual report
20
21//----------------------------------------------------------
22// For context mode
23//----------------------------------------------------------
24
25@depends on context@
26type T;
27@@
28
29* (T *)
30 \(kmalloc\|kzalloc\|kcalloc\)(...)
31
32//----------------------------------------------------------
33// For patch mode
34//----------------------------------------------------------
35
36@depends on patch@
37type T;
38@@
39
40- (T *)
41 \(kmalloc\|kzalloc\|kcalloc\)(...)
42
43//----------------------------------------------------------
44// For org and report mode
45//----------------------------------------------------------
46
47@r depends on org || report@
48type T;
49position p;
50@@
51
52 (T@p *)\(kmalloc\|kzalloc\|kcalloc\)(...)
53
54@script:python depends on org@
55p << r.p;
56t << r.T;
57@@
58
59coccilib.org.print_safe_todo(p[0], t)
60
61@script:python depends on report@
62p << r.p;
63t << r.T;
64@@
65
66msg="WARNING: casting value returned by k[cmz]alloc to (%s *) is useless." % (t)
67coccilib.report.print_report(p[0], msg)
diff --git a/scripts/coccinelle/alloc/kzalloc-simple.cocci b/scripts/coccinelle/alloc/kzalloc-simple.cocci
new file mode 100644
index 00000000000..2eae828fc65
--- /dev/null
+++ b/scripts/coccinelle/alloc/kzalloc-simple.cocci
@@ -0,0 +1,82 @@
1///
2/// kzalloc should be used rather than kmalloc followed by memset 0
3///
4// Confidence: High
5// Copyright: (C) 2009-2010 Julia Lawall, Nicolas Palix, DIKU. GPLv2.
6// Copyright: (C) 2009-2010 Gilles Muller, INRIA/LiP6. GPLv2.
7// URL: http://coccinelle.lip6.fr/rules/kzalloc.html
8// Options: -no_includes -include_headers
9//
10// Keywords: kmalloc, kzalloc
11// Version min: < 2.6.12 kmalloc
12// Version min: 2.6.14 kzalloc
13//
14
15virtual context
16virtual patch
17virtual org
18virtual report
19
20//----------------------------------------------------------
21// For context mode
22//----------------------------------------------------------
23
24@depends on context@
25type T, T2;
26expression x;
27expression E1,E2;
28statement S;
29@@
30
31* x = (T)kmalloc(E1,E2);
32 if ((x==NULL) || ...) S
33* memset((T2)x,0,E1);
34
35//----------------------------------------------------------
36// For patch mode
37//----------------------------------------------------------
38
39@depends on patch@
40type T, T2;
41expression x;
42expression E1,E2;
43statement S;
44@@
45
46- x = (T)kmalloc(E1,E2);
47+ x = kzalloc(E1,E2);
48 if ((x==NULL) || ...) S
49- memset((T2)x,0,E1);
50
51//----------------------------------------------------------
52// For org mode
53//----------------------------------------------------------
54
55@r depends on org || report@
56type T, T2;
57expression x;
58expression E1,E2;
59statement S;
60position p;
61@@
62
63 x = (T)kmalloc@p(E1,E2);
64 if ((x==NULL) || ...) S
65 memset((T2)x,0,E1);
66
67@script:python depends on org@
68p << r.p;
69x << r.x;
70@@
71
72msg="%s" % (x)
73msg_safe=msg.replace("[","@(").replace("]",")")
74coccilib.org.print_todo(p[0], msg_safe)
75
76@script:python depends on report@
77p << r.p;
78x << r.x;
79@@
80
81msg="WARNING: kzalloc should be used for %s, instead of kmalloc/memset" % (x)
82coccilib.report.print_report(p[0], msg)
diff --git a/scripts/coccinelle/deref_null.cocci b/scripts/coccinelle/deref_null.cocci
new file mode 100644
index 00000000000..9969d76d0f4
--- /dev/null
+++ b/scripts/coccinelle/deref_null.cocci
@@ -0,0 +1,293 @@
1///
2/// A variable is dereference under a NULL test.
3/// Even though it is know to be NULL.
4///
5// Confidence: Moderate
6// Copyright: (C) 2010 Nicolas Palix, DIKU. GPLv2.
7// Copyright: (C) 2010 Julia Lawall, DIKU. GPLv2.
8// Copyright: (C) 2010 Gilles Muller, INRIA/LiP6. GPLv2.
9// URL: http://coccinelle.lip6.fr/
10// Comments: -I ... -all_includes can give more complete results
11// Options:
12
13virtual context
14virtual patch
15virtual org
16virtual report
17
18@initialize:python depends on !context && patch && !org && !report@
19
20import sys
21print >> sys.stderr, "This semantic patch does not support the 'patch' mode."
22
23@depends on patch@
24@@
25
26this_rule_should_never_matches();
27
28@ifm depends on !patch@
29expression *E;
30statement S1,S2;
31position p1;
32@@
33
34if@p1 ((E == NULL && ...) || ...) S1 else S2
35
36// The following two rules are separate, because both can match a single
37// expression in different ways
38@pr1 depends on !patch expression@
39expression *ifm.E;
40identifier f;
41position p1;
42@@
43
44 (E != NULL && ...) ? <+...E->f@p1...+> : ...
45
46@pr2 depends on !patch expression@
47expression *ifm.E;
48identifier f;
49position p2;
50@@
51
52(
53 (E != NULL) && ... && <+...E->f@p2...+>
54|
55 (E == NULL) || ... || <+...E->f@p2...+>
56|
57 sizeof(<+...E->f@p2...+>)
58)
59
60// For org and report modes
61
62@r depends on !context && !patch && (org || report) exists@
63expression subE <= ifm.E;
64expression *ifm.E;
65expression E1,E2;
66identifier f;
67statement S1,S2,S3,S4;
68iterator iter;
69position p!={pr1.p1,pr2.p2};
70position ifm.p1;
71@@
72
73if@p1 ((E == NULL && ...) || ...)
74{
75 ... when != if (...) S1 else S2
76(
77 iter(subE,...) S4 // no use
78|
79 list_remove_head(E2,subE,...)
80|
81 subE = E1
82|
83 for(subE = E1;...;...) S4
84|
85 subE++
86|
87 ++subE
88|
89 --subE
90|
91 subE--
92|
93 &subE
94|
95 E->f@p // bad use
96)
97 ... when any
98 return ...;
99}
100else S3
101
102@script:python depends on !context && !patch && !org && report@
103p << r.p;
104p1 << ifm.p1;
105x << ifm.E;
106@@
107
108msg="ERROR: %s is NULL but dereferenced." % (x)
109coccilib.report.print_report(p[0], msg)
110cocci.include_match(False)
111
112@script:python depends on !context && !patch && org && !report@
113p << r.p;
114p1 << ifm.p1;
115x << ifm.E;
116@@
117
118msg="ERROR: %s is NULL but dereferenced." % (x)
119msg_safe=msg.replace("[","@(").replace("]",")")
120cocci.print_main(msg_safe,p)
121cocci.include_match(False)
122
123@s depends on !context && !patch && (org || report) exists@
124expression subE <= ifm.E;
125expression *ifm.E;
126expression E1,E2;
127identifier f;
128statement S1,S2,S3,S4;
129iterator iter;
130position p!={pr1.p1,pr2.p2};
131position ifm.p1;
132@@
133
134if@p1 ((E == NULL && ...) || ...)
135{
136 ... when != if (...) S1 else S2
137(
138 iter(subE,...) S4 // no use
139|
140 list_remove_head(E2,subE,...)
141|
142 subE = E1
143|
144 for(subE = E1;...;...) S4
145|
146 subE++
147|
148 ++subE
149|
150 --subE
151|
152 subE--
153|
154 &subE
155|
156 E->f@p // bad use
157)
158 ... when any
159}
160else S3
161
162@script:python depends on !context && !patch && !org && report@
163p << s.p;
164p1 << ifm.p1;
165x << ifm.E;
166@@
167
168msg="ERROR: %s is NULL but dereferenced." % (x)
169coccilib.report.print_report(p[0], msg)
170
171@script:python depends on !context && !patch && org && !report@
172p << s.p;
173p1 << ifm.p1;
174x << ifm.E;
175@@
176
177msg="ERROR: %s is NULL but dereferenced." % (x)
178msg_safe=msg.replace("[","@(").replace("]",")")
179cocci.print_main(msg_safe,p)
180
181// For context mode
182
183@depends on context && !patch && !org && !report exists@
184expression subE <= ifm.E;
185expression *ifm.E;
186expression E1,E2;
187identifier f;
188statement S1,S2,S3,S4;
189iterator iter;
190position p!={pr1.p1,pr2.p2};
191position ifm.p1;
192@@
193
194if@p1 ((E == NULL && ...) || ...)
195{
196 ... when != if (...) S1 else S2
197(
198 iter(subE,...) S4 // no use
199|
200 list_remove_head(E2,subE,...)
201|
202 subE = E1
203|
204 for(subE = E1;...;...) S4
205|
206 subE++
207|
208 ++subE
209|
210 --subE
211|
212 subE--
213|
214 &subE
215|
216* E->f@p // bad use
217)
218 ... when any
219 return ...;
220}
221else S3
222
223// The following three rules are duplicates of ifm, pr1 and pr2 respectively.
224// It is need because the previous rule as already made a "change".
225
226@ifm1 depends on !patch@
227expression *E;
228statement S1,S2;
229position p1;
230@@
231
232if@p1 ((E == NULL && ...) || ...) S1 else S2
233
234@pr11 depends on !patch expression@
235expression *ifm1.E;
236identifier f;
237position p1;
238@@
239
240 (E != NULL && ...) ? <+...E->f@p1...+> : ...
241
242@pr12 depends on !patch expression@
243expression *ifm1.E;
244identifier f;
245position p2;
246@@
247
248(
249 (E != NULL) && ... && <+...E->f@p2...+>
250|
251 (E == NULL) || ... || <+...E->f@p2...+>
252|
253 sizeof(<+...E->f@p2...+>)
254)
255
256@depends on context && !patch && !org && !report exists@
257expression subE <= ifm1.E;
258expression *ifm1.E;
259expression E1,E2;
260identifier f;
261statement S1,S2,S3,S4;
262iterator iter;
263position p!={pr11.p1,pr12.p2};
264position ifm1.p1;
265@@
266
267if@p1 ((E == NULL && ...) || ...)
268{
269 ... when != if (...) S1 else S2
270(
271 iter(subE,...) S4 // no use
272|
273 list_remove_head(E2,subE,...)
274|
275 subE = E1
276|
277 for(subE = E1;...;...) S4
278|
279 subE++
280|
281 ++subE
282|
283 --subE
284|
285 subE--
286|
287 &subE
288|
289* E->f@p // bad use
290)
291 ... when any
292}
293else S3
diff --git a/scripts/coccinelle/err_cast.cocci b/scripts/coccinelle/err_cast.cocci
new file mode 100644
index 00000000000..2ce115000af
--- /dev/null
+++ b/scripts/coccinelle/err_cast.cocci
@@ -0,0 +1,56 @@
1///
2/// Use ERR_CAST inlined function instead of ERR_PTR(PTR_ERR(...))
3///
4// Confidence: High
5// Copyright: (C) 2009, 2010 Nicolas Palix, DIKU. GPLv2.
6// Copyright: (C) 2009, 2010 Julia Lawall, DIKU. GPLv2.
7// Copyright: (C) 2009, 2010 Gilles Muller, INRIA/LiP6. GPLv2.
8// URL: http://coccinelle.lip6.fr/
9// Options:
10//
11// Keywords: ERR_PTR, PTR_ERR, ERR_CAST
12// Version min: 2.6.25
13//
14
15virtual context
16virtual patch
17virtual org
18virtual report
19
20
21@ depends on context && !patch && !org && !report@
22expression x;
23@@
24
25* ERR_PTR(PTR_ERR(x))
26
27@ depends on !context && patch && !org && !report @
28expression x;
29@@
30
31- ERR_PTR(PTR_ERR(x))
32+ ERR_CAST(x)
33
34@r depends on !context && !patch && (org || report)@
35expression x;
36position p;
37@@
38
39 ERR_PTR@p(PTR_ERR(x))
40
41@script:python depends on org@
42p << r.p;
43x << r.x;
44@@
45
46msg="WARNING ERR_CAST can be used with %s" % (x)
47msg_safe=msg.replace("[","@(").replace("]",")")
48coccilib.org.print_todo(p[0], msg_safe)
49
50@script:python depends on report@
51p << r.p;
52x << r.x;
53@@
54
55msg="WARNING: ERR_CAST can be used with %s" % (x)
56coccilib.report.print_report(p[0], msg)
diff --git a/scripts/coccinelle/resource_size.cocci b/scripts/coccinelle/resource_size.cocci
new file mode 100644
index 00000000000..1935a58b39d
--- /dev/null
+++ b/scripts/coccinelle/resource_size.cocci
@@ -0,0 +1,93 @@
1///
2/// Use resource_size function on resource object
3/// instead of explicit computation.
4///
5// Confidence: High
6// Copyright: (C) 2009, 2010 Nicolas Palix, DIKU. GPLv2.
7// Copyright: (C) 2009, 2010 Julia Lawall, DIKU. GPLv2.
8// Copyright: (C) 2009, 2010 Gilles Muller, INRIA/LiP6. GPLv2.
9// URL: http://coccinelle.lip6.fr/
10// Options:
11//
12// Keywords: resource_size
13// Version min: 2.6.27 resource_size
14//
15
16virtual context
17virtual patch
18virtual org
19virtual report
20
21//----------------------------------------------------------
22// For context mode
23//----------------------------------------------------------
24
25@r_context depends on context && !patch && !org@
26struct resource *res;
27@@
28
29* (res->end - res->start) + 1
30
31//----------------------------------------------------------
32// For patch mode
33//----------------------------------------------------------
34
35@r_patch depends on !context && patch && !org@
36struct resource *res;
37@@
38
39- (res->end - res->start) + 1
40+ resource_size(res)
41
42//----------------------------------------------------------
43// For org mode
44//----------------------------------------------------------
45
46
47@r_org depends on !context && !patch && (org || report)@
48struct resource *res;
49position p;
50@@
51
52 (res->end@p - res->start) + 1
53
54@rbad_org depends on !context && !patch && (org || report)@
55struct resource *res;
56position p != r_org.p;
57@@
58
59 res->end@p - res->start
60
61@script:python depends on org@
62p << r_org.p;
63x << r_org.res;
64@@
65
66msg="ERROR with %s" % (x)
67msg_safe=msg.replace("[","@(").replace("]",")")
68coccilib.org.print_todo(p[0], msg_safe)
69
70@script:python depends on report@
71p << r_org.p;
72x << r_org.res;
73@@
74
75msg="ERROR: Missing resource_size with %s" % (x)
76coccilib.report.print_report(p[0], msg)
77
78@script:python depends on org@
79p << rbad_org.p;
80x << rbad_org.res;
81@@
82
83msg="WARNING with %s" % (x)
84msg_safe=msg.replace("[","@(").replace("]",")")
85coccilib.org.print_todo(p[0], msg_safe)
86
87@script:python depends on report@
88p << rbad_org.p;
89x << rbad_org.res;
90@@
91
92msg="WARNING: Suspicious code. resource_size is maybe missing with %s" % (x)
93coccilib.report.print_report(p[0], msg)
diff --git a/scripts/decodecode b/scripts/decodecode
index 8b30cc36744..18ba881c341 100755
--- a/scripts/decodecode
+++ b/scripts/decodecode
@@ -40,7 +40,7 @@ echo $code
40code=`echo $code | sed -e 's/.*Code: //'` 40code=`echo $code | sed -e 's/.*Code: //'`
41 41
42width=`expr index "$code" ' '` 42width=`expr index "$code" ' '`
43width=$[($width-1)/2] 43width=$((($width-1)/2))
44case $width in 44case $width in
451) type=byte ;; 451) type=byte ;;
462) type=2byte ;; 462) type=2byte ;;
@@ -48,10 +48,10 @@ case $width in
48esac 48esac
49 49
50disas() { 50disas() {
51 ${CROSS_COMPILE}as $AFLAGS -o $1.o $1.s &> /dev/null 51 ${CROSS_COMPILE}as $AFLAGS -o $1.o $1.s > /dev/null 2>&1
52 52
53 if [ "$ARCH" == "arm" ]; then 53 if [ "$ARCH" = "arm" ]; then
54 if [ $width == 2 ]; then 54 if [ $width -eq 2 ]; then
55 OBJDUMPFLAGS="-M force-thumb" 55 OBJDUMPFLAGS="-M force-thumb"
56 fi 56 fi
57 57
@@ -59,7 +59,7 @@ disas() {
59 fi 59 fi
60 60
61 ${CROSS_COMPILE}objdump $OBJDUMPFLAGS -S $1.o | \ 61 ${CROSS_COMPILE}objdump $OBJDUMPFLAGS -S $1.o | \
62 grep -v "/tmp\|Disassembly\|\.text\|^$" &> $1.dis 62 grep -v "/tmp\|Disassembly\|\.text\|^$" > $1.dis 2>&1
63} 63}
64 64
65marker=`expr index "$code" "\<"` 65marker=`expr index "$code" "\<"`
diff --git a/scripts/dtc/fstree.c b/scripts/dtc/fstree.c
index 766b2694d93..8fe1bdf239f 100644
--- a/scripts/dtc/fstree.c
+++ b/scripts/dtc/fstree.c
@@ -77,6 +77,7 @@ static struct node *read_fstree(const char *dirname)
77 free(tmpnam); 77 free(tmpnam);
78 } 78 }
79 79
80 closedir(d);
80 return tree; 81 return tree;
81} 82}
82 83
diff --git a/scripts/kconfig/.gitignore b/scripts/kconfig/.gitignore
index 6a36a76e660..624f6502e03 100644
--- a/scripts/kconfig/.gitignore
+++ b/scripts/kconfig/.gitignore
@@ -17,6 +17,7 @@ gconf.glade.h
17# 17#
18conf 18conf
19mconf 19mconf
20nconf
20qconf 21qconf
21gconf 22gconf
22kxgettext 23kxgettext
generated by cgit v1.2.2 (git 2.25.0) at 2026-05-27 12:18:39 -0400