diff options
| -rw-r--r-- | Documentation/coccinelle.txt | 4 | ||||
| -rwxr-xr-x | scripts/coccicheck | 39 | ||||
| -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 | ||||
| -rwxr-xr-x | scripts/package/mkspec | 2 | ||||
| -rwxr-xr-x | scripts/tags.sh | 50 |
7 files changed, 302 insertions, 34 deletions
diff --git a/Documentation/coccinelle.txt b/Documentation/coccinelle.txt index cf44eb6499b..dffa2d620d6 100644 --- a/Documentation/coccinelle.txt +++ b/Documentation/coccinelle.txt @@ -87,6 +87,10 @@ As any static code analyzer, Coccinelle produces false positives. Thus, reports must be carefully checked, and patches reviewed. +To enable verbose messages set the V= variable, for example: + + make coccicheck MODE=report V=1 + Using Coccinelle with a single semantic patch ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ diff --git a/scripts/coccicheck b/scripts/coccicheck index 1a49d1c7ecf..85d31899ad9 100755 --- a/scripts/coccicheck +++ b/scripts/coccicheck @@ -2,6 +2,15 @@ SPATCH="`which ${SPATCH:=spatch}`" +# The verbosity may be set by the environmental parameter V= +# as for example with 'make V=1 coccicheck' + +if [ -n "$V" -a "$V" != "0" ]; then + VERBOSE=1 +else + VERBOSE=0 +fi + if [ "$C" = "1" -o "$C" = "2" ]; then ONLINE=1 @@ -46,6 +55,14 @@ if [ "$ONLINE" = "0" ] ; then echo '' fi +run_cmd() { + if [ $VERBOSE -ne 0 ] ; then + echo "Running: $@" + fi + eval $@ +} + + coccinelle () { COCCI="$1" @@ -55,7 +72,7 @@ coccinelle () { # # $SPATCH -D $MODE $FLAGS -parse_cocci $COCCI $OPT > /dev/null - if [ "$ONLINE" = "0" ] ; then + if [ $VERBOSE -ne 0 ] ; then FILE=`echo $COCCI | sed "s|$srctree/||"` @@ -91,15 +108,21 @@ coccinelle () { fi if [ "$MODE" = "chain" ] ; then - $SPATCH -D patch $FLAGS -sp_file $COCCI $OPT $OPTIONS || \ - $SPATCH -D report $FLAGS -sp_file $COCCI $OPT $OPTIONS -no_show_diff || \ - $SPATCH -D context $FLAGS -sp_file $COCCI $OPT $OPTIONS || \ - $SPATCH -D org $FLAGS -sp_file $COCCI $OPT $OPTIONS -no_show_diff || exit 1 + run_cmd $SPATCH -D patch \ + $FLAGS -sp_file $COCCI $OPT $OPTIONS || \ + run_cmd $SPATCH -D report \ + $FLAGS -sp_file $COCCI $OPT $OPTIONS -no_show_diff || \ + run_cmd $SPATCH -D context \ + $FLAGS -sp_file $COCCI $OPT $OPTIONS || \ + run_cmd $SPATCH -D org \ + $FLAGS -sp_file $COCCI $OPT $OPTIONS -no_show_diff || exit 1 elif [ "$MODE" = "rep+ctxt" ] ; then - $SPATCH -D report $FLAGS -sp_file $COCCI $OPT $OPTIONS -no_show_diff && \ - $SPATCH -D context $FLAGS -sp_file $COCCI $OPT $OPTIONS || exit 1 + run_cmd $SPATCH -D report \ + $FLAGS -sp_file $COCCI $OPT $OPTIONS -no_show_diff && \ + run_cmd $SPATCH -D context \ + $FLAGS -sp_file $COCCI $OPT $OPTIONS || exit 1 else - $SPATCH -D $MODE $FLAGS -sp_file $COCCI $OPT $OPTIONS || exit 1 + run_cmd $SPATCH -D $MODE $FLAGS -sp_file $COCCI $OPT $OPTIONS || exit 1 fi } diff --git a/scripts/coccinelle/misc/memcpy-assign.cocci b/scripts/coccinelle/misc/memcpy-assign.cocci new file mode 100644 index 00000000000..afd058be497 --- /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 00000000000..4a28cef1484 --- /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 00000000000..a47eba2edc9 --- /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) diff --git a/scripts/package/mkspec b/scripts/package/mkspec index 4bf17ddf7c7..fbbfd08853d 100755 --- a/scripts/package/mkspec +++ b/scripts/package/mkspec @@ -95,7 +95,7 @@ echo 'cp $KBUILD_IMAGE $RPM_BUILD_ROOT'"/boot/vmlinuz-$KERNELRELEASE" echo "%endif" echo "%endif" -echo 'make %{?_smp_mflags} INSTALL_HDR_PATH=$RPM_BUILD_ROOT/usr headers_install' +echo 'make %{?_smp_mflags} INSTALL_HDR_PATH=$RPM_BUILD_ROOT/usr KBUILD_SRC= headers_install' echo 'cp System.map $RPM_BUILD_ROOT'"/boot/System.map-$KERNELRELEASE" echo 'cp .config $RPM_BUILD_ROOT'"/boot/config-$KERNELRELEASE" diff --git a/scripts/tags.sh b/scripts/tags.sh index 65f9595acea..26a87e68afe 100755 --- a/scripts/tags.sh +++ b/scripts/tags.sh @@ -217,34 +217,34 @@ exuberant() emacs() { all_target_sources | xargs $1 -a \ - --regex='/^(ENTRY|_GLOBAL)(\([^)]*\)).*/\2/' \ + --regex='/^\(ENTRY\|_GLOBAL\)(\([^)]*\)).*/\2/' \ --regex='/^SYSCALL_DEFINE[0-9]?(\([^,)]*\).*/sys_\1/' \ --regex='/^TRACE_EVENT(\([^,)]*\).*/trace_\1/' \ --regex='/^DEFINE_EVENT([^,)]*, *\([^,)]*\).*/trace_\1/' \ - --regex='/PAGEFLAG\(([^,)]*).*/Page\1/' \ - --regex='/PAGEFLAG\(([^,)]*).*/SetPage\1/' \ - --regex='/PAGEFLAG\(([^,)]*).*/ClearPage\1/' \ - --regex='/TESTSETFLAG\(([^,)]*).*/TestSetPage\1/' \ - --regex='/TESTPAGEFLAG\(([^,)]*).*/Page\1/' \ - --regex='/SETPAGEFLAG\(([^,)]*).*/SetPage\1/' \ - --regex='/__SETPAGEFLAG\(([^,)]*).*/__SetPage\1/' \ - --regex='/TESTCLEARFLAG\(([^,)]*).*/TestClearPage\1/' \ - --regex='/__TESTCLEARFLAG\(([^,)]*).*/TestClearPage\1/' \ - --regex='/CLEARPAGEFLAG\(([^,)]*).*/ClearPage\1/' \ - --regex='/__CLEARPAGEFLAG\(([^,)]*).*/__ClearPage\1/' \ - --regex='/__PAGEFLAG\(([^,)]*).*/__SetPage\1/' \ - --regex='/__PAGEFLAG\(([^,)]*).*/__ClearPage\1/' \ - --regex='/PAGEFLAG_FALSE\(([^,)]*).*/Page\1/' \ - --regex='/TESTSCFLAG\(([^,)]*).*/TestSetPage\1/' \ - --regex='/TESTSCFLAG\(([^,)]*).*/TestClearPage\1/' \ - --regex='/SETPAGEFLAG_NOOP\(([^,)]*).*/SetPage\1/' \ - --regex='/CLEARPAGEFLAG_NOOP\(([^,)]*).*/ClearPage\1/' \ - --regex='/__CLEARPAGEFLAG_NOOP\(([^,)]*).*/__ClearPage\1/' \ - --regex='/TESTCLEARFLAG_FALSE\(([^,)]*).*/TestClearPage\1/' \ - --regex='/__TESTCLEARFLAG_FALSE\(([^,)]*).*/__TestClearPage\1/' \ - --regex='/_PE\(([^,)]*).*/PEVENT_ERRNO__\1/' \ - --regex='/PCI_OP_READ\(([a-z]*[a-z]).*[1-4]\)/pci_bus_read_config_\1/' \ - --regex='/PCI_OP_WRITE\(([a-z]*[a-z]).*[1-4]\)/pci_bus_write_config_\1/' + --regex='/PAGEFLAG(\([^,)]*\).*/Page\1/' \ + --regex='/PAGEFLAG(\([^,)]*\).*/SetPage\1/' \ + --regex='/PAGEFLAG(\([^,)]*\).*/ClearPage\1/' \ + --regex='/TESTSETFLAG(\([^,)]*\).*/TestSetPage\1/' \ + --regex='/TESTPAGEFLAG(\([^,)]*\).*/Page\1/' \ + --regex='/SETPAGEFLAG(\([^,)]*\).*/SetPage\1/' \ + --regex='/__SETPAGEFLAG(\([^,)]*\).*/__SetPage\1/' \ + --regex='/TESTCLEARFLAG(\([^,)]*\).*/TestClearPage\1/' \ + --regex='/__TESTCLEARFLAG(\([^,)]*\).*/TestClearPage\1/' \ + --regex='/CLEARPAGEFLAG(\([^,)]*\).*/ClearPage\1/' \ + --regex='/__CLEARPAGEFLAG(\([^,)]*\).*/__ClearPage\1/' \ + --regex='/__PAGEFLAG(\([^,)]*\).*/__SetPage\1/' \ + --regex='/__PAGEFLAG(\([^,)]*\).*/__ClearPage\1/' \ + --regex='/PAGEFLAG_FALSE(\([^,)]*\).*/Page\1/' \ + --regex='/TESTSCFLAG(\([^,)]*\).*/TestSetPage\1/' \ + --regex='/TESTSCFLAG(\([^,)]*\).*/TestClearPage\1/' \ + --regex='/SETPAGEFLAG_NOOP(\([^,)]*\).*/SetPage\1/' \ + --regex='/CLEARPAGEFLAG_NOOP(\([^,)]*\).*/ClearPage\1/' \ + --regex='/__CLEARPAGEFLAG_NOOP(\([^,)]*\).*/__ClearPage\1/' \ + --regex='/TESTCLEARFLAG_FALSE(\([^,)]*\).*/TestClearPage\1/' \ + --regex='/__TESTCLEARFLAG_FALSE(\([^,)]*\).*/__TestClearPage\1/' \ + --regex='/_PE(\([^,)]*\).*/PEVENT_ERRNO__\1/' \ + --regex='/PCI_OP_READ(\([a-z]*[a-z]\).*[1-4])/pci_bus_read_config_\1/' \ + --regex='/PCI_OP_WRITE(\([a-z]*[a-z]\).*[1-4])/pci_bus_write_config_\1/' all_kconfigs | xargs $1 -a \ --regex='/^[ \t]*\(\(menu\)*config\)[ \t]+\([a-zA-Z0-9_]+\)/\3/' |