3a3c924273
This code is adapted from the QEMU checkpatch.pl script. It can check either a patch, a file or a git branch. It tries to warn about things that I believe might be style(9) violations. It's experimental, since I heavily hacked on the qemu version to get it to not complain (much) about iconic code in the tree. At the moment, it's use should be considered expermental. It will likely miss violations, and complain about code that's perfectly fine. It's offered as an experiment and to make it easier for contributors to submit patches.
2749 lines
74 KiB
Prolog
Executable File
2749 lines
74 KiB
Prolog
Executable File
#!/usr/bin/env perl
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# (c) 2001, Dave Jones. (the file handling bit)
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# (c) 2005, Joel Schopp <jschopp@austin.ibm.com> (the ugly bit)
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# (c) 2007,2008, Andy Whitcroft <apw@uk.ibm.com> (new conditions, test suite)
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# (c) 2008-2010 Andy Whitcroft <apw@canonical.com>
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# Licensed under the terms of the GNU GPL License version 2
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use strict;
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use warnings;
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use Term::ANSIColor qw(:constants);
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my $P = $0;
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$P =~ s@.*/@@g;
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our $SrcFile = qr{\.(?:h|c|cpp|s|S|pl|py|sh)$};
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my $V = '0.31';
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use Getopt::Long qw(:config no_auto_abbrev);
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my $quiet = 0;
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my $tree = 1;
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my $chk_signoff = 1;
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my $chk_patch = undef;
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my $chk_branch = undef;
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my $tst_only;
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my $emacs = 0;
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my $terse = 0;
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my $file = undef;
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my $color = "auto";
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my $no_warnings = 0;
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my $summary = 1;
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my $mailback = 0;
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my $summary_file = 0;
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my $root;
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my %debug;
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my $help = 0;
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sub help {
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my ($exitcode) = @_;
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print << "EOM";
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Usage:
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$P [OPTION]... [FILE]...
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$P [OPTION]... [GIT-REV-LIST]
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Version: $V
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Options:
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-q, --quiet quiet
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--patch treat FILE as patchfile
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--branch treat args as GIT revision list
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--emacs emacs compile window format
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--terse one line per report
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-f, --file treat FILE as regular source file
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--strict fail if only warnings are found
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--no-summary suppress the per-file summary
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--mailback only produce a report in case of warnings/errors
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--summary-file include the filename in summary
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--debug KEY=[0|1] turn on/off debugging of KEY, where KEY is one of
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'values', 'possible', 'type', and 'attr' (default
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is all off)
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--test-only=WORD report only warnings/errors containing WORD
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literally
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--color[=WHEN] Use colors 'always', 'never', or only when output
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is a terminal ('auto'). Default is 'auto'.
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-h, --help, --version display this help and exit
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When FILE is - read standard input.
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EOM
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exit($exitcode);
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}
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# Use at your own risk
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print "\n", MAGENTA, "WARNING:", RESET, " This code is highly experimental ... likely isn't a great style(9) match yet\n\n";
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# Perl's Getopt::Long allows options to take optional arguments after a space.
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# Prevent --color by itself from consuming other arguments
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foreach (@ARGV) {
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if ($_ eq "--color" || $_ eq "-color") {
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$_ = "--color=$color";
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}
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}
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GetOptions(
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'q|quiet+' => \$quiet,
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'tree!' => \$tree,
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'signoff!' => \$chk_signoff,
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'patch!' => \$chk_patch,
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'branch!' => \$chk_branch,
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'emacs!' => \$emacs,
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'terse!' => \$terse,
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'f|file!' => \$file,
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'strict!' => \$no_warnings,
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'root=s' => \$root,
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'summary!' => \$summary,
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'mailback!' => \$mailback,
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'summary-file!' => \$summary_file,
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'debug=s' => \%debug,
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'test-only=s' => \$tst_only,
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'color=s' => \$color,
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'no-color' => sub { $color = 'never'; },
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'h|help' => \$help,
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'version' => \$help
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) or help(1);
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help(0) if ($help);
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my $exit = 0;
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if ($#ARGV < 0) {
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print "$P: no input files\n";
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exit(1);
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}
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if (!defined $chk_branch && !defined $chk_patch && !defined $file) {
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$chk_branch = $ARGV[0] =~ /.\.\./ ? 1 : 0;
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$file = $ARGV[0] =~ /$SrcFile/ ? 1 : 0;
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$chk_patch = $chk_branch || $file ? 0 : 1;
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} elsif (!defined $chk_branch && !defined $chk_patch) {
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if ($file) {
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$chk_branch = $chk_patch = 0;
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} else {
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$chk_branch = $ARGV[0] =~ /.\.\./ ? 1 : 0;
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$chk_patch = $chk_branch ? 0 : 1;
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}
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} elsif (!defined $chk_branch && !defined $file) {
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if ($chk_patch) {
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$chk_branch = $file = 0;
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} else {
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$chk_branch = $ARGV[0] =~ /.\.\./ ? 1 : 0;
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$file = $chk_branch ? 0 : 1;
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}
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} elsif (!defined $chk_patch && !defined $file) {
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if ($chk_branch) {
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$chk_patch = $file = 0;
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} else {
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$file = $ARGV[0] =~ /$SrcFile/ ? 1 : 0;
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$chk_patch = $file ? 0 : 1;
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}
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} elsif (!defined $chk_branch) {
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$chk_branch = $chk_patch || $file ? 0 : 1;
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} elsif (!defined $chk_patch) {
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$chk_patch = $chk_branch || $file ? 0 : 1;
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} elsif (!defined $file) {
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$file = $chk_patch || $chk_branch ? 0 : 1;
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}
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if (($chk_patch && $chk_branch) ||
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($chk_patch && $file) ||
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($chk_branch && $file)) {
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die "Only one of --file, --branch, --patch is permitted\n";
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}
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if (!$chk_patch && !$chk_branch && !$file) {
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die "One of --file, --branch, --patch is required\n";
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}
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if ($color =~ /^always$/i) {
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$color = 1;
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} elsif ($color =~ /^never$/i) {
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$color = 0;
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} elsif ($color =~ /^auto$/i) {
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$color = (-t STDOUT);
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} else {
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die "Invalid color mode: $color\n";
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}
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my $dbg_values = 0;
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my $dbg_possible = 0;
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my $dbg_type = 0;
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my $dbg_attr = 0;
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my $dbg_adv_dcs = 0;
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my $dbg_adv_checking = 0;
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my $dbg_adv_apw = 0;
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for my $key (keys %debug) {
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## no critic
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eval "\${dbg_$key} = '$debug{$key}';";
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die "$@" if ($@);
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}
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my $rpt_cleaners = 0;
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if ($terse) {
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$emacs = 1;
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$quiet++;
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}
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my $emitted_corrupt = 0;
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our $Ident = qr{
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[A-Za-z_][A-Za-z\d_]*
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(?:\s*\#\#\s*[A-Za-z_][A-Za-z\d_]*)*
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}x;
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our $Storage = qr{extern|static|asmlinkage};
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our $Sparse = qr{
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__force
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}x;
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# Notes to $Attribute:
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our $Attribute = qr{
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const|
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volatile|
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QEMU_NORETURN|
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QEMU_WARN_UNUSED_RESULT|
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QEMU_SENTINEL|
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QEMU_PACKED|
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GCC_FMT_ATTR
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}x;
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our $Modifier;
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our $Inline = qr{inline};
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our $Member = qr{->$Ident|\.$Ident|\[[^]]*\]};
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our $Lval = qr{$Ident(?:$Member)*};
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our $Constant = qr{(?:[0-9]+|0x[0-9a-fA-F]+)[UL]*};
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our $Assignment = qr{(?:\*\=|/=|%=|\+=|-=|<<=|>>=|&=|\^=|\|=|=)};
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our $Compare = qr{<=|>=|==|!=|<|>};
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our $Operators = qr{
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<=|>=|==|!=|
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=>|->|<<|>>|<|>|!|~|
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&&|\|\||,|\^|\+\+|--|&|\||\+|-|\*|\/|%
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}x;
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our $NonptrType;
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our $Type;
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our $Declare;
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our $NON_ASCII_UTF8 = qr{
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[\xC2-\xDF][\x80-\xBF] # non-overlong 2-byte
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| \xE0[\xA0-\xBF][\x80-\xBF] # excluding overlongs
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| [\xE1-\xEC\xEE\xEF][\x80-\xBF]{2} # straight 3-byte
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| \xED[\x80-\x9F][\x80-\xBF] # excluding surrogates
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| \xF0[\x90-\xBF][\x80-\xBF]{2} # planes 1-3
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| [\xF1-\xF3][\x80-\xBF]{3} # planes 4-15
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| \xF4[\x80-\x8F][\x80-\xBF]{2} # plane 16
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}x;
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our $UTF8 = qr{
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[\x09\x0A\x0D\x20-\x7E] # ASCII
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| $NON_ASCII_UTF8
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}x;
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# some readers default to ISO-8859-1 when showing email source. detect
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# when UTF-8 is incorrectly interpreted as ISO-8859-1 and reencoded back.
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# False positives are possible but very unlikely.
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our $UTF8_MOJIBAKE = qr{
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\xC3[\x82-\x9F] \xC2[\x80-\xBF] # c2-df 80-bf
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| \xC3\xA0 \xC2[\xA0-\xBF] \xC2[\x80-\xBF] # e0 a0-bf 80-bf
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| \xC3[\xA1-\xAC\xAE\xAF] (?: \xC2[\x80-\xBF]){2} # e1-ec/ee/ef 80-bf 80-bf
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| \xC3\xAD \xC2[\x80-\x9F] \xC2[\x80-\xBF] # ed 80-9f 80-bf
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| \xC3\xB0 \xC2[\x90-\xBF] (?: \xC2[\x80-\xBF]){2} # f0 90-bf 80-bf 80-bf
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| \xC3[\xB1-\xB3] (?: \xC2[\x80-\xBF]){3} # f1-f3 80-bf 80-bf 80-bf
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| \xC3\xB4 \xC2[\x80-\x8F] (?: \xC2[\x80-\xBF]){2} # f4 80-b8 80-bf 80-bf
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}x;
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# There are still some false positives, but this catches most
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# common cases.
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our $typeTypedefs = qr{(?x:
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(?![KMGTPE]iB) # IEC binary prefix (do not match)
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[A-Z][A-Z\d_]*[a-z][A-Za-z\d_]* # camelcase
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| [A-Z][A-Z\d_]*AIOCB # all uppercase
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| [A-Z][A-Z\d_]*CPU # all uppercase
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| QEMUBH # all uppercase
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)};
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our @typeList = (
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qr{void},
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qr{(?:unsigned\s+)?char},
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qr{(?:unsigned\s+)?short},
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qr{(?:unsigned\s+)?int},
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qr{(?:unsigned\s+)?long},
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qr{(?:unsigned\s+)?long\s+int},
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qr{(?:unsigned\s+)?long\s+long},
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qr{(?:unsigned\s+)?long\s+long\s+int},
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qr{unsigned},
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qr{float},
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qr{double},
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qr{bool},
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qr{struct\s+$Ident},
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qr{union\s+$Ident},
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qr{enum\s+$Ident},
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qr{${Ident}_t},
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qr{${Ident}_handler},
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qr{${Ident}_handler_fn},
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qr{target_(?:u)?long},
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qr{hwaddr},
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);
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# This can be modified by sub possible. Since it can be empty, be careful
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# about regexes that always match, because they can cause infinite loops.
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our @modifierList = (
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);
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sub build_types {
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my $all = "(?x: \n" . join("|\n ", @typeList) . "\n)";
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if (@modifierList > 0) {
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my $mods = "(?x: \n" . join("|\n ", @modifierList) . "\n)";
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$Modifier = qr{(?:$Attribute|$Sparse|$mods)};
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} else {
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$Modifier = qr{(?:$Attribute|$Sparse)};
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}
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$NonptrType = qr{
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(?:$Modifier\s+|const\s+)*
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(?:
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(?:typeof|__typeof__)\s*\(\s*\**\s*$Ident\s*\)|
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(?:$typeTypedefs\b)|
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(?:${all}\b)
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)
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(?:\s+$Modifier|\s+const)*
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}x;
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$Type = qr{
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$NonptrType
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(?:[\s\*]+\s*const|[\s\*]+|(?:\s*\[\s*\])+)?
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(?:\s+$Inline|\s+$Modifier)*
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}x;
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$Declare = qr{(?:$Storage\s+)?$Type};
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}
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build_types();
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$chk_signoff = 0 if ($file);
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my @rawlines = ();
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my @lines = ();
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my $vname;
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if ($chk_branch) {
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my @patches;
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my %git_commits = ();
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my $HASH;
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open($HASH, "-|", "git", "log", "--reverse", "--no-merges", "--format=%H %s", $ARGV[0]) ||
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die "$P: git log --reverse --no-merges --format='%H %s' $ARGV[0] failed - $!\n";
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for my $line (<$HASH>) {
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$line =~ /^([0-9a-fA-F]{40,40}) (.*)$/;
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next if (!defined($1) || !defined($2));
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my $sha1 = $1;
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my $subject = $2;
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push(@patches, $sha1);
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$git_commits{$sha1} = $subject;
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}
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close $HASH;
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die "$P: no revisions returned for revlist '$ARGV[0]'\n"
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unless @patches;
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my $i = 1;
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my $num_patches = @patches;
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for my $hash (@patches) {
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my $FILE;
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open($FILE, '-|', "git", "show", "--patch-with-stat", $hash) ||
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die "$P: git show $hash - $!\n";
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while (<$FILE>) {
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chomp;
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push(@rawlines, $_);
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}
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close($FILE);
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$vname = substr($hash, 0, 12) . ' (' . $git_commits{$hash} . ')';
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if ($num_patches > 1 && $quiet == 0) {
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my $prefix = "$i/$num_patches";
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$prefix = BLUE . BOLD . $prefix . RESET if $color;
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print "$prefix Checking commit $vname\n";
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$vname = "Patch $i/$num_patches";
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} else {
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$vname = "Commit " . $vname;
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}
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if (!process($hash)) {
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$exit = 1;
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print "\n" if ($num_patches > 1 && $quiet == 0);
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}
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@rawlines = ();
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@lines = ();
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$i++;
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}
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} else {
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for my $filename (@ARGV) {
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my $FILE;
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if ($file) {
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open($FILE, '-|', "diff -u /dev/null $filename") ||
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die "$P: $filename: diff failed - $!\n";
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} elsif ($filename eq '-') {
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open($FILE, '<&STDIN');
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} else {
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open($FILE, '<', "$filename") ||
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die "$P: $filename: open failed - $!\n";
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}
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if ($filename eq '-') {
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$vname = 'Your patch';
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} else {
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$vname = $filename;
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}
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print "Checking $filename...\n" if @ARGV > 1 && $quiet == 0;
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while (<$FILE>) {
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chomp;
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push(@rawlines, $_);
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}
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close($FILE);
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if (!process($filename)) {
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$exit = 1;
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}
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@rawlines = ();
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@lines = ();
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}
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}
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exit($exit);
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sub top_of_kernel_tree {
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my ($root) = @_;
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my @tree_check = (
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"Makefile.inc1", "README.md", "sys",
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"usr.sbin"
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);
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foreach my $check (@tree_check) {
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if (! -e $root . '/' . $check) {
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return 0;
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}
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}
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return 1;
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}
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sub expand_tabs {
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my ($str) = @_;
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my $res = '';
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my $n = 0;
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for my $c (split(//, $str)) {
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if ($c eq "\t") {
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$res .= ' ';
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$n++;
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for (; ($n % 8) != 0; $n++) {
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$res .= ' ';
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}
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next;
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}
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$res .= $c;
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$n++;
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}
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return $res;
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}
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sub copy_spacing {
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(my $res = shift) =~ tr/\t/ /c;
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return $res;
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}
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sub line_stats {
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my ($line) = @_;
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# Drop the diff line leader and expand tabs
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$line =~ s/^.//;
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$line = expand_tabs($line);
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# Pick the indent from the front of the line.
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my ($white) = ($line =~ /^(\s*)/);
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return (length($line), length($white));
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}
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my $sanitise_quote = '';
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sub sanitise_line_reset {
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my ($in_comment) = @_;
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if ($in_comment) {
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$sanitise_quote = '*/';
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} else {
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$sanitise_quote = '';
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}
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}
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sub sanitise_line {
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my ($line) = @_;
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my $res = '';
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my $l = '';
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my $qlen = 0;
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my $off = 0;
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my $c;
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# Always copy over the diff marker.
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$res = substr($line, 0, 1);
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for ($off = 1; $off < length($line); $off++) {
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$c = substr($line, $off, 1);
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|
|
|
# Comments we are wacking completely including the begin
|
|
# and end, all to $;.
|
|
if ($sanitise_quote eq '' && substr($line, $off, 2) eq '/*') {
|
|
$sanitise_quote = '*/';
|
|
|
|
substr($res, $off, 2, "$;$;");
|
|
$off++;
|
|
next;
|
|
}
|
|
if ($sanitise_quote eq '*/' && substr($line, $off, 2) eq '*/') {
|
|
$sanitise_quote = '';
|
|
substr($res, $off, 2, "$;$;");
|
|
$off++;
|
|
next;
|
|
}
|
|
if ($sanitise_quote eq '' && substr($line, $off, 2) eq '//') {
|
|
$sanitise_quote = '//';
|
|
|
|
substr($res, $off, 2, $sanitise_quote);
|
|
$off++;
|
|
next;
|
|
}
|
|
|
|
# A \ in a string means ignore the next character.
|
|
if (($sanitise_quote eq "'" || $sanitise_quote eq '"') &&
|
|
$c eq "\\") {
|
|
substr($res, $off, 2, 'XX');
|
|
$off++;
|
|
next;
|
|
}
|
|
# Regular quotes.
|
|
if ($c eq "'" || $c eq '"') {
|
|
if ($sanitise_quote eq '') {
|
|
$sanitise_quote = $c;
|
|
|
|
substr($res, $off, 1, $c);
|
|
next;
|
|
} elsif ($sanitise_quote eq $c) {
|
|
$sanitise_quote = '';
|
|
}
|
|
}
|
|
|
|
#print "c<$c> SQ<$sanitise_quote>\n";
|
|
if ($off != 0 && $sanitise_quote eq '*/' && $c ne "\t") {
|
|
substr($res, $off, 1, $;);
|
|
} elsif ($off != 0 && $sanitise_quote eq '//' && $c ne "\t") {
|
|
substr($res, $off, 1, $;);
|
|
} elsif ($off != 0 && $sanitise_quote && $c ne "\t") {
|
|
substr($res, $off, 1, 'X');
|
|
} else {
|
|
substr($res, $off, 1, $c);
|
|
}
|
|
}
|
|
|
|
if ($sanitise_quote eq '//') {
|
|
$sanitise_quote = '';
|
|
}
|
|
|
|
# The pathname on a #include may be surrounded by '<' and '>'.
|
|
if ($res =~ /^.\s*\#\s*include\s+\<(.*)\>/) {
|
|
my $clean = 'X' x length($1);
|
|
$res =~ s@\<.*\>@<$clean>@;
|
|
|
|
# The whole of a #error is a string.
|
|
} elsif ($res =~ /^.\s*\#\s*(?:error|warning)\s+(.*)\b/) {
|
|
my $clean = 'X' x length($1);
|
|
$res =~ s@(\#\s*(?:error|warning)\s+).*@$1$clean@;
|
|
}
|
|
|
|
return $res;
|
|
}
|
|
|
|
sub ctx_statement_block {
|
|
my ($linenr, $remain, $off) = @_;
|
|
my $line = $linenr - 1;
|
|
my $blk = '';
|
|
my $soff = $off;
|
|
my $coff = $off - 1;
|
|
my $coff_set = 0;
|
|
|
|
my $loff = 0;
|
|
|
|
my $type = '';
|
|
my $level = 0;
|
|
my @stack = ();
|
|
my $p;
|
|
my $c;
|
|
my $len = 0;
|
|
|
|
my $remainder;
|
|
while (1) {
|
|
@stack = (['', 0]) if ($#stack == -1);
|
|
|
|
#warn "CSB: blk<$blk> remain<$remain>\n";
|
|
# If we are about to drop off the end, pull in more
|
|
# context.
|
|
if ($off >= $len) {
|
|
for (; $remain > 0; $line++) {
|
|
last if (!defined $lines[$line]);
|
|
next if ($lines[$line] =~ /^-/);
|
|
$remain--;
|
|
$loff = $len;
|
|
$blk .= $lines[$line] . "\n";
|
|
$len = length($blk);
|
|
$line++;
|
|
last;
|
|
}
|
|
# Bail if there is no further context.
|
|
#warn "CSB: blk<$blk> off<$off> len<$len>\n";
|
|
if ($off >= $len) {
|
|
last;
|
|
}
|
|
}
|
|
$p = $c;
|
|
$c = substr($blk, $off, 1);
|
|
$remainder = substr($blk, $off);
|
|
|
|
#warn "CSB: c<$c> type<$type> level<$level> remainder<$remainder> coff_set<$coff_set>\n";
|
|
|
|
# Handle nested #if/#else.
|
|
if ($remainder =~ /^#\s*(?:ifndef|ifdef|if)\s/) {
|
|
push(@stack, [ $type, $level ]);
|
|
} elsif ($remainder =~ /^#\s*(?:else|elif)\b/) {
|
|
($type, $level) = @{$stack[$#stack - 1]};
|
|
} elsif ($remainder =~ /^#\s*endif\b/) {
|
|
($type, $level) = @{pop(@stack)};
|
|
}
|
|
|
|
# Statement ends at the ';' or a close '}' at the
|
|
# outermost level.
|
|
if ($level == 0 && $c eq ';') {
|
|
last;
|
|
}
|
|
|
|
# An else is really a conditional as long as its not else if
|
|
if ($level == 0 && $coff_set == 0 &&
|
|
(!defined($p) || $p =~ /(?:\s|\}|\+)/) &&
|
|
$remainder =~ /^(else)(?:\s|{)/ &&
|
|
$remainder !~ /^else\s+if\b/) {
|
|
$coff = $off + length($1) - 1;
|
|
$coff_set = 1;
|
|
#warn "CSB: mark coff<$coff> soff<$soff> 1<$1>\n";
|
|
#warn "[" . substr($blk, $soff, $coff - $soff + 1) . "]\n";
|
|
}
|
|
|
|
if (($type eq '' || $type eq '(') && $c eq '(') {
|
|
$level++;
|
|
$type = '(';
|
|
}
|
|
if ($type eq '(' && $c eq ')') {
|
|
$level--;
|
|
$type = ($level != 0)? '(' : '';
|
|
|
|
if ($level == 0 && $coff < $soff) {
|
|
$coff = $off;
|
|
$coff_set = 1;
|
|
#warn "CSB: mark coff<$coff>\n";
|
|
}
|
|
}
|
|
if (($type eq '' || $type eq '{') && $c eq '{') {
|
|
$level++;
|
|
$type = '{';
|
|
}
|
|
if ($type eq '{' && $c eq '}') {
|
|
$level--;
|
|
$type = ($level != 0)? '{' : '';
|
|
|
|
if ($level == 0) {
|
|
if (substr($blk, $off + 1, 1) eq ';') {
|
|
$off++;
|
|
}
|
|
last;
|
|
}
|
|
}
|
|
$off++;
|
|
}
|
|
# We are truly at the end, so shuffle to the next line.
|
|
if ($off == $len) {
|
|
$loff = $len + 1;
|
|
$line++;
|
|
$remain--;
|
|
}
|
|
|
|
my $statement = substr($blk, $soff, $off - $soff + 1);
|
|
my $condition = substr($blk, $soff, $coff - $soff + 1);
|
|
|
|
#warn "STATEMENT<$statement>\n";
|
|
#warn "CONDITION<$condition>\n";
|
|
|
|
#print "coff<$coff> soff<$off> loff<$loff>\n";
|
|
|
|
return ($statement, $condition,
|
|
$line, $remain + 1, $off - $loff + 1, $level);
|
|
}
|
|
|
|
sub statement_lines {
|
|
my ($stmt) = @_;
|
|
|
|
# Strip the diff line prefixes and rip blank lines at start and end.
|
|
$stmt =~ s/(^|\n)./$1/g;
|
|
$stmt =~ s/^\s*//;
|
|
$stmt =~ s/\s*$//;
|
|
|
|
my @stmt_lines = ($stmt =~ /\n/g);
|
|
|
|
return $#stmt_lines + 2;
|
|
}
|
|
|
|
sub statement_rawlines {
|
|
my ($stmt) = @_;
|
|
|
|
my @stmt_lines = ($stmt =~ /\n/g);
|
|
|
|
return $#stmt_lines + 2;
|
|
}
|
|
|
|
sub statement_block_size {
|
|
my ($stmt) = @_;
|
|
|
|
$stmt =~ s/(^|\n)./$1/g;
|
|
$stmt =~ s/^\s*\{//;
|
|
$stmt =~ s/}\s*$//;
|
|
$stmt =~ s/^\s*//;
|
|
$stmt =~ s/\s*$//;
|
|
|
|
my @stmt_lines = ($stmt =~ /\n/g);
|
|
my @stmt_statements = ($stmt =~ /;/g);
|
|
|
|
my $stmt_lines = $#stmt_lines + 2;
|
|
my $stmt_statements = $#stmt_statements + 1;
|
|
|
|
if ($stmt_lines > $stmt_statements) {
|
|
return $stmt_lines;
|
|
} else {
|
|
return $stmt_statements;
|
|
}
|
|
}
|
|
|
|
sub ctx_statement_full {
|
|
my ($linenr, $remain, $off) = @_;
|
|
my ($statement, $condition, $level);
|
|
|
|
my (@chunks);
|
|
|
|
# Grab the first conditional/block pair.
|
|
($statement, $condition, $linenr, $remain, $off, $level) =
|
|
ctx_statement_block($linenr, $remain, $off);
|
|
#print "F: c<$condition> s<$statement> remain<$remain>\n";
|
|
push(@chunks, [ $condition, $statement ]);
|
|
if (!($remain > 0 && $condition =~ /^\s*(?:\n[+-])?\s*(?:if|else|do)\b/s)) {
|
|
return ($level, $linenr, @chunks);
|
|
}
|
|
|
|
# Pull in the following conditional/block pairs and see if they
|
|
# could continue the statement.
|
|
for (;;) {
|
|
($statement, $condition, $linenr, $remain, $off, $level) =
|
|
ctx_statement_block($linenr, $remain, $off);
|
|
#print "C: c<$condition> s<$statement> remain<$remain>\n";
|
|
last if (!($remain > 0 && $condition =~ /^(?:\s*\n[+-])*\s*(?:else|do)\b/s));
|
|
#print "C: push\n";
|
|
push(@chunks, [ $condition, $statement ]);
|
|
}
|
|
|
|
return ($level, $linenr, @chunks);
|
|
}
|
|
|
|
sub ctx_block_get {
|
|
my ($linenr, $remain, $outer, $open, $close, $off) = @_;
|
|
my $line;
|
|
my $start = $linenr - 1;
|
|
my $blk = '';
|
|
my @o;
|
|
my @c;
|
|
my @res = ();
|
|
|
|
my $level = 0;
|
|
my @stack = ($level);
|
|
for ($line = $start; $remain > 0; $line++) {
|
|
next if ($rawlines[$line] =~ /^-/);
|
|
$remain--;
|
|
|
|
$blk .= $rawlines[$line];
|
|
|
|
# Handle nested #if/#else.
|
|
if ($lines[$line] =~ /^.\s*#\s*(?:ifndef|ifdef|if)\s/) {
|
|
push(@stack, $level);
|
|
} elsif ($lines[$line] =~ /^.\s*#\s*(?:else|elif)\b/) {
|
|
$level = $stack[$#stack - 1];
|
|
} elsif ($lines[$line] =~ /^.\s*#\s*endif\b/) {
|
|
$level = pop(@stack);
|
|
}
|
|
|
|
foreach my $c (split(//, $lines[$line])) {
|
|
##print "C<$c>L<$level><$open$close>O<$off>\n";
|
|
if ($off > 0) {
|
|
$off--;
|
|
next;
|
|
}
|
|
|
|
if ($c eq $close && $level > 0) {
|
|
$level--;
|
|
last if ($level == 0);
|
|
} elsif ($c eq $open) {
|
|
$level++;
|
|
}
|
|
}
|
|
|
|
if (!$outer || $level <= 1) {
|
|
push(@res, $rawlines[$line]);
|
|
}
|
|
|
|
last if ($level == 0);
|
|
}
|
|
|
|
return ($level, @res);
|
|
}
|
|
sub ctx_block_outer {
|
|
my ($linenr, $remain) = @_;
|
|
|
|
my ($level, @r) = ctx_block_get($linenr, $remain, 1, '{', '}', 0);
|
|
return @r;
|
|
}
|
|
sub ctx_block {
|
|
my ($linenr, $remain) = @_;
|
|
|
|
my ($level, @r) = ctx_block_get($linenr, $remain, 0, '{', '}', 0);
|
|
return @r;
|
|
}
|
|
sub ctx_statement {
|
|
my ($linenr, $remain, $off) = @_;
|
|
|
|
my ($level, @r) = ctx_block_get($linenr, $remain, 0, '(', ')', $off);
|
|
return @r;
|
|
}
|
|
sub ctx_block_level {
|
|
my ($linenr, $remain) = @_;
|
|
|
|
return ctx_block_get($linenr, $remain, 0, '{', '}', 0);
|
|
}
|
|
sub ctx_statement_level {
|
|
my ($linenr, $remain, $off) = @_;
|
|
|
|
return ctx_block_get($linenr, $remain, 0, '(', ')', $off);
|
|
}
|
|
|
|
sub ctx_locate_comment {
|
|
my ($first_line, $end_line) = @_;
|
|
|
|
# Catch a comment on the end of the line itself.
|
|
my ($current_comment) = ($rawlines[$end_line - 1] =~ m@.*(/\*.*\*/)\s*(?:\\\s*)?$@);
|
|
return $current_comment if (defined $current_comment);
|
|
|
|
# Look through the context and try and figure out if there is a
|
|
# comment.
|
|
my $in_comment = 0;
|
|
$current_comment = '';
|
|
for (my $linenr = $first_line; $linenr < $end_line; $linenr++) {
|
|
my $line = $rawlines[$linenr - 1];
|
|
#warn " $line\n";
|
|
if ($linenr == $first_line and $line =~ m@^.\s*\*@) {
|
|
$in_comment = 1;
|
|
}
|
|
if ($line =~ m@/\*@) {
|
|
$in_comment = 1;
|
|
}
|
|
if (!$in_comment && $current_comment ne '') {
|
|
$current_comment = '';
|
|
}
|
|
$current_comment .= $line . "\n" if ($in_comment);
|
|
if ($line =~ m@\*/@) {
|
|
$in_comment = 0;
|
|
}
|
|
}
|
|
|
|
chomp($current_comment);
|
|
return($current_comment);
|
|
}
|
|
sub ctx_has_comment {
|
|
my ($first_line, $end_line) = @_;
|
|
my $cmt = ctx_locate_comment($first_line, $end_line);
|
|
|
|
##print "LINE: $rawlines[$end_line - 1 ]\n";
|
|
##print "CMMT: $cmt\n";
|
|
|
|
return ($cmt ne '');
|
|
}
|
|
|
|
sub raw_line {
|
|
my ($linenr, $cnt) = @_;
|
|
|
|
my $offset = $linenr - 1;
|
|
$cnt++;
|
|
|
|
my $line;
|
|
while ($cnt) {
|
|
$line = $rawlines[$offset++];
|
|
next if (defined($line) && $line =~ /^-/);
|
|
$cnt--;
|
|
}
|
|
|
|
return $line;
|
|
}
|
|
|
|
sub cat_vet {
|
|
my ($vet) = @_;
|
|
my ($res, $coded);
|
|
|
|
$res = '';
|
|
while ($vet =~ /([^[:cntrl:]]*)([[:cntrl:]]|$)/g) {
|
|
$res .= $1;
|
|
if ($2 ne '') {
|
|
$coded = sprintf("^%c", unpack('C', $2) + 64);
|
|
$res .= $coded;
|
|
}
|
|
}
|
|
$res =~ s/$/\$/;
|
|
|
|
return $res;
|
|
}
|
|
|
|
my $av_preprocessor = 0;
|
|
my $av_pending;
|
|
my @av_paren_type;
|
|
my $av_pend_colon;
|
|
|
|
sub annotate_reset {
|
|
$av_preprocessor = 0;
|
|
$av_pending = '_';
|
|
@av_paren_type = ('E');
|
|
$av_pend_colon = 'O';
|
|
}
|
|
|
|
sub annotate_values {
|
|
my ($stream, $type) = @_;
|
|
|
|
my $res;
|
|
my $var = '_' x length($stream);
|
|
my $cur = $stream;
|
|
|
|
print "$stream\n" if ($dbg_values > 1);
|
|
|
|
while (length($cur)) {
|
|
@av_paren_type = ('E') if ($#av_paren_type < 0);
|
|
print " <" . join('', @av_paren_type) .
|
|
"> <$type> <$av_pending>" if ($dbg_values > 1);
|
|
if ($cur =~ /^(\s+)/o) {
|
|
print "WS($1)\n" if ($dbg_values > 1);
|
|
if ($1 =~ /\n/ && $av_preprocessor) {
|
|
$type = pop(@av_paren_type);
|
|
$av_preprocessor = 0;
|
|
}
|
|
|
|
} elsif ($cur =~ /^(\(\s*$Type\s*)\)/ && $av_pending eq '_') {
|
|
print "CAST($1)\n" if ($dbg_values > 1);
|
|
push(@av_paren_type, $type);
|
|
$type = 'C';
|
|
|
|
} elsif ($cur =~ /^($Type)\s*(?:$Ident|,|\)|\(|\s*$)/) {
|
|
print "DECLARE($1)\n" if ($dbg_values > 1);
|
|
$type = 'T';
|
|
|
|
} elsif ($cur =~ /^($Modifier)\s*/) {
|
|
print "MODIFIER($1)\n" if ($dbg_values > 1);
|
|
$type = 'T';
|
|
|
|
} elsif ($cur =~ /^(\#\s*define\s*$Ident)(\(?)/o) {
|
|
print "DEFINE($1,$2)\n" if ($dbg_values > 1);
|
|
$av_preprocessor = 1;
|
|
push(@av_paren_type, $type);
|
|
if ($2 ne '') {
|
|
$av_pending = 'N';
|
|
}
|
|
$type = 'E';
|
|
|
|
} elsif ($cur =~ /^(\#\s*(?:undef\s*$Ident|include\b))/o) {
|
|
print "UNDEF($1)\n" if ($dbg_values > 1);
|
|
$av_preprocessor = 1;
|
|
push(@av_paren_type, $type);
|
|
|
|
} elsif ($cur =~ /^(\#\s*(?:ifdef|ifndef|if))/o) {
|
|
print "PRE_START($1)\n" if ($dbg_values > 1);
|
|
$av_preprocessor = 1;
|
|
|
|
push(@av_paren_type, $type);
|
|
push(@av_paren_type, $type);
|
|
$type = 'E';
|
|
|
|
} elsif ($cur =~ /^(\#\s*(?:else|elif))/o) {
|
|
print "PRE_RESTART($1)\n" if ($dbg_values > 1);
|
|
$av_preprocessor = 1;
|
|
|
|
push(@av_paren_type, $av_paren_type[$#av_paren_type]);
|
|
|
|
$type = 'E';
|
|
|
|
} elsif ($cur =~ /^(\#\s*(?:endif))/o) {
|
|
print "PRE_END($1)\n" if ($dbg_values > 1);
|
|
|
|
$av_preprocessor = 1;
|
|
|
|
# Assume all arms of the conditional end as this
|
|
# one does, and continue as if the #endif was not here.
|
|
pop(@av_paren_type);
|
|
push(@av_paren_type, $type);
|
|
$type = 'E';
|
|
|
|
} elsif ($cur =~ /^(\\\n)/o) {
|
|
print "PRECONT($1)\n" if ($dbg_values > 1);
|
|
|
|
} elsif ($cur =~ /^(__attribute__)\s*\(?/o) {
|
|
print "ATTR($1)\n" if ($dbg_values > 1);
|
|
$av_pending = $type;
|
|
$type = 'N';
|
|
|
|
} elsif ($cur =~ /^(sizeof)\s*(\()?/o) {
|
|
print "SIZEOF($1)\n" if ($dbg_values > 1);
|
|
if (defined $2) {
|
|
$av_pending = 'V';
|
|
}
|
|
$type = 'N';
|
|
|
|
} elsif ($cur =~ /^(if|while|for)\b/o) {
|
|
print "COND($1)\n" if ($dbg_values > 1);
|
|
$av_pending = 'E';
|
|
$type = 'N';
|
|
|
|
} elsif ($cur =~/^(case)/o) {
|
|
print "CASE($1)\n" if ($dbg_values > 1);
|
|
$av_pend_colon = 'C';
|
|
$type = 'N';
|
|
|
|
} elsif ($cur =~/^(return|else|goto|typeof|__typeof__)\b/o) {
|
|
print "KEYWORD($1)\n" if ($dbg_values > 1);
|
|
$type = 'N';
|
|
|
|
} elsif ($cur =~ /^(\()/o) {
|
|
print "PAREN('$1')\n" if ($dbg_values > 1);
|
|
push(@av_paren_type, $av_pending);
|
|
$av_pending = '_';
|
|
$type = 'N';
|
|
|
|
} elsif ($cur =~ /^(\))/o) {
|
|
my $new_type = pop(@av_paren_type);
|
|
if ($new_type ne '_') {
|
|
$type = $new_type;
|
|
print "PAREN('$1') -> $type\n"
|
|
if ($dbg_values > 1);
|
|
} else {
|
|
print "PAREN('$1')\n" if ($dbg_values > 1);
|
|
}
|
|
|
|
} elsif ($cur =~ /^($Ident)\s*\(/o) {
|
|
print "FUNC($1)\n" if ($dbg_values > 1);
|
|
$type = 'V';
|
|
$av_pending = 'V';
|
|
|
|
} elsif ($cur =~ /^($Ident\s*):(?:\s*\d+\s*(,|=|;))?/) {
|
|
if (defined $2 && $type eq 'C' || $type eq 'T') {
|
|
$av_pend_colon = 'B';
|
|
} elsif ($type eq 'E') {
|
|
$av_pend_colon = 'L';
|
|
}
|
|
print "IDENT_COLON($1,$type>$av_pend_colon)\n" if ($dbg_values > 1);
|
|
$type = 'V';
|
|
|
|
} elsif ($cur =~ /^($Ident|$Constant)/o) {
|
|
print "IDENT($1)\n" if ($dbg_values > 1);
|
|
$type = 'V';
|
|
|
|
} elsif ($cur =~ /^($Assignment)/o) {
|
|
print "ASSIGN($1)\n" if ($dbg_values > 1);
|
|
$type = 'N';
|
|
|
|
} elsif ($cur =~/^(;|{|})/) {
|
|
print "END($1)\n" if ($dbg_values > 1);
|
|
$type = 'E';
|
|
$av_pend_colon = 'O';
|
|
|
|
} elsif ($cur =~/^(,)/) {
|
|
print "COMMA($1)\n" if ($dbg_values > 1);
|
|
$type = 'C';
|
|
|
|
} elsif ($cur =~ /^(\?)/o) {
|
|
print "QUESTION($1)\n" if ($dbg_values > 1);
|
|
$type = 'N';
|
|
|
|
} elsif ($cur =~ /^(:)/o) {
|
|
print "COLON($1,$av_pend_colon)\n" if ($dbg_values > 1);
|
|
|
|
substr($var, length($res), 1, $av_pend_colon);
|
|
if ($av_pend_colon eq 'C' || $av_pend_colon eq 'L') {
|
|
$type = 'E';
|
|
} else {
|
|
$type = 'N';
|
|
}
|
|
$av_pend_colon = 'O';
|
|
|
|
} elsif ($cur =~ /^(\[)/o) {
|
|
print "CLOSE($1)\n" if ($dbg_values > 1);
|
|
$type = 'N';
|
|
|
|
} elsif ($cur =~ /^(-(?![->])|\+(?!\+)|\*|\&\&|\&)/o) {
|
|
my $variant;
|
|
|
|
print "OPV($1)\n" if ($dbg_values > 1);
|
|
if ($type eq 'V') {
|
|
$variant = 'B';
|
|
} else {
|
|
$variant = 'U';
|
|
}
|
|
|
|
substr($var, length($res), 1, $variant);
|
|
$type = 'N';
|
|
|
|
} elsif ($cur =~ /^($Operators)/o) {
|
|
print "OP($1)\n" if ($dbg_values > 1);
|
|
if ($1 ne '++' && $1 ne '--') {
|
|
$type = 'N';
|
|
}
|
|
|
|
} elsif ($cur =~ /(^.)/o) {
|
|
print "C($1)\n" if ($dbg_values > 1);
|
|
}
|
|
if (defined $1) {
|
|
$cur = substr($cur, length($1));
|
|
$res .= $type x length($1);
|
|
}
|
|
}
|
|
|
|
return ($res, $var);
|
|
}
|
|
|
|
sub possible {
|
|
my ($possible, $line) = @_;
|
|
my $notPermitted = qr{(?:
|
|
^(?:
|
|
$Modifier|
|
|
$Storage|
|
|
$Type|
|
|
DEFINE_\S+
|
|
)$|
|
|
^(?:
|
|
goto|
|
|
return|
|
|
case|
|
|
else|
|
|
asm|__asm__|
|
|
do
|
|
)(?:\s|$)|
|
|
^(?:typedef|struct|enum)\b|
|
|
^\#
|
|
)}x;
|
|
warn "CHECK<$possible> ($line)\n" if ($dbg_possible > 2);
|
|
if ($possible !~ $notPermitted) {
|
|
# Check for modifiers.
|
|
$possible =~ s/\s*$Storage\s*//g;
|
|
$possible =~ s/\s*$Sparse\s*//g;
|
|
if ($possible =~ /^\s*$/) {
|
|
|
|
} elsif ($possible =~ /\s/) {
|
|
$possible =~ s/\s*(?:$Type|\#\#)\s*//g;
|
|
for my $modifier (split(' ', $possible)) {
|
|
if ($modifier !~ $notPermitted) {
|
|
warn "MODIFIER: $modifier ($possible) ($line)\n" if ($dbg_possible);
|
|
push(@modifierList, $modifier);
|
|
}
|
|
}
|
|
|
|
} else {
|
|
warn "POSSIBLE: $possible ($line)\n" if ($dbg_possible);
|
|
push(@typeList, $possible);
|
|
}
|
|
build_types();
|
|
} else {
|
|
warn "NOTPOSS: $possible ($line)\n" if ($dbg_possible > 1);
|
|
}
|
|
}
|
|
|
|
my $prefix = '';
|
|
|
|
sub report {
|
|
my ($level, $msg) = @_;
|
|
if (defined $tst_only && $msg !~ /\Q$tst_only\E/) {
|
|
return 0;
|
|
}
|
|
|
|
my $output = '';
|
|
$output .= BOLD if $color;
|
|
$output .= $prefix;
|
|
$output .= RED if $color && $level eq 'ERROR';
|
|
$output .= MAGENTA if $color && $level eq 'WARNING';
|
|
$output .= $level . ':';
|
|
$output .= RESET if $color;
|
|
$output .= ' ' . $msg . "\n";
|
|
|
|
$output = (split('\n', $output))[0] . "\n" if ($terse);
|
|
|
|
push(our @report, $output);
|
|
|
|
return 1;
|
|
}
|
|
sub report_dump {
|
|
our @report;
|
|
}
|
|
sub ERROR {
|
|
if (report("ERROR", $_[0])) {
|
|
our $clean = 0;
|
|
our $cnt_error++;
|
|
}
|
|
}
|
|
sub WARN {
|
|
if (report("WARNING", $_[0])) {
|
|
our $clean = 0;
|
|
our $cnt_warn++;
|
|
}
|
|
}
|
|
|
|
# According to tests/qtest/bios-tables-test.c: do not
|
|
# change expected file in the same commit with adding test
|
|
sub checkfilename {
|
|
my ($name, $acpi_testexpected, $acpi_nontestexpected) = @_;
|
|
|
|
# Note: shell script that rebuilds the expected files is in the same
|
|
# directory as files themselves.
|
|
# Note: allowed diff list can be changed both when changing expected
|
|
# files and when changing tests.
|
|
if ($name =~ m#^tests/data/acpi/# and not $name =~ m#^\.sh$#) {
|
|
$$acpi_testexpected = $name;
|
|
} elsif ($name !~ m#^tests/qtest/bios-tables-test-allowed-diff.h$#) {
|
|
$$acpi_nontestexpected = $name;
|
|
}
|
|
if (defined $$acpi_testexpected and defined $$acpi_nontestexpected) {
|
|
ERROR("Do not add expected files together with tests, " .
|
|
"follow instructions in " .
|
|
"tests/qtest/bios-tables-test.c: both " .
|
|
$$acpi_testexpected . " and " .
|
|
$$acpi_nontestexpected . " found\n");
|
|
}
|
|
}
|
|
|
|
sub process {
|
|
my $filename = shift;
|
|
|
|
my $linenr=0;
|
|
my $prevline="";
|
|
my $prevrawline="";
|
|
my $stashline="";
|
|
my $stashrawline="";
|
|
|
|
my $length;
|
|
my $indent;
|
|
my $previndent=0;
|
|
my $stashindent=0;
|
|
|
|
our $clean = 1;
|
|
my $signoff = 0;
|
|
my $is_patch = 0;
|
|
|
|
my $in_header_lines = $file ? 0 : 1;
|
|
my $in_commit_log = 0; #Scanning lines before patch
|
|
my $non_utf8_charset = 0;
|
|
|
|
our @report = ();
|
|
our $cnt_lines = 0;
|
|
our $cnt_error = 0;
|
|
our $cnt_warn = 0;
|
|
our $cnt_chk = 0;
|
|
|
|
# Trace the real file/line as we go.
|
|
my $realfile = '';
|
|
my $realline = 0;
|
|
my $realcnt = 0;
|
|
my $here = '';
|
|
my $in_comment = 0;
|
|
my $comment_edge = 0;
|
|
my $first_line = 0;
|
|
my $p1_prefix = '';
|
|
|
|
my $prev_values = 'E';
|
|
|
|
# suppression flags
|
|
my %suppress_ifbraces;
|
|
my %suppress_whiletrailers;
|
|
my %suppress_export;
|
|
|
|
my $acpi_testexpected;
|
|
my $acpi_nontestexpected;
|
|
|
|
# Pre-scan the patch sanitizing the lines.
|
|
|
|
sanitise_line_reset();
|
|
my $line;
|
|
foreach my $rawline (@rawlines) {
|
|
$linenr++;
|
|
$line = $rawline;
|
|
|
|
if ($rawline=~/^\@\@ -\d+(?:,\d+)? \+(\d+)(,(\d+))? \@\@/) {
|
|
$realline=$1-1;
|
|
if (defined $2) {
|
|
$realcnt=$3+1;
|
|
} else {
|
|
$realcnt=1+1;
|
|
}
|
|
$in_comment = 0;
|
|
|
|
# Guestimate if this is a continuing comment. Run
|
|
# the context looking for a comment "edge". If this
|
|
# edge is a close comment then we must be in a comment
|
|
# at context start.
|
|
my $edge;
|
|
my $cnt = $realcnt;
|
|
for (my $ln = $linenr + 1; $cnt > 0; $ln++) {
|
|
next if (defined $rawlines[$ln - 1] &&
|
|
$rawlines[$ln - 1] =~ /^-/);
|
|
$cnt--;
|
|
#print "RAW<$rawlines[$ln - 1]>\n";
|
|
last if (!defined $rawlines[$ln - 1]);
|
|
if ($rawlines[$ln - 1] =~ m@(/\*|\*/)@ &&
|
|
$rawlines[$ln - 1] !~ m@"[^"]*(?:/\*|\*/)[^"]*"@) {
|
|
($edge) = $1;
|
|
last;
|
|
}
|
|
}
|
|
if (defined $edge && $edge eq '*/') {
|
|
$in_comment = 1;
|
|
}
|
|
|
|
# Guestimate if this is a continuing comment. If this
|
|
# is the start of a diff block and this line starts
|
|
# ' *' then it is very likely a comment.
|
|
if (!defined $edge &&
|
|
$rawlines[$linenr] =~ m@^.\s*(?:\*\*+| \*)(?:\s|$)@)
|
|
{
|
|
$in_comment = 1;
|
|
}
|
|
|
|
##print "COMMENT:$in_comment edge<$edge> $rawline\n";
|
|
sanitise_line_reset($in_comment);
|
|
|
|
} elsif ($realcnt && $rawline =~ /^(?:\+| |$)/) {
|
|
# Standardise the strings and chars within the input to
|
|
# simplify matching -- only bother with positive lines.
|
|
$line = sanitise_line($rawline);
|
|
}
|
|
push(@lines, $line);
|
|
|
|
if ($realcnt > 1) {
|
|
$realcnt-- if ($line =~ /^(?:\+| |$)/);
|
|
} else {
|
|
$realcnt = 0;
|
|
}
|
|
|
|
#print "==>$rawline\n";
|
|
#print "-->$line\n";
|
|
}
|
|
|
|
$prefix = '';
|
|
|
|
$realcnt = 0;
|
|
$linenr = 0;
|
|
foreach my $line (@lines) {
|
|
$linenr++;
|
|
|
|
my $rawline = $rawlines[$linenr - 1];
|
|
|
|
#extract the line range in the file after the patch is applied
|
|
if ($line=~/^\@\@ -\d+(?:,\d+)? \+(\d+)(,(\d+))? \@\@/) {
|
|
$is_patch = 1;
|
|
$first_line = $linenr + 1;
|
|
$realline=$1-1;
|
|
if (defined $2) {
|
|
$realcnt=$3+1;
|
|
} else {
|
|
$realcnt=1+1;
|
|
}
|
|
annotate_reset();
|
|
$prev_values = 'E';
|
|
|
|
%suppress_ifbraces = ();
|
|
%suppress_whiletrailers = ();
|
|
%suppress_export = ();
|
|
next;
|
|
|
|
# track the line number as we move through the hunk, note that
|
|
# new versions of GNU diff omit the leading space on completely
|
|
# blank context lines so we need to count that too.
|
|
} elsif ($line =~ /^( |\+|$)/) {
|
|
$realline++;
|
|
$realcnt-- if ($realcnt != 0);
|
|
|
|
# Measure the line length and indent.
|
|
($length, $indent) = line_stats($rawline);
|
|
|
|
# Track the previous line.
|
|
($prevline, $stashline) = ($stashline, $line);
|
|
($previndent, $stashindent) = ($stashindent, $indent);
|
|
($prevrawline, $stashrawline) = ($stashrawline, $rawline);
|
|
|
|
#warn "line<$line>\n";
|
|
|
|
} elsif ($realcnt == 1) {
|
|
$realcnt--;
|
|
}
|
|
|
|
my $hunk_line = ($realcnt != 0);
|
|
|
|
#make up the handle for any error we report on this line
|
|
$prefix = "$filename:$realline: " if ($emacs && $file);
|
|
$prefix = "$filename:$linenr: " if ($emacs && !$file);
|
|
|
|
$here = "#$linenr: " if (!$file);
|
|
$here = "#$realline: " if ($file);
|
|
|
|
# extract the filename as it passes
|
|
if ($line =~ /^diff --git.*?(\S+)$/) {
|
|
$realfile = $1;
|
|
$realfile =~ s@^([^/]*)/@@ if (!$file);
|
|
checkfilename($realfile, \$acpi_testexpected, \$acpi_nontestexpected);
|
|
} elsif ($line =~ /^\+\+\+\s+(\S+)/) {
|
|
$realfile = $1;
|
|
$realfile =~ s@^([^/]*)/@@ if (!$file);
|
|
checkfilename($realfile, \$acpi_testexpected, \$acpi_nontestexpected);
|
|
|
|
$p1_prefix = $1;
|
|
if (!$file && $tree && $p1_prefix ne '' &&
|
|
-e "$root/$p1_prefix") {
|
|
WARN("patch prefix '$p1_prefix' exists, appears to be a -p0 patch\n");
|
|
}
|
|
|
|
next;
|
|
}
|
|
|
|
$here .= "FILE: $realfile:$realline:" if ($realcnt != 0);
|
|
|
|
my $hereline = "$here\n$rawline\n";
|
|
my $herecurr = "$here\n$rawline\n";
|
|
my $hereprev = "$here\n$prevrawline\n$rawline\n";
|
|
|
|
$cnt_lines++ if ($realcnt != 0);
|
|
|
|
# Check for incorrect file permissions
|
|
if ($line =~ /^new (file )?mode.*[7531]\d{0,2}$/) {
|
|
my $permhere = $here . "FILE: $realfile\n";
|
|
if ($realfile =~ /(\bMakefile(?:\.objs)?|\.c|\.cc|\.cpp|\.h|\.mak|\.[sS])$/) {
|
|
ERROR("do not set execute permissions for source files\n" . $permhere);
|
|
}
|
|
}
|
|
|
|
# Only allow Python 3 interpreter
|
|
if ($realline == 1 &&
|
|
$line =~ /^\+#!\ *\/usr\/bin\/(?:env )?python$/) {
|
|
ERROR("please use python3 interpreter\n" . $herecurr);
|
|
}
|
|
|
|
# Accept git diff extended headers as valid patches
|
|
if ($line =~ /^(?:rename|copy) (?:from|to) [\w\/\.\-]+\s*$/) {
|
|
$is_patch = 1;
|
|
}
|
|
|
|
if ($line =~ /^(Author|From): .* via .*<qemu-devel\@nongnu.org>/) {
|
|
ERROR("Author email address is mangled by the mailing list\n" . $herecurr);
|
|
}
|
|
|
|
#check the patch for a signoff:
|
|
if ($line =~ /^\s*signed-off-by:/i) {
|
|
# This is a signoff, if ugly, so do not double report.
|
|
$in_commit_log = 0;
|
|
|
|
if (!($line =~ /^\s*Signed-off-by:/)) {
|
|
ERROR("The correct form is \"Signed-off-by\"\n" .
|
|
$herecurr);
|
|
}
|
|
if ($line =~ /^\s*signed-off-by:\S/i) {
|
|
ERROR("space required after Signed-off-by:\n" .
|
|
$herecurr);
|
|
}
|
|
}
|
|
|
|
# Check for wrappage within a valid hunk of the file
|
|
if ($realcnt != 0 && $line !~ m{^(?:\+|-| |\\ No newline|$)}) {
|
|
ERROR("patch seems to be corrupt (line wrapped?)\n" .
|
|
$herecurr) if (!$emitted_corrupt++);
|
|
}
|
|
|
|
# UTF-8 regex found at http://www.w3.org/International/questions/qa-forms-utf-8.en.php
|
|
if (($realfile =~ /^$/ || $line =~ /^\+/) &&
|
|
$rawline !~ m/^$UTF8*$/) {
|
|
my ($utf8_prefix) = ($rawline =~ /^($UTF8*)/);
|
|
|
|
my $blank = copy_spacing($rawline);
|
|
my $ptr = substr($blank, 0, length($utf8_prefix)) . "^";
|
|
my $hereptr = "$hereline$ptr\n";
|
|
|
|
ERROR("Invalid UTF-8, patch and commit message should be encoded in UTF-8\n" . $hereptr);
|
|
}
|
|
|
|
if ($rawline =~ m/$UTF8_MOJIBAKE/) {
|
|
ERROR("Doubly-encoded UTF-8\n" . $herecurr);
|
|
}
|
|
# Check if it's the start of a commit log
|
|
# (not a header line and we haven't seen the patch filename)
|
|
if ($in_header_lines && $realfile =~ /^$/ &&
|
|
!($rawline =~ /^\s+\S/ ||
|
|
$rawline =~ /^(commit\b|from\b|[\w-]+:).*$/i)) {
|
|
$in_header_lines = 0;
|
|
$in_commit_log = 1;
|
|
}
|
|
|
|
# Check if there is UTF-8 in a commit log when a mail header has explicitly
|
|
# declined it, i.e defined some charset where it is missing.
|
|
if ($in_header_lines &&
|
|
$rawline =~ /^Content-Type:.+charset="(.+)".*$/ &&
|
|
$1 !~ /utf-8/i) {
|
|
$non_utf8_charset = 1;
|
|
}
|
|
|
|
if ($in_commit_log && $non_utf8_charset && $realfile =~ /^$/ &&
|
|
$rawline =~ /$NON_ASCII_UTF8/) {
|
|
WARN("8-bit UTF-8 used in possible commit log\n" . $herecurr);
|
|
}
|
|
|
|
# ignore non-hunk lines and lines being removed
|
|
next if (!$hunk_line || $line =~ /^-/);
|
|
|
|
# ignore files that are being periodically imported from Linux
|
|
next if ($realfile =~ /^(linux-headers|include\/standard-headers)\//);
|
|
|
|
#trailing whitespace
|
|
if ($line =~ /^\+.*\015/) {
|
|
my $herevet = "$here\n" . cat_vet($rawline) . "\n";
|
|
ERROR("DOS line endings\n" . $herevet);
|
|
|
|
} elsif ($realfile =~ /^docs\/.+\.txt/ ||
|
|
$realfile =~ /^docs\/.+\.md/) {
|
|
if ($rawline =~ /^\+\s+$/ && $rawline !~ /^\+ {4}$/) {
|
|
# TODO: properly check we're in a code block
|
|
# (surrounding text is 4-column aligned)
|
|
my $herevet = "$here\n" . cat_vet($rawline) . "\n";
|
|
ERROR("code blocks in documentation should have " .
|
|
"empty lines with exactly 4 columns of " .
|
|
"whitespace\n" . $herevet);
|
|
}
|
|
} elsif ($rawline =~ /^\+.*\S\s+$/ || $rawline =~ /^\+\s+$/) {
|
|
my $herevet = "$here\n" . cat_vet($rawline) . "\n";
|
|
ERROR("trailing whitespace\n" . $herevet);
|
|
$rpt_cleaners = 1;
|
|
}
|
|
|
|
# checks for trace-events files
|
|
if ($realfile =~ /trace-events$/ && $line =~ /^\+/) {
|
|
if ($rawline =~ /%[-+ 0]*#/) {
|
|
ERROR("Don't use '#' flag of printf format ('%#') in " .
|
|
"trace-events, use '0x' prefix instead\n" . $herecurr);
|
|
} else {
|
|
my $hex =
|
|
qr/%[-+ *.0-9]*([hljztL]|ll|hh)?(x|X|"\s*PRI[xX][^"]*"?)/;
|
|
|
|
# don't consider groups splitted by [.:/ ], like 2A.20:12ab
|
|
my $tmpline = $rawline;
|
|
$tmpline =~ s/($hex[.:\/ ])+$hex//g;
|
|
|
|
if ($tmpline =~ /(?<!0x)$hex/) {
|
|
ERROR("Hex numbers must be prefixed with '0x'\n" .
|
|
$herecurr);
|
|
}
|
|
}
|
|
}
|
|
|
|
# check we are in a valid source file if not then ignore this hunk
|
|
next if ($realfile !~ /$SrcFile/);
|
|
|
|
#120 column limit; exempt URLs, if no other words on line
|
|
if ($line =~ /^\+/ &&
|
|
!($line =~ /^\+\s*"[^"]*"\s*(?:\s*|,|\)\s*;)\s*$/) &&
|
|
!($rawline =~ /^[^[:alnum:]]*https?:\S*$/) &&
|
|
$length > 80 &&
|
|
$realfile !~ /\/tests\//)
|
|
{
|
|
if ($length > 120) {
|
|
ERROR("line over 120 characters\n" . $herecurr);
|
|
} else {
|
|
WARN("line over 80 characters\n" . $herecurr);
|
|
}
|
|
}
|
|
|
|
# check for spaces before a quoted newline
|
|
if ($rawline =~ /^.*\".*\s\\n/) {
|
|
ERROR("unnecessary whitespace before a quoted newline\n" . $herecurr);
|
|
}
|
|
|
|
# check for adding lines without a newline.
|
|
if ($line =~ /^\+/ && defined $lines[$linenr] && $lines[$linenr] =~ /^\\ No newline at end of file/) {
|
|
ERROR("adding a line without newline at end of file\n" . $herecurr);
|
|
}
|
|
|
|
# check for RCS/CVS revision markers
|
|
if ($rawline =~ /^\+.*\$(Revision|Log|Id)(?:\$|\b)/) {
|
|
ERROR("CVS style keyword markers, these will _not_ be updated\n". $herecurr);
|
|
}
|
|
|
|
# check we are in a valid C source file if not then ignore this hunk
|
|
next if ($realfile !~ /\.(h|c|cpp)$/);
|
|
|
|
# Block comment styles
|
|
|
|
# Block comments use /* on a line of its own
|
|
if ($rawline !~ m@^\+.*/\*.*\*/[ \t)}]*$@ && #inline /*...*/
|
|
$rawline =~ m@^\+.*/\*[*-]?+[ \t]*[^ \t]@) { # /* or /** or /*- non-blank
|
|
WARN("Block comments use a leading /* on a separate line\n" . $herecurr);
|
|
}
|
|
|
|
# Block comments use * on subsequent lines
|
|
if ($prevline =~ /$;[ \t]*$/ && #ends in comment
|
|
$prevrawline =~ /^\+.*?\/\*/ && #starting /*
|
|
$prevrawline !~ /\*\/[ \t]*$/ && #no trailing */
|
|
$rawline =~ /^\+/ && #line is new
|
|
$rawline !~ /^\+[ \t]*\*/) { #no leading *
|
|
WARN("Block comments use * on subsequent lines\n" . $hereprev);
|
|
}
|
|
|
|
# Block comments use */ on trailing lines
|
|
if ($rawline !~ m@^\+[ \t]*\*/[ \t]*$@ && #trailing */
|
|
$rawline !~ m@^\+.*/\*.*\*/[ \t]*$@ && #inline /*...*/
|
|
$rawline !~ m@^\+.*\*{2,}/[ \t]*$@ && #trailing **/
|
|
$rawline =~ m@^\+[ \t]*.+\*\/[ \t]*$@) { #non blank */
|
|
WARN("Block comments use a trailing */ on a separate line\n" . $herecurr);
|
|
}
|
|
|
|
# Block comment * alignment
|
|
if ($prevline =~ /$;[ \t]*$/ && #ends in comment
|
|
$line =~ /^\+[ \t]*$;/ && #leading comment
|
|
$rawline =~ /^\+[ \t]*\*/ && #leading *
|
|
(($prevrawline =~ /^\+.*?\/\*/ && #leading /*
|
|
$prevrawline !~ /\*\/[ \t]*$/) || #no trailing */
|
|
$prevrawline =~ /^\+[ \t]*\*/)) { #leading *
|
|
my $oldindent;
|
|
$prevrawline =~ m@^\+([ \t]*/?)\*@;
|
|
if (defined($1)) {
|
|
$oldindent = expand_tabs($1);
|
|
} else {
|
|
$prevrawline =~ m@^\+(.*/?)\*@;
|
|
$oldindent = expand_tabs($1);
|
|
}
|
|
$rawline =~ m@^\+([ \t]*)\*@;
|
|
my $newindent = $1;
|
|
$newindent = expand_tabs($newindent);
|
|
if (length($oldindent) ne length($newindent)) {
|
|
WARN("Block comments should align the * on each line\n" . $hereprev);
|
|
}
|
|
}
|
|
|
|
# Check for potential 'bare' types
|
|
my ($stat, $cond, $line_nr_next, $remain_next, $off_next,
|
|
$realline_next);
|
|
if ($realcnt && $line =~ /.\s*\S/) {
|
|
($stat, $cond, $line_nr_next, $remain_next, $off_next) =
|
|
ctx_statement_block($linenr, $realcnt, 0);
|
|
$stat =~ s/\n./\n /g;
|
|
$cond =~ s/\n./\n /g;
|
|
|
|
# Find the real next line.
|
|
$realline_next = $line_nr_next;
|
|
if (defined $realline_next &&
|
|
(!defined $lines[$realline_next - 1] ||
|
|
substr($lines[$realline_next - 1], $off_next) =~ /^\s*$/)) {
|
|
$realline_next++;
|
|
}
|
|
|
|
my $s = $stat;
|
|
$s =~ s/{.*$//s;
|
|
|
|
# Ignore goto labels.
|
|
if ($s =~ /$Ident:\*$/s) {
|
|
|
|
# Ignore functions being called
|
|
} elsif ($s =~ /^.\s*$Ident\s*\(/s) {
|
|
|
|
} elsif ($s =~ /^.\s*else\b/s) {
|
|
|
|
# declarations always start with types
|
|
} elsif ($prev_values eq 'E' && $s =~ /^.\s*(?:$Storage\s+)?(?:$Inline\s+)?(?:const\s+)?((?:\s*$Ident)+?)\b(?:\s+$Sparse)?\s*\**\s*(?:$Ident|\(\*[^\)]*\))(?:\s*$Modifier)?\s*(?:;|=|,|\()/s) {
|
|
my $type = $1;
|
|
$type =~ s/\s+/ /g;
|
|
possible($type, "A:" . $s);
|
|
|
|
# definitions in global scope can only start with types
|
|
} elsif ($s =~ /^.(?:$Storage\s+)?(?:$Inline\s+)?(?:const\s+)?($Ident)\b\s*(?!:)/s) {
|
|
possible($1, "B:" . $s);
|
|
}
|
|
|
|
# any (foo ... *) is a pointer cast, and foo is a type
|
|
while ($s =~ /\(($Ident)(?:\s+$Sparse)*[\s\*]+\s*\)/sg) {
|
|
possible($1, "C:" . $s);
|
|
}
|
|
|
|
# Check for any sort of function declaration.
|
|
# int foo(something bar, other baz);
|
|
# void (*store_gdt)(x86_descr_ptr *);
|
|
if ($prev_values eq 'E' && $s =~ /^(.(?:typedef\s*)?(?:(?:$Storage|$Inline)\s*)*\s*$Type\s*(?:\b$Ident|\(\*\s*$Ident\))\s*)\(/s) {
|
|
my ($name_len) = length($1);
|
|
|
|
my $ctx = $s;
|
|
substr($ctx, 0, $name_len + 1, '');
|
|
$ctx =~ s/\)[^\)]*$//;
|
|
|
|
for my $arg (split(/\s*,\s*/, $ctx)) {
|
|
if ($arg =~ /^(?:const\s+)?($Ident)(?:\s+$Sparse)*\s*\**\s*(:?\b$Ident)?$/s || $arg =~ /^($Ident)$/s) {
|
|
|
|
possible($1, "D:" . $s);
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
#
|
|
# Checks which may be anchored in the context.
|
|
#
|
|
|
|
# Check for switch () and associated case and default
|
|
# statements should be at the same indent.
|
|
if ($line=~/\bswitch\s*\(.*\)/) {
|
|
my $err = '';
|
|
my $sep = '';
|
|
my @ctx = ctx_block_outer($linenr, $realcnt);
|
|
shift(@ctx);
|
|
for my $ctx (@ctx) {
|
|
my ($clen, $cindent) = line_stats($ctx);
|
|
if ($ctx =~ /^\+\s*(case\s+|default:)/ &&
|
|
$indent != $cindent) {
|
|
$err .= "$sep$ctx\n";
|
|
$sep = '';
|
|
} else {
|
|
$sep = "[...]\n";
|
|
}
|
|
}
|
|
if ($err ne '') {
|
|
ERROR("switch and case should be at the same indent\n$hereline$err");
|
|
}
|
|
}
|
|
|
|
# if/while/etc brace do not go on next line, unless defining a do while loop,
|
|
# or if that brace on the next line is for something else
|
|
if ($line =~ /(.*)\b((?:if|while|for|switch)\s*\(|do\b|else\b)/ && $line !~ /^.\s*\#/) {
|
|
my $pre_ctx = "$1$2";
|
|
|
|
my ($level, @ctx) = ctx_statement_level($linenr, $realcnt, 0);
|
|
my $ctx_cnt = $realcnt - $#ctx - 1;
|
|
my $ctx = join("\n", @ctx);
|
|
|
|
my $ctx_ln = $linenr;
|
|
my $ctx_skip = $realcnt;
|
|
|
|
while ($ctx_skip > $ctx_cnt || ($ctx_skip == $ctx_cnt &&
|
|
defined $lines[$ctx_ln - 1] &&
|
|
$lines[$ctx_ln - 1] =~ /^-/)) {
|
|
##print "SKIP<$ctx_skip> CNT<$ctx_cnt>\n";
|
|
$ctx_skip-- if (!defined $lines[$ctx_ln - 1] || $lines[$ctx_ln - 1] !~ /^-/);
|
|
$ctx_ln++;
|
|
}
|
|
|
|
#print "realcnt<$realcnt> ctx_cnt<$ctx_cnt>\n";
|
|
#print "pre<$pre_ctx>\nline<$line>\nctx<$ctx>\nnext<$lines[$ctx_ln - 1]>\n";
|
|
|
|
# The length of the "previous line" is checked against 80 because it
|
|
# includes the + at the beginning of the line (if the actual line has
|
|
# 79 or 80 characters, it is no longer possible to add a space and an
|
|
# opening brace there)
|
|
if ($#ctx == 0 && $ctx !~ /{\s*/ &&
|
|
defined($lines[$ctx_ln - 1]) && $lines[$ctx_ln - 1] =~ /^\+\s*\{/ &&
|
|
defined($lines[$ctx_ln - 2]) && length($lines[$ctx_ln - 2]) < 80) {
|
|
ERROR("that open brace { should be on the previous line\n" .
|
|
"$here\n$ctx\n$rawlines[$ctx_ln - 1]\n");
|
|
}
|
|
if ($level == 0 && $pre_ctx !~ /}\s*while\s*\($/ &&
|
|
$ctx =~ /\)\s*\;\s*$/ &&
|
|
defined $lines[$ctx_ln - 1])
|
|
{
|
|
my ($nlength, $nindent) = line_stats($lines[$ctx_ln - 1]);
|
|
if ($nindent > $indent) {
|
|
ERROR("trailing semicolon indicates no statements, indent implies otherwise\n" .
|
|
"$here\n$ctx\n$rawlines[$ctx_ln - 1]\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
# 'do ... while (0/false)' only makes sense in macros, without trailing ';'
|
|
if ($line =~ /while\s*\((0|false)\);/) {
|
|
ERROR("suspicious ; after while (0)\n" . $herecurr);
|
|
}
|
|
|
|
# Check superfluous trailing ';'
|
|
if ($line =~ /;;$/) {
|
|
ERROR("superfluous trailing semicolon\n" . $herecurr);
|
|
}
|
|
|
|
# Check relative indent for conditionals and blocks.
|
|
if ($line =~ /\b(?:(?:if|while|for)\s*\(|do\b)/ && $line !~ /^.\s*#/ && $line !~ /\}\s*while\s*/) {
|
|
my ($s, $c) = ($stat, $cond);
|
|
|
|
substr($s, 0, length($c), '');
|
|
|
|
# Make sure we remove the line prefixes as we have
|
|
# none on the first line, and are going to re-add them
|
|
# where necessary.
|
|
$s =~ s/\n./\n/gs;
|
|
|
|
# Find out how long the conditional actually is.
|
|
my @newlines = ($c =~ /\n/gs);
|
|
my $cond_lines = 1 + $#newlines;
|
|
|
|
# We want to check the first line inside the block
|
|
# starting at the end of the conditional, so remove:
|
|
# 1) any blank line termination
|
|
# 2) any opening brace { on end of the line
|
|
# 3) any do (...) {
|
|
my $continuation = 0;
|
|
my $check = 0;
|
|
$s =~ s/^.*\bdo\b//;
|
|
$s =~ s/^\s*\{//;
|
|
if ($s =~ s/^\s*\\//) {
|
|
$continuation = 1;
|
|
}
|
|
if ($s =~ s/^\s*?\n//) {
|
|
$check = 1;
|
|
$cond_lines++;
|
|
}
|
|
|
|
# Also ignore a loop construct at the end of a
|
|
# preprocessor statement.
|
|
if (($prevline =~ /^.\s*#\s*define\s/ ||
|
|
$prevline =~ /\\\s*$/) && $continuation == 0) {
|
|
$check = 0;
|
|
}
|
|
|
|
my $cond_ptr = -1;
|
|
$continuation = 0;
|
|
while ($cond_ptr != $cond_lines) {
|
|
$cond_ptr = $cond_lines;
|
|
|
|
# If we see an #else/#elif then the code
|
|
# is not linear.
|
|
if ($s =~ /^\s*\#\s*(?:else|elif)/) {
|
|
$check = 0;
|
|
}
|
|
|
|
# Ignore:
|
|
# 1) blank lines, they should be at 0,
|
|
# 2) preprocessor lines, and
|
|
# 3) labels.
|
|
if ($continuation ||
|
|
$s =~ /^\s*?\n/ ||
|
|
$s =~ /^\s*#\s*?/ ||
|
|
$s =~ /^\s*$Ident\s*:/) {
|
|
$continuation = ($s =~ /^.*?\\\n/) ? 1 : 0;
|
|
if ($s =~ s/^.*?\n//) {
|
|
$cond_lines++;
|
|
}
|
|
}
|
|
}
|
|
|
|
my (undef, $sindent) = line_stats("+" . $s);
|
|
my $stat_real = raw_line($linenr, $cond_lines);
|
|
|
|
# Check if either of these lines are modified, else
|
|
# this is not this patch's fault.
|
|
if (!defined($stat_real) ||
|
|
$stat !~ /^\+/ && $stat_real !~ /^\+/) {
|
|
$check = 0;
|
|
}
|
|
if (defined($stat_real) && $cond_lines > 1) {
|
|
$stat_real = "[...]\n$stat_real";
|
|
}
|
|
|
|
#print "line<$line> prevline<$prevline> indent<$indent> sindent<$sindent> check<$check> continuation<$continuation> s<$s> cond_lines<$cond_lines> stat_real<$stat_real> stat<$stat>\n";
|
|
|
|
if ($check && (($sindent % 4) != 0 ||
|
|
($sindent <= $indent && $s ne ''))) {
|
|
ERROR("suspect code indent for conditional statements ($indent, $sindent)\n" . $herecurr . "$stat_real\n");
|
|
}
|
|
}
|
|
|
|
# Track the 'values' across context and added lines.
|
|
my $opline = $line; $opline =~ s/^./ /;
|
|
my ($curr_values, $curr_vars) =
|
|
annotate_values($opline . "\n", $prev_values);
|
|
$curr_values = $prev_values . $curr_values;
|
|
if ($dbg_values) {
|
|
my $outline = $opline; $outline =~ s/\t/ /g;
|
|
print "$linenr > .$outline\n";
|
|
print "$linenr > $curr_values\n";
|
|
print "$linenr > $curr_vars\n";
|
|
}
|
|
$prev_values = substr($curr_values, -1);
|
|
|
|
#ignore lines not being added
|
|
if ($line=~/^[^\+]/) {next;}
|
|
|
|
# TEST: allow direct testing of the type matcher.
|
|
if ($dbg_type) {
|
|
if ($line =~ /^.\s*$Declare\s*$/) {
|
|
ERROR("TEST: is type\n" . $herecurr);
|
|
} elsif ($dbg_type > 1 && $line =~ /^.+($Declare)/) {
|
|
ERROR("TEST: is not type ($1 is)\n". $herecurr);
|
|
}
|
|
next;
|
|
}
|
|
# TEST: allow direct testing of the attribute matcher.
|
|
if ($dbg_attr) {
|
|
if ($line =~ /^.\s*$Modifier\s*$/) {
|
|
ERROR("TEST: is attr\n" . $herecurr);
|
|
} elsif ($dbg_attr > 1 && $line =~ /^.+($Modifier)/) {
|
|
ERROR("TEST: is not attr ($1 is)\n". $herecurr);
|
|
}
|
|
next;
|
|
}
|
|
|
|
# check for initialisation to aggregates open brace on the next line
|
|
if ($line =~ /^.\s*\{/ &&
|
|
$prevline =~ /(?:^|[^=])=\s*$/) {
|
|
ERROR("that open brace { should be on the previous line\n" . $hereprev);
|
|
}
|
|
|
|
#
|
|
# Checks which are anchored on the added line.
|
|
#
|
|
|
|
# check for malformed paths in #include statements (uses RAW line)
|
|
if ($rawline =~ m{^.\s*\#\s*include\s+[<"](.*)[">]}) {
|
|
my $path = $1;
|
|
if ($path =~ m{//}) {
|
|
ERROR("malformed #include filename\n" .
|
|
$herecurr);
|
|
}
|
|
}
|
|
|
|
# Remove C99 comments.
|
|
$line =~ s@//.*@@;
|
|
$opline =~ s@//.*@@;
|
|
|
|
# check for global initialisers.
|
|
# if ($line =~ /^.$Type\s*$Ident\s*(?:\s+$Modifier)*\s*=\s*(0|NULL|false)\s*;/) {
|
|
# ERROR("do not initialise globals to 0 or NULL\n" .
|
|
# $herecurr);
|
|
# }
|
|
# check for static initialisers.
|
|
# if ($line =~ /\bstatic\s.*=\s*(0|NULL|false)\s*;/) {
|
|
# ERROR("do not initialise statics to 0 or NULL\n" .
|
|
# $herecurr);
|
|
# }
|
|
|
|
# * goes on variable not on type
|
|
# (char*[ const])
|
|
if ($line =~ m{\($NonptrType(\s*(?:$Modifier\b\s*|\*\s*)+)\)}) {
|
|
my ($from, $to) = ($1, $1);
|
|
|
|
# Should start with a space.
|
|
$to =~ s/^(\S)/ $1/;
|
|
# Should not end with a space.
|
|
$to =~ s/\s+$//;
|
|
# '*'s should not have spaces between.
|
|
while ($to =~ s/\*\s+\*/\*\*/) {
|
|
}
|
|
|
|
#print "from<$from> to<$to>\n";
|
|
if ($from ne $to) {
|
|
ERROR("\"(foo$from)\" should be \"(foo$to)\"\n" . $herecurr);
|
|
}
|
|
} elsif ($line =~ m{\b$NonptrType(\s*(?:$Modifier\b\s*|\*\s*)+)($Ident)}) {
|
|
my ($from, $to, $ident) = ($1, $1, $2);
|
|
|
|
# Should start with a space.
|
|
$to =~ s/^(\S)/ $1/;
|
|
# Should not end with a space.
|
|
$to =~ s/\s+$//;
|
|
# '*'s should not have spaces between.
|
|
while ($to =~ s/\*\s+\*/\*\*/) {
|
|
}
|
|
# Modifiers should have spaces.
|
|
$to =~ s/(\b$Modifier$)/$1 /;
|
|
|
|
#print "from<$from> to<$to> ident<$ident>\n";
|
|
if ($from ne $to && $ident !~ /^$Modifier$/) {
|
|
ERROR("\"foo${from}bar\" should be \"foo${to}bar\"\n" . $herecurr);
|
|
}
|
|
}
|
|
|
|
# function brace can't be on same line, except for #defines of do while,
|
|
# or if closed on same line
|
|
if (($line=~/$Type\s*$Ident\(.*\).*\s\{/) and
|
|
!($line=~/\#\s*define.*do\s\{/) and !($line=~/}/)) {
|
|
ERROR("open brace '{' following function declarations go on the next line\n" . $herecurr);
|
|
}
|
|
|
|
# missing space after union, struct or enum definition
|
|
if ($line =~ /^.\s*(?:typedef\s+)?(enum|union|struct)(?:\s+$Ident)?(?:\s+$Ident)?[=\{]/) {
|
|
ERROR("missing space after $1 definition\n" . $herecurr);
|
|
}
|
|
|
|
# check for spacing round square brackets; allowed:
|
|
# 1. with a type on the left -- int [] a;
|
|
# 2. at the beginning of a line for slice initialisers -- [0...10] = 5,
|
|
# 3. inside a curly brace -- = { [0...10] = 5 }
|
|
# 4. after a comma -- [1] = 5, [2] = 6
|
|
# 5. in a macro definition -- #define abc(x) [x] = y
|
|
while ($line =~ /(.*?\s)\[/g) {
|
|
my ($where, $prefix) = ($-[1], $1);
|
|
if ($prefix !~ /$Type\s+$/ &&
|
|
($where != 0 || $prefix !~ /^.\s+$/) &&
|
|
$prefix !~ /\#\s*define[^(]*\([^)]*\)\s+$/ &&
|
|
$prefix !~ /[,{:]\s+$/) {
|
|
ERROR("space prohibited before open square bracket '['\n" . $herecurr);
|
|
}
|
|
}
|
|
|
|
# check for spaces between functions and their parentheses.
|
|
while ($line =~ /($Ident)\s+\(/g) {
|
|
my $name = $1;
|
|
my $ctx_before = substr($line, 0, $-[1]);
|
|
my $ctx = "$ctx_before$name";
|
|
|
|
# Ignore those directives where spaces _are_ permitted.
|
|
if ($name =~ /^(?:
|
|
if|for|while|switch|return|case|
|
|
volatile|__volatile__|coroutine_fn|
|
|
__attribute__|format|__extension__|
|
|
asm|__asm__)$/x)
|
|
{
|
|
|
|
# Ignore 'catch (...)' in C++
|
|
} elsif ($name =~ /^catch$/ && $realfile =~ /(\.cpp|\.h)$/) {
|
|
|
|
# cpp #define statements have non-optional spaces, ie
|
|
# if there is a space between the name and the open
|
|
# parenthesis it is simply not a parameter group.
|
|
} elsif ($ctx_before =~ /^.\s*\#\s*define\s*$/) {
|
|
|
|
# cpp #elif statement condition may start with a (
|
|
} elsif ($ctx =~ /^.\s*\#\s*elif\s*$/) {
|
|
|
|
# If this whole things ends with a type its most
|
|
# likely a typedef for a function.
|
|
} elsif ($ctx =~ /$Type$/) {
|
|
|
|
} else {
|
|
ERROR("space prohibited between function name and open parenthesis '('\n" . $herecurr);
|
|
}
|
|
}
|
|
# Check operator spacing.
|
|
if (!($line=~/\#\s*include/)) {
|
|
my $ops = qr{
|
|
<<=|>>=|<=|>=|==|!=|
|
|
\+=|-=|\*=|\/=|%=|\^=|\|=|&=|
|
|
=>|->|<<|>>|<|>|=|!|~|
|
|
&&|\|\||,|\^|\+\+|--|&|\||\+|-|\*|\/|%|
|
|
\?|::|:
|
|
}x;
|
|
my @elements = split(/($ops|;)/, $opline);
|
|
my $off = 0;
|
|
|
|
my $blank = copy_spacing($opline);
|
|
|
|
for (my $n = 0; $n < $#elements; $n += 2) {
|
|
$off += length($elements[$n]);
|
|
|
|
# Pick up the preceding and succeeding characters.
|
|
my $ca = substr($opline, 0, $off);
|
|
my $cc = '';
|
|
if (length($opline) >= ($off + length($elements[$n + 1]))) {
|
|
$cc = substr($opline, $off + length($elements[$n + 1]));
|
|
}
|
|
my $cb = "$ca$;$cc";
|
|
|
|
my $a = '';
|
|
$a = 'V' if ($elements[$n] ne '');
|
|
$a = 'W' if ($elements[$n] =~ /\s$/);
|
|
$a = 'C' if ($elements[$n] =~ /$;$/);
|
|
$a = 'B' if ($elements[$n] =~ /(\[|\()$/);
|
|
$a = 'O' if ($elements[$n] eq '');
|
|
$a = 'E' if ($ca =~ /^\s*$/);
|
|
|
|
my $op = $elements[$n + 1];
|
|
|
|
my $c = '';
|
|
if (defined $elements[$n + 2]) {
|
|
$c = 'V' if ($elements[$n + 2] ne '');
|
|
$c = 'W' if ($elements[$n + 2] =~ /^\s/);
|
|
$c = 'C' if ($elements[$n + 2] =~ /^$;/);
|
|
$c = 'B' if ($elements[$n + 2] =~ /^(\)|\]|;)/);
|
|
$c = 'O' if ($elements[$n + 2] eq '');
|
|
$c = 'E' if ($elements[$n + 2] =~ /^\s*\\$/);
|
|
} else {
|
|
$c = 'E';
|
|
}
|
|
|
|
my $ctx = "${a}x${c}";
|
|
|
|
my $at = "(ctx:$ctx)";
|
|
|
|
my $ptr = substr($blank, 0, $off) . "^";
|
|
my $hereptr = "$hereline$ptr\n";
|
|
|
|
# Pull out the value of this operator.
|
|
my $op_type = substr($curr_values, $off + 1, 1);
|
|
|
|
# Get the full operator variant.
|
|
my $opv = $op . substr($curr_vars, $off, 1);
|
|
|
|
# Ignore operators passed as parameters.
|
|
if ($op_type ne 'V' &&
|
|
$ca =~ /\s$/ && $cc =~ /^\s*,/) {
|
|
|
|
# # Ignore comments
|
|
# } elsif ($op =~ /^$;+$/) {
|
|
|
|
# ; should have either the end of line or a space or \ after it
|
|
} elsif ($op eq ';') {
|
|
if ($ctx !~ /.x[WEBC]/ &&
|
|
$cc !~ /^\\/ && $cc !~ /^;/) {
|
|
ERROR("space required after that '$op' $at\n" . $hereptr);
|
|
}
|
|
|
|
# // is a comment
|
|
} elsif ($op eq '//') {
|
|
|
|
# Ignore : used in class declaration in C++
|
|
} elsif ($opv eq ':B' && $ctx =~ /Wx[WE]/ &&
|
|
$line =~ /class/ && $realfile =~ /(\.cpp|\.h)$/) {
|
|
|
|
# No spaces for:
|
|
# ->
|
|
# : when part of a bitfield
|
|
} elsif ($op eq '->' || $opv eq ':B') {
|
|
if ($ctx =~ /Wx.|.xW/) {
|
|
ERROR("spaces prohibited around that '$op' $at\n" . $hereptr);
|
|
}
|
|
|
|
# , must have a space on the right.
|
|
# not required when having a single },{ on one line
|
|
} elsif ($op eq ',') {
|
|
if ($ctx !~ /.x[WEC]/ && $cc !~ /^}/ &&
|
|
($elements[$n] . $elements[$n + 2]) !~ " *}\\{") {
|
|
ERROR("space required after that '$op' $at\n" . $hereptr);
|
|
}
|
|
|
|
# '*' as part of a type definition -- reported already.
|
|
} elsif ($opv eq '*_') {
|
|
#warn "'*' is part of type\n";
|
|
|
|
# unary operators should have a space before and
|
|
# none after. May be left adjacent to another
|
|
# unary operator, or a cast
|
|
} elsif ($op eq '!' || $op eq '~' ||
|
|
$opv eq '*U' || $opv eq '-U' ||
|
|
$opv eq '&U' || $opv eq '&&U') {
|
|
if ($op eq '~' && $ca =~ /::$/ && $realfile =~ /(\.cpp|\.h)$/) {
|
|
# '~' used as a name of Destructor
|
|
|
|
} elsif ($ctx !~ /[WEBC]x./ && $ca !~ /(?:\)|!|~|\*|-|\&|\||\+\+|\-\-|\{)$/) {
|
|
ERROR("space required before that '$op' $at\n" . $hereptr);
|
|
}
|
|
if ($op eq '*' && $cc =~/\s*$Modifier\b/) {
|
|
# A unary '*' may be const
|
|
|
|
} elsif ($ctx =~ /.xW/) {
|
|
ERROR("space prohibited after that '$op' $at\n" . $hereptr);
|
|
}
|
|
|
|
# unary ++ and unary -- are allowed no space on one side.
|
|
} elsif ($op eq '++' or $op eq '--') {
|
|
if ($ctx !~ /[WEOBC]x[^W]/ && $ctx !~ /[^W]x[WOBEC]/) {
|
|
ERROR("space required one side of that '$op' $at\n" . $hereptr);
|
|
}
|
|
if ($ctx =~ /Wx[BE]/ ||
|
|
($ctx =~ /Wx./ && $cc =~ /^;/)) {
|
|
ERROR("space prohibited before that '$op' $at\n" . $hereptr);
|
|
}
|
|
if ($ctx =~ /ExW/) {
|
|
ERROR("space prohibited after that '$op' $at\n" . $hereptr);
|
|
}
|
|
|
|
# A colon needs no spaces before when it is
|
|
# terminating a case value or a label.
|
|
} elsif ($opv eq ':C' || $opv eq ':L') {
|
|
if ($ctx =~ /Wx./) {
|
|
ERROR("space prohibited before that '$op' $at\n" . $hereptr);
|
|
}
|
|
|
|
# All the others need spaces both sides.
|
|
} elsif ($ctx !~ /[EWC]x[CWE]/) {
|
|
my $ok = 0;
|
|
|
|
if ($realfile =~ /\.cpp|\.h$/) {
|
|
# Ignore template arguments <...> in C++
|
|
if (($op eq '<' || $op eq '>') && $line =~ /<.*>/) {
|
|
$ok = 1;
|
|
}
|
|
|
|
# Ignore :: in C++
|
|
if ($op eq '::') {
|
|
$ok = 1;
|
|
}
|
|
}
|
|
|
|
# Ignore email addresses <foo@bar>
|
|
if (($op eq '<' &&
|
|
$cc =~ /^\S+\@\S+>/) ||
|
|
($op eq '>' &&
|
|
$ca =~ /<\S+\@\S+$/))
|
|
{
|
|
$ok = 1;
|
|
}
|
|
|
|
# Ignore ?:
|
|
if (($opv eq ':O' && $ca =~ /\?$/) ||
|
|
($op eq '?' && $cc =~ /^:/)) {
|
|
$ok = 1;
|
|
}
|
|
|
|
if ($ok == 0) {
|
|
ERROR("spaces required around that '$op' $at\n" . $hereptr);
|
|
}
|
|
}
|
|
$off += length($elements[$n + 1]);
|
|
}
|
|
}
|
|
|
|
#need space before brace following if, while, etc
|
|
if (($line =~ /\(.*\)\{/ && $line !~ /\($Type\)\{/) ||
|
|
$line =~ /do\{/) {
|
|
ERROR("space required before the open brace '{'\n" . $herecurr);
|
|
}
|
|
|
|
# closing brace should have a space following it when it has anything
|
|
# on the line
|
|
if ($line =~ /}(?!(?:,|;|\)))\S/) {
|
|
ERROR("space required after that close brace '}'\n" . $herecurr);
|
|
}
|
|
|
|
# check spacing on square brackets
|
|
if ($line =~ /\[\s/ && $line !~ /\[\s*$/) {
|
|
ERROR("space prohibited after that open square bracket '['\n" . $herecurr);
|
|
}
|
|
if ($line =~ /\s\]/) {
|
|
ERROR("space prohibited before that close square bracket ']'\n" . $herecurr);
|
|
}
|
|
|
|
# check spacing on parentheses
|
|
if ($line =~ /\(\s/ && $line !~ /\(\s*(?:\\)?$/ &&
|
|
$line !~ /for\s*\(\s+;/) {
|
|
ERROR("space prohibited after that open parenthesis '('\n" . $herecurr);
|
|
}
|
|
if ($line =~ /(\s+)\)/ && $line !~ /^.\s*\)/ &&
|
|
$line !~ /for\s*\(.*;\s+\)/ &&
|
|
$line !~ /:\s+\)/) {
|
|
ERROR("space prohibited before that close parenthesis ')'\n" . $herecurr);
|
|
}
|
|
|
|
if ($line =~ /^.\s*(Q(?:S?LIST|SIMPLEQ|TAILQ)_HEAD)\s*\(\s*[^,]/ &&
|
|
$line !~ /^.typedef/) {
|
|
ERROR("named $1 should be typedefed separately\n" . $herecurr);
|
|
}
|
|
|
|
# Return needs parens
|
|
if ($line =~ /^.\s*return [^(]/) {
|
|
ERROR("parentheses required on return\n" . $herecurr);
|
|
}
|
|
|
|
# Need a space before open parenthesis after if, while etc
|
|
if ($line=~/\b(if|while|for|switch|return)\(/) {
|
|
ERROR("space required before the open parenthesis '('\n" . $herecurr);
|
|
}
|
|
|
|
# Check for illegal assignment in if conditional -- and check for trailing
|
|
# statements after the conditional.
|
|
if ($line =~ /do\s*(?!{)/) {
|
|
my ($stat_next) = ctx_statement_block($line_nr_next,
|
|
$remain_next, $off_next);
|
|
$stat_next =~ s/\n./\n /g;
|
|
##print "stat<$stat> stat_next<$stat_next>\n";
|
|
|
|
if ($stat_next =~ /^\s*while\b/) {
|
|
# If the statement carries leading newlines,
|
|
# then count those as offsets.
|
|
my ($whitespace) =
|
|
($stat_next =~ /^((?:\s*\n[+-])*\s*)/s);
|
|
my $offset =
|
|
statement_rawlines($whitespace) - 1;
|
|
|
|
$suppress_whiletrailers{$line_nr_next +
|
|
$offset} = 1;
|
|
}
|
|
}
|
|
if (!defined $suppress_whiletrailers{$linenr} &&
|
|
$line =~ /\b(?:if|while|for)\s*\(/ && $line !~ /^.\s*#/) {
|
|
my ($s, $c) = ($stat, $cond);
|
|
|
|
# if ($c =~ /\bif\s*\(.*[^<>!=]=[^=].*/s) {
|
|
# ERROR("do not use assignment in if condition\n" . $herecurr);
|
|
# }
|
|
|
|
# Find out what is on the end of the line after the
|
|
# conditional.
|
|
substr($s, 0, length($c), '');
|
|
$s =~ s/\n.*//g;
|
|
$s =~ s/$;//g; # Remove any comments
|
|
if (length($c) && $s !~ /^\s*{?\s*\\*\s*$/ &&
|
|
$c !~ /}\s*while\s*/)
|
|
{
|
|
# Find out how long the conditional actually is.
|
|
my @newlines = ($c =~ /\n/gs);
|
|
my $cond_lines = 1 + $#newlines;
|
|
my $stat_real = '';
|
|
|
|
$stat_real = raw_line($linenr, $cond_lines)
|
|
. "\n" if ($cond_lines);
|
|
if (defined($stat_real) && $cond_lines > 1) {
|
|
$stat_real = "[...]\n$stat_real";
|
|
}
|
|
|
|
ERROR("trailing statements should be on next line\n" . $herecurr . $stat_real);
|
|
}
|
|
}
|
|
|
|
# Check for bitwise tests written as boolean
|
|
if ($line =~ /
|
|
(?:
|
|
(?:\[|\(|\&\&|\|\|)
|
|
\s*0[xX][0-9]+\s*
|
|
(?:\&\&|\|\|)
|
|
|
|
|
(?:\&\&|\|\|)
|
|
\s*0[xX][0-9]+\s*
|
|
(?:\&\&|\|\||\)|\])
|
|
)/x)
|
|
{
|
|
ERROR("boolean test with hexadecimal, perhaps just 1 \& or \|?\n" . $herecurr);
|
|
}
|
|
|
|
# if and else should not have general statements after it
|
|
if ($line =~ /^.\s*(?:}\s*)?else\b(.*)/) {
|
|
my $s = $1;
|
|
$s =~ s/$;//g; # Remove any comments
|
|
if ($s !~ /^\s*(?:\sif|(?:{|)\s*\\?\s*$)/) {
|
|
ERROR("trailing statements should be on next line\n" . $herecurr);
|
|
}
|
|
}
|
|
# if should not continue a brace
|
|
if ($line =~ /}\s*if\b/) {
|
|
ERROR("trailing statements should be on next line\n" .
|
|
$herecurr);
|
|
}
|
|
# case and default should not have general statements after them
|
|
if ($line =~ /^.\s*(?:case\s*.*|default\s*):/g &&
|
|
$line !~ /\G(?:
|
|
(?:\s*$;*)(?:\s*{)?(?:\s*$;*)(?:\s*\\)?\s*$|
|
|
\s*return\s+
|
|
)/xg)
|
|
{
|
|
ERROR("trailing statements should be on next line\n" . $herecurr);
|
|
}
|
|
|
|
# Check for }<nl>else {, these must be at the same
|
|
# indent level to be relevant to each other.
|
|
if ($prevline=~/}\s*$/ and $line=~/^.\s*else\s*/ and
|
|
$previndent == $indent) {
|
|
ERROR("else should follow close brace '}'\n" . $hereprev);
|
|
}
|
|
|
|
if ($prevline=~/}\s*$/ and $line=~/^.\s*while\s*/ and
|
|
$previndent == $indent) {
|
|
my ($s, $c) = ctx_statement_block($linenr, $realcnt, 0);
|
|
|
|
# Find out what is on the end of the line after the
|
|
# conditional.
|
|
substr($s, 0, length($c), '');
|
|
$s =~ s/\n.*//g;
|
|
|
|
if ($s =~ /^\s*;/) {
|
|
ERROR("while should follow close brace '}'\n" . $hereprev);
|
|
}
|
|
}
|
|
|
|
#no spaces allowed after \ in define
|
|
if ($line=~/\#\s*define.*\\\s$/) {
|
|
ERROR("Whitespace after \\ makes next lines useless\n" . $herecurr);
|
|
}
|
|
|
|
# multi-statement macros should be enclosed in a do while loop, grab the
|
|
# first statement and ensure its the whole macro if its not enclosed
|
|
# in a known good container
|
|
if ($realfile !~ m@/vmlinux.lds.h$@ &&
|
|
$line =~ /^.\s*\#\s*define\s*$Ident(\()?/) {
|
|
my $ln = $linenr;
|
|
my $cnt = $realcnt;
|
|
my ($off, $dstat, $dcond, $rest);
|
|
my $ctx = '';
|
|
|
|
my $args = defined($1);
|
|
|
|
# Find the end of the macro and limit our statement
|
|
# search to that.
|
|
while ($cnt > 0 && defined $lines[$ln - 1] &&
|
|
$lines[$ln - 1] =~ /^(?:-|..*\\$)/)
|
|
{
|
|
$ctx .= $rawlines[$ln - 1] . "\n";
|
|
$cnt-- if ($lines[$ln - 1] !~ /^-/);
|
|
$ln++;
|
|
}
|
|
$ctx .= $rawlines[$ln - 1];
|
|
|
|
($dstat, $dcond, $ln, $cnt, $off) =
|
|
ctx_statement_block($linenr, $ln - $linenr + 1, 0);
|
|
#print "dstat<$dstat> dcond<$dcond> cnt<$cnt> off<$off>\n";
|
|
#print "LINE<$lines[$ln-1]> len<" . length($lines[$ln-1]) . "\n";
|
|
|
|
# Extract the remainder of the define (if any) and
|
|
# rip off surrounding spaces, and trailing \'s.
|
|
$rest = '';
|
|
while ($off != 0 || ($cnt > 0 && $rest =~ /\\\s*$/)) {
|
|
#print "ADDING cnt<$cnt> $off <" . substr($lines[$ln - 1], $off) . "> rest<$rest>\n";
|
|
if ($off != 0 || $lines[$ln - 1] !~ /^-/) {
|
|
$rest .= substr($lines[$ln - 1], $off) . "\n";
|
|
$cnt--;
|
|
}
|
|
$ln++;
|
|
$off = 0;
|
|
}
|
|
$rest =~ s/\\\n.//g;
|
|
$rest =~ s/^\s*//s;
|
|
$rest =~ s/\s*$//s;
|
|
|
|
# Clean up the original statement.
|
|
if ($args) {
|
|
substr($dstat, 0, length($dcond), '');
|
|
} else {
|
|
$dstat =~ s/^.\s*\#\s*define\s+$Ident\s*//;
|
|
}
|
|
$dstat =~ s/$;//g;
|
|
$dstat =~ s/\\\n.//g;
|
|
$dstat =~ s/^\s*//s;
|
|
$dstat =~ s/\s*$//s;
|
|
|
|
# Flatten any parentheses and braces
|
|
while ($dstat =~ s/\([^\(\)]*\)/1/ ||
|
|
$dstat =~ s/\{[^\{\}]*\}/1/ ||
|
|
$dstat =~ s/\[[^\{\}]*\]/1/)
|
|
{
|
|
}
|
|
|
|
my $exceptions = qr{
|
|
$Declare|
|
|
module_param_named|
|
|
MODULE_PARAM_DESC|
|
|
DECLARE_PER_CPU|
|
|
DEFINE_PER_CPU|
|
|
__typeof__\(|
|
|
union|
|
|
struct|
|
|
\.$Ident\s*=\s*|
|
|
^\"|\"$
|
|
}x;
|
|
#print "REST<$rest> dstat<$dstat> ctx<$ctx>\n";
|
|
if ($rest ne '' && $rest ne ',') {
|
|
if ($rest !~ /while\s*\(/ &&
|
|
$dstat !~ /$exceptions/)
|
|
{
|
|
ERROR("Macros with multiple statements should be enclosed in a do - while loop\n" . "$here\n$ctx\n");
|
|
}
|
|
|
|
} elsif ($ctx !~ /;/) {
|
|
if ($dstat ne '' &&
|
|
$dstat !~ /^(?:$Ident|-?$Constant)$/ &&
|
|
$dstat !~ /$exceptions/ &&
|
|
$dstat !~ /^\.$Ident\s*=/ &&
|
|
$dstat =~ /$Operators/)
|
|
{
|
|
ERROR("Macros with complex values should be enclosed in parenthesis\n" . "$here\n$ctx\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
# check for missing bracing around if etc
|
|
if ($line =~ /(^.*)\b(?:if|while|for)\b/ &&
|
|
$line !~ /\#\s*if/) {
|
|
my $allowed = 0;
|
|
|
|
# Check the pre-context.
|
|
if ($line =~ /(\}.*?)$/) {
|
|
my $pre = $1;
|
|
|
|
if ($line !~ /else/) {
|
|
print "APW: ALLOWED: pre<$pre> line<$line>\n"
|
|
if $dbg_adv_apw;
|
|
$allowed = 1;
|
|
}
|
|
}
|
|
my ($level, $endln, @chunks) =
|
|
ctx_statement_full($linenr, $realcnt, 1);
|
|
if ($dbg_adv_apw) {
|
|
print "APW: chunks<$#chunks> linenr<$linenr> endln<$endln> level<$level>\n";
|
|
print "APW: <<$chunks[1][0]>><<$chunks[1][1]>>\n"
|
|
if $#chunks >= 1;
|
|
}
|
|
if ($#chunks >= 0 && $level == 0) {
|
|
my $seen = 0;
|
|
my $herectx = $here . "\n";
|
|
my $ln = $linenr - 1;
|
|
for my $chunk (@chunks) {
|
|
my ($cond, $block) = @{$chunk};
|
|
|
|
# If the condition carries leading newlines, then count those as offsets.
|
|
my ($whitespace) = ($cond =~ /^((?:\s*\n[+-])*\s*)/s);
|
|
my $offset = statement_rawlines($whitespace) - 1;
|
|
|
|
#print "COND<$cond> whitespace<$whitespace> offset<$offset>\n";
|
|
|
|
# We have looked at and allowed this specific line.
|
|
$suppress_ifbraces{$ln + $offset} = 1;
|
|
|
|
$herectx .= "$rawlines[$ln + $offset]\n[...]\n";
|
|
$ln += statement_rawlines($block) - 1;
|
|
|
|
substr($block, 0, length($cond), '');
|
|
|
|
my $spaced_block = $block;
|
|
$spaced_block =~ s/\n\+/ /g;
|
|
|
|
$seen++ if ($spaced_block =~ /^\s*\{/);
|
|
|
|
print "APW: cond<$cond> block<$block> allowed<$allowed>\n"
|
|
if $dbg_adv_apw;
|
|
if (statement_lines($cond) > 1) {
|
|
print "APW: ALLOWED: cond<$cond>\n"
|
|
if $dbg_adv_apw;
|
|
$allowed = 1;
|
|
}
|
|
if ($block =~/\b(?:if|for|while)\b/) {
|
|
print "APW: ALLOWED: block<$block>\n"
|
|
if $dbg_adv_apw;
|
|
$allowed = 1;
|
|
}
|
|
if (statement_block_size($block) > 1) {
|
|
print "APW: ALLOWED: lines block<$block>\n"
|
|
if $dbg_adv_apw;
|
|
$allowed = 1;
|
|
}
|
|
}
|
|
$allowed=1; # disable for now.
|
|
if ($seen != ($#chunks + 1) && !$allowed) {
|
|
ERROR("braces {} are necessary for all arms of this statement\n" . $herectx);
|
|
}
|
|
}
|
|
}
|
|
if (!defined $suppress_ifbraces{$linenr - 1} &&
|
|
$line =~ /\b(if|while|for|else)\b/ &&
|
|
$line !~ /\#\s*if/ &&
|
|
$line !~ /\#\s*else/) {
|
|
my $allowed = 0;
|
|
|
|
# Check the pre-context.
|
|
if (substr($line, 0, $-[0]) =~ /(\}\s*)$/) {
|
|
my $pre = $1;
|
|
|
|
if ($line !~ /else/) {
|
|
print "APW: ALLOWED: pre<$pre> line<$line>\n"
|
|
if $dbg_adv_apw;
|
|
$allowed = 1;
|
|
}
|
|
}
|
|
|
|
my ($level, $endln, @chunks) =
|
|
ctx_statement_full($linenr, $realcnt, $-[0]);
|
|
|
|
# Check the condition.
|
|
my ($cond, $block) = @{$chunks[0]};
|
|
print "CHECKING<$linenr> cond<$cond> block<$block>\n"
|
|
if $dbg_adv_checking;
|
|
if (defined $cond) {
|
|
substr($block, 0, length($cond), '');
|
|
}
|
|
if (statement_lines($cond) > 1) {
|
|
print "APW: ALLOWED: cond<$cond>\n"
|
|
if $dbg_adv_apw;
|
|
$allowed = 1;
|
|
}
|
|
if ($block =~/\b(?:if|for|while)\b/) {
|
|
print "APW: ALLOWED: block<$block>\n"
|
|
if $dbg_adv_apw;
|
|
$allowed = 1;
|
|
}
|
|
if (statement_block_size($block) > 1) {
|
|
print "APW: ALLOWED: lines block<$block>\n"
|
|
if $dbg_adv_apw;
|
|
$allowed = 1;
|
|
}
|
|
# Check the post-context.
|
|
if (defined $chunks[1]) {
|
|
my ($cond, $block) = @{$chunks[1]};
|
|
if (defined $cond) {
|
|
substr($block, 0, length($cond), '');
|
|
}
|
|
if ($block =~ /^\s*\{/) {
|
|
print "APW: ALLOWED: chunk-1 block<$block>\n"
|
|
if $dbg_adv_apw;
|
|
$allowed = 1;
|
|
}
|
|
}
|
|
print "DCS: level=$level block<$block> allowed=$allowed\n"
|
|
if $dbg_adv_dcs;
|
|
if ($level == 0 && $block !~ /^\s*\{/ && !$allowed) {
|
|
my $herectx = $here . "\n";;
|
|
my $cnt = statement_rawlines($block);
|
|
|
|
for (my $n = 0; $n < $cnt; $n++) {
|
|
$herectx .= raw_line($linenr, $n) . "\n";;
|
|
}
|
|
|
|
ERROR("braces {} are necessary even for single statement blocks\n" . $herectx);
|
|
}
|
|
}
|
|
|
|
# warn about #if 0
|
|
if ($line =~ /^.\s*\#\s*if\s+0\b/) {
|
|
ERROR("if this code is redundant consider removing it\n" .
|
|
$herecurr);
|
|
}
|
|
|
|
# Check that the storage class is at the beginning of a declaration
|
|
if ($line =~ /\b$Storage\b/ && $line !~ /^.\s*$Storage\b/) {
|
|
ERROR("storage class should be at the beginning of the declaration\n" . $herecurr)
|
|
}
|
|
|
|
# check the location of the inline attribute, that it is between
|
|
# storage class and type.
|
|
if ($line =~ /\b$Type\s+$Inline\b/ ||
|
|
$line =~ /\b$Inline\s+$Storage\b/) {
|
|
ERROR("inline keyword should sit between storage class and type\n" . $herecurr);
|
|
}
|
|
|
|
# check for sizeof(&)
|
|
if ($line =~ /\bsizeof\s*\(\s*\&/) {
|
|
ERROR("sizeof(& should be avoided\n" . $herecurr);
|
|
}
|
|
|
|
# check for new externs in .c files.
|
|
if ($realfile =~ /\.c$/ && defined $stat &&
|
|
$stat =~ /^.\s*(?:extern\s+)?$Type\s+($Ident)(\s*)\(/s)
|
|
{
|
|
my $function_name = $1;
|
|
my $paren_space = $2;
|
|
|
|
my $s = $stat;
|
|
if (defined $cond) {
|
|
substr($s, 0, length($cond), '');
|
|
}
|
|
if ($s =~ /^\s*;/ &&
|
|
$function_name ne 'uninitialized_var')
|
|
{
|
|
ERROR("externs should be avoided in .c files\n" . $herecurr);
|
|
}
|
|
|
|
if ($paren_space =~ /\n/) {
|
|
ERROR("arguments for function declarations should follow identifier\n" . $herecurr);
|
|
}
|
|
|
|
} elsif ($realfile =~ /\.c$/ && defined $stat &&
|
|
$stat =~ /^.\s*extern\s+/)
|
|
{
|
|
ERROR("externs should be avoided in .c files\n" . $herecurr);
|
|
}
|
|
|
|
# check for gcc specific __FUNCTION__
|
|
if ($line =~ /__FUNCTION__/) {
|
|
ERROR("__func__ should be used instead of gcc specific __FUNCTION__\n" . $herecurr);
|
|
}
|
|
|
|
# recommend sigaction over signal for portability, when establishing a handler
|
|
if ($line =~ /\bsignal\s*\(/ && !($line =~ /SIG_(?:IGN|DFL)/)) {
|
|
ERROR("use sigaction to establish signal handlers; signal is not portable\n" . $herecurr);
|
|
}
|
|
|
|
# format strings checks
|
|
my $string;
|
|
while ($line =~ /(?:^|")([X\t]*)(?:"|$)/g) {
|
|
$string = substr($rawline, $-[1], $+[1] - $-[1]);
|
|
$string =~ s/%%/__/g;
|
|
# check for %L{u,d,i} in strings
|
|
if ($string =~ /(?<!%)%L[udi]/) {
|
|
ERROR("\%Ld/%Lu are not-standard C, use %lld/%llu\n" . $herecurr);
|
|
}
|
|
}
|
|
|
|
# Continue checking for error messages that contains newlines. This
|
|
# check handles cases where string literals are spread over multiple lines.
|
|
# Example:
|
|
# error_report("Error msg line #1"
|
|
# "Error msg line #2\n");
|
|
my $quoted_newline_regex = qr{\+\s*\".*\\n.*\"};
|
|
my $continued_str_literal = qr{\+\s*\".*\"};
|
|
|
|
if ($rawline =~ /$quoted_newline_regex/) {
|
|
# Backtrack to first line that does not contain only a quoted literal
|
|
# and assume that it is the start of the statement.
|
|
my $i = $linenr - 2;
|
|
|
|
while (($i >= 0) & $rawlines[$i] =~ /$continued_str_literal/) {
|
|
$i--;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
# If we have no input at all, then there is nothing to report on
|
|
# so just keep quiet.
|
|
if ($#rawlines == -1) {
|
|
return 1;
|
|
}
|
|
|
|
# In mailback mode only produce a report in the negative, for
|
|
# things that appear to be patches.
|
|
if ($mailback && ($clean == 1 || !$is_patch)) {
|
|
return 1;
|
|
}
|
|
|
|
# This is not a patch, and we are are in 'no-patch' mode so
|
|
# just keep quiet.
|
|
if (!$chk_patch && !$is_patch) {
|
|
return 1;
|
|
}
|
|
|
|
if (!$is_patch && $filename !~ /cover-letter\.patch$/) {
|
|
ERROR("Does not appear to be a unified-diff format patch\n");
|
|
}
|
|
|
|
print report_dump();
|
|
if ($summary && !($clean == 1 && $quiet == 1)) {
|
|
print "$filename " if ($summary_file);
|
|
print "total: $cnt_error errors, $cnt_warn warnings, " .
|
|
"$cnt_lines lines checked\n";
|
|
print "\n" if ($quiet == 0);
|
|
}
|
|
|
|
if ($quiet == 0) {
|
|
# If there were whitespace errors which cleanpatch can fix
|
|
# then suggest that.
|
|
# if ($rpt_cleaners) {
|
|
# print "NOTE: whitespace errors detected, you may wish to use scripts/cleanpatch or\n";
|
|
# print " scripts/cleanfile\n\n";
|
|
# }
|
|
}
|
|
|
|
if ($clean == 1 && $quiet == 0) {
|
|
print "$vname has no obvious style problems and is ready for submission.\n"
|
|
}
|
|
|
|
return ($no_warnings ? $clean : $cnt_error == 0);
|
|
}
|