| 1 | |
| 2 | |
| 3 | |
| 4 | |
| 5 | |
| 6 | |
| 7 | |
| 8 | |
| 9 |
|
| 10 | use Getopt::Std;
|
| 11 | use strict;
|
| 12 |
|
| 13 | sub numerically {
|
| 14 | my $no1 = (split /\s+/, $a)[1];
|
| 15 | my $no2 = (split /\s+/, $b)[1];
|
| 16 | return $no1 <=> $no2;
|
| 17 | }
|
| 18 |
|
| 19 | sub alphabetically {
|
| 20 | my ($module1, $value1) = @{$a};
|
| 21 | my ($module2, $value2) = @{$b};
|
| 22 | return $value1 <=> $value2 || $module2 cmp $module1;
|
| 23 | }
|
| 24 |
|
| 25 | sub print_depends_on {
|
| 26 | my ($href) = @_;
|
| 27 | print "\n";
|
| 28 | while (my ($mod, $list) = each %$href) {
|
| 29 | print "\t$mod:\n";
|
| 30 | foreach my $sym (sort numerically @{$list}) {
|
| 31 | my ($symbol, $no) = split /\s+/, $sym;
|
| 32 | printf("\t\t%-25s\t%-25d\n", $symbol, $no);
|
| 33 | }
|
| 34 | print "\n";
|
| 35 | }
|
| 36 | print "\n";
|
| 37 | print "~"x80 , "\n";
|
| 38 | }
|
| 39 |
|
| 40 | sub usage {
|
| 41 | print "Usage: @_ -h -k Module.symvers [ -o outputfile ] \n",
|
| 42 | "\t-f: treat all the non-option argument as .mod.c files. ",
|
| 43 | "Recommend using this as the last option\n",
|
| 44 | "\t-h: print detailed help\n",
|
| 45 | "\t-k: the path to Module.symvers file. By default uses ",
|
| 46 | "the file from the current directory\n",
|
| 47 | "\t-o outputfile: output the report to outputfile\n";
|
| 48 | exit 0;
|
| 49 | }
|
| 50 |
|
| 51 | sub collectcfiles {
|
| 52 | my @file = `cat .tmp_versions/*.mod | grep '.*\.ko\$'`;
|
| 53 | @file = grep {s/\.ko/.mod.c/} @file;
|
| 54 | chomp @file;
|
| 55 | return @file;
|
| 56 | }
|
| 57 |
|
| 58 | my (%SYMBOL, %MODULE, %opt, @allcfiles);
|
| 59 |
|
| 60 | if (not getopts('hk:o:f',\%opt) or defined $opt{'h'}) {
|
| 61 | usage($0);
|
| 62 | }
|
| 63 |
|
| 64 | if (defined $opt{'f'}) {
|
| 65 | @allcfiles = @ARGV;
|
| 66 | } else {
|
| 67 | @allcfiles = collectcfiles();
|
| 68 | }
|
| 69 |
|
| 70 | if (not defined $opt{'k'}) {
|
| 71 | $opt{'k'} = "Module.symvers";
|
| 72 | }
|
| 73 |
|
| 74 | unless (open(MODULE_SYMVERS, $opt{'k'})) {
|
| 75 | die "Sorry, cannot open $opt{'k'}: $!\n";
|
| 76 | }
|
| 77 |
|
| 78 | if (defined $opt{'o'}) {
|
| 79 | unless (open(OUTPUT_HANDLE, ">$opt{'o'}")) {
|
| 80 | die "Sorry, cannot open $opt{'o'} $!\n";
|
| 81 | }
|
| 82 | select OUTPUT_HANDLE;
|
| 83 | }
|
| 84 | |
| 85 | |
| 86 | |
| 87 | |
| 88 | while ( <MODULE_SYMVERS> ) {
|
| 89 | chomp;
|
| 90 | my (undef, $symbol, $module, $gpl) = split;
|
| 91 | $SYMBOL { $symbol } = [ $module , "0" , $symbol, $gpl];
|
| 92 | }
|
| 93 | close(MODULE_SYMVERS);
|
| 94 |
|
| 95 | |
| 96 | |
| 97 | |
| 98 | foreach my $thismod (@allcfiles) {
|
| 99 | unless (open(MODULE_MODULE, $thismod)) {
|
| 100 | print "Sorry, cannot open $thismod: $!\n";
|
| 101 | next;
|
| 102 | }
|
| 103 | my $state=0;
|
| 104 | while ( <MODULE_MODULE> ) {
|
| 105 | chomp;
|
| 106 | if ($state == 0) {
|
| 107 | $state = 1 if ($_ =~ /static const struct modversion_info/);
|
| 108 | next;
|
| 109 | }
|
| 110 | if ($state == 1) {
|
| 111 | $state = 2 if ($_ =~ /__attribute__\(\(section\("__versions"\)\)\)/);
|
| 112 | next;
|
| 113 | }
|
| 114 | if ($state == 2) {
|
| 115 | if ( $_ !~ /0x[0-9a-f]+,/ ) {
|
| 116 | next;
|
| 117 | }
|
| 118 | my $sym = (split /([,"])/,)[4];
|
| 119 | my ($module, $value, $symbol, $gpl) = @{$SYMBOL{$sym}};
|
| 120 | $SYMBOL{ $sym } = [ $module, $value+1, $symbol, $gpl];
|
| 121 | push(@{$MODULE{$thismod}} , $sym);
|
| 122 | }
|
| 123 | }
|
| 124 | if ($state != 2) {
|
| 125 | print "WARNING:$thismod is not built with CONFIG_MODVERSION enabled\n";
|
| 126 | }
|
| 127 | close(MODULE_MODULE);
|
| 128 | }
|
| 129 |
|
| 130 | print "\tThis file reports the exported symbols usage patterns by in-tree\n",
|
| 131 | "\t\t\t\tmodules\n";
|
| 132 | printf("%s\n\n\n","x"x80);
|
| 133 | printf("\t\t\t\tINDEX\n\n\n");
|
| 134 | printf("SECTION 1: Usage counts of all exported symbols\n");
|
| 135 | printf("SECTION 2: List of modules and the exported symbols they use\n");
|
| 136 | printf("%s\n\n\n","x"x80);
|
| 137 | printf("SECTION 1:\tThe exported symbols and their usage count\n\n");
|
| 138 | printf("%-25s\t%-25s\t%-5s\t%-25s\n", "Symbol", "Module", "Usage count",
|
| 139 | "export type");
|
| 140 |
|
| 141 | |
| 142 | |
| 143 | |
| 144 | foreach my $list (sort alphabetically values(%SYMBOL)) {
|
| 145 | my ($module, $value, $symbol, $gpl) = @{$list};
|
| 146 | printf("%-25s\t%-25s\t%-10s\t", $symbol, $module, $value);
|
| 147 | if (defined $gpl) {
|
| 148 | printf("%-25s\n",$gpl);
|
| 149 | } else {
|
| 150 | printf("\n");
|
| 151 | }
|
| 152 | }
|
| 153 | printf("%s\n\n\n","x"x80);
|
| 154 |
|
| 155 | printf("SECTION 2:\n\tThis section reports export-symbol-usage of in-kernel
|
| 156 | modules. Each module lists the modules, and the symbols from that module that
|
| 157 | it uses. Each listed symbol reports the number of modules using it\n");
|
| 158 |
|
| 159 | print "~"x80 , "\n";
|
| 160 | while (my ($thismod, $list) = each %MODULE) {
|
| 161 | my %depends;
|
| 162 | $thismod =~ s/\.mod\.c/.ko/;
|
| 163 | print "\t\t\t$thismod\n";
|
| 164 | foreach my $symbol (@{$list}) {
|
| 165 | my ($module, $value, undef, $gpl) = @{$SYMBOL{$symbol}};
|
| 166 | push (@{$depends{"$module"}}, "$symbol $value");
|
| 167 | }
|
| 168 | print_depends_on(\%depends);
|
| 169 | }
|