+++ /dev/null
-#! /usr/bin/perl
-# kabi - Linux Kernel Application Binary Interface manager
-#
-# Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
-# Use is subject to license terms.
-#
-# Gordon Matzigkeit <gord@clusterfs.com>, 2005-10-21
-
-use warnings;
-use strict;
-
-my $VERSION = '0.2';
-
-my $CC = $ENV{'CC'} || 'gcc';
-my $LINUX = '/usr/src/linux';
-my $MODE;
-my $OUTPUT;
-my @ARGS;
-my $VERBOSE = 0;
-
-my $progname = $0;
-$progname =~ s/^.*\///;
-my $modename = $progname;
-
-sub usage
-{
- my ($status) = @_;
- if ($status) {
- print STDERR "Try \`$0 --help' for more information\n";
- } else {
- print <<EOF;
-Usage: [CC=COMPILER] $0 [OPTION]... MODE ARGS...
-
-Manage binary compatibility between a Linux kernel and kernel modules.
-
-The CC environment variable specifies the compiler used to build the
-kernel and modules.
-
- --help display this message and exit
--o, --output=KABI specify the name of the KABI file created by the
- \`module\' mode [default=strip .ko and add .kabi]
--v, --verbose give reasons for rejecting KABI matches
- --version print version information
- --with-linux=DIR set the path to the kernel sources
-
-MODE and ARGS can be one of the following:
-
- archive DIR KMOD install a KABI and kernel module in a unique place in DIR
- match FILE... print a list of KABI files which are compatible with
- the specified kernel and any specified kernel modules
-
- module KMOD generate a KABI file for the specified kernel module
-
-Written by Gordon Matzigkeit <gord\@clusterfs.com> for Sun Microsystems, Inc.
-EOF
- }
- exit $status;
-}
-
-my @args = @ARGV;
-while ($#args >= 0) {
- if ($args[0] =~ /^--with-l(i(n(u(x)?)?)?)?=(.*)/) {
- $LINUX = $5;
- } elsif ($args[0] =~ /^--with-l(i(n(u(x)?)?)?)?$/) {
- shift @args;
- $LINUX = $args[0];
- } elsif ($args[0] =~ /^--h(e(l(p)?)?)?$/) {
- usage(0);
- } elsif ($args[0] =~ /^--vers(i(o(n)?)?)?$/) {
- print "KABI $VERSION\n";
- exit 0;
- } elsif ($args[0] eq '-v' || $args[0] =~ /^--verb(o(s(e)?)?)?$/) {
- $VERBOSE = 1;
- } elsif ($args[0] =~ /^-/) {
- print STDERR "$progname: unrecognized option \`$args[0]'\n";
- usage(1);
- } elsif (!defined $MODE) {
- $MODE = $args[0];
- } else {
- push @ARGS, $args[0];
- }
- shift @args;
-}
-
-
-if (!defined $MODE) {
- print STDERR "$progname: you must specify a MODE\n";
- usage(1);
-}
-
-$modename .= ": $MODE";
-if ($MODE eq 'archive') {
- if ($#ARGS != 1) {
- print STDERR "$modename: you must specify a DIR and KMOD\n";
- usage(1);
- }
-
- my $ARCHIVE = $ARGS[0];
- my $KMOD = $ARGS[1];
-
- my $KABI = $KMOD;
- $KABI =~ s/\.k?o$//;
- $KABI .= '.kabi';
-
- open(MD5SUM, "md5sum $KABI|") or
- die "$modename: cannot execute \`md5sum': $!\n";
- my $hash = <MD5SUM>;
- close(MD5SUM);
- $hash =~ s/\s+.*//s;
-
- my $TAG = '';
- if (-d 'CVS') {
- open(TAG, '<CVS/Tag') or
- die "$modename: cannot read \`CVS/Tag': $!\n";
- $TAG = <TAG>;
- close(TAG);
- chomp $TAG;
- $TAG = "/$TAG";
- }
-
- my ($dir, @sh_c, @cp);
- if ($ARCHIVE =~ /^([^:][^:]+):(.*)$/) {
- $dir = $2;
- @sh_c = ('ssh', '-o', 'BatchMode=yes', $1);
- @cp = ('scp', '-B');
- } else {
- $dir = $ARCHIVE;
- @sh_c = ('sh', '-c');
- @cp = ('cp');
- }
-
- system(@sh_c, "test -d $dir");
- if ($? >> 8 != 0) {
- print STDERR "$modename: warning: \`$dir' is not reachable or does not exist\n";
- exit 0;
- }
-
- print "archiving $KMOD in $ARCHIVE$TAG/$KMOD/$hash\n"
- if $VERBOSE;
- foreach my $d ("$dir$TAG", "$dir$TAG/$KMOD", "$dir$TAG/$KMOD/$hash") {
- system(@sh_c, "test -d $d || mkdir $d");
- if ($? >> 8 != 0) {
- exit $? >> 8;
- }
- }
- system(@cp, $KMOD, $KABI, "$ARCHIVE$TAG/$KMOD/$hash");
- exit $? >> 8;
-} elsif ($MODE eq 'module') {
-
- if ($#ARGS != 0) {
- print STDERR "$modename: you must specify exactly one KMOD\n";
- usage(1);
- }
-
- my $KMOD = $ARGS[0];
-
- if (!defined $OUTPUT) {
- $OUTPUT = $KMOD;
- $OUTPUT =~ s/\.k?o$//;
- $OUTPUT .= '.kabi';
- }
- print "create $OUTPUT\n" if $VERBOSE;
- open(OUT, ">$OUTPUT") or
- die "$modename: cannot create \`$OUTPUT': $!\n";
-
- my $outname = $OUTPUT;
- $outname =~ s/^.*\///;
- print OUT <<EOF;
-# $outname - Kernel module ABI descriptor file
-# DO NOT EDIT - Automatically generated by $progname $VERSION
-EOF
-
- # Get the kernel version.
- print OUT "kver " . kernel_version() . "\n";
-
- # Gather the undefined symbols with version numbers from the
- # kernel module.
- my %vers;
- my @undefs;
-
- # Gather the version numbers, if any.
- my $modfile = $KMOD;
- if ($modfile =~ s/\.ko$/.mod.c/) {
- open(MOD, "<$modfile") or
- die "$modename: cannot read \`$modfile': $!\n";
- my $versions = 0;
- while ($_ = <MOD>) {
- if (/\"__versions\"/) {
- $versions = 1;
- } elsif ($versions) {
- if (/^\s*\{\s*(0x[0-9a-f]+)\s*,\s*\"([^\"]*)\"\s*\}\s*,\s*$/) {
- $vers{$2} = $1;
- push(@undefs, $2);
- } elsif (/^\s*\}\s*;\s*$/) {
- $versions = 0;
- }
- }
- }
- close(MOD);
- } else {
- open(NM, "nm $KMOD |") or
- die "$modename: cannot execute \`nm $KMOD': $!\n";
- while ($_ = <NM>) {
- if (/^\s*U\s*(.*\S)\s*$/) {
- push @undefs, $1;
- }
- }
- close(NM);
- }
-
- foreach my $undef (sort @undefs)
- {
- print OUT "usym $undef";
- if (defined $vers{$undef}) {
- print OUT " ", $vers{$undef};
- }
- print OUT "\n";
- }
-
- close(OUT) or
- die "$modename: cannot write \`$OUTPUT': $!\n";
-
-} elsif ($MODE eq 'match') {
- my @KABIS;
- my @KMODS;
-
- my @todo = @ARGS;
- while ($#todo >= 0) {
- my $t = shift @todo;
- if ($t =~ /\.kabi$/) {
- push @KABIS, $t;
- } elsif (-d $t) {
- # Add all the contents of the directory to our todo list.
- opendir(DIR, $t);
- while (my $ent = readdir(DIR)) {
- if ($ent =~ /^\./) {
- # Skip dotfiles.
- } elsif (-d "$t/$ent") {
- # Recurse into subdirectories.
- unshift @todo, "$t/$ent";
- } elsif ($ent =~ /\.k?o$/) {
- # Add kernel modules.
- unshift @todo, "$t/$ent";
- }
- }
- closedir(DIR);
- } else {
- # It's an explicit kernel module.
- push @KMODS, $t;
- }
- }
-
- if ($#KABIS < 0) {
- print STDERR "$modename: you must specify at least one KABI\n";
- usage(1);
- }
-
- my %dsyms;
-
- if (-f "$LINUX/Module.symvers") {
- # Look up the version numbers in Module.symvers.
- open(VERS, "<$LINUX/Module.symvers") or
- die "$modename: cannot read \`$LINUX/Module.symvers': $!\n";
- while ($_ = <VERS>) {
- if (/^(0x[0-9a-f]+)\s+(\S+)/) {
- $dsyms{$2} = hex($1);
- }
- }
- close(VERS);
- } else {
- # Read in all the non-versioned symbols defined by this kernel.
- open(MAP, "<$LINUX/System.map") or
- die "$modename: cannot read \`$LINUX/System.map': $!\n";
- while ($_ = <MAP>) {
- if (/^[0-9a-fA-F]*\s+[ABCDGIRSTW]+\s*(.*\S)\s*$/) {
- $dsyms{$1} = 0;
- }
- }
- close(MAP);
- }
-
- # Find the symbols for the installed modules, too.
- foreach my $mod (@KMODS) {
- open(NM, "nm $mod |") or
- die "$modename: cannot execute \`nm $mod': $!\n";
- while ($_ = <NM>) {
- if (/^[0-9a-fA-F]*\s+[ABCDGIRSTW]+\s*(.*\S)\s*$/) {
- $dsyms{$1} = 0;
- }
- }
- close(NM);
- }
-
- # Also get the kernel version.
- my $kver = kernel_version();
-
- # Read each kabi file and print out the ones that are plausible
- # matches.
- foreach my $kabi (@KABIS) {
- open(KABI, "<$kabi") or
- die "$modename: cannot read \`$kabi': $!\n";
- my $possible = 1;
- while ($possible && ($_ = <KABI>)) {
- if (/^\s*#/) {
- # Skip comments.
- } elsif (/^\s*kver\s+(.*\S)\s*$/) {
- my $modkver = $1;
- if ($modkver ne $kver) {
- print STDERR "$kabi:$.: module version \`$modkver' differs from \`$kver'\n"
- if $VERBOSE;
- $possible = 0;
- }
- } elsif (/^\s*usym\s+(\S+)\s*(\S+)?\s*$/) {
- my ($modsym, $symver) = ($1, hex($2));
- if (!defined $dsyms{$modsym}) {
- print STDERR "$kabi:$.: module symbol \`$modsym' is not defined\n"
- if $VERBOSE;
- $possible = 0;
- } elsif (defined $symver && $dsyms{$modsym} != 0 && $dsyms{$modsym} != $symver) {
- printf STDERR "$kabi:$.: module symbol \`$modsym' is version 0x%x, not 0x%x\n", $dsyms{$modsym}, $symver
- if $VERBOSE;
- $possible = 0;
- }
- } elsif (/^\s*(\S+)/) {
- print STDERR "$kabi:$.: unrecognized descriptor line \`$1'\n";
- }
- }
- close(KABI);
-
- if ($possible) {
- # We got a match.
- print "$kabi\n";
- }
- }
-
-} else {
- print STDERR "$progname: unrecognized mode \`$MODE'\n";
- usage(1);
-}
-
-
-# Read the kernel version from its built source tree.
-sub kernel_version
-{
- my $verfile = "$LINUX/include/linux/version.h";
- open(VERSION, "<$verfile") or
- die "$modename: cannot read \`$verfile': $!\n";
-
- my $ver;
- while ($_ = <VERSION>) {
- if (/^\s*#\s*define\s+UTS_RELEASE\s+"(.*)"\s*$/) {
- $ver = $1;
- last;
- }
- }
-
- close(VERSION);
-
- if (!defined $ver) {
- die "$modename: cannot find UTS_RELEASE in \`$verfile'\n";
- }
- return "linux-$ver";
-}
-
-exit 0;
git://git.whamcloud.com / fs / lustre-release.git / commitdiff