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OBS-URL: https://build.opensuse.org/package/show/Kernel:HEAD/kernel-source?expand=0&rev=7069

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Michal Marek 2011-10-04 05:01:26 +00:00 committed by Git OBS Bridge
parent 7c86fc1bcd
commit 27308001ff
1 changed files with 0 additions and 131 deletions
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131
kabi.pl
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@ -1,131 +0,0 @@
#!/usr/bin/perl
use strict;
use warnings;
use Getopt::Long;
use Data::Dumper;
# ( { sym => regexp, mod => regexp, fail => 0/1 }, ... )
my @rules;
my ($opt_verbose, $opt_rules);
sub load_rules {
my $file = shift;
my $errors = 0;
xopen(my $fh, '<', $file);
while (<$fh>) {
chomp;
s/#.*//;
next if /^\s*$/;
my ($pattern, $verdict) = split(/\s+/);
my $new = {};
if (uc($verdict) eq "PASS") {
$new->{fail} = 0;
} elsif (uc($verdict) eq "FAIL") {
$new->{fail} = 1;
} else {
print STDERR "$file:$.: invalid verdict \"$verdict\", must be either PASS or FAIL.\n";
$errors++;
next;
}
# simple glob -> regexp conversion
$pattern =~ s/\*/.*/g;
$pattern =~ s/\?/./g;
$pattern =~ s/.*/^$&\$/;
if ($pattern =~ /\/|^vmlinux$/) {
$new->{mod} = $pattern;
} else {
$new->{sym} = $pattern;
}
push(@rules, $new);
}
if ($errors && !@rules) {
print STDERR "error: only garbage found in $file.\n";
exit 1;
}
close($fh);
}
sub load_symvers {
my $file = shift;
my %res;
my $errors = 0;
xopen(my $fh, '<', $file);
while (<$fh>) {
my @l = split(/\s+/);
if (@l < 3) {
print STDERR "$file:$.: unknown line\n";
$errors++;
next;
}
my $new = { crc => $l[0], mod => $l[2] };
$res{$l[1]} = $new;
}
if (!%res) {
print STDERR "error: no symvers found in $file.\n";
exit 1;
}
close($fh);
return %res;
}
my $kabi_errors = 0;
sub kabi_change {
my ($sym, $mod, $oldcrc, $newcrc) = @_;
my $fail = 1;
for my $rule (@rules) {
if ($rule->{mod} && $mod =~ $rule->{mod} ||
$rule->{sym} && $sym =~ $rule->{sym}) {
$fail = $rule->{fail};
last;
}
}
return unless $fail or $opt_verbose;
print STDERR "KABI: symbol $sym($mod) ";
if ($newcrc) {
print STDERR "changed crc from $oldcrc to $newcrc"
} else {
print STDERR "lost";
}
if ($fail) {
$kabi_errors++;
print STDERR "\n";
} else {
print STDERR " (tolerated)\n";
}
}
sub xopen {
open($_[0], $_[1], @_[2..$#_]) or die "$_[2]: $!\n";
}
my $res = GetOptions(
'verbose|v' => \$opt_verbose,
'rules|r=s' => \$opt_rules,
);
if (!$res || @ARGV != 2) {
print STDERR "Usage: $0 [--rules <rules file>] Module.symvers.old Module.symvers\n";
exit 1;
}
if (defined($opt_rules)) {
load_rules($opt_rules);
}
my %old = load_symvers($ARGV[0]);
my %new = load_symvers($ARGV[1]);
for my $sym (sort keys(%old)) {
if (!$new{$sym}) {
kabi_change($sym, $old{$sym}->{mod}, $old{$sym}->{crc}, 0);
} elsif ($old{$sym}->{crc} ne $new{$sym}->{crc}) {
kabi_change($sym, $new{$sym}->{mod}, $old{$sym}->{crc},
$new{$sym}->{crc});
}
}
if ($kabi_errors) {
print STDERR "KABI: aborting due to kabi changes.\n";
exit 1;
}
exit 0;