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git.proxmox.com Git - pve-kernel.git/blob - debian/scripts/abi-check
7 # to catch multiple abi-prev-* files being passed in
8 die "invalid value for skipabi parameter\n"
9 if (defined($skipabi) && $skipabi !~ /^[01]$/);
11 $abinew =~ /abi-(.*)/;
13 $abiold =~ /abi-prev-(.*)/;
23 print "II: Checking ABI...\n";
26 print "WW: Explicitly asked to ignore ABI, running in no-fail mode\n";
32 if ($prev_abistr ne $abistr) {
33 print "II: Different ABI's, running in no-fail mode\n";
38 if (not -f
"$abinew" or not -f
"$abiold") {
39 print "EE: Previous or current ABI file missing!\n";
40 print " $abinew\n" if not -f
"$abinew";
41 print " $abiold\n" if not -f
"$abiold";
43 # Exit if the ABI files are missing, but return status based on whether
44 # skip ABI was indicated.
45 if ("$abiskip" eq "1") {
57 # See if we have any ignores
59 print " Reading symbols/modules to ignore...";
61 for $file ("abi-blacklist") {
63 open(IGNORE
, "< $file") or
64 die "Could not open $file";
67 if ($_ =~ m/M: (.*)/) {
68 $modules_ignore{$1} = 1;
70 $symbols_ignore{$_} = 1;
77 print "read $ignore symbols/modules.\n";
82 die "Missing module name in is_ignored()" if not defined($mod);
83 die "Missing symbol name in is_ignored()" if not defined($sym);
85 if (defined($symbols_ignore{$sym}) or defined($modules_ignore{$mod})) {
92 print " Reading new symbols ($abistr)...";
94 open(NEW
, "< $abinew") or
95 die "Could not open $abinew";
98 m/^(\S+)\s(.+)\s(0x[0-9a-f]+)\s(.+)$/;
99 $symbols{$4}{'type'} = $1;
100 $symbols{$4}{'loc'} = $2;
101 $symbols{$4}{'hash'} = $3;
102 $module_syms{$2} = 0;
106 print "read $count symbols.\n";
108 # Now the old symbols, checking for missing ones
109 print " Reading old symbols...";
111 open(OLD
, "< $abiold") or
112 die "Could not open $abiold";
115 m/^(\S+)\s(.+)\s(0x[0-9a-f]+)\s(.+)$/;
116 $symbols{$4}{'old_type'} = $1;
117 $symbols{$4}{'old_loc'} = $2;
118 $symbols{$4}{'old_hash'} = $3;
123 print "read $count symbols.\n";
125 print "II: Checking for missing symbols in new ABI...";
127 foreach $sym (keys(%symbols)) {
128 if (!defined($symbols{$sym}{'type'})) {
129 print "\n" if not $count;
130 printf(" MISS : %s%s\n", $sym,
131 is_ignored
($symbols{$sym}{'old_loc'}, $sym) ?
" (ignored)" : "");
132 $count++ if !is_ignored
($symbols{$sym}{'old_loc'}, $sym);
136 print "found $count missing symbols\n";
138 print "$EE Symbols gone missing (what did you do!?!)\n";
143 print "II: Checking for new symbols in new ABI...";
145 foreach $sym (keys(%symbols)) {
146 if (!defined($symbols{$sym}{'old_type'})) {
147 print "\n" if not $count;
148 print " NEW : $sym\n";
153 print "found $count new symbols\n";
155 print "WW: Found new symbols. Not recommended unless ABI was bumped\n";
158 print "II: Checking for changes to ABI...\n";
161 my $changed_type = 0;
162 my $changed_hash = 0;
163 foreach $sym (keys(%symbols)) {
164 if (!defined($symbols{$sym}{'old_type'}) or
165 !defined($symbols{$sym}{'type'})) {
169 # Changes in location don't hurt us, but log it anyway
170 if ($symbols{$sym}{'loc'} ne $symbols{$sym}{'old_loc'}) {
171 printf(" MOVE : %-40s : %s => %s\n", $sym, $symbols{$sym}{'old_loc'},
172 $symbols{$sym}{'loc'});
176 # Changes to export type are only bad if new type isn't
177 # EXPORT_SYMBOL. Changing things to GPL are bad.
178 if ($symbols{$sym}{'type'} ne $symbols{$sym}{'old_type'}) {
179 printf(" TYPE : %-40s : %s => %s%s\n", $sym, $symbols{$sym}{'old_type'}.
180 $symbols{$sym}{'type'}, is_ignored
($symbols{$sym}{'loc'}, $sym)
181 ?
" (ignored)" : "");
182 $changed_type++ if $symbols{$sym}{'type'} ne "EXPORT_SYMBOL"
183 and !is_ignored
($symbols{$sym}{'loc'}, $sym);
186 # Changes to the hash are always bad
187 if ($symbols{$sym}{'hash'} ne $symbols{$sym}{'old_hash'}) {
188 printf(" HASH : %-40s : %s => %s%s\n", $sym, $symbols{$sym}{'old_hash'},
189 $symbols{$sym}{'hash'}, is_ignored
($symbols{$sym}{'loc'}, $sym)
190 ?
" (ignored)" : "");
191 $changed_hash++ if !is_ignored
($symbols{$sym}{'loc'}, $sym);
192 $module_syms{$symbols{$sym}{'loc'}}++;
196 print "WW: $moved symbols changed location\n" if $moved;
197 print "$EE $changed_type symbols changed export type and weren't ignored\n" if $changed_type;
198 print "$EE $changed_hash symbols changed hash and weren't ignored\n" if $changed_hash;
200 $errors++ if $changed_hash or $changed_type;
202 print "II: Module hash change summary...\n";
203 foreach $mod (sort { $module_syms{$b} <=> $module_syms{$a} } keys %module_syms) {
204 next if ! $module_syms{$mod};
205 printf(" %-40s: %d\n", $mod, $module_syms{$mod});