smatch_scripts/db/fill_db_function_ptr.pl

   1 #!/usr/bin/perl -w
   2
   3 use strict;
   4 use DBI;
   5
   6 my $warns = shift;
   7
   8 if (!defined($warns)) {
   9     print "usage:  $0 <warns.txt>\n";
  10     exit(1);
  11 }
  12
  13 my $db = DBI->connect("dbi:SQLite:smatch_db.sqlite", "", "", {RaiseError => 1, AutoCommit => 0});
  14 $db->do("PRAGMA synchronous = OFF");
  15 $db->do("PRAGMA cache_size = 800000");
  16
  17 $db->do("delete from function_ptr;");
  18
  19 open(WARNS, "<$warns");
  20 while (<WARNS>) {
  21     if (!($_ =~ /info: sets_fn_ptr /)) {
  22         next;
  23     }
  24
  25     # kernel/ksysfs.c +87 (null)(87) info: sets_fn_ptr '(struct kobj_attribute)->show' 'profiling_show'
  26
  27     s/\n//;
  28
  29     my ($file_and_line, $file, $dummy, $struct_bit, $func, $ptr);
  30     ($file_and_line, $dummy, $dummy, $dummy, $struct_bit, $ptr, $func) = split(/ /, $_);
  31     ($file, $dummy) = split(/:/, $file_and_line);
  32
  33     if (!defined($func)) {
  34         next;
  35     }
  36     if (!($struct_bit =~ /^'\(struct$/)) {
  37         next;
  38     }
  39     if (!($func =~ /^'[\w_]+'$/)) {
  40         next;
  41     }
  42
  43     $struct_bit =~ s/'//;
  44     $ptr =~ s/'//;
  45     $func =~ s/'//g;
  46
  47     $db->do("insert into function_ptr values ('$file', '$func', '$struct_bit $ptr')\n");
  48 }
  49 $db->commit();
  50 $db->disconnect();