nptl_db/db-symbols.awk

   1 # This script processes the output of 'readelf -W -s' on the libpthread.so
   2 # we've just built.  It checks for all the symbols used in td_symbol_list.
   3
   4 BEGIN {
   5 %define DB_RTLD_VARIABLE(name) /* Nothing. */
   6 %define DB_MAIN_VARIABLE(name) /* Nothing. */
   7 %define DB_LOOKUP_NAME(idx, name)               required[STRINGIFY (name)] = 1;
   8 %define DB_LOOKUP_NAME_TH_UNIQUE(idx, name)     th_unique[STRINGIFY (name)] = 1;
   9 %include "db-symbols.h"
  10
  11    in_symtab = 0;
  12 }
  13
  14 /Symbol table '.symtab'/ { in_symtab=1; next }
  15 NF == 0 { in_symtab=0; next }
  16
  17 !in_symtab { next }
  18
  19 NF >= 8 && $7 != "UND" { seen[$NF] = 1 }
  20
  21 END {
  22   status = 0;
  23
  24   for (s in required) {
  25     if (s in seen) print s, "ok";
  26     else {
  27       status = 1;
  28       print s, "***MISSING***";
  29     }
  30   }
  31
  32   any = "";
  33   for (s in th_unique) {
  34     if (s in seen) {
  35       any = s;
  36       break;
  37     }
  38   }
  39   if (any)
  40     print "th_unique:", any;
  41   else {
  42     status = 1;
  43     print "th_unique:", "***MISSING***";
  44   }
  45
  46   exit(status);
  47 }