scripts/abi-versions.awk

   1 # Script to generate <abi-versions.h> header file from Versions.all list.
   2 # See include/shlib-compat.h comments for explanation.
   3
   4 BEGIN {
   5   print "/* This file is automatically generated by abi-versions.awk.";
   6   print "   It defines symbols used by shlib-compat.h, which see.  */";
   7   print "\n#ifndef _ABI_VERSIONS_H\n#define _ABI_VERSIONS_H";
   8 }
   9
  10 NF == 2 && $2 == "{" {
  11   thislib = $1;
  12   gsub(/[^A-Za-z0-9_    ]/, "_"); libid = $1;
  13   printf "\n/* start %s */\n", thislib;
  14   n = 0;
  15   start = 0;
  16   next;
  17 }
  18 $1 == "}" {
  19   printf "/* end %s */\n", thislib;
  20   next;
  21 }
  22
  23 $2 == "=" {
  24   old = $1; new = $3;
  25   gsub(/[^A-Za-z0-9_    ]/, "_");
  26   oldid = $1; newid = $3;
  27
  28   printf "#define ABI_%s_%s\tABI_%s_%s\n", libid, oldid, libid, newid;
  29   printf "#define VERSION_%s_%s\t%s\n", libid, oldid, new;
  30
  31   next;
  32 }
  33
  34 {
  35   vers = $1;
  36   gsub(/[^A-Za-z0-9_    ]/, "_");
  37   versid = $1;
  38
  39   printf "#define ABI_%s_%s\t%d\t/* support %s */\n", libid, versid, ++n, vers;
  40   printf "#define VERSION_%s_%s\t%s\n", libid, versid, vers;
  41   next;
  42 }
  43
  44 END {
  45   print "\n#endif /* abi-versions.h */";
  46 }