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   next;
  16 }
  17 $1 == "}" {
  18   printf "/* end %s */\n", thislib;
  19   next;
  20 }
  21
  22 $2 == "=" {
  23   old = $1; new = $3;
  24   gsub(/[^A-Za-z0-9_    ]/, "_");
  25   oldid = $1; newid = $3;
  26
  27   printf "#define ABI_%s_%s\tABI_%s_%s\n", libid, oldid, libid, newid;
  28   printf "#define VERSION_%s_%s\t%s\n", libid, oldid, new;
  29   next;
  30 }
  31
  32 {
  33   vers = $1;
  34   gsub(/[^A-Za-z0-9_    ]/, "_");
  35   versid = $1;
  36
  37   printf "#define ABI_%s_%s\t%d\t/* support %s */\n", libid, versid, ++n, vers;
  38   printf "#define VERSION_%s_%s\t%s\n", libid, versid, vers;
  39   next;
  40 }
  41
  42 END {
  43   print "\n#endif /* abi-versions.h */";
  44 }