scripts/gen-libc-modules.awk

   1 # Generate a header file that defines the MODULE_* macros for each library and
   2 # module we build in glibc.  The library names are pulled in from soversions.i
   3 # and the additional modules are passed in the BUILDLIST variable.
   4 BEGIN {
   5   # BUILDLIST is set from the build-list variable in Makeconfig and is a space
   6   # separated list of non-library modules that we build in glibc.
   7   num = split (buildlist, libs, " ")
   8   # Separate the built modules from the libraries.
   9   libs[++num] = "LIBS_BEGIN"
  10 }
  11
  12 # Skip over comments.
  13 $1 == "#" {
  14   next
  15 }
  16
  17 # We have only one special case in soversions.i parsing, which is to replace ld
  18 # with rtld since that's what we call it throughout the sources.
  19 match (FILENAME, ".*soversions.i") {
  20   name = $2
  21   if (name == "ld")
  22     name = "rtld"
  23
  24   # Library names are not duplicated in soversions.i.
  25   libs[++num] = name
  26 }
  27
  28 # Finally, print out the header file.
  29 END {
  30   printf ("/* AUTOGENERATED BY gen-libc-modules.awk, DO NOT EDIT.  */\n\n")
  31   for (l in libs) {
  32     printf ("#define MODULE_%s %d\n", libs[l], l)
  33   }
  34 }