solenv/bin/addsym.awk

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  31
  32 # Add symbol patterns _ZTI* and _ZTS* to the global section of version UDK_3_0_0
  33 # (and if that version is not yet present, add it).  For C++ exception handling
  34 # to work across libraries, it is important that all libraries use those symbols
  35 # with the same version name.
  36 #
  37 # The below code fails with 'perverted' mapfiles (using a strange line layout,
  38 # or containing version UDK_3_0_0 without a global section, ...).
  39
  40 BEGIN { state = 0 }
  41 END {
  42     if (state == 0) {
  43         print "# Weak RTTI symbols for C++ exceptions:"
  44         print "UDK_3_0_0 {"
  45         print "\tglobal:"
  46         print "\t_ZTI*; _ZTS*;"
  47         print "};"
  48     }
  49 }
  50 state == 2 {
  51     print "        _ZTI*; _ZTS*; # weak RTTI symbols for C++ exceptions"
  52     state = 3
  53 }
  54 # #i66636# - ???
  55 /^[\t ]*UDK_3_0_0[\t ]*\{/ { state = 1 }
  56 /^[\t ]*global[\t ]*:/ && state == 1 { state = 2 }
  57 { print }