* config/interix.opt: New.

[pf3gnuchains/gcc-fork.git] / gcc / mkmap-flat.awk

diff --git a/gcc/mkmap-flat.awk b/gcc/mkmap-flat.awk
index 4ff5bf5..4afa69f 100644 (file)
--- a/gcc/mkmap-flat.awk
+++ b/gcc/mkmap-flat.awk
@@ -1,11 +1,12 @@
 # Generate a flat list of symbols to export.
+#      Copyright (C) 2007, 2008, 2009  Free Software Foundation, Inc.
 #      Contributed by Richard Henderson <rth@cygnus.com>
 #
 # This file is part of GCC.
 #
 # GCC is free software; you can redistribute it and/or modify it under
 # the terms of the GNU General Public License as published by the Free
-# Software Foundation; either version 2, or (at your option) any later
+# Software Foundation; either version 3, or (at your option) any later
 # version.
 #
 # GCC is distributed in the hope that it will be useful, but WITHOUT
@@ -14,12 +15,21 @@
 # License for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with GCC; see the file COPYING.  If not, write to the Free
-# Software Foundation, 59 Temple Place - Suite 330, Boston MA
-# 02111-1307, USA.
+# along with GCC; see the file COPYING3.  If not see
+# <http://www.gnu.org/licenses/>.
+
+# Options:
+#   "-v leading_underscore=1" : Symbols in map need leading underscore.
+#   "-v pe_dll=1"             : Create .DEF file for Windows PECOFF
+#                               DLL link instead of map file.
 
 BEGIN {
   state = "nm";
+  excluding = 0;
+  if (leading_underscore)
+    prefix = "_";
+  else
+    prefix = "";
 }
 
 # Remove comment and blank lines.
@@ -51,28 +61,43 @@ state == "nm" {
 # Now we process a simplified variant of the Solaris symbol version
 # script.  We have one symbol per line, no semicolons, simple markers
 # for beginning and ending each section, and %inherit markers for
-# describing version inheritence.  A symbol may appear in more than
+# describing version inheritance.  A symbol may appear in more than
 # one symbol version, and the last seen takes effect.
+# The magic version name '%exclude' causes all the symbols given that
+# version to be dropped from the output (unless a later version overrides).
 
 NF == 3 && $1 == "%inherit" {
   next;
 }
 
 NF == 2 && $2 == "{" {
+  if ($1 == "%exclude")
+    excluding = 1;
   next;
 }
 
 $1 == "}" {
+  excluding = 0;
   next;
 }
 
 {
-  export[$1] = 1;
+  sym = prefix $1;
+  if (excluding)
+    delete export[sym];
+  else
+    export[sym] = 1;
   next;
 }
 
 END {
+
+  if (pe_dll) {
+    print "LIBRARY " pe_dll;
+    print "EXPORTS";
+  }
+
   for (sym in export)
-    if (def[sym])
+    if (def[sym] || (pe_dll && def["_" sym]))
       print sym;
 }