* fold-const.c (fold_convert): When casting an expression to void,

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

diff --git a/gcc/mkmap-flat.awk b/gcc/mkmap-flat.awk
index de22d7c..09f7cce 100644 (file)
--- a/gcc/mkmap-flat.awk
+++ b/gcc/mkmap-flat.awk
@@ -1,25 +1,30 @@
 # Generate a flat list of symbols to export.
 #      Contributed by Richard Henderson <rth@cygnus.com>
 #
-# This file is part of GNU CC.
+# This file is part of GCC.
 #
-# GNU CC 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 version.
+# 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
+# version.
 #
-# GNU CC is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
+# GCC is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+# or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+# License for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with GNU CC; 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 COPYING.  If not, write to the Free
+# Software Foundation, 51 Franklin Street, Fifth Floor, Boston MA
+# 02110-1301, USA.
 
 BEGIN {
   state = "nm";
+  excluding = 0;
+  if (leading_underscore)
+    prefix = "_";
+  else
+    prefix = "";
 }
 
 # Remove comment and blank lines.
@@ -53,21 +58,30 @@ state == "nm" {
 # for beginning and ending each section, and %inherit markers for
 # describing version inheritence.  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;
 }