* flow.c (recompute_reg_usage): Make it static.

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

diff --git a/gcc/mkmap-flat.awk b/gcc/mkmap-flat.awk
index 4ff5bf5..09f7cce 100644 (file)
--- a/gcc/mkmap-flat.awk
+++ b/gcc/mkmap-flat.awk
@@ -15,11 +15,16 @@
 #
 # 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.
+# 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;
 }