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authorobrien <obrien@FreeBSD.org>2002-02-01 18:16:02 +0000
committerobrien <obrien@FreeBSD.org>2002-02-01 18:16:02 +0000
commitc9ab9ae440a8066b2c2b85b157b1fdadcf09916a (patch)
tree086d9d6c8fbd4fc8fe4495059332f66bc0f8d12b /contrib/gcc/mkmap-flat.awk
parent2ecfd8bd04b63f335c1ec6295740a4bfd97a4fa6 (diff)
downloadFreeBSD-src-c9ab9ae440a8066b2c2b85b157b1fdadcf09916a.zip
FreeBSD-src-c9ab9ae440a8066b2c2b85b157b1fdadcf09916a.tar.gz
Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0.
These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.
Diffstat (limited to 'contrib/gcc/mkmap-flat.awk')
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diff --git a/contrib/gcc/mkmap-flat.awk b/contrib/gcc/mkmap-flat.awk
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+# Generate a flat list of symbols to export.
+# 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
+# version.
+#
+# 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 GCC; see the file COPYING. If not, write to the Free
+# Software Foundation, 59 Temple Place - Suite 330, Boston MA
+# 02111-1307, USA.
+
+BEGIN {
+ state = "nm";
+}
+
+# Remove comment and blank lines.
+/^ *#/ || /^ *$/ {
+ next;
+}
+
+# We begin with nm input. Collect the set of symbols that are present
+# so that we can elide undefined symbols.
+
+state == "nm" && /^%%/ {
+ state = "ver";
+ next;
+}
+
+state == "nm" && ($1 == "U" || $2 == "U") {
+ next;
+}
+
+state == "nm" && NF == 3 {
+ def[$3] = 1;
+ next;
+}
+
+state == "nm" {
+ next;
+}
+
+# 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
+# one symbol version, and the last seen takes effect.
+
+NF == 3 && $1 == "%inherit" {
+ next;
+}
+
+NF == 2 && $2 == "{" {
+ next;
+}
+
+$1 == "}" {
+ next;
+}
+
+{
+ export[$1] = 1;
+ next;
+}
+
+END {
+ for (sym in export)
+ if (def[sym])
+ print sym;
+}
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