Daily bump.
[official-gcc.git] / gcc / mkmap-flat.awk
blob4ff5bf5f05dee37f73eba7fd81e3b0777e8fb1be
1 # Generate a flat list of symbols to export.
2 # Contributed by Richard Henderson <rth@cygnus.com>
4 # This file is part of GCC.
6 # GCC is free software; you can redistribute it and/or modify it under
7 # the terms of the GNU General Public License as published by the Free
8 # Software Foundation; either version 2, or (at your option) any later
9 # version.
11 # GCC is distributed in the hope that it will be useful, but WITHOUT
12 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
13 # or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
14 # License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with GCC; see the file COPYING. If not, write to the Free
18 # Software Foundation, 59 Temple Place - Suite 330, Boston MA
19 # 02111-1307, USA.
21 BEGIN {
22 state = "nm";
25 # Remove comment and blank lines.
26 /^ *#/ || /^ *$/ {
27 next;
30 # We begin with nm input. Collect the set of symbols that are present
31 # so that we can elide undefined symbols.
33 state == "nm" && /^%%/ {
34 state = "ver";
35 next;
38 state == "nm" && ($1 == "U" || $2 == "U") {
39 next;
42 state == "nm" && NF == 3 {
43 def[$3] = 1;
44 next;
47 state == "nm" {
48 next;
51 # Now we process a simplified variant of the Solaris symbol version
52 # script. We have one symbol per line, no semicolons, simple markers
53 # for beginning and ending each section, and %inherit markers for
54 # describing version inheritence. A symbol may appear in more than
55 # one symbol version, and the last seen takes effect.
57 NF == 3 && $1 == "%inherit" {
58 next;
61 NF == 2 && $2 == "{" {
62 next;
65 $1 == "}" {
66 next;
70 export[$1] = 1;
71 next;
74 END {
75 for (sym in export)
76 if (def[sym])
77 print sym;