|
111
|
1 # Generate a flat list of symbols to export.
|
|
145
|
2 # Copyright (C) 2007-2020 Free Software Foundation, Inc.
|
|
111
|
3 # Contributed by Richard Henderson <rth@cygnus.com>
|
|
|
4 #
|
|
|
5 # This file is part of GCC.
|
|
|
6 #
|
|
|
7 # GCC is free software; you can redistribute it and/or modify it under
|
|
|
8 # the terms of the GNU General Public License as published by the Free
|
|
|
9 # Software Foundation; either version 3, or (at your option) any later
|
|
|
10 # version.
|
|
|
11 #
|
|
|
12 # GCC is distributed in the hope that it will be useful, but WITHOUT
|
|
|
13 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
|
|
14 # or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
|
|
|
15 # License for more details.
|
|
|
16 #
|
|
|
17 # You should have received a copy of the GNU General Public License
|
|
|
18 # along with GCC; see the file COPYING3. If not see
|
|
|
19 # <http://www.gnu.org/licenses/>.
|
|
|
20
|
|
|
21 # Options:
|
|
|
22 # "-v leading_underscore=1" : Symbols in map need leading underscore.
|
|
|
23 # "-v pe_dll=1" : Create .DEF file for Windows PECOFF
|
|
|
24 # DLL link instead of map file.
|
|
|
25
|
|
|
26 BEGIN {
|
|
|
27 state = "nm";
|
|
|
28 excluding = 0;
|
|
|
29 if (leading_underscore)
|
|
|
30 prefix = "_";
|
|
|
31 else
|
|
|
32 prefix = "";
|
|
|
33 }
|
|
|
34
|
|
|
35 # Remove comment and blank lines.
|
|
|
36 /^ *#/ || /^ *$/ {
|
|
|
37 next;
|
|
|
38 }
|
|
|
39
|
|
|
40 # We begin with nm input. Collect the set of symbols that are present
|
|
|
41 # so that we can elide undefined symbols.
|
|
|
42
|
|
|
43 state == "nm" && /^%%/ {
|
|
|
44 state = "ver";
|
|
|
45 next;
|
|
|
46 }
|
|
|
47
|
|
|
48 state == "nm" && ($1 == "U" || $2 == "U") {
|
|
|
49 next;
|
|
|
50 }
|
|
|
51
|
|
|
52 state == "nm" && NF == 3 {
|
|
|
53 def[$3] = 1;
|
|
|
54 next;
|
|
|
55 }
|
|
|
56
|
|
|
57 state == "nm" {
|
|
|
58 next;
|
|
|
59 }
|
|
|
60
|
|
|
61 # Now we process a simplified variant of the Solaris symbol version
|
|
|
62 # script. We have one symbol per line, no semicolons, simple markers
|
|
|
63 # for beginning and ending each section, and %inherit markers for
|
|
|
64 # describing version inheritance. A symbol may appear in more than
|
|
|
65 # one symbol version, and the last seen takes effect.
|
|
|
66 # The magic version name '%exclude' causes all the symbols given that
|
|
|
67 # version to be dropped from the output (unless a later version overrides).
|
|
|
68
|
|
|
69 NF == 3 && $1 == "%inherit" {
|
|
|
70 next;
|
|
|
71 }
|
|
|
72
|
|
|
73 NF == 2 && $2 == "{" {
|
|
|
74 if ($1 == "%exclude")
|
|
|
75 excluding = 1;
|
|
|
76 next;
|
|
|
77 }
|
|
|
78
|
|
|
79 $1 == "}" {
|
|
|
80 excluding = 0;
|
|
|
81 next;
|
|
|
82 }
|
|
|
83
|
|
|
84 {
|
|
|
85 sym = prefix $1;
|
|
|
86 if (excluding)
|
|
|
87 delete export[sym];
|
|
|
88 else
|
|
|
89 export[sym] = 1;
|
|
|
90 next;
|
|
|
91 }
|
|
|
92
|
|
|
93 END {
|
|
|
94
|
|
|
95 if (pe_dll) {
|
|
|
96 print "LIBRARY " pe_dll;
|
|
|
97 print "EXPORTS";
|
|
|
98 }
|
|
|
99
|
|
|
100 for (sym in export)
|
|
|
101 if (def[sym] || (pe_dll && def["_" sym]))
|
|
|
102 print sym;
|
|
|
103 }
|
