OpenCores
URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [mkmap-flat.awk] - Blame information for rev 856

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 38 julius
# Generate a flat list of symbols to export.
2
#       Copyright (C) 2007  Free Software Foundation, Inc.
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
BEGIN {
22
  state = "nm";
23
  excluding = 0;
24
  if (leading_underscore)
25
    prefix = "_";
26
  else
27
    prefix = "";
28
}
29
 
30
# Remove comment and blank lines.
31
/^ *#/ || /^ *$/ {
32
  next;
33
}
34
 
35
# We begin with nm input.  Collect the set of symbols that are present
36
# so that we can elide undefined symbols.
37
 
38
state == "nm" && /^%%/ {
39
  state = "ver";
40
  next;
41
}
42
 
43
state == "nm" && ($1 == "U" || $2 == "U") {
44
  next;
45
}
46
 
47
state == "nm" && NF == 3 {
48
  def[$3] = 1;
49
  next;
50
}
51
 
52
state == "nm" {
53
  next;
54
}
55
 
56
# Now we process a simplified variant of the Solaris symbol version
57
# script.  We have one symbol per line, no semicolons, simple markers
58
# for beginning and ending each section, and %inherit markers for
59
# describing version inheritence.  A symbol may appear in more than
60
# one symbol version, and the last seen takes effect.
61
# The magic version name '%exclude' causes all the symbols given that
62
# version to be dropped from the output (unless a later version overrides).
63
 
64
NF == 3 && $1 == "%inherit" {
65
  next;
66
}
67
 
68
NF == 2 && $2 == "{" {
69
  if ($1 == "%exclude")
70
    excluding = 1;
71
  next;
72
}
73
 
74
$1 == "}" {
75
  excluding = 0;
76
  next;
77
}
78
 
79
{
80
  sym = prefix $1;
81
  if (excluding)
82
    delete export[sym];
83
  else
84
    export[sym] = 1;
85
  next;
86
}
87
 
88
END {
89
  for (sym in export)
90
    if (def[sym])
91
      print sym;
92
}

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.