1 # Copyright (C) 2003,2004 Free Software Foundation, Inc.
2 # Contributed by Kelley Cook, June 2004.
3 # Original code from Neil Booth, May 2003.
5 # This program is free software; you can redistribute it and/or modify it
6 # under the terms of the GNU General Public License as published by the
7 # Free Software Foundation; either version 2, or (at your option) any
10 # This program is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 # GNU General Public License for more details.
15 # You should have received a copy of the GNU General Public License
16 # along with this program; if not, write to the Free Software
17 # Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 # This Awk script reads in the option records generated from
20 # opt-gather.awk, combines the flags of duplicate options and generates a
23 # This program uses functions from opt-functions.awk
24 # Usage: awk -f opt-functions.awk -f opth-gen.awk < inputfile > options.h
34 # Collect the text and flags of each option into an array
36 if ($1 == "Language") {
48 # Dump out an enumeration into a .h file.
49 # Combine the flags of duplicate options.
51 print "/* This file is auto-generated by opts.sh. */"
53 print "#ifndef OPTIONS_H"
54 print "#define OPTIONS_H"
56 print "extern int target_flags;"
58 for (i = 0; i < n_opts; i++) {
59 name = var_name(flags[i]);
63 print "/* Set by -" opts[i] "."
64 print " " help[i] " */"
65 print "extern int " name ";"
71 for (i = 0; i < n_opts; i++) {
72 name = opt_args("Mask", flags[i])
73 if (name != "" && !flag_set_p("MaskExists", flags[i]))
74 print "#define MASK_" name " (1 << " masknum++ ")"
77 print "#error too many target masks"
80 for (i = 0; i < n_opts; i++) {
81 name = opt_args("Mask", flags[i])
82 if (name != "" && !flag_set_p("MaskExists", flags[i]))
83 print "#define TARGET_" name \
84 " ((target_flags & MASK_" name ") != 0)"
88 for (i = 0; i < n_opts; i++) {
89 opt = opt_args("InverseMask", flags[i])
91 print "#define TARGET_" nth_arg(1, opt) \
92 " ((target_flags & MASK_" nth_arg(0, opt) ") == 0)"
96 for (i = 0; i < n_langs; i++) {
97 macros[i] = "CL_" langs[i]
98 gsub( "[^A-Za-z0-9_]", "X", macros[i] )
99 s = substr(" ", length (macros[i]))
100 print "#define " macros[i] s " (1 << " i ")"
104 print "enum opt_code"
107 for (i = 0; i < n_opts; i++)
108 back_chain[i] = "N_OPTS";
110 for (i = 0; i < n_opts; i++) {
111 # Combine the flags of identical switches. Switches
112 # appear many times if they are handled by many front
114 while( i + 1 != n_opts && opts[i] == opts[i + 1] ) {
115 flags[i + 1] = flags[i] " " flags[i + 1];
119 len = length (opts[i]);
120 enum = "OPT_" opts[i]
121 if (opts[i] == "finline-limit=")
123 gsub ("[^A-Za-z0-9]", "_", enum)
125 # If this switch takes joined arguments, back-chain all
126 # subsequent switches to it for which it is a prefix. If
127 # a later switch S is a longer prefix of a switch T, T
128 # will be back-chained to S in a later iteration of this
129 # for() loop, which is what we want.
130 if (flag_set_p("Joined.*", flags[i])) {
131 for (j = i + 1; j < n_opts; j++) {
132 if (substr (opts[j], 1, len) != opts[i])
134 back_chain[j] = enum;
138 s = substr(" ", length (opts[i]))
145 hlp = "N_(\"" help[i] "\")";
147 print " " enum "," s "/* -" opts[i] " */"
153 print "#endif /* OPTIONS_H */"