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, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
19 # This Awk script reads in the option records generated from
20 # opt-gather.awk, combines the flags of duplicat options and generates a
23 # This program uses functions from opt-functions.awk
25 # Usage: awk -f opt-functions.awk -f optc-gen.awk \
26 # [-v header_name=header.h] < inputfile > options.c
34 # Default the name of header created from opth-gen.awk to options.h
35 if (header_name == "") header_name="options.h"
38 # Collect the text and flags of each option into an array
40 if ($1 == "Language") {
45 name = opt_args("Mask", $1)
55 # Dump that array of options into a C file.
57 print "/* This file is auto-generated by opts.sh. */"
59 n_headers = split(header_name, headers, " ")
60 for (i = 1; i <= n_headers; i++)
61 print "#include " quote headers[i] quote
62 print "#include " quote "opts.h" quote
63 print "#include " quote "intl.h" quote
66 for (i = 0; i < n_opts; i++) {
67 name = var_name(flags[i]);
71 if (flag_set_p("VarExists", flags[i]))
74 init = opt_args("Init", flags[i])
77 else if (name in var_seen)
80 print "/* Set by -" opts[i] "."
81 print " " help[i] " */"
82 print var_type(flags[i]) name init ";"
89 print "/* Local state variables. */"
90 for (i = 0; i < n_opts; i++) {
91 name = static_var(opts[i], flags[i]);
93 print "static " var_type(flags[i]) name ";"
97 print "const char * const lang_names[] =\n{"
98 for (i = 0; i < n_langs; i++) {
99 macros[i] = "CL_" langs[i]
100 gsub( "[^A-Za-z0-9_]", "X", macros[i] )
101 s = substr(" ", length (macros[i]))
102 print " " quote langs[i] quote ","
106 print "const unsigned int cl_options_count = N_OPTS;\n"
108 print "const struct cl_option cl_options[] =\n{"
110 for (i = 0; i < n_opts; i++)
111 back_chain[i] = "N_OPTS";
113 for (i = 0; i < n_opts; i++) {
114 # Combine the flags of identical switches. Switches
115 # appear many times if they are handled by many front
117 while( i + 1 != n_opts && opts[i] == opts[i + 1] ) {
118 flags[i + 1] = flags[i] " " flags[i + 1];
122 len = length (opts[i]);
123 enum = "OPT_" opts[i]
124 if (opts[i] == "finline-limit=")
126 gsub ("[^A-Za-z0-9]", "_", enum)
128 # If this switch takes joined arguments, back-chain all
129 # subsequent switches to it for which it is a prefix. If
130 # a later switch S is a longer prefix of a switch T, T
131 # will be back-chained to S in a later iteration of this
132 # for() loop, which is what we want.
133 if (flag_set_p("Joined.*", flags[i])) {
134 for (j = i + 1; j < n_opts; j++) {
135 if (substr (opts[j], 1, len) != opts[i])
137 back_chain[j] = enum;
141 s = substr(" ", length (opts[i]))
148 hlp = quote help[i] quote;
150 printf(" { %c-%s%c,\n %s,\n %s, %u,\n",
151 quote, opts[i], quote, hlp, back_chain[i], len)
152 condition = opt_args("Condition", flags[i])
153 cl_flags = switch_flags(flags[i])
160 condition, cl_flags, cl_flags)
162 printf(" %s,\n", cl_flags)
163 printf(" %s, %s }%s\n", var_ref(opts[i], flags[i]),
164 var_set(flags[i]), comma)