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
35 # Collect the text and flags of each option into an array
37 if ($1 == "Language") {
42 name = opt_args("Mask", $1)
50 extra_masks[n_extra_masks++] = name
55 # Dump out an enumeration into a .h file.
56 # Combine the flags of duplicate options.
58 print "/* This file is auto-generated by opts.sh. */"
60 print "#ifndef OPTIONS_H"
61 print "#define OPTIONS_H"
63 print "extern int target_flags;"
66 for (i = 0; i < n_opts; i++) {
67 name = var_name(flags[i]);
71 print "/* Set by -" opts[i] "."
72 print " " help[i] " */"
73 print "extern int " name ";"
78 for (i = 0; i < n_opts; i++) {
79 name = opt_args("Mask", flags[i])
80 vname = var_name(flags[i])
85 if (name != "" && !flag_set_p("MaskExists", flags[i]))
86 print "#define " mask name " (1 << " masknum[vname]++ ")"
88 for (i = 0; i < n_extra_masks; i++) {
89 print "#define MASK_" extra_masks[i] " (1 << " masknum[""]++ ")"
92 for (var in masknum) {
93 if (masknum[var] > 31) {
95 print "#error too many target masks"
97 print "#error too many masks for " var
102 for (i = 0; i < n_opts; i++) {
103 name = opt_args("Mask", flags[i])
104 vname = var_name(flags[i])
106 mask = "OPTION_MASK_"
108 vname = "target_flags"
112 if (name != "" && !flag_set_p("MaskExists", flags[i]))
113 print "#define " macro name \
114 " ((" vname " & " mask name ") != 0)"
116 for (i = 0; i < n_extra_masks; i++) {
117 print "#define TARGET_" extra_masks[i] \
118 " ((target_flags & MASK_" extra_masks[i] ") != 0)"
122 for (i = 0; i < n_opts; i++) {
123 opt = opt_args("InverseMask", flags[i])
125 print "#define TARGET_" nth_arg(1, opt) \
126 " ((target_flags & MASK_" nth_arg(0, opt) ") == 0)"
130 for (i = 0; i < n_langs; i++) {
131 macros[i] = "CL_" langs[i]
132 gsub( "[^A-Za-z0-9_]", "X", macros[i] )
133 s = substr(" ", length (macros[i]))
134 print "#define " macros[i] s " (1 << " i ")"
138 print "enum opt_code"
141 for (i = 0; i < n_opts; i++)
142 back_chain[i] = "N_OPTS";
144 for (i = 0; i < n_opts; i++) {
145 # Combine the flags of identical switches. Switches
146 # appear many times if they are handled by many front
148 while( i + 1 != n_opts && opts[i] == opts[i + 1] ) {
149 flags[i + 1] = flags[i] " " flags[i + 1];
153 len = length (opts[i]);
154 enum = "OPT_" opts[i]
155 if (opts[i] == "finline-limit=")
157 gsub ("[^A-Za-z0-9]", "_", enum)
159 # If this switch takes joined arguments, back-chain all
160 # subsequent switches to it for which it is a prefix. If
161 # a later switch S is a longer prefix of a switch T, T
162 # will be back-chained to S in a later iteration of this
163 # for() loop, which is what we want.
164 if (flag_set_p("Joined.*", flags[i])) {
165 for (j = i + 1; j < n_opts; j++) {
166 if (substr (opts[j], 1, len) != opts[i])
168 back_chain[j] = enum;
172 s = substr(" ", length (opts[i]))
179 hlp = "N_(\"" help[i] "\")";
181 print " " enum "," s "/* -" opts[i] " */"
187 print "#endif /* OPTIONS_H */"