620 lines
21 KiB
Awk
620 lines
21 KiB
Awk
# Copyright (C) 2003-2021 Free Software Foundation, Inc.
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# Contributed by Kelley Cook, June 2004.
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# Original code from Neil Booth, May 2003.
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#
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# This program is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by the
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# Free Software Foundation; either version 3, or (at your option) any
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# later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; see the file COPYING3. If not see
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# <http://www.gnu.org/licenses/>.
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# This Awk script reads in the option records generated from
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# opt-gather.awk, combines the flags of duplicate options and generates a
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# C file.
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#
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# This program uses functions from opt-functions.awk and code from
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# opt-read.awk.
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#
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# Usage: awk -f opt-functions.awk -f opt-read.awk -f optc-gen.awk \
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# [-v header_name=header.h] < inputfile > options.c
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# Dump that array of options into a C file.
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END {
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# Combine the flags of identical switches. Switches
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# appear many times if they are handled by many front
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# ends, for example.
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for (i = 0; i < n_opts; i++) {
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merged_flags[i] = flags[i]
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}
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for (i = 0; i < n_opts; i++) {
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while(i + 1 != n_opts && opts[i] == opts[i + 1] ) {
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merged_flags[i + 1] = merged_flags[i] " " merged_flags[i + 1];
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i++;
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}
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}
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# Record EnabledBy and LangEnabledBy uses.
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n_enabledby = 0;
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for (i = 0; i < n_langs; i++) {
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n_enabledby_lang[i] = 0;
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}
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for (i = 0; i < n_opts; i++) {
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enabledby_arg = opt_args("EnabledBy", flags[i]);
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if (enabledby_arg != "") {
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logical_and = index(enabledby_arg, " && ");
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if (logical_and != 0) {
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# EnabledBy(arg1 && arg2)
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split_sep = " && ";
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} else {
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# EnabledBy(arg) or EnabledBy(arg1 || arg2 || arg3)
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split_sep = " \\|\\| ";
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}
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n_enabledby_names = split(enabledby_arg, enabledby_names, split_sep);
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if (logical_and != 0 && n_enabledby_names > 2) {
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print "#error " opts[i] " EnabledBy(Wfoo && Wbar && Wbaz) currently not supported"
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}
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for (j = 1; j <= n_enabledby_names; j++) {
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enabledby_name = enabledby_names[j];
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enabledby_index = opt_numbers[enabledby_name];
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if (enabledby_index == "") {
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print "#error " opts[i] " Enabledby(" enabledby_name "), unknown option '" enabledby_name "'"
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} else if (!flag_set_p("Common", merged_flags[enabledby_index])) {
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print "#error " opts[i] " Enabledby(" enabledby_name "), '" \
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enabledby_name "' must have flag 'Common'" \
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" to use Enabledby(), otherwise use LangEnabledBy()"
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} else {
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condition = "";
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if (logical_and != 0) {
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opt_var_name_1 = search_var_name(enabledby_names[1], opt_numbers, opts, flags, n_opts);
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opt_var_name_2 = search_var_name(enabledby_names[2], opt_numbers, opts, flags, n_opts);
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if (opt_var_name_1 == "") {
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print "#error " enabledby_names[1] " does not have a Var() flag"
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}
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if (opt_var_name_2 == "") {
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print "#error " enabledby_names[2] " does not have a Var() flag"
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}
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condition = "opts->x_" opt_var_name_1 " && opts->x_" opt_var_name_2;
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}
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if (enables[enabledby_name] == "") {
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enabledby[n_enabledby] = enabledby_name;
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n_enabledby++;
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}
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enables[enabledby_name] = enables[enabledby_name] opts[i] ";";
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enablesif[enabledby_name] = enablesif[enabledby_name] condition ";";
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}
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}
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}
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enabledby_arg = opt_args("LangEnabledBy", flags[i]);
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if (enabledby_arg != "") {
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enabledby_langs = nth_arg(0, enabledby_arg);
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enabledby_name = nth_arg(1, enabledby_arg);
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enabledby_posarg = nth_arg(2, enabledby_arg);
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enabledby_negarg = nth_arg(3, enabledby_arg);
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lang_enabled_by(enabledby_langs, enabledby_name, enabledby_posarg, enabledby_negarg);
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}
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if (flag_set_p("Param", flags[i]) && !(opts[i] ~ "^-param="))
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print "#error Parameter option name '" opts[i] "' must start with '-param='"
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}
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print "/* This file is auto-generated by optc-gen.awk. */"
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print ""
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n_headers = split(header_name, headers, " ")
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for (i = 1; i <= n_headers; i++)
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print "#include " quote headers[i] quote
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print "#include " quote "opts.h" quote
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print "#include " quote "intl.h" quote
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print "#include " quote "insn-attr-common.h" quote
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print ""
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if (n_extra_c_includes > 0) {
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for (i = 0; i < n_extra_c_includes; i++) {
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print "#include " quote extra_c_includes[i] quote
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}
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print ""
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}
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for (i = 0; i < n_enums; i++) {
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name = enum_names[i]
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type = enum_type[name]
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print "static const struct cl_enum_arg cl_enum_" name \
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"_data[] = "
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print "{"
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print enum_data[name] " { NULL, 0, 0 }"
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print "};"
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print ""
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print "static void"
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print "cl_enum_" name "_set (void *var, int value)"
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print "{"
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print " *((" type " *) var) = (" type ") value;"
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print "}"
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print ""
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print "static int"
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print "cl_enum_" name "_get (const void *var)"
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print "{"
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print " return (int) *((const " type " *) var);"
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print "}"
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print ""
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}
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print "const struct cl_enum cl_enums[] ="
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print "{"
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for (i = 0; i < n_enums; i++) {
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name = enum_names[i]
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ehelp = enum_help[name]
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if (ehelp == "")
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ehelp = "NULL"
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else
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ehelp = quote ehelp quote
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unknown_error = enum_unknown_error[name]
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if (unknown_error == "")
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unknown_error = "NULL"
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else
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unknown_error = quote unknown_error quote
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print " {"
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print " " ehelp ","
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print " " unknown_error ","
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print " cl_enum_" name "_data,"
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print " sizeof (" enum_type[name] "),"
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print " cl_enum_" name "_set,"
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print " cl_enum_" name "_get"
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print " },"
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}
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print "};"
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print "const unsigned int cl_enums_count = " n_enums ";"
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print ""
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print "const struct gcc_options global_options_init =\n{"
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for (i = 0; i < n_extra_vars; i++) {
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var = extra_vars[i]
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init = extra_vars[i]
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if (var ~ "=" ) {
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sub(".*= *", "", init)
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} else {
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init = "0"
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}
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sub(" *=.*", "", var)
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name = var
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sub("^.*[ *]", "", name)
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sub("\\[.*\\]$", "", name)
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var_seen[name] = 1
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print " " init ", /* " name " */"
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}
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for (i = 0; i < n_opts; i++) {
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name = var_name(flags[i]);
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if (name == "")
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continue;
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init = opt_args("Init", flags[i])
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if (init != "") {
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if (name in var_init && var_init[name] != init)
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print "#error multiple initializers for " name
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var_init[name] = init
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}
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}
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for (i = 0; i < n_opts; i++) {
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name = var_name(flags[i]);
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if (name == "")
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continue;
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if (name in var_seen)
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continue;
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if (name in var_init)
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init = var_init[name]
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else
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init = "0"
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print " " init ", /* " name " */"
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var_seen[name] = 1;
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}
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for (i = 0; i < n_opts; i++) {
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name = static_var(opts[i], flags[i]);
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if (name != "") {
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print " 0, /* " name " (private state) */"
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print "#undef x_" name
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}
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}
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for (i = 0; i < n_opts; i++) {
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if (flag_set_p("SetByCombined", flags[i]))
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print " false, /* frontend_set_" var_name(flags[i]) " */"
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}
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print "};"
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print ""
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print "struct gcc_options global_options;"
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print "struct gcc_options global_options_set;"
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print ""
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print "const char * const lang_names[] =\n{"
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for (i = 0; i < n_langs; i++) {
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macros[i] = "CL_" lang_sanitized_name(langs[i])
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s = substr(" ", length (macros[i]))
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print " " quote langs[i] quote ","
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}
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print " 0\n};\n"
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print "const unsigned int cl_options_count = N_OPTS;\n"
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print "#if (1U << " n_langs ") > CL_MIN_OPTION_CLASS"
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print " #error the number of languages exceeds the implementation limit"
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print "#endif"
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print "const unsigned int cl_lang_count = " n_langs ";\n"
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print "const struct cl_option cl_options[] =\n{"
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j = 0
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for (i = 0; i < n_opts; i++) {
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back_chain[i] = "N_OPTS";
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indices[opts[i]] = j;
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# Combine the flags of identical switches. Switches
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# appear many times if they are handled by many front
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# ends, for example.
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while( i + 1 != n_opts && opts[i] == opts[i + 1] ) {
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flags[i + 1] = flags[i] " " flags[i + 1];
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if (help[i + 1] == "")
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help[i + 1] = help[i]
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else if (help[i] != "" && help[i + 1] != help[i])
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print "#error Multiple different help strings for " \
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opts[i] ":\n\t" help[i] "\n\t" help[i + 1]
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i++;
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back_chain[i] = "N_OPTS";
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indices[opts[i]] = j;
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}
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j++;
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}
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optindex = 0
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for (i = 0; i < n_opts; i++) {
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# With identical flags, pick only the last one. The
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# earlier loop ensured that it has all flags merged,
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# and a nonempty help text if one of the texts was nonempty.
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while( i + 1 != n_opts && opts[i] == opts[i + 1] ) {
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i++;
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}
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len = length (opts[i]);
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enum = opt_enum(opts[i])
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# If this switch takes joined arguments, back-chain all
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# subsequent switches to it for which it is a prefix. If
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# a later switch S is a longer prefix of a switch T, T
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# will be back-chained to S in a later iteration of this
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# for() loop, which is what we want.
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if (flag_set_p("Joined.*", flags[i])) {
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for (j = i + 1; j < n_opts; j++) {
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if (substr (opts[j], 1, len) != opts[i])
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break;
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back_chain[j] = enum;
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}
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}
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s = substr(" ", length (opts[i]))
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if (i + 1 == n_opts)
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comma = ""
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if (help[i] == "")
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hlp = "NULL"
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else
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hlp = quote help[i] quote;
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missing_arg_error = opt_args("MissingArgError", flags[i])
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if (missing_arg_error == "")
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missing_arg_error = "NULL"
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else
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missing_arg_error = quote missing_arg_error quote
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warn_message = opt_args("Warn", flags[i])
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if (warn_message == "")
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warn_message = "NULL"
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else
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warn_message = quote warn_message quote
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alias_arg = opt_args("Alias", flags[i])
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if (alias_arg == "") {
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if (flag_set_p("Ignore", flags[i])) {
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alias_data = "NULL, NULL, OPT_SPECIAL_ignore"
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if (warn_message != "NULL")
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print "#error Ignored option with Warn"
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if (var_name(flags[i]) != "")
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print "#error Ignored option with Var"
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}
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else if (flag_set_p("Deprecated", flags[i]))
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print "#error Deprecated was replaced with WarnRemoved"
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else if (flag_set_p("WarnRemoved", flags[i])) {
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alias_data = "NULL, NULL, OPT_SPECIAL_warn_removed"
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if (warn_message != "NULL")
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print "#error WarnRemoved option with Warn"
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}
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else
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alias_data = "NULL, NULL, N_OPTS"
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if (flag_set_p("Enum.*", flags[i])) {
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if (!flag_set_p("RejectNegative", flags[i]) \
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&& opts[i] ~ "^[Wfgm]")
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print "#error Enum allowing negative form"
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}
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} else {
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alias_opt = nth_arg(0, alias_arg)
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alias_posarg = nth_arg(1, alias_arg)
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alias_negarg = nth_arg(2, alias_arg)
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if (var_ref(opts[i], flags[i]) != "(unsigned short) -1")
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print "#error Alias setting variable"
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if (alias_posarg != "" && alias_negarg == "") {
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if (!flag_set_p("RejectNegative", flags[i]) \
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&& opts[i] ~ "^[Wfm]")
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print "#error Alias with single argument " \
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"allowing negative form"
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}
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if (alias_posarg != "" \
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&& flag_set_p("NegativeAlias", flags[i])) {
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print "#error Alias with multiple arguments " \
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"used with NegativeAlias"
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}
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alias_opt = opt_enum(alias_opt)
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if (alias_posarg == "")
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alias_posarg = "NULL"
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else
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alias_posarg = quote alias_posarg quote
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if (alias_negarg == "")
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alias_negarg = "NULL"
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else
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alias_negarg = quote alias_negarg quote
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alias_data = alias_posarg ", " alias_negarg ", " alias_opt
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}
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neg = opt_args("Negative", flags[i]);
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if (neg != "")
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idx = indices[neg]
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else {
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if (flag_set_p("RejectNegative", flags[i]))
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idx = -1;
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else {
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if (opts[i] ~ "^[Wfgm]")
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idx = indices[opts[i]];
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else
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idx = -1;
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}
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}
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# Split the printf after %u to work around an ia64-hp-hpux11.23
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# awk bug.
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printf(" /* [%i] = */ {\n", optindex)
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printf(" %c-%s%c,\n %s,\n %s,\n %s,\n %s, %s, %u,",
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quote, opts[i], quote, hlp, missing_arg_error, warn_message,
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alias_data, back_chain[i], len)
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printf(" /* .neg_idx = */ %d,\n", idx)
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condition = opt_args("Condition", flags[i])
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cl_flags = switch_flags(flags[i])
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cl_bit_fields = switch_bit_fields(flags[i])
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cl_zero_bit_fields = switch_bit_fields("")
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if (condition != "")
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printf("#if %s\n" \
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" %s,\n" \
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" 0, %s,\n" \
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"#else\n" \
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" 0,\n" \
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" 1 /* Disabled. */, %s,\n" \
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"#endif\n",
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condition, cl_flags, cl_bit_fields, cl_zero_bit_fields)
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else
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printf(" %s,\n" \
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" 0, %s,\n",
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cl_flags, cl_bit_fields)
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printf(" %s, %s, %s }%s\n", var_ref(opts[i], flags[i]),
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var_set(flags[i]), integer_range_info(opt_args("IntegerRange", flags[i]),
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opt_args("Init", flags[i]), opts[i]), comma)
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# Bump up the informational option index.
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++optindex
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}
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print "};"
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print "\n\n"
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print "bool "
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print "common_handle_option_auto (struct gcc_options *opts, "
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print " struct gcc_options *opts_set, "
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print " const struct cl_decoded_option *decoded, "
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print " unsigned int lang_mask, int kind, "
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print " location_t loc, "
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print " const struct cl_option_handlers *handlers, "
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print " diagnostic_context *dc) "
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print "{ "
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print " size_t scode = decoded->opt_index; "
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print " HOST_WIDE_INT value = decoded->value; "
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print " enum opt_code code = (enum opt_code) scode; "
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print " "
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print " gcc_assert (decoded->canonical_option_num_elements <= 2); "
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print " "
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print " switch (code) "
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print " { "
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# Handle EnabledBy
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for (i = 0; i < n_enabledby; i++) {
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enabledby_name = enabledby[i];
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print " case " opt_enum(enabledby_name) ":"
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n_enables = split(enables[enabledby_name], thisenable, ";");
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n_enablesif = split(enablesif[enabledby_name], thisenableif, ";");
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if (n_enables != n_enablesif) {
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print "#error n_enables != n_enablesif: Something went wrong!"
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}
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for (j = 1; j < n_enables; j++) {
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opt_var_name = var_name(flags[opt_numbers[thisenable[j]]]);
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if (opt_var_name != "") {
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condition = "!opts_set->x_" opt_var_name
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if (thisenableif[j] != "") {
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value = "(" thisenableif[j] ")"
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} else {
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value = "value"
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}
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print " if (" condition ")"
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print " handle_generated_option (opts, opts_set,"
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print " " opt_enum(thisenable[j]) ", NULL, " value ","
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print " lang_mask, kind, loc, handlers, true, dc);"
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} else {
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print "#error " thisenable[j] " does not have a Var() flag"
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}
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}
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print " break;\n"
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}
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print " default: "
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print " break; "
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print " } "
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print " return true; "
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print "} "
|
|
|
|
# Handle LangEnabledBy
|
|
for (i = 0; i < n_langs; i++) {
|
|
lang_name = lang_sanitized_name(langs[i]);
|
|
mark_unused = " ATTRIBUTE_UNUSED";
|
|
|
|
print "\n\n"
|
|
print "bool "
|
|
print lang_name "_handle_option_auto (struct gcc_options *opts" mark_unused ", "
|
|
print " struct gcc_options *opts_set" mark_unused ", "
|
|
print " size_t scode" mark_unused ", const char *arg" mark_unused ", HOST_WIDE_INT value" mark_unused ", "
|
|
print " unsigned int lang_mask" mark_unused ", int kind" mark_unused ", "
|
|
print " location_t loc" mark_unused ", "
|
|
print " const struct cl_option_handlers *handlers" mark_unused ", "
|
|
print " diagnostic_context *dc" mark_unused ") "
|
|
print "{ "
|
|
print " enum opt_code code = (enum opt_code) scode; "
|
|
print " "
|
|
print " switch (code) "
|
|
print " { "
|
|
|
|
for (k = 0; k < n_enabledby_lang[i]; k++) {
|
|
enabledby_name = enabledby[lang_name,k];
|
|
print " case " opt_enum(enabledby_name) ":"
|
|
n_thisenable = split(enables[lang_name,enabledby_name], thisenable, ";");
|
|
for (j = 1; j < n_thisenable; j++) {
|
|
n_thisenable_args = split(thisenable[j], thisenable_args, ",");
|
|
if (n_thisenable_args == 1) {
|
|
thisenable_opt = thisenable[j];
|
|
value = "value";
|
|
} else {
|
|
thisenable_opt = thisenable_args[1];
|
|
with_posarg = thisenable_args[2];
|
|
with_negarg = thisenable_args[3];
|
|
value = "value ? " with_posarg " : " with_negarg;
|
|
}
|
|
opt_var_name = var_name(flags[opt_numbers[thisenable_opt]]);
|
|
if (opt_var_name != "") {
|
|
print " if (!opts_set->x_" opt_var_name ")"
|
|
print " handle_generated_option (opts, opts_set,"
|
|
print " " opt_enum(thisenable_opt) ", NULL, " value ","
|
|
print " lang_mask, kind, loc, handlers, true, dc);"
|
|
} else {
|
|
print "#error " thisenable_opt " does not have a Var() flag"
|
|
}
|
|
}
|
|
print " break;\n"
|
|
}
|
|
print " default: "
|
|
print " break; "
|
|
print " } "
|
|
print " return true; "
|
|
print "} "
|
|
}
|
|
|
|
#Handle CPP()
|
|
print "\n"
|
|
print "#include " quote "cpplib.h" quote;
|
|
print "void"
|
|
print "cpp_handle_option_auto (const struct gcc_options * opts, "
|
|
print " size_t scode, struct cpp_options * cpp_opts)"
|
|
print "{ "
|
|
print " enum opt_code code = (enum opt_code) scode; "
|
|
print " "
|
|
print " switch (code) "
|
|
print " { "
|
|
for (i = 0; i < n_opts; i++) {
|
|
# With identical flags, pick only the last one. The
|
|
# earlier loop ensured that it has all flags merged,
|
|
# and a nonempty help text if one of the texts was nonempty.
|
|
while( i + 1 != n_opts && opts[i] == opts[i + 1] ) {
|
|
i++;
|
|
}
|
|
|
|
cpp_option = nth_arg(0, opt_args("CPP", flags[i]));
|
|
if (cpp_option != "") {
|
|
opt_var_name = var_name(flags[i]);
|
|
init = opt_args("Init", flags[i])
|
|
if (opt_var_name != "" && init != "") {
|
|
print " case " opt_enum(opts[i]) ":"
|
|
print " cpp_opts->" cpp_option " = opts->x_" opt_var_name ";"
|
|
print " break;"
|
|
} else if (opt_var_name == "" && init == "") {
|
|
print "#error CPP() requires setting Init() and Var() for " opts[i]
|
|
} else if (opt_var_name != "") {
|
|
print "#error CPP() requires setting Init() for " opts[i]
|
|
} else {
|
|
print "#error CPP() requires setting Var() for " opts[i]
|
|
}
|
|
}
|
|
}
|
|
print " default: "
|
|
print " break; "
|
|
print " } "
|
|
print "}\n"
|
|
print "void"
|
|
print "init_global_opts_from_cpp(struct gcc_options * opts, "
|
|
print " const struct cpp_options * cpp_opts)"
|
|
print "{ "
|
|
for (i = 0; i < n_opts; i++) {
|
|
# With identical flags, pick only the last one. The
|
|
# earlier loop ensured that it has all flags merged,
|
|
# and a nonempty help text if one of the texts was nonempty.
|
|
while( i + 1 != n_opts && opts[i] == opts[i + 1] ) {
|
|
i++;
|
|
}
|
|
cpp_option = nth_arg(0, opt_args("CPP", flags[i]));
|
|
opt_var_name = var_name(flags[i]);
|
|
if (cpp_option != "" && opt_var_name != "") {
|
|
print " opts->x_" opt_var_name " = cpp_opts->" cpp_option ";"
|
|
}
|
|
}
|
|
print "} "
|
|
|
|
split("", var_seen, ":")
|
|
print "\n#if !defined(GENERATOR_FILE) && defined(ENABLE_PLUGIN)"
|
|
print "DEBUG_VARIABLE const struct cl_var cl_vars[] =\n{"
|
|
|
|
for (i = 0; i < n_opts; i++) {
|
|
name = var_name(flags[i]);
|
|
if (name == "")
|
|
continue;
|
|
var_seen[name] = 1;
|
|
}
|
|
|
|
for (i = 0; i < n_extra_vars; i++) {
|
|
var = extra_vars[i]
|
|
sub(" *=.*", "", var)
|
|
name = var
|
|
sub("^.*[ *]", "", name)
|
|
sub("\\[.*\\]$", "", name)
|
|
if (name in var_seen)
|
|
continue;
|
|
print " { " quote name quote ", offsetof (struct gcc_options, x_" name ") },"
|
|
var_seen[name] = 1
|
|
}
|
|
|
|
print " { NULL, (unsigned short) -1 }\n};\n#endif"
|
|
|
|
}
|