| # Copyright (C) 2003-2017 Free Software Foundation, Inc. |
| # Contributed by Kelley Cook, June 2004. |
| # Original code from Neil Booth, May 2003. |
| # |
| # This program is free software; you can redistribute it and/or modify it |
| # under the terms of the GNU General Public License as published by the |
| # Free Software Foundation; either version 3, or (at your option) any |
| # later version. |
| # |
| # This program is distributed in the hope that it will be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program; see the file COPYING3. If not see |
| # <http://www.gnu.org/licenses/>. |
| |
| # This Awk script reads in the option records generated from |
| # opt-gather.awk, combines the flags of duplicate options and generates a |
| # C file. |
| # |
| |
| # This program uses functions from opt-functions.awk and code from |
| # opt-read.awk. |
| # |
| # Usage: awk -f opt-functions.awk -f opt-read.awk -f optc-gen.awk \ |
| # [-v header_name=header.h] < inputfile > options.c |
| |
| # Dump that array of options into a C file. |
| END { |
| |
| |
| # Combine the flags of identical switches. Switches |
| # appear many times if they are handled by many front |
| # ends, for example. |
| for (i = 0; i < n_opts; i++) { |
| merged_flags[i] = flags[i] |
| } |
| for (i = 0; i < n_opts; i++) { |
| while(i + 1 != n_opts && opts[i] == opts[i + 1] ) { |
| merged_flags[i + 1] = merged_flags[i] " " merged_flags[i + 1]; |
| i++; |
| } |
| } |
| |
| # Record EnabledBy and LangEnabledBy uses. |
| n_enabledby = 0; |
| for (i = 0; i < n_langs; i++) { |
| n_enabledby_lang[i] = 0; |
| } |
| for (i = 0; i < n_opts; i++) { |
| enabledby_arg = opt_args("EnabledBy", flags[i]); |
| if (enabledby_arg != "") { |
| logical_and = index(enabledby_arg, " && "); |
| if (logical_and != 0) { |
| # EnabledBy(arg1 && arg2) |
| split_sep = " && "; |
| } else { |
| # EnabledBy(arg) or EnabledBy(arg1 || arg2 || arg3) |
| split_sep = " \\|\\| "; |
| } |
| n_enabledby_names = split(enabledby_arg, enabledby_names, split_sep); |
| if (logical_and != 0 && n_enabledby_names > 2) { |
| print "#error " opts[i] " EnabledBy(Wfoo && Wbar && Wbaz) currently not supported" |
| } |
| for (j = 1; j <= n_enabledby_names; j++) { |
| enabledby_name = enabledby_names[j]; |
| enabledby_index = opt_numbers[enabledby_name]; |
| if (enabledby_index == "") { |
| print "#error " opts[i] " Enabledby(" enabledby_name "), unknown option '" enabledby_name "'" |
| } else if (!flag_set_p("Common", merged_flags[enabledby_index])) { |
| print "#error " opts[i] " Enabledby(" enabledby_name "), '" \ |
| enabledby_name "' must have flag 'Common'" \ |
| " to use Enabledby(), otherwise use LangEnabledBy()" |
| } else { |
| condition = ""; |
| if (logical_and != 0) { |
| opt_var_name_1 = search_var_name(enabledby_names[1], opt_numbers, opts, flags, n_opts); |
| opt_var_name_2 = search_var_name(enabledby_names[2], opt_numbers, opts, flags, n_opts); |
| if (opt_var_name_1 == "") { |
| print "#error " enabledby_names[1] " does not have a Var() flag" |
| } |
| if (opt_var_name_2 == "") { |
| print "#error " enabledby_names[2] " does not have a Var() flag" |
| } |
| condition = "opts->x_" opt_var_name_1 " && opts->x_" opt_var_name_2; |
| } |
| if (enables[enabledby_name] == "") { |
| enabledby[n_enabledby] = enabledby_name; |
| n_enabledby++; |
| } |
| enables[enabledby_name] = enables[enabledby_name] opts[i] ";"; |
| enablesif[enabledby_name] = enablesif[enabledby_name] condition ";"; |
| } |
| } |
| } |
| |
| enabledby_arg = opt_args("LangEnabledBy", flags[i]); |
| if (enabledby_arg != "") { |
| enabledby_langs = nth_arg(0, enabledby_arg); |
| enabledby_name = nth_arg(1, enabledby_arg); |
| enabledby_posarg = nth_arg(2, enabledby_arg); |
| enabledby_negarg = nth_arg(3, enabledby_arg); |
| lang_enabled_by(enabledby_langs, enabledby_name, enabledby_posarg, enabledby_negarg); |
| } |
| } |
| |
| |
| print "/* This file is auto-generated by optc-gen.awk. */" |
| print "" |
| n_headers = split(header_name, headers, " ") |
| for (i = 1; i <= n_headers; i++) |
| print "#include " quote headers[i] quote |
| print "#include " quote "opts.h" quote |
| print "#include " quote "intl.h" quote |
| print "#include " quote "insn-attr-common.h" quote |
| print "" |
| |
| if (n_extra_c_includes > 0) { |
| for (i = 0; i < n_extra_c_includes; i++) { |
| print "#include " quote extra_c_includes[i] quote |
| } |
| print "" |
| } |
| |
| for (i = 0; i < n_enums; i++) { |
| name = enum_names[i] |
| type = enum_type[name] |
| print "static const struct cl_enum_arg cl_enum_" name \ |
| "_data[] = " |
| print "{" |
| print enum_data[name] " { NULL, 0, 0 }" |
| print "};" |
| print "" |
| print "static void" |
| print "cl_enum_" name "_set (void *var, int value)" |
| print "{" |
| print " *((" type " *) var) = (" type ") value;" |
| print "}" |
| print "" |
| print "static int" |
| print "cl_enum_" name "_get (const void *var)" |
| print "{" |
| print " return (int) *((const " type " *) var);" |
| print "}" |
| print "" |
| } |
| |
| print "const struct cl_enum cl_enums[] =" |
| print "{" |
| for (i = 0; i < n_enums; i++) { |
| name = enum_names[i] |
| ehelp = enum_help[name] |
| if (ehelp == "") |
| ehelp = "NULL" |
| else |
| ehelp = quote ehelp quote |
| unknown_error = enum_unknown_error[name] |
| if (unknown_error == "") |
| unknown_error = "NULL" |
| else |
| unknown_error = quote unknown_error quote |
| print " {" |
| print " " ehelp "," |
| print " " unknown_error "," |
| print " cl_enum_" name "_data," |
| print " sizeof (" enum_type[name] ")," |
| print " cl_enum_" name "_set," |
| print " cl_enum_" name "_get" |
| print " }," |
| } |
| print "};" |
| print "const unsigned int cl_enums_count = " n_enums ";" |
| print "" |
| |
| print "const struct gcc_options global_options_init =\n{" |
| for (i = 0; i < n_extra_vars; i++) { |
| var = extra_vars[i] |
| init = extra_vars[i] |
| if (var ~ "=" ) { |
| sub(".*= *", "", init) |
| } else { |
| init = "0" |
| } |
| sub(" *=.*", "", var) |
| name = var |
| sub("^.*[ *]", "", name) |
| sub("\\[.*\\]$", "", name) |
| var_seen[name] = 1 |
| print " " init ", /* " name " */" |
| } |
| for (i = 0; i < n_opts; i++) { |
| name = var_name(flags[i]); |
| if (name == "") |
| continue; |
| |
| init = opt_args("Init", flags[i]) |
| if (init != "") { |
| if (name in var_init && var_init[name] != init) |
| print "#error multiple initializers for " name |
| var_init[name] = init |
| } |
| } |
| for (i = 0; i < n_opts; i++) { |
| name = var_name(flags[i]); |
| if (name == "") |
| continue; |
| |
| if (name in var_seen) |
| continue; |
| |
| if (name in var_init) |
| init = var_init[name] |
| else |
| init = "0" |
| |
| print " " init ", /* " name " */" |
| |
| var_seen[name] = 1; |
| } |
| for (i = 0; i < n_opts; i++) { |
| name = static_var(opts[i], flags[i]); |
| if (name != "") { |
| print " 0, /* " name " (private state) */" |
| print "#undef x_" name |
| } |
| } |
| for (i = 0; i < n_opts; i++) { |
| if (flag_set_p("SetByCombined", flags[i])) |
| print " false, /* frontend_set_" var_name(flags[i]) " */" |
| } |
| print "};" |
| print "" |
| print "struct gcc_options global_options;" |
| print "struct gcc_options global_options_set;" |
| print "" |
| |
| print "const char * const lang_names[] =\n{" |
| for (i = 0; i < n_langs; i++) { |
| macros[i] = "CL_" lang_sanitized_name(langs[i]) |
| s = substr(" ", length (macros[i])) |
| print " " quote langs[i] quote "," |
| } |
| |
| print " 0\n};\n" |
| print "const unsigned int cl_options_count = N_OPTS;\n" |
| print "#if (1U << " n_langs ") > CL_MIN_OPTION_CLASS" |
| print " #error the number of languages exceeds the implementation limit" |
| print "#endif" |
| print "const unsigned int cl_lang_count = " n_langs ";\n" |
| |
| print "const struct cl_option cl_options[] =\n{" |
| |
| j = 0 |
| for (i = 0; i < n_opts; i++) { |
| back_chain[i] = "N_OPTS"; |
| indices[opts[i]] = j; |
| # Combine the flags of identical switches. Switches |
| # appear many times if they are handled by many front |
| # ends, for example. |
| while( i + 1 != n_opts && opts[i] == opts[i + 1] ) { |
| flags[i + 1] = flags[i] " " flags[i + 1]; |
| if (help[i + 1] == "") |
| help[i + 1] = help[i] |
| else if (help[i] != "" && help[i + 1] != help[i]) |
| print "#error Multiple different help strings for " \ |
| opts[i] ":\n\t" help[i] "\n\t" help[i + 1] |
| |
| i++; |
| back_chain[i] = "N_OPTS"; |
| indices[opts[i]] = j; |
| } |
| j++; |
| } |
| |
| 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++; |
| } |
| |
| len = length (opts[i]); |
| enum = opt_enum(opts[i]) |
| |
| # If this switch takes joined arguments, back-chain all |
| # subsequent switches to it for which it is a prefix. If |
| # a later switch S is a longer prefix of a switch T, T |
| # will be back-chained to S in a later iteration of this |
| # for() loop, which is what we want. |
| if (flag_set_p("Joined.*", flags[i])) { |
| for (j = i + 1; j < n_opts; j++) { |
| if (substr (opts[j], 1, len) != opts[i]) |
| break; |
| back_chain[j] = enum; |
| } |
| } |
| |
| s = substr(" ", length (opts[i])) |
| if (i + 1 == n_opts) |
| comma = "" |
| |
| if (help[i] == "") |
| hlp = "0" |
| else |
| hlp = quote help[i] quote; |
| |
| missing_arg_error = opt_args("MissingArgError", flags[i]) |
| if (missing_arg_error == "") |
| missing_arg_error = "0" |
| else |
| missing_arg_error = quote missing_arg_error quote |
| |
| |
| warn_message = opt_args("Warn", flags[i]) |
| if (warn_message == "") |
| warn_message = "0" |
| else |
| warn_message = quote warn_message quote |
| |
| alias_arg = opt_args("Alias", flags[i]) |
| if (alias_arg == "") { |
| if (flag_set_p("Ignore", flags[i])) |
| alias_data = "NULL, NULL, OPT_SPECIAL_ignore" |
| else |
| alias_data = "NULL, NULL, N_OPTS" |
| if (flag_set_p("Enum.*", flags[i])) { |
| if (!flag_set_p("RejectNegative", flags[i]) \ |
| && opts[i] ~ "^[Wfm]") |
| print "#error Enum allowing negative form" |
| } |
| } else { |
| alias_opt = nth_arg(0, alias_arg) |
| alias_posarg = nth_arg(1, alias_arg) |
| alias_negarg = nth_arg(2, alias_arg) |
| |
| if (var_ref(opts[i], flags[i]) != "-1") |
| print "#error Alias setting variable" |
| |
| if (alias_posarg != "" && alias_negarg == "") { |
| if (!flag_set_p("RejectNegative", flags[i]) \ |
| && opts[i] ~ "^[Wfm]") |
| print "#error Alias with single argument " \ |
| "allowing negative form" |
| } |
| if (alias_posarg != "" \ |
| && flag_set_p("NegativeAlias", flags[i])) { |
| print "#error Alias with multiple arguments " \ |
| "used with NegativeAlias" |
| } |
| |
| alias_opt = opt_enum(alias_opt) |
| if (alias_posarg == "") |
| alias_posarg = "NULL" |
| else |
| alias_posarg = quote alias_posarg quote |
| if (alias_negarg == "") |
| alias_negarg = "NULL" |
| else |
| alias_negarg = quote alias_negarg quote |
| alias_data = alias_posarg ", " alias_negarg ", " alias_opt |
| } |
| |
| neg = opt_args("Negative", flags[i]); |
| if (neg != "") |
| idx = indices[neg] |
| else { |
| if (flag_set_p("RejectNegative", flags[i])) |
| idx = -1; |
| else { |
| if (opts[i] ~ "^[Wfm]") |
| idx = indices[opts[i]]; |
| else |
| idx = -1; |
| } |
| } |
| # Split the printf after %u to work around an ia64-hp-hpux11.23 |
| # awk bug. |
| printf(" { %c-%s%c,\n %s,\n %s,\n %s,\n %s, %s, %u,", |
| quote, opts[i], quote, hlp, missing_arg_error, warn_message, |
| alias_data, back_chain[i], len) |
| printf(" %d,\n", idx) |
| condition = opt_args("Condition", flags[i]) |
| cl_flags = switch_flags(flags[i]) |
| cl_bit_fields = switch_bit_fields(flags[i]) |
| cl_zero_bit_fields = switch_bit_fields("") |
| if (condition != "") |
| printf("#if %s\n" \ |
| " %s,\n" \ |
| " 0, %s,\n" \ |
| "#else\n" \ |
| " 0,\n" \ |
| " 1 /* Disabled. */, %s,\n" \ |
| "#endif\n", |
| condition, cl_flags, cl_bit_fields, cl_zero_bit_fields) |
| else |
| printf(" %s,\n" \ |
| " 0, %s,\n", |
| cl_flags, cl_bit_fields) |
| printf(" %s, %s }%s\n", var_ref(opts[i], flags[i]), |
| var_set(flags[i]), comma) |
| } |
| |
| print "};" |
| |
| print "\n\n" |
| print "bool " |
| print "common_handle_option_auto (struct gcc_options *opts, " |
| print " struct gcc_options *opts_set, " |
| print " const struct cl_decoded_option *decoded, " |
| print " unsigned int lang_mask, int kind, " |
| print " location_t loc, " |
| print " const struct cl_option_handlers *handlers, " |
| print " diagnostic_context *dc) " |
| print "{ " |
| print " size_t scode = decoded->opt_index; " |
| print " int value = decoded->value; " |
| print " enum opt_code code = (enum opt_code) scode; " |
| print " " |
| print " gcc_assert (decoded->canonical_option_num_elements <= 2); " |
| print " " |
| print " switch (code) " |
| print " { " |
| # Handle EnabledBy |
| for (i = 0; i < n_enabledby; i++) { |
| enabledby_name = enabledby[i]; |
| print " case " opt_enum(enabledby_name) ":" |
| n_enables = split(enables[enabledby_name], thisenable, ";"); |
| n_enablesif = split(enablesif[enabledby_name], thisenableif, ";"); |
| if (n_enables != n_enablesif) { |
| print "#error n_enables != n_enablesif: Something went wrong!" |
| } |
| for (j = 1; j < n_enables; j++) { |
| opt_var_name = var_name(flags[opt_numbers[thisenable[j]]]); |
| if (opt_var_name != "") { |
| condition = "!opts_set->x_" opt_var_name |
| if (thisenableif[j] != "") { |
| value = "(" thisenableif[j] ")" |
| } else { |
| value = "value" |
| } |
| print " if (" condition ")" |
| print " handle_generated_option (opts, opts_set," |
| print " " opt_enum(thisenable[j]) ", NULL, " value "," |
| print " lang_mask, kind, loc, handlers, true, dc);" |
| } else { |
| print "#error " thisenable[j] " does not have a Var() flag" |
| } |
| } |
| print " break;\n" |
| } |
| print " default: " |
| print " break; " |
| print " } " |
| print " return true; " |
| 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 ", 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 "} " |
| |
| } |
| |