| # Copyright (C) 2003, 2004, 2007, 2008, 2009, 2010, 2011 |
| # 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 { |
| 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_" langs[i] |
| gsub( "[^" alnum "_]", "X", macros[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 "warning: multiple different help strings for " \ |
| opts[i] ":\n\t" help[i] "\n\t" help[i + 1] \ |
| | "cat 1>&2" |
| 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" |
| } 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 "};" |
| |
| } |