# Copyright (C) 2003-2014 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 # . # This Awk script reads in the option records generated from # opt-gather.awk, combines the flags of duplicate options and generates a # C header 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 opth-gen.awk \ # < inputfile > options.h # Dump out an enumeration into a .h file. # Combine the flags of duplicate options. END { print "/* This file is auto-generated by opth-gen.awk. */" print "" print "#ifndef OPTIONS_H" print "#define OPTIONS_H" print "" print "#include \"flag-types.h\"" print "" if (n_extra_h_includes > 0) { for (i = 0; i < n_extra_h_includes; i++) { print "#include " quote extra_h_includes[i] quote } print "" } print "#if !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS) && !defined(IN_RTS)" print "#ifndef GENERATOR_FILE" print "#if !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS)" print "struct GTY(()) gcc_options" print "#else" print "struct gcc_options" print "#endif" print "{" print "#endif" for (i = 0; i < n_extra_vars; i++) { var = extra_vars[i] sub(" *=.*", "", var) orig_var = var name = var type = var type_after = var sub("^.*[ *]", "", name) sub("\\[.*\\]$", "", name) sub("\\[.*\\]$", "", type) sub(" *" name "$", "", type) sub("^.*" name, "", type_after) var_seen[name] = 1 print "#ifdef GENERATOR_FILE" print "extern " orig_var ";" print "#else" print " " type " x_" name type_after ";" print "#define " name " global_options.x_" name print "#endif" } for (i = 0; i < n_opts; i++) { if (flag_set_p("Save", flags[i])) have_save = 1; name = var_name(flags[i]); if (name == "") continue; if (name in var_seen) continue; var_seen[name] = 1; print "#ifdef GENERATOR_FILE" print "extern " var_type(flags[i]) name ";" print "#else" print " " var_type(flags[i]) "x_" name ";" print "#define " name " global_options.x_" name print "#endif" } for (i = 0; i < n_opts; i++) { name = static_var(opts[i], flags[i]); if (name != "") { print "#ifndef GENERATOR_FILE" print " " var_type(flags[i]) "x_" name ";" print "#define x_" name " do_not_use" print "#endif" } } for (i = 0; i < n_opts; i++) { if (flag_set_p("SetByCombined", flags[i])) { print "#ifndef GENERATOR_FILE" print " bool frontend_set_" var_name(flags[i]) ";" print "#endif" } } print "#ifndef GENERATOR_FILE" print "};" print "extern struct gcc_options global_options;" print "extern const struct gcc_options global_options_init;" print "extern struct gcc_options global_options_set;" print "#define target_flags_explicit global_options_set.x_target_flags" print "#endif" print "#endif" print "" # All of the optimization switches gathered together so they can be saved and restored. # This will allow attribute((cold)) to turn on space optimization. # Change the type of normal switches from int to unsigned char to save space. # Also, order the structure so that pointer fields occur first, then int # fields, and then char fields to provide the best packing. print "#if !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS) && !defined(IN_RTS)" print "" print "/* Structure to save/restore optimization and target specific options. */"; print "struct GTY(()) cl_optimization"; print "{"; n_opt_char = 2; n_opt_short = 0; n_opt_int = 0; n_opt_enum = 1; n_opt_other = 0; var_opt_char[0] = "unsigned char x_optimize"; var_opt_char[1] = "unsigned char x_optimize_size"; var_opt_enum[0] = "enum fp_contract_mode x_flag_fp_contract_mode"; for (i = 0; i < n_opts; i++) { if (flag_set_p("Optimization", flags[i])) { name = var_name(flags[i]) if(name == "") continue; if(name in var_opt_seen) continue; var_opt_seen[name]++; otype = var_type_struct(flags[i]); if (otype ~ "^((un)?signed +)?int *$") var_opt_int[n_opt_int++] = otype "x_" name; else if (otype ~ "^((un)?signed +)?short *$") var_opt_short[n_opt_short++] = otype "x_" name; else if (otype ~ "^((un)?signed +)?char *$") var_opt_char[n_opt_char++] = otype "x_" name; else if (otype ~ ("^enum +[_" alnum "]+ *$")) var_opt_enum[n_opt_enum++] = otype "x_" name; else var_opt_other[n_opt_other++] = otype "x_" name; } } for (i = 0; i < n_opt_other; i++) { print " " var_opt_other[i] ";"; } for (i = 0; i < n_opt_int; i++) { print " " var_opt_int[i] ";"; } for (i = 0; i < n_opt_enum; i++) { print " " var_opt_enum[i] ";"; } for (i = 0; i < n_opt_short; i++) { print " " var_opt_short[i] ";"; } for (i = 0; i < n_opt_char; i++) { print " " var_opt_char[i] ";"; } print "};"; print ""; # Target and optimization save/restore/print functions. print "/* Structure to save/restore selected target specific options. */"; print "struct GTY(()) cl_target_option"; print "{"; n_target_char = 0; n_target_short = 0; n_target_int = 0; n_target_enum = 0; n_target_other = 0; for (i = 0; i < n_target_save; i++) { if (target_save_decl[i] ~ "^((un)?signed +)?int +[_" alnum "]+$") var_target_int[n_target_int++] = target_save_decl[i]; else if (target_save_decl[i] ~ "^((un)?signed +)?short +[_" alnum "]+$") var_target_short[n_target_short++] = target_save_decl[i]; else if (target_save_decl[i] ~ "^((un)?signed +)?char +[_ " alnum "]+$") var_target_char[n_target_char++] = target_save_decl[i]; else if (target_save_decl[i] ~ ("^enum +[_" alnum "]+ +[_" alnum "]+$")) { var_target_enum[n_target_enum++] = target_save_decl[i]; } else var_target_other[n_target_other++] = target_save_decl[i]; } if (have_save) { for (i = 0; i < n_opts; i++) { if (flag_set_p("Save", flags[i])) { name = var_name(flags[i]) if(name == "") name = "target_flags"; if(name in var_save_seen) continue; var_save_seen[name]++; otype = var_type_struct(flags[i]) if (otype ~ "^((un)?signed +)?int *$") var_target_int[n_target_int++] = otype "x_" name; else if (otype ~ "^((un)?signed +)?short *$") var_target_short[n_target_short++] = otype "x_" name; else if (otype ~ "^((un)?signed +)?char *$") var_target_char[n_target_char++] = otype "x_" name; else if (otype ~ ("^enum +[_" alnum "]+ +[_" alnum "]+")) var_target_enum[n_target_enum++] = otype "x_" name; else var_target_other[n_target_other++] = otype "x_" name; } } } else { var_target_int[n_target_int++] = "int x_target_flags"; } for (i = 0; i < n_target_other; i++) { print " " var_target_other[i] ";"; } for (i = 0; i < n_target_enum; i++) { print " " var_target_enum[i] ";"; } for (i = 0; i < n_target_int; i++) { print " " var_target_int[i] ";"; } for (i = 0; i < n_target_short; i++) { print " " var_target_short[i] ";"; } for (i = 0; i < n_target_char; i++) { print " " var_target_char[i] ";"; } print "};"; print ""; print ""; print "/* Save optimization variables into a structure. */" print "extern void cl_optimization_save (struct cl_optimization *, struct gcc_options *);"; print ""; print "/* Restore optimization variables from a structure. */"; print "extern void cl_optimization_restore (struct gcc_options *, struct cl_optimization *);"; print ""; print "/* Print optimization variables from a structure. */"; print "extern void cl_optimization_print (FILE *, int, struct cl_optimization *);"; print ""; print "/* Save selected option variables into a structure. */" print "extern void cl_target_option_save (struct cl_target_option *, struct gcc_options *);"; print ""; print "/* Restore selected option variables from a structure. */" print "extern void cl_target_option_restore (struct gcc_options *, struct cl_target_option *);"; print ""; print "/* Print target option variables from a structure. */"; print "extern void cl_target_option_print (FILE *, int, struct cl_target_option *);"; print ""; print "/* Anything that includes tm.h, does not necessarily need this. */" print "#if !defined(GCC_TM_H)" print "#include \"input.h\" /* for location_t */" 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); " for (i = 0; i < n_langs; i++) { lang_name = lang_sanitized_name(langs[i]); print "bool " print lang_name "_handle_option_auto (struct gcc_options *opts, " print " struct gcc_options *opts_set, " print " size_t scode, const char *arg, int value, " print " unsigned int lang_mask, int kind, " print " location_t loc, " print " const struct cl_option_handlers *handlers, " print " diagnostic_context *dc); " } print "#endif"; print "#endif"; print ""; for (i = 0; i < n_opts; i++) { name = opt_args("Mask", flags[i]) if (name == "") { opt = opt_args("InverseMask", flags[i]) if (opt ~ ",") name = nth_arg(0, opt) else name = opt } if (name != "" && mask_bits[name] == 0) { mask_bits[name] = 1 vname = var_name(flags[i]) mask = "MASK_" mask_1 = "1" if (vname != "") { mask = "OPTION_MASK_" if (host_wide_int[vname] == "yes") mask_1 = "HOST_WIDE_INT_1" } else extra_mask_bits[name] = 1 print "#define " mask name " (" mask_1 " << " masknum[vname]++ ")" } } for (i = 0; i < n_extra_masks; i++) { if (extra_mask_bits[extra_masks[i]] == 0) print "#define MASK_" extra_masks[i] " (1 << " masknum[""]++ ")" } for (var in masknum) { if (var != "" && host_wide_int[var] == "yes") { print" #if defined(HOST_BITS_PER_WIDE_INT) && " masknum[var] " >= HOST_BITS_PER_WIDE_INT" print "#error too many masks for " var print "#endif" } else if (masknum[var] > 31) { if (var == "") print "#error too many target masks" else print "#error too many masks for " var } } print "" for (i = 0; i < n_opts; i++) { name = opt_args("Mask", flags[i]) if (name == "") { opt = opt_args("InverseMask", flags[i]) if (opt ~ ",") name = nth_arg(0, opt) else name = opt } if (name != "" && mask_macros[name] == 0) { mask_macros[name] = 1 vname = var_name(flags[i]) mask = "OPTION_MASK_" if (vname == "") { vname = "target_flags" mask = "MASK_" extra_mask_macros[name] = 1 } print "#define TARGET_" name \ " ((" vname " & " mask name ") != 0)" print "#define TARGET_" name "_P(" vname ")" \ " ((" vname " & " mask name ") != 0)" } } for (i = 0; i < n_extra_masks; i++) { if (extra_mask_macros[extra_masks[i]] == 0) print "#define TARGET_" extra_masks[i] \ " ((target_flags & MASK_" extra_masks[i] ") != 0)" } print "" for (i = 0; i < n_opts; i++) { opt = opt_args("InverseMask", flags[i]) if (opt ~ ",") { vname = var_name(flags[i]) mask = "OPTION_MASK_" if (vname == "") { vname = "target_flags" mask = "MASK_" } print "#define TARGET_" nth_arg(1, opt) \ " ((" vname " & " mask nth_arg(0, opt) ") == 0)" } } print "" for (i = 0; i < n_langs; i++) { macros[i] = "CL_" lang_sanitized_name(langs[i]) s = substr(" ", length (macros[i])) print "#define " macros[i] s " (1U << " i ")" } print "#define CL_LANG_ALL ((1U << " n_langs ") - 1)" print "" print "enum opt_code" print "{" for (i = 0; i < n_opts; i++) back_chain[i] = "N_OPTS"; enum_value = 0 for (i = 0; i < n_opts; i++) { # 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]; i++; } len = length (opts[i]); enum = opt_enum(opts[i]) enum_string = enum " = " enum_value "," # Aliases do not get enumeration names. if ((flag_set_p("Alias.*", flags[i]) \ && !flag_set_p("SeparateAlias", flags[i])) \ || flag_set_p("Ignore", flags[i])) { enum_string = "/* " enum_string " */" } # 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 (enum_string)) if (help[i] == "") hlp = "0" else hlp = "N_(\"" help[i] "\")"; print " " enum_string s "/* -" opts[i] " */" enum_value++ } print " N_OPTS," print " OPT_SPECIAL_unknown," print " OPT_SPECIAL_ignore," print " OPT_SPECIAL_program_name," print " OPT_SPECIAL_input_file" print "};" print "" print "#endif /* OPTIONS_H */" }