--- /dev/null
+# Copyright (C) 2003,2004,2005,2006,2007,2008 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 header file.
+#
+# This program uses functions from opt-functions.awk
+# Usage: awk -f opt-functions.awk -f opth-gen.awk < inputfile > options.h
+
+BEGIN {
+ n_opts = 0
+ n_langs = 0
+ n_target_save = 0
+ n_extra_masks = 0
+ quote = "\042"
+ comma = ","
+ FS=SUBSEP
+}
+
+# Collect the text and flags of each option into an array
+ {
+ if ($1 == "Language") {
+ langs[n_langs] = $2
+ n_langs++;
+ }
+ else if ($1 == "TargetSave") {
+ # Make sure the declarations are put in source order
+ target_save_decl[n_target_save] = $2
+ n_target_save++
+ }
+ else {
+ name = opt_args("Mask", $1)
+ if (name == "") {
+ opts[n_opts] = $1
+ flags[n_opts] = $2
+ help[n_opts] = $3
+ n_opts++;
+ }
+ else {
+ extra_masks[n_extra_masks++] = name
+ }
+ }
+ }
+
+# Dump out an enumeration into a .h file.
+# Combine the flags of duplicate options.
+END {
+print "/* This file is auto-generated by opth-gen.awk. */"
+print ""
+print "#ifndef OPTIONS_H"
+print "#define OPTIONS_H"
+print ""
+print "extern int target_flags;"
+print "extern int target_flags_explicit;"
+print ""
+
+have_save = 0;
+
+for (i = 0; i < n_opts; i++) {
+ if (flag_set_p("Save", flags[i]))
+ have_save = 1;
+
+ name = var_name(flags[i]);
+ if (name == "")
+ continue;
+
+ if (name in var_seen)
+ continue;
+
+ var_seen[name] = 1;
+ print "extern " var_type(flags[i]) name ";"
+}
+print ""
+
+# All of the optimization switches gathered together so they can be saved and restored.
+# This will allow attribute((cold)) to turn on space optimization.
+
+# Change the type of normal switches from int to unsigned char to save space.
+# Also, order the structure so that pointer fields occur first, then int
+# fields, and then char fields to provide the best packing.
+
+print "#if !defined(GCC_DRIVER) && !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS)"
+print ""
+print "/* Structure to save/restore optimization and target specific options. */";
+print "struct cl_optimization GTY(())";
+print "{";
+
+n_opt_char = 2;
+n_opt_short = 0;
+n_opt_int = 0;
+n_opt_other = 0;
+var_opt_char[0] = "unsigned char optimize";
+var_opt_char[1] = "unsigned char optimize_size";
+
+for (i = 0; i < n_opts; i++) {
+ if (flag_set_p("Optimization", flags[i])) {
+ name = var_name(flags[i])
+ if(name == "")
+ continue;
+
+ if(name in var_opt_seen)
+ continue;
+
+ var_opt_seen[name]++;
+ otype = var_type_struct(flags[i]);
+ if (otype ~ "^((un)?signed +)?int *$")
+ var_opt_int[n_opt_int++] = otype name;
+
+ else if (otype ~ "^((un)?signed +)?short *$")
+ var_opt_short[n_opt_short++] = otype name;
+
+ else if (otype ~ "^((un)?signed +)?char *$")
+ var_opt_char[n_opt_char++] = otype name;
+
+ else
+ var_opt_other[n_opt_other++] = otype 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_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 cl_target_option GTY(())";
+print "{";
+
+n_target_char = 0;
+n_target_short = 0;
+n_target_int = 0;
+n_target_other = 0;
+
+for (i = 0; i < n_target_save; i++) {
+ if (target_save_decl[i] ~ "^((un)?signed +)?int +[_a-zA-Z0-9]+$")
+ var_target_int[n_target_int++] = target_save_decl[i];
+
+ else if (target_save_decl[i] ~ "^((un)?signed +)?short +[_a-zA-Z0-9]+$")
+ var_target_short[n_target_short++] = target_save_decl[i];
+
+ else if (target_save_decl[i] ~ "^((un)?signed +)?char +[_a-zA-Z0-9]+$")
+ var_target_char[n_target_char++] = target_save_decl[i];
+
+ else
+ var_target_other[n_target_other++] = target_save_decl[i];
+}
+
+if (have_save) {
+ for (i = 0; i < n_opts; i++) {
+ if (flag_set_p("Save", flags[i])) {
+ name = var_name(flags[i])
+ if(name == "")
+ name = "target_flags";
+
+ if(name in var_save_seen)
+ continue;
+
+ var_save_seen[name]++;
+ otype = var_type_struct(flags[i])
+ if (otype ~ "^((un)?signed +)?int *$")
+ var_target_int[n_target_int++] = otype name;
+
+ else if (otype ~ "^((un)?signed +)?short *$")
+ var_target_short[n_target_short++] = otype name;
+
+ else if (otype ~ "^((un)?signed +)?char *$")
+ var_target_char[n_target_char++] = otype name;
+
+ else
+ var_target_other[n_target_other++] = otype name;
+ }
+ }
+} else {
+ var_target_int[n_target_int++] = "int target_flags";
+}
+
+for (i = 0; i < n_target_other; i++) {
+ print " " var_target_other[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 *);";
+print "";
+print "/* Restore optimization variables from a structure. */";
+print "extern void cl_optimization_restore (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 *);";
+print "";
+print "/* Restore selected option variables from a structure. */"
+print "extern void cl_target_option_restore (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 "#endif";
+print "";
+
+for (i = 0; i < n_opts; i++) {
+ name = opt_args("Mask", flags[i])
+ vname = var_name(flags[i])
+ mask = "MASK_"
+ if (vname != "") {
+ mask = "OPTION_MASK_"
+ }
+ if (name != "" && !flag_set_p("MaskExists", flags[i]))
+ print "#define " mask name " (1 << " masknum[vname]++ ")"
+}
+for (i = 0; i < n_extra_masks; i++) {
+ print "#define MASK_" extra_masks[i] " (1 << " masknum[""]++ ")"
+}
+
+for (var in masknum) {
+ 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])
+ vname = var_name(flags[i])
+ macro = "OPTION_"
+ mask = "OPTION_MASK_"
+ if (vname == "") {
+ vname = "target_flags"
+ macro = "TARGET_"
+ mask = "MASK_"
+ }
+ if (name != "" && !flag_set_p("MaskExists", flags[i]))
+ print "#define " macro name \
+ " ((" vname " & " mask name ") != 0)"
+}
+for (i = 0; i < n_extra_masks; i++) {
+ 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])
+ macro = "OPTION_"
+ mask = "OPTION_MASK_"
+ if (vname == "") {
+ vname = "target_flags"
+ macro = "TARGET_"
+ mask = "MASK_"
+ }
+ print "#define " macro nth_arg(1, opt) \
+ " ((" vname " & " mask nth_arg(0, opt) ") == 0)"
+ }
+}
+print ""
+
+for (i = 0; i < n_langs; i++) {
+ macros[i] = "CL_" langs[i]
+ gsub( "[^A-Za-z0-9_]", "X", macros[i] )
+ s = substr(" ", length (macros[i]))
+ print "#define " macros[i] s " (1 << " i ")"
+ }
+print "#define CL_LANG_ALL ((1 << " n_langs ") - 1)"
+
+print ""
+print "enum opt_code"
+print "{"
+
+for (i = 0; i < n_opts; i++)
+ back_chain[i] = "N_OPTS";
+
+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_" opts[i]
+ if (opts[i] == "finline-limit=" || opts[i] == "Wlarger-than=")
+ enum = enum "eq"
+ gsub ("[^A-Za-z0-9]", "_", enum)
+
+ # 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 = "N_(\"" help[i] "\")";
+
+ print " " enum "," s "/* -" opts[i] " */"
+}
+
+print " N_OPTS"
+print "};"
+print ""
+print "#endif /* OPTIONS_H */"
+}
projects / msp430-gcc.git / blobdiff