opts.sh: Delete.

2004-06-18  Kelley Cook  <kcook@gcc.gnu.org>

	* opts.sh: Delete.  Break out generated code to next four files.
	* opt-gather.awk: New file.
	* optc-gen.awk: New file.
	* opth-gen.awk: New file.
	* opt-functions.awk: New common file.
	* Makefile.in: Update for above.
	* configure.ac: Update comment.
	* configure: Regenerate.

From-SVN: r83333

1 files changed, 144 insertions, 0 deletions

diff --git a/gcc/optc-gen.awk b/gcc/optc-gen.awk
new file mode 100644
index 0000000..3ed1cf8
--- /dev/null
+++ b/gcc/optc-gen.awk
@@ -0,0 +1,144 @@
+#  Copyright (C) 2003,2004 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 2, 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; if not, write to the Free Software
+# Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+# This Awk script reads in the option records generated from 
+# opt-gather.awk, combines the flags of duplicat options and generates a
+# C file.
+#
+# This program uses functions from opt-functions.awk
+#
+# Usage: awk -f opt-functions.awk -f optc-gen.awk \
+#            [-v header_name=header.h] < inputfile > options.c
+
+BEGIN {
+	n_opts = 0
+	n_langs = 0
+        quote = "\042"
+	comma = ","
+	FS=SUBSEP
+	# Default the name of header created from opth-gen.awk to options.h
+	if (header_name == "") header_name="options.h"
+}
+
+# Collect the text and flags of each option into an array
+	{
+		if ($1 == "Language") {
+			langs[n_langs] = $2
+			n_langs++;
+		}
+		else {
+			opts[n_opts]  = $1
+			flags[n_opts] = $2
+			help[n_opts]  = $3
+			n_opts++;
+		}
+	}
+
+# Dump that array of options into a C file.
+END {
+print "/* This file is auto-generated by opts.sh.  */"
+print ""
+print "#include <intl.h>"
+print "#include " quote header_name quote
+print "#include " quote "opts.h" quote
+print ""
+
+for (i = 0; i < n_opts; i++) {
+	name = var_name(flags[i]);
+	if (name == "")
+		continue;
+
+	if (flags[i] ~ "VarExists")
+		continue;
+
+	if (flags[i] ~ "Init\\(")
+	    {
+		    init = flags[i];
+		    sub(".*Init\\(","",init);
+		    sub("\\).*","",init);
+		    init = " = " init;
+	    }
+	 else
+		    init = "";
+
+	 printf ("/* Set by -%s.\n   %s  */\nint %s%s;\n\n",
+	    opts[i], help[i], name,init)
+    }
+
+
+print "const char * const lang_names[] =\n{"
+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 "  " quote langs[i] quote ","
+    }
+
+print "  0\n};\n"
+print "const unsigned int cl_options_count = N_OPTS;\n"
+
+print "const struct cl_option cl_options[] =\n{"
+
+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=")
+			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 (flags[i] ~ "Joined") {
+			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_(" quote help[i] quote ")";
+
+		printf("  { %c-%s%c,\n    %s,\n    %s, %u, %s, %s, %s }%s\n",
+			quote, opts[i], quote, hlp, back_chain[i], len,
+			switch_flags(flags[i]),
+			var_ref(flags[i]), var_set(flags[i]), comma)
+}
+
+print "};"
+}