From da9b36b02f21a7c928496290d18041bbbe05e6d4 Mon Sep 17 00:00:00 2001
From: David Malcolm <dmalcolm@redhat.com>
Date: Sat, 19 Mar 2016 02:58:57 -0400
Subject: [PATCH 04/39] FIXME: call read_md_files from rtl-frontend.c

---
 gcc/rtl/Make-lang.in   |  4 +++-
 gcc/rtl/rtl-errors.c   | 32 ++++++++++++++++++++++++++++++++
 gcc/rtl/rtl-frontend.c | 30 +++++++++++++++++++++---------
 3 files changed, 56 insertions(+), 10 deletions(-)
 create mode 100644 gcc/rtl/rtl-errors.c

diff --git a/gcc/rtl/Make-lang.in b/gcc/rtl/Make-lang.in
index f92ec24..19d5842 100644
--- a/gcc/rtl/Make-lang.in
+++ b/gcc/rtl/Make-lang.in
@@ -29,7 +29,9 @@ rtl: rtl1$(exeext)
 rtl-warn = $(STRICT_WARN)
 
 RTL_OBJS = \
-	rtl/rtl-frontend.o
+	rtl/rtl-errors.o \
+	rtl/rtl-frontend.o \
+	read-md.o
 
 rtl1$(exeext): $(RTL_OBJS) attribs.o $(BACKEND) $(LIBDEPS)
 	+$(LLINKER) $(ALL_LINKERFLAGS) $(LDFLAGS) -o $@ \
diff --git a/gcc/rtl/rtl-errors.c b/gcc/rtl/rtl-errors.c
new file mode 100644
index 0000000..106295f
--- /dev/null
+++ b/gcc/rtl/rtl-errors.c
@@ -0,0 +1,32 @@
+/* rtl-error.c - Replacement for errors.c for use by RTL frontend
+   Copyright (C) 2016 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC 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.
+
+GCC 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 GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "errors.h"
+
+void fatal (const char *, ...)
+{
+  // TODO
+  abort ();
+}
+
+int have_error;
+
diff --git a/gcc/rtl/rtl-frontend.c b/gcc/rtl/rtl-frontend.c
index 44ef921..14ff81a 100644
--- a/gcc/rtl/rtl-frontend.c
+++ b/gcc/rtl/rtl-frontend.c
@@ -33,7 +33,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "langhooks.h"
 #include "langhooks-def.h"
 #include "common/common-target.h"
-
+#include "read-md.h"
 #include <mpfr.h>
 
 /* Language-dependent contents of a type.  */
@@ -107,8 +107,9 @@ rtl_langhook_option_lang_mask (void)
 /* Initialize the options structure.  */
 
 static void
-rtl_langhook_init_options_struct (struct gcc_options *opts)
+rtl_langhook_init_options_struct (struct gcc_options */*opts*/)
 {
+#if 0
   /* Go says that signed overflow is precisely defined.  */
   opts->x_flag_wrapv = 1;
 
@@ -138,18 +139,29 @@ rtl_langhook_init_options_struct (struct gcc_options *opts)
      by default.  In post_options we will set the debug type if the
      debug info level was not set back to 0 on the command line.  */
   opts->x_debug_info_level = DINFO_LEVEL_TERSE;
+#endif
 }
 
 static void
-rtl_langhook_parse_file (void)
+directive_handler (file_location loc, const char *name)
 {
-#if 0
-  rtl_parse_input_files (in_fnames, num_in_fnames, flag_syntax_only,
-			rtl_require_return_statement);
+  fprintf (stderr, "directive: %s\n", name);
+}
 
-  /* Final processing of globals and early debug info generation.  */
-  rtl_write_globals ();
-#endif
+static void
+rtl_langhook_parse_file (void)
+{
+  auto_vec<const char *> argv (num_in_fnames + 1);
+  argv.safe_push (progname);
+  for (unsigned i = 0; i < num_in_fnames; i++)
+    argv.safe_push (in_fnames[i]);
+  if (read_md_files (argv.length (), argv.address (), NULL,
+		     directive_handler))
+    {
+    }
+  else
+    {
+    }
 }
 
 static tree
-- 
1.8.5.3