From d45a4bef835fdf220936541e7a08ad9734cdfc21 Mon Sep 17 00:00:00 2001
From: Jim Blandy <jimb@codesourcery.com>
Date: Mon, 23 Jan 2006 22:10:41 +0000
Subject: sim/ChangeLog: 2005-10-06  Jim Blandy  <jimb@redhat.com>

	Add simulator for Renesas M32C and M16C.

	* m32c: New directory.
	* configure.ac: Add entry for Renesas M32C.
	* configure: Regenerate.

sim/m32c/ChangeLog:
2005-10-06  Jim Blandy  <jimb@redhat.com>

	Simulator for Renesas M32C and M16C, by DJ Delorie <dj@redhat.com>,
	with further work from Jim Blandy <jimb@redhat.com> and
	Kevin Buettner <kevinb@redhat.com>.

	* ChangeLog: New.
	* Makefile.in: New.
	* blinky.S: New.
	* config.in: New.
	* configure: New.
	* configure.in: New.
	* cpu.h: New.
	* gdb-if.c: New.
	* gloss.S: New.
	* int.c: New.
	* int.h: New.
	* load.c: New.
	* load.h: New.
	* m32c.opc: New.
	* main.c: New.
	* mem.c: New.
	* mem.h: New.
	* misc.c: New.
	* misc.h: New.
	* opc2c.c: New.
	* r8c.opc: New.
	* reg.c: New.
	* safe-fgets.c: New.
	* safe-fgets.h: New.
	* sample.S: New.
	* sample.ld: New.
	* sample2.c: New.
	* srcdest.c: New.
	* syscalls.c: New.
	* syscalls.h: New.
	* trace.c: New.
	* trace.h: New.
---
 sim/m32c/safe-fgets.c | 71 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)
 create mode 100644 sim/m32c/safe-fgets.c

(limited to 'sim/m32c/safe-fgets.c')

diff --git a/sim/m32c/safe-fgets.c b/sim/m32c/safe-fgets.c
new file mode 100644
index 00000000000..19549a0f485
--- /dev/null
+++ b/sim/m32c/safe-fgets.c
@@ -0,0 +1,71 @@
+/* safe-fgets.c --- like fgets, but allocates its own static buffer.
+
+Copyright (C) 2005 Free Software Foundation, Inc.
+Contributed by Red Hat, Inc.
+
+This file is part of the GNU simulators.
+
+The GNU simulators are free software; you can redistribute them and/or
+modify them under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU simulators are distributed in the hope that they 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 the GNU simulators; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301, USA  */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "safe-fgets.h"
+
+static char *line_buf = 0;
+static int line_buf_size = 0;
+
+#define LBUFINCR 100
+
+char *
+safe_fgets (FILE *f)
+{
+  char *line_ptr;
+
+  if (line_buf == 0)
+    {
+      line_buf = (char *) malloc (LBUFINCR);
+      line_buf_size = LBUFINCR;
+    }
+
+  /* points to last byte */
+  line_ptr = line_buf + line_buf_size - 1;
+
+  /* so we can see if fgets put a 0 there */
+  *line_ptr = 1;
+  if (fgets (line_buf, line_buf_size, f) == 0)
+    return 0;
+
+  /* we filled the buffer? */
+  while (line_ptr[0] == 0 && line_ptr[-1] != '\n')
+    {
+      /* Make the buffer bigger and read more of the line */
+      line_buf_size += LBUFINCR;
+      line_buf = (char *) realloc (line_buf, line_buf_size);
+
+      /* points to last byte again */
+      line_ptr = line_buf + line_buf_size - 1;
+      /* so we can see if fgets put a 0 there */
+      *line_ptr = 1;
+
+      if (fgets (line_buf + line_buf_size - LBUFINCR - 1, LBUFINCR + 1, f) ==
+	  0)
+	return 0;
+    }
+
+  return line_buf;
+}
-- 
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