Imported gcc-4.4.3

[msp430-gcc.git] / gcc / config / arm / unaligned-funcs.c

diff --git a/gcc/config/arm/unaligned-funcs.c b/gcc/config/arm/unaligned-funcs.c
new file mode 100644 (file)
index 0000000..4e684f4
--- /dev/null
+++ b/gcc/config/arm/unaligned-funcs.c
@@ -0,0 +1,57 @@
+/* EABI unaligned read/write functions.
+
+   Copyright (C) 2005, 2009 Free Software Foundation, Inc.
+   Contributed by CodeSourcery, LLC.
+
+   This file 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 file 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.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+int __aeabi_uread4 (void *);
+int __aeabi_uwrite4 (int, void *);
+long long __aeabi_uread8 (void *);
+long long __aeabi_uwrite8 (long long, void *);
+
+struct __attribute__((packed)) u4 { int data; };
+struct __attribute__((packed)) u8 { long long data; };
+
+int
+__aeabi_uread4 (void *ptr)
+{
+  return ((struct u4 *) ptr)->data;
+}
+
+int
+__aeabi_uwrite4 (int data, void *ptr)
+{
+  ((struct u4 *) ptr)->data = data;
+  return data;
+}
+
+long long
+__aeabi_uread8 (void *ptr)
+{
+  return ((struct u8 *) ptr)->data;
+}
+
+long long
+__aeabi_uwrite8 (long long data, void *ptr)
+{
+  ((struct u8 *) ptr)->data = data;
+  return data;
+}