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Diffstat (limited to 'libgcc/config/arm/unaligned-funcs.c')
-rw-r--r--libgcc/config/arm/unaligned-funcs.c57
1 files changed, 57 insertions, 0 deletions
diff --git a/libgcc/config/arm/unaligned-funcs.c b/libgcc/config/arm/unaligned-funcs.c
new file mode 100644
index 00000000000..4e684f4fc94
--- /dev/null
+++ b/libgcc/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;
+}