PowerPC: multiarch memset/bzero for PowerPC64

1 files changed, 56 insertions, 0 deletions

diff --git a/sysdeps/powerpc/powerpc64/multiarch/memset-ppc64.S b/sysdeps/powerpc/powerpc64/multiarch/memset-ppc64.S
new file mode 100644
index 0000000000..95b98f8834
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/multiarch/memset-ppc64.S
@@ -0,0 +1,56 @@
+/* Default memset/bzero implementation for PowerPC64.
+   Copyright (C) 2013 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sysdep.h>
+
+#if defined SHARED && !defined NOT_IN_libc
+
+/* Copied from bzero.S to prevent the linker from inserting a stub
+   between bzero and memset.  */
+ENTRY (__bzero_ppc)
+        CALL_MCOUNT 3
+        mr      r5,r4
+        li      r4,0
+        b       L(_memset)
+END_GEN_TB (__bzero_ppc,TB_TOCLESS)
+
+# undef EALIGN
+# define EALIGN(name, alignt, words)				\
+  .section ".text";						\
+  ENTRY_2(__memset_ppc)						\
+  .align ALIGNARG(alignt);					\
+  EALIGN_W_##words;						\
+  BODY_LABEL(__memset_ppc):					\
+  cfi_startproc;						\
+  LOCALENTRY(__memset_ppc)
+
+# undef END_GEN_TB
+# define END_GEN_TB(name, mask)					\
+  cfi_endproc;							\
+  TRACEBACK_MASK(__memset_ppc,mask)				\
+  END_2(__memset_ppc)
+
+# undef libc_hidden_builtin_def
+# define libc_hidden_builtin_def(name)				\
+  .globl __GI_memset; __GI_memset = __memset_ppc
+
+/* Do not implement __bzero at powerpc64/memset.S.  */
+# define NO_BZERO_IMPL
+#endif
+
+#include <sysdeps/powerpc/powerpc64/memset.S>