Prepare for radical source tree reorganization.zack/build-layout-experiment

All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).

1 files changed, 89 insertions, 0 deletions

diff --git a/REORG.TODO/sysdeps/i386/i686/multiarch/memmove.S b/REORG.TODO/sysdeps/i386/i686/multiarch/memmove.S
new file mode 100644
index 0000000000..6eb418ca7f
--- /dev/null
+++ b/REORG.TODO/sysdeps/i386/i686/multiarch/memmove.S
@@ -0,0 +1,89 @@
+/* Multiple versions of memmove
+   All versions must be listed in ifunc-impl-list.c.
+   Copyright (C) 2010-2017 Free Software Foundation, Inc.
+   Contributed by Intel Corporation.
+   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>
+#include <init-arch.h>
+
+/* Define multiple versions only for the definition in lib.  */
+#if IS_IN (libc)
+	.text
+ENTRY(memmove)
+	.type	memmove, @gnu_indirect_function
+	LOAD_GOT_AND_RTLD_GLOBAL_RO
+	LOAD_FUNC_GOT_EAX (__memmove_ia32)
+	HAS_CPU_FEATURE (SSE2)
+	jz	2f
+	LOAD_FUNC_GOT_EAX (__memmove_sse2_unaligned)
+	HAS_ARCH_FEATURE (Fast_Unaligned_Load)
+	jnz	2f
+	HAS_CPU_FEATURE (SSSE3)
+	jz	2f
+	LOAD_FUNC_GOT_EAX (__memmove_ssse3)
+	HAS_ARCH_FEATURE (Fast_Rep_String)
+	jz	2f
+	LOAD_FUNC_GOT_EAX (__memmove_ssse3_rep)
+2:	ret
+END(memmove)
+
+# ifdef SHARED
+#  undef ENTRY
+#  define ENTRY(name) \
+	.type __memmove_ia32, @function; \
+	.p2align 4; \
+	.globl __memmove_ia32; \
+	.hidden __memmove_ia32; \
+	__memmove_ia32: cfi_startproc; \
+	CALL_MCOUNT
+# else
+#  undef ENTRY
+#  define ENTRY(name) \
+	.type __memmove_ia32, @function; \
+	.globl __memmove_ia32; \
+	.p2align 4; \
+	__memmove_ia32: cfi_startproc; \
+	CALL_MCOUNT
+# endif
+
+# undef END
+# define END(name) \
+	cfi_endproc; .size __memmove_ia32, .-__memmove_ia32
+
+# undef ENTRY_CHK
+# define ENTRY_CHK(name) \
+	.type __memmove_chk_ia32, @function; \
+	.globl __memmove_chk_ia32; \
+	.p2align 4; \
+	__memmove_chk_ia32: cfi_startproc; \
+	CALL_MCOUNT
+# undef END_CHK
+# define END_CHK(name) \
+	cfi_endproc; .size __memmove_chk_ia32, .-__memmove_chk_ia32
+
+# ifdef SHARED
+#  undef libc_hidden_builtin_def
+/* IFUNC doesn't work with the hidden functions in shared library since
+   they will be called without setting up EBX needed for PLT which is
+   used by IFUNC.  */
+#  define libc_hidden_builtin_def(name) \
+	.globl __GI_memmove; __GI_memmove = __memmove_ia32
+# endif
+#endif
+
+#include "../memmove.S"