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, 75 insertions, 0 deletions

diff --git a/REORG.TODO/sysdeps/x86/dl-hwcap.h b/REORG.TODO/sysdeps/x86/dl-hwcap.h
new file mode 100644
index 0000000000..c95668415a
--- /dev/null
+++ b/REORG.TODO/sysdeps/x86/dl-hwcap.h
@@ -0,0 +1,75 @@
+/* x86 version of hardware capability information handling macros.
+   Copyright (C) 2017 Free Software Foundation, Inc.
+
+   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/>.  */
+
+#ifndef _DL_HWCAP_H
+#define _DL_HWCAP_H
+
+#if IS_IN (ldconfig)
+/* Since ldconfig processes both i386 and x86-64 libraries, it needs
+   to cover all platforms and hardware capabilities.  */
+# define HWCAP_PLATFORMS_START	0
+# define HWCAP_PLATFORMS_COUNT	4
+# define HWCAP_START		0
+# define HWCAP_COUNT		2
+# define HWCAP_IMPORTANT	(HWCAP_X86_SSE2 | HWCAP_X86_AVX512_1)
+#elif defined __x86_64__
+/* For 64 bit, only cover x86-64 platforms and capabilities.  */
+# define HWCAP_PLATFORMS_START	2
+# define HWCAP_PLATFORMS_COUNT	4
+# define HWCAP_START		1
+# define HWCAP_COUNT		2
+# define HWCAP_IMPORTANT	(HWCAP_X86_AVX512_1)
+#else
+/* For 32 bit, only cover i586, i686 and SSE2.  */
+# define HWCAP_PLATFORMS_START	0
+# define HWCAP_PLATFORMS_COUNT	2
+# define HWCAP_START		0
+# define HWCAP_COUNT		1
+# define HWCAP_IMPORTANT	(HWCAP_X86_SSE2)
+#endif
+
+enum
+{
+  HWCAP_X86_SSE2		= 1 << 0,
+  HWCAP_X86_AVX512_1		= 1 << 1
+};
+
+static inline const char *
+__attribute__ ((unused))
+_dl_hwcap_string (int idx)
+{
+  return GLRO(dl_x86_hwcap_flags)[idx];
+};
+
+static inline int
+__attribute__ ((unused, always_inline))
+_dl_string_hwcap (const char *str)
+{
+  int i;
+
+  for (i = HWCAP_START; i < HWCAP_COUNT; i++)
+    {
+      if (strcmp (str, GLRO(dl_x86_hwcap_flags)[i]) == 0)
+	return i;
+    }
+  return -1;
+};
+
+/* We cannot provide a general printing function.  */
+#define _dl_procinfo(type, word) -1
+
+#endif /* dl-hwcap.h */