Interface definitions for functions to handle processor specific features

on Linux/Arm.
2001-03-10 06:36:09 +00:00 · 2001-03-10 06:36:09 +00:00 · 807c3437eb
parent e3a9f6bb39
commit 807c3437eb
1 changed files with 89 additions and 0 deletions
--- a/sysdeps/unix/sysv/linux/arm/dl-procinfo.h
+++ b/sysdeps/unix/sysv/linux/arm/dl-procinfo.h
@ -0,0 +1,89 @@
+/* Linux/ARM version of processor capability information handling macros.
+   Copyright (C) 2001 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Philip Blundell <philb@gnu.org>, 2001.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 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
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef _DL_PROCINFO_H
+#define _DL_PROCINFO_H	1
+
+#include <ldsodefs.h>
+
+/* If anything should be added here check whether the size of each string
+   is still ok with the given array size.  */
+extern const char _dl_arm_cap_flags[][10];
+#define _DL_HWCAP_COUNT 32
+
+/* The kernel provides platform data but it is not interesting.  */
+#define _DL_HWCAP_PLATFORM 	0
+
+
+static inline int
+__attribute__ ((unused))
+_dl_procinfo (int word)
+{
+  int i;
+
+  _dl_printf ("AT_HWCAP:   ");
+
+  for (i = 0; i < _DL_HWCAP_COUNT; ++i)
+    if (word & (1 << i))
+      _dl_printf (" %s", _dl_arm_cap_flags[i]);
+
+  _dl_printf ("\n");
+
+  return 0;
+}
+
+static inline const char *
+__attribute__ ((unused))
+_dl_hwcap_string (int idx)
+{
+  return _dl_arm_cap_flags[idx];
+};
+
+enum
+{
+  HWCAP_ARM_SWP	      = 1 << 0,
+  HWCAP_ARM_HALF      = 1 << 1,
+  HWCAP_ARM_THUMB     = 1 << 2,
+  HWCAP_ARM_26BIT     = 1 << 3,
+  HWCAP_ARM_FAST_MULT = 1 << 4,
+  HWCAP_ARM_FPA       = 1 << 5,
+  HWCAP_ARM_VFP       = 1 << 6,
+  HWCAP_ARM_EDSP      = 1 << 7,
+
+  HWCAP_IMPORTANT = (HWCAP_ARM_HALF | HWCAP_ARM_FAST_MULT)
+};
+
+static inline int
+__attribute__ ((unused))
+_dl_string_hwcap (const char *str)
+{
+  int i;
+
+  for (i = 0; i < _DL_HWCAP_COUNT; i++)
+    {
+      if (strcmp (str, _dl_arm_cap_flags[i]) == 0)
+	return i;
+    }
+  return -1;
+};
+
+#define _dl_string_platform(str) (-1)
+
+#endif /* dl-procinfo.h */