007-06-29 Martin Schwidefsky <schwidefsky@de.ibm.com>

	* sysdeps/s390/dl-procinfo.c: New file.
	* sysdeps/s390/dl-procinfo.h: New file.
	* sysdeps/unix/sysv/linux/s390/dl-procinfo.h: New file.

3 files changed, 222 insertions, 0 deletions

diff --git a/sysdeps/s390/dl-procinfo.c b/sysdeps/s390/dl-procinfo.c
new file mode 100644
index 0000000000..32c6aef951
--- /dev/null
+++ b/sysdeps/s390/dl-procinfo.c
@@ -0,0 +1,80 @@
+/* Data for s390 version of processor capability information.
+   Copyright (C) 2006 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2006.
+
+   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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+/* This information must be kept in sync with the _DL_HWCAP_COUNT and
+   _DL_PLATFORM_COUNT definitions in procinfo.h.
+
+   If anything should be added here check whether the size of each string
+   is still ok with the given array size.
+
+   All the #ifdefs in the definitions are quite irritating but
+   necessary if we want to avoid duplicating the information.  There
+   are three different modes:
+
+   - PROCINFO_DECL is defined.  This means we are only interested in
+     declarations.
+
+   - PROCINFO_DECL is not defined:
+
+     + if SHARED is defined the file is included in an array
+       initializer.  The .element = { ... } syntax is needed.
+
+     + if SHARED is not defined a normal array initialization is
+       needed.
+  */
+
+#ifndef PROCINFO_CLASS
+# define PROCINFO_CLASS
+#endif
+
+#if !defined PROCINFO_DECL && defined SHARED
+  ._dl_s390_cap_flags
+#else
+PROCINFO_CLASS const char _dl_s390_cap_flags[7][6]
+#endif
+#ifndef PROCINFO_DECL
+= {
+     "esan3", "zarch", "stfle", "msa", "ldisp", "eimm", "dfp"
+  }
+#endif
+#if !defined SHARED || defined PROCINFO_DECL
+;
+#else
+,
+#endif
+
+#if !defined PROCINFO_DECL && defined SHARED
+  ._dl_s390_platforms
+#else
+PROCINFO_CLASS const char _dl_s390_platforms[4][7]
+#endif
+#ifndef PROCINFO_DECL
+= {
+     "g5", "z900", "z990", "z9-109"
+  }
+#endif
+#if !defined SHARED || defined PROCINFO_DECL
+;
+#else
+,
+#endif
+
+#undef PROCINFO_DECL
+#undef PROCINFO_CLASS
diff --git a/sysdeps/s390/dl-procinfo.h b/sysdeps/s390/dl-procinfo.h
new file mode 100644
index 0000000000..178d7cc017
--- /dev/null
+++ b/sysdeps/s390/dl-procinfo.h
@@ -0,0 +1,99 @@
+/* s390 version of processor capability information handling macros.
+   Copyright (C) 2006 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2006.
+
+   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, 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>
+
+#define _DL_HWCAP_COUNT 7
+
+#define _DL_PLATFORMS_COUNT	4
+
+/* The kernel provides up to 32 capability bits with elf_hwcap.  */
+#define _DL_FIRST_PLATFORM	32
+/* Mask to filter out platforms.  */
+#define _DL_HWCAP_PLATFORM	(((1ULL << _DL_PLATFORMS_COUNT) - 1) \
+				 << _DL_FIRST_PLATFORM)
+
+/* Hardware capablity bit numbers are derived directly from the
+   facility indications as stored by the "store facility list" (STFL)
+   instruction.  */
+
+enum
+{
+  HWCAP_S390_ESAN3 = 1 << 0,
+  HWCAP_S390_ZARCH = 1 << 1,
+  HWCAP_S390_STFLE = 1 << 2,
+  HWCAP_S390_MSA = 1 << 3,
+  HWCAP_S390_LDISP = 1 << 4,
+  HWCAP_S390_EIMM = 1 << 5,
+  HWCAP_S390_DFP = 1 << 6,
+};
+
+#define HWCAP_IMPORTANT (HWCAP_S390_ZARCH | HWCAP_S390_LDISP \
+			  | HWCAP_S390_EIMM | HWCAP_S390_DFP)
+
+/* We cannot provide a general printing function.  */
+#define _dl_procinfo(word) -1
+
+static inline const char *
+__attribute__ ((unused))
+_dl_hwcap_string (int idx)
+{
+  return GLRO(dl_s390_cap_flags)[idx];
+};
+
+static inline const char *
+__attribute__ ((unused))
+_dl_platform_string (int idx)
+{
+  return GLRO(dl_s390_platforms)[idx - _DL_FIRST_PLATFORM];
+};
+
+static inline int
+__attribute__ ((unused, always_inline))
+_dl_string_hwcap (const char *str)
+{
+  int i;
+
+  for (i = 0; i < _DL_HWCAP_COUNT; i++)
+    {
+      if (strcmp (str, GLRO(dl_s390_cap_flags)[i]) == 0)
+	return i;
+    }
+  return -1;
+};
+
+static inline int
+__attribute__ ((unused, always_inline))
+_dl_string_platform (const char *str)
+{
+  int i;
+
+  if (str != NULL)
+    for (i = 0; i < _DL_PLATFORMS_COUNT; ++i)
+      {
+	if (strcmp (str, GLRO(dl_s390_platforms)[i]) == 0)
+	  return _DL_FIRST_PLATFORM + i;
+      }
+  return -1;
+};
+
+#endif /* dl-procinfo.h */
diff --git a/sysdeps/unix/sysv/linux/s390/dl-procinfo.h b/sysdeps/unix/sysv/linux/s390/dl-procinfo.h
new file mode 100644
index 0000000000..3eeb529053
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/s390/dl-procinfo.h
@@ -0,0 +1,43 @@
+/* Linux/s390 version of processor capability information handling macros.
+   Copyright (C) 2006 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com>, 2006.
+
+   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, write to the Free
+   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <sysdeps/s390/dl-procinfo.h>
+#include <ldsodefs.h>
+
+
+#undef _dl_procinfo
+static inline int
+__attribute__ ((unused))
+_dl_procinfo (int word)
+{
+  /* This table should match the information from arch/s390/kernel/setup.c
+     in the kernel sources.  */
+  int i;
+
+  _dl_printf ("AT_HWCAP:   ");
+
+  for (i = 0; i < _DL_HWCAP_COUNT; ++i)
+    if (word & (1UL << i))
+      _dl_printf (" %s", GLRO(dl_s390_cap_flags)[i]);
+
+  _dl_printf ("\n");
+
+  return 0;
+}