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authorRoland McGrath <roland@gnu.org>2005-12-13 09:26:19 +0000
committerRoland McGrath <roland@gnu.org>2005-12-13 09:26:19 +0000
commit857a1627c75d75d0f7e3759ee94bbf2f6efa3c0c (patch)
tree7e99ad5f4fa3f8f8481b816077fa9e132ff23240 /sysdeps/powerpc
parentf0d1a3b5b7a6f9bb3d44ca3b1341b1159bf1b732 (diff)
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* sysdeps/powerpc/dl-procinfo.c: New file.
* sysdeps/powerpc/dl-procinfo.h: New file.
Diffstat (limited to 'sysdeps/powerpc')
-rw-r--r--sysdeps/powerpc/dl-procinfo.c66
-rw-r--r--sysdeps/powerpc/dl-procinfo.h75
2 files changed, 141 insertions, 0 deletions
diff --git a/sysdeps/powerpc/dl-procinfo.c b/sysdeps/powerpc/dl-procinfo.c
new file mode 100644
index 0000000000..7c1ab7bad7
--- /dev/null
+++ b/sysdeps/powerpc/dl-procinfo.c
@@ -0,0 +1,66 @@
+/* Data for processor capability information. PowerPC version.
+ Copyright (C) 2005 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, 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_powerpc_cap_flags
+#else
+PROCINFO_CLASS const char _dl_powerpc_cap_flags[16][10]
+#endif
+#ifndef PROCINFO_DECL
+= {
+ "cell", "power5+", "power5", "power4",
+ "notb", "efpdouble", "efpsingle", "spe",
+ "ucache", "4xxmac", "mmu", "fpu",
+ "altivec", "ppc601", "ppc64", "ppc32",
+ }
+#endif
+#if !defined SHARED || defined PROCINFO_DECL
+;
+#else
+,
+#endif
+
+#undef PROCINFO_DECL
+#undef PROCINFO_CLASS
diff --git a/sysdeps/powerpc/dl-procinfo.h b/sysdeps/powerpc/dl-procinfo.h
new file mode 100644
index 0000000000..8edc5e539a
--- /dev/null
+++ b/sysdeps/powerpc/dl-procinfo.h
@@ -0,0 +1,75 @@
+/* Processor capability information handling macros. PowerPC version.
+ Copyright (C) 2005 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, 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>
+#include <sysdep.h> /* This defines the PPC_FEATURE_* macros. */
+
+/* There are 16 bits used, but they are bits 16..31. */
+#define _DL_HWCAP_FIRST 16
+#define _DL_HWCAP_COUNT 32
+
+/* These bits influence library search. */
+#define HWCAP_IMPORTANT (PPC_FEATURE_HAS_ALTIVEC \
+ | PPC_FEATURE_POWER4 \
+ | PPC_FEATURE_POWER5 \
+ | PPC_FEATURE_POWER5_PLUS \
+ | PPC_FEATURE_CELL)
+
+/* We don't use AT_PLATFORM. */
+#define _DL_HWCAP_PLATFORM 0
+#define _dl_string_platform(str) (-1)
+
+static inline const char *
+__attribute__ ((unused))
+_dl_hwcap_string (int idx)
+{
+ return GLRO(dl_powerpc_cap_flags)[idx - _DL_HWCAP_FIRST];
+};
+
+static inline int
+__attribute__ ((unused))
+_dl_string_hwcap (const char *str)
+{
+ for (int i = _DL_HWCAP_FIRST; i < _DL_HWCAP_COUNT; ++i)
+ if (strcmp (str, _dl_hwcap_string (i)) == 0)
+ return i;
+ return -1;
+};
+
+#ifdef IS_IN_rtld
+static inline int
+__attribute__ ((unused))
+_dl_procinfo (int word)
+{
+ _dl_printf ("AT_HWCAP: ");
+
+ for (int i = _DL_HWCAP_FIRST; i < _DL_HWCAP_COUNT; ++i)
+ if (word & (1 << i))
+ _dl_printf (" %s", _dl_hwcap_string (i));
+
+ _dl_printf ("\n");
+
+ return 0;
+}
+#endif
+
+#endif /* dl-procinfo.h */