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[external/binutils.git] / gdb / gdbserver / linux-ppc64-low.c

diff --git a/gdb/gdbserver/linux-ppc64-low.c b/gdb/gdbserver/linux-ppc64-low.c
index 04022cc..4b4b869 100644 (file)
--- a/gdb/gdbserver/linux-ppc64-low.c
+++ b/gdb/gdbserver/linux-ppc64-low.c
@@ -1,13 +1,13 @@
 /* GNU/Linux/PowerPC64 specific low level interface, for the remote server for
    GDB.
-   Copyright (C) 1995, 1996, 1998, 1999, 2000, 2001, 2002, 2005
+   Copyright (C) 1995, 1996, 1998, 1999, 2000, 2001, 2002, 2005, 2007, 2008
    Free Software Foundation, Inc.
 
    This file is part of GDB.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
+   the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -16,9 +16,7 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 51 Franklin Street, Fifth Floor,
-   Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include "server.h"
 #include "linux-low.h"
@@ -111,7 +109,54 @@ static void ppc_fill_gregset (void *buf)
     collect_register (i, (char *) buf + ppc_regmap[i]);
 }
 
+#ifdef __ALTIVEC__
+
+#ifndef PTRACE_GETVRREGS
+#define PTRACE_GETVRREGS 18
+#define PTRACE_SETVRREGS 19
+#endif
+
+#define SIZEOF_VRREGS 33*16+4
+
+static void
+ppc_fill_vrregset (void *buf)
+{
+  int i, base;
+  char *regset = buf;
+
+  base = find_regno ("vr0");
+  for (i = 0; i < 32; i++)
+    collect_register (base + i, &regset[i * 16]);
+
+  collect_register_by_name ("vscr", &regset[32 * 16 + 12]);
+  collect_register_by_name ("vrsave", &regset[33 * 16]);
+}
+
+static void
+ppc_store_vrregset (const void *buf)
+{
+  int i, base;
+  const char *regset = buf;
+
+  base = find_regno ("vr0");
+  for (i = 0; i < 32; i++)
+    supply_register (base + i, &regset[i * 16]);
+
+  supply_register_by_name ("vscr", &regset[32 * 16 + 12]);
+  supply_register_by_name ("vrsave", &regset[33 * 16]);
+}
+
+#endif /* __ALTIVEC__ */
+
 struct regset_info target_regsets[] = {
+  /* List the extra register sets before GENERAL_REGS.  That way we will
+     fetch them every time, but still fall back to PTRACE_PEEKUSER for the
+     general registers.  Some kernels support these, but not the newer
+     PPC_PTRACE_GETREGS.  */
+#ifdef __ALTIVEC__
+  { PTRACE_GETVRREGS, PTRACE_SETVRREGS, SIZEOF_VRREGS, EXTENDED_REGS,
+    ppc_fill_vrregset, ppc_store_vrregset },
+#endif
   { 0, 0, 0, GENERAL_REGS, ppc_fill_gregset, NULL },
   { 0, 0, -1, -1, NULL, NULL }
 };