X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gdb%2Fgdbserver%2Flinux-ia64-low.c;h=c8fa603ec7d226a4efbd7cef4c80d284610759ab;hb=623b6bdf12dec583722ca6615e5ff26581597d6c;hp=4195bb7bed345d1e2b6b1ce3ac5db9d3dcd6f69e;hpb=4c38e0a4fcb69f8586d8db0b9cdb8dbab5980811;p=deliverable%2Fbinutils-gdb.git

diff --git a/gdb/gdbserver/linux-ia64-low.c b/gdb/gdbserver/linux-ia64-low.c
index 4195bb7bed..c8fa603ec7 100644
--- a/gdb/gdbserver/linux-ia64-low.c
+++ b/gdb/gdbserver/linux-ia64-low.c
@@ -1,6 +1,6 @@
 /* GNU/Linux/IA64 specific low level interface, for the remote server for GDB.
-   Copyright (C) 1995, 1996, 1998, 1999, 2000, 2001, 2002, 2007, 2008, 2009,
-   2010 Free Software Foundation, Inc.
+   Copyright (C) 1995-1996, 1998-2002, 2007-2012 Free Software
+   Foundation, Inc.
 
    This file is part of GDB.
 
@@ -256,7 +256,7 @@ static int ia64_regmap[] =
     -1, -1, -1, -1, -1, -1, -1, -1, -1,
     PT_AR_PFS,
     PT_AR_LC,
-    -1,		/* Not available: EC, the Epilog Count register */
+    PT_AR_EC,
     -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
     -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
     -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
@@ -278,10 +278,54 @@ ia64_cannot_fetch_register (int regno)
   return 0;
 }
 
+/* GDB register numbers.  */
+#define IA64_GR0_REGNUM		0
+#define IA64_FR0_REGNUM		128
+#define IA64_FR1_REGNUM		129
+
+static int
+ia64_fetch_register (struct regcache *regcache, int regnum)
+{
+  /* r0 cannot be fetched but is always zero.  */
+  if (regnum == IA64_GR0_REGNUM)
+    {
+      const gdb_byte zero[8] = { 0 };
+
+      gdb_assert (sizeof (zero) == register_size (regnum));
+      supply_register (regcache, regnum, zero);
+      return 1;
+    }
+
+  /* fr0 cannot be fetched but is always zero.  */
+  if (regnum == IA64_FR0_REGNUM)
+    {
+      const gdb_byte f_zero[16] = { 0 };
+
+      gdb_assert (sizeof (f_zero) == register_size (regnum));
+      supply_register (regcache, regnum, f_zero);
+      return 1;
+    }
+
+  /* fr1 cannot be fetched but is always one (1.0).  */
+  if (regnum == IA64_FR1_REGNUM)
+    {
+      const gdb_byte f_one[16] =
+	{ 0, 0, 0, 0, 0, 0, 0, 0x80, 0xff, 0xff, 0, 0, 0, 0, 0, 0 };
+
+      gdb_assert (sizeof (f_one) == register_size (regnum));
+      supply_register (regcache, regnum, f_one);
+      return 1;
+    }
+
+  return 0;
+}
+
 struct linux_target_ops the_low_target = {
   init_registers_ia64,
   ia64_num_regs,
   ia64_regmap,
+  NULL,
   ia64_cannot_fetch_register,
   ia64_cannot_store_register,
+  ia64_fetch_register,
 };