gdb

[deliverable/binutils-gdb.git] / gdb / hppa-tdep.c

diff --git a/gdb/hppa-tdep.c b/gdb/hppa-tdep.c
index 334870fe50733b465d81aeb5628f91a6f801523e..7f7fb8ed8ed55048649633ab3684143c70bc42d0 100644 (file)
--- a/gdb/hppa-tdep.c
+++ b/gdb/hppa-tdep.c
@@ -1,8 +1,7 @@
 /* Target-dependent code for the HP PA-RISC architecture.
 
-   Copyright (C) 1986, 1987, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
-   1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010,
-   2011 Free Software Foundation, Inc.
+   Copyright (C) 1986-1987, 1989-1996, 1998-2005, 2007-2012 Free
+   Software Foundation, Inc.
 
    Contributed by the Center for Software Science at the
    University of Utah (pa-gdb-bugs@cs.utah.edu).
@@ -2225,6 +2224,7 @@ hppa_frame_unwind_sniffer (const struct frame_unwind *self,
 static const struct frame_unwind hppa_frame_unwind =
 {
   NORMAL_FRAME,
+  default_frame_unwind_stop_reason,
   hppa_frame_this_id,
   hppa_frame_prev_register,
   NULL,
@@ -2335,6 +2335,7 @@ hppa_fallback_frame_prev_register (struct frame_info *this_frame,
 static const struct frame_unwind hppa_fallback_frame_unwind =
 {
   NORMAL_FRAME,
+  default_frame_unwind_stop_reason,
   hppa_fallback_frame_this_id,
   hppa_fallback_frame_prev_register,
   NULL,
@@ -2431,6 +2432,7 @@ hppa_stub_unwind_sniffer (const struct frame_unwind *self,
 
 static const struct frame_unwind hppa_stub_frame_unwind = {
   NORMAL_FRAME,
+  default_frame_unwind_stop_reason,
   hppa_stub_frame_this_id,
   hppa_stub_frame_prev_register,
   NULL,
@@ -2665,17 +2667,22 @@ hppa_fetch_pointer_argument (struct frame_info *frame, int argi,
   return get_frame_register_unsigned (frame, HPPA_R0_REGNUM + 26 - argi);
 }
 
-static void
+static enum register_status
 hppa_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache,
                           int regnum, gdb_byte *buf)
 {
-    enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
-    ULONGEST tmp;
+  enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
+  ULONGEST tmp;
+  enum register_status status;
 
-    regcache_raw_read_unsigned (regcache, regnum, &tmp);
-    if (regnum == HPPA_PCOQ_HEAD_REGNUM || regnum == HPPA_PCOQ_TAIL_REGNUM)
-      tmp &= ~0x3;
-    store_unsigned_integer (buf, sizeof tmp, byte_order, tmp);
+  status = regcache_raw_read_unsigned (regcache, regnum, &tmp);
+  if (status == REG_VALID)
+    {
+      if (regnum == HPPA_PCOQ_HEAD_REGNUM || regnum == HPPA_PCOQ_TAIL_REGNUM)
+       tmp &= ~0x3;
+      store_unsigned_integer (buf, sizeof tmp, byte_order, tmp);
+    }
+  return status;
 }
 
 static CORE_ADDR