/* Target-dependent code for OSF/1 on Alpha.
- Copyright 2002, 2003 Free Software Foundation, Inc.
+ Copyright (C) 2002, 2003, 2007 Free Software Foundation, Inc.
This file is part of GDB.
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., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ Boston, MA 02110-1301, USA. */
#include "defs.h"
#include "frame.h"
}
static CORE_ADDR
-alpha_osf1_sigcontext_addr (struct frame_info *frame)
+alpha_osf1_sigcontext_addr (struct frame_info *next_frame)
{
- struct frame_info *next_frame = get_next_frame (frame);
+ const struct frame_id next_id = get_frame_id (next_frame);
- if (next_frame != NULL)
- return (read_memory_integer (get_frame_base (next_frame), 8));
- else
- return (read_memory_integer (get_frame_base (frame), 8));
-}
-
-/* This is the definition of CALL_DUMMY_ADDRESS. It's a heuristic that is used
- to find a convenient place in the text segment to stick a breakpoint to
- detect the completion of a target function call (ala call_function_by_hand).
- */
-
-static CORE_ADDR
-alpha_call_dummy_address (void)
-{
- CORE_ADDR entry;
- struct minimal_symbol *sym;
-
- entry = entry_point_address ();
-
- if (entry != 0)
- return entry;
-
- sym = lookup_minimal_symbol ("_Prelude", NULL, symfile_objfile);
-
- if (!sym || MSYMBOL_TYPE (sym) != mst_text)
- return 0;
- else
- return SYMBOL_VALUE_ADDRESS (sym) + 4;
+ return (read_memory_integer (next_id.stack_addr, 8));
}
static void
{
struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
- set_gdbarch_pc_in_sigtramp (gdbarch, alpha_osf1_pc_in_sigtramp);
+ /* Hook into the MDEBUG frame unwinder. */
+ alpha_mdebug_init_abi (info, gdbarch);
+
/* The next/step support via procfs on OSF1 is broken when running
on multi-processor machines. We need to use software single stepping
instead. */
set_gdbarch_software_single_step (gdbarch, alpha_software_single_step);
- /* Alpha OSF/1 inhibits execution of code on the stack. But there is
- no need for a dummy on the Alpha. PUSH_ARGUMENTS takes care of all
- argument handling and bp_call_dummy takes care of stopping the dummy. */
- set_gdbarch_call_dummy_address (gdbarch, alpha_call_dummy_address);
-
tdep->sigcontext_addr = alpha_osf1_sigcontext_addr;
+ tdep->pc_in_sigtramp = alpha_osf1_pc_in_sigtramp;
tdep->jb_pc = 2;
tdep->jb_elt_size = 8;