Fia x comment typo.

[deliverable/binutils-gdb.git] / gdb / alpha-osf1-tdep.c

diff --git a/gdb/alpha-osf1-tdep.c b/gdb/alpha-osf1-tdep.c
index 29b5c08ed5d3ed9154905f533ea962facb8116e2..c1011c5109fd934169f2540ea895559440e55fba 100644 (file)
--- a/gdb/alpha-osf1-tdep.c
+++ b/gdb/alpha-osf1-tdep.c
@@ -37,32 +37,12 @@ alpha_osf1_pc_in_sigtramp (CORE_ADDR pc, char *func_name)
 static CORE_ADDR
 alpha_osf1_sigcontext_addr (struct frame_info *frame)
 {
-  return (read_memory_integer (frame->next ? frame->next->frame
-                                          : frame->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;
+  struct frame_info *next_frame = get_next_frame (frame);
 
-  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;
+  if (next_frame != NULL)
+    return (read_memory_integer (get_frame_base (next_frame), 8));
   else
-    return SYMBOL_VALUE_ADDRESS (sym) + 4;
+    return (read_memory_integer (get_frame_base (frame), 8));
 }
 
 static void
@@ -71,17 +51,15 @@ alpha_osf1_init_abi (struct gdbarch_info info,
 {
   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
 
+  /* Hook into the MDEBUG frame unwinder.  */
+  alpha_mdebug_init_abi (info, gdbarch);
+
   set_gdbarch_pc_in_sigtramp (gdbarch, alpha_osf1_pc_in_sigtramp);
   /* 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->jb_pc = 2;