gdb/alpha: Use default gdbarch methods where possible

Make use of the default gdbarch methods for gdbarch_dummy_id, and
gdbarch_unwind_pc.

I have not tested this change but, by inspecting the code, I believe
the default methods are equivalent to the code being deleted.

gdb/ChangeLog:

	* gdb/alpha-tdep.c (alpha_dummy_id): Delete.
	(alpha_unwind_pc): Delete.
	(alpha_gdbarch_init): Don't register deleted functions with
	gdbarch.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index e06d2d9c72567e055ce456a0e48722dba9d3a9af..42742f185a44e70b2cde35a1caa1641f8f414760 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,10 @@
+2019-02-27  Andrew Burgess  <andrew.burgess@embecosm.com>
+
+       * gdb/alpha-tdep.c (alpha_dummy_id): Delete.
+       (alpha_unwind_pc): Delete.
+       (alpha_gdbarch_init): Don't register deleted functions with
+       gdbarch.
+
 2019-02-27  Andrew Burgess  <andrew.burgess@embecosm.com>
 
        * gdb/aarch64-tdep.c (aarch64_dummy_id): Delete.

diff --git a/gdb/alpha-tdep.c b/gdb/alpha-tdep.c
index 2f996e8b3d1054aa829b71c7b7ffc71afd1141e8..af9b9b974072435df2b2476edfe8ef845e623fb1 100644 (file)
--- a/gdb/alpha-tdep.c
+++ b/gdb/alpha-tdep.c
@@ -1463,29 +1463,6 @@ reinit_frame_cache_sfunc (const char *args,
 {
   reinit_frame_cache ();
 }
-
-\f
-/* Assuming NEXT_FRAME->prev is a dummy, return the frame ID of that
-   dummy frame.  The frame ID's base needs to match the TOS value
-   saved by save_dummy_frame_tos(), and the PC match the dummy frame's
-   breakpoint.  */
-
-static struct frame_id
-alpha_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame)
-{
-  ULONGEST base;
-  base = get_frame_register_unsigned (this_frame, ALPHA_SP_REGNUM);
-  return frame_id_build (base, get_frame_pc (this_frame));
-}
-
-static CORE_ADDR
-alpha_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame)
-{
-  ULONGEST pc;
-  pc = frame_unwind_register_unsigned (next_frame, ALPHA_PC_REGNUM);
-  return pc;
-}
-
 \f
 /* Helper routines for alpha*-nat.c files to move register sets to and
    from core files.  The UNIQUE pointer is allowed to be NULL, as most
@@ -1807,12 +1784,6 @@ alpha_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   /* Settings for calling functions in the inferior.  */
   set_gdbarch_push_dummy_call (gdbarch, alpha_push_dummy_call);
 
-  /* Methods for saving / extracting a dummy frame's ID.  */
-  set_gdbarch_dummy_id (gdbarch, alpha_dummy_id);
-
-  /* Return the unwound PC value.  */
-  set_gdbarch_unwind_pc (gdbarch, alpha_unwind_pc);
-
   set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
   set_gdbarch_skip_trampoline_code (gdbarch, find_solib_trampoline_target);