gdb/riscv: Use default gdbarch methods where possible

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

This change has been tested with no regressions.

gdb/ChangeLog:

	* gdb/riscv-tdep.c (riscv_dummy_id): Delete.
	(riscv_unwind_pc): Delete.
	(riscv_unwind_sp): Delete.
	(riscv_gdbarch_init): Don't register deleted functions with
	gdbarch.

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 977a138..49e312f 100644 (file)
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,13 @@
 2019-02-27  Andrew Burgess  <andrew.burgess@embecosm.com>
 
+       * gdb/riscv-tdep.c (riscv_dummy_id): Delete.
+       (riscv_unwind_pc): Delete.
+       (riscv_unwind_sp): Delete.
+       (riscv_gdbarch_init): Don't register deleted functions with
+       gdbarch.
+
+2019-02-27  Andrew Burgess  <andrew.burgess@embecosm.com>
+
        * gdb/csky-tdep.c (csky_dummy_id): Delete.
        (csky_unwind_pc): Delete.
        (csky_unwind_sp): Delete.

diff --git a/gdb/riscv-tdep.c b/gdb/riscv-tdep.c
index 3e8f564..8a996f3 100644 (file)
--- a/gdb/riscv-tdep.c
+++ b/gdb/riscv-tdep.c
@@ -2731,31 +2731,6 @@ riscv_frame_align (struct gdbarch *gdbarch, CORE_ADDR addr)
   return align_down (addr, 16);
 }
 
-/* Implement the unwind_pc gdbarch method.  */
-
-static CORE_ADDR
-riscv_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame)
-{
-  return frame_unwind_register_unsigned (next_frame, RISCV_PC_REGNUM);
-}
-
-/* Implement the unwind_sp gdbarch method.  */
-
-static CORE_ADDR
-riscv_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame)
-{
-  return frame_unwind_register_unsigned (next_frame, RISCV_SP_REGNUM);
-}
-
-/* Implement the dummy_id gdbarch method.  */
-
-static struct frame_id
-riscv_dummy_id (struct gdbarch *gdbarch, struct frame_info *this_frame)
-{
-  return frame_id_build (get_frame_register_signed (this_frame, RISCV_SP_REGNUM),
-                        get_frame_pc (this_frame));
-}
-
 /* Generate, or return the cached frame cache for the RiscV frame
    unwinder.  */
 
@@ -3193,15 +3168,10 @@ riscv_gdbarch_init (struct gdbarch_info info,
   set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
   set_gdbarch_frame_align (gdbarch, riscv_frame_align);
 
-  /* Functions to access frame data.  */
-  set_gdbarch_unwind_pc (gdbarch, riscv_unwind_pc);
-  set_gdbarch_unwind_sp (gdbarch, riscv_unwind_sp);
-
   /* Functions handling dummy frames.  */
   set_gdbarch_call_dummy_location (gdbarch, ON_STACK);
   set_gdbarch_push_dummy_code (gdbarch, riscv_push_dummy_code);
   set_gdbarch_push_dummy_call (gdbarch, riscv_push_dummy_call);
-  set_gdbarch_dummy_id (gdbarch, riscv_dummy_id);
 
   /* Frame unwinders.  Use DWARF debug info if available, otherwise use our own
      unwinder.  */