Clean up the D10V port so that GDB and the target program no

longer disagree on how big pointers are.
* findvar.c (value_from_register): Remove special case code for D10V.
* printcmd.c (print_frame_args): Same.
* valops.c (value_at, value_fetch_lazy): Same.
* values.c (unpack_long): Same.
* gdbarch.sh: Changes to effect the following:
* gdbarch.h (GDB_TARGET_IS_D10V, D10V_MAKE_DADDR,
gdbarch_d10v_make_daddr_ftype, gdbarch_d10v_make_daddr,
set_gdbarch_d10v_make_daddr, D10V_MAKE_IADDR,
gdbarch_d10v_make_iaddr_ftype, gdbarch_d10v_make_iaddr,
set_gdbarch_d10v_make_iaddr, D10V_DADDR_P,
gdbarch_d10v_daddr_p_ftype, gdbarch_d10v_daddr_p,
set_gdbarch_d10v_daddr_p, D10V_IADDR_P,
gdbarch_d10v_iaddr_p_ftype, gdbarch_d10v_iaddr_p,
set_gdbarch_d10v_iaddr_p, D10V_CONVERT_DADDR_TO_RAW,
gdbarch_d10v_convert_daddr_to_raw_ftype,
gdbarch_d10v_convert_daddr_to_raw,
set_gdbarch_d10v_convert_daddr_to_raw, D10V_CONVERT_IADDR_TO_RAW,
gdbarch_d10v_convert_iaddr_to_raw_ftype,
gdbarch_d10v_convert_iaddr_to_raw,
set_gdbarch_d10v_convert_iaddr_to_raw): Delete declarations.
* gdbarch.c: Delete the corresponding definitions.
(struct gdbarch): Delete members d10v_make_daddr,
d10v_make_iaddr, d10v_daddr_p, d10v_iaddr_p,
d10v_convert_daddr_to_raw, and d10v_convert_iaddr_to_raw.
(startup_gdbarch): Remove initializers for the above.
(verify_gdbarch, gdbarch_dump): Don't verify or dump them any
more.
* d10v-tdep.c (d10v_register_virtual_type): Rather that
claiming the stack pointer and PC are 32 bits long (which they
aren't), say that the stack pointer is an int16_t, and the
program counter is a function pointer.  This allows the rest
of GDB to make the appropriate conversions between the code
pointer format and real addresses.
(d10v_register_convertible, d10v_register_convert_to_virtual,
d10v_register_convert_to_raw): Delete function; no registers
are convertible now, so we use
generic_register_convertible_not instead.
(d10v_address_to_pointer, d10v_pointer_to_address): New gdbarch
methods.
(d10v_push_arguments, d10v_extract_return_value): Remove special
cases for code and data pointers.
(d10v_gdbarch_init): Set gdbarch_ptr_bit to 16, so that GDB and
the target agree on how large pointers are.  Say that addresses
are 32 bits long.  Register the address_to_pointer and
pointer_to_address conversion functions.  Since no registers are
convertible now, register generic_register_convertible_not as the
gdbarch_register_convertible method instead of
d10v_register_convertible.  Remove registrations for
d10v_register_convert_to_virtual,
d10v_register_convert_to_raw, gdbarch_d10v_make_daddr,
gdbarch_d10v_make_iaddr, gdbarch_d10v_daddr_p,
gdbarch_d10v_iaddr_p, gdbarch_d10v_convert_daddr_to_raw, and
gdbarch_d10v_convert_iaddr_to_raw.

1 files changed, 0 insertions, 23 deletions

diff --git a/gdb/findvar.c b/gdb/findvar.c
index c5bf507..8faf2f1 100644
--- a/gdb/findvar.c
+++ b/gdb/findvar.c
@@ -729,11 +729,6 @@ value_from_register (struct type *type, int regnum, struct frame_info *frame)
   CHECK_TYPEDEF (type);
   len = TYPE_LENGTH (type);
 
-  /* Pointers on D10V are really only 16 bits, 
-     but we lie to gdb elsewhere... */
-  if (GDB_TARGET_IS_D10V && TYPE_CODE (type) == TYPE_CODE_PTR)
-    len = 2;
-
   VALUE_REGNO (v) = regnum;
 
   num_storage_locs = (len > REGISTER_VIRTUAL_SIZE (regnum) ?
@@ -933,24 +928,6 @@ value_from_register (struct type *type, int regnum, struct frame_info *frame)
       memcpy (VALUE_CONTENTS_RAW (v), raw_buffer + VALUE_OFFSET (v), len);
     }
 
-  if (GDB_TARGET_IS_D10V
-      && TYPE_CODE (type) == TYPE_CODE_PTR)
-    {
-      unsigned long num;
-      unsigned short snum;
-
-      snum = (unsigned short)
-	extract_unsigned_integer (VALUE_CONTENTS_RAW (v), 2);
-
-      if (TYPE_TARGET_TYPE (type)	  /* pointer to function */
-	  && (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_FUNC))
-	num = D10V_MAKE_IADDR (snum);
-      else 				  /* pointer to data */
-	num = D10V_MAKE_DADDR (snum);
-
-      store_address (VALUE_CONTENTS_RAW (v), 4, num);
-    }
-
   return v;
 }