Remove parameter valaddr from la_val_print

Nowadays, we pass both val and return value of
value_contents_for_printing (val) to la_val_print.  The latter is
unnecessary.  This patch removes the second parameter of la_val_print,
and get valaddr in each language's implementation by calling
value_contents_for_printing.  Since value_contents_for_printing calls
value_fetch_lazy, I also make VAL non-const.

Note that
 - I don't clean up the valaddr usages in each language's routines,
 - I don't remove valaddr from apply_ext_lang_val_pretty_printer, and
   extension language ops apply_val_pretty_printer.

They can be done in followup patches.

gdb:

2016-11-08  Yao Qi  <yao.qi@linaro.org>

	* ada-lang.h (ada_val_print): Remove second parameter.  Remove
	const from "struct value *".
	* ada-valprint.c (print_field_values): Remove const from
	"struct value *".
	(val_print_packed_array_elements): Likewise.
	(print_variant_part): Likewise.
	(ada_val_print_string): Likewise.
	(ada_val_print_gnat_array): Likewise.
	(ada_val_print_ptr): Likewise.
	(ada_val_print_num): Likewise.
	(ada_val_print_enum): Likewise.
	(ada_val_print_flt): Likewise.
	(ada_val_print_union): Likewise.
	(ada_val_print_struct_union): Likewise.
	(ada_val_print_ref): Likewise.
	(ada_val_print_1): Remove second parameter.  Remove const from
	"struct value *".
	(ada_val_print): Likewise.
	* c-lang.h (c_val_print): Likewise.
	* c-valprint.c (c_val_print_array): Remove const from
	"struct value *".
	(c_val_print_ptr): Likewise.
	(c_val_print_struct): Likewise.
	(c_val_print_union): Likewise.
	(c_val_print_int): Likewise.
	(c_val_print_memberptr): Likewise.
	(c_val_print): Remove second parameter.  Remove const from
	"struct value *".  All callers updated.
	* cp-valprint.c (cp_print_value): Remove const from
	"struct value *".
	(cp_print_value_fields): Likewise.
	(c_val_print_value): Likewise.
	* d-lang.h (d_val_print): Remove second parameter.  Remove const
	from "struct value *".
	* d-valprint.c (dynamic_array_type): Likewise.
	(d_val_print): Likewise.
	* f-lang.h (f_val_print): Likewise.
	* f-valprint.c (f_val_print): Likewise.
	* go-lang.h (go_val_print): Likewise.
	* go-valprint.c (print_go_string): Likewise.
	(go_val_print): Likewise.
	* language.c (unk_lang_val_print): Likewise.
	* language.h (struct language_defn) <la_val_print>: Likewise.
	Update comments.
	(LA_VAL_PRINT): Remove.
	* m2-lang.h (m2_val_print): Remove const from
	"struct value *".
	* m2-valprint.c (m2_print_array_contents): Likewise.
	(m2_val_print): Likewise.
	* p-lang.h (pascal_val_print): Remove second parameter.  Remove
	const from "struct value *".
	(pascal_object_print_value_fields): Likewise.
	* p-valprint.c (pascal_val_print): Likewise.
	(pascal_object_print_value_fields): Likewise.
	(pascal_object_print_value): Likewise.
	* rust-lang.c (rust_get_disr_info): Likewise.
	(val_print_struct): Likewise.
	(rust_val_print): Likewise.
	* valprint.c (generic_val_print_array): Likewise.
	(generic_val_print_ptr): Likewise.
	(generic_val_print_memberptr): Likewise.
	(generic_val_print_ref): Likewise.
	(generic_val_print_enum): Likewise.
	(generic_val_print_flags): Likewise.
	(generic_val_print_func): Likewise.
	(generic_val_print_bool): Likewise.
	(generic_val_print_int): Likewise.
	(generic_val_print_char): Likewise.
	(generic_val_print_float): Likewise.
	(generic_val_print_decfloat): Likewise.
	(generic_val_print_complex): Likewise.
	(generic_val_print): Likewise.
	(val_print): Likewise.
	(common_val_print): Likewise.
	(val_print_type_code_flags): Likewise.
	(val_print_scalar_formatted): Likewise.
	(val_print_array_elements): Likewise.
	* valprint.h (val_print_array_elements): Update declaration.
	(val_print_scalar_formatted): Likewise.
	(generic_val_print): Likewise.
	* value.h (val_print): Likewise.

1 files changed, 7 insertions, 7 deletions

diff --git a/gdb/go-valprint.c b/gdb/go-valprint.c
index 34ed8e0..ad954c1 100644
--- a/gdb/go-valprint.c
+++ b/gdb/go-valprint.c
@@ -36,10 +36,10 @@
    gdb_assert (go_classify_struct_type (type) == GO_TYPE_STRING).  */
 
 static void
-print_go_string (struct type *type, const gdb_byte *valaddr,
+print_go_string (struct type *type,
 		 LONGEST embedded_offset, CORE_ADDR address,
 		 struct ui_file *stream, int recurse,
-		 const struct value *val,
+		 struct value *val,
 		 const struct value_print_options *options)
 {
   struct gdbarch *gdbarch = get_type_arch (type);
@@ -51,8 +51,8 @@ print_go_string (struct type *type, const gdb_byte *valaddr,
      unpack_value_field_as_pointer.  Do this until we can get
      unpack_value_field_as_pointer.  */
   LONGEST addr;
+  const gdb_byte *valaddr = value_contents_for_printing (val);
 
-  gdb_assert (valaddr == value_contents_for_printing_const (val));
 
   if (! unpack_value_field_as_long (type, valaddr, embedded_offset, 0,
 				    val, &addr))
@@ -86,9 +86,9 @@ print_go_string (struct type *type, const gdb_byte *valaddr,
 /* Implements the la_val_print routine for language Go.  */
 
 void
-go_val_print (struct type *type, const gdb_byte *valaddr, int embedded_offset,
+go_val_print (struct type *type, int embedded_offset,
 	      CORE_ADDR address, struct ui_file *stream, int recurse,
-	      const struct value *val,
+	      struct value *val,
 	      const struct value_print_options *options)
 {
   type = check_typedef (type);
@@ -104,7 +104,7 @@ go_val_print (struct type *type, const gdb_byte *valaddr, int embedded_offset,
 	    case GO_TYPE_STRING:
 	      if (! options->raw)
 		{
-		  print_go_string (type, valaddr, embedded_offset, address,
+		  print_go_string (type, embedded_offset, address,
 				   stream, recurse, val, options);
 		  return;
 		}
@@ -116,7 +116,7 @@ go_val_print (struct type *type, const gdb_byte *valaddr, int embedded_offset,
 	/* Fall through.  */
 
       default:
-	c_val_print (type, valaddr, embedded_offset, address, stream,
+	c_val_print (type, embedded_offset, address, stream,
 		     recurse, val, options);
 	break;
     }