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/d-valprint.c b/gdb/d-valprint.c
index 620688b..109b54f 100644
--- a/gdb/d-valprint.c
+++ b/gdb/d-valprint.c
@@ -28,10 +28,10 @@
    TYPE is a dynamic array, non-zero otherwise.  */
 
 static int
-dynamic_array_type (struct type *type, const gdb_byte *valaddr,
+dynamic_array_type (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)
 {
   if (TYPE_NFIELDS (type) == 2
@@ -48,6 +48,7 @@ dynamic_array_type (struct type *type, const gdb_byte *valaddr,
       struct type *ptr_type;
       struct value *ival;
       int length;
+      const gdb_byte *valaddr = value_contents_for_printing (val);
 
       length = unpack_field_as_long (type, valaddr + embedded_offset, 0);
 
@@ -63,7 +64,6 @@ dynamic_array_type (struct type *type, const gdb_byte *valaddr,
       true_type = value_type (ival);
 
       d_val_print (true_type,
-		   value_contents_for_printing (ival),
 		   value_embedded_offset (ival), addr,
 		   stream, recurse + 1, ival, options);
       return 0;
@@ -73,9 +73,9 @@ dynamic_array_type (struct type *type, const gdb_byte *valaddr,
 
 /* Implements the la_val_print routine for language D.  */
 void
-d_val_print (struct type *type, const gdb_byte *valaddr, int embedded_offset,
+d_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)
 {
   int ret;
@@ -84,12 +84,12 @@ d_val_print (struct type *type, const gdb_byte *valaddr, int embedded_offset,
   switch (TYPE_CODE (type))
     {
       case TYPE_CODE_STRUCT:
-        ret = dynamic_array_type (type, valaddr, embedded_offset, address,
+	ret = dynamic_array_type (type, embedded_offset, address,
 				  stream, recurse, val, options);
 	if (ret == 0)
 	  break;
       default:
-	c_val_print (type, valaddr, embedded_offset, address, stream,
+	c_val_print (type, embedded_offset, address, stream,
 		     recurse, val, options);
     }
 }