gdb

* scm-lang.c (scm_language_defn): Update.
	* p-typeprint.c (pascal_print_typedef): New function.
	* p-lang.h: (pascal_print_typedef): Declare.
	* p-lang.c (pascal_language_defn): Update.
	* objc-lang.c (objc_language_defn): Update.
	* m2-typeprint.c (m2_print_typedef): New function.
	* m2-lang.h (m2_print_typedef): Declare.
	* m2-lang.c (m2_language_defn): Update.
	* language.h (_LANG_c, _LANG_m2, _LANG_fortran, _LANG_pascal):
	Remove.
	(struct language_defn) <la_print_typedef>: New field.
	(default_print_typedef): Declare.
	(LA_PRINT_TYPEDEF): New define.
	* language.c (unknown_language_defn): Update.
	(auto_language_defn): Update.
	(local_language_defn): Update.
	* jv-lang.c (java_language_defn): Update.
	* f-lang.c (f_language_defn): Update.
	* c-typeprint.c (c_print_typedef): New function.
	* c-lang.h (c_print_typedef): Declare.
	* c-lang.c (c_language_defn): Update.
	(cplus_language_defn): Update.
	(asm_language_defn): Update.
	(minimal_language_defn): Update.
	* ada-lang.c (ada_language_defn): Update.
	* typeprint.c (default_print_typedef): New function.
gdb/doc
	* gdbint.texinfo (Language Support): Remove text about omitting
	support for a language.

gdb/ChangeLog

@@ -1,3 +1,32 @@
+2008-09-27  Tom Tromey  <tromey@redhat.com>
+
+	* scm-lang.c (scm_language_defn): Update.
+	* p-typeprint.c (pascal_print_typedef): New function.
+	* p-lang.h: (pascal_print_typedef): Declare.
+	* p-lang.c (pascal_language_defn): Update.
+	* objc-lang.c (objc_language_defn): Update.
+	* m2-typeprint.c (m2_print_typedef): New function.
+	* m2-lang.h (m2_print_typedef): Declare.
+	* m2-lang.c (m2_language_defn): Update.
+	* language.h (_LANG_c, _LANG_m2, _LANG_fortran, _LANG_pascal):
+	Remove.
+	(struct language_defn) <la_print_typedef>: New field.
+	(default_print_typedef): Declare.
+	(LA_PRINT_TYPEDEF): New define.
+	* language.c (unknown_language_defn): Update.
+	(auto_language_defn): Update.
+	(local_language_defn): Update.
+	* jv-lang.c (java_language_defn): Update.
+	* f-lang.c (f_language_defn): Update.
+	* c-typeprint.c (c_print_typedef): New function.
+	* c-lang.h (c_print_typedef): Declare.
+	* c-lang.c (c_language_defn): Update.
+	(cplus_language_defn): Update.
+	(asm_language_defn): Update.
+	(minimal_language_defn): Update.
+	* ada-lang.c (ada_language_defn): Update.
+	* typeprint.c (default_print_typedef): New function.
+
 2008-09-27  Tom Tromey  <tromey@redhat.com>
 
 	* jv-exp.y (insert_exp): Define using ISO syntax.

gdb/ada-lang.c

@@ -10943,6 +10943,7 @@ const struct language_defn ada_language_defn = {
   ada_printstr,                 /* Function to print string constant */
   emit_char,                    /* Function to print single char (not used) */
   ada_print_type,               /* Print a type using appropriate syntax */
+  default_print_typedef,	/* Print a typedef using appropriate syntax */
   ada_val_print,                /* Print a value using appropriate syntax */
   ada_value_print,              /* Print a top-level value */
   NULL,                         /* Language specific skip_trampoline */

gdb/c-lang.c

@@ -400,6 +400,7 @@ const struct language_defn c_language_defn =
   c_printstr,			/* Function to print string constant */
   c_emit_char,			/* Print a single char */
   c_print_type,			/* Print a type using appropriate syntax */
+  c_print_typedef,		/* Print a typedef using appropriate syntax */
   c_val_print,			/* Print a value using appropriate syntax */
   c_value_print,		/* Print a top-level value */
   NULL,				/* Language specific skip_trampoline */
@@ -516,6 +517,7 @@ const struct language_defn cplus_language_defn =
   c_printstr,			/* Function to print string constant */
   c_emit_char,			/* Print a single char */
   c_print_type,			/* Print a type using appropriate syntax */
+  c_print_typedef,		/* Print a typedef using appropriate syntax */
   c_val_print,			/* Print a value using appropriate syntax */
   c_value_print,		/* Print a top-level value */
   cplus_skip_trampoline,	/* Language specific skip_trampoline */
@@ -551,6 +553,7 @@ const struct language_defn asm_language_defn =
   c_printstr,			/* Function to print string constant */
   c_emit_char,			/* Print a single char */
   c_print_type,			/* Print a type using appropriate syntax */
+  c_print_typedef,		/* Print a typedef using appropriate syntax */
   c_val_print,			/* Print a value using appropriate syntax */
   c_value_print,		/* Print a top-level value */
   NULL,				/* Language specific skip_trampoline */
@@ -591,6 +594,7 @@ const struct language_defn minimal_language_defn =
   c_printstr,			/* Function to print string constant */
   c_emit_char,			/* Print a single char */
   c_print_type,			/* Print a type using appropriate syntax */
+  c_print_typedef,		/* Print a typedef using appropriate syntax */
   c_val_print,			/* Print a value using appropriate syntax */
   c_value_print,		/* Print a top-level value */
   NULL,				/* Language specific skip_trampoline */

gdb/c-lang.h

@@ -37,6 +37,8 @@ extern void c_error (char *);	/* Defined in c-exp.y */
 extern void c_print_type (struct type *, char *, struct ui_file *, int,
 			  int);
 
+extern void c_print_typedef (struct type *, struct symbol *, struct ui_file *);
+
 extern int c_val_print (struct type *, const gdb_byte *, int, CORE_ADDR,
 			struct ui_file *, int, int, int,
 			enum val_prettyprint);

gdb/c-typeprint.c

@@ -97,6 +97,24 @@ c_print_type (struct type *type, char *varstring, struct ui_file *stream,
     }
 }
 
+/* Print a typedef using C syntax.  TYPE is the underlying type.
+   NEW_SYMBOL is the symbol naming the type.  STREAM is the stream on
+   which to print.  */
+
+void
+c_print_typedef (struct type *type, struct symbol *new_symbol,
+		 struct ui_file *stream)
+{
+  CHECK_TYPEDEF (type);
+  fprintf_filtered (stream, "typedef ");
+  type_print (type, "", stream, 0);
+  if (TYPE_NAME ((SYMBOL_TYPE (new_symbol))) == 0
+      || strcmp (TYPE_NAME ((SYMBOL_TYPE (new_symbol))),
+		 SYMBOL_LINKAGE_NAME (new_symbol)) != 0)
+    fprintf_filtered (stream, " %s", SYMBOL_PRINT_NAME (new_symbol));
+  fprintf_filtered (stream, ";\n");
+}
+
 /* If TYPE is a derived type, then print out derivation information.
    Print only the actual base classes of this type, not the base classes
    of the base classes.  I.E.  for the derivation hierarchy:

gdb/doc/ChangeLog

@@ -1,3 +1,8 @@
+2008-09-27  Tom Tromey  <tromey@redhat.com>
+
+	* gdbint.texinfo (Language Support): Remove text about omitting
+	support for a language.
+
 2008-09-23  Doug Evans  <dje@google.com>
 
 	* gdb.texinfo (info dcache): Update.

gdb/doc/gdbint.texinfo

@@ -2513,23 +2513,6 @@ printed representations of your operators to @code{op_print_tab}.
 Add a call to @code{@var{lang}_parse()} and @code{@var{lang}_error} in
 @code{parse_exp_1} (defined in @file{parse.c}).
 
-@item Use macros to trim code
-
-@cindex trimming language-dependent code
-The user has the option of building @value{GDBN} for some or all of the
-languages.  If the user decides to build @value{GDBN} for the language
-@var{lang}, then every file dependent on @file{language.h} will have the
-macro @code{_LANG_@var{lang}} defined in it.  Use @code{#ifdef}s to
-leave out large routines that the user won't need if he or she is not
-using your language.
-
-Note that you do not need to do this in your YACC parser, since if @value{GDBN}
-is not build for @var{lang}, then @file{@var{lang}-exp.tab.o} (the
-compiled form of your parser) is not linked into @value{GDBN} at all.
-
-See the file @file{configure.in} for how @value{GDBN} is configured
-for different languages.
-
 @item Edit @file{Makefile.in}
 
 Add dependencies in @file{Makefile.in}.  Make sure you update the macro

gdb/f-lang.c

@@ -324,6 +324,7 @@ const struct language_defn f_language_defn =
   f_printstr,			/* function to print string constant */
   f_emit_char,			/* Function to print a single character */
   f_print_type,			/* Print a type using appropriate syntax */
+  default_print_typedef,	/* Print a typedef using appropriate syntax */
   f_val_print,			/* Print a value using appropriate syntax */
   c_value_print,		/* FIXME */
   NULL,				/* Language specific skip_trampoline */

gdb/jv-lang.c

@@ -1110,6 +1110,7 @@ const struct language_defn java_language_defn =
   c_printstr,			/* Function to print string constant */
   java_emit_char,		/* Function to print a single character */
   java_print_type,		/* Print a type using appropriate syntax */
+  default_print_typedef,	/* Print a typedef using appropriate syntax */
   java_val_print,		/* Print a value using appropriate syntax */
   java_value_print,		/* Print a top-level value */
   NULL,				/* Language specific skip_trampoline */

gdb/language.c

@@ -1145,6 +1145,7 @@ const struct language_defn unknown_language_defn =
   unk_lang_printstr,
   unk_lang_emit_char,
   unk_lang_print_type,		/* Print a type using appropriate syntax */
+  default_print_typedef,	/* Print a typedef using appropriate syntax */
   unk_lang_val_print,		/* Print a value using appropriate syntax */
   unk_lang_value_print,		/* Print a top-level value */
   unk_lang_trampoline,		/* Language specific skip_trampoline */
@@ -1181,6 +1182,7 @@ const struct language_defn auto_language_defn =
   unk_lang_printstr,
   unk_lang_emit_char,
   unk_lang_print_type,		/* Print a type using appropriate syntax */
+  default_print_typedef,	/* Print a typedef using appropriate syntax */
   unk_lang_val_print,		/* Print a value using appropriate syntax */
   unk_lang_value_print,		/* Print a top-level value */
   unk_lang_trampoline,		/* Language specific skip_trampoline */
@@ -1216,6 +1218,7 @@ const struct language_defn local_language_defn =
   unk_lang_printstr,
   unk_lang_emit_char,
   unk_lang_print_type,		/* Print a type using appropriate syntax */
+  default_print_typedef,	/* Print a typedef using appropriate syntax */
   unk_lang_val_print,		/* Print a value using appropriate syntax */
   unk_lang_value_print,		/* Print a top-level value */
   unk_lang_trampoline,		/* Language specific skip_trampoline */

gdb/language.h

@@ -31,14 +31,6 @@ struct frame_info;
 struct expression;
 struct ui_file;
 
-/* This used to be included to configure GDB for one or more specific
-   languages.  Now it is left out to configure for all of them.  FIXME.  */
-/* #include "lang_def.h" */
-#define	_LANG_c
-#define	_LANG_m2
-#define  _LANG_fortran
-#define  _LANG_pascal
-
 #define MAX_FORTRAN_DIMS  7	/* Maximum number of F77 array dims */
 
 /* range_mode ==
@@ -192,6 +184,13 @@ struct language_defn
     void (*la_print_type) (struct type *, char *, struct ui_file *, int,
 			   int);
 
+    /* Print a typedef using syntax appropriate for this language.
+       TYPE is the underlying type.  NEW_SYMBOL is the symbol naming
+       the type.  STREAM is the output stream on which to print.  */
+
+    void (*la_print_typedef) (struct type *type, struct symbol *new_symbol,
+			      struct ui_file *stream);
+
     /* Print a value using syntax appropriate for this language. */
 
     int (*la_val_print) (struct type *, const gdb_byte *, int, CORE_ADDR,
@@ -350,6 +349,9 @@ extern enum language set_language (enum language);
 #define LA_PRINT_TYPE(type,varstring,stream,show,level) \
   (current_language->la_print_type(type,varstring,stream,show,level))
 
+#define LA_PRINT_TYPEDEF(type,new_symbol,stream) \
+  (current_language->la_print_typedef(type,new_symbol,stream))
+
 #define LA_VAL_PRINT(type,valaddr,offset,addr,stream,fmt,deref,recurse,pretty) \
   (current_language->la_val_print(type,valaddr,offset,addr,stream,fmt,deref, \
 				  recurse,pretty))
@@ -468,4 +470,8 @@ int language_pass_by_reference (struct type *type);
    independent of this.  */
 int default_pass_by_reference (struct type *type);
 
+/* The default implementation of la_print_typedef.  */
+void default_print_typedef (struct type *type, struct symbol *new_symbol,
+			    struct ui_file *stream);
+
 #endif /* defined (LANGUAGE_H) */

gdb/m2-lang.c

@@ -375,6 +375,7 @@ const struct language_defn m2_language_defn =
   m2_printstr,			/* function to print string constant */
   m2_emit_char,			/* Function to print a single character */
   m2_print_type,		/* Print a type using appropriate syntax */
+  m2_print_typedef,		/* Print a typedef using appropriate syntax */
   m2_val_print,			/* Print a value using appropriate syntax */
   c_value_print,		/* Print a top-level value */
   NULL,				/* Language specific skip_trampoline */

gdb/m2-lang.h

@@ -26,6 +26,9 @@ extern void m2_error (char *);	/* Defined in m2-exp.y */
 extern void m2_print_type (struct type *, char *, struct ui_file *, int,
 			   int);
 
+extern void m2_print_typedef (struct type *, struct symbol *,
+			      struct ui_file *);
+
 extern int m2_is_long_set (struct type *type);
 extern int m2_is_unbounded_array (struct type *type);
 

gdb/m2-typeprint.c

@@ -154,6 +154,26 @@ m2_print_type (struct type *type, char *varstring, struct ui_file *stream,
     }
 }
 
+/* Print a typedef using M2 syntax.  TYPE is the underlying type.
+   NEW_SYMBOL is the symbol naming the type.  STREAM is the stream on
+   which to print.  */
+
+void
+m2_print_typedef (struct type *type, struct symbol *new_symbol,
+		  struct ui_file *stream)
+{
+  CHECK_TYPEDEF (type);
+  fprintf_filtered (stream, "TYPE ");
+  if (!TYPE_NAME (SYMBOL_TYPE (new_symbol))
+      || strcmp (TYPE_NAME ((SYMBOL_TYPE (new_symbol))),
+		 SYMBOL_LINKAGE_NAME (new_symbol)) != 0)
+    fprintf_filtered (stream, "%s = ", SYMBOL_PRINT_NAME (new_symbol));
+  else
+    fprintf_filtered (stream, "<builtin> = ");
+  type_print (type, "", stream, 0);
+  fprintf_filtered (stream, ";\n");
+}
+
 /* m2_type_name - if a, type, has a name then print it.  */
 
 void

gdb/objc-lang.c

@@ -512,6 +512,7 @@ const struct language_defn objc_language_defn = {
   objc_printstr,		/* Function to print string constant */
   objc_emit_char,
   c_print_type,			/* Print a type using appropriate syntax */
+  c_print_typedef,		/* Print a typedef using appropriate syntax */
   c_val_print,			/* Print a value using appropriate syntax */
   c_value_print,		/* Print a top-level value */
   objc_skip_trampoline, 	/* Language specific skip_trampoline */

gdb/p-lang.c

@@ -414,6 +414,7 @@ const struct language_defn pascal_language_defn =
   pascal_printstr,		/* Function to print string constant */
   pascal_emit_char,		/* Print a single char */
   pascal_print_type,		/* Print a type using appropriate syntax */
+  pascal_print_typedef,		/* Print a typedef using appropriate syntax */
   pascal_val_print,		/* Print a value using appropriate syntax */
   pascal_value_print,		/* Print a top-level value */
   NULL,				/* Language specific skip_trampoline */

gdb/p-lang.h

@@ -31,6 +31,9 @@ extern void pascal_error (char *);	/* Defined in p-exp.y */
 /* Defined in p-typeprint.c */
 extern void pascal_print_type (struct type *, char *, struct ui_file *, int, int);
 
+extern void pascal_print_typedef (struct type *, struct symbol *,
+				  struct ui_file *);
+
 extern int pascal_val_print (struct type *, const gdb_byte *, int,
 			     CORE_ADDR, struct ui_file *, int, int,
 			     int, enum val_prettyprint);

gdb/p-typeprint.c

@@ -87,6 +87,21 @@ pascal_print_type (struct type *type, char *varstring, struct ui_file *stream,
 
 }
 
+/* Print a typedef using Pascal syntax.  TYPE is the underlying type.
+   NEW_SYMBOL is the symbol naming the type.  STREAM is the stream on
+   which to print.  */
+
+void
+pascal_print_typedef (struct type *type, struct symbol *new_symbol,
+		      struct ui_file *stream)
+{
+  CHECK_TYPEDEF (type);
+  fprintf_filtered (stream, "type ");
+  fprintf_filtered (stream, "%s = ", SYMBOL_PRINT_NAME (new_symbol));
+  type_print (type, "", stream, 0);
+  fprintf_filtered (stream, ";\n");
+}
+
 /* If TYPE is a derived type, then print out derivation information.
    Print only the actual base classes of this type, not the base classes
    of the base classes.  I.E.  for the derivation hierarchy:

gdb/scm-lang.c

@@ -254,6 +254,7 @@ const struct language_defn scm_language_defn =
   scm_printstr,			/* Function to print string constant */
   NULL,				/* Function to print a single character */
   c_print_type,			/* Print a type using appropriate syntax */
+  default_print_typedef,	/* Print a typedef using appropriate syntax */
   scm_val_print,		/* Print a value using appropriate syntax */
   scm_value_print,		/* Print a top-level value */
   NULL,				/* Language specific skip_trampoline */

gdb/typeprint.c

@@ -47,6 +47,7 @@ static void whatis_command (char *, int);
 
 static void whatis_exp (char *, int);
 
+
 /* Print a description of a type in the format of a 
    typedef for the current language.
    NEW is the new name for a type TYPE. */
@@ -54,41 +55,16 @@ static void whatis_exp (char *, int);
 void
 typedef_print (struct type *type, struct symbol *new, struct ui_file *stream)
 {
-  CHECK_TYPEDEF (type);
+  LA_PRINT_TYPEDEF (type, new, stream);
-  switch (current_language->la_language)
+}
-    {
+
-#ifdef _LANG_c
+/* The default way to print a typedef.  */
-    case language_c:
+
-    case language_cplus:
+void
-      fprintf_filtered (stream, "typedef ");
+default_print_typedef (struct type *type, struct symbol *new_symbol,
-      type_print (type, "", stream, 0);
+		       struct ui_file *stream)
-      if (TYPE_NAME ((SYMBOL_TYPE (new))) == 0
+{
-	  || strcmp (TYPE_NAME ((SYMBOL_TYPE (new))), SYMBOL_LINKAGE_NAME (new)) != 0)
+  error (_("Language not supported."));
-	fprintf_filtered (stream, " %s", SYMBOL_PRINT_NAME (new));
-      break;
-#endif
-#ifdef _LANG_m2
-    case language_m2:
-      fprintf_filtered (stream, "TYPE ");
-      if (!TYPE_NAME (SYMBOL_TYPE (new))
-	  || strcmp (TYPE_NAME ((SYMBOL_TYPE (new))), SYMBOL_LINKAGE_NAME (new)) != 0)
-	fprintf_filtered (stream, "%s = ", SYMBOL_PRINT_NAME (new));
-      else
-	fprintf_filtered (stream, "<builtin> = ");
-      type_print (type, "", stream, 0);
-      break;
-#endif
-#ifdef _LANG_pascal
-    case language_pascal:
-      fprintf_filtered (stream, "type ");
-      fprintf_filtered (stream, "%s = ", SYMBOL_PRINT_NAME (new));
-      type_print (type, "", stream, 0);
-      break;
-#endif
-    default:
-      error (_("Language not supported."));
-    }
-  fprintf_filtered (stream, ";\n");
 }
 
 /* Print a description of a type TYPE in the form of a declaration of a