2004-07-06 Jeff Johnston <jjohnstn@redhat.com>

* language.h (struct_language_defn): Add new function pointer:
        la_class_name_from_physname.  Also add new prototype for
        language_class_name_from_physname.
        * language.c (language_class_name_from_physname): New function.
        (unk_lang_class_name): Ditto.
        (unknown_language_defn, auto_language_defn): Change
        to add unk_lang_class_name function pointer for
        la_class_name_from_physname.
        (local_language_defn): Ditto.
        * dwarf2read.c (guess_structure_name): Change to call
        language_class_name_from_physname.
        (determine_class_name): Ditto.
        * cp-support.c (class_name_from_physname): Renamed.
        (cp_class_name_from_physname): New name of function.
        * cp-support.h: Ditto.
        * c-lang.c (c_language_defn): Change to add NULL
        for class_name_from_physname function pointer.
        (cplus_language_defn): Change to add cp_class_name_from_physname.
        * jv-lang.c (java_class_name_physname): New function.
        (java_find_last_component): New static routine.
        (java_language_defn): Add java_class_name_from_physname pointer.
        * ada-lang.c (ada_language_defn): Change to add NULL
        for class_name_from_physname function pointer.
        * f-lang.c (f_language_defn): Ditto.
        * m2-lang.c (m2_language_defn): Ditto.
        * objc-lang.c (objc_language_defn): Ditto.
        * p-lang.c (pascal_language_defn): Ditto.
        * scm-lang.c (scm_language_defn): Ditto.

gdb/jv-lang.c

@@ -62,6 +62,8 @@ static struct value *java_value_string (char *ptr, int len);
 
 static void java_emit_char (int c, struct ui_file * stream, int quoter);
 
+static char *java_class_name_from_physname (const char *physname);
+
 /* This objfile contains symtabs that have been dynamically created
    to record dynamically loaded Java classes and dynamically
    compiled java methods. */
@@ -975,6 +977,59 @@ static char *java_demangle (const char *mangled, int options)
   return cplus_demangle (mangled, options | DMGL_JAVA);
 }
 
+/* Find the member function name of the demangled name NAME.  NAME
+   must be a method name including arguments, in order to correctly
+   locate the last component.
+
+   This function return a pointer to the first dot before the
+   member function name, or NULL if the name was not of the
+   expected form.  */
+
+static const char *
+java_find_last_component (const char *name)
+{
+  const char *p;
+
+  /* Find argument list.  */
+  p = strchr (name, '(');
+
+  if (p == NULL)
+    return NULL;
+
+  /* Back up and find first dot prior to argument list.  */
+  while (p > name && *p != '.')
+    p--;
+
+  if (p == name)
+    return NULL;
+
+  return p;
+}
+
+/* Return the name of the class containing method PHYSNAME.  */
+
+static char *
+java_class_name_from_physname (const char *physname) 
+{
+  char *ret = NULL;
+  const char *end;
+  int depth = 0;
+  char *demangled_name = java_demangle (physname, DMGL_PARAMS | DMGL_ANSI);
+
+  if (demangled_name == NULL)
+    return NULL;
+
+  end = java_find_last_component (demangled_name);
+  if (end != NULL)
+    {
+      ret = xmalloc (end - demangled_name + 1);
+      memcpy (ret, demangled_name, end - demangled_name);
+      ret[end - demangled_name] = '\0';
+    }
+
+  xfree (demangled_name);
+  return ret;
+}
 
 /* Table mapping opcodes into strings for printing operators
    and precedences of the operators.  */
@@ -1049,6 +1104,7 @@ const struct language_defn java_language_defn =
   basic_lookup_symbol_nonlocal,	/* lookup_symbol_nonlocal */
   basic_lookup_transparent_type,/* lookup_transparent_type */
   java_demangle,		/* Language specific symbol demangler */
+  java_class_name_from_physname,/* Language specific class name */
   {"", "", "", ""},		/* Binary format info */
   {"0%lo", "0", "o", ""},	/* Octal format info */
   {"%ld", "", "d", ""},		/* Decimal format info */