1 files changed, 141 insertions, 0 deletions
diff --git a/gdb/cp-support.c b/gdb/cp-support.c
new file mode 100644
index 0000000..46363a8
--- /dev/null
+++ b/gdb/cp-support.c
@@ -0,0 +1,141 @@
+/* Helper routines for C++ support in GDB.
+   Copyright 2002 Free Software Foundation, Inc.
+
+   Contributed by MontaVista Software.
+
+   This file is part of GDB.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#include "defs.h"
+#include "cp-support.h"
+#include "gdb_string.h"
+#include "demangle.h"
+
+/* Find the last component of the demangled C++ 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 colon before the
+   last component, or NULL if the name had only one component.  */
+
+static const char *
+find_last_component (const char *name)
+{
+  const char *p;
+  int depth;
+
+  /* Functions can have local classes, so we need to find the
+     beginning of the last argument list, not the end of the first
+     one.  */
+  p = name + strlen (name) - 1;
+  while (p > name && *p != ')')
+    p--;
+
+  if (p == name)
+    return NULL;
+
+  /* P now points at the `)' at the end of the argument list.  Walk
+     back to the beginning.  */
+  p--;
+  depth = 1;
+  while (p > name && depth > 0)
+    {
+      if (*p == '<' || *p == '(')
+	depth--;
+      else if (*p == '>' || *p == ')')
+	depth++;
+      p--;
+    }
+
+  if (p == name)
+    return NULL;
+
+  while (p > name && *p != ':')
+    p--;
+
+  if (p == name || p == name + 1 || p[-1] != ':')
+    return NULL;
+
+  return p - 1;
+}
+
+/* Return the name of the class containing method PHYSNAME.  */
+
+char *
+class_name_from_physname (const char *physname)
+{
+  char *ret = NULL;
+  const char *end;
+  int depth = 0;
+  char *demangled_name = cplus_demangle (physname, DMGL_ANSI);
+
+  if (demangled_name == NULL)
+    return NULL;
+
+  end = 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;
+}
+
+/* Return the name of the method whose linkage name is PHYSNAME.  */
+
+char *
+method_name_from_physname (const char *physname)
+{
+  char *ret = NULL;
+  const char *end;
+  int depth = 0;
+  char *demangled_name = cplus_demangle (physname, DMGL_ANSI);
+
+  if (demangled_name == NULL)
+    return NULL;
+
+  end = find_last_component (demangled_name);
+  if (end != NULL)
+    {
+      char *args;
+      int len;
+
+      /* Skip "::".  */
+      end = end + 2;
+
+      /* Find the argument list, if any.  */
+      args = strchr (end, '(');
+      if (args == NULL)
+	len = strlen (end + 2);
+      else
+	{
+	  args --;
+	  while (*args == ' ')
+	    args --;
+	  len = args - end + 1;
+	}
+      ret = xmalloc (len + 1);
+      memcpy (ret, end, len);
+      ret[len] = 0;
+    }
+
+  xfree (demangled_name);
+  return ret;
+}