Cope with setting trace points on symbols which do not have an associated directory.

1 files changed, 20 insertions, 12 deletions

diff --git a/gdb/tracepoint.c b/gdb/tracepoint.c
index fa5ac4d..20379c1 100644
--- a/gdb/tracepoint.c
+++ b/gdb/tracepoint.c
@@ -333,18 +333,26 @@ set_raw_tracepoint (sal)
     t->source_file = NULL;
   else
     {
-      char *p;
-
-      t->source_file = (char *) xmalloc (strlen (sal.symtab->filename) +
-                                         strlen (sal.symtab->dirname) + 2);
-
-      strcpy (t->source_file, sal.symtab->dirname);
-      p = t->source_file;
-      while (*p)
-        p++;
-      if (*(--p) != '/')            /* Will this work on Windows? */
-        strcat (t->source_file, "/");
-      strcat (t->source_file, sal.symtab->filename);
+      if (sal.symtab->dirname == NULL)
+	{
+	  t->source_file = (char *) xmalloc (strlen (sal.symtab->filename) + 1);
+	  strcpy (t->source_file, sal.symtab->filename);
+	}
+      else
+	{
+	  char *p;
+
+	  t->source_file = (char *) xmalloc (strlen (sal.symtab->filename) +
+					     strlen (sal.symtab->dirname) + 2);
+	  
+	  strcpy (t->source_file, sal.symtab->dirname);
+	  p = t->source_file;
+	  while (*p)
+	    p++;
+	  if (*(--p) != '/')            /* Will this work on Windows? */
+	    strcat (t->source_file, "/");
+	  strcat (t->source_file, sal.symtab->filename);
+	}
     }
 
   t->language = current_language->la_language;