* printcmd.c (printf_command): Guard against 0-length string.

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diff --git a/gdb/printcmd.c b/gdb/printcmd.c
index 629af99..45baef2 100644 (file)
--- a/gdb/printcmd.c
+++ b/gdb/printcmd.c
@@ -2331,7 +2331,8 @@ printf_command (arg, from_tty)
 
              /* Copy the string contents into a string inside GDB.  */
              str = (char *) alloca (j + 1);
-             read_memory (tem, str, j);
+             if (j != 0)
+               read_memory (tem, str, j);
              str[j] = 0;
 
              printf_filtered (current_substring, str);