gdb/

Replace the savestring calls by xstrdup calls where possible.
	* breakpoint.c (condition_command, set_raw_breakpoint)
	(create_catchpoint, update_breakpoint_locations): Replace the
	savestring calls by xstrdup calls where possible.
	* buildsym.c (start_subfile, patch_subfile_names, record_debugformat)
	(record_producer): Likewise.
	* coffread.c (coff_start_symtab, complete_symtab): Likewise.
	* corefile.c (set_gnutarget): Likewise.
	* dbxread.c (add_new_header_file): Likewise.
	* demangle.c (set_demangling_command, set_demangling_style): Likewise.
	* event-top.c (push_prompt, pop_prompt, command_line_handler)
	(set_async_prompt): Likewise.
	* infcmd.c (set_inferior_io_terminal, attach_command_post_wait):
	Likewise.
	* language.c (set_language_command, _initialize_language): Likewise.
	* linespec.c (decode_line_2): Likewise.
	* rs6000-nat.c (add_vmap): Likewise.
	* top.c (set_prompt, init_history, init_main): Likewise.
	* tracepoint.c (stringify_collection_list): Likewise.
	* varobj.c (varobj_create): Remove variable expr_len.  Replace the
	savestring calls by xstrdup calls where possible.
	(value_of_root, c_name_of_variable, c_describe_child): Replace the
	savestring calls by xstrdup calls where possible.
	* xcoffread.c (complete_symtab): Likewise.
	* cli/cli-script.c (build_command_line, define_command): Likewise.
	* cli/cli-setshow.c (do_setshow_command): Likewise.

gdb/rs6000-nat.c

@@ -736,8 +736,8 @@ add_vmap (LdInfo *ldi)
 
   filename = LDI_FILENAME (ldi, arch64);
   mem = filename + strlen (filename) + 1;
-  mem = savestring (mem, strlen (mem));
-  objname = savestring (filename, strlen (filename));
+  mem = xstrdup (mem);
+  objname = xstrdup (filename);
 
   fd = LDI_FD (ldi, arch64);
   if (fd < 0)