* ada-lang.c (ada_read_renaming_var_value): Pass const

	pointer to expression string to parse_exp_1.
	(create_excep_cond_exprs): Likewise.
	* ax-gdb.c (agent_eval_command_one): Likewise.
	(maint_agent_printf_command): Likewise.
	Constify much of the string handling/parsing.
	* breakpoint.c (set_breakpoint_condition): Pass const
	pointer to expression string to parse_exp_1.
	(update_watchpoint): Likewise.
	(parse_cmd_to_aexpr): Constify string handling.
	Pass const pointer to parse_exp_1.
	(init_breakpoint_sal): Pass const pointer to parse_exp_1.
	(find_condition_and_thread): Likewise.
	Make TOK const.
	(watch_command_1): Make "arg" const.
	Constify string handling.
	Copy the expression string instead of changing the input
	string.
	(update_breakpoint_location): Pass const pointer to
	parse_exp_1.
	* eval.c (parse_and_eval_address): Make "exp" const.
	(parse_to_comma_and_eval): Make "expp" const.
	(parse_and_eval): Make "exp" const.
	* expression.h (parse_expression): Make argument const.
	(parse_exp_1): Make first argument const.
	* findcmd.c (parse_find_args): Treat "args" as const.
	* linespec.c (parse_linespec): Pass const pointer to
	linespec_expression_to_pc.
	(linespec_expression_to_pc): Make "exp_ptr" const.
	* parse.c (parse_exp_1): Make "stringptr" const.
	Make a copy of the expression to pass to parse_exp_in_context until
	this whole interface can be constified.
	(parse_expression): Make "string" const.
	* printcmd.c (ui_printf): Treat "arg" as const.
	Handle const strings.
	* tracepoint.c (validate_actionline): Pass const pointer to
	all calls to parse_exp_1.
	(encode_actions_1): Likewise.
	* value.h (parse_to_comma_and_eval): Make argument const.
	(parse_and_eval_address): Likewise.
	(parse_and_eval): Likewise.
	* varobj.c (varobj_create): Pass const pointer to parse_exp_1.
	(varobj_set_value): Likewise.
	* cli/cli-cmds.c (disassemble_command): Treat "arg" as const and
	constify string handling.
	Pass const pointers to parse_and_eval_address and
	parse_to_comman_and_eval.
	* cli/cli-utils.c (skip_to_space): Rename to ...
	(skip_to_space_const): ... this. Handle const strings.
	* cli/cli-utils.h (skip_to_space): Turn into macro which invokes
	skip_to_space_const.
	(skip_to_space_const): Declare.
	* common/format.c (parse_format_string): Make "arg" const.
	Handle const strings.
	* common/format.h (parse_format_string): Make "arg" const.
	* gdbserver/ax.c (ax_printf): Make "format" const.
	* python/python.c (gdbpy_parse_and_eval): Do not make a copy
	of the expression string.

1 files changed, 4 insertions, 5 deletions

diff --git a/gdb/ada-lang.c b/gdb/ada-lang.c
index 75f1c3d24b7..63a85eeff31 100644
--- a/gdb/ada-lang.c
+++ b/gdb/ada-lang.c
@@ -4056,15 +4056,14 @@ static struct value *
 ada_read_renaming_var_value (struct symbol *renaming_sym,
 			     struct block *block)
 {
-  char *sym_name;
+  const char *sym_name;
   struct expression *expr;
   struct value *value;
   struct cleanup *old_chain = NULL;
 
-  sym_name = xstrdup (SYMBOL_LINKAGE_NAME (renaming_sym));
-  old_chain = make_cleanup (xfree, sym_name);
+  sym_name = SYMBOL_LINKAGE_NAME (renaming_sym);
   expr = parse_exp_1 (&sym_name, 0, block, 0);
-  make_cleanup (free_current_contents, &expr);
+  old_chain = make_cleanup (free_current_contents, &expr);
   value = evaluate_expression (expr);
 
   do_cleanups (old_chain);
@@ -11385,7 +11384,7 @@ create_excep_cond_exprs (struct ada_catchpoint *c)
       if (!bl->shlib_disabled)
 	{
 	  volatile struct gdb_exception e;
-	  char *s;
+	  const char *s;
 
 	  s = cond_string;
 	  TRY_CATCH (e, RETURN_MASK_ERROR)