* 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, 10 insertions, 8 deletions

diff --git a/gdb/ax-gdb.c b/gdb/ax-gdb.c
index 066826e..74824d3 100644
--- a/gdb/ax-gdb.c
+++ b/gdb/ax-gdb.c
@@ -2608,6 +2608,7 @@ agent_eval_command_one (char *exp, int eval, CORE_ADDR pc)
   struct cleanup *old_chain = 0;
   struct expression *expr;
   struct agent_expr *agent;
+  const char *arg;
 
   if (!eval)
     {
@@ -2616,14 +2617,15 @@ agent_eval_command_one (char *exp, int eval, CORE_ADDR pc)
         exp = decode_agent_options (exp);
     }
 
-  if (!eval && strcmp (exp, "$_ret") == 0)
+  arg = exp;
+  if (!eval && strcmp (arg, "$_ret") == 0)
     {
       agent = gen_trace_for_return_address (pc, get_current_arch ());
       old_chain = make_cleanup_free_agent_expr (agent);
     }
   else
     {
-      expr = parse_exp_1 (&exp, pc, block_for_pc (pc), 0);
+      expr = parse_exp_1 (&arg, pc, block_for_pc (pc), 0);
       old_chain = make_cleanup (free_current_contents, &expr);
       if (eval)
 	agent = gen_eval_for_expr (pc, expr);
@@ -2716,8 +2718,8 @@ maint_agent_printf_command (char *exp, int from_tty)
   struct expression *argvec[100];
   struct agent_expr *agent;
   struct frame_info *fi = get_current_frame ();	/* need current scope */
-  char *cmdrest;
-  char *format_start, *format_end;
+  const char *cmdrest;
+  const char *format_start, *format_end;
   struct format_piece *fpieces;
   int nargs;
 
@@ -2733,7 +2735,7 @@ maint_agent_printf_command (char *exp, int from_tty)
 
   cmdrest = exp;
 
-  cmdrest = skip_spaces (cmdrest);
+  cmdrest = skip_spaces_const (cmdrest);
 
   if (*cmdrest++ != '"')
     error (_("Must start with a format string."));
@@ -2749,19 +2751,19 @@ maint_agent_printf_command (char *exp, int from_tty)
   if (*cmdrest++ != '"')
     error (_("Bad format string, non-terminated '\"'."));
   
-  cmdrest = skip_spaces (cmdrest);
+  cmdrest = skip_spaces_const (cmdrest);
 
   if (*cmdrest != ',' && *cmdrest != 0)
     error (_("Invalid argument syntax"));
 
   if (*cmdrest == ',')
     cmdrest++;
-  cmdrest = skip_spaces (cmdrest);
+  cmdrest = skip_spaces_const (cmdrest);
 
   nargs = 0;
   while (*cmdrest != '\0')
     {
-      char *cmd1;
+      const char *cmd1;
 
       cmd1 = cmdrest;
       expr = parse_exp_1 (&cmd1, 0, (struct block *) 0, 1);