* 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, 18 insertions, 6 deletions

diff --git a/gdb/tracepoint.c b/gdb/tracepoint.c
index 9eff137..7f27bc0 100644
--- a/gdb/tracepoint.c
+++ b/gdb/tracepoint.c
@@ -754,9 +754,12 @@ validate_actionline (char **line, struct breakpoint *b)
 	  tmp_p = p;
 	  for (loc = t->base.loc; loc; loc = loc->next)
 	    {
-	      p = tmp_p;
-	      exp = parse_exp_1 (&p, loc->address,
+	      const char *q;
+
+	      q = tmp_p;
+	      exp = parse_exp_1 (&q, loc->address,
 				 block_for_pc (loc->address), 1);
+	      p = (char *) q;
 	      old_chain = make_cleanup (free_current_contents, &exp);
 
 	      if (exp->elts[0].opcode == OP_VAR_VALUE)
@@ -806,10 +809,13 @@ validate_actionline (char **line, struct breakpoint *b)
 	  tmp_p = p;
 	  for (loc = t->base.loc; loc; loc = loc->next)
 	    {
-	      p = tmp_p;
+	      const char *q;
+
+	      q = tmp_p;
 	      /* Only expressions are allowed for this action.  */
-	      exp = parse_exp_1 (&p, loc->address,
+	      exp = parse_exp_1 (&q, loc->address,
 				 block_for_pc (loc->address), 1);
+	      p = (char *) q;
 	      old_chain = make_cleanup (free_current_contents, &exp);
 
 	      /* We have something to evaluate, make sure that the expr to
@@ -1470,9 +1476,12 @@ encode_actions_1 (struct command_line *action,
 		  unsigned long addr;
 		  struct cleanup *old_chain = NULL;
 		  struct cleanup *old_chain1 = NULL;
+		  const char *q;
 
-		  exp = parse_exp_1 (&action_exp, tloc->address,
+		  q = action_exp;
+		  exp = parse_exp_1 (&q, tloc->address,
 				     block_for_pc (tloc->address), 1);
+		  action_exp = (char *) q;
 		  old_chain = make_cleanup (free_current_contents, &exp);
 
 		  switch (exp->elts[0].opcode)
@@ -1561,9 +1570,12 @@ encode_actions_1 (struct command_line *action,
 		{
 		  struct cleanup *old_chain = NULL;
 		  struct cleanup *old_chain1 = NULL;
+		  const char *q;
 
-		  exp = parse_exp_1 (&action_exp, tloc->address,
+		  q = action_exp;
+		  exp = parse_exp_1 (&q, tloc->address,
 				     block_for_pc (tloc->address), 1);
+		  action_exp = (char *) q;
 		  old_chain = make_cleanup (free_current_contents, &exp);
 
 		  aexpr = gen_eval_for_expr (tloc->address, exp);