Daily bump.
[official-gcc.git] / gcc / params.c
blobb32f9b625d04df3ace0b558b17d54e75f0e04f89
1 /* params.c - Run-time parameters.
2 Copyright (C) 2001 Free Software Foundation, Inc.
3 Written by Mark Mitchell <mark@codesourcery.com>.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
10 version.
12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 for more details.
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING. If not, write to the Free
19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
20 02111-1307, USA.
24 #include "config.h"
25 #include "system.h"
26 #include "params.h"
27 #include "toplev.h"
29 /* An array containing the compiler parameters and their current
30 values. */
32 param_info *compiler_params;
34 /* The number of entries in the table. */
36 static size_t num_compiler_params;
38 /* Add the N PARAMS to the current list of compiler parameters. */
40 void
41 add_params (params, n)
42 const param_info params[];
43 size_t n;
45 /* Allocate enough space for the new parameters. */
46 compiler_params =
47 ((param_info *)
48 xrealloc (compiler_params,
49 (num_compiler_params + n) * sizeof (param_info)));
50 /* Copy them into the table. */
51 memcpy (compiler_params + num_compiler_params,
52 params,
53 n * sizeof (param_info));
54 /* Keep track of how many parameters we have. */
55 num_compiler_params += n;
58 /* Set the VALUE associated with the parameter given by NAME. */
60 void
61 set_param_value (name, value)
62 const char *name;
63 int value;
65 size_t i;
67 /* Make sure nobody tries to set a parameter to an invalid value. */
68 if (value == INVALID_PARAM_VAL)
69 abort ();
71 /* Scan the parameter table to find a matching entry. */
72 for (i = 0; i < num_compiler_params; ++i)
73 if (strcmp (compiler_params[i].option, name) == 0)
75 compiler_params[i].value = value;
76 return;
79 /* If we didn't find this parameter, issue an error message. */
80 error ("invalid parameter `%s'", name);