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c6d9a88c | 1 | /* params.c - Run-time parameters. |
66647d44 JJ |
2 | Copyright (C) 2001, 2003, 2004, 2005, 2007, 2008 |
3 | Free Software Foundation, Inc. | |
c6d9a88c MM |
4 | Written by Mark Mitchell <mark@codesourcery.com>. |
5 | ||
1322177d | 6 | This file is part of GCC. |
c6d9a88c | 7 | |
1322177d LB |
8 | GCC is free software; you can redistribute it and/or modify it under |
9 | the terms of the GNU General Public License as published by the Free | |
9dcd6f09 | 10 | Software Foundation; either version 3, or (at your option) any later |
1322177d | 11 | version. |
c6d9a88c | 12 | |
1322177d LB |
13 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
14 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
15 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
16 | for more details. | |
c6d9a88c MM |
17 | |
18 | You should have received a copy of the GNU General Public License | |
9dcd6f09 NC |
19 | along with GCC; see the file COPYING3. If not see |
20 | <http://www.gnu.org/licenses/>. */ | |
c6d9a88c MM |
21 | |
22 | #include "config.h" | |
23 | #include "system.h" | |
4977bab6 ZW |
24 | #include "coretypes.h" |
25 | #include "tm.h" | |
c6d9a88c MM |
26 | #include "params.h" |
27 | #include "toplev.h" | |
28 | ||
29 | /* An array containing the compiler parameters and their current | |
30 | values. */ | |
31 | ||
32 | param_info *compiler_params; | |
33 | ||
34 | /* The number of entries in the table. */ | |
35 | ||
36 | static size_t num_compiler_params; | |
37 | ||
38 | /* Add the N PARAMS to the current list of compiler parameters. */ | |
39 | ||
6a4d6760 | 40 | void |
3d7aafde | 41 | add_params (const param_info params[], size_t n) |
c6d9a88c MM |
42 | { |
43 | /* Allocate enough space for the new parameters. */ | |
d3bfe4de KG |
44 | compiler_params = XRESIZEVEC (param_info, compiler_params, |
45 | num_compiler_params + n); | |
c6d9a88c MM |
46 | /* Copy them into the table. */ |
47 | memcpy (compiler_params + num_compiler_params, | |
48 | params, | |
49 | n * sizeof (param_info)); | |
50 | /* Keep track of how many parameters we have. */ | |
51 | num_compiler_params += n; | |
52 | } | |
53 | ||
54 | /* Set the VALUE associated with the parameter given by NAME. */ | |
55 | ||
56 | void | |
3d7aafde | 57 | set_param_value (const char *name, int value) |
c6d9a88c MM |
58 | { |
59 | size_t i; | |
60 | ||
61 | /* Make sure nobody tries to set a parameter to an invalid value. */ | |
e16acfcd | 62 | gcc_assert (value != INVALID_PARAM_VAL); |
c6d9a88c MM |
63 | |
64 | /* Scan the parameter table to find a matching entry. */ | |
65 | for (i = 0; i < num_compiler_params; ++i) | |
66 | if (strcmp (compiler_params[i].option, name) == 0) | |
67 | { | |
e06c0feb NS |
68 | if (value < compiler_params[i].min_value) |
69 | error ("minimum value of parameter %qs is %u", | |
70 | compiler_params[i].option, | |
71 | compiler_params[i].min_value); | |
72 | else if (compiler_params[i].max_value > compiler_params[i].min_value | |
73 | && value > compiler_params[i].max_value) | |
74 | error ("maximum value of parameter %qs is %u", | |
75 | compiler_params[i].option, | |
76 | compiler_params[i].max_value); | |
77 | else | |
47eb5b32 ZD |
78 | { |
79 | compiler_params[i].value = value; | |
80 | compiler_params[i].set = true; | |
81 | } | |
c6d9a88c MM |
82 | return; |
83 | } | |
84 | ||
85 | /* If we didn't find this parameter, issue an error message. */ | |
971801ff | 86 | error ("invalid parameter %qs", name); |
c6d9a88c | 87 | } |