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1 | /* params.c - Run-time parameters. |
2 | Copyright (C) 2001 Free Software Foundation, Inc. | |
3 | Written by Mark Mitchell <mark@codesourcery.com>. | |
4 | ||
1322177d | 5 | This file is part of GCC. |
c6d9a88c | 6 | |
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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. | |
c6d9a88c | 11 | |
1322177d LB |
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. | |
c6d9a88c MM |
16 | |
17 | You should have received a copy of the GNU General Public License | |
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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. | |
c6d9a88c MM |
21 | |
22 | */ | |
23 | ||
24 | #include "config.h" | |
25 | #include "system.h" | |
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 | ||
40 | void | |
41 | add_params (params, n) | |
42 | const param_info params[]; | |
43 | size_t n; | |
44 | { | |
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; | |
56 | } | |
57 | ||
58 | /* Set the VALUE associated with the parameter given by NAME. */ | |
59 | ||
60 | void | |
61 | set_param_value (name, value) | |
62 | const char *name; | |
63 | int value; | |
64 | { | |
65 | size_t i; | |
66 | ||
67 | /* Make sure nobody tries to set a parameter to an invalid value. */ | |
68 | if (value == INVALID_PARAM_VAL) | |
69 | abort (); | |
70 | ||
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) | |
74 | { | |
75 | compiler_params[i].value = value; | |
76 | return; | |
77 | } | |
78 | ||
79 | /* If we didn't find this parameter, issue an error message. */ | |
80 | error ("invalid parameter `%s'", name); | |
81 | } | |
82 | ||
83 | ||
84 |