| /* params.c - Run-time parameters. |
| Copyright (C) 2001, 2003, 2004 Free Software Foundation, Inc. |
| Written by Mark Mitchell <mark@codesourcery.com>. |
| |
| This file is part of GCC. |
| |
| GCC is free software; you can redistribute it and/or modify it under |
| the terms of the GNU General Public License as published by the Free |
| Software Foundation; either version 2, or (at your option) any later |
| version. |
| |
| GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
| WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GCC; see the file COPYING. If not, write to the Free |
| Software Foundation, 59 Temple Place - Suite 330, Boston, MA |
| 02111-1307, USA. |
| |
| */ |
| |
| #include "config.h" |
| #include "system.h" |
| #include "coretypes.h" |
| #include "tm.h" |
| #include "params.h" |
| #include "toplev.h" |
| |
| /* An array containing the compiler parameters and their current |
| values. */ |
| |
| param_info *compiler_params; |
| |
| /* The number of entries in the table. */ |
| |
| static size_t num_compiler_params; |
| |
| /* Add the N PARAMS to the current list of compiler parameters. */ |
| |
| void |
| add_params (const param_info params[], size_t n) |
| { |
| /* Allocate enough space for the new parameters. */ |
| compiler_params = xrealloc (compiler_params, |
| (num_compiler_params + n) * sizeof (param_info)); |
| /* Copy them into the table. */ |
| memcpy (compiler_params + num_compiler_params, |
| params, |
| n * sizeof (param_info)); |
| /* Keep track of how many parameters we have. */ |
| num_compiler_params += n; |
| } |
| |
| /* Set the VALUE associated with the parameter given by NAME. */ |
| |
| void |
| set_param_value (const char *name, int value) |
| { |
| size_t i; |
| |
| /* Make sure nobody tries to set a parameter to an invalid value. */ |
| if (value == INVALID_PARAM_VAL) |
| abort (); |
| |
| /* Scan the parameter table to find a matching entry. */ |
| for (i = 0; i < num_compiler_params; ++i) |
| if (strcmp (compiler_params[i].option, name) == 0) |
| { |
| if (value < compiler_params[i].min_value) |
| error ("minimum value of parameter %qs is %u", |
| compiler_params[i].option, |
| compiler_params[i].min_value); |
| else if (compiler_params[i].max_value > compiler_params[i].min_value |
| && value > compiler_params[i].max_value) |
| error ("maximum value of parameter %qs is %u", |
| compiler_params[i].option, |
| compiler_params[i].max_value); |
| else |
| compiler_params[i].value = value; |
| return; |
| } |
| |
| /* If we didn't find this parameter, issue an error message. */ |
| error ("invalid parameter %qs", name); |
| } |