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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.2.2/] [gcc/] [params.c] - Rev 318
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/* params.c - Run-time parameters. Copyright (C) 2001, 2003, 2004, 2005, 2007 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 3, 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 COPYING3. If not see <http://www.gnu.org/licenses/>. */ #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. */ gcc_assert (value != INVALID_PARAM_VAL); /* 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); }
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