| 1 |
38 |
julius |
/* params.c - Run-time parameters.
|
| 2 |
|
|
Copyright (C) 2001, 2003, 2004, 2005, 2007 Free Software Foundation, Inc.
|
| 3 |
|
|
Written by Mark Mitchell <mark@codesourcery.com>.
|
| 4 |
|
|
|
| 5 |
|
|
This file is part of GCC.
|
| 6 |
|
|
|
| 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 3, or (at your option) any later
|
| 10 |
|
|
version.
|
| 11 |
|
|
|
| 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.
|
| 16 |
|
|
|
| 17 |
|
|
You should have received a copy of the GNU General Public License
|
| 18 |
|
|
along with GCC; see the file COPYING3. If not see
|
| 19 |
|
|
<http://www.gnu.org/licenses/>. */
|
| 20 |
|
|
|
| 21 |
|
|
#include "config.h"
|
| 22 |
|
|
#include "system.h"
|
| 23 |
|
|
#include "coretypes.h"
|
| 24 |
|
|
#include "tm.h"
|
| 25 |
|
|
#include "params.h"
|
| 26 |
|
|
#include "toplev.h"
|
| 27 |
|
|
|
| 28 |
|
|
/* An array containing the compiler parameters and their current
|
| 29 |
|
|
values. */
|
| 30 |
|
|
|
| 31 |
|
|
param_info *compiler_params;
|
| 32 |
|
|
|
| 33 |
|
|
/* The number of entries in the table. */
|
| 34 |
|
|
|
| 35 |
|
|
static size_t num_compiler_params;
|
| 36 |
|
|
|
| 37 |
|
|
/* Add the N PARAMS to the current list of compiler parameters. */
|
| 38 |
|
|
|
| 39 |
|
|
void
|
| 40 |
|
|
add_params (const param_info params[], size_t n)
|
| 41 |
|
|
{
|
| 42 |
|
|
/* Allocate enough space for the new parameters. */
|
| 43 |
|
|
compiler_params = xrealloc (compiler_params,
|
| 44 |
|
|
(num_compiler_params + n) * sizeof (param_info));
|
| 45 |
|
|
/* Copy them into the table. */
|
| 46 |
|
|
memcpy (compiler_params + num_compiler_params,
|
| 47 |
|
|
params,
|
| 48 |
|
|
n * sizeof (param_info));
|
| 49 |
|
|
/* Keep track of how many parameters we have. */
|
| 50 |
|
|
num_compiler_params += n;
|
| 51 |
|
|
}
|
| 52 |
|
|
|
| 53 |
|
|
/* Set the VALUE associated with the parameter given by NAME. */
|
| 54 |
|
|
|
| 55 |
|
|
void
|
| 56 |
|
|
set_param_value (const char *name, int value)
|
| 57 |
|
|
{
|
| 58 |
|
|
size_t i;
|
| 59 |
|
|
|
| 60 |
|
|
/* Make sure nobody tries to set a parameter to an invalid value. */
|
| 61 |
|
|
gcc_assert (value != INVALID_PARAM_VAL);
|
| 62 |
|
|
|
| 63 |
|
|
/* Scan the parameter table to find a matching entry. */
|
| 64 |
|
|
for (i = 0; i < num_compiler_params; ++i)
|
| 65 |
|
|
if (strcmp (compiler_params[i].option, name) == 0)
|
| 66 |
|
|
{
|
| 67 |
|
|
if (value < compiler_params[i].min_value)
|
| 68 |
|
|
error ("minimum value of parameter %qs is %u",
|
| 69 |
|
|
compiler_params[i].option,
|
| 70 |
|
|
compiler_params[i].min_value);
|
| 71 |
|
|
else if (compiler_params[i].max_value > compiler_params[i].min_value
|
| 72 |
|
|
&& value > compiler_params[i].max_value)
|
| 73 |
|
|
error ("maximum value of parameter %qs is %u",
|
| 74 |
|
|
compiler_params[i].option,
|
| 75 |
|
|
compiler_params[i].max_value);
|
| 76 |
|
|
else
|
| 77 |
|
|
compiler_params[i].value = value;
|
| 78 |
|
|
return;
|
| 79 |
|
|
}
|
| 80 |
|
|
|
| 81 |
|
|
/* If we didn't find this parameter, issue an error message. */
|
| 82 |
|
|
error ("invalid parameter %qs", name);
|
| 83 |
|
|
}
|
