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/* Subroutines for the gcc driver.
Copyright (C) 2009-2013 Free Software Foundation, Inc.
Contributed by Anatoly Sokolov <aesok@post.ru>
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"
/* Current architecture. */
const avr_arch_t *avr_current_arch = NULL;
/* Current device. */
const avr_mcu_t *avr_current_device = NULL;
/* Initialize avr_current_arch and avr_current_device variables. */
static void
avr_set_current_device (const char *name)
{
if (NULL != avr_current_arch)
return;
for (avr_current_device = avr_mcu_types; avr_current_device->name;
avr_current_device++)
{
if (strcmp (avr_current_device->name, name) == 0)
break;
}
avr_current_arch = &avr_arch_types[avr_current_device->arch];
}
/* Returns command line parameters to pass to as. */
const char*
avr_device_to_as (int argc, const char **argv)
{
if (0 == argc)
return NULL;
avr_set_current_device (argv[0]);
return concat ("-mmcu=", avr_current_arch->arch_name,
avr_current_device->errata_skip ? "" : " -mno-skip-bug",
NULL);
}
/* Returns command line parameters to pass to ld. */
const char*
avr_device_to_ld (int argc, const char **argv)
{
if (0 == argc)
return NULL;
avr_set_current_device (argv[0]);
return concat ("-m ", avr_current_arch->arch_name, NULL);
}
/* Returns command line parameters that describe start of date section. */
const char *
avr_device_to_data_start (int argc, const char **argv)
{
unsigned long data_section_start;
char data_section_start_str[16];
if (0 == argc)
return NULL;
avr_set_current_device (argv[0]);
if (avr_current_device->data_section_start
== avr_current_arch->default_data_section_start)
return NULL;
data_section_start = 0x800000 + avr_current_device->data_section_start;
snprintf (data_section_start_str, sizeof(data_section_start_str) - 1,
"0x%lX", data_section_start);
return concat ("-Tdata ", data_section_start_str, NULL);
}
/* Returns command line parameters that describe the device startfile. */
const char *
avr_device_to_startfiles (int argc, const char **argv)
{
if (0 == argc)
return NULL;
avr_set_current_device (argv[0]);
return concat ("crt", avr_current_device->library_name, ".o%s", NULL);
}
/* Returns command line parameters that describe the device library. */
const char *
avr_device_to_devicelib (int argc, const char **argv)
{
if (0 == argc)
return NULL;
avr_set_current_device (argv[0]);
return concat ("-l", avr_current_device->library_name, NULL);
}
const char*
avr_device_to_sp8 (int argc, const char **argv)
{
if (0 == argc)
return NULL;
avr_set_current_device (argv[0]);
/* Leave "avr2" and "avr25" alone. These two architectures are
the only ones that mix devices with 8-bit SP and 16-bit SP.
-msp8 is set by mmultilib machinery. */
if (avr_current_device->macro == NULL
&& (avr_current_device->arch == ARCH_AVR2
|| avr_current_device->arch == ARCH_AVR25))
return "";
return avr_current_device->short_sp
? "-msp8"
: "%<msp8";
}
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