/**
* \file
*
* \brief Syscalls for SAM0 (GCC).
*
* Copyright (c) 2012-2018 Microchip Technology Inc. and its subsidiaries.
*
* \asf_license_start
*
* \page License
*
* Subject to your compliance with these terms, you may use Microchip
* software and any derivatives exclusively with Microchip products.
* It is your responsibility to comply with third party license terms applicable
* to your use of third party software (including open source software) that
* may accompany Microchip software.
*
* THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
* WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
* INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
* AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
* LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
* LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
* SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
* POSSIBILITY OR THE DAMAGES ARE FORESEEABLE. TO THE FULLEST EXTENT
* ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
* RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
* THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
*
* \asf_license_stop
*
*/
/*
* Support and FAQ: visit Microchip Support
*/
#include
#include
#include
#include
#ifdef __cplusplus
extern "C" {
#endif
#undef errno
extern int errno;
extern int _end;
extern caddr_t _sbrk(int incr);
extern int link(char *old, char *new);
extern int _close(int file);
extern int _fstat(int file, struct stat *st);
extern int _isatty(int file);
extern int _lseek(int file, int ptr, int dir);
extern void _exit(int status);
extern void _kill(int pid, int sig);
extern int _getpid(void);
extern caddr_t _sbrk(int incr)
{
static unsigned char *heap = NULL;
unsigned char *prev_heap;
if (heap == NULL) {
heap = (unsigned char *)&_end;
}
prev_heap = heap;
heap += incr;
return (caddr_t) prev_heap;
}
extern int link(char *old, char *new)
{
return -1;
}
extern int _close(int file)
{
return -1;
}
extern int _fstat(int file, struct stat *st)
{
st->st_mode = S_IFCHR;
return 0;
}
extern int _isatty(int file)
{
return 1;
}
extern int _lseek(int file, int ptr, int dir)
{
return 0;
}
extern void _exit(int status)
{
asm("BKPT #0");
for (;;);
}
extern void _kill(int pid, int sig)
{
return;
}
extern int _getpid(void)
{
return -1;
}
#ifdef __cplusplus
}
#endif