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/*
* Copyright (c) 2022 Arm Limited. All rights reserved.
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#if !defined(USE_SEMIHOSTING)
#include "uart_stdout.h"
#include <stdio.h>
#include <string.h>
#include <time.h>
#if defined(__ARMCC_VERSION) && (__ARMCC_VERSION >= 6100100)
/* Arm compiler re-targeting */
#include <rt_misc.h>
#include <rt_sys.h>
/* Standard IO device handles. */
#define STDIN 0x8001
#define STDOUT 0x8002
#define STDERR 0x8003
#define RETARGET(fun) _sys##fun
#if __ARMCLIB_VERSION >= 6190004
#define TMPNAM_FUNCTION RETARGET(_tmpnam2)
#else
#define TMPNAM_FUNCTION RETARGET(_tmpnam)
#endif
#else
/* GNU compiler re-targeting */
/*
* This type is used by the _ I/O functions to denote an open
* file.
*/
typedef int FILEHANDLE;
/*
* Open a file. May return -1 if the file failed to open.
*/
extern FILEHANDLE _open(const char* /*name*/, int /*openmode*/);
/* Standard IO device handles. */
#define STDIN 0x00
#define STDOUT 0x01
#define STDERR 0x02
#define RETARGET(fun) fun
#define TMPNAM_FUNCTION RETARGET(_tmpnam)
#endif
/* Standard IO device name defines. */
const char __stdin_name[] __attribute__((aligned(4))) = "STDIN";
const char __stdout_name[] __attribute__((aligned(4))) = "STDOUT";
const char __stderr_name[] __attribute__((aligned(4))) = "STDERR";
__attribute__((noreturn)) static void UartEndSimulation(int code)
{
UartPutc((char)0x4); // End of simulation
UartPutc((char)code); // Exit code
while (1)
;
}
void _ttywrch(int ch)
{
(void)fputc(ch, stdout);
}
FILEHANDLE RETARGET(_open)(const char* name, int openmode)
{
(void)(openmode);
if (strcmp(name, __stdin_name) == 0) {
return (STDIN);
}
if (strcmp(name, __stdout_name) == 0) {
return (STDOUT);
}
if (strcmp(name, __stderr_name) == 0) {
return (STDERR);
}
return -1;
}
int RETARGET(_write)(FILEHANDLE fh, const unsigned char* buf, unsigned int len, int mode)
{
(void)(mode);
switch (fh) {
case STDOUT:
case STDERR: {
int c;
while (len-- > 0) {
c = fputc(*buf++, stdout);
if (c == EOF) {
return EOF;
}
}
return 0;
}
default:
return EOF;
}
}
int RETARGET(_read)(FILEHANDLE fh, unsigned char* buf, unsigned int len, int mode)
{
(void)(mode);
switch (fh) {
case STDIN: {
int c;
while (len-- > 0) {
c = fgetc(stdin);
if (c == EOF) {
return EOF;
}
*buf++ = (unsigned char)c;
}
return 0;
}
default:
return EOF;
}
}
int RETARGET(_istty)(FILEHANDLE fh)
{
switch (fh) {
case STDIN:
case STDOUT:
case STDERR:
return 1;
default:
return 0;
}
}
int RETARGET(_close)(FILEHANDLE fh)
{
if (RETARGET(_istty(fh))) {
return 0;
}
return -1;
}
int RETARGET(_seek)(FILEHANDLE fh, long pos)
{
(void)(fh);
(void)(pos);
return -1;
}
int RETARGET(_ensure)(FILEHANDLE fh)
{
(void)(fh);
return -1;
}
long RETARGET(_flen)(FILEHANDLE fh)
{
if (RETARGET(_istty)(fh)) {
return 0;
}
return -1;
}
int TMPNAM_FUNCTION(char* name, int sig, unsigned int maxlen)
{
(void)(name);
(void)(sig);
(void)(maxlen);
return 1;
}
char* RETARGET(_command_string)(char* cmd, int len)
{
(void)(len);
return cmd;
}
void RETARGET(_exit)(int return_code)
{
UartEndSimulation(return_code);
while (1)
;
}
int system(const char* cmd)
{
(void)(cmd);
return 0;
}
time_t time(time_t* timer)
{
time_t current;
current = 0; // To Do !! No RTC implemented
if (timer != NULL) {
*timer = current;
}
return current;
}
void _clock_init(void) {}
clock_t clock(void)
{
return (clock_t)-1;
}
int remove(const char* arg)
{
(void)(arg);
return 0;
}
int rename(const char* oldn, const char* newn)
{
(void)(oldn);
(void)(newn);
return 0;
}
int fputc(int ch, FILE* f)
{
(void)(f);
return UartPutc(ch);
}
int fgetc(FILE* f)
{
(void)(f);
return UartPutc(UartGetc());
}
#ifndef ferror
/* arm-none-eabi-gcc with newlib uses a define for ferror */
int ferror(FILE* f)
{
(void)(f);
return EOF;
}
#endif /* #ifndef ferror */
#endif /* !defined(USE_SEMIHOSTING) */
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