stm32f4-nucleo-test/libopencm3/tests/shared/trace_stdio.c
Arti Zirk 2de3a91b0a git subrepo clone https://github.com/libopencm3/libopencm3.git
subrepo:
  subdir:   "libopencm3"
  merged:   "88e91c9a7cce"
upstream:
  origin:   "https://github.com/libopencm3/libopencm3.git"
  branch:   "master"
  commit:   "88e91c9a7cce"
git-subrepo:
  version:  "0.4.3"
  origin:   "???"
  commit:   "???"
2023-01-21 18:31:08 +02:00

35 lines
582 B
C

/*
* support for stdio output to a trace port
* Karl Palsson, 2014 <karlp@remake.is>
*/
#include <errno.h>
#include <stdio.h>
#include <unistd.h>
#include "trace.h"
#ifndef STIMULUS_STDIO
#define STIMULUS_STDIO 0
#endif
int _write(int file, char *ptr, int len);
int _write(int file, char *ptr, int len)
{
int i;
if (file == STDOUT_FILENO || file == STDERR_FILENO) {
for (i = 0; i < len; i++) {
if (ptr[i] == '\n') {
trace_send_blocking8(STIMULUS_STDIO, '\r');
}
trace_send_blocking8(STIMULUS_STDIO, ptr[i]);
}
return i;
}
errno = EIO;
return -1;
}