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// SPDX-License-Identifier: BSD-2-Clause
/*
* Copyright (c) 2014, STMicroelectronics International N.V.
*/
#include <stdio.h>
#include <stdarg.h>
#include <string.h>
#include <string_ext.h>
#include <trace.h>
#include <util.h>
#include <utee_syscalls.h>
#if TRACE_LEVEL > 0
void trace_ext_puts(const char *str)
{
utee_log(str, strlen(str));
}
int trace_ext_get_thread_id(void)
{
return -1;
}
/*
* printf and puts - stdio printf support
*
* 'printf()' and 'puts()' traces have the 'info' trace level.
*/
int printf(const char *fmt, ...)
{
char to_format[MAX_PRINT_SIZE];
va_list ap;
int s;
if (trace_get_level() < TRACE_PRINTF_LEVEL)
return 0;
va_start(ap, fmt);
s = vsnprintf(to_format, sizeof(to_format), fmt, ap);
va_end(ap);
if (s < 0)
return s;
trace_ext_puts(to_format);
return s;
}
int puts(const char *str)
{
if (trace_get_level() >= TRACE_PRINTF_LEVEL) {
trace_ext_puts(str);
trace_ext_puts("\n");
}
return 1;
}
int putchar(int c)
{
char str[2] = { (char)c, '\0' };
if (trace_get_level() >= TRACE_PRINTF_LEVEL)
trace_ext_puts(str);
/*
* From the putchar() man page:
* "fputc(), putc() and putchar() return the character written as an
* unsigned char cast to an int or EOF on error."
*/
return (int)(unsigned char)c;
}
#else
int printf(const char *fmt __unused, ...)
{
return 0;
}
int puts(const char *str __unused)
{
return 0;
}
int putchar(int c)
{
return (int)(unsigned char)c;
}
#endif
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