wolfssl-w32/IDE/ROWLEY-CROSSWORKS-ARM/retarget.c

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/* retarget.c
*
* Copyright (C) 2006-2023 wolfSSL Inc.
*
* This file is part of wolfSSL.
*
* wolfSSL 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 2 of the License, or
* (at your option) any later version.
*
* wolfSSL 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
*/
#include "hw.h"
#include "user_settings.h"
#include <stdio.h>
void __assert(const char *__expression, const char *__filename, int __line)
{
printf("Assert: %s, File %s (%d)\n", __expression, __filename, __line);
}
unsigned long ksdk_time(unsigned long* timer)
{
(void)timer;
return hw_get_time_sec();
}
unsigned int LowResTimer(void)
{
return hw_get_time_sec();
}
double current_time(int reset)
{
double time;
(void)reset;
time = hw_get_time_sec();
time += (double)hw_get_time_msec() / 1000;
return time;
}
unsigned int custom_rand_generate(void)
{
return hw_rand();
}
int custom_rand_generate_block(unsigned char* output, unsigned int sz)
{
uint32_t i = 0;
while (i < sz)
{
/* If not aligned or there is odd/remainder */
if( (i + sizeof(CUSTOM_RAND_TYPE)) > sz ||
((uint32_t)&output[i] % sizeof(CUSTOM_RAND_TYPE)) != 0
) {
/* Single byte at a time */
output[i++] = (unsigned char)custom_rand_generate();
}
else {
/* Use native 8, 16, 32 or 64 copy instruction */
*((CUSTOM_RAND_TYPE*)&output[i]) = custom_rand_generate();
i += sizeof(CUSTOM_RAND_TYPE);
}
}
return 0;
}
// Debug print handler
int __putchar(int c, __printf_tag_ptr ctx)
{
hw_uart_printchar(c);
}
/* C library support function to write buffer (always to UART) */
int __write(int __fildes, const unsigned char *__buf, unsigned __len)
{
(void)__fildes;
for (unsigned i = 0; i < __len; i++) {
hw_uart_printchar((int)__buf[i]);
}
}
extern unsigned char __stack_process_start__[];
unsigned char * __aeabi_read_tp(void)
{
// thread-local storage addressing refers to the thread pointer
// This is returning start address of stack process
return (__stack_process_start__);
}
/* Stubs */
void __heap_lock(void)
{
}
void __heap_unlock(void)
{
}
void __printf_lock(void)
{
}
void __printf_unlock(void)
{
}
void __scanf_lock(void)
{
}
void __scanf_unlock(void)
{
}
void __debug_io_lock(void)
{
}
void __debug_io_unlock(void)
{
}