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retarget.c 2.9 KB

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  1. /* retarget.c
  2. *
  3. * Copyright (C) 2006-2023 wolfSSL Inc.
  4. *
  5. * This file is part of wolfSSL.
  6. *
  7. * wolfSSL is free software; you can redistribute it and/or modify
  8. * it under the terms of the GNU General Public License as published by
  9. * the Free Software Foundation; either version 2 of the License, or
  10. * (at your option) any later version.
  11. *
  12. * wolfSSL is distributed in the hope that it will be useful,
  13. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15. * GNU General Public License for more details.
  16. *
  17. * You should have received a copy of the GNU General Public License
  18. * along with this program; if not, write to the Free Software
  19. * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
  20. */
  21. #include "hw.h"
  22. #include "user_settings.h"
  23. #include <stdio.h>
  24. void __assert(const char *__expression, const char *__filename, int __line)
  25. {
  26. printf("Assert: %s, File %s (%d)\n", __expression, __filename, __line);
  27. }
  28. unsigned long ksdk_time(unsigned long* timer)
  29. {
  30. (void)timer;
  31. return hw_get_time_sec();
  32. }
  33. unsigned int LowResTimer(void)
  34. {
  35. return hw_get_time_sec();
  36. }
  37. double current_time(int reset)
  38. {
  39. double time;
  40. (void)reset;
  41. time = hw_get_time_sec();
  42. time += (double)hw_get_time_msec() / 1000;
  43. return time;
  44. }
  45. unsigned int custom_rand_generate(void)
  46. {
  47. return hw_rand();
  48. }
  49. int custom_rand_generate_block(unsigned char* output, unsigned int sz)
  50. {
  51. uint32_t i = 0;
  52. while (i < sz)
  53. {
  54. /* If not aligned or there is odd/remainder */
  55. if( (i + sizeof(CUSTOM_RAND_TYPE)) > sz ||
  56. ((uint32_t)&output[i] % sizeof(CUSTOM_RAND_TYPE)) != 0
  57. ) {
  58. /* Single byte at a time */
  59. output[i++] = (unsigned char)custom_rand_generate();
  60. }
  61. else {
  62. /* Use native 8, 16, 32 or 64 copy instruction */
  63. *((CUSTOM_RAND_TYPE*)&output[i]) = custom_rand_generate();
  64. i += sizeof(CUSTOM_RAND_TYPE);
  65. }
  66. }
  67. return 0;
  68. }
  69. // Debug print handler
  70. int __putchar(int c, __printf_tag_ptr ctx)
  71. {
  72. hw_uart_printchar(c);
  73. }
  74. /* C library support function to write buffer (always to UART) */
  75. int __write(int __fildes, const unsigned char *__buf, unsigned __len)
  76. {
  77. (void)__fildes;
  78. for (unsigned i = 0; i < __len; i++) {
  79. hw_uart_printchar((int)__buf[i]);
  80. }
  81. }
  82. extern unsigned char __stack_process_start__[];
  83. unsigned char * __aeabi_read_tp(void)
  84. {
  85. // thread-local storage addressing refers to the thread pointer
  86. // This is returning start address of stack process
  87. return (__stack_process_start__);
  88. }
  89. /* Stubs */
  90. void __heap_lock(void)
  91. {
  92. }
  93. void __heap_unlock(void)
  94. {
  95. }
  96. void __printf_lock(void)
  97. {
  98. }
  99. void __printf_unlock(void)
  100. {
  101. }
  102. void __scanf_lock(void)
  103. {
  104. }
  105. void __scanf_unlock(void)
  106. {
  107. }
  108. void __debug_io_lock(void)
  109. {
  110. }
  111. void __debug_io_unlock(void)
  112. {
  113. }