cpu-arm.c 1.3 KB

1234567891011121314151617181920212223242526272829303132333435363738
  1. /* Copyright (c) 2014, Google Inc.
  2. *
  3. * Permission to use, copy, modify, and/or distribute this software for any
  4. * purpose with or without fee is hereby granted, provided that the above
  5. * copyright notice and this permission notice appear in all copies.
  6. *
  7. * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  8. * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  9. * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  10. * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  11. * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  12. * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  13. * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
  14. #include <openssl/cpu.h>
  15. #if (defined(OPENSSL_ARM) || defined(OPENSSL_AARCH64)) && \
  16. !defined(OPENSSL_STATIC_ARMCAP)
  17. #include <openssl/arm_arch.h>
  18. extern uint32_t OPENSSL_armcap_P;
  19. char CRYPTO_is_NEON_capable_at_runtime(void) {
  20. return (OPENSSL_armcap_P & ARMV7_NEON) != 0;
  21. }
  22. int CRYPTO_is_ARMv8_AES_capable(void) {
  23. return (OPENSSL_armcap_P & ARMV8_AES) != 0;
  24. }
  25. int CRYPTO_is_ARMv8_PMULL_capable(void) {
  26. return (OPENSSL_armcap_P & ARMV8_PMULL) != 0;
  27. }
  28. #endif /* (defined(OPENSSL_ARM) || defined(OPENSSL_AARCH64)) &&
  29. !defined(OPENSSL_STATIC_ARMCAP) */