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boringssl/crypto/cpu-arm.c

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Use a weak pointer for getauxval. The Android SDK version against which Chromium builds is too old to include sys/auxv.h. This change switches the ARM code to use a weak pointer for getauxval and to hard code the aux value numbers. It also switches the license on cpu-arm.c because there's no OpenSSL left in there now. Change-Id: I440cb9d533a06d8b245b189d8e5148fa33e29412 Reviewed-on: https://boringssl-review.googlesource.com/2880 Reviewed-by: David Benjamin <davidben@chromium.org> Reviewed-by: Adam Langley <agl@google.com>
2015-01-15 00:37:38 +00:00
/* Copyright (c) 2014, Google Inc.
Inital import. Initial fork from f2d678e6e89b6508147086610e985d4e8416e867 (1.0.2 beta). (This change contains substantial changes from the original and effectively starts a new history.)
2014-06-20 20:00:00 +01:00
*
Use a weak pointer for getauxval. The Android SDK version against which Chromium builds is too old to include sys/auxv.h. This change switches the ARM code to use a weak pointer for getauxval and to hard code the aux value numbers. It also switches the license on cpu-arm.c because there's no OpenSSL left in there now. Change-Id: I440cb9d533a06d8b245b189d8e5148fa33e29412 Reviewed-on: https://boringssl-review.googlesource.com/2880 Reviewed-by: David Benjamin <davidben@chromium.org> Reviewed-by: Adam Langley <agl@google.com>
2015-01-15 00:37:38 +00:00
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
Inital import. Initial fork from f2d678e6e89b6508147086610e985d4e8416e867 (1.0.2 beta). (This change contains substantial changes from the original and effectively starts a new history.)
2014-06-20 20:00:00 +01:00
*
Use a weak pointer for getauxval. The Android SDK version against which Chromium builds is too old to include sys/auxv.h. This change switches the ARM code to use a weak pointer for getauxval and to hard code the aux value numbers. It also switches the license on cpu-arm.c because there's no OpenSSL left in there now. Change-Id: I440cb9d533a06d8b245b189d8e5148fa33e29412 Reviewed-on: https://boringssl-review.googlesource.com/2880 Reviewed-by: David Benjamin <davidben@chromium.org> Reviewed-by: Adam Langley <agl@google.com>
2015-01-15 00:37:38 +00:00
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
Inital import. Initial fork from f2d678e6e89b6508147086610e985d4e8416e867 (1.0.2 beta). (This change contains substantial changes from the original and effectively starts a new history.)
2014-06-20 20:00:00 +01:00
#include <openssl/cpu.h>
Allow ARM capabilities to be set at compile time. Some ARM environments don't support |getauxval| or signals and need to configure the capabilities of the chip at compile time. This change adds defines that allow them to do so. Change-Id: I4e6987f69dd13444029bc7ac7ed4dbf8fb1faa76 Reviewed-on: https://boringssl-review.googlesource.com/6280 Reviewed-by: Adam Langley <agl@google.com>
2015-10-16 23:46:46 +01:00
#if (defined(OPENSSL_ARM) || defined(OPENSSL_AARCH64)) && \
!defined(OPENSSL_STATIC_ARMCAP)
Inital import. Initial fork from f2d678e6e89b6508147086610e985d4e8416e867 (1.0.2 beta). (This change contains substantial changes from the original and effectively starts a new history.)
2014-06-20 20:00:00 +01:00
Move arm_arch.h and fix up lots of include paths. arm_arch.h is included from ARM asm files, but lives in crypto/, not openssl/include/. Since the asm files are often built from a different location than their position in the source tree, relative include paths are unlikely to work so, rather than having crypto/ be a de-facto, second global include path, this change moves arm_arch.h to include/openssl/. It also removes entries from many include paths because they should be needed as relative includes are always based on the locations of the source file. Change-Id: I638ff43d641ca043a4fc06c0d901b11c6ff73542 Reviewed-on: https://boringssl-review.googlesource.com/5746 Reviewed-by: Adam Langley <agl@google.com>
2015-08-25 02:03:17 +01:00
#include <openssl/arm_arch.h>
Inital import. Initial fork from f2d678e6e89b6508147086610e985d4e8416e867 (1.0.2 beta). (This change contains substantial changes from the original and effectively starts a new history.)
2014-06-20 20:00:00 +01:00
Use a weak pointer for getauxval. The Android SDK version against which Chromium builds is too old to include sys/auxv.h. This change switches the ARM code to use a weak pointer for getauxval and to hard code the aux value numbers. It also switches the license on cpu-arm.c because there's no OpenSSL left in there now. Change-Id: I440cb9d533a06d8b245b189d8e5148fa33e29412 Reviewed-on: https://boringssl-review.googlesource.com/2880 Reviewed-by: David Benjamin <davidben@chromium.org> Reviewed-by: Adam Langley <agl@google.com>
2015-01-15 00:37:38 +00:00
Allow ARM capabilities to be set at compile time. Some ARM environments don't support |getauxval| or signals and need to configure the capabilities of the chip at compile time. This change adds defines that allow them to do so. Change-Id: I4e6987f69dd13444029bc7ac7ed4dbf8fb1faa76 Reviewed-on: https://boringssl-review.googlesource.com/6280 Reviewed-by: Adam Langley <agl@google.com>
2015-10-16 23:46:46 +01:00
extern uint32_t OPENSSL_armcap_P;
Allow |CRYPTO_is_NEON_capable| to be known at compile time, if possible. If -mfpu=neon is passed then we don't need to worry about checking for NEON support at run time. This change allows |CRYPTO_is_NEON_capable| to statically return 1 in this case. This then allows the compiler to discard generic code in several cases. Change-Id: I3b229740ea3d5cb0a304f365c400a0996d0c66ef Reviewed-on: https://boringssl-review.googlesource.com/6523 Reviewed-by: David Benjamin <davidben@chromium.org> Reviewed-by: Adam Langley <agl@google.com>
2015-11-17 23:25:00 +00:00
char CRYPTO_is_NEON_capable_at_runtime(void) {
Inital import. Initial fork from f2d678e6e89b6508147086610e985d4e8416e867 (1.0.2 beta). (This change contains substantial changes from the original and effectively starts a new history.)
2014-06-20 20:00:00 +01:00
return (OPENSSL_armcap_P & ARMV7_NEON) != 0;
}
Allow ARM capabilities to be set at compile time. Some ARM environments don't support |getauxval| or signals and need to configure the capabilities of the chip at compile time. This change adds defines that allow them to do so. Change-Id: I4e6987f69dd13444029bc7ac7ed4dbf8fb1faa76 Reviewed-on: https://boringssl-review.googlesource.com/6280 Reviewed-by: Adam Langley <agl@google.com>
2015-10-16 23:46:46 +01:00
int CRYPTO_is_ARMv8_AES_capable(void) {
return (OPENSSL_armcap_P & ARMV8_AES) != 0;
}
int CRYPTO_is_ARMv8_PMULL_capable(void) {
return (OPENSSL_armcap_P & ARMV8_PMULL) != 0;
}
#endif /* (defined(OPENSSL_ARM) || defined(OPENSSL_AARCH64)) &&
!defined(OPENSSL_STATIC_ARMCAP) */
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