Fix broken rdrand implementation #154
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_rdrand{32,64}_step returns 1 on success and zero on failure. See:
https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_rdrand64_step&expand=4539
This means that the current implementation will actually hang on most processors:
https://play.rust-lang.org/?version=stable&mode=debug&edition=2018&gist=716f8f6a77ab6be76800ff7ee5d37970
This fixes the implementation to use the reccomdendation from the Intel SDM.
Signed-off-by: Joe Richey <joerichey@google.com>
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154: Fix broken rdrand implementation r=stlankes a=josephlr
_rdrand{32,64}_step returns 1 on success and zero on failure. See:
https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_rdrand64_step&expand=4539
This means that the current implementation will actually hang on most processors:
https://play.rust-lang.org/?version=stable&mode=debug&edition=2018&gist=716f8f6a77ab6be76800ff7ee5d37970
This fixes the implementation to use the reccomdendation from the Intel SDM.
Signed-off-by: Joe Richey <joerichey@google.com>
Co-authored-by: Joe Richey <joerichey@google.com>
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_rdrand{32,64}_step returns 1 on success and zero on failure. See:
https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_rdrand64_step&expand=4539
This means that the current implementation will actually hang on most processors:
https://play.rust-lang.org/?version=stable&mode=debug&edition=2018&gist=716f8f6a77ab6be76800ff7ee5d37970
This fixes the implementation to use the reccomdendation from the Intel SDM.
Signed-off-by: Joe Richey joerichey@google.com