mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-07 06:53:33 +00:00
c9152b6f14
This change switches c++ exception handling from sjlj to standard dwarf. It's needed because clang for aarch64 doesn't support sjlj. It turns out that libunwind had a bare-metal configuration that made this easy to do. This change gets the new experimental cosmocc -mclang flag in a state of working so well that it can now be used to build all of llamafile and it goes 3x faster in terms of build latency, without trading away any perf. The int_fast16_t and int_fast32_t types are now always defined as 32-bit in the interest of having more abi consistency between cosmocc -mgcc and -mclang mode.
105 lines
2.9 KiB
C
105 lines
2.9 KiB
C
/*===---- rdseedintrin.h - RDSEED intrinsics -------------------------------===
|
|
*
|
|
* Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
* See https://llvm.org/LICENSE.txt for license information.
|
|
* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
*
|
|
*===-----------------------------------------------------------------------===
|
|
*/
|
|
|
|
#ifndef __IMMINTRIN_H
|
|
#error "Never use <rdseedintrin.h> directly; include <immintrin.h> instead."
|
|
#endif
|
|
|
|
#ifndef __RDSEEDINTRIN_H
|
|
#define __RDSEEDINTRIN_H
|
|
|
|
/* Define the default attributes for the functions in this file. */
|
|
#define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__, __target__("rdseed")))
|
|
|
|
/// Stores a hardware-generated 16-bit random value in the memory at \a __p.
|
|
///
|
|
/// The random number generator complies with NIST SP800-90B and SP800-90C.
|
|
///
|
|
/// \code{.operation}
|
|
/// IF HW_NRND_GEN.ready == 1
|
|
/// Store16(__p, HW_NRND_GEN.data)
|
|
/// result := 1
|
|
/// ELSE
|
|
/// Store16(__p, 0)
|
|
/// result := 0
|
|
/// END
|
|
/// \endcode
|
|
///
|
|
/// \headerfile <immintrin.h>
|
|
///
|
|
/// This intrinsic corresponds to the \c RDSEED instruction.
|
|
///
|
|
/// \param __p
|
|
/// Pointer to memory for storing the 16-bit random number.
|
|
/// \returns 1 if a random number was generated, 0 if not.
|
|
static __inline__ int __DEFAULT_FN_ATTRS
|
|
_rdseed16_step(unsigned short *__p)
|
|
{
|
|
return (int) __builtin_ia32_rdseed16_step(__p);
|
|
}
|
|
|
|
/// Stores a hardware-generated 32-bit random value in the memory at \a __p.
|
|
///
|
|
/// The random number generator complies with NIST SP800-90B and SP800-90C.
|
|
///
|
|
/// \code{.operation}
|
|
/// IF HW_NRND_GEN.ready == 1
|
|
/// Store32(__p, HW_NRND_GEN.data)
|
|
/// result := 1
|
|
/// ELSE
|
|
/// Store32(__p, 0)
|
|
/// result := 0
|
|
/// END
|
|
/// \endcode
|
|
///
|
|
/// \headerfile <immintrin.h>
|
|
///
|
|
/// This intrinsic corresponds to the \c RDSEED instruction.
|
|
///
|
|
/// \param __p
|
|
/// Pointer to memory for storing the 32-bit random number.
|
|
/// \returns 1 if a random number was generated, 0 if not.
|
|
static __inline__ int __DEFAULT_FN_ATTRS
|
|
_rdseed32_step(unsigned int *__p)
|
|
{
|
|
return (int) __builtin_ia32_rdseed32_step(__p);
|
|
}
|
|
|
|
#ifdef __x86_64__
|
|
/// Stores a hardware-generated 64-bit random value in the memory at \a __p.
|
|
///
|
|
/// The random number generator complies with NIST SP800-90B and SP800-90C.
|
|
///
|
|
/// \code{.operation}
|
|
/// IF HW_NRND_GEN.ready == 1
|
|
/// Store64(__p, HW_NRND_GEN.data)
|
|
/// result := 1
|
|
/// ELSE
|
|
/// Store64(__p, 0)
|
|
/// result := 0
|
|
/// END
|
|
/// \endcode
|
|
///
|
|
/// \headerfile <immintrin.h>
|
|
///
|
|
/// This intrinsic corresponds to the \c RDSEED instruction.
|
|
///
|
|
/// \param __p
|
|
/// Pointer to memory for storing the 64-bit random number.
|
|
/// \returns 1 if a random number was generated, 0 if not.
|
|
static __inline__ int __DEFAULT_FN_ATTRS
|
|
_rdseed64_step(unsigned long long *__p)
|
|
{
|
|
return (int) __builtin_ia32_rdseed64_step(__p);
|
|
}
|
|
#endif
|
|
|
|
#undef __DEFAULT_FN_ATTRS
|
|
|
|
#endif /* __RDSEEDINTRIN_H */
|