mirror of
https://github.com/VectorCamp/vectorscan.git
synced 2025-11-15 17:02:14 +03:00
1c1ff6f279
Vectorscan requires SSE4.2 as a minimum on x86_64. For Hyperscan this used to be SSSE3. Applications that use the library call hs_valid_platform() to check if the CPU fulfils this minimum requirement. However, when Vectorscan upgraded to SSE4.2, the check was not updated. This leads to the library trying to execute instructions that are not supported, resulting in the application to crash. This might not have been noticed as the CPUs that do not support SSE4.2 are rather old and unlikely to run any load where performance is an issue. However, I believe that the library should not let the application crash. Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
63 lines
2.5 KiB
C
63 lines
2.5 KiB
C
/*
|
|
* Copyright (c) 2016-2017, Intel Corporation
|
|
* Copyright (c) 2020-2023, VectorCamp PC
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* * Redistributions of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* * Neither the name of Intel Corporation nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "config.h"
|
|
#include "hs_common.h"
|
|
#include "ue2common.h"
|
|
#if !defined(VS_SIMDE_BACKEND)
|
|
#if defined(ARCH_IA32) || defined(ARCH_X86_64)
|
|
#include "util/arch/x86/cpuid_inline.h"
|
|
#elif defined(ARCH_AARCH64)
|
|
#include "util/arch/arm/cpuid_inline.h"
|
|
#endif
|
|
#endif
|
|
|
|
HS_PUBLIC_API
|
|
hs_error_t HS_CDECL hs_valid_platform(void) {
|
|
/* Vectorscan requires SSE4.2, anything else is a bonus */
|
|
#if !defined(VS_SIMDE_BACKEND) && (defined(ARCH_IA32) || defined(ARCH_X86_64))
|
|
// cppcheck-suppress knownConditionTrueFalse
|
|
if (check_sse42()) {
|
|
return HS_SUCCESS;
|
|
} else {
|
|
return HS_ARCH_ERROR;
|
|
}
|
|
#elif !defined(VS_SIMDE_BACKEND) && (defined(ARCH_ARM32) || defined(ARCH_AARCH64))
|
|
//check_neon returns true for now
|
|
// cppcheck-suppress knownConditionTrueFalse
|
|
if (check_neon()) {
|
|
return HS_SUCCESS;
|
|
} else {
|
|
return HS_ARCH_ERROR;
|
|
}
|
|
#elif defined(ARCH_PPC64EL) || defined(VS_SIMDE_BACKEND)
|
|
return HS_SUCCESS;
|
|
#endif
|
|
}
|