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Add fast AES detection for FreeBSD/OpenBSD on ARM/AArch64 using elf_aux_info()

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This commit is contained in:
Brad Smith
2025-10-21 11:14:33 -04:00
committed by Cameron Gutman
parent 14027f3c74
commit 4ec549650d
1 changed files with 12 additions and 0 deletions
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12
app/streaming/streamutils.cpp
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@@ -68,6 +68,10 @@ static int __riscv_hwprobe(struct riscv_hwprobe *pairs, size_t pair_count,
#endif
#endif
#if defined(Q_OS_FREEBSD) || defined(Q_OS_OPENBSD)
#include <sys/auxv.h>
#endif
Uint32 StreamUtils::getPlatformWindowFlags()
{
#if defined(Q_OS_DARWIN)
@@ -176,6 +180,14 @@ bool StreamUtils::hasFastAes()
#elif defined(Q_OS_DARWIN)
// Everything that runs Catalina and later has AES-NI or ARMv8 crypto instructions
return true;
#elif (defined(Q_OS_FREEBSD) || defined(Q_OS_OPENBSD)) && defined(Q_PROCESSOR_ARM) && QT_POINTER_SIZE == 4
unsigned long hwcap2 = 0;
elf_aux_info(AT_HWCAP2, &hwcap2, sizeof(hwcap2));
return (hwcap2 & HWCAP2_AES);
#elif (defined(Q_OS_FREEBSD) || defined(Q_OS_OPENBSD)) && defined(Q_PROCESSOR_ARM) && QT_POINTER_SIZE == 8
unsigned long hwcap = 0;
elf_aux_info(AT_HWCAP, &hwcap, sizeof(hwcap));
return (hwcap & HWCAP_AES);
#elif defined(Q_OS_LINUX) && defined(Q_PROCESSOR_ARM) && QT_POINTER_SIZE == 4
return getauxval(AT_HWCAP2) & HWCAP2_AES;
#elif defined(Q_OS_LINUX) && defined(Q_PROCESSOR_ARM) && QT_POINTER_SIZE == 8