@@ -2346,6 +2346,7 @@ SYSTEM_FUNCS="
strerror_r
sysconf
sysctl
+ sysctlbyname
usleep
UTGetOSTypeFromString
VirtualAlloc
@@ -6384,6 +6385,7 @@ check_func_headers mach/mach_time.h mach_absolute_time
check_func_headers stdlib.h getenv
check_func_headers sys/stat.h lstat
check_func_headers sys/auxv.h getauxval
+check_func_headers sys/sysctl.h sysctlbyname
check_func_headers windows.h GetModuleHandle
check_func_headers windows.h GetProcessAffinityMask
@@ -47,6 +47,28 @@ static int detect_flags(void)
return flags;
}
+#elif defined(__APPLE__) && HAVE_SYSCTLBYNAME
+#include <sys/sysctl.h>
+
+static int detect_flags(void)
+{
+ uint32_t value = 0;
+ size_t size;
+ int flags = 0;
+
+ size = sizeof(value);
+ if (!sysctlbyname("hw.optional.arm.FEAT_DotProd", &value, &size, NULL, 0)) {
+ if (value)
+ flags |= AV_CPU_FLAG_DOTPROD;
+ }
+ size = sizeof(value);
+ if (!sysctlbyname("hw.optional.arm.FEAT_I8MM", &value, &size, NULL, 0)) {
+ if (value)
+ flags |= AV_CPU_FLAG_I8MM;
+ }
+ return flags;
+}
+
#else
static int detect_flags(void)