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-rw-r--r--AK/StdLibExtras.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/AK/StdLibExtras.h b/AK/StdLibExtras.h
index 04c9ce72d0..6a282b98ab 100644
--- a/AK/StdLibExtras.h
+++ b/AK/StdLibExtras.h
@@ -11,14 +11,18 @@
#include <AK/Types.h>
+#ifndef KERNEL
extern "C" void* mmx_memcpy(void* to, const void* from, size_t);
+#endif
[[gnu::always_inline]] inline void fast_dword_copy(dword* dest, const dword* src, size_t count)
{
+#ifndef KERNEL
if (count >= 256) {
mmx_memcpy(dest, src, count * sizeof(count));
return;
}
+#endif
asm volatile(
"rep movsl\n"
: "=S"(src), "=D"(dest), "=c"(count)