upstream/emscripten/system/lib/libc/musl/src/string/explicit_bzero.c

#define _BSD_SOURCE
#include <string.h>

void explicit_bzero(void *d, size_t n)
{
	d = memset(d, 0, n);
	__asm__ __volatile__ ("" : : "r"(d) : "memory");
}