Symbol: _REG_X0
lib/libc/arch/aarch64/gen/_lwp.c
59
u->uc_mcontext.__gregs[_REG_X0] = (__greg_t)(uintptr_t)arg;
lib/libc/arch/aarch64/gen/makecontext.c
68
gr[_REG_X0 + i] = va_arg(ap, __greg_t);
sys/arch/arm/include/mcontext.h
111
#define _REG_RV _REG_X0