COPY2              10 arch/x86/um/os-Linux/mcontext.c #define COPY2(X,Y) regs->gp[X] = mc->gregs[REG_##Y]
COPY2              20 arch/x86/um/os-Linux/mcontext.c #define COPY2(X,Y) regs->gp[X/sizeof(unsigned long)] = mc->gregs[REG_##Y]