sigctx 1457 arch/powerpc/kernel/signal_32.c struct sigcontext sigctx; sigctx 1472 arch/powerpc/kernel/signal_32.c if (copy_from_user(&sigctx, sc, sizeof(sigctx))) sigctx 1480 arch/powerpc/kernel/signal_32.c set.sig[0] = sigctx.oldmask + ((long)(sigctx._unused[3]) << 32); sigctx 1482 arch/powerpc/kernel/signal_32.c set.sig[0] = sigctx.oldmask; sigctx 1483 arch/powerpc/kernel/signal_32.c set.sig[1] = sigctx._unused[3]; sigctx 1500 arch/powerpc/kernel/signal_32.c sr = (struct mcontext __user *)from_user_ptr(sigctx.regs);