SIG_R1              8 src/pkg/runtime/signal_freebsd_arm.h #define SIG_R1(info, ctxt) (SIG_REGS(ctxt).__gregs[1])
SIG_R1              8 src/pkg/runtime/signal_linux_arm.h #define SIG_R1(info, ctxt) (SIG_REGS(ctxt).arm_r1)
SIG_R1              8 src/pkg/runtime/signal_netbsd_arm.h #define SIG_R1(info, ctxt) (SIG_REGS(ctxt).__gregs[REG_R1])