REG_ARG1           29 arch/sh/kernel/signal_64.c #define REG_ARG1 2
REG_ARG1           38 samples/seccomp/bpf-direct.c #define REG_ARG1	REG_ECX
REG_ARG1           47 samples/seccomp/bpf-direct.c #define REG_ARG1	REG_RSI