compat_sys_sigaction 148 arch/arm64/include/asm/unistd32.h __SYSCALL(__NR_sigaction, compat_sys_sigaction) compat_sys_sigaction 146 arch/sparc/kernel/sys_sparc32.c return compat_sys_sigaction(-sig, act, oact); compat_sys_sigaction 909 include/linux/compat.h asmlinkage long compat_sys_sigaction(int sig,