__NR_rt_sigreturn  555 sandbox/linux/services/arm_linux_syscalls.h #define __NR_rt_sigreturn (__NR_SYSCALL_BASE+173)
__NR_rt_sigreturn  706 sandbox/linux/services/x86_32_linux_syscalls.h #define __NR_rt_sigreturn 173
__NR_rt_sigreturn   74 sandbox/linux/services/x86_64_linux_syscalls.h #define __NR_rt_sigreturn 15