sys_recvmsg 816 include/linux/syscalls.h asmlinkage long sys_recvmsg(int fd, struct user_msghdr __user *msg, unsigned flags); sys_recvmsg 617 include/uapi/asm-generic/unistd.h __SC_COMP(__NR_recvmsg, sys_recvmsg, compat_sys_recvmsg) sys_recvmsg 617 tools/include/uapi/asm-generic/unistd.h __SC_COMP(__NR_recvmsg, sys_recvmsg, compat_sys_recvmsg)