* Piotr Figiel: > diff --git a/include/uapi/linux/ptrace.h b/include/uapi/linux/ptrace.h > index 83ee45fa634b..d54cf6b6ce7c 100644 > --- a/include/uapi/linux/ptrace.h > +++ b/include/uapi/linux/ptrace.h > @@ -102,6 +102,14 @@ struct ptrace_syscall_info { > }; > }; > > +#define PTRACE_GET_RSEQ_CONFIGURATION 0x420f > + > +struct ptrace_rseq_configuration { > + __u64 rseq_abi_pointer; > + __u32 signature; > + __u32 pad; > +}; The flags and the structure size appear to be missing here. Thanks, Florian