On Wed, 2 Aug 2023 11:24:12 -0700 Alexei Starovoitov <alexei.starovoitov@xxxxxxxxx> wrote: > This is a non starter. > bpf progs expect arch dependent 'struct pt_regs *' and we cannot change that. If the progs are compiled into native code, isn't there optimizations that could be done? That is, if ftrace_regs is available, and the bpf program is just using the subset of pt_regs, is it possible that it could be compiled to use ftrace_regs? Forgive my ignorance on how BPF programs turn into executables when running in the kernel. -- Steve