Re: [PATCH bpf-next 1/3] perf/core: introduce perf_event_mmap_bpf_prog

On 9/19/18 4:30 PM, Song Liu wrote: > > >> On Sep 19, 2018, at 3:39 PM, Alexei Starovoitov wrote: >> >> introduce perf_event_mmap_bpf_prog() helper to emit RECORD_MMAP events >> into perf ring buffer. >> It's used by bpf load/unload logic to notify user space of addresses >> and names of JITed bpf

Re: [PATCH bpf-next 1/3] perf/core: introduce perf_event_mmap_bpf_prog

> On Sep 19, 2018, at 3:39 PM, Alexei Starovoitov wrote: > > introduce perf_event_mmap_bpf_prog() helper to emit RECORD_MMAP events > into perf ring buffer. > It's used by bpf load/unload logic to notify user space of addresses > and names of JITed bpf programs. > > Note that event->mmap.pid

[PATCH bpf-next 1/3] perf/core: introduce perf_event_mmap_bpf_prog

introduce perf_event_mmap_bpf_prog() helper to emit RECORD_MMAP events into perf ring buffer. It's used by bpf load/unload logic to notify user space of addresses and names of JITed bpf programs. Note that event->mmap.pid == -1 is an existing indicator of kernel event. In addition use event->mmap.