From: Alexei Starovoitov <ast@xxxxxxxxxx> CO-RE in the kernel support allows bpf preload to switch to light skeleton and remove libbpf dependency. This reduces the size of bpf_preload_umd from 300kbyte to 19kbyte and eventually will make "kernel skeleton" possible. Alexei Starovoitov (7): libbpf: Add support for bpf iter in light skeleton. libbpf: Open code low level bpf commands. libbpf: Open code raw_tp_open and link_create commands. bpf: Remove unnecessary setrlimit from bpf preload. bpf: Convert bpf preload to light skeleton. bpf: Open code obj_get_info_by_fd in bpf preload. bpf: Drop libbpf, libelf, libz dependency from bpf preload. kernel/bpf/preload/Makefile | 28 +- kernel/bpf/preload/iterators/Makefile | 6 +- kernel/bpf/preload/iterators/iterators.c | 28 +- .../bpf/preload/iterators/iterators.lskel.h | 428 ++++++++++++++++++ kernel/bpf/preload/iterators/iterators.skel.h | 412 ----------------- tools/bpf/bpftool/gen.c | 7 +- tools/lib/bpf/skel_internal.h | 70 ++- 7 files changed, 527 insertions(+), 452 deletions(-) create mode 100644 kernel/bpf/preload/iterators/iterators.lskel.h delete mode 100644 kernel/bpf/preload/iterators/iterators.skel.h -- 2.30.2
