On Sun, Jan 23, 2022 at 2:19 PM Jiri Olsa <jolsa@xxxxxxxxxx> wrote:
>
> Removing code for ebpf program prologue generation.
>
> The prologue code was used to get data for extra arguments specified
> in program section name, like:
>
> SEC("lock_page=__lock_page page->flags")
> int lock_page(struct pt_regs *ctx, int err, unsigned long flags)
> {
> return 1;
> }
>
> This code is using deprecated libbpf API and blocks its removal.
>
> This feature was not documented and broken for some time without
> anyone complaining, also original authors are not responding,
> so I'm removing it.
>
> Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
> ---
> tools/perf/Makefile.config | 11 -
> tools/perf/builtin-record.c | 14 -
> tools/perf/util/bpf-loader.c | 242 +---------------
> tools/perf/util/bpf-prologue.c | 508 ---------------------------------
> tools/perf/util/bpf-prologue.h | 37 ---
> 5 files changed, 1 insertion(+), 811 deletions(-)
Love the stats! Thanks for taking this on!
> delete mode 100644 tools/perf/util/bpf-prologue.c
> delete mode 100644 tools/perf/util/bpf-prologue.h
>
[...]
