• Jiri Olsa's avatar
    perf annotate: Add basic support for bpf_image · 3c29d448
    Jiri Olsa authored
    Add the DSO_BINARY_TYPE__BPF_IMAGE dso binary type to recognize BPF
    images that carry trampoline or dispatcher.
    
    Upcoming patches will add support to read the image data, store it
    within the BPF feature in perf.data and display it for annotation
    purposes.
    
    Currently we only display following message:
    
      # ./perf annotate bpf_trampoline_24456 --stdio
       Percent |      Source code & Disassembly of . for cycles (504  ...
      --------------------------------------------------------------- ...
               :       to be implemented
    Signed-off-by: default avatarJiri Olsa <jolsa@kernel.org>
    Acked-by: default avatarSong Liu <songliubraving@fb.com>
    Cc: Alexei Starovoitov <ast@kernel.org>
    Cc: Andrii Nakryiko <andriin@fb.com>
    Cc: Björn Töpel <bjorn.topel@intel.com>
    Cc: Daniel Borkmann <daniel@iogearbox.net>
    Cc: David S. Miller <davem@redhat.com>
    Cc: Jakub Kicinski <kuba@kernel.org>
    Cc: Jesper Dangaard Brouer <hawk@kernel.org>
    Cc: John Fastabend <john.fastabend@gmail.com>
    Cc: Martin KaFai Lau <kafai@fb.com>
    Cc: Yonghong Song <yhs@fb.com>
    Link: https://lore.kernel.org/bpf/20200312195610.346362-16-jolsa@kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
    3c29d448
machine.c 65.6 KB