Messages in this thread | | | Date | Sat, 26 Nov 2016 09:12:19 -0800 | From | Alexei Starovoitov <> | Subject | Re: [PATCH v3 03/30] tools lib bpf: Retrive bpf_map through offset of bpf_map_def |
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On Sat, Nov 26, 2016 at 07:03:27AM +0000, Wang Nan wrote: > Add a new API to libbpf, caller is able to get bpf_map through the > offset of bpf_map_def to 'maps' section. > > The API will be used to help jitted perf hook code find fd of a map. > > Signed-off-by: Wang Nan <wangnan0@huawei.com> ... > +struct bpf_map * > +bpf_object__find_map_by_offset(struct bpf_object *obj, size_t offset) > +{ > + int i; > + > + for (i = 0; i < obj->nr_maps; i++) { > + if (obj->maps[i].offset == offset) > + return &obj->maps[i]; > + } > + return ERR_PTR(-ENOENT); > +}
Acked-by: Alexei Starovoitov <ast@kernel.org>
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