info: expose ksym info and func info by ProgramInfo #1576
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Exposes additional metadata fields from `bpf_prog_info` to `ProgramInfo`: - nr_jited_ksyms - jited_ksyms Meanwhile, expose ksym addresses from ProgramInfo. `bpf_prog_info` supports ksym info since commit [bpf: get kernel symbol addresses via syscall](torvalds/linux@dbecd73). Signed-off-by: Leon Hwang <hffilwlqm@gmail.com>
`bpf_prog_info` supports func info since commit [bpf: Introduce bpf_func_info](torvalds/linux@838e969). Signed-off-by: Leon Hwang <hffilwlqm@gmail.com>
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In pwru, I'm planning to improve the tracing info of bpf prog by mapping ksym addresses to bpf prog info, i.e. the function name of subprograms.
Therefore, it requires more prog info exposed from ProgramInfo, including ksym info and func info.
bpf_prog_infosupports ksym info since commit torvalds/linux@dbecd73, and supports func info since commit torvalds/linux@838e969.