libbpf: deprecate bpf_program__get_prog_info_linear #1911
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In preparation for bpf_program__get_prog_info_linear, move the single use in libbpf to call bpf_obj_get_info_by_fd directly. Signed-off-by: Dave Marchevsky <davemarchevsky@fb.com>
To prepare for impending deprecation of libbpf's bpf_program__get_prog_info_linear, migrate uses of this function to use bpf_obj_get_info_by_fd. Since the profile_target_name and dump_prog_id_as_func_ptr helpers were only looking at the first func_info, avoid grabbing the rest to save a malloc. For do_dump, add a more full-featured helper, but avoid free/realloc of buffer when possible for multi-prog dumps. Signed-off-by: Dave Marchevsky <davemarchevsky@fb.com>
To prepare for impending deprecation of libbpf's bpf_program__get_prog_info_linear, pull in the function and associated helpers into the perf codebase and migrate existing uses to the perf copy. Since libbpf's deprecated definitions will still be visible to perf, it is necessary to rename perf's definitions. Signed-off-by: Dave Marchevsky <davemarchevsky@fb.com>
As part of the road to libbpf 1.0, and discussed in libbpf issue tracker [0], bpf_program__get_prog_info_linear and its associated structs and helper functions should be deprecated. The functionality is too specific to the needs of 'perf', and there's little/no out-of-tree usage to preclude introduction of a more general helper in the future. [0] Closes: libbpf/libbpf#313 Signed-off-by: Dave Marchevsky <davemarchevsky@fb.com>
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At least one diff in series https://patchwork.kernel.org/project/netdevbpf/list/?series=560891 irrelevant now. Closing PR. |
Pull request for series with
subject: libbpf: deprecate bpf_program__get_prog_info_linear
version: 1
url: https://patchwork.kernel.org/project/netdevbpf/list/?series=560793