Merge branch 'Improve set_attach_target() and deprecate open_opts.attach_prog_fd'

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Andrii Nakryiko says:

====================

This patch set deprecates bpf_object_open_opts.attach_prog_fd (in libbpf 0.7+)
by extending bpf_program__set_attach_target() to support some more flexible
scenarios. Existing fexit_bpf2bpf selftest is updated accordingly to not use
deprecated APIs.

While at it, also deprecate no-op relaxed_core_relocs option (they are always
"relaxed").

Last patch also const-ifies all high-level libbpf attach APIs, as there is no
reason for them to assume bpf_program/bpf_map modifications.

Patch #1 also removes one more unneeded use of find_sec_def(), relying on
prog->sec_def that's set during bpf_object__open() operation, simplifying
upcoming refactoring a little bit more.

All these changes are preparatory patches before SEC() handling refactoring
that will come next.
====================

Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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This commit is contained in:

Alexei Starovoitov 2021-09-17 09:04:13 -07:00

parent 336562752a 942025c9f3

commit f706f6c66c

5 changed files with 107 additions and 81 deletions

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98

tools/lib/bpf/libbpf.c

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39

tools/lib/bpf/libbpf.h

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5

tools/lib/bpf/libbpf_common.h

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3

tools/testing/selftests/bpf/prog_tests/core_reloc.c

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43

tools/testing/selftests/bpf/prog_tests/fexit_bpf2bpf.c

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