Delyan Kratunov
cc4ef17c78
libbpf: Add subskeleton scaffolding
...
In symmetry with bpf_object__open_skeleton(),
bpf_object__open_subskeleton() performs the actual walking and linking
of maps, progs, and globals described by bpf_*_skeleton objects.
Signed-off-by: Delyan Kratunov <delyank@fb.com >
Signed-off-by: Andrii Nakryiko <andrii@kernel.org >
Link: https://lore.kernel.org/bpf/6942a46fbe20e7ebf970affcca307ba616985b15.1647473511.git.delyank@fb.com
2022-03-19 23:08:50 -07:00
Delyan Kratunov
e7084d4363
libbpf: Init btf_{key,value}_type_id on internal map open
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For internal and user maps, look up the key and value btf
types on open() and not load(), so that `bpf_map_btf_value_type_id`
is usable in `bpftool gen`.
Signed-off-by: Delyan Kratunov <delyank@fb.com >
Signed-off-by: Andrii Nakryiko <andrii@kernel.org >
Link: https://lore.kernel.org/bpf/78dbe4e457b4a05e098fc6c8f50014b680c86e4e.1647473511.git.delyank@fb.com
2022-03-19 23:08:50 -07:00
Delyan Kratunov
c2ec92f0ee
libbpf: .text routines are subprograms in strict mode
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Currently, libbpf considers a single routine in .text to be a program. This
is particularly confusing when it comes to library objects - a single routine
meant to be used as an extern will instead be considered a bpf_program.
This patch hides this compatibility behavior behind the pre-existing
SEC_NAME strict mode flag.
Signed-off-by: Delyan Kratunov <delyank@fb.com >
Signed-off-by: Andrii Nakryiko <andrii@kernel.org >
Link: https://lore.kernel.org/bpf/018de8d0d67c04bf436055270d35d394ba393505.1647473511.git.delyank@fb.com
2022-03-19 23:08:50 -07:00
Delyan Kratunov
20442822c0
libbpf: Deprecate priv/set_priv storage
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Arbitrary storage via bpf_*__set_priv/__priv is being deprecated
without a replacement ([1]). perf uses this capability, but most of
that is going away with the removal of prologue generation ([2]).
perf is already suppressing deprecation warnings, so the remaining
cleanup will happen separately.
[1]: Closes: https://github.com/libbpf/libbpf/issues/294
[2]: https://lore.kernel.org/bpf/20220123221932.537060-1-jolsa@kernel.org/
Signed-off-by: Delyan Kratunov <delyank@fb.com >
Signed-off-by: Andrii Nakryiko <andrii@kernel.org >
Link: https://lore.kernel.org/bpf/20220203180032.1921580-1-delyank@fb.com
2022-02-04 10:27:02 -08:00
Delyan Kratunov
352c13cdee
libbpf: Deprecate bpf_prog_test_run_xattr and bpf_prog_test_run
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Deprecate non-extendable bpf_prog_test_run{,_xattr} in favor of
OPTS-based bpf_prog_test_run_opts ([0]).
[0] Closes: https://github.com/libbpf/libbpf/issues/286
Signed-off-by: Delyan Kratunov <delyank@fb.com >
Signed-off-by: Andrii Nakryiko <andrii@kernel.org >
Link: https://lore.kernel.org/bpf/20220202235423.1097270-5-delyank@fb.com
2022-02-04 10:27:02 -08:00
Delyan Kratunov