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libbpf: support "module:function" syntax for tracing programs #6890

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libbpf: support "module:function" syntax for tracing programs #6890

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Pull request for series with
subject: libbpf: support "module:function" syntax for tracing programs
version: 1
url: https://patchwork.kernel.org/project/netdevbpf/list/?series=848233

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Upstream branch: e51b907
series: https://patchwork.kernel.org/project/netdevbpf/list/?series=848233
version: 1

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Upstream branch: 6e25bcf
series: https://patchwork.kernel.org/project/netdevbpf/list/?series=848233
version: 1

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At least one diff in series https://patchwork.kernel.org/project/netdevbpf/list/?series=848233 expired. Closing PR.

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Upstream branch: 1bba3b3
series: https://patchwork.kernel.org/project/netdevbpf/list/?series=849212
version: 2

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Upstream branch: 05cbc21
series: https://patchwork.kernel.org/project/netdevbpf/list/?series=849212
version: 2

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Upstream branch: 06ebfd1
series: https://patchwork.kernel.org/project/netdevbpf/list/?series=849212
version: 2

libbpf: support "module:function" syntax for tracing programs
abb2df2 
In some situations, it is useful to explicitly specify a kernel module
to search for a tracing program target (e.g. when a function of the same
name exists in multiple modules or in vmlinux).

This patch enables that by allowing the "module:function" syntax for the
find_kernel_btf_id function. Thanks to this, the syntax can be used both
from a SEC macro (i.e. `SEC(fentry/module:function)`) and via the
bpf_program__set_attach_target API call.

Signed-off-by: Viktor Malik <vmalik@redhat.com>
selftests/bpf: add tests for the "module:function" syntax
9ecebfa 
The previous patch added support for the "module:function" syntax for
tracing programs. This adds tests for explicitly specifying the module
name via the SEC macro and via the bpf_program__set_attach_target call.

Signed-off-by: Viktor Malik <vmalik@redhat.com>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
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Upstream branch: 9a1a2cb
series: https://patchwork.kernel.org/project/netdevbpf/list/?series=849212
version: 2

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At least one diff in series https://patchwork.kernel.org/project/netdevbpf/list/?series=849212 irrelevant now. Closing PR.

@kernel-patches-daemon-bpf kernel-patches-daemon-bpf bot deleted the series/848233=>bpf-next branch May 1, 2024 17:10
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