Add the following functions to libbpf API:
* btf__add_type_attr()
* btf__add_decl_attr()
These functions allow to add to BTF the type tags and decl tags with
info->kflag set to 1. The kflag indicates that the tag directly
encodes an __attribute__ and not a normal tag.
See Documentation/bpf/btf.rst changes in the subsequent patch for
details on the semantics.
Suggested-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Ihor Solodrai <ihor.solodrai@linux.dev>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Reviewed-by: Alan Maguire <alan.maguire@oracle.com>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20250130201239.1429648-2-ihor.solodrai@linux.dev
run-on-arch-action is simply a wrapper around docker. There is no
value in using it in libbpf, as it is not complicated to run
non-native arch docker images directly on github-hosted runners.
Docker relies on qemu-user-static installed on the system to emulate
different architectures.
Recently there were various reports about multi-arch docker builds
failing with seemingly random issues, and it appears to boil down to
qemu [1]. I stumbled on this problem while updating s390x runners [2]
for BPF CI, and setting up more recent version of qemu helped.
This change addresses recent build failures on s390x and ppc64le.
[1] https://github.com/docker/setup-qemu-action/issues/188
[2] https://github.com/kernel-patches/runner/pull/69
[3] https://docs.docker.com/build/buildkit/#getting-started
Signed-off-by: Ihor Solodrai <ihor.solodrai@linux.dev>
Ihor Solodrai