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| author | Grant Seltzer <grantseltzer@gmail.com> | 2021-02-22 22:58:46 +0300 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2021-02-24 19:24:37 +0300 |
| commit | b9fc8b4a591811546fec2dbef7e9f809362100c9 (patch) | |
| tree | eaece48e6c6e55335c1af28dbf2747b91dcd1c72 /tools | |
| parent | d310ec03a34e92a77302edb804f7d68ee4f01ba0 (diff) | |
| download | linux-b9fc8b4a591811546fec2dbef7e9f809362100c9.tar.xz | |
bpf: Add kernel/modules BTF presence checks to bpftool feature command
This adds both the CONFIG_DEBUG_INFO_BTF and CONFIG_DEBUG_INFO_BTF_MODULES
kernel compile option to output of the bpftool feature command.
This is relevant for developers that want to account for data structure
definition differences between kernels.
Signed-off-by: Grant Seltzer <grantseltzer@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20210222195846.155483-1-grantseltzer@gmail.com
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/bpf/bpftool/feature.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/bpf/bpftool/feature.c b/tools/bpf/bpftool/feature.c index 359960a8f1de..40a88df275f9 100644 --- a/tools/bpf/bpftool/feature.c +++ b/tools/bpf/bpftool/feature.c @@ -336,6 +336,10 @@ static void probe_kernel_image_config(const char *define_prefix) { "CONFIG_BPF_JIT", }, /* Avoid compiling eBPF interpreter (use JIT only) */ { "CONFIG_BPF_JIT_ALWAYS_ON", }, + /* Kernel BTF debug information available */ + { "CONFIG_DEBUG_INFO_BTF", }, + /* Kernel module BTF debug information available */ + { "CONFIG_DEBUG_INFO_BTF_MODULES", }, /* cgroups */ { "CONFIG_CGROUPS", }, |