Re: [PATCH v4 bpf-next] Add CONFIG_DEBUG_INFO_BTF and CONFIG_DEBUG_INFO_BTF_MODULES check to bpftool feature command
From: Andrii Nakryiko <hidden>
Date: 2021-02-23 06:38:39
Also in:
bpf
On Mon, Feb 22, 2021 at 11:59 AM grantseltzer [off-list ref] wrote:
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 <redacted> ---
Applied to bpf-next, but adjusted subject to shorter: "Add kernel/modules BTF presence checks to bpftool feature command"
quoted hunk ↗ jump to hunk
tools/bpf/bpftool/feature.c | 4 ++++ 1 file changed, 4 insertions(+)diff --git a/tools/bpf/bpftool/feature.c b/tools/bpf/bpftool/feature.c index 359960a8f..40a88df27 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", }, --2.29.2