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tools/bpf/bpftool: Reset vmlinux BTF after struct_ops commands

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struct_ops frees the global btf_vmlinux object.

In batch mode, a later struct_ops command can reuse stale state.

Reset the BTF pointer and cached map info state.

Fixes: 65c9362859 ("bpftool: Add struct_ops support")
Signed-off-by: Yichong Chen <chenyichong@uniontech.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Reviewed-by: Emil Tsalapatis <emil@etsalapatis.com>
Link: https://lore.kernel.org/bpf/9F9017160ABE125F+20260624025055.1574875-3-chenyichong@uniontech.com
This commit is contained in:
Yichong Chen
2026-06-24 10:50:55 +08:00
committed by Andrii Nakryiko
parent 66d7e39e49
commit f7f540e197
1 changed files with 4 additions and 0 deletions
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4
tools/bpf/bpftool/struct_ops.c
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@@ -643,6 +643,10 @@ int do_struct_ops(int argc, char **argv)
err = cmd_select(cmds, argc, argv, do_help);
btf__free(btf_vmlinux);
btf_vmlinux = NULL;
map_info_type = NULL;
map_info_alloc_len = 0;
map_info_type_id = 0;
return err;
}