Re: [PATCH v2] libbpf: Ignore exception frame section

["Kumar Kartikeya Dwivedi" <memxor@gmail.com>]

On Mon Aug 24, 2026 at 3:01 PM CEST, Tw wrote:
> Exception handling in BPF program is not supported right now, let's skip it.
> BTW, I found this when building BPF with Zig compiler[1].
>
> [1]: https://github.com/tw4452852/bb
>
> Signed-off-by: Tw <tw19881113@gmail.com>

You need to have your full real name in the SoB tag. Patches cannot be accepted
otherwise.

pw-bot: cr

> ---
> v2:
>  Revise the commit message.
>
>  tools/lib/bpf/libbpf.c | 3 ++-
>  tools/lib/bpf/linker.c | 3 ++-
>  2 files changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
> index b749c0174..05727c418 100644
> --- a/tools/lib/bpf/libbpf.c
> +++ b/tools/lib/bpf/libbpf.c
> @@ -3867,7 +3867,8 @@ static Elf64_Rel *elf_rel_by_idx(Elf_Data *data, size_t idx)
>  static bool is_sec_name_dwarf(const char *name)
>  {
>  	/* approximation, but the actual list is too long */
> -	return str_has_pfx(name, ".debug_");
> +	return str_has_pfx(name, ".debug_") ||
> +		   strcmp(name, ".eh_frame") == 0;
>  }
>
>  static bool ignore_elf_section(Elf64_Shdr *hdr, const char *name)
> diff --git a/tools/lib/bpf/linker.c b/tools/lib/bpf/linker.c
> index 78f92c392..1fb0efdbf 100644
> --- a/tools/lib/bpf/linker.c
> +++ b/tools/lib/bpf/linker.c
> @@ -599,7 +599,8 @@ int bpf_linker__add_buf(struct bpf_linker *linker, void *buf, size_t buf_sz,
>  static bool is_dwarf_sec_name(const char *name)
>  {
>  	/* approximation, but the actual list is too long */
> -	return strncmp(name, ".debug_", sizeof(".debug_") - 1) == 0;
> +	return strncmp(name, ".debug_", sizeof(".debug_") - 1) == 0 ||
> +		   strcmp(name, ".eh_frame") == 0;
>  }
>
>  static bool is_ignored_sec(struct src_sec *sec)