From: Andrii Nakryiko Date: Fri, 7 May 2021 05:41:18 +0000 (-0700) Subject: libbpf: Treat STV_INTERNAL same as STV_HIDDEN for functions X-Git-Tag: v5.14-rc1~119^2~501^2~14 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=e5670fa0293b05e8e24dae7d18481aba281cb85d;p=thirdparty%2Flinux.git libbpf: Treat STV_INTERNAL same as STV_HIDDEN for functions Do the same global -> static BTF update for global functions with STV_INTERNAL visibility to turn on static BPF verification mode. Signed-off-by: Andrii Nakryiko Signed-off-by: Alexei Starovoitov Link: https://lore.kernel.org/bpf/20210507054119.270888-7-andrii@kernel.org --- diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c index e2a3cf4378140..b8cf93fa1b4de 100644 --- a/tools/lib/bpf/libbpf.c +++ b/tools/lib/bpf/libbpf.c @@ -700,13 +700,14 @@ bpf_object__add_programs(struct bpf_object *obj, Elf_Data *sec_data, if (err) return err; - /* if function is a global/weak symbol, but has hidden - * visibility (STV_HIDDEN), mark its BTF FUNC as static to - * enable more permissive BPF verification mode with more - * outside context available to BPF verifier + /* if function is a global/weak symbol, but has restricted + * (STV_HIDDEN or STV_INTERNAL) visibility, mark its BTF FUNC + * as static to enable more permissive BPF verification mode + * with more outside context available to BPF verifier */ if (GELF_ST_BIND(sym.st_info) != STB_LOCAL - && GELF_ST_VISIBILITY(sym.st_other) == STV_HIDDEN) + && (GELF_ST_VISIBILITY(sym.st_other) == STV_HIDDEN + || GELF_ST_VISIBILITY(sym.st_other) == STV_INTERNAL)) prog->mark_btf_static = true; nr_progs++;