This patch set adds more functions to bpf_d_path allowlist. Patch 1 is prep work which updates resolve_btfids to emit warnings on missing symbols instead of aborting kernel build process. Patch 2 expands bpf_d_path allowlist. Changes since v4: [4] - Addressed Andrii's comments. Update warning message. Changes since v3: [3] - Addressed Yonghong's comments. Sort allowlist and add security_bprm_* Changes since v2: [2] - Andrii suggested that we should first address an issue of .BTF_ids before adding more symbols to .BTF_ids. Fixed that. - Yaniv proposed adding security_sb_mount and security_bprm_check. Added them. Changes since v1: [1] - Alexei and Yonghong suggested that bpf_d_path helper could also apply to vfs_* and security_file_* kernel functions. Added them. [1] https://lore.kernel.org/bpf/20210712162424.2034006-1-hengqi.chen@xxxxxxxxx/ [2] https://lore.kernel.org/bpf/20210719151753.399227-1-hengqi.chen@xxxxxxxxx/ [3] https://lore.kernel.org/bpf/20210725141814.2000828-3-hengqi.chen@xxxxxxxxx/ [4] https://lore.kernel.org/bpf/20210725141814.2000828-2-hengqi.chen@xxxxxxxxx/ Hengqi Chen (2): tools/resolve_btfids: emit warnings and patch zero id for missing symbols bpf: expose bpf_d_path helper to vfs_* and security_* functions kernel/trace/bpf_trace.c | 60 ++++++++++++++++++++++++++++++--- tools/bpf/resolve_btfids/main.c | 13 +++---- 2 files changed, 63 insertions(+), 10 deletions(-) -- 2.25.1
