mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-09-11 13:44:43 -04:00
a28441dd29
Extend existing kprobe_multi_test subtests to validate the kprobe.session exact function name optimization: In kprobe_multi_session.c, add test_kprobe_syms which attaches a kprobe.session program to an exact function name (bpf_fentry_test1) exercising the fast syms[] path that bypasses kallsyms parsing. It calls session_check() so bpf_fentry_test1 is hit by both the wildcard and exact probes, and test_session_skel_api validates kprobe_session_result[0] == 4 (entry + return from each probe). In test_attach_api_fails, add fail_7 and fail_8 verifying error code consistency between the wildcard pattern path (slow, parses kallsyms) and the exact function name path (fast, uses syms[] array). Both paths must return -ENOENT for non-existent functions. Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@crowdstrike.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20260302200837.317907-4-andrey.grodzovsky@crowdstrike.com