mirrors/linux
2
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-05-16 04:21:09 -04:00
Code Issues Packages Projects Releases Wiki Activity

libbpf: Use direct error codes for kprobe/uprobe attach

Browse Source 
perf_event_open_probe() and perf_event_{k,u}probe_open_legacy() helpers
are returning negative error codes directly on failure. This commit
changes bpf_program__attach_{k,u}probe_opts() to use those return
values directly instead of re-reading possibly changed errno.

Signed-off-by: Hoyeon Lee <hoyeon.lee@suse.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/bpf/20260401143116.185049-2-hoyeon.lee@suse.com
This commit is contained in:
Hoyeon Lee
2026-04-01 23:29:29 +09:00
committed by Andrii Nakryiko
parent 1cc96e0e20
commit f547cf7947
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
tools/lib/bpf/libbpf.c
View File

@@ -11862,7 +11862,7 @@ bpf_program__attach_kprobe_opts(const struct bpf_program *prog,
offset, -1 /* pid */);
}
if (pfd < 0) {
err = -errno;
err = pfd;
pr_warn("prog '%s': failed to create %s '%s+0x%zx' perf event: %s\n",
prog->name, retprobe ? "kretprobe" : "kprobe",
func_name, offset,
@@ -12852,7 +12852,7 @@ bpf_program__attach_uprobe_opts(const struct bpf_program *prog, pid_t pid,
binary_path, func_offset, pid);
}
if (pfd < 0) {
err = -errno;
err = pfd;
pr_warn("prog '%s': failed to create %s '%s:0x%zx' perf event: %s\n",
prog->name, retprobe ? "uretprobe" : "uprobe",
binary_path, func_offset,