Package: bpftool
Version: 5.14.12-1
Severity: minor
X-Debbugs-Cc: phil...@marek.priv.at
Using an absolute path, I get output:
[/sys/kernel/btf]$ bpftool btf dump file $PWD/fat | head -2
[85705] STRUCT 'fat_mount_options' size=48 vlen=27
'fs_uid' type_id=506 bits_offset=0
[/sys/kernel/btf]$ bpftool btf dump file $PWD/fat | wc
685 2274 25834
Using a relative path, "bpftool btf dump" doesn't work:
[/sys/kernel/btf]$ bpftool btf dump file ./fat
Error: failed to load BTF from ./fat: Invalid argument
"strace" shows that with a full path "bpftool" reads
"/sys/kernel/btf/vmlinux", but doesn't even try to find that in the
second case.
Dumping "vmlinux" works with a relative path,
I guess because it's self-contained.
Copying "fat" and "vmlinux" to /tmp/ and using a relative or absolute
path works for "vmlinux", but not "fat".
I think it would be great if a relative path would just be translated
to absolute when needed, or that required files would be searched via
some path list (configurable via environment, like $PATH or
$LD_LIBRARY_PATH etc.?).
Thanks a lot!
-- System Information:
Debian Release: bookworm/sid
APT prefers testing
APT policy: (990, 'testing'), (500, 'unstable-debug'), (500,
'testing-debug'), (500, 'unstable'), (500, 'stable'), (1,
'experimental')
Architecture: amd64 (x86_64)
Kernel: Linux 5.14.0-2-amd64 (SMP w/8 CPU threads)
Locale: LANG=de_AT.UTF-8, LC_CTYPE=de_AT.UTF-8 (charmap=UTF-8),
LANGUAGE=de_AT:de
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages bpftool depends on:
ii libc6 2.32-4
ii libcap2 1:2.44-1
ii libelf1 0.185-2
ii zlib1g 1:1.2.11.dfsg-2
bpftool recommends no packages.
bpftool suggests no packages.
-- no debconf information
