Unresolved symbols in profile co-re version

Hello,

Why does the profile utility from the libbpf-tool return less detailed stack traces compared to the old version?

- libbpf-tool (10 samples):

```sh
$ /opt/bcc/bin/profile -F49 -d --stack-storage-size=$((1024*1024)) -f -p 1087382 10

Could not open /usr/lib/x86_64-linux-gnu/libc.so.6 (deleted)
Could not open /usr/lib/x86_64-linux-gnu/libpthread.so.0 (deleted)
Could not open /usr/lib/x86_64-linux-gnu/libresolv.so.2 (deleted)
Could not open /usr/lib/x86_64-linux-gnu/ld-linux-x86-64.so.2 (deleted)
Sampling at 49 Hertz of PID [1087382] by user + kernel for 10 secs.
[unknown]
[unknown]
[unknown]
[unknown]
[unknown]
[unknown]
- kubelet (1087382)
2

[unknown]
[unknown]
[unknown]
[unknown]
[unknown]
- kubelet (1087382)
...
```

- python (154 samples):

```
$ python3 /opt/bcc/share/bcc/tools/profile -F49 -d --stack-storage-size=$((1024*1024)) -fa -p 1087382 10

Sampling at 49 Hertz of PID [1087382] by user + kernel stack for 10 secs.

__switch_to+0x165 [kernel]
__switch_to+0x165 [kernel]
__schedule+0x2b7 [kernel]
schedule+0x68 [kernel]
futex_wait_queue+0x66 [kernel]
futex_wait+0x151 [kernel]
do_futex+0x178 [kernel]
__x64_sys_futex+0x78 [kernel]
do_syscall_64+0x59 [kernel]
entry_SYSCALL_64_after_hwframe+0x73 [kernel]
--
[unknown] [kubelet]
[unknown] [kubelet]
[unknown] [kubelet]
[unknown] [kubelet]
[unknown] [kubelet]
[unknown] [kubelet]
[unknown] [kubelet]
[unknown] [kubelet]
[unknown] [kubelet]
[unknown] [kubelet]
[unknown] [kubelet]
[unknown] [kubelet]
[unknown] [kubelet]
[unknown] [kubelet]
- kubelet (1087382)
1
...
```

Why so huge difference between python based profile and libbpf based versions?

OS: Ubuntu Jammy 22.04
Linux: 6.2.0

Start with the libbpf-tool profile utility and compare its output with the Python profile command shown in the issue on Ubuntu 22.04 and Linux 6.2. Investigate why user and kernel stack symbols become unknown, and consider the issue resolved when the libbpf-based profile provides a comparable, symbolized stack trace or documents the limitation.

Written by the indexing model from the issue text.