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Hi all, I'm taking a stab at the new CO-RE API. If these are successfully compiled, they should be able to run on kernels without BTF support? Is that correct?
Regardless, here's the issue. Runnin…
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I tried `__builtin_memcmp`, it compiles, but libbpf complains:
```
libbpf: failed to find BTF for extern 'memcmp': -2
Error: failed to open BPF object file: No such file or directory
```
Thou…
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BPF Type Format (BTF) is the debuginfo for eBPF, and is used by libbpf to ensure that accesses to in-kernel structures are correct and safe to execute, and to perform relocations and rewrites as neces…
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I'm trying to cross-compile some of the programs built on top of libbpf-bootstrap, but I'm lacking expertise with C/C++ ecosystem. I see that support for cross-compilation was added in https://github.…
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按照文档编译运行了一下 报错了 有个Permission denied 但是我是root环境下跑的
raven:/data/local/tmp # ./myringbuffer
libbpf: prog 'update_rq_clock': BPF program load failed: Permission denied
libbpf: prog 'update_rq_clock': -…
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We have the file `selftests/.libbpf-versions.txt` which should allow us to run each selftest against each version of libbpf which would be checked out in the git submodule. This doesn't appear to be t…
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I fixed `trace_helper` symbol search bug and it is merged yesterday(https://github.com/iovisor/bcc/pull/4158). So `libbpf-tools` based tool may suffer to printing `null` on there backtrace, if the bac…
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I'm getting the following error with uprobe + llvm jit:
```
[2024-01-28 01:12:03][info][707874] Created uprobe/uretprobe perf event handler, module name /500g-a/git/ebpf-plus/libbpf/uprobes/a.out,…
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I'm new here, and I'm using a Raspberry Pi 4B with the Raspberry Pi Buster OS (armhf). While I understand it is an outdated system, due to personal requirements, I'm still using it but have upgraded t…
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The [XDP Tutorial](https://github.com/xdp-project/xdp-tutorial/blob/master/setup_dependencies.org#packages-on-fedora) lists how to use XDP outside of needing too many `*-devel` packages. But in genera…