Vincent Li ed5cefb037 loongarch64: backport kernel BPF trampoline
Enable xdp-loader to attach multiple XDP programs to a single interface by
backporting the BPF trampoline implementation from Linux kernel 6.17 to
6.12 for LoongArch64.

The xdp-loader utility relies on libxdp, which in turn requires kernel
support for BPF trampoline. While x86_64 and other architectures have
this feature, LoongArch64 only gained it in kernel 6.17. Without this
backport, xdp-loader fails on LoongArch64 systems running kernel 6.12.

Changes backported include:
- BPF trampoline infrastructure for LoongArch64
- Necessary JIT compiler updates
- Related BPF subsystem changes

This allows full compatibility with the xdp-tools ecosystem on LoongArch64
systems running older kernel versions.

Reference: https://github.com/xdp-project/xdp-tools/tree/main/lib/libxdp

Signed-off-by: Vincent Li <vincent.mc.li@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/21077
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2025-12-08 18:52:19 +01:00
2024-05-17 22:03:06 +03:00
2021-02-05 14:54:47 +01:00

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OpenWrt Project is a Linux operating system targeting embedded devices. Instead of trying to create a single, static firmware, OpenWrt provides a fully writable filesystem with package management. This frees you from the application selection and configuration provided by the vendor and allows you to customize the device through the use of packages to suit any application. For developers, OpenWrt is the framework to build an application without having to build a complete firmware around it; for users this means the ability for full customization, to use the device in ways never envisioned.

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An advanced user may require additional or specific package. (Toolchain, SDK, ...) For everything else than simple firmware download, try the wiki download page:

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  3. Run make menuconfig to select your preferred configuration for the toolchain, target system & firmware packages.

  4. Run make to build your firmware. This will download all sources, build the cross-compile toolchain and then cross-compile the GNU/Linux kernel & all chosen applications for your target system.

The main repository uses multiple sub-repositories to manage packages of different categories. All packages are installed via the OpenWrt package manager called opkg. If you're looking to develop the web interface or port packages to OpenWrt, please find the fitting repository below.

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