fix: remove vmlinux crate dep (#28)

* fix: remove vmlinux crate dep

* fix: download architecture-specific vmlinux.h at build time

Instead of using a git dependency (not allowed on crates.io), download the
architecture-specific vmlinux.h header at build time from the libbpf/vmlinux.h
repository. This approach:

- Removes git dependency from Cargo.toml (crates.io compatible)
- Downloads correct arch-specific header (x86, aarch64, arm)
- Caches downloaded headers in OUT_DIR (reuses between builds)
- Works with cargo install
- Supports cross-compilation for all architectures

The vmlinux.h file (~3-4MB per arch) is downloaded once per architecture
and cached, so subsequent builds are fast.

* fix: use ureq with rustls instead of http_req

http_req depends on native-tls/openssl-sys which requires OpenSSL to be
installed in the cross-compilation containers. Switch to ureq with the
rustls backend which has no system dependencies and works in all
cross-compilation environments.

* fix: follow symlink when downloading vmlinux.h

The vmlinux.h files in the libbpf/vmlinux.h repository are symlinks to
versioned files (e.g. vmlinux_6.14.h). When downloading via
raw.githubusercontent.com, we get the symlink content (just the target
filename) instead of the actual file.

Solution: Download the symlink first to get the target filename, then
download the actual versioned file. This ensures we get the full header
content instead of just the symlink text.

* add crate publish workflow
This commit is contained in:
Marco Cadetg
2025-10-02 08:49:20 +02:00
committed by GitHub
parent df38754959
commit e22c95fec1
6 changed files with 440 additions and 39 deletions
Generated
+335 -7
View File
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