feat(linux): statically link libpcap and add amd64 eBPF kprobe support - #14
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Release Linux binaries now build inside a musl/Alpine container with libpcap linked in statically (plus netgo for a pure-Go resolver), so released binaries carry no glibc symbol-versioning floor and no libpcap.so runtime dependency. This replaces pcapdrv_linux.go's dlopen-based loader, which existed only to make a missing runtime libpcap fail cleanly -- no longer needed once libpcap is statically linked. procinfo/bpf/kprobe gains a real amd64 vmlinux.h alongside the existing arm64 one, so the kprobe/kretprobe eBPF fallback (used when a kernel lacks BTF fentry/fexit support) now works on amd64 too, not just arm64.
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Release Linux binaries now build inside a musl/Alpine container with libpcap linked in statically (plus netgo for a pure-Go resolver), so released binaries carry no glibc symbol-versioning floor and no libpcap.so runtime dependency. This replaces pcapdrv_linux.go's dlopen-based loader, which existed only to make a missing runtime libpcap fail cleanly -- no longer needed once libpcap is statically linked.
procinfo/bpf/kprobe gains a real amd64 vmlinux.h alongside the existing arm64 one, so the kprobe/kretprobe eBPF fallback (used when a kernel lacks BTF fentry/fexit support) now works on amd64 too, not just arm64.