From f28dab3d42c6e4a33642b990f60f69abc2d89f07 Mon Sep 17 00:00:00 2001
From: Paul Buetow <paul@buetow.org>
Date: Thu, 12 Mar 2026 23:02:59 +0200
Subject: chore: pin libbpfgo v0.9.2-libbpf-1.5.1 workflow

---
 docs/libbpfgo-upgrade-plan.md | 113 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 113 insertions(+)
 create mode 100644 docs/libbpfgo-upgrade-plan.md

(limited to 'docs')

diff --git a/docs/libbpfgo-upgrade-plan.md b/docs/libbpfgo-upgrade-plan.md
new file mode 100644
index 0000000..1290479
--- /dev/null
+++ b/docs/libbpfgo-upgrade-plan.md
@@ -0,0 +1,113 @@
+# libbpfgo Upgrade Plan
+
+## Goal
+
+Upgrade `ior` from `github.com/aquasecurity/libbpfgo v0.6.0-libbpf-1.3.0...`
+to the latest tagged upstream release `v0.9.2-libbpf-1.5.1`, and align the
+repo's Go module, local static-link toolchain checkout, build instructions, and
+runtime validation on that same tag.
+
+## Current State
+
+- `go.mod` / `go.sum` are expected to pin
+  `github.com/aquasecurity/libbpfgo v0.9.2-libbpf-1.5.1`
+- `Magefile.go` defaults to the sibling checkout at `../libbpfgo` (local path:
+  `/home/paul/git/libbpfgo`) and should emit rebuild guidance if static
+  artifacts are missing
+- The local checkout is currently ahead of the latest tag:
+  `v0.9.2-libbpf-1.5.1-23-g9a319d2`
+- `README.md` / `AGENTS.md` should pin the tag, sync the `libbpf` submodule,
+  and document the static rebuild workflow explicitly
+
+## Upgrade Target
+
+- Upstream tag: `v0.9.2-libbpf-1.5.1`
+- Local checkout to use for static headers/archive:
+  `/home/paul/git/libbpfgo`
+- Repo-relative default checkout path used by `Magefile.go`: `../libbpfgo`
+- Override path for local experiments: `LIBBPFGO=/absolute/path/to/libbpfgo`
+- Do not target `libbpfgo` `main` as part of this upgrade unless a tagged
+  release blocker is found
+
+## Pinned Source of Truth
+
+- `go.mod` / `go.sum` should pin `github.com/aquasecurity/libbpfgo
+  v0.9.2-libbpf-1.5.1`
+- `README.md` and `AGENTS.md` should document the same checkout, tag, submodule,
+  and `make libbpfgo-static` workflow
+- `Magefile.go` should fail with explicit rebuild guidance when the local
+  `libbpfgo` checkout is missing the static artifacts that `ior` expects
+
+## Breaking-Change Watchpoints
+
+- `v0.8.0-libbpf-1.5` includes a `BPFProg` API alignment change
+- `v0.9.1-libbpf-1.5.1` changes `AttachUprobe` /
+  `AttachURetprobe` signatures
+- `libbpf` minimum version moves from `1.3.x` to `1.5.1`
+- Static builds require `git submodule update --init --recursive` in the local
+  `libbpfgo` checkout before `make libbpfgo-static`
+
+`ior` appears to use a narrow subset of APIs:
+
+- module loading (`NewModuleFromFile`, `NewModuleFromBuffer`, `BPFLoadObject`)
+- maps (`GetMap`, `SetMaxEntries`, `InitGlobalVariable`)
+- ringbuf (`InitRingBuf`)
+- program lookup and tracepoint attach (`GetProgram`, `AttachTracepoint`)
+
+The direct API-break risk is therefore expected to be low, but compile/runtime
+validation is still required.
+
+## Implementation Workstreams
+
+1. Align the version source of truth
+   - Pin `go.mod` / `go.sum` to `v0.9.2-libbpf-1.5.1`
+   - Align the local checkout instructions in `README.md`
+   - Align `AGENTS.md` and `Magefile.go` guidance with the same tag and rebuild flow
+   - Ensure the local checkout is reset to the exact tag and rebuilt
+
+2. Rebuild the local static toolchain
+   - In `/home/paul/git/libbpfgo`:
+     - `git checkout v0.9.2-libbpf-1.5.1`
+     - `git submodule update --init --recursive`
+     - `make libbpfgo-static`
+
+3. Compile and fix `ior`
+   - Rebuild `ior` against the upgraded wrapper and static `libbpf`
+   - Fix any compile/API regressions in:
+     - `internal/ior.go`
+     - `internal/bpfsetup.go`
+     - `internal/bpfembed.go`
+     - any `probemanager` adapter code if signatures changed
+
+4. Validate behavior
+   - Run `mage world`
+   - Run root-required integration coverage
+   - Specifically verify:
+     - embedded `ior.bpf.o` loading still works
+     - tracepoint attach/detach still works
+     - ring buffer event ingestion still works
+     - static build/link flags still work with the rebuilt local checkout
+
+5. Finalize docs and rollback guidance
+   - Document the exact `libbpfgo` tag and rebuild commands
+   - Mention the local checkout path used by `Magefile.go`
+   - Add troubleshooting notes for submodule sync / static rebuild failures
+
+## Validation Commands
+
+- `GOTOOLCHAIN=auto mage test`
+- `GOTOOLCHAIN=auto mage world`
+- `GOTOOLCHAIN=auto mage integrationTest`
+
+## References
+
+- Repo files:
+  - `go.mod`
+  - `README.md`
+  - `AGENTS.md`
+  - `Magefile.go`
+  - `internal/ior.go`
+  - `internal/bpfsetup.go`
+  - `internal/bpfembed.go`
+- Local toolchain checkout:
+  - `/home/paul/git/libbpfgo`
-- 
cgit v1.2.3