chore(pkg/bpf): Replace libbpfgo with cilium/ebpf

cilium/ebpf is a pure Go eBPF package and is used in a number of popular
cloud-native projects. The benefits to Kepler are:

1. Bytecode is built using bpf2go and the C and Go structs are kept in
   sync automatically
2. There is no requirement for Cgo anymore and therefore no requirement
   to have libbpf or libelf installed to compile and/or to be
   dynamically linked at runtime
3. Simplified packaging as the correct bytecode is contained within the
   kepler binary

Overall I'm happy with this change, but there is only one thing that
bugs me.

We have to check in the bytecode object files (e.g kepler.bpfel.o) or
the Go tooling (go lint/go vet) complains about the missing files.
I couldn't reliably get `go generate ./...` to work to compile these
files in CI. This is something which should be relatively easy to fix
in the Makefile/CI environment before we cut a release.

Signed-off-by: Dave Tucker <dave@dtucker.co.uk>

.github/workflows/c.yml

@@ -14,14 +14,4 @@ jobs:
       - uses: jidicula/clang-format-action@v4.11.0
         with:
           clang-format-version: "17"
-          check-path: "bpfassets/libbpf/src"
-
-  build:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4.1.1
-      - name: Install libbpf
-        run: |
-          sudo apt-get update && sudo apt-get install -y libelf-dev libbpf-dev
-      - name: Build
-        run: make -C bpfassets/libbpf
+          check-path: "pkg/bpf/src"

.github/workflows/integration_test.yml

@@ -47,7 +47,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        cluster_provider: [kind,microshift]
+        cluster_provider: [kind, microshift]
     steps:
       - name: checkout source
         uses: actions/checkout@v4.1.1

.github/workflows/unit_test.yml

@@ -22,6 +22,7 @@ jobs:
       - uses: actions/setup-go@v5
         with:
           go-version-file: go.mod
+      - run: sudo apt-get install clang llvm
       - name: Get ginkgo
         run: make ginkgo-set
         env:
@@ -32,21 +33,8 @@ jobs:
           sudo apt-get install -y cpuid clang
           cd doc/ && sudo ./dev/prepare_dev_env.sh && cd - 
           git config --global --add safe.directory /kepler
-      - name: install libbpf
-        uses: sustainable-computing-io/kepler-action@v0.0.6
-        with:
-          ebpfprovider: libbpf
       - name: Run
         run: |
-          sudo apt remove libbpf-dev
-          mkdir temp-libbpf
-          cd temp-libbpf
-          git clone https://github.com/libbpf/libbpf
-          cd libbpf/src
-          sudo make install_headers
-          sudo make install_uapi_headers
-          sudo prefix=/usr  BUILD_STATIC_ONLY=y make install
-          cd ../../../
           make VERBOSE=1 test
           go tool cover -func=coverage.out -o=coverage.out
       - name: Go Coverage Badge # Pass the `coverage.out` output to this action

.gitignore

@@ -41,8 +41,5 @@ local-dev-cluster
 /tmp
 .env
 
-# object files
-*.o
-
 # test coverage
 coverage.out

Makefile

@@ -68,9 +68,6 @@ GOOS := $(shell go env GOOS)
 GOARCH := $(shell go env GOARCH)
 GOENV := GOOS=$(GOOS) GOARCH=$(GOARCH)
 
-LIBBPF_HEADERS := /usr/include/bpf
-GOENV = GO111MODULE="" GOOS=$(GOOS) GOARCH=$(GOARCH) CGO_ENABLED=1 CC=clang CGO_CFLAGS="-I $(LIBBPF_HEADERS) -I/usr/include/" CGO_LDFLAGS="-lelf -lz -lbpf"
-
 DOCKERFILE := $(SRC_ROOT)/build/Dockerfile
 IMAGE_BUILD_TAG := $(GIT_VERSION)-linux-$(GOARCH)
 GO_BUILD_TAGS := $(GENERAL_TAGS)$(GOOS)$(GPU_TAGS)
@@ -172,10 +169,11 @@ clean-cross-build:
 build: clean_build_local _build_local copy_build_local ##  Build binary and copy to $(OUTPUT_DIR)/bin
 .PHONY: build
 
-_build_ebpf_local:
-	@make -C bpfassets/libbpf
+.PHONY: generate
+generate: ## Generate BPF code locally.
+	+@$(GOENV) go generate ./pkg/bpf
 
-_build_local: _build_ebpf_local ##  Build Kepler binary locally.
+_build_local: generate ##  Build Kepler binary locally.
 	@echo TAGS=$(GO_BUILD_TAGS)
 	@mkdir -p "$(CROSS_BUILD_BINDIR)/$(GOOS)_$(GOARCH)"
 	+@$(GOENV) go build \
@@ -280,7 +278,7 @@ SUDO_TEST_PKGS := $(shell go list ./... | grep pkg/bpf)
 test: unit-test bpf-test bench ## Run all tests.
 
 .PHONY: unit-test
-unit-test: ginkgo-set tidy-vendor ## Run unit tests.
+unit-test: generate ginkgo-set tidy-vendor ## Run unit tests.
 	@echo TAGS=$(GO_TEST_TAGS)
 	$(if $(VERBOSE),@echo GOENV=$(GOENV))
 	@$(GOENV) go test -tags $(GO_TEST_TAGS) \
@@ -298,7 +296,7 @@ bench: ## Run benchmarks.
 		-bench=. --count=1 $(TEST_PKGS)
 
 .PHONY: bpf-test
-bpf-test: _build_ebpf_local ## Run BPF tests.
+bpf-test: generate ## Run BPF tests.
 	for pkg in $(SUDO_TEST_PKGS); do \
 		$(GOENV) go test -c $$pkg -tags $(GO_TEST_TAGS) -cover \
 		-covermode=atomic -coverprofile=coverage.bpf.out \
@@ -325,7 +323,7 @@ format:
 
 c-format:
 	@echo "Checking c format"
-	@git ls-files -- '*.c' '*.h' ':!:vendor' ':!:bpfassets/libbpf/include/' | xargs clang-format --dry-run --Werror
+	@git ls-files -- '*.c' '*.h' ':!:vendor' ':!:pkg/bpf/include/' | xargs clang-format --dry-run --Werror
 
 golint:
 	@mkdir -p $(base_dir)/.cache/golangci-lint

build/Dockerfile

@@ -56,9 +56,7 @@ COPY --from=builder /libbpf-source/linux-5.14.0-424.el9/tools/bpf/bpftool/bpftoo
 COPY --from=builder /libbpf-source/linux-5.14.0-424.el9/tools/bpf/bpftool/bpftool /usr/bin/bpftool
 
 RUN mkdir -p /var/lib/kepler/data
-RUN mkdir -p /var/lib/kepler/bpfassets
 COPY --from=builder /workspace/data/cpus.yaml /var/lib/kepler/data/cpus.yaml
-COPY --from=builder /workspace/bpfassets/libbpf/bpf.o /var/lib/kepler/bpfassets
 
 # copy model weight
 COPY --from=builder /workspace/data/model_weight/acpi_AbsPowerModel.json /var/lib/kepler/data/acpi_AbsPowerModel.json

go.mod

@@ -1,12 +1,14 @@
 module github.com/sustainable-computing-io/kepler
 
-go 1.21
+go 1.21.0
+
+toolchain go1.21.9
 
 require (
 	github.com/HabanaAI/gohlml v1.15.0
 	github.com/NVIDIA/go-dcgm v0.0.0-20240118201113-3385e277e49f
 	github.com/NVIDIA/go-nvml v0.12.0-1
-	github.com/aquasecurity/libbpfgo v0.6.0-libbpf-1.3
+	github.com/cilium/ebpf v0.15.0
 	github.com/containerd/cgroups v1.1.0
 	github.com/containerd/cgroups/v3 v3.0.2
 	github.com/jaypipes/ghw v0.12.0
@@ -15,12 +17,12 @@ require (
 	github.com/klauspost/cpuid/v2 v2.2.6
 	github.com/onsi/ginkgo/v2 v2.15.0
 	github.com/onsi/gomega v1.31.1
-	github.com/opencontainers/runc v1.1.12
-	github.com/opencontainers/runtime-spec v1.1.0
+	github.com/opencontainers/runc v1.2.0-rc.1
+	github.com/opencontainers/runtime-spec v1.2.0
 	github.com/prometheus/client_golang v1.19.0
 	github.com/prometheus/common v0.48.0
 	github.com/prometheus/prometheus v0.48.1
-	github.com/sirupsen/logrus v1.9.0
+	github.com/sirupsen/logrus v1.9.3
 	golang.org/x/sys v0.20.0
 	gopkg.in/yaml.v3 v3.0.1
 	k8s.io/api v0.28.2
@@ -35,7 +37,6 @@ require (
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/bits-and-blooms/bitset v1.13.0 // indirect
 	github.com/cespare/xxhash/v2 v2.2.0 // indirect
-	github.com/cilium/ebpf v0.9.1 // indirect
 	github.com/coreos/go-systemd/v22 v22.5.0 // indirect
 	github.com/cyphar/filepath-securejoin v0.2.4 // indirect
 	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
@@ -48,7 +49,7 @@ require (
 	github.com/go-openapi/jsonreference v0.20.2 // indirect
 	github.com/go-openapi/swag v0.22.4 // indirect
 	github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 // indirect
-	github.com/godbus/dbus/v5 v5.0.6 // indirect
+	github.com/godbus/dbus/v5 v5.1.0 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/golang/protobuf v1.5.3 // indirect
 	github.com/google/gnostic-models v0.6.8 // indirect
@@ -64,7 +65,7 @@ require (
 	github.com/mailru/easyjson v0.7.7 // indirect
 	github.com/mitchellh/go-homedir v1.1.0 // indirect
 	github.com/moby/spdystream v0.2.0 // indirect
-	github.com/moby/sys/mountinfo v0.5.0 // indirect
+	github.com/moby/sys/mountinfo v0.7.1 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect

go.sum

@@ -8,8 +8,6 @@ github.com/NVIDIA/go-nvml v0.12.0-1 h1:6mdjtlFo+17dWL7VFPfuRMtf0061TF4DKls9pkSw6
 github.com/NVIDIA/go-nvml v0.12.0-1/go.mod h1:hy7HYeQy335x6nEss0Ne3PYqleRa6Ct+VKD9RQ4nyFs=
 github.com/StackExchange/wmi v1.2.1 h1:VIkavFPXSjcnS+O8yTq7NI32k0R5Aj+v39y29VYDOSA=
 github.com/StackExchange/wmi v1.2.1/go.mod h1:rcmrprowKIVzvc+NUiLncP2uuArMWLCbu9SBzvHz7e8=
-github.com/aquasecurity/libbpfgo v0.6.0-libbpf-1.3 h1:mhDe1mAZR80LjnsCnteS+R2/EeBFi9qFjKslsIJwVSo=
-github.com/aquasecurity/libbpfgo v0.6.0-libbpf-1.3/go.mod h1:0rEApF1YBHGuZ4C8OYI9q5oDBVpgqtRqYATePl9mCDk=
 github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5 h1:0CwZNZbxp69SHPdPJAN/hZIm0C4OItdklCFmMRWYpio=
 github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5/go.mod h1:wHh0iHkYZB8zMSxRWpUBQtwG5a7fFgvEO+odwuTv2gs=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
@@ -18,8 +16,8 @@ github.com/bits-and-blooms/bitset v1.13.0 h1:bAQ9OPNFYbGHV6Nez0tmNI0RiEu7/hxlYJR
 github.com/bits-and-blooms/bitset v1.13.0/go.mod h1:7hO7Gc7Pp1vODcmWvKMRA9BNmbv6a/7QIWpPxHddWR8=
 github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=
 github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
-github.com/cilium/ebpf v0.9.1 h1:64sn2K3UKw8NbP/blsixRpF3nXuyhz/VjRlRzvlBRu4=
-github.com/cilium/ebpf v0.9.1/go.mod h1:+OhNOIXx/Fnu1IE8bJz2dzOA+VSfyTfdNUVdlQnxUFY=
+github.com/cilium/ebpf v0.15.0 h1:7NxJhNiBT3NG8pZJ3c+yfrVdHY8ScgKD27sScgjLMMk=
+github.com/cilium/ebpf v0.15.0/go.mod h1:DHp1WyrLeiBh19Cf/tfiSMhqheEiK8fXFZ4No0P1Hso=
 github.com/containerd/cgroups v1.1.0 h1:v8rEWFl6EoqHB+swVNjVoCJE8o3jX7e8nqBGPLaDFBM=
 github.com/containerd/cgroups v1.1.0/go.mod h1:6ppBcbh/NOOUU+dMKrykgaBnK9lCIBxHqJDGwsa1mIw=
 github.com/containerd/cgroups/v3 v3.0.2 h1:f5WFqIVSgo5IZmtTT3qVBo6TzI1ON6sycSBKkymb9L0=
@@ -37,8 +35,6 @@ github.com/docker/go-units v0.5.0 h1:69rxXcBk27SvSaaxTtLh/8llcHD8vYHT7WSdRZ/jvr4
 github.com/docker/go-units v0.5.0/go.mod h1:fgPhTUdO+D/Jk86RDLlptpiXQzgHJF7gydDDbaIK4Dk=
 github.com/emicklei/go-restful/v3 v3.10.2 h1:hIovbnmBTLjHXkqEBUz3HGpXZdM7ZrE9fJIZIqlJLqE=
 github.com/emicklei/go-restful/v3 v3.10.2/go.mod h1:6n3XBCmQQb25CM2LCACGz8ukIrRry+4bhvbpWn3mrbc=
-github.com/frankban/quicktest v1.14.0 h1:+cqqvzZV87b4adx/5ayVOaYZ2CrvM4ejQvUdBzPPUss=
-github.com/frankban/quicktest v1.14.0/go.mod h1:NeW+ay9A/U67EYXNFA1nPE8e/tnQv/09mUdL/ijj8og=
 github.com/ghodss/yaml v1.0.0 h1:wQHKEahhL6wmXdzwWG11gIVCkOv05bNOh+Rxn0yngAk=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
 github.com/go-logr/logr v1.4.1 h1:pKouT5E8xu9zeFC39JXRDukb6JFQPXM5p5I91188VAQ=
@@ -54,11 +50,13 @@ github.com/go-openapi/jsonreference v0.20.2/go.mod h1:Bl1zwGIM8/wsvqjsOQLJ/SH+En
 github.com/go-openapi/swag v0.22.3/go.mod h1:UzaqsxGiab7freDnrUUra0MwWfN/q7tE4j+VcZ0yl14=
 github.com/go-openapi/swag v0.22.4 h1:QLMzNJnMGPRNDCbySlcj1x01tzU8/9LTTL9hZZZogBU=
 github.com/go-openapi/swag v0.22.4/go.mod h1:UzaqsxGiab7freDnrUUra0MwWfN/q7tE4j+VcZ0yl14=
+github.com/go-quicktest/qt v1.101.0 h1:O1K29Txy5P2OK0dGo59b7b0LR6wKfIhttaAhHUyn7eI=
+github.com/go-quicktest/qt v1.101.0/go.mod h1:14Bz/f7NwaXPtdYEgzsx46kqSxVwTbzVZsDC26tQJow=
 github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 h1:tfuBGBXKqDEevZMzYi5KSi8KkcZtzBcTgAUUtapy0OI=
 github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572/go.mod h1:9Pwr4B2jHnOSGXyyzV8ROjYa2ojvAY6HCGYYfMoC3Ls=
 github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
-github.com/godbus/dbus/v5 v5.0.6 h1:mkgN1ofwASrYnJ5W6U/BxG15eXXXjirgZc7CLqkcaro=
-github.com/godbus/dbus/v5 v5.0.6/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
+github.com/godbus/dbus/v5 v5.1.0 h1:4KLkAxT3aOY8Li4FRJe/KvhoNFFxo0m6fNuFUO8QJUk=
+github.com/godbus/dbus/v5 v5.1.0/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
 github.com/gogo/protobuf v1.3.2 h1:Ov1cvc58UF3b5XjBnZv7+opcTcQFZebYjWzi34vdm4Q=
 github.com/gogo/protobuf v1.3.2/go.mod h1:P1XiOD3dCwIKUDQYPy72D8LYyHL2YPYrpS2s69NZV8Q=
 github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
@@ -115,8 +113,8 @@ github.com/mitchellh/go-homedir v1.1.0 h1:lukF9ziXFxDFPkA1vsr5zpc1XuPDn/wFntq5mG
 github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
 github.com/moby/spdystream v0.2.0 h1:cjW1zVyyoiM0T7b6UoySUFqzXMoqRckQtXwGPiBhOM8=
 github.com/moby/spdystream v0.2.0/go.mod h1:f7i0iNDQJ059oMTcWxx8MA/zKFIuD/lY+0GqbN2Wy8c=
-github.com/moby/sys/mountinfo v0.5.0 h1:2Ks8/r6lopsxWi9m58nlwjaeSzUX9iiL1vj5qB/9ObI=
-github.com/moby/sys/mountinfo v0.5.0/go.mod h1:3bMD3Rg+zkqx8MRYPi7Pyb0Ie97QEBmdxbhnCLlSvSU=
+github.com/moby/sys/mountinfo v0.7.1 h1:/tTvQaSJRr2FshkhXiIpux6fQ2Zvc4j7tAhMTStAG2g=
+github.com/moby/sys/mountinfo v0.7.1/go.mod h1:IJb6JQeOklcdMU9F5xQ8ZALD+CUr5VlGpwtX+VE0rpI=
 github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd h1:TRLaZ9cD/w8PVh93nsPXa1VrQ6jlwL5oN8l14QlcNfg=
 github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
@@ -130,10 +128,10 @@ github.com/onsi/ginkgo/v2 v2.15.0 h1:79HwNRBAZHOEwrczrgSOPy+eFTTlIGELKy5as+ClttY
 github.com/onsi/ginkgo/v2 v2.15.0/go.mod h1:HlxMHtYF57y6Dpf+mc5529KKmSq9h2FpCF+/ZkwUxKM=
 github.com/onsi/gomega v1.31.1 h1:KYppCUK+bUgAZwHOu7EXVBKyQA6ILvOESHkn/tgoqvo=
 github.com/onsi/gomega v1.31.1/go.mod h1:y40C95dwAD1Nz36SsEnxvfFe8FFfNxzI5eJ0EYGyAy0=
-github.com/opencontainers/runc v1.1.12 h1:BOIssBaW1La0/qbNZHXOOa71dZfZEQOzW7dqQf3phss=
-github.com/opencontainers/runc v1.1.12/go.mod h1:S+lQwSfncpBha7XTy/5lBwWgm5+y5Ma/O44Ekby9FK8=
-github.com/opencontainers/runtime-spec v1.1.0 h1:HHUyrt9mwHUjtasSbXSMvs4cyFxh+Bll4AjJ9odEGpg=
-github.com/opencontainers/runtime-spec v1.1.0/go.mod h1:jwyrGlmzljRJv/Fgzds9SsS/C5hL+LL3ko9hs6T5lQ0=
+github.com/opencontainers/runc v1.2.0-rc.1 h1:SMjop2pxxYRTfKdsigna/8xRoaoCfIQfD2cVuOb64/o=
+github.com/opencontainers/runc v1.2.0-rc.1/go.mod h1:m9JwxfHzXz5YTTXBQr7EY9KTuazFAGPyMQx2nRR3vTw=
+github.com/opencontainers/runtime-spec v1.2.0 h1:z97+pHb3uELt/yiAWD691HNHQIF07bE7dzrbT927iTk=
+github.com/opencontainers/runtime-spec v1.2.0/go.mod h1:jwyrGlmzljRJv/Fgzds9SsS/C5hL+LL3ko9hs6T5lQ0=
 github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
 github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
@@ -149,12 +147,10 @@ github.com/prometheus/procfs v0.12.0 h1:jluTpSng7V9hY0O2R9DzzJHYb2xULk9VTR1V1R/k
 github.com/prometheus/procfs v0.12.0/go.mod h1:pcuDEFsWDnvcgNzo4EEweacyhjeA9Zk3cnaOZAZEfOo=
 github.com/prometheus/prometheus v0.48.1 h1:CTszphSNTXkuCG6O0IfpKdHcJkvvnAAE1GbELKS+NFk=
 github.com/prometheus/prometheus v0.48.1/go.mod h1:SRw624aMAxTfryAcP8rOjg4S/sHHaetx2lyJJ2nM83g=
-github.com/rogpeppe/go-internal v1.10.0 h1:TMyTOH3F/DB16zRVcYyreMH6GnZZrwQVAoYjRBZyWFQ=
-github.com/rogpeppe/go-internal v1.10.0/go.mod h1:UQnix2H7Ngw/k4C5ijL5+65zddjncjaFoBhdsK/akog=
-github.com/seccomp/libseccomp-golang v0.9.2-0.20220502022130-f33da4d89646 h1:RpforrEYXWkmGwJHIGnLZ3tTWStkjVVstwzNGqxX2Ds=
-github.com/seccomp/libseccomp-golang v0.9.2-0.20220502022130-f33da4d89646/go.mod h1:JA8cRccbGaA1s33RQf7Y1+q9gHmZX1yB/z9WDN1C6fg=
-github.com/sirupsen/logrus v1.9.0 h1:trlNQbNUG3OdDrDil03MCb1H2o9nJ1x4/5LYw7byDE0=
-github.com/sirupsen/logrus v1.9.0/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ=
+github.com/rogpeppe/go-internal v1.11.0 h1:cWPaGQEPrBb5/AsnsZesgZZ9yb1OQ+GOISoDNXVBh4M=
+github.com/rogpeppe/go-internal v1.11.0/go.mod h1:ddIwULY96R17DhadqLgMfk9H9tvdUzkipdSkR5nkCZA=
+github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ=
+github.com/sirupsen/logrus v1.9.3/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ=
 github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
 github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
@@ -193,7 +189,7 @@ golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5h
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190916202348-b4ddaad3f8a3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20211025201205-69cdffdb9359/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.20.0 h1:Od9JTbYCk261bKm4M/mw7AklTlFYIa0bIp9BgSm1S8Y=

hack/libbpf-headers.sh

@@ -15,4 +15,4 @@ headers=(
 
 # Fetch libbpf release and extract the desired headers
 curl -sL "https://github.com/libbpf/libbpf/archive/refs/tags/v${LIBBPF_VERSION}.tar.gz" | \
-    tar -C ./bpfassets/libbpf/include/bpf -xz --xform='s#.*/##' "${headers[@]}"
+    tar -C ./pkg/bpf/include/bpf -xz --xform='s#.*/##' "${headers[@]}"

packaging/rpm/kepler.spec

@@ -54,13 +54,10 @@ install -d %{buildroot}%{_bindir}
 install -d %{buildroot}%{_sysconfdir}/kepler/
 
 install -d %{buildroot}/var/lib/kepler/data
-install -d %{buildroot}/var/lib/kepler/bpfassets
 install -d %{buildroot}/etc/kepler/kepler.config
 
 install -p -m755 ./_output/kepler  %{buildroot}%{_bindir}/kepler
 install -p -m644 ./packaging/rpm/kepler.service %{buildroot}%{_unitdir}/kepler.service
-install -p -m644 ./bpfassets/libbpf/bpf.o/kepler.bpfel.o %{buildroot}/var/lib/kepler/bpfassets/kepler.bpfel.o
-install -p -m644 ./bpfassets/libbpf/bpf.o/kepler.bpfeb.o %{buildroot}/var/lib/kepler/bpfassets/kepler.bpfeb.o
 install -p -m644 ./_output/ENABLE_PROCESS_METRICS %{buildroot}/etc/kepler/kepler.config/ENABLE_PROCESS_METRICS
 install -p -m644 ./data/cpus.yaml %{buildroot}/var/lib/kepler/data/cpus.yaml
 install -p -m644 ./data/model_weight/acpi_AbsPowerModel.json %{buildroot}/var/lib/kepler/data/acpi_AbsPowerModel.json
@@ -76,8 +73,6 @@ install -p -m644 ./data/model_weight/intel_rapl_DynPowerModel.json %{buildroot}/
 %license LICENSE
 %{_bindir}/kepler
 %{_unitdir}/kepler.service
-/var/lib/kepler/bpfassets/kepler.bpfel.o
-/var/lib/kepler/bpfassets/kepler.bpfeb.o
 /var/lib/kepler/data/cpus.yaml
 /var/lib/kepler/data/acpi_AbsPowerModel.json
 /var/lib/kepler/data/acpi_DynPowerModel.json

pkg/bpf/bpf_suite_test.go

@@ -13,18 +13,19 @@ import (
 
 func TestBpf(t *testing.T) {
 	RegisterFailHandler(Fail)
-	RunSpecs(t, "Attacher Suite")
+	RunSpecs(t, "Bpf Suite")
 }
 
-func checkDataCollected(processesData []ProcessBPFMetrics) {
-	// len > 0
+func checkDataCollected(processesData []ProcessMetrics) {
 	Expect(len(processesData)).To(BeNumerically(">", 0))
-	Expect(processesData[0].PID).To(BeNumerically(">=", uint64(0)))
-	Expect(processesData[0].Command).NotTo(BeEmpty())
-	Expect(processesData[0].CPUCycles).To(BeNumerically(">=", uint64(0)))
-	Expect(processesData[0].CPUInstr).To(BeNumerically(">=", uint64(0)))
-	Expect(processesData[0].CacheMisses).To(BeNumerically(">=", uint64(0)))
-	Expect(processesData[0].CGroupID).To(BeNumerically(">", uint64(0)))
+	for _, p := range processesData {
+		Expect(p.Pid).To(BeNumerically(">=", 0))
+		Expect(p.Comm).NotTo(BeEmpty())
+		Expect(p.CpuCycles).To(BeNumerically(">=", uint64(0)))
+		Expect(p.CpuInstr).To(BeNumerically(">=", uint64(0)))
+		Expect(p.CacheMiss).To(BeNumerically(">=", uint64(0)))
+		Expect(p.CgroupId).To(BeNumerically(">=", uint64(0)))
+	}
 }
 
 var _ = Describe("BPF Exporter test", func() {