feat(build,linux): Add Makefile script for build targets

.github/workflows/linux-port.yml

@@ -35,9 +35,8 @@ jobs:
           clang --version
       - name: Check generation drift
         run: |
-          chmod +x internal/ebpf/generate.sh
-          ./internal/ebpf/generate.sh
-          git diff --exit-code -- internal/ebpf
+          make -B ebpf
+          git diff --exit-code -- internal/ebpf/bpf
       - name: Unit tests
         run: go test ./internal/ebpf ./internal/bootstrap ./pkg/event ./pkg/ps ./pkg/api ./pkg/util/signals
       - name: Privileged process source

.gitignore

@@ -1,5 +1,6 @@
 cmd/fibratus/fibratus.exe
 cmd/fibratus/fibratus.syso
+cmd/fibratus/fibratus
 
 cmd/systray/fibratus-systray.exe
 cmd/systray/fibratus-systray.syso

Makefile

@@ -0,0 +1,69 @@
+.DEFAULT_GOAL := build
+
+SHELL := /bin/bash
+.SHELLFLAGS := -euo pipefail -c
+
+BPF2GO_VERSION := v0.20.0
+
+# Specifies a list of build flags
+TAGS ?=
+
+BPF_DIR := internal/ebpf
+BPF_OUT := $(BPF_DIR)/bpf
+
+CLANG ?= clang
+GO ?= go
+GOFMT ?= gofmt
+BPF2GO ?= go run github.com/cilium/ebpf/cmd/bpf2go@$(BPF2GO_VERSION)
+
+BPF_FLAGS := \
+	-go-package bpf \
+	-output-dir $(BPF_OUT) \
+	-cc $(CLANG) \
+	-target bpfel,bpfeb \
+	-tags linux
+
+# Production headers first; spike/c is only the vmlinux.h fallback.
+BPF_CFLAGS := \
+	-I./$(BPF_DIR)/c \
+	-I./$(BPF_DIR)/c/common \
+	-I./$(BPF_DIR)/spike/c \
+	-O2 \
+	-g \
+	-D__TARGET_ARCH_x86
+
+# Find all eBPF sources.
+BPF_SOURCES := $(wildcard $(BPF_DIR)/c/*.bpf.c)
+BPF_NAMES := $(patsubst $(BPF_DIR)/c/%.bpf.c,%,$(BPF_SOURCES))
+BPF_TARGETS := $(foreach name,$(BPF_NAMES), \
+	$(BPF_OUT)/$(name)_bpfel.go \
+	$(BPF_OUT)/$(name)_bpfeb.go)
+
+titlecase = $(shell printf '%s' '$(1)' | awk '{print toupper(substr($$0,1,1)) substr($$0,2)}')
+
+.PHONY: ebpf
+ebpf: $(BPF_TARGETS)
+$(BPF_OUT)/%_bpfel.go $(BPF_OUT)/%_bpfeb.go &: $(BPF_DIR)/c/%.bpf.c
+	$(BPF2GO) $(BPF_FLAGS) -output-stem $* $(call titlecase,$*) $(BPF_DIR)/c/$*.bpf.c -- $(BPF_CFLAGS)
+
+ifeq ($(strip $(TAGS)),)
+BUILD_TAGS :=
+else
+BUILD_TAGS := -tags $(TAGS)
+endif
+
+.PHONY: build
+build:
+	$(GO) build $(BUILD_TAGS) -o ./cmd/fibratus/fibratus ./cmd/fibratus/
+
+.PHONY: fmt
+fmt:
+	$(GOFMT) -e -s -l -w pkg cmd internal
+
+.PHONY: test
+test:
+	$(GO) test ./internal/ebpf ./internal/bootstrap ./pkg/event ./pkg/ps ./pkg/api ./pkg/util/signals ./pkg/filter ./pkg/rules
+
+.PHONY: clean
+clean:
+	rm -f cmd/fibratus/fibratus