feat: Add support for custom instructions in eBPF program specification.

Signed-off-by: cfc4n <cfc4n.cs@gmail.com>
gojue · Feb 2, 2024 · 0acaa8c · 0acaa8c
1 parent 239558c
commit 0acaa8c
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diff --git a/examples/instruction_patching/Makefile b/examples/instruction_patching/Makefile
@@ -0,0 +1,27 @@
+all: build-ebpf build run
+
+build-ebpf:
+	mkdir -p ebpf/bin
+	clang -D__KERNEL__ -D__ASM_SYSREG_H \
+		-Wno-unused-value \
+		-Wno-pointer-sign \
+		-Wno-compare-distinct-pointer-types \
+		-Wunused \
+		-Wall \
+		-Werror \
+		-I/lib/modules/$$(uname -r)/build/include \
+		-I/lib/modules/$$(uname -r)/build/include/uapi \
+		-I/lib/modules/$$(uname -r)/build/include/generated/uapi \
+		-I/lib/modules/$$(uname -r)/build/arch/x86/include \
+		-I/lib/modules/$$(uname -r)/build/arch/x86/include/uapi \
+		-I/lib/modules/$$(uname -r)/build/arch/x86/include/generated \
+		-O2 -emit-llvm \
+		ebpf/main.c \
+		-c -o - | llc -march=bpf -filetype=obj -o ebpf/bin/probe.o
+	go run github.com/shuLhan/go-bindata/cmd/go-bindata -pkg main -prefix "ebpf/bin" -o "probe.go" "ebpf/bin/probe.o"
+
+build:
+	go build -o bin/main .
+
+run:
+	sudo bin/main
diff --git a/examples/instruction_patching/bin/.gitkeep b/examples/instruction_patching/bin/.gitkeep