oxidebpf 0.2.7

A pure-Rust library for managing eBPF programs.
Documentation 
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ARCH ?= x86_64
CC ?= clang-6.0
LLC ?= llc-6.0
OPT ?= opt-6.0
LLVM_DIS ?= llvm-dis-6.0

SOURCES ?= test_program.c

CFLAGS += \
	-D__KERNEL__ \
	-D__BPF_TRACING__ \
	-Wunused \
	-Wall \
	-Werror \
	-Wno-pointer-sign \
	-Wno-address-of-packed-member \
	-Wno-compare-distinct-pointer-types \
	-Wno-gnu-variable-sized-type-not-at-end \
	-Wno-macro-redefined \
	-Wno-sometimes-uninitialized \
	-Wno-tautological-compare \
	-fno-stack-protector \
	-Xclang -disable-llvm-passes \
	-O2

ifeq ($(ARCH),aarch64)
CFLAGS += \
	-DCONFIG_ARM64_PAGE_SHIFT=12 \
	-DCONFIG_ARM64_VA_BITS=48
KERNEL_ARCH_NAME = arm64
KERNEL_HEADER_VERSION ?= 4.10.0-14-generic
TARGET = -target aarch64
else ifeq ($(ARCH),x86_64)
CFLAGS += -D__ASM_SYSREG_H
KERNEL_ARCH_NAME = x86
KERNEL_HEADER_VERSION ?= 4.4.0-98-generic
TARGET = -target x86_64
else
$(error Unknown architecture $(ARCH))
endif
$(info CC: $(CC))
$(info KERNEL_HEADER_VERSION: $(KERNEL_HEADER_VERSION))

CFLAGS += -D__TARGET_ARCH_$(KERNEL_ARCH_NAME)

KERNEL_HEADERS_ROOT ?= /usr/src/linux-headers-$(KERNEL_HEADER_VERSION)
$(info KERNEL_HEADERS_ROOT: $(KERNEL_HEADERS_ROOT))

INCLUDES = -I src/ \
	-I $(KERNEL_HEADERS_ROOT)/arch/$(KERNEL_ARCH_NAME)/include \
	-I $(KERNEL_HEADERS_ROOT)/arch/$(KERNEL_ARCH_NAME)/include/uapi \
	-I $(KERNEL_HEADERS_ROOT)/arch/$(KERNEL_ARCH_NAME)/include/generated \
	-I $(KERNEL_HEADERS_ROOT)/arch/$(KERNEL_ARCH_NAME)/include/generated/uapi \
	-I $(KERNEL_HEADERS_ROOT)/include \
	-I $(KERNEL_HEADERS_ROOT)/include/uapi \
	-I $(KERNEL_HEADERS_ROOT)/include/generated \
	-I $(KERNEL_HEADERS_ROOT)/include/generated/uapi

all:
	$(CC) $(TARGET) $(CFLAGS) -emit-llvm -c $(SOURCES) $(INCLUDES) -o - | \
		$(OPT) -O2 -mtriple=bpf-pc-linux | $(LLVM_DIS) | \
		$(LLC) -march=bpf -filetype=obj -o test_program_$(ARCH)

clean:
	rm -rf test_program_*

depends:
	apt-get update
	apt-get install -y llvm-6.0 clang-6.0 libclang-6.0-dev \
		linux-headers-4.4.0-98-generic linux-headers-4.10.0-14-generic \
		make binutils curl coreutils

.PHONY: all clean depends