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`LLVM_STRIP` appears only once in Makefile: ``` $ grep LLVM Makefile LLVM_STRIP ?= llvm-strip -g ``` Signed-off-by: Ariel Otilibili <otilibil@eurecom.fr>
66 lines
1.7 KiB
Makefile
66 lines
1.7 KiB
Makefile
# OpenSnitch - 2023
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#
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# On Debian based distros we need the following 2 directories.
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# Otherwise, just use the kernel headers from the kernel sources.
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#
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KERNEL_DIR ?= /lib/modules/$(shell uname -r)/source
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KERNEL_HEADERS ?= /usr/src/linux-headers-$(shell uname -r)/
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CC = clang
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LLC ?= llc
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ARCH ?= $(shell uname -m)
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# as in /usr/src/linux-headers-*/arch/
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# TODO: extract correctly the archs, and add more if needed.
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ifeq ($(ARCH),x86_64)
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ARCH := x86
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else ifeq ($(ARCH),i686)
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ARCH := x86
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else ifeq ($(ARCH),armv7l)
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ARCH := arm
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else ifeq ($(ARCH),aarch64)
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ARCH := arm64
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endif
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ifeq ($(ARCH),arm)
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# on previous archs, it fails with "SMP not supported on pre-ARMv6"
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EXTRA_FLAGS = "-D__LINUX_ARM_ARCH__=7"
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endif
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SRC := $(wildcard *.c)
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BIN := $(SRC:.c=.o)
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CFLAGS = -I. \
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-I$(KERNEL_HEADERS)/arch/$(ARCH)/include/generated/ \
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-I$(KERNEL_HEADERS)/include \
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-include $(KERNEL_DIR)/include/linux/kconfig.h \
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-I$(KERNEL_DIR)/include \
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-I$(KERNEL_DIR)/include/uapi \
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-I$(KERNEL_DIR)/include/generated/uapi \
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-I$(KERNEL_DIR)/arch/$(ARCH)/include \
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-I$(KERNEL_DIR)/arch/$(ARCH)/include/generated \
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-I$(KERNEL_DIR)/arch/$(ARCH)/include/uapi \
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-I$(KERNEL_DIR)/arch/$(ARCH)/include/generated/uapi \
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-I$(KERNEL_DIR)/tools/testing/selftests/bpf/ \
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-D__KERNEL__ -D__BPF_TRACING__ -Wno-unused-value -Wno-pointer-sign \
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-D__TARGET_ARCH_$(ARCH) -Wno-compare-distinct-pointer-types \
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$(EXTRA_FLAGS) \
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-Wunused \
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-Wno-unused-value \
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-Wno-gnu-variable-sized-type-not-at-end \
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-Wno-address-of-packed-member \
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-Wno-tautological-compare \
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-Wno-unknown-warning-option \
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-fno-stack-protector \
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-g -O2 -emit-llvm
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all: $(BIN)
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%.bc: %.c
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$(CC) $(CFLAGS) -c $<
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%.o: %.bc
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$(LLC) -march=bpf -mcpu=generic -filetype=obj -o $@ $<
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clean:
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rm -f $(BIN)
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.SUFFIXES:
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