30 lines
743 B
Makefile
30 lines
743 B
Makefile
# SPDX-License-Identifier: GPL-2.0
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APIDIR := ../../../../include/uapi
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TEST_GEN_FILES = action.o
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top_srcdir = ../../../../..
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include ../../lib.mk
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CLANG ?= clang
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LLC ?= llc
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PROBE := $(shell $(LLC) -march=bpf -mcpu=probe -filetype=null /dev/null 2>&1)
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ifeq ($(PROBE),)
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CPU ?= probe
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else
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CPU ?= generic
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endif
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CLANG_SYS_INCLUDES := $(shell $(CLANG) -v -E - </dev/null 2>&1 \
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| sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }')
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CLANG_FLAGS = -I. -I$(APIDIR) \
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$(CLANG_SYS_INCLUDES) \
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-Wno-compare-distinct-pointer-types
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$(OUTPUT)/%.o: %.c
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$(CLANG) $(CLANG_FLAGS) \
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-O2 -target bpf -emit-llvm -c $< -o - | \
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$(LLC) -march=bpf -mcpu=$(CPU) $(LLC_FLAGS) -filetype=obj -o $@
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