tools/testing/selftests/tc-testing/bpf/Makefile

   1 # SPDX-License-Identifier: GPL-2.0
   2
   3 APIDIR := ../../../../include/uapi
   4 TEST_GEN_FILES = action.o
   5
   6 top_srcdir = ../../../../..
   7 KSFT_KHDR_INSTALL := 1
   8 include ../../lib.mk
   9
  10 CLANG ?= clang
  11 LLC   ?= llc
  12 PROBE := $(shell $(LLC) -march=bpf -mcpu=probe -filetype=null /dev/null 2>&1)
  13
  14 ifeq ($(PROBE),)
  15   CPU ?= probe
  16 else
  17   CPU ?= generic
  18 endif
  19
  20 CLANG_SYS_INCLUDES := $(shell $(CLANG) -v -E - </dev/null 2>&1 \
  21         | sed -n '/<...> search starts here:/,/End of search list./{ s| \(/.*\)|-idirafter \1|p }')
  22
  23 CLANG_FLAGS = -I. -I$(APIDIR) \
  24               $(CLANG_SYS_INCLUDES) \
  25               -Wno-compare-distinct-pointer-types
  26
  27 $(OUTPUT)/%.o: %.c
  28         $(CLANG) $(CLANG_FLAGS) \
  29                  -O2 -target bpf -emit-llvm -c $< -o - |      \
  30         $(LLC) -march=bpf -mcpu=$(CPU) $(LLC_FLAGS) -filetype=obj -o $@