Files
kernel/tools/testing/selftests/tc-testing/bpf/Makefile
Davide Caratti e4aecc15d7 tc-testing: fix build of eBPF programs
[ Upstream commit cf5eafbfa586d030f9321cee516b91d089e38280 ]

rely on uAPI headers in the current kernel tree, rather than requiring the
correct version installed on the test system. While at it, group all
sections in a single binary and test the 'section' parameter.

Reported-by: Lucas Bates <lucasb@mojatatu.com>
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-11-24 08:20:29 +01:00

30 lines
743 B
Makefile

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