diff options
Diffstat (limited to 'samples/bpf/Makefile')
| -rw-r--r-- | samples/bpf/Makefile | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile index be0a961450bc..35444f4a846b 100644 --- a/samples/bpf/Makefile +++ b/samples/bpf/Makefile @@ -208,12 +208,20 @@ endif BTF_LLC_PROBE := $(shell $(LLC) -march=bpf -mattr=help 2>&1 | grep dwarfris) BTF_PAHOLE_PROBE := $(shell $(BTF_PAHOLE) --help 2>&1 | grep BTF) BTF_OBJCOPY_PROBE := $(shell $(LLVM_OBJCOPY) --help 2>&1 | grep -i 'usage.*llvm') +BTF_LLVM_PROBE := $(shell echo "int main() { return 0; }" | \ + $(CLANG) -target bpf -O2 -g -c -x c - -o ./llvm_btf_verify.o; \ + readelf -S ./llvm_btf_verify.o | grep BTF; \ + /bin/rm -f ./llvm_btf_verify.o) +ifneq ($(BTF_LLVM_PROBE),) + EXTRA_CFLAGS += -g +else ifneq ($(and $(BTF_LLC_PROBE),$(BTF_PAHOLE_PROBE),$(BTF_OBJCOPY_PROBE)),) EXTRA_CFLAGS += -g LLC_FLAGS += -mattr=dwarfris DWARF2BTF = y endif +endif # Trick to allow make to be run from this directory all: |