diff options
| -rw-r--r-- | samples/bpf/Makefile | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile index 744dd7a16144..5bae9536f100 100644 --- a/samples/bpf/Makefile +++ b/samples/bpf/Makefile @@ -81,10 +81,14 @@ HOSTLOADLIBES_spintest += -lelf HOSTLOADLIBES_map_perf_test += -lelf -lrt HOSTLOADLIBES_test_overhead += -lelf -lrt +# Allows pointing LLC to a LLVM backend with bpf support, redefine on cmdline: +# make samples/bpf/ LLC=~/git/llvm/build/bin/llc +LLC ?= llc + # asm/sysreg.h - inline assembly used by it is incompatible with llvm. # But, there is no easy way to fix it, so just exclude it since it is # useless for BPF samples. $(obj)/%.o: $(src)/%.c clang $(NOSTDINC_FLAGS) $(LINUXINCLUDE) $(EXTRA_CFLAGS) \ -D__KERNEL__ -D__ASM_SYSREG_H -Wno-unused-value -Wno-pointer-sign \ - -O2 -emit-llvm -c $< -o -| llc -march=bpf -filetype=obj -o $@ + -O2 -emit-llvm -c $< -o -| $(LLC) -march=bpf -filetype=obj -o $@ |