On 3/31/16 4:25 AM, Naveen N. Rao wrote:
While at it, fix some typos in the comment.Cc: Alexei Starovoitov <a...@fb.com> Cc: David S. Miller <da...@davemloft.net> Cc: Ananth N Mavinakayanahalli <ana...@in.ibm.com> Cc: Michael Ellerman <m...@ellerman.id.au> Signed-off-by: Naveen N. Rao <naveen.n....@linux.vnet.ibm.com> --- samples/bpf/Makefile | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile index 502c9fc..88bc5a0 100644 --- a/samples/bpf/Makefile +++ b/samples/bpf/Makefile @@ -76,16 +76,13 @@ HOSTLOADLIBES_offwaketime += -lelf HOSTLOADLIBES_spintest += -lelf HOSTLOADLIBES_map_perf_test += -lelf -lrt -# point this to your LLVM backend with bpf support -LLC=$(srctree)/tools/bpf/llvm/bld/Debug+Asserts/bin/llc - -# asm/sysreg.h inline assmbly used by it is incompatible with llvm. -# But, ehere is not easy way to fix it, so just exclude it since it is +# 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 $@ 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=asm -o $@.s + -O2 -emit-llvm -c $< -o -| llc -march=bpf -filetype=asm -o $@.s
that was a workaround when clang/llvm didn't have bpf support. Now clang 3.7 and 3.8 have bpf built-in, so make sense to remove manual calls to llc completely. Just use 'clang -target bpf -O2 -D... -c $< -o $@'
