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Date: Mon, 4 Apr 2016 22:31:33 +0530
From: "Naveen N. Rao" <naveen.n.rao@...ux.vnet.ibm.com>
To: linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
netdev@...r.kernel.org
Cc: Alexei Starovoitov <ast@...com>,
"David S . Miller" <davem@...emloft.net>,
Daniel Borkmann <daniel@...earbox.net>,
Ananth N Mavinakayanahalli <ananth@...ibm.com>,
Michael Ellerman <mpe@...erman.id.au>
Subject: [PATCHv2 net 2/3] samples/bpf: Use llc in PATH, rather than a hardcoded value
While at it, remove the generation of .s files and fix some typos in the
related comment.
Cc: Alexei Starovoitov <ast@...com>
Cc: David S. Miller <davem@...emloft.net>
Cc: Daniel Borkmann <daniel@...earbox.net>
Cc: Ananth N Mavinakayanahalli <ananth@...ibm.com>
Cc: Michael Ellerman <mpe@...erman.id.au>
Signed-off-by: Naveen N. Rao <naveen.n.rao@...ux.vnet.ibm.com>
---
v2: removed generation of .s files
samples/bpf/Makefile | 12 +++---------
1 file changed, 3 insertions(+), 9 deletions(-)
diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile
index 502c9fc..b820cc9 100644
--- a/samples/bpf/Makefile
+++ b/samples/bpf/Makefile
@@ -76,16 +76,10 @@ 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 $@
- 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=obj -o $@
--
2.7.4
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