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tools: bpftool: use the kernel's instruction printer

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Compile the instruction printer from kernel/bpf and use it
for disassembling "translated" eBPF code.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski
2017-10-09 10:30:13 -07:00
committed by David S. Miller
parent f4ac7e0b5c
commit c9c35995bc
4 changed files with 51 additions and 21 deletions
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7
tools/bpf/bpftool/Makefile
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@@ -51,7 +51,7 @@ CC = gcc
CFLAGS += -O2
CFLAGS += -W -Wall -Wextra -Wno-unused-parameter -Wshadow
CFLAGS += -D__EXPORTED_HEADERS__ -I$(srctree)/tools/include/uapi -I$(srctree)/tools/include -I$(srctree)/tools/lib/bpf
CFLAGS += -D__EXPORTED_HEADERS__ -I$(srctree)/tools/include/uapi -I$(srctree)/tools/include -I$(srctree)/tools/lib/bpf -I$(srctree)/kernel/bpf/
LIBS = -lelf -lbfd -lopcodes $(LIBBPF)
include $(wildcard *.d)
@@ -59,7 +59,10 @@ include $(wildcard *.d)
all: $(OUTPUT)bpftool
SRCS=$(wildcard *.c)
OBJS=$(patsubst %.c,$(OUTPUT)%.o,$(SRCS))
OBJS=$(patsubst %.c,$(OUTPUT)%.o,$(SRCS)) $(OUTPUT)disasm.o
$(OUTPUT)disasm.o: $(srctree)/kernel/bpf/disasm.c
$(QUIET_CC)$(COMPILE.c) -MMD -o $@ $<
$(OUTPUT)bpftool: $(OBJS) $(LIBBPF)
$(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $^ $(LIBS)