Commit f3c93a93 authored by Andrii Nakryiko's avatar Andrii Nakryiko Committed by Alexei Starovoitov
Browse files

tools/bpftool: Strip BPF .o files before skeleton generation 



Strip away DWARF info from .bpf.o files, before generating BPF skeletons.
This reduces bpftool binary size from 3.43MB to 2.58MB.

Signed-off-by: default avatarAndrii Nakryiko <andriin@fb.com>
Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
Acked-by: default avatarQuentin Monnet <quentin@isovalent.com>
Link: https://lore.kernel.org/bpf/20200722043804.2373298-1-andriin@fb.com
parent a57066b1

tools/bpf/bpftool/Makefile

+2 −1
Original line number Diff line number Diff line
@@ -59,6 +59,7 @@ endif 
INSTALL ?= install

RM ?= rm -f

CLANG ?= clang

LLVM_STRIP ?= llvm-strip



FEATURE_USER = .bpftool

FEATURE_TESTS = libbfd disassembler-four-args reallocarray zlib libcap \
@@ -147,7 +148,7 @@ $(OUTPUT)%.bpf.o: skeleton/%.bpf.c $(OUTPUT)vmlinux.h $(LIBBPF) 
		-I$(srctree)/tools/include/uapi/ \

		-I$(LIBBPF_PATH) \

		-I$(srctree)/tools/lib \

		-g -O2 -target bpf -c $< -o $@

		-g -O2 -target bpf -c $< -o $@ && $(LLVM_STRIP) -g $@



$(OUTPUT)%.skel.h: $(OUTPUT)%.bpf.o $(BPFTOOL_BOOTSTRAP)

	$(QUIET_GEN)$(BPFTOOL_BOOTSTRAP) gen skeleton $< > $@