From f3c93a93b564d25cab715cd71a6c3417e77b19f3 Mon Sep 17 00:00:00 2001 From: Andrii Nakryiko Date: Tue, 21 Jul 2020 21:38:04 -0700 Subject: 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: Andrii Nakryiko Signed-off-by: Alexei Starovoitov Acked-by: Quentin Monnet Link: https://lore.kernel.org/bpf/20200722043804.2373298-1-andriin@fb.com --- tools/bpf/bpftool/Makefile | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/bpf/bpftool/Makefile b/tools/bpf/bpftool/Makefile index 51bd520ed437..8462690a039b 100644 --- a/tools/bpf/bpftool/Makefile +++ b/tools/bpf/bpftool/Makefile @@ -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 $< > $@ -- cgit v1.2.3