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authorAndrii Nakryiko <andriin@fb.com>2020-07-22 06:38:04 +0200
committerAlexei Starovoitov <ast@kernel.org>2020-07-26 05:15:32 +0200
commitf3c93a93b564d25cab715cd71a6c3417e77b19f3 (patch)
treed342bd7d72555daab45f55de1167102e3989114d /tools/bpf
parentMerge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net (diff)
downloadlinux-f3c93a93b564d25cab715cd71a6c3417e77b19f3.tar.xz
linux-f3c93a93b564d25cab715cd71a6c3417e77b19f3.zip
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 <andriin@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Quentin Monnet <quentin@isovalent.com> Link: https://lore.kernel.org/bpf/20200722043804.2373298-1-andriin@fb.com
Diffstat (limited to 'tools/bpf')
-rw-r--r--tools/bpf/bpftool/Makefile3
1 files changed, 2 insertions, 1 deletions
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 $< > $@