From c85061657e1c45d7063d718c7e21b880e3b1411e Mon Sep 17 00:00:00 2001 From: Jiri Olsa <jolsa@kernel.org> Date: Mon, 8 Oct 2018 10:22:59 +0200 Subject: [PATCH] bpftool: Allow add linker flags via EXTRA_LDFLAGS variable Adding EXTRA_LDFLAGS allowing user to specify extra flags for LD_FLAGS variable. Also adding LDFLAGS to build command line. Signed-off-by: Jiri Olsa <jolsa@kernel.org> Acked-by: Song Liu <songliubraving@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> --- tools/bpf/bpftool/Makefile | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/tools/bpf/bpftool/Makefile b/tools/bpf/bpftool/Makefile index 5bfa07e3f2f75..dac7eff4c7e5d 100644 --- a/tools/bpf/bpftool/Makefile +++ b/tools/bpf/bpftool/Makefile @@ -49,6 +49,9 @@ CFLAGS += -DBPFTOOL_VERSION='"$(BPFTOOL_VERSION)"' ifneq ($(EXTRA_CFLAGS),) CFLAGS += $(EXTRA_CFLAGS) endif +ifneq ($(EXTRA_LDFLAGS),) +LDFLAGS += $(EXTRA_LDFLAGS) +endif LIBS = -lelf -lbfd -lopcodes $(LIBBPF) @@ -94,7 +97,7 @@ $(OUTPUT)disasm.o: $(srctree)/kernel/bpf/disasm.c $(QUIET_CC)$(COMPILE.c) -MMD -o $@ $< $(OUTPUT)bpftool: $(OBJS) $(LIBBPF) - $(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $^ $(LIBS) + $(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ $(LIBS) $(OUTPUT)%.o: %.c $(QUIET_CC)$(COMPILE.c) -MMD -o $@ $< -- 2.39.5