From: Jiri Olsa <jolsa@kernel.org>
Date: Mon, 8 Oct 2018 10:22:59 +0200
Subject: bpftool: Allow add linker flags via EXTRA_LDFLAGS variable
Patch-mainline: v4.20-rc1
Git-commit: c85061657e1c45d7063d718c7e21b880e3b1411e
References: bsc#1109837
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>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
tools/bpf/bpftool/Makefile | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
--- a/tools/bpf/bpftool/Makefile
+++ b/tools/bpf/bpftool/Makefile
@@ -49,6 +49,9 @@ CFLAGS += -DBPFTOOL_VERSION='"$(BPFTOOL_
ifneq ($(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
$(QUIET_CC)$(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 $@ $<