When libelf was not installed in the standard location, it cannot be
located by the current building config.
Use pkg-config to help locate libelf in such cases.
Signed-off-by: Shen Jiamin <shen_jiamin@xxxxxxxxxxxxxxx>
---
tools/bpf/resolve_btfids/Makefile | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/tools/bpf/resolve_btfids/Makefile b/tools/bpf/resolve_btfids/Makefile
index 19a3112e271a..f7375a119f54 100644
--- a/tools/bpf/resolve_btfids/Makefile
+++ b/tools/bpf/resolve_btfids/Makefile
@@ -56,13 +56,17 @@ $(BPFOBJ): $(wildcard $(LIBBPF_SRC)/*.[ch] $(LIBBPF_SRC)/Makefile) | $(LIBBPF_OU
DESTDIR=$(LIBBPF_DESTDIR) prefix= EXTRA_CFLAGS="$(CFLAGS)" \
$(abspath $@) install_headers
+LIBELF_FLAGS := $(shell $(HOSTPKG_CONFIG) libelf --cflags 2>/dev/null)
+LIBELF_LIBS := $(shell $(HOSTPKG_CONFIG) libelf --libs 2>/dev/null || echo -lelf)
+
CFLAGS += -g \
-I$(srctree)/tools/include \
-I$(srctree)/tools/include/uapi \
-I$(LIBBPF_INCLUDE) \
- -I$(SUBCMD_SRC)
+ -I$(SUBCMD_SRC) \
+ $(LIBELF_FLAGS)
-LIBS = -lelf -lz
+LIBS = $(LIBELF_LIBS) -lz
export srctree OUTPUT CFLAGS Q
include $(srctree)/tools/build/Makefile.include
--
2.34.1
