From: Shen Jiamin <[email protected]> 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 <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Acked-by: Jiri Olsa <[email protected]> Link: https://lore.kernel.org/bpf/[email protected] Signed-off-by: Xiangyu Chen <[email protected]> --- 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 -- 2.32.0
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