diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile index 9c27b67bc7b1395ba2ca8a4235245347633eca09..617ae55c3bb5b5b0fc8bef1e73b42a4b43a528a9 100644 --- a/tools/testing/selftests/bpf/Makefile +++ b/tools/testing/selftests/bpf/Makefile @@ -18,7 +18,7 @@ else GENDIR := $(abspath ../../../../include/generated) endif GENHDR := $(GENDIR)/autoconf.h -HOSTPKG_CONFIG := pkg-config +PKG_CONFIG ?= $(CROSS_COMPILE)pkg-config ifneq ($(wildcard $(GENHDR)),) GENFLAGS := -DHAVE_GENHDR @@ -29,13 +29,17 @@ SAN_CFLAGS ?= SAN_LDFLAGS ?= $(SAN_CFLAGS) RELEASE ?= OPT_FLAGS ?= $(if $(RELEASE),-O2,-O0) + +LIBELF_CFLAGS := $(shell $(PKG_CONFIG) libelf --cflags 2>/dev/null) +LIBELF_LIBS := $(shell $(PKG_CONFIG) libelf --libs 2>/dev/null || echo -lelf) + CFLAGS += -g $(OPT_FLAGS) -rdynamic \ -Wall -Werror \ - $(GENFLAGS) $(SAN_CFLAGS) \ + $(GENFLAGS) $(SAN_CFLAGS) $(LIBELF_CFLAGS) \ -I$(CURDIR) -I$(INCLUDE_DIR) -I$(GENDIR) -I$(LIBDIR) \ -I$(TOOLSINCDIR) -I$(APIDIR) -I$(OUTPUT) LDFLAGS += $(SAN_LDFLAGS) -LDLIBS += -lelf -lz -lrt -lpthread +LDLIBS += $(LIBELF_LIBS) -lz -lrt -lpthread ifneq ($(LLVM),) # Silence some warnings when compiled with clang @@ -219,9 +223,9 @@ $(OUTPUT)/urandom_read: urandom_read.c urandom_read_aux.c $(OUTPUT)/liburandom_r $(OUTPUT)/sign-file: ../../../../scripts/sign-file.c $(call msg,SIGN-FILE,,$@) - $(Q)$(CC) $(shell $(HOSTPKG_CONFIG) --cflags libcrypto 2> /dev/null) \ + $(Q)$(CC) $(shell $(PKG_CONFIG) --cflags libcrypto 2> /dev/null) \ $< -o $@ \ - $(shell $(HOSTPKG_CONFIG) --libs libcrypto 2> /dev/null || echo -lcrypto) + $(shell $(PKG_CONFIG) --libs libcrypto 2> /dev/null || echo -lcrypto) $(OUTPUT)/bpf_testmod.ko: $(VMLINUX_BTF) $(RESOLVE_BTFIDS) $(wildcard bpf_testmod/Makefile bpf_testmod/*.[ch]) $(call msg,MOD,,$@) diff --git a/tools/testing/selftests/bpf/README.rst b/tools/testing/selftests/bpf/README.rst index cb9b95702ac6de9bb1808c784649d2a677acc9c4..9af79c7a9b58d47e23da9ca8f1e21734d95f9b0b 100644 --- a/tools/testing/selftests/bpf/README.rst +++ b/tools/testing/selftests/bpf/README.rst @@ -77,7 +77,7 @@ In case of linker errors when running selftests, try using static linking: .. code-block:: console - $ LDLIBS=-static vmtest.sh + $ LDLIBS=-static PKG_CONFIG='pkg-config --static' vmtest.sh .. note:: Some distros may not support static linking.