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selftests/bpf: Prefer static linking for LLVM libraries 

It is not always convenient to have LLVM libraries installed inside CI
rootfs images, thus request static libraries from llvm-config.

Suggested-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/r/20240905081401.1894789-4-pulehui@huaweicloud.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
pull/959/head
Eduard Zingerman 2024-09-05 08:13:54 +00:00 committed by Alexei Starovoitov
parent a48a43884c
commit 67ab80a018
1 changed files with 3 additions and 5 deletions
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8
tools/testing/selftests/bpf/Makefile
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@ -202,11 +202,9 @@ ifeq ($(feature-llvm),1)
LLVM_CONFIG_LIB_COMPONENTS := mcdisassembler all-targets
# both llvm-config and lib.mk add -D_GNU_SOURCE, which ends up as conflict
LLVM_CFLAGS += $(filter-out -D_GNU_SOURCE,$(shell $(LLVM_CONFIG) --cflags))
LLVM_LDLIBS += $(shell $(LLVM_CONFIG) --libs $(LLVM_CONFIG_LIB_COMPONENTS))
ifeq ($(shell $(LLVM_CONFIG) --shared-mode),static)
LLVM_LDLIBS += $(shell $(LLVM_CONFIG) --system-libs $(LLVM_CONFIG_LIB_COMPONENTS))
LLVM_LDLIBS += -lstdc++
endif
LLVM_LDLIBS += $(shell $(LLVM_CONFIG) --link-static --libs $(LLVM_CONFIG_LIB_COMPONENTS))
LLVM_LDLIBS += $(shell $(LLVM_CONFIG) --link-static --system-libs $(LLVM_CONFIG_LIB_COMPONENTS))
LLVM_LDLIBS += -lstdc++
LLVM_LDFLAGS += $(shell $(LLVM_CONFIG) --ldflags)
endif