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| author | Eduard Zingerman <eddyz87@gmail.com> | 2024-08-23 22:44:09 +0300 |
|---|---|---|
| committer | Martin KaFai Lau <martin.lau@kernel.org> | 2024-08-24 00:33:30 +0300 |
| commit | 5772c3458bb8d17d763e0f411e1bae1bf4eda88d (patch) | |
| tree | b08c86ecc70da8bd2741c709f2623fa178d046d2 /tools/testing/selftests/bpf/Makefile | |
| parent | 5cd0aea0b16a74769533ca605bc43634a4485dd9 (diff) | |
| download | linux-5772c3458bb8d17d763e0f411e1bae1bf4eda88d.tar.xz | |
selftests/bpf: use simply-expanded variables for libpcap flags
Save pkg-config output for libpcap as simply-expanded variables.
For an obscure reason 'shell' call in LDLIBS/CFLAGS recursively
expanded variables makes *.test.o files compilation non-parallel
when make is executed with -j option.
While at it, reuse 'pkg-config --cflags' call to define
-DTRAFFIC_MONITOR=1 option, it's exit status is the same as for
'pkg-config --exists'.
Fixes: f52403b6bfea ("selftests/bpf: Add traffic monitor functions.")
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20240823194409.774815-1-eddyz87@gmail.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Diffstat (limited to 'tools/testing/selftests/bpf/Makefile')
| -rw-r--r-- | tools/testing/selftests/bpf/Makefile | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile index ec7d425c4022..c120617b64ad 100644 --- a/tools/testing/selftests/bpf/Makefile +++ b/tools/testing/selftests/bpf/Makefile @@ -48,9 +48,10 @@ CFLAGS += -g $(OPT_FLAGS) -rdynamic \ LDFLAGS += $(SAN_LDFLAGS) LDLIBS += $(LIBELF_LIBS) -lz -lrt -lpthread -LDLIBS += $(shell $(PKG_CONFIG) --libs libpcap 2>/dev/null) -CFLAGS += $(shell $(PKG_CONFIG) --cflags libpcap 2>/dev/null) -CFLAGS += $(shell $(PKG_CONFIG) --exists libpcap 2>/dev/null && echo "-DTRAFFIC_MONITOR=1") +PCAP_CFLAGS := $(shell $(PKG_CONFIG) --cflags libpcap 2>/dev/null && echo "-DTRAFFIC_MONITOR=1") +PCAP_LIBS := $(shell $(PKG_CONFIG) --libs libpcap 2>/dev/null) +LDLIBS += $(PCAP_LIBS) +CFLAGS += $(PCAP_CFLAGS) # The following tests perform type punning and they may break strict # aliasing rules, which are exploited by both GCC and clang by default |