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authorJason A. Donenfeld <Jason@zx2c4.com>2024-08-27 17:27:13 +0300
committerJason A. Donenfeld <Jason@zx2c4.com>2024-08-30 16:44:38 +0300
commita5330eb3bcd87f3ce7738a2e898671a0ff561e85 (patch)
treef4e232822e1430794ff47a89d5218e1e2d7cf420
parent1e661b349041c3d5026d9e95930b1d396c0c6e6d (diff)
downloadlinux-a5330eb3bcd87f3ce7738a2e898671a0ff561e85.tar.xz
selftests: vDSO: separate LDLIBS from CFLAGS for libsodium
On systems that set -Wl,--as-needed, putting the -lsodium in the wrong place on the command line means we get a linker error: CC vdso_test_chacha /usr/bin/ld: /tmp/ccKpjnSM.o: in function `main': vdso_test_chacha.c:(.text+0x276): undefined reference to `crypto_stream_chacha20' collect2: error: ld returned 1 exit status Fix this by passing pkg-config's --libs output to the LDFLAGS field instead of the CFLAGS field, as is customary. Reported-by: Adhemerval Zanella Netto <adhemerval.zanella@linaro.org> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
-rw-r--r--tools/testing/selftests/vDSO/Makefile8
1 files changed, 5 insertions, 3 deletions
diff --git a/tools/testing/selftests/vDSO/Makefile b/tools/testing/selftests/vDSO/Makefile
index 180854eb9fec..834aa862ba2c 100644
--- a/tools/testing/selftests/vDSO/Makefile
+++ b/tools/testing/selftests/vDSO/Makefile
@@ -1,7 +1,8 @@
# SPDX-License-Identifier: GPL-2.0
uname_M := $(shell uname -m 2>/dev/null || echo not)
ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/x86/ -e s/x86_64/x86/)
-SODIUM := $(shell pkg-config --libs --cflags libsodium 2>/dev/null)
+SODIUM_LIBS := $(shell pkg-config --libs libsodium 2>/dev/null)
+SODIUM_CFLAGS := $(shell pkg-config --cflags libsodium 2>/dev/null)
TEST_GEN_PROGS := vdso_test_gettimeofday
TEST_GEN_PROGS += vdso_test_getcpu
@@ -13,7 +14,7 @@ endif
TEST_GEN_PROGS += vdso_test_correctness
ifeq ($(uname_M),x86_64)
TEST_GEN_PROGS += vdso_test_getrandom
-ifneq ($(SODIUM),)
+ifneq ($(SODIUM_LIBS),)
TEST_GEN_PROGS += vdso_test_chacha
endif
endif
@@ -41,8 +42,9 @@ $(OUTPUT)/vdso_test_getrandom: CFLAGS += -isystem $(top_srcdir)/tools/include \
-isystem $(top_srcdir)/include/uapi
$(OUTPUT)/vdso_test_chacha: $(top_srcdir)/tools/arch/$(ARCH)/vdso/vgetrandom-chacha.S
+$(OUTPUT)/vdso_test_chacha: LDLIBS += $(SODIUM_LIBS)
$(OUTPUT)/vdso_test_chacha: CFLAGS += -idirafter $(top_srcdir)/tools/include \
-idirafter $(top_srcdir)/arch/$(ARCH)/include \
-idirafter $(top_srcdir)/include \
-D__ASSEMBLY__ -DBULID_VDSO -DCONFIG_FUNCTION_ALIGNMENT=0 \
- -Wa,--noexecstack $(SODIUM)
+ -Wa,--noexecstack $(SODIUM_CFLAGS)