[PATCH 02/11] kselftest/arm64: mte: Fix pthread linking
From: Andre Przywara <andre.przywara@arm.com>
Date: 2021-03-19 16:55:38
Also in:
linux-kselftest
Subsystem:
arm64 port (aarch64 architecture), kernel selftest framework, the rest · Maintainers:
Catalin Marinas, Will Deacon, Shuah Khan, Linus Torvalds
The GCC manual suggests to use -pthread, when linking with the PThread library, also to add this switch to both the compilation and linking stages. Do as the manual says, to fix compilation with Ubuntu's 20.04 toolchain, which was getting -lpthread too early on the command line: ------------ /usr/bin/ld: /tmp/cc5zbo2A.o: in function `execute_test': tools/testing/selftests/arm64/mte/check_gcr_el1_cswitch.c:86: undefined reference to `pthread_create' /usr/bin/ld: tools/testing/selftests/arm64/mte/check_gcr_el1_cswitch.c:90: undefined reference to `pthread_join' ------------ Signed-off-by: Andre Przywara <andre.przywara@arm.com> --- tools/testing/selftests/arm64/mte/Makefile | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/tools/testing/selftests/arm64/mte/Makefile b/tools/testing/selftests/arm64/mte/Makefile
index df15d44aeb8d..90aadd86fa0d 100644
--- a/tools/testing/selftests/arm64/mte/Makefile
+++ b/tools/testing/selftests/arm64/mte/Makefile@@ -1,7 +1,8 @@ # SPDX-License-Identifier: GPL-2.0 # Copyright (C) 2020 ARM Limited -CFLAGS += -std=gnu99 -I. -lpthread +CFLAGS += -std=gnu99 -I. -pthread +LDFLAGS += -pthread SRCS := $(filter-out mte_common_util.c,$(wildcard *.c)) PROGS := $(patsubst %.c,%,$(SRCS))
--
2.17.5
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