From: Andre Przywara Date: Fri, 19 Mar 2021 16:53:25 +0000 (+0000) Subject: kselftest/arm64: mte: Fix pthread linking X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=e5decefd884da1c2c6ea18fca17b80b189afcc43;p=linux.git kselftest/arm64: mte: Fix pthread linking 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 Reviewed-by: Mark Brown Link: https://lore.kernel.org/r/20210319165334.29213-3-andre.przywara@arm.com Signed-off-by: Catalin Marinas --- diff --git a/tools/testing/selftests/arm64/mte/Makefile b/tools/testing/selftests/arm64/mte/Makefile index df15d44aeb8d4..90aadd86fa0d7 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))