linux/tools/testing/selftests/futex/functional/Makefile
Yuwen Chen 6c4a1b9726 selftests/futex: Provide thread creation and synchronization helpers
There are timing issues in the use of threads in some selftests for futexes
as the tests rely on timed waits to ensure that the other test thread[s]
reached the lock wait function in the kernel.

That "works" on halfways idle systems, but fails under load which results
in tests failing.

Provide a set of helper functions to create test threads and to wait for
them to reach the lock wait by monitoring /proc/$PID/wchan.

[ tglx: Fixup coding style, move the timeout into the helper, adapt to test
  	harness changes and massage change log ]

Signed-off-by: Yuwen Chen <ywen.chen@foxmail.com>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/tencent_4C90BE98BBC48B38B9FBC6A95C45CF49F309@qq.com
2026-07-20 20:58:51 +02:00

38 lines
1014 B
Makefile

# SPDX-License-Identifier: GPL-2.0
PKG_CONFIG ?= pkg-config
LIBNUMA_TEST = $(shell sh -c "$(PKG_CONFIG) numa --atleast-version 2.0.18 > /dev/null 2>&1 && echo SUFFICIENT || echo NO")
INCLUDES := -I../include -I../../ $(KHDR_INCLUDES)
CFLAGS := $(CFLAGS) -g -O2 -Wall -pthread -D_FILE_OFFSET_BITS=64 -D_TIME_BITS=64 $(INCLUDES) $(KHDR_INCLUDES) -DLIBNUMA_VER_$(LIBNUMA_TEST)=1
LDLIBS := -lpthread -lrt
ifeq ($(LIBNUMA_TEST),SUFFICIENT)
LDLIBS += -lnuma
endif
LOCAL_HDRS := \
../include/futextest.h \
../include/atomic.h \
../include/futex_thread.h
TEST_GEN_PROGS := \
futex_wait_timeout \
futex_wait_wouldblock \
futex_requeue_pi \
futex_requeue_pi_signal_restart \
futex_requeue_pi_mismatched_ops \
futex_wait_uninitialized_heap \
futex_wait_private_mapped_file \
futex_wait \
futex_requeue \
futex_priv_hash \
futex_numa_mpol \
futex_waitv \
futex_numa \
robust_list \
futex_lock_pi_exiting
TEST_PROGS := run.sh
top_srcdir = ../../../../..
DEFAULT_INSTALL_HDR_PATH := 1
include ../../lib.mk