diff options
Diffstat (limited to 'kernel/sched/Makefile')
| -rw-r--r-- | kernel/sched/Makefile | 36 |
1 files changed, 19 insertions, 17 deletions
diff --git a/kernel/sched/Makefile b/kernel/sched/Makefile index 21fb5a5662b5..976092b7bd45 100644 --- a/kernel/sched/Makefile +++ b/kernel/sched/Makefile @@ -1,12 +1,18 @@ # SPDX-License-Identifier: GPL-2.0 -ifdef CONFIG_FUNCTION_TRACER -CFLAGS_REMOVE_clock.o = $(CC_FLAGS_FTRACE) -endif + +# The compilers are complaining about unused variables inside an if(0) scope +# block. This is daft, shut them up. +ccflags-y += $(call cc-disable-warning, unused-but-set-variable) # These files are disabled because they produce non-interesting flaky coverage # that is not a function of syscall inputs. E.g. involuntary context switches. KCOV_INSTRUMENT := n +# Disable KCSAN to avoid excessive noise and performance degradation. To avoid +# false positives ensure barriers implied by sched functions are instrumented. +KCSAN_SANITIZE := n +KCSAN_INSTRUMENT_BARRIERS := y + ifneq ($(CONFIG_SCHED_OMIT_FRAME_POINTER),y) # According to Alan Modra <alan@linuxcare.com.au>, the -fno-omit-frame-pointer is # needed for x86 only. Why this used to be enabled for all architectures is beyond @@ -16,17 +22,13 @@ ifneq ($(CONFIG_SCHED_OMIT_FRAME_POINTER),y) CFLAGS_core.o := $(PROFILING) -fno-omit-frame-pointer endif -obj-y += core.o loadavg.o clock.o cputime.o -obj-y += idle.o fair.o rt.o deadline.o -obj-y += wait.o wait_bit.o swait.o completion.o - -obj-$(CONFIG_SMP) += cpupri.o cpudeadline.o topology.o stop_task.o pelt.o -obj-$(CONFIG_SCHED_AUTOGROUP) += autogroup.o -obj-$(CONFIG_SCHEDSTATS) += stats.o -obj-$(CONFIG_SCHED_DEBUG) += debug.o -obj-$(CONFIG_CGROUP_CPUACCT) += cpuacct.o -obj-$(CONFIG_CPU_FREQ) += cpufreq.o -obj-$(CONFIG_CPU_FREQ_GOV_SCHEDUTIL) += cpufreq_schedutil.o -obj-$(CONFIG_MEMBARRIER) += membarrier.o -obj-$(CONFIG_CPU_ISOLATION) += isolation.o -obj-$(CONFIG_PSI) += psi.o +# +# Build efficiency: +# +# These compilation units have roughly the same size and complexity - so their +# build parallelizes well and finishes roughly at once: +# +obj-y += core.o +obj-y += fair.o +obj-y += build_policy.o +obj-y += build_utility.o |