# SPDX-License-Identifier: GPL-2.0 # The compilers are complaining about unused variables inside an if(0) scope# block. This is daft, shut them up.ccflags-y += $(call cc-disable-warning, unused-but-set-variable) # These files are disabled because they produce non-interesting flaky coverage# that is not a function of syscall inputs. E.g. involuntary context switches.KCOV_INSTRUMENT := n # Disable KCSAN to avoid excessive noise and performance degradation. To avoid# false positives ensure barriers implied by sched functions are instrumented.KCSAN_SANITIZE := nKCSAN_INSTRUMENT_BARRIERS := y ifneq ($(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# me.  I suspect most platforms don't need this, but until we know that for sure# I turn this off for IA-64 only.  Andreas Schwab says it's also needed on m68k# to get a correct value for the wait-channel (WCHAN in ps). --davidmCFLAGS_core.o := $(PROFILING) -fno-omit-frame-pointerendif ## 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.oobj-y += fair.oobj-y += build_policy.oobj-y += build_utility.o