# SPDX-License-Identifier: GPL-2.0## Makefile for the linux kernel.# always-$(KBUILD_BUILTIN) += vmlinux.lds CPPFLAGS_vmlinux.lds += -U$(UTS_MACHINE) ifdef CONFIG_FUNCTION_TRACER# Do not profile debug and lowlevel utilitiesCFLAGS_REMOVE_tsc.o = -pgCFLAGS_REMOVE_paravirt-spinlocks.o = -pgCFLAGS_REMOVE_pvclock.o = -pgCFLAGS_REMOVE_kvmclock.o = -pgCFLAGS_REMOVE_ftrace.o = -pgCFLAGS_REMOVE_early_printk.o = -pgCFLAGS_REMOVE_head64.o = -pgCFLAGS_REMOVE_head32.o = -pgCFLAGS_REMOVE_rethook.o = -pgendif KASAN_SANITIZE_head$(BITS).o := nKASAN_SANITIZE_dumpstack.o := nKASAN_SANITIZE_dumpstack_$(BITS).o := nKASAN_SANITIZE_stacktrace.o := nKASAN_SANITIZE_paravirt.o := n # With some compiler versions the generated code results in boot hangs, caused# by several compilation units. To be safe, disable all instrumentation.KCSAN_SANITIZE := nKMSAN_SANITIZE_head$(BITS).o := nKMSAN_SANITIZE_nmi.o := n # If instrumentation of the following files is enabled, boot hangs during# first second.KCOV_INSTRUMENT_head$(BITS).o := n# These are called from save_stack_trace() on debug paths,# and produce large amounts of uninteresting coverage.KCOV_INSTRUMENT_stacktrace.o := nKCOV_INSTRUMENT_dumpstack.o := nKCOV_INSTRUMENT_dumpstack_$(BITS).o := nKCOV_INSTRUMENT_unwind_orc.o := nKCOV_INSTRUMENT_unwind_frame.o := nKCOV_INSTRUMENT_unwind_guess.o := n # Disable KCOV to prevent crashes during kexec: load_segments() invalidates# the GS base, which KCOV relies on for per-CPU data.## As KCOV and KEXEC compatibility should be preserved (e.g. syzkaller is# using it to collect crash dumps during kernel fuzzing), disabling# KCOV for KEXEC kernels is not an option. Selectively disabling KCOV# instrumentation for individual affected functions can be fragile, while# adding more checks to KCOV would slow it down.## As a compromise solution, disable KCOV instrumentation for the whole# source code file. If its coverage is ever needed, other approaches# should be considered.KCOV_INSTRUMENT_machine_kexec_64.o := n CFLAGS_head32.o := -fno-stack-protectorCFLAGS_head64.o := -fno-stack-protectorCFLAGS_irq.o := -I $(src)/../include/asm/trace obj-y += head_$(BITS).oobj-y += head$(BITS).oobj-y += ebda.oobj-y += platform-quirks.oobj-y += process_$(BITS).o signal.o signal_$(BITS).oobj-y += traps.o idt.o irq.o irq_$(BITS).o dumpstack_$(BITS).oobj-y += time.o ioport.o dumpstack.o nmi.oobj-$(CONFIG_X86_FRED) += fred.oobj-$(CONFIG_MODIFY_LDT_SYSCALL) += ldt.oobj-$(CONFIG_X86_KERNEL_IBT) += ibt_selftest.oobj-y += setup.o x86_init.o i8259.o irqinit.oobj-$(CONFIG_JUMP_LABEL) += jump_label.oobj-$(CONFIG_IRQ_WORK) += irq_work.oobj-y += probe_roms.oobj-$(CONFIG_X86_32) += sys_ia32.oobj-$(CONFIG_IA32_EMULATION) += sys_ia32.o signal_32.oobj-$(CONFIG_X86_64) += sys_x86_64.oobj-$(CONFIG_X86_ESPFIX64) += espfix_64.oobj-$(CONFIG_SYSFS) += ksysfs.oobj-y += bootflag.o e820.oobj-y += pci-dma.o quirks.o kdebugfs.oobj-y += alternative.o i8253.o hw_breakpoint.oobj-y += tsc.o tsc_msr.o io_delay.o rtc.oobj-y += resource.oobj-y += irqflags.oobj-y += static_call.o obj-y += process.oobj-y += fpu/obj-y += ptrace.oobj-$(CONFIG_X86_32) += tls.oobj-$(CONFIG_IA32_EMULATION) += tls.oobj-y += step.oobj-$(CONFIG_INTEL_TXT) += tboot.oobj-$(CONFIG_ISA_DMA_API) += i8237.oobj-y += stacktrace.oobj-y += cpu/obj-y += acpi/obj-y += reboot.oobj-$(CONFIG_X86_MSR) += msr.oobj-$(CONFIG_X86_CPUID) += cpuid.oobj-$(CONFIG_PCI) += early-quirks.oapm-y := apm_32.oobj-$(CONFIG_APM) += apm.oobj-$(CONFIG_SMP) += smp.oobj-$(CONFIG_SMP) += smpboot.oobj-y += tsc_sync.oobj-$(CONFIG_SMP) += setup_percpu.oobj-$(CONFIG_X86_MPPARSE) += mpparse.oobj-y += apic/obj-$(CONFIG_X86_REBOOTFIXUPS) += reboot_fixups_32.oobj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.oobj-$(CONFIG_FUNCTION_TRACER) += ftrace_$(BITS).oobj-$(CONFIG_FUNCTION_GRAPH_TRACER) += ftrace.oobj-$(CONFIG_FTRACE_SYSCALLS) += ftrace.oobj-y += trace_clock.oobj-$(CONFIG_TRACING) += trace.oobj-$(CONFIG_RETHOOK) += rethook.oobj-$(CONFIG_VMCORE_INFO) += vmcore_info_$(BITS).oobj-$(CONFIG_KEXEC_CORE) += machine_kexec_$(BITS).oobj-$(CONFIG_KEXEC_CORE) += relocate_kernel_$(BITS).oobj-$(CONFIG_KEXEC_FILE) += kexec-bzimage64.oobj-$(CONFIG_CRASH_DUMP) += crash_dump_$(BITS).o crash.oobj-y += kprobes/obj-$(CONFIG_MODULES) += module.oobj-$(CONFIG_X86_32) += doublefault_32.oobj-$(CONFIG_KGDB) += kgdb.oobj-$(CONFIG_VM86) += vm86_32.oobj-$(CONFIG_EARLY_PRINTK) += early_printk.o obj-$(CONFIG_HPET_TIMER) += hpet.o obj-$(CONFIG_AMD_NB) += amd_nb.oobj-$(CONFIG_AMD_NODE) += amd_node.oobj-$(CONFIG_DEBUG_NMI_SELFTEST) += nmi_selftest.o obj-$(CONFIG_KVM_GUEST) += kvm.o kvmclock.oobj-$(CONFIG_PARAVIRT) += paravirt.oobj-$(CONFIG_PARAVIRT) += paravirt-spinlocks.oobj-$(CONFIG_PARAVIRT_CLOCK) += pvclock.oobj-$(CONFIG_X86_PMEM_LEGACY_DEVICE) += pmem.o obj-$(CONFIG_JAILHOUSE_GUEST) += jailhouse.o obj-$(CONFIG_EISA) += eisa.oobj-$(CONFIG_PCSPKR_PLATFORM) += pcspeaker.o obj-$(CONFIG_X86_CHECK_BIOS_CORRUPTION) += check.o obj-$(CONFIG_OF) += devicetree.oobj-$(CONFIG_UPROBES) += uprobes.o obj-$(CONFIG_PERF_EVENTS) += perf_regs.oobj-$(CONFIG_SCHED_MC_PRIO) += itmt.oobj-$(CONFIG_X86_UMIP) += umip.o obj-$(CONFIG_UNWINDER_ORC) += unwind_orc.oobj-$(CONFIG_UNWINDER_FRAME_POINTER) += unwind_frame.oobj-$(CONFIG_UNWINDER_GUESS) += unwind_guess.o obj-$(CONFIG_CFI) += cfi.o obj-$(CONFIG_CALL_THUNKS) += callthunks.o obj-$(CONFIG_X86_CET) += cet.o obj-$(CONFIG_X86_USER_SHADOW_STACK) += shstk.o #### 64 bit specific filesifeq ($(CONFIG_X86_64),y) obj-$(CONFIG_AUDIT) += audit_64.o obj-$(CONFIG_GART_IOMMU) += amd_gart_64.o aperture_64.o obj-$(CONFIG_MMCONF_FAM10H) += mmconf-fam10h_64.o obj-y += vsmp_64.oendif
# SPDX-License-Identifier: GPL-2.0
#
# Makefile for the linux kernel.
#
always-$(KBUILD_BUILTIN) += vmlinux.lds
CPPFLAGS_vmlinux.lds += -U$(UTS_MACHINE)
ifdef CONFIG_FUNCTION_TRACER
# Do not profile debug and lowlevel utilities
CFLAGS_REMOVE_tsc.o = -pg
CFLAGS_REMOVE_paravirt-spinlocks.o = -pg
CFLAGS_REMOVE_pvclock.o = -pg
CFLAGS_REMOVE_kvmclock.o = -pg
CFLAGS_REMOVE_ftrace.o = -pg
CFLAGS_REMOVE_early_printk.o = -pg
CFLAGS_REMOVE_head64.o = -pg
CFLAGS_REMOVE_head32.o = -pg
CFLAGS_REMOVE_rethook.o = -pg
endif
KASAN_SANITIZE_head$(BITS).o := n
KASAN_SANITIZE_dumpstack.o := n
KASAN_SANITIZE_dumpstack_$(BITS).o := n
KASAN_SANITIZE_stacktrace.o := n
KASAN_SANITIZE_paravirt.o := n
# With some compiler versions the generated code results in boot hangs, caused
# by several compilation units. To be safe, disable all instrumentation.
KCSAN_SANITIZE := n
KMSAN_SANITIZE_head$(BITS).o := n
KMSAN_SANITIZE_nmi.o := n
# If instrumentation of the following files is enabled, boot hangs during
# first second.
KCOV_INSTRUMENT_head$(BITS).o := n
# These are called from save_stack_trace() on debug paths,
# and produce large amounts of uninteresting coverage.
KCOV_INSTRUMENT_stacktrace.o := n
KCOV_INSTRUMENT_dumpstack.o := n
KCOV_INSTRUMENT_dumpstack_$(BITS).o := n
KCOV_INSTRUMENT_unwind_orc.o := n
KCOV_INSTRUMENT_unwind_frame.o := n
KCOV_INSTRUMENT_unwind_guess.o := n
# Disable KCOV to prevent crashes during kexec: load_segments() invalidates
# the GS base, which KCOV relies on for per-CPU data.
#
# As KCOV and KEXEC compatibility should be preserved (e.g. syzkaller is
# using it to collect crash dumps during kernel fuzzing), disabling
# KCOV for KEXEC kernels is not an option. Selectively disabling KCOV
# instrumentation for individual affected functions can be fragile, while
# adding more checks to KCOV would slow it down.
#
# As a compromise solution, disable KCOV instrumentation for the whole
# source code file. If its coverage is ever needed, other approaches
# should be considered.
KCOV_INSTRUMENT_machine_kexec_64.o := n
CFLAGS_head32.o := -fno-stack-protector
CFLAGS_head64.o := -fno-stack-protector
CFLAGS_irq.o := -I $(src)/../include/asm/trace
obj-y += head_$(BITS).o
obj-y += head$(BITS).o
obj-y += ebda.o
obj-y += platform-quirks.o
obj-y += process_$(BITS).o signal.o signal_$(BITS).o
obj-y += traps.o idt.o irq.o irq_$(BITS).o dumpstack_$(BITS).o
obj-y += time.o ioport.o dumpstack.o nmi.o
obj-$(CONFIG_X86_FRED) += fred.o
obj-$(CONFIG_MODIFY_LDT_SYSCALL) += ldt.o
obj-$(CONFIG_X86_KERNEL_IBT) += ibt_selftest.o
obj-y += setup.o x86_init.o i8259.o irqinit.o
obj-$(CONFIG_JUMP_LABEL) += jump_label.o
obj-$(CONFIG_IRQ_WORK) += irq_work.o
obj-y += probe_roms.o
obj-$(CONFIG_X86_32) += sys_ia32.o
obj-$(CONFIG_IA32_EMULATION) += sys_ia32.o signal_32.o
obj-$(CONFIG_X86_64) += sys_x86_64.o
obj-$(CONFIG_X86_ESPFIX64) += espfix_64.o
obj-$(CONFIG_SYSFS) += ksysfs.o
obj-y += bootflag.o e820.o
obj-y += pci-dma.o quirks.o kdebugfs.o
obj-y += alternative.o i8253.o hw_breakpoint.o
obj-y += tsc.o tsc_msr.o io_delay.o rtc.o
obj-y += resource.o
obj-y += irqflags.o
obj-y += static_call.o
obj-y += process.o
obj-y += fpu/
obj-y += ptrace.o
obj-$(CONFIG_X86_32) += tls.o
obj-$(CONFIG_IA32_EMULATION) += tls.o
obj-y += step.o
obj-$(CONFIG_INTEL_TXT) += tboot.o
obj-$(CONFIG_ISA_DMA_API) += i8237.o
obj-y += stacktrace.o
obj-y += cpu/
obj-y += acpi/
obj-y += reboot.o
obj-$(CONFIG_X86_MSR) += msr.o
obj-$(CONFIG_X86_CPUID) += cpuid.o
obj-$(CONFIG_PCI) += early-quirks.o
apm-y := apm_32.o
obj-$(CONFIG_APM) += apm.o
obj-$(CONFIG_SMP) += smp.o
obj-$(CONFIG_SMP) += smpboot.o
obj-y += tsc_sync.o
obj-$(CONFIG_SMP) += setup_percpu.o
obj-$(CONFIG_X86_MPPARSE) += mpparse.o
obj-y += apic/
obj-$(CONFIG_X86_REBOOTFIXUPS) += reboot_fixups_32.o
obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o
obj-$(CONFIG_FUNCTION_TRACER) += ftrace_$(BITS).o
obj-$(CONFIG_FUNCTION_GRAPH_TRACER) += ftrace.o
obj-$(CONFIG_FTRACE_SYSCALLS) += ftrace.o
obj-y += trace_clock.o
obj-$(CONFIG_TRACING) += trace.o
obj-$(CONFIG_RETHOOK) += rethook.o
obj-$(CONFIG_VMCORE_INFO) += vmcore_info_$(BITS).o
obj-$(CONFIG_KEXEC_CORE) += machine_kexec_$(BITS).o
obj-$(CONFIG_KEXEC_CORE) += relocate_kernel_$(BITS).o
obj-$(CONFIG_KEXEC_FILE) += kexec-bzimage64.o
obj-$(CONFIG_CRASH_DUMP) += crash_dump_$(BITS).o crash.o
obj-y += kprobes/
obj-$(CONFIG_MODULES) += module.o
obj-$(CONFIG_X86_32) += doublefault_32.o
obj-$(CONFIG_KGDB) += kgdb.o
obj-$(CONFIG_VM86) += vm86_32.o
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
obj-$(CONFIG_HPET_TIMER) += hpet.o
obj-$(CONFIG_AMD_NB) += amd_nb.o
obj-$(CONFIG_AMD_NODE) += amd_node.o
obj-$(CONFIG_DEBUG_NMI_SELFTEST) += nmi_selftest.o
obj-$(CONFIG_KVM_GUEST) += kvm.o kvmclock.o
obj-$(CONFIG_PARAVIRT) += paravirt.o
obj-$(CONFIG_PARAVIRT) += paravirt-spinlocks.o
obj-$(CONFIG_PARAVIRT_CLOCK) += pvclock.o
obj-$(CONFIG_X86_PMEM_LEGACY_DEVICE) += pmem.o
obj-$(CONFIG_JAILHOUSE_GUEST) += jailhouse.o
obj-$(CONFIG_EISA) += eisa.o
obj-$(CONFIG_PCSPKR_PLATFORM) += pcspeaker.o
obj-$(CONFIG_X86_CHECK_BIOS_CORRUPTION) += check.o
obj-$(CONFIG_OF) += devicetree.o
obj-$(CONFIG_UPROBES) += uprobes.o
obj-$(CONFIG_PERF_EVENTS) += perf_regs.o
obj-$(CONFIG_SCHED_MC_PRIO) += itmt.o
obj-$(CONFIG_X86_UMIP) += umip.o
obj-$(CONFIG_UNWINDER_ORC) += unwind_orc.o
obj-$(CONFIG_UNWINDER_FRAME_POINTER) += unwind_frame.o
obj-$(CONFIG_UNWINDER_GUESS) += unwind_guess.o
obj-$(CONFIG_CFI) += cfi.o
obj-$(CONFIG_CALL_THUNKS) += callthunks.o
obj-$(CONFIG_X86_CET) += cet.o
obj-$(CONFIG_X86_USER_SHADOW_STACK) += shstk.o
###
# 64 bit specific files
ifeq ($(CONFIG_X86_64),y)
obj-$(CONFIG_AUDIT) += audit_64.o
obj-$(CONFIG_GART_IOMMU) += amd_gart_64.o aperture_64.o
obj-$(CONFIG_MMCONF_FAM10H) += mmconf-fam10h_64.o
obj-y += vsmp_64.o
endif