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freebsd-src/sys/conf/files.x86
Mark Johnston ddf0ed09bd sdt: Implement SDT probes using hot-patching 
The idea here is to avoid a memory access and conditional branch per
probe site.  Instead, the probe is represented by an "unreachable"
unconditional function call.  asm goto is used to store the address of
the probe site (represented by a no-op sled) and the address of the
function call into a tracepoint record.  Each SDT probe carries a list
of tracepoints.

When the probe is enabled, the no-op sled corresponding to each
tracepoint is overwritten with a jmp to the corresponding label.  The
implementation uses smp_rendezvous() to park all other CPUs while the
instruction is being overwritten, as this can't be done atomically in
general.  The compiler moves argument marshalling code and the
sdt_probe() function call out-of-line, i.e., to the end of the function.

Per gallatin@ in D43504, this approach has less overhead when probes are
disabled.  To make the implementation a bit simpler, I removed support
for probes with 7 arguments; nothing makes use of this except a
regression test case.  It could be re-added later if need be.

The approach taken in this patch enables some more improvements:
1. We can now automatically fill out the "function" field of SDT probe
   names.  The SDT macros let the programmer specify the function and
   module names, but this is really a bug and shouldn't have been
   allowed.  The intent was to be able to have the same probe in
   multiple functions and to let the user restrict which probes actually
   get enabled by specifying a function name or glob.
2. We can avoid branching on SDT_PROBES_ENABLED() by adding the ability
   to include blocks of code in the out-of-line path.  For example:

	if (SDT_PROBES_ENABLED()) {
		int reason = CLD_EXITED;

		if (WCOREDUMP(signo))
			reason = CLD_DUMPED;
		else if (WIFSIGNALED(signo))
			reason = CLD_KILLED;
		SDT_PROBE1(proc, , , exit, reason);
	}

could be written

	SDT_PROBE1_EXT(proc, , , exit, reason,
		int reason;

		reason = CLD_EXITED;
		if (WCOREDUMP(signo))
			reason = CLD_DUMPED;
		else if (WIFSIGNALED(signo))
			reason = CLD_KILLED;
	);

In the future I would like to use this mechanism more generally, e.g.,
to remove branches and marshalling code used by hwpmc, and generally to
make it easier to add new tracepoint consumers without having to add
more conditional branches to hot code paths.

Reviewed by:	Domagoj Stolfa, avg
MFC after:	2 months
Differential Revision:	https://reviews.freebsd.org/D44483
2024-06-19 16:57:41 -04:00

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# This file tells config what files go into building a kernel,
# files marked standard are always included.
#
#
# This file contains all the x86 devices and such that are
# common between i386 and amd64, but aren't applicable to
# any other architecture we support.
#
# The long compile-with and dependency lines are required because of
# limitations in config: backslash-newline doesn't work in strings, and
# dependency lines other than the first are silently ignored.
#
atkbdmap.h optional atkbd_dflt_keymap \
compile-with "${KEYMAP} -L ${ATKBD_DFLT_KEYMAP} | ${KEYMAP_FIX} > ${.TARGET}" \
no-obj no-implicit-rule before-depend \
clean "atkbdmap.h"
cddl/dev/fbt/x86/fbt_isa.c optional dtrace_fbt | dtraceall compile-with "${FBT_C}"
cddl/dev/dtrace/x86/dis_tables.c optional dtrace_fbt | dtraceall compile-with "${DTRACE_C}"
cddl/dev/dtrace/x86/instr_size.c optional dtrace_fbt | dtraceall compile-with "${DTRACE_C}"
crypto/aesni/aesni.c optional aesni
aesni_ghash.o optional aesni \
dependency "$S/crypto/aesni/aesni_ghash.c" \
compile-with "${CC} -c ${CFLAGS:C/^-O2$/-O3/:N-nostdinc} ${WERROR} ${NO_WCAST_QUAL} -mmmx -msse -msse4 -maes -mpclmul ${.IMPSRC}" \
no-implicit-rule \
clean "aesni_ghash.o"
aesni_ccm.o optional aesni \
dependency "$S/crypto/aesni/aesni_ccm.c" \
compile-with "${CC} -c ${CFLAGS:C/^-O2$/-O3/:N-nostdinc} ${WERROR} ${NO_WCAST_QUAL} -mmmx -msse -msse4 -maes -mpclmul ${.IMPSRC}" \
no-implicit-rule \
clean "aesni_ccm.o"
aesni_wrap.o optional aesni \
dependency "$S/crypto/aesni/aesni_wrap.c" \
compile-with "${CC} -c ${CFLAGS:C/^-O2$/-O3/:N-nostdinc} ${WERROR} ${NO_WCAST_QUAL} -mmmx -msse -msse4 -maes ${.IMPSRC}" \
no-implicit-rule \
clean "aesni_wrap.o"
intel_sha1.o optional aesni \
dependency "$S/crypto/aesni/intel_sha1.c" \
compile-with "${CC} -c ${CFLAGS:C/^-O2$/-O3/:N-nostdinc} ${WERROR} -mmmx -msse -msse4 -msha ${.IMPSRC}" \
no-implicit-rule \
clean "intel_sha1.o"
intel_sha256.o optional aesni \
dependency "$S/crypto/aesni/intel_sha256.c" \
compile-with "${CC} -c ${CFLAGS:C/^-O2$/-O3/:N-nostdinc} ${WERROR} -mmmx -msse -msse4 -msha ${.IMPSRC}" \
no-implicit-rule \
clean "intel_sha256.o"
crypto/openssl/ossl_x86.c optional ossl
crypto/via/padlock.c optional padlock
crypto/via/padlock_cipher.c optional padlock
crypto/via/padlock_hash.c optional padlock
dev/acpica/acpi_hpet.c optional acpi
dev/acpica/acpi_if.m standard
dev/acpica/acpi_pci.c optional acpi pci
dev/acpica/acpi_pci_link.c optional acpi pci
dev/acpica/acpi_pcib.c optional acpi pci
dev/acpica/acpi_pcib_acpi.c optional acpi pci
dev/acpica/acpi_pcib_pci.c optional acpi pci
dev/acpica/acpi_pxm.c optional acpi
dev/acpica/acpi_timer.c optional acpi
dev/acpi_support/acpi_wmi_if.m standard
dev/agp/agp_amd64.c optional agp
dev/agp/agp_i810.c optional agp
dev/agp/agp_via.c optional agp
dev/amdsbwd/amdsbwd.c optional amdsbwd
dev/amdsmn/amdsmn.c optional amdsmn | amdtemp
dev/amdtemp/amdtemp.c optional amdtemp
dev/arcmsr/arcmsr.c optional arcmsr pci
dev/asmc/asmc.c optional asmc isa
dev/atkbdc/atkbd.c optional atkbd atkbdc
dev/atkbdc/atkbd_atkbdc.c optional atkbd atkbdc
dev/atkbdc/atkbdc.c optional atkbdc
dev/atkbdc/atkbdc_isa.c optional atkbdc isa
dev/atkbdc/atkbdc_subr.c optional atkbdc
dev/atkbdc/psm.c optional psm atkbdc
dev/atopcase/atopcase.c optional atopcase acpi hid spibus
dev/atopcase/atopcase_acpi.c optional atopcase acpi hid spibus
dev/bxe/bxe.c optional bxe pci
dev/bxe/bxe_stats.c optional bxe pci
dev/bxe/bxe_debug.c optional bxe pci
dev/bxe/ecore_sp.c optional bxe pci
dev/bxe/bxe_elink.c optional bxe pci
dev/bxe/57710_init_values.c optional bxe pci
dev/bxe/57711_init_values.c optional bxe pci
dev/bxe/57712_init_values.c optional bxe pci
dev/coretemp/coretemp.c optional coretemp
dev/cpuctl/cpuctl.c optional cpuctl
dev/dpms/dpms.c optional dpms
dev/fb/fb.c optional fb | vga
dev/fb/s3_pci.c optional s3pci
dev/fb/vesa.c optional vga vesa
dev/fb/vga.c optional vga
dev/fdc/fdc.c optional fdc
dev/fdc/fdc_acpi.c optional fdc
dev/fdc/fdc_isa.c optional fdc isa
dev/gpio/bytgpio.c optional bytgpio
dev/gpio/chvgpio.c optional chvgpio
dev/hpt27xx/hpt27xx_os_bsd.c optional hpt27xx
dev/hpt27xx/hpt27xx_osm_bsd.c optional hpt27xx
dev/hpt27xx/hpt27xx_config.c optional hpt27xx
dev/hpt27xx/$M-elf.hpt27xx_lib.o optional hpt27xx
dev/hptmv/entry.c optional hptmv
dev/hptmv/mv.c optional hptmv
dev/hptmv/gui_lib.c optional hptmv
dev/hptmv/hptproc.c optional hptmv
dev/hptmv/ioctl.c optional hptmv
dev/hptmv/$M-elf.hptmvraid.o optional hptmv
dev/hptnr/hptnr_os_bsd.c optional hptnr
dev/hptnr/hptnr_osm_bsd.c optional hptnr
dev/hptnr/hptnr_config.c optional hptnr
dev/hptnr/$M-elf.hptnr_lib.o optional hptnr
dev/hptrr/hptrr_os_bsd.c optional hptrr
dev/hptrr/hptrr_osm_bsd.c optional hptrr
dev/hptrr/hptrr_config.c optional hptrr
dev/hptrr/$M-elf.hptrr_lib.o optional hptrr
dev/hwpmc/hwpmc_amd.c optional hwpmc
dev/hwpmc/hwpmc_intel.c optional hwpmc
dev/hwpmc/hwpmc_core.c optional hwpmc
dev/hwpmc/hwpmc_uncore.c optional hwpmc
dev/hwpmc/hwpmc_tsc.c optional hwpmc
dev/hwpmc/hwpmc_x86.c optional hwpmc
dev/hyperv/hvsock/hv_sock.c optional hyperv
dev/hyperv/input/hv_hid.c optional hyperv hvhid
dev/hyperv/input/hv_kbd.c optional hyperv
dev/hyperv/input/hv_kbdc.c optional hyperv
dev/hyperv/pcib/vmbus_pcib.c optional hyperv pci
dev/hyperv/netvsc/hn_nvs.c optional hyperv
dev/hyperv/netvsc/hn_rndis.c optional hyperv
dev/hyperv/netvsc/if_hn.c optional hyperv
dev/hyperv/storvsc/hv_storvsc_drv_freebsd.c optional hyperv
dev/hyperv/utilities/hv_kvp.c optional hyperv
dev/hyperv/utilities/hv_snapshot.c optional hyperv
dev/hyperv/utilities/vmbus_heartbeat.c optional hyperv
dev/hyperv/utilities/vmbus_ic.c optional hyperv
dev/hyperv/utilities/vmbus_shutdown.c optional hyperv
dev/hyperv/utilities/vmbus_timesync.c optional hyperv
dev/hyperv/vmbus/hyperv.c optional hyperv
dev/hyperv/vmbus/x86/hyperv_x86.c optional hyperv
dev/hyperv/vmbus/x86/vmbus_x86.c optional hyperv
dev/hyperv/vmbus/hyperv_busdma.c optional hyperv
dev/hyperv/vmbus/vmbus.c optional hyperv pci
dev/hyperv/vmbus/vmbus_br.c optional hyperv
dev/hyperv/vmbus/vmbus_chan.c optional hyperv
dev/hyperv/vmbus/vmbus_et.c optional hyperv
dev/hyperv/vmbus/vmbus_if.m optional hyperv
dev/hyperv/vmbus/vmbus_res.c optional hyperv
dev/hyperv/vmbus/vmbus_xact.c optional hyperv
dev/ichwd/ichwd.c optional ichwd
dev/imcsmb/imcsmb.c optional imcsmb
dev/imcsmb/imcsmb_pci.c optional imcsmb pci
dev/intel/pchtherm.c optional pchtherm
dev/intel/spi.c optional intelspi
dev/intel/spi_pci.c optional intelspi pci
dev/intel/spi_acpi.c optional intelspi acpi
dev/io/iodev.c optional io
dev/iommu/busdma_iommu.c optional acpi iommu pci
dev/iommu/iommu_gas.c optional acpi iommu pci
dev/ipmi/ipmi.c optional ipmi
dev/ipmi/ipmi_acpi.c optional ipmi acpi
dev/ipmi/ipmi_isa.c optional ipmi isa
dev/ipmi/ipmi_bt.c optional ipmi
dev/ipmi/ipmi_kcs.c optional ipmi
dev/ipmi/ipmi_smic.c optional ipmi
dev/ipmi/ipmi_smbus.c optional ipmi smbus
dev/ipmi/ipmi_smbios.c optional ipmi
dev/ipmi/ipmi_ssif.c optional ipmi smbus
dev/ipmi/ipmi_pci.c optional ipmi pci
dev/isci/isci.c optional isci \
compile-with "${NORMAL_C} ${NO_WUNUSED_BUT_SET_VARIABLE}"
dev/isci/isci_controller.c optional isci
dev/isci/isci_domain.c optional isci
dev/isci/isci_interrupt.c optional isci
dev/isci/isci_io_request.c optional isci
dev/isci/isci_logger.c optional isci
dev/isci/isci_oem_parameters.c optional isci
dev/isci/isci_remote_device.c optional isci
dev/isci/isci_sysctl.c optional isci
dev/isci/isci_task_request.c optional isci
dev/isci/isci_timer.c optional isci
dev/isci/scil/sati.c optional isci
dev/isci/scil/sati_abort_task_set.c optional isci
dev/isci/scil/sati_atapi.c optional isci
dev/isci/scil/sati_device.c optional isci
dev/isci/scil/sati_inquiry.c optional isci
dev/isci/scil/sati_log_sense.c optional isci
dev/isci/scil/sati_lun_reset.c optional isci
dev/isci/scil/sati_mode_pages.c optional isci
dev/isci/scil/sati_mode_select.c optional isci \
compile-with "${NORMAL_C} ${NO_WUNUSED_BUT_SET_VARIABLE}"
dev/isci/scil/sati_mode_sense.c optional isci
dev/isci/scil/sati_mode_sense_10.c optional isci
dev/isci/scil/sati_mode_sense_6.c optional isci
dev/isci/scil/sati_move.c optional isci
dev/isci/scil/sati_passthrough.c optional isci \
compile-with "${NORMAL_C} ${NO_WUNUSED_BUT_SET_VARIABLE}"
dev/isci/scil/sati_read.c optional isci
dev/isci/scil/sati_read_buffer.c optional isci
dev/isci/scil/sati_read_capacity.c optional isci
dev/isci/scil/sati_reassign_blocks.c optional isci \
compile-with "${NORMAL_C} ${NO_WUNUSED_BUT_SET_VARIABLE}"
dev/isci/scil/sati_report_luns.c optional isci
dev/isci/scil/sati_request_sense.c optional isci
dev/isci/scil/sati_start_stop_unit.c optional isci
dev/isci/scil/sati_synchronize_cache.c optional isci
dev/isci/scil/sati_test_unit_ready.c optional isci
dev/isci/scil/sati_unmap.c optional isci \
compile-with "${NORMAL_C} ${NO_WUNUSED_BUT_SET_VARIABLE}"
dev/isci/scil/sati_util.c optional isci
dev/isci/scil/sati_verify.c optional isci
dev/isci/scil/sati_write.c optional isci
dev/isci/scil/sati_write_and_verify.c optional isci
dev/isci/scil/sati_write_buffer.c optional isci
dev/isci/scil/sati_write_long.c optional isci
dev/isci/scil/sci_abstract_list.c optional isci
dev/isci/scil/sci_base_controller.c optional isci
dev/isci/scil/sci_base_domain.c optional isci
dev/isci/scil/sci_base_iterator.c optional isci
dev/isci/scil/sci_base_library.c optional isci
dev/isci/scil/sci_base_logger.c optional isci
dev/isci/scil/sci_base_memory_descriptor_list.c optional isci
dev/isci/scil/sci_base_memory_descriptor_list_decorator.c optional isci
dev/isci/scil/sci_base_object.c optional isci
dev/isci/scil/sci_base_observer.c optional isci
dev/isci/scil/sci_base_phy.c optional isci
dev/isci/scil/sci_base_port.c optional isci
dev/isci/scil/sci_base_remote_device.c optional isci
dev/isci/scil/sci_base_request.c optional isci
dev/isci/scil/sci_base_state_machine.c optional isci
dev/isci/scil/sci_base_state_machine_logger.c optional isci
dev/isci/scil/sci_base_state_machine_observer.c optional isci
dev/isci/scil/sci_base_subject.c optional isci
dev/isci/scil/sci_util.c optional isci
dev/isci/scil/scic_sds_controller.c optional isci \
compile-with "${NORMAL_C} ${NO_WUNUSED_BUT_SET_VARIABLE}"
dev/isci/scil/scic_sds_library.c optional isci
dev/isci/scil/scic_sds_pci.c optional isci
dev/isci/scil/scic_sds_phy.c optional isci \
compile-with "${NORMAL_C} ${NO_WUNUSED_BUT_SET_VARIABLE}"
dev/isci/scil/scic_sds_port.c optional isci
dev/isci/scil/scic_sds_port_configuration_agent.c optional isci
dev/isci/scil/scic_sds_remote_device.c optional isci
dev/isci/scil/scic_sds_remote_node_context.c optional isci
dev/isci/scil/scic_sds_remote_node_table.c optional isci
dev/isci/scil/scic_sds_request.c optional isci \
compile-with "${NORMAL_C} ${NO_WUNUSED_BUT_SET_VARIABLE}"
dev/isci/scil/scic_sds_sgpio.c optional isci
dev/isci/scil/scic_sds_smp_remote_device.c optional isci
dev/isci/scil/scic_sds_smp_request.c optional isci \
compile-with "${NORMAL_C} ${NO_WUNUSED_BUT_SET_VARIABLE}"
dev/isci/scil/scic_sds_ssp_request.c optional isci
dev/isci/scil/scic_sds_stp_packet_request.c optional isci
dev/isci/scil/scic_sds_stp_remote_device.c optional isci
dev/isci/scil/scic_sds_stp_request.c optional isci \
compile-with "${NORMAL_C} ${NO_WUNUSED_BUT_SET_VARIABLE}"
dev/isci/scil/scic_sds_unsolicited_frame_control.c optional isci
dev/isci/scil/scif_sas_controller.c optional isci \
compile-with "${NORMAL_C} ${NO_WUNUSED_BUT_SET_VARIABLE}"
dev/isci/scil/scif_sas_controller_state_handlers.c optional isci
dev/isci/scil/scif_sas_controller_states.c optional isci
dev/isci/scil/scif_sas_domain.c optional isci
dev/isci/scil/scif_sas_domain_state_handlers.c optional isci \
compile-with "${NORMAL_C} ${NO_WUNUSED_BUT_SET_VARIABLE}"
dev/isci/scil/scif_sas_domain_states.c optional isci
dev/isci/scil/scif_sas_high_priority_request_queue.c optional isci
dev/isci/scil/scif_sas_internal_io_request.c optional isci
dev/isci/scil/scif_sas_io_request.c optional isci
dev/isci/scil/scif_sas_io_request_state_handlers.c optional isci
dev/isci/scil/scif_sas_io_request_states.c optional isci
dev/isci/scil/scif_sas_library.c optional isci
dev/isci/scil/scif_sas_remote_device.c optional isci
dev/isci/scil/scif_sas_remote_device_ready_substate_handlers.c optional isci
dev/isci/scil/scif_sas_remote_device_ready_substates.c optional isci \
compile-with "${NORMAL_C} ${NO_WUNUSED_BUT_SET_VARIABLE}"
dev/isci/scil/scif_sas_remote_device_starting_substate_handlers.c optional isci
dev/isci/scil/scif_sas_remote_device_starting_substates.c optional isci
dev/isci/scil/scif_sas_remote_device_state_handlers.c optional isci
dev/isci/scil/scif_sas_remote_device_states.c optional isci
dev/isci/scil/scif_sas_request.c optional isci
dev/isci/scil/scif_sas_smp_activity_clear_affiliation.c optional isci
dev/isci/scil/scif_sas_smp_io_request.c optional isci
dev/isci/scil/scif_sas_smp_phy.c optional isci
dev/isci/scil/scif_sas_smp_remote_device.c optional isci \
compile-with "${NORMAL_C} ${NO_WUNUSED_BUT_SET_VARIABLE}"
dev/isci/scil/scif_sas_stp_io_request.c optional isci
dev/isci/scil/scif_sas_stp_remote_device.c optional isci
dev/isci/scil/scif_sas_stp_task_request.c optional isci
dev/isci/scil/scif_sas_task_request.c optional isci
dev/isci/scil/scif_sas_task_request_state_handlers.c optional isci
dev/isci/scil/scif_sas_task_request_states.c optional isci
dev/isci/scil/scif_sas_timer.c optional isci
dev/itwd/itwd.c optional itwd
dev/kvm_clock/kvm_clock.c optional kvm_clock
dev/mana/gdma_main.c optional mana
dev/mana/mana_en.c optional mana
dev/mana/mana_sysctl.c optional mana
dev/mana/shm_channel.c optional mana
dev/mana/hw_channel.c optional mana
dev/mana/gdma_util.c optional mana
dev/nctgpio/nctgpio.c optional nctgpio
dev/nfe/if_nfe.c optional nfe pci
dev/ntb/if_ntb/if_ntb.c optional if_ntb
dev/ntb/ntb_transport.c optional ntb_transport | if_ntb
dev/ntb/ntb.c optional ntb | ntb_transport | if_ntb | ntb_hw_amd | ntb_hw_intel | ntb_hw_plx | ntb_hw
dev/ntb/ntb_if.m optional ntb | ntb_transport | if_ntb | ntb_hw_amd | ntb_hw_intel | ntb_hw_plx | ntb_hw
dev/ntb/ntb_hw/ntb_hw_amd.c optional ntb_hw_amd | ntb_hw
dev/ntb/ntb_hw/ntb_hw_intel.c optional ntb_hw_intel | ntb_hw
dev/ntb/ntb_hw/ntb_hw_plx.c optional ntb_hw_plx | ntb_hw
dev/ntb/test/ntb_tool.c optional ntb_tool
dev/nvram/nvram.c optional nvram isa
dev/random/ivy.c optional rdrand_rng !random_loadable
dev/random/nehemiah.c optional padlock_rng !random_loadable
dev/qat_c2xxx/qat.c optional qat_c2xxx
dev/qat_c2xxx/qat_ae.c optional qat_c2xxx
dev/qat_c2xxx/qat_c2xxx.c optional qat_c2xxx
dev/qat_c2xxx/qat_hw15.c optional qat_c2xxx
dev/smbios/smbios_subr.c standard
dev/speaker/spkr.c optional speaker
dev/superio/superio.c optional superio isa
dev/syscons/scvesactl.c optional sc vga vesa
dev/syscons/scvgarndr.c optional sc vga
dev/tpm/tpm.c optional tpm
dev/tpm/tpm_acpi.c optional tpm acpi
dev/tpm/tpm_isa.c optional tpm isa
dev/uart/uart_cpu_x86.c optional uart
dev/viawd/viawd.c optional viawd
dev/vmd/vmd.c optional vmd | vmd_bus
dev/wbwd/wbwd.c optional wbwd
dev/wdatwd/wdatwd.c optional wdatwd
isa/syscons_isa.c optional sc
isa/vga_isa.c optional vga
libkern/strcmp.c standard
libkern/strncmp.c standard
libkern/x86/crc32_sse42.c standard
kern/imgact_aout.c optional compat_aout
#
# x86 shared code between IA32 and AMD64 architectures
#
x86/acpica/OsdEnvironment.c optional acpi
x86/acpica/acpi_apm.c optional acpi
x86/acpica/srat.c optional acpi
x86/bios/vpd.c optional vpd
x86/cpufreq/est.c optional cpufreq
x86/cpufreq/hwpstate_amd.c optional cpufreq
x86/cpufreq/hwpstate_intel.c optional cpufreq
x86/cpufreq/p4tcc.c optional cpufreq
x86/cpufreq/powernow.c optional cpufreq
x86/iommu/intel_ctx.c optional acpi iommu pci
x86/iommu/intel_drv.c optional acpi iommu pci
x86/iommu/intel_fault.c optional acpi iommu pci
x86/iommu/intel_idpgtbl.c optional acpi iommu pci
x86/iommu/intel_intrmap.c optional acpi iommu pci
x86/iommu/intel_qi.c optional acpi iommu pci
x86/iommu/intel_quirks.c optional acpi iommu pci
x86/iommu/intel_utils.c optional acpi iommu pci
x86/iommu/iommu_utils.c optional acpi iommu pci
x86/isa/atrtc.c standard
x86/isa/clock.c standard
x86/isa/isa.c optional isa
x86/isa/isa_dma.c optional isa
x86/isa/nmi.c standard
x86/isa/orm.c optional isa
x86/pci/pci_bus.c optional pci
x86/pci/qpi.c optional pci
x86/x86/autoconf.c standard
x86/x86/bus_machdep.c standard
x86/x86/busdma_bounce.c standard
x86/x86/busdma_machdep.c standard
x86/x86/cpu_machdep.c standard
x86/x86/dbreg.c optional ddb | gdb
x86/x86/dump_machdep.c standard
x86/x86/fdt_machdep.c optional fdt
x86/x86/identcpu.c standard
x86/x86/intr_machdep.c standard
x86/x86/legacy.c standard
x86/x86/mca.c standard
x86/x86/x86_mem.c optional mem
x86/x86/mp_x86.c optional smp
x86/x86/nexus.c standard
x86/x86/pvclock.c optional kvm_clock | xenhvm
x86/x86/sdt_machdep.c optional kdtrace_hooks
x86/x86/stack_machdep.c optional ddb | stack
x86/x86/tsc.c standard
x86/x86/ucode.c standard
x86/x86/ucode_subr.c standard
x86/x86/vmware_guestrpc.c optional vmware_guestrpc
x86/x86/delay.c standard
x86/xen/hvm.c optional xenhvm
x86/xen/xen_apic.c optional xenhvm smp
x86/xen/xen_arch_intr.c optional xenhvm
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