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linux-nv-oot/scripts/conftest/Makefile
Ketan Patil 858d73775a video: tegra: nvmap: Account NvMap memory for OOM Decisions 
Account NvMap allocated memory into both RSS and CG tracking to make
efficient OOM kill decisions during memory pressure.

NvMap allocates memory via kernel APIs like alloc_pages, the kernel
memory is not accounted on behalf of process who requests the
allocation. Hence in case OOM, the OOM killer never kills the process
who has allocated memory via NvMap even though this process might be
holding most of the memory.

Solve this issue using following approach:
- Use __GFP_ACCOUNT and __GFP_NORETRY flag
-  __GFP_NORETRY will not let the current allocation flow to go into OOM
path, so that it will never trigger OOM.
- __GFP_ACCOUNT causes the allocation to be accounted to kmemcg. So any
allocation done by NvMap will be definitely accounted to kmemcg and
cgroups can be used to define memory limits.
- Add RSS counting for the process which allocates by NvMap, so that OOM
score for that process will get updated and OOM killer can pick this
process based upon the OOM score.
- Every process that has a reference to NvMap Handle would have the
memory size accounted into its RSS. On releasing the reference to
handle, the RSS would be reduced.

Bug 5222690

Change-Id: I3fa9b76ec9fc8d7f805111cb96e11e2ab1db42ce
Signed-off-by: Ketan Patil <ketanp@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3447072
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: Krishna Reddy <vdumpa@nvidia.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Reviewed-by: Ajay Nandakumar Mannargudi <anandakumarm@nvidia.com>
2025-09-22 16:27:17 -07:00

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###########################################################################
# SPDX-License-Identifier: MIT
# SPDX-FileCopyrightText: Copyright (c) 2023-2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
#
# Makefile file for NVIDIA Linux conftest
###########################################################################
#
# The parent makefile is expected to define:
#
# NV_KERNEL_SOURCES : The root of the kernel source tree.
# NV_KERNEL_OUTPUT : The kernel's output tree.
# NV_KERNEL_MODULES : A whitespace-separated list of modules to build.
# ARCH : The target CPU architecture: x86_64|arm64|powerpc
#
# Kbuild provides the variables:
#
# $(src) : The directory containing this Kbuild file.
# $(obj) : The directory where the output from this build is written.
#
#
# The conftest.sh script tests various aspects of the target kernel.
# The per-module Kbuild files included above should:
#
# - Append to the NV_CONFTEST_*_COMPILE_TESTS variables to indicate
# which conftests they require.
# - Append to the NV_OBJECTS_DEPEND_ON_CONFTEST variable any object files
# that depend on conftest.
#
# The conftest machinery below will run the requested tests and
# generate the appropriate header files.
#
CC ?= cc
LD ?= ld
NV_CONFTEST_SCRIPT := $(src)/conftest.sh
NV_CONFTEST_HEADER := $(obj)/conftest/headers.h
NV_CONFTEST_CMD := /bin/sh $(NV_CONFTEST_SCRIPT) \
"$(CC)" $(ARCH) $(NV_KERNEL_SOURCES) $(NV_KERNEL_OUTPUT)
NV_CFLAGS_FROM_CONFTEST := $(shell $(NV_CONFTEST_CMD) build_cflags)
NV_CONFTEST_CFLAGS = $(NV_CFLAGS_FROM_CONFTEST) $(EXTRA_CFLAGS) -fno-pie -Werror -Wno-address-of-packed-member
NV_CONFTEST_COMPILE_TEST_HEADERS := $(obj)/conftest/macros.h
NV_CONFTEST_COMPILE_TEST_HEADERS += $(obj)/conftest/functions.h
NV_CONFTEST_COMPILE_TEST_HEADERS += $(obj)/conftest/symbols.h
NV_CONFTEST_COMPILE_TEST_HEADERS += $(obj)/conftest/types.h
NV_CONFTEST_COMPILE_TEST_HEADERS += $(obj)/conftest/generic.h
NV_CONFTEST_HEADERS := $(obj)/conftest/patches.h
NV_CONFTEST_HEADERS += $(obj)/conftest/headers.h
NV_CONFTEST_HEADERS += $(NV_CONFTEST_COMPILE_TEST_HEADERS)
all: $(NV_CONFTEST_HEADERS)
#
# Generate a header file for a single conftest compile test. Each compile test
# header depends on conftest.sh, as well as the generated conftest/headers.h
# file, which is included in the compile test preamble.
#
$(obj)/conftest/compile-tests/%.h: $(NV_CONFTEST_SCRIPT) $(NV_CONFTEST_HEADER)
@mkdir -p $(obj)/conftest/compile-tests
@echo " CONFTEST: $(notdir $*)"
@$(NV_CONFTEST_CMD) compile_tests '$(NV_CONFTEST_CFLAGS)' \
$(notdir $*) > $@
#
# Concatenate a conftest/*.h header from its constituent compile test headers
#
# $(1): The name of the concatenated header
# $(2): The list of compile tests that make up the header
#
define NV_GENERATE_COMPILE_TEST_HEADER
$(obj)/conftest/$(1).h: $(addprefix $(obj)/conftest/compile-tests/,$(addsuffix .h,$(2)))
@mkdir -p $(obj)/conftest
@# concatenate /dev/null to prevent cat from hanging when $$^ is empty
@cat $$^ /dev/null > $$@
endef
#
# Generate the conftest compile test headers from the lists of compile tests
# provided by the module-specific Kbuild files.
#
NV_CONFTEST_FUNCTION_COMPILE_TESTS += __alloc_disk_node_has_lkclass_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += __alloc_pages_bulk_has_no_page_list_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += __assign_str_has_no_src_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += aperture_remove_all_conflicting_devices
NV_CONFTEST_FUNCTION_COMPILE_TESTS += bin_attribute_struct_mmap_has_const_bin_attribute_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += blk_execute_rq_has_no_gendisk_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += blk_mq_alloc_disk_for_queue
NV_CONFTEST_FUNCTION_COMPILE_TESTS += blk_mq_alloc_queue
NV_CONFTEST_FUNCTION_COMPILE_TESTS += blk_mq_destroy_queue
NV_CONFTEST_FUNCTION_COMPILE_TESTS += blk_queue_max_hw_sectors
NV_CONFTEST_FUNCTION_COMPILE_TESTS += blk_rq_map_sg_has_no_queue_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += block_device_operations_open_has_gendisk_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += block_device_operations_release_has_no_mode_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += queue_limits_struct_has_features
NV_CONFTEST_FUNCTION_COMPILE_TESTS += blk_mq_f_should_merge
NV_CONFTEST_FUNCTION_COMPILE_TESTS += bus_type_struct_match_has_const_drv_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += bus_type_struct_remove_has_int_return_type
NV_CONFTEST_FUNCTION_COMPILE_TESTS += bus_type_struct_uevent_has_const_dev_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += class_attribute_struct_has_const_struct_class_attribute
NV_CONFTEST_FUNCTION_COMPILE_TESTS += class_create_has_no_owner_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += class_struct_devnode_has_const_dev_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += clk_hw_determine_rate_no_reparent
NV_CONFTEST_FUNCTION_COMPILE_TESTS += define_semaphore_has_number_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += devfreq_dev_profile_has_is_cooling_device
NV_CONFTEST_FUNCTION_COMPILE_TESTS += devfreq_has_freq_table
NV_CONFTEST_FUNCTION_COMPILE_TESTS += devfreq_has_suspend_freq
NV_CONFTEST_FUNCTION_COMPILE_TESTS += device_add_disk_has_int_return_type
NV_CONFTEST_FUNCTION_COMPILE_TESTS += devm_pm_domain_attach_list
NV_CONFTEST_FUNCTION_COMPILE_TESTS += devm_of_icc_get
NV_CONFTEST_FUNCTION_COMPILE_TESTS += devm_spi_alloc_host
NV_CONFTEST_FUNCTION_COMPILE_TESTS += devm_tegra_core_dev_init_opp_table_common
NV_CONFTEST_FUNCTION_COMPILE_TESTS += devm_thermal_of_zone_register
NV_CONFTEST_FUNCTION_COMPILE_TESTS += disk_check_media_change
NV_CONFTEST_FUNCTION_COMPILE_TESTS += dma_slave_config_struct_has_slave_id
NV_CONFTEST_FUNCTION_COMPILE_TESTS += drm_aperture_remove_framebuffers
NV_CONFTEST_FUNCTION_COMPILE_TESTS += drm_connector_helper_funcs_struct_mode_valid_has_const_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += drm_connector_has_override_edid
NV_CONFTEST_FUNCTION_COMPILE_TESTS += drm_debugfs_remove_files_has_root_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += drm_display_info_struct_has_source_physical_address
NV_CONFTEST_FUNCTION_COMPILE_TESTS += drm_driver_has_fbdev_probe
NV_CONFTEST_FUNCTION_COMPILE_TESTS += drm_driver_struct_has_date
NV_CONFTEST_FUNCTION_COMPILE_TESTS += drm_driver_struct_has_irq_enabled_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += drm_edid_connector_add_modes
NV_CONFTEST_FUNCTION_COMPILE_TESTS += drm_fb_helper_alloc_info
NV_CONFTEST_FUNCTION_COMPILE_TESTS += drm_fb_helper_prepare_has_preferred_bpp_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += drm_fb_helper_unregister_info
NV_CONFTEST_FUNCTION_COMPILE_TESTS += drm_fb_helper_struct_has_info_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += drm_mode_config_struct_has_fb_base_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += drm_plane_helper_funcs_struct_atomic_async_check_has_bool_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += drm_scdc_get_set_has_struct_drm_connector_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += ethtool_keee_struct_present
NV_CONFTEST_FUNCTION_COMPILE_TESTS += ethtool_kernel_ethtool_ts_info_struct_present
NV_CONFTEST_FUNCTION_COMPILE_TESTS += ethtool_ops_get_set_coalesce_has_coal_and_extack_args
NV_CONFTEST_FUNCTION_COMPILE_TESTS += ethtool_ops_get_set_ringparam_has_ringparam_and_extack_args
NV_CONFTEST_FUNCTION_COMPILE_TESTS += ethtool_ops_get_set_rxfh_has_rxfh_param_args
NV_CONFTEST_FUNCTION_COMPILE_TESTS += fd_empty
NV_CONFTEST_FUNCTION_COMPILE_TESTS += fd_file
NV_CONFTEST_FUNCTION_COMPILE_TESTS += file_struct_has_f_ref
NV_CONFTEST_FUNCTION_COMPILE_TESTS += folio_entire_mapcount
NV_CONFTEST_FUNCTION_COMPILE_TESTS += follow_pfn
NV_CONFTEST_FUNCTION_COMPILE_TESTS += follow_pfnmap_start
NV_CONFTEST_FUNCTION_COMPILE_TESTS += fop_unsigned_offset
NV_CONFTEST_FUNCTION_COMPILE_TESTS += genpd_xlate_t_has_const_of_phandle_args
NV_CONFTEST_FUNCTION_COMPILE_TESTS += get_file_rcu_has_double_ptr_file_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += get_user_pages
NV_CONFTEST_FUNCTION_COMPILE_TESTS += hrtimer_setup
NV_CONFTEST_FUNCTION_COMPILE_TESTS += icc_get
NV_CONFTEST_FUNCTION_COMPILE_TESTS += icc_put
NV_CONFTEST_FUNCTION_COMPILE_TESTS += icc_set_bw
NV_CONFTEST_FUNCTION_COMPILE_TESTS += i2c_new_client_device
NV_CONFTEST_FUNCTION_COMPILE_TESTS += i2c_driver_struct_probe_without_i2c_device_id_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += i2c_driver_struct_has_probe_new
NV_CONFTEST_FUNCTION_COMPILE_TESTS += i2c_driver_struct_remove_return_type_int
NV_CONFTEST_FUNCTION_COMPILE_TESTS += i2c_mux_add_adapter_has_no_class_argument
NV_CONFTEST_FUNCTION_COMPILE_TESTS += iio_dev_opaque_has_mlock
NV_CONFTEST_FUNCTION_COMPILE_TESTS += iommu_map_has_gfp_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += iommu_paging_domain_alloc
NV_CONFTEST_FUNCTION_COMPILE_TESTS += ioremap_prot_has_pgprot_t_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += irq_get_nr_irqs
NV_CONFTEST_FUNCTION_COMPILE_TESTS += kthread_complete_and_exit
NV_CONFTEST_FUNCTION_COMPILE_TESTS += mii_bus_struct_has_read_c45
NV_CONFTEST_FUNCTION_COMPILE_TESTS += mii_bus_struct_has_write_c45
NV_CONFTEST_FUNCTION_COMPILE_TESTS += media_entity_remote_pad
NV_CONFTEST_FUNCTION_COMPILE_TESTS += mm_struct_struct_has_percpu_counter_rss_stat
NV_CONFTEST_FUNCTION_COMPILE_TESTS += module_import_ns_calls_stringify
NV_CONFTEST_FUNCTION_COMPILE_TESTS += mrq_pcie_request_struct_present
NV_CONFTEST_FUNCTION_COMPILE_TESTS += msi_get_virq
NV_CONFTEST_FUNCTION_COMPILE_TESTS += netif_set_tso_max_size
NV_CONFTEST_FUNCTION_COMPILE_TESTS += netif_napi_add_weight
NV_CONFTEST_FUNCTION_COMPILE_TESTS += no_llseek
NV_CONFTEST_FUNCTION_COMPILE_TESTS += of_get_named_gpio_flags
NV_CONFTEST_FUNCTION_COMPILE_TESTS += gpio_chip_struct_has_of_node_present
NV_CONFTEST_FUNCTION_COMPILE_TESTS += gpio_device_find
NV_CONFTEST_FUNCTION_COMPILE_TESTS += gpio_device_get_chip
NV_CONFTEST_FUNCTION_COMPILE_TESTS += of_property_for_each_u32_removed_internal_args
NV_CONFTEST_FUNCTION_COMPILE_TESTS += pde_data
NV_CONFTEST_FUNCTION_COMPILE_TESTS += platform_msi_domain_alloc_irqs
NV_CONFTEST_FUNCTION_COMPILE_TESTS += platform_msi_domain_free_irqs
NV_CONFTEST_FUNCTION_COMPILE_TESTS += pwm_chip_struct_has_base_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += pwm_chip_struct_has_struct_device
NV_CONFTEST_FUNCTION_COMPILE_TESTS += pwm_ops_struct_has_owner
NV_CONFTEST_FUNCTION_COMPILE_TESTS += pwm_ops_struct_has_config
NV_CONFTEST_FUNCTION_COMPILE_TESTS += pci_epc_deinit_notify
NV_CONFTEST_FUNCTION_COMPILE_TESTS += pci_epc_event_ops_struct_has_core_deinit
NV_CONFTEST_FUNCTION_COMPILE_TESTS += pci_epc_event_ops_struct_has_epc_deinit
NV_CONFTEST_FUNCTION_COMPILE_TESTS += pci_epc_event_ops_struct_has_epc_init
NV_CONFTEST_FUNCTION_COMPILE_TESTS += pci_epc_features_struct_has_bar
NV_CONFTEST_FUNCTION_COMPILE_TESTS += pci_epc_features_struct_has_core_init_notifier
NV_CONFTEST_FUNCTION_COMPILE_TESTS += pci_epc_write_header_has_vfn_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += pci_disable_pcie_error_reporting
NV_CONFTEST_FUNCTION_COMPILE_TESTS += pci_enable_pcie_error_reporting
NV_CONFTEST_FUNCTION_COMPILE_TESTS += pci_epf_alloc_space_has_epc_features_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += pci_epf_driver_struct_probe_has_id_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += pci_epc_irq_type_enum_present
NV_CONFTEST_FUNCTION_COMPILE_TESTS += pci_irq_intx
NV_CONFTEST_FUNCTION_COMPILE_TESTS += phy_loopback_has_speed_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += platform_driver_struct_remove_returns_void
NV_CONFTEST_FUNCTION_COMPILE_TESTS += register_shrinker_has_fmt_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += shrinker_alloc
NV_CONFTEST_FUNCTION_COMPILE_TESTS += slab_mem_spread
NV_CONFTEST_FUNCTION_COMPILE_TESTS += snd_soc_card_jack_new_has_no_snd_soc_jack_pins
NV_CONFTEST_FUNCTION_COMPILE_TESTS += snd_soc_component_driver_struct_has_non_legacy_dai_naming
NV_CONFTEST_FUNCTION_COMPILE_TESTS += snd_soc_dai_link_struct_has_c2c_params_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += snd_soc_dai_ops_struct_has_probe
NV_CONFTEST_FUNCTION_COMPILE_TESTS += snd_soc_dai_struct_has_symmetric_prefix
NV_CONFTEST_FUNCTION_COMPILE_TESTS += snd_soc_of_get_dai_name_has_index_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += snd_soc_rtd_to_codec
NV_CONFTEST_FUNCTION_COMPILE_TESTS += simple_util_dai_init
NV_CONFTEST_FUNCTION_COMPILE_TESTS += soc_single_value_has_xmin_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += spi_driver_struct_remove_return_type_int
NV_CONFTEST_FUNCTION_COMPILE_TESTS += spi_get_chipselect
NV_CONFTEST_FUNCTION_COMPILE_TESTS += tc_taprio_qopt_offload_struct_has_cmd
NV_CONFTEST_FUNCTION_COMPILE_TESTS += tegra264_chip_id
NV_CONFTEST_FUNCTION_COMPILE_TESTS += tegra264_io_pad_power_enable
NV_CONFTEST_FUNCTION_COMPILE_TESTS += tegra_dev_iommu_get_stream_id
NV_CONFTEST_FUNCTION_COMPILE_TESTS += tegra_ivc_struct_has_iosys_map
NV_CONFTEST_FUNCTION_COMPILE_TESTS += tegra_ivc_use_ivc_ext_driver
NV_CONFTEST_FUNCTION_COMPILE_TESTS += thermal_zone_device_priv
NV_CONFTEST_FUNCTION_COMPILE_TESTS += thermal_zone_device_ops_struct_has_get_trip_type
NV_CONFTEST_FUNCTION_COMPILE_TESTS += thermal_zone_for_each_trip
NV_CONFTEST_FUNCTION_COMPILE_TESTS += timer_delete
NV_CONFTEST_FUNCTION_COMPILE_TESTS += tty_operations_struct_send_xchar_has_u8_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += tty_operations_struct_write_has_u8_ptr_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += tty_operations_struct_set_termios_has_const_ktermios_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += uart_state_has_xmit
NV_CONFTEST_FUNCTION_COMPILE_TESTS += ufs_hba_variant_ops_has_set_dma_mask
NV_CONFTEST_FUNCTION_COMPILE_TESTS += ufs_hba_variant_ops_pwr_change_notify_has_const_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += ufs_hba_variant_ops_suspend_has_status_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += ufshcd_quirks_enum_has_ufshcd_quirk_broken_64bit_address
NV_CONFTEST_FUNCTION_COMPILE_TESTS += ufshcd_quirks_enum_has_ufshcd_quirk_broken_power_seqeunce
NV_CONFTEST_FUNCTION_COMPILE_TESTS += ufshcd_ufs_hba_struct_has_bool_is_ufs_already_enabled
NV_CONFTEST_FUNCTION_COMPILE_TESTS += v4l2_async_connection_struct_present
NV_CONFTEST_FUNCTION_COMPILE_TESTS += v4l2_async_match_type_enum_present
NV_CONFTEST_FUNCTION_COMPILE_TESTS += v4l2_async_subdev_nf_init
NV_CONFTEST_FUNCTION_COMPILE_TESTS += v4l2_async_notifier_init
NV_CONFTEST_FUNCTION_COMPILE_TESTS += v4l2_async_nf_init_has_v4l2_dev_arg
NV_CONFTEST_FUNCTION_COMPILE_TESTS += __v4l2_async_nf_add_subdev
NV_CONFTEST_FUNCTION_COMPILE_TESTS += v4l2_fwnode_endpoint_struct_has_v4l2_mbus_config_mipi_csi2
NV_CONFTEST_FUNCTION_COMPILE_TESTS += v4l2_subdev_pad_ops_struct_has_get_set_frame_interval
NV_CONFTEST_FUNCTION_COMPILE_TESTS += v4l2_subdev_pad_ops_struct_has_dv_timings
NV_CONFTEST_FUNCTION_COMPILE_TESTS += vm_area_struct_has_const_vm_flags
NV_CONFTEST_FUNCTION_COMPILE_TESTS += of_property_read_reg
NV_CONFTEST_GENERIC_COMPILE_TESTS += is_export_symbol_present_drm_gem_prime_fd_to_handle
NV_CONFTEST_GENERIC_COMPILE_TESTS += is_export_symbol_present_drm_gem_prime_handle_to_fd
NV_CONFTEST_GENERIC_COMPILE_TESTS += is_export_symbol_present_queue_limits_set
NV_CONFTEST_FUNCTION_COMPILE_TESTS += crypto_engine_ctx_struct_removed_test
NV_CONFTEST_MACRO_COMPILE_TESTS ?=
NV_CONFTEST_SYMBOL_COMPILE_TESTS ?=
$(eval $(call NV_GENERATE_COMPILE_TEST_HEADER,functions,$(NV_CONFTEST_FUNCTION_COMPILE_TESTS)))
$(eval $(call NV_GENERATE_COMPILE_TEST_HEADER,generic,$(NV_CONFTEST_GENERIC_COMPILE_TESTS)))
$(eval $(call NV_GENERATE_COMPILE_TEST_HEADER,macros,$(NV_CONFTEST_MACRO_COMPILE_TESTS)))
$(eval $(call NV_GENERATE_COMPILE_TEST_HEADER,symbols,$(NV_CONFTEST_SYMBOL_COMPILE_TESTS)))
$(eval $(call NV_GENERATE_COMPILE_TEST_HEADER,types,$(NV_CONFTEST_TYPE_COMPILE_TESTS)))
$(obj)/conftest/patches.h: $(NV_CONFTEST_SCRIPT)
@mkdir -p $(obj)/conftest
@$(NV_CONFTEST_CMD) patch_check > $@
# Each of these headers is checked for presence with a test #include; a
# corresponding #define will be generated in conftest/headers.h.
NV_HEADER_PRESENCE_TESTS = \
drm/clients/drm_client_setup.h \
drm/display/drm_dp_aux_bus.h \
drm/display/drm_dp_helper.h \
drm/display/drm_scdc_helper.h \
drm/dp/drm_dp_aux_bus.h \
drm/dp/drm_dp_helper.h \
drm/drm_client_setup.h \
drm/drm_connector.h \
drm/drm_crtc.h \
drm/drm_dp_aux_bus.h \
drm/drm_eld.h \
generated/autoconf.h \
linux/aperture.h \
linux/kconfig.h \
linux/iosys-map.h \
linux/tegra_prod.h \
net/gso.h \
net/page_pool.h
# Filename to store the define for the header in $(1); this is only consumed by
# the rule below that concatenates all of these together.
NV_HEADER_PRESENCE_PART = $(addprefix $(obj)/conftest/header_presence/,$(addsuffix .part,$(1)))
# Define a rule to check the header $(1).
define NV_HEADER_PRESENCE_CHECK
$$(call NV_HEADER_PRESENCE_PART,$(1)): $$(NV_CONFTEST_SCRIPT) $(obj)/conftest/uts_release
@mkdir -p $$(dir $$@)
@$$(NV_CONFTEST_CMD) test_kernel_header '$$(NV_CONFTEST_CFLAGS)' '$(1)' > $$@
endef
# Evaluate the rule above for each header in the list.
$(foreach header,$(NV_HEADER_PRESENCE_TESTS),$(eval $(call NV_HEADER_PRESENCE_CHECK,$(header))))
# Concatenate all of the parts into headers.h.
$(obj)/conftest/headers.h: $(call NV_HEADER_PRESENCE_PART,$(NV_HEADER_PRESENCE_TESTS))
@cat $^ > $@
clean-dirs := $(obj)/conftest
# For any object files that depend on conftest, declare the dependency here.
$(addprefix $(obj)/,$(NV_OBJECTS_DEPEND_ON_CONFTEST)): | $(NV_CONFTEST_HEADERS)
# Sanity checks of the build environment and target system/kernel
BUILD_SANITY_CHECKS = \
cc_sanity_check \
cc_version_check \
module_symvers_sanity_check
.PHONY: $(BUILD_SANITY_CHECKS)
$(BUILD_SANITY_CHECKS):
@$(NV_CONFTEST_CMD) $@ full_output
# Perform all sanity checks before generating the conftest headers
$(NV_CONFTEST_HEADERS): | $(BUILD_SANITY_CHECKS)
# Make the conftest headers depend on the kernel version string
$(obj)/conftest/uts_release: NV_GENERATE_UTS_RELEASE
@mkdir -p $(dir $@)
@NV_UTS_RELEASE="// Kernel version: `$(NV_CONFTEST_CMD) compile_tests '$(NV_CONFTEST_CFLAGS)' uts_release`"; \
if ! [ -f "$@" ] || [ "$$NV_UTS_RELEASE" != "`cat $@`" ]; \
then echo "$$NV_UTS_RELEASE" > $@; fi
.PHONY: NV_GENERATE_UTS_RELEASE
$(NV_CONFTEST_HEADERS): $(obj)/conftest/uts_release
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