coreboot-kgpe-d16/src/lib/Makefile.inc
Werner Zeh 686018988c drivers/pc80/mc146818rtc: Check date and time for sanity
There are cases where the RTC_VRT bit in register D stays set after a
power failure while the real date and time registers can contain rubbish
values (can happen when RTC is not buffered). If we do not detect this
invalid date and/or time here and keep it, Linux will use these bad
values for the initial timekeeper init. This in turn can lead to dates
before 1970 in user land which can break a lot assumptions.

To fix this, check date and time sanity when the RTC is initialized and
reset the values if needed.

Change-Id: I5bc600c78bab50c70372600347f63156df127012
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/54914
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2021-05-30 20:28:14 +00:00

378 lines
11 KiB
Makefile

# SPDX-License-Identifier: GPL-2.0-only
subdirs-y += gnat
ifeq ($(CONFIG_UBSAN),y)
ramstage-y += ubsan.c
CFLAGS_ramstage += -fsanitize=undefined
endif
# Ensure that asan_shadow_offset_callback patch is applied to GCC before ASan is used.
CFLAGS_asan += -fsanitize=kernel-address --param asan-use-shadow-offset-callback=1 \
--param asan-stack=1 -fsanitize-address-use-after-scope \
--param asan-instrumentation-with-call-threshold=0 \
--param use-after-scope-direct-emission-threshold=0
ifeq ($(CONFIG_ASAN_IN_ROMSTAGE),y)
romstage-y += asan.c
CFLAGS_asan += --param asan-globals=0
CFLAGS_romstage += $(CFLAGS_asan)
# Allow memory access without __asan_load and __asan_store checks.
$(obj)/romstage/lib/asan.o: CFLAGS_asan =
endif
ifeq ($(CONFIG_ASAN_IN_RAMSTAGE),y)
ramstage-y += asan.c
CFLAGS_asan += --param asan-globals=1
CFLAGS_ramstage += $(CFLAGS_asan)
$(obj)/ramstage/lib/asan.o: CFLAGS_asan =
endif
decompressor-y += decompressor.c
$(call src-to-obj,decompressor,$(dir)/decompressor.c): $(objcbfs)/bootblock.lz4
$(call src-to-obj,decompressor,$(dir)/decompressor.c): CCACHE_EXTRAFILES=$(objcbfs)/bootblock.lz4
# Must reset CCACHE_EXTRAFILES or make applies it transitively to dependencies.
$(objcbfs)/bootblock.lz4: CCACHE_EXTRAFILES=
decompressor-y += delay.c
decompressor-$(CONFIG_GENERIC_GPIO_LIB) += gpio.c
decompressor-y += memchr.c
decompressor-y += memcmp.c
decompressor-$(CONFIG_CBFS_VERIFICATION) += metadata_hash.c
decompressor-y += prog_ops.c
decompressor-$(CONFIG_COLLECT_TIMESTAMPS) += timestamp.c
bootblock-y += bootblock.c
bootblock-y += prog_loaders.c
bootblock-y += prog_ops.c
bootblock-y += cbfs.c
bootblock-$(CONFIG_GENERIC_GPIO_LIB) += gpio.c
bootblock-y += libgcc.c
bootblock-$(CONFIG_CBFS_VERIFICATION) += metadata_hash.c
bootblock-$(CONFIG_GENERIC_UDELAY) += timer.c
bootblock-$(CONFIG_COLLECT_TIMESTAMPS) += timestamp.c
bootblock-$(CONFIG_CONSOLE_CBMEM) += cbmem_console.c
bootblock-y += delay.c
bootblock-y += memchr.c
bootblock-y += memcmp.c
bootblock-y += boot_device.c
bootblock-y += fmap.c
bootblcok-y += rtc.c
verstage-y += prog_loaders.c
verstage-y += prog_ops.c
verstage-y += delay.c
verstage-y += cbfs.c
verstage-y += halt.c
verstage-y += fmap.c
verstage-y += libgcc.c
verstage-y += memcmp.c
verstage-y += string.c
verstage-$(CONFIG_COLLECT_TIMESTAMPS) += timestamp.c
verstage-y += boot_device.c
verstage-$(CONFIG_CONSOLE_CBMEM) += cbmem_console.c
verstage-$(CONFIG_GENERIC_UDELAY) += timer.c
verstage-$(CONFIG_GENERIC_GPIO_LIB) += gpio.c
romstage-$(CONFIG_VENDOR_EMULATION) += ramdetect.c
romstage-y += prog_loaders.c
romstage-y += prog_ops.c
romstage-y += memchr.c
romstage-y += memcmp.c
$(foreach arch,$(ARCH_SUPPORTED),\
$(eval rmodules_$(arch)-y += memcmp.c) \
$(eval rmodules_$(arch)-y += rmodule.ld))
romstage-y += fmap.c
romstage-y += delay.c
romstage-y += cbfs.c
romstage-$(CONFIG_COMPRESS_RAMSTAGE) += lzma.c lzmadecode.c
romstage-y += libgcc.c
romstage-y += memrange.c
romstage-$(CONFIG_PRIMITIVE_MEMTEST) += primitive_memtest.c
ramstage-$(CONFIG_PRIMITIVE_MEMTEST) += primitive_memtest.c
romstage-y += ramtest.c
romstage-$(CONFIG_GENERIC_GPIO_LIB) += gpio.c
ramstage-y += region_file.c
romstage-y += region_file.c
ramstage-y += romstage_handoff.c
romstage-y += romstage_handoff.c
romstage-y += selfboot.c
romstage-y += stack.c
romstage-y += rtc.c
ramstage-y += rtc.c
romstage-$(CONFIG_COLLECT_TIMESTAMPS) += timestamp.c
romstage-$(CONFIG_CONSOLE_CBMEM) += cbmem_console.c
romstage-y += compute_ip_checksum.c
ifeq ($(CONFIG_COMPILER_GCC),y)
bootblock-$(CONFIG_ARCH_BOOTBLOCK_X86_32) += gcc.c
verstage-$(CONFIG_ARCH_VERSTAGE_X86_32) += gcc.c
romstage-$(CONFIG_ARCH_ROMSTAGE_X86_32) += gcc.c
ramstage-$(CONFIG_ARCH_RAMSTAGE_X86_32) += gcc.c
smm-y += gcc.c
endif
romstage-$(CONFIG_GENERIC_UDELAY) += timer.c
ramstage-$(CONFIG_VENDOR_EMULATION) += ramdetect.c
ramstage-y += prog_loaders.c
ramstage-y += prog_ops.c
ramstage-y += hardwaremain.c
ramstage-y += selfboot.c
ramstage-y += coreboot_table.c
ramstage-y += bootmem.c
ramstage-y += fmap.c
ramstage-y += memchr.c
ramstage-y += memcmp.c
ramstage-y += malloc.c
ramstage-y += dimm_info_util.c
ramstage-y += delay.c
ramstage-y += fallback_boot.c
ramstage-y += compute_ip_checksum.c
ramstage-y += cbfs.c
ramstage-y += lzma.c lzmadecode.c
ramstage-y += stack.c
ramstage-y += hexstrtobin.c
ramstage-y += wrdd.c
ramstage-$(CONFIG_CONSOLE_CBMEM) += cbmem_console.c
ramstage-$(CONFIG_BMP_LOGO) += bmp_logo.c
ramstage-$(CONFIG_BOOTSPLASH) += bootsplash.c
ramstage-$(CONFIG_BOOTSPLASH) += jpeg.c
ramstage-$(CONFIG_COLLECT_TIMESTAMPS) += timestamp.c
ramstage-$(CONFIG_COVERAGE) += libgcov.c
ramstage-y += edid.c
ramstage-y += edid_fill_fb.c
ramstage-y += memrange.c
ramstage-$(CONFIG_COOP_MULTITASKING) += thread.c
ramstage-$(CONFIG_TIMER_QUEUE) += timer_queue.c
ramstage-$(CONFIG_GENERIC_GPIO_LIB) += gpio.c
ramstage-$(CONFIG_GENERIC_UDELAY) += timer.c
ramstage-y += b64_decode.c
ramstage-$(CONFIG_ACPI_NHLT) += nhlt.c
ramstage-y += list.c
ramstage-$(CONFIG_FLATTENED_DEVICE_TREE) += device_tree.c
ramstage-$(CONFIG_PAYLOAD_FIT_SUPPORT) += fit.c
ramstage-$(CONFIG_PAYLOAD_FIT_SUPPORT) += fit_payload.c
romstage-y += cbmem_common.c
romstage-y += imd_cbmem.c
romstage-y += imd.c
ramstage-y += cbmem_common.c
ramstage-y += imd_cbmem.c
ramstage-y += imd.c
postcar-$(CONFIG_VENDOR_EMULATION) += ramdetect.c
postcar-y += cbmem_common.c
postcar-$(CONFIG_CONSOLE_CBMEM) += cbmem_console.c
postcar-y += imd_cbmem.c
postcar-y += imd.c
postcar-y += romstage_handoff.c
bootblock-y += hexdump.c
postcar-y += hexdump.c
ramstage-y += hexdump.c
romstage-y += hexdump.c
verstage-y += hexdump.c
smm-y += hexdump.c
bootblock-$(CONFIG_FW_CONFIG) += fw_config.c
verstage-$(CONFIG_FW_CONFIG) += fw_config.c
romstage-$(CONFIG_FW_CONFIG) += fw_config.c
ramstage-$(CONFIG_FW_CONFIG) += fw_config.c
bootblock-$(CONFIG_ESPI_DEBUG) += espi_debug.c
verstage-$(CONFIG_ESPI_DEBUG) += espi_debug.c
romstage-$(CONFIG_ESPI_DEBUG) += espi_debug.c
ramstage-$(CONFIG_ESPI_DEBUG) += espi_debug.c
bootblock-$(CONFIG_REG_SCRIPT) += reg_script.c
verstage-$(CONFIG_REG_SCRIPT) += reg_script.c
romstage-$(CONFIG_REG_SCRIPT) += reg_script.c
ramstage-$(CONFIG_REG_SCRIPT) += reg_script.c
ramstage-$(CONFIG_TSEG_STAGE_CACHE) += ext_stage_cache.c
romstage-$(CONFIG_TSEG_STAGE_CACHE) += ext_stage_cache.c
postcar-$(CONFIG_TSEG_STAGE_CACHE) += ext_stage_cache.c
ramstage-$(CONFIG_CBMEM_STAGE_CACHE) += cbmem_stage_cache.c
romstage-$(CONFIG_CBMEM_STAGE_CACHE) += cbmem_stage_cache.c
postcar-$(CONFIG_CBMEM_STAGE_CACHE) += cbmem_stage_cache.c
romstage-y += boot_device.c
ramstage-y += boot_device.c
smm-y += boot_device.c
smm-y += malloc.c
smm-y += delay.c
smm-y += fmap.c
smm-y += cbfs.c memcmp.c
smm-$(CONFIG_GENERIC_UDELAY) += timer.c
bootblock-y += version.c
romstage-y += version.c
ramstage-y += version.c
smm-y += version.c
verstage-y += version.c
postcar-y += version.c
$(call src-to-obj,bootblock,$(dir)/version.c) : $(obj)/build.h
$(call src-to-obj,romstage,$(dir)/version.c) : $(obj)/build.h
$(call src-to-obj,ramstage,$(dir)/version.c) : $(obj)/build.h
$(call src-to-obj,smm,$(dir)/version.c) : $(obj)/build.h
$(call src-to-obj,verstage,$(dir)/version.c) : $(obj)/build.h
$(call src-to-obj,postcar,$(dir)/version.c) : $(obj)/build.h
$(call src-to-obj,bootblock,$(dir)/fmap.c) : $(obj)/fmap_config.h
$(call src-to-obj,romstage,$(dir)/fmap.c) : $(obj)/fmap_config.h
$(call src-to-obj,ramstage,$(dir)/fmap.c) : $(obj)/fmap_config.h
$(call src-to-obj,smm,$(dir)/fmap.c) : $(obj)/fmap_config.h
$(call src-to-obj,verstage,$(dir)/fmap.c) : $(obj)/fmap_config.h
$(call src-to-obj,postcar,$(dir)/fmap.c) : $(obj)/fmap_config.h
bootblock-y += bootmode.c
romstage-y += bootmode.c
ramstage-y += bootmode.c
verstage-y += bootmode.c
decompressor-y += halt.c
bootblock-y += halt.c
romstage-y += halt.c
ramstage-y += halt.c
smm-y += halt.c
decompressor-y += reset.c
bootblock-y += reset.c
verstage-y += reset.c
romstage-y += reset.c
postcar-y += reset.c
ramstage-y += reset.c
smm-y += reset.c
decompressor-y += string.c
bootblock-y += string.c
verstage-y += string.c
romstage-y += string.c
postcar-y += string.c
ramstage-y += string.c
smm-y += string.c
decompressor-y += crc_byte.c
bootblock-y += crc_byte.c
verstage-y += crc_byte.c
romstage-y += crc_byte.c
postcar-y += crc_byte.c
ramstage-y += crc_byte.c
smm-y += crc_byte.c
postcar-y += bootmode.c
postcar-y += boot_device.c
postcar-y += cbfs.c
postcar-y += delay.c
postcar-y += fmap.c
postcar-y += gcc.c
postcar-y += halt.c
postcar-y += libgcc.c
postcar-$(CONFIG_COMPRESS_RAMSTAGE) += lzma.c lzmadecode.c
postcar-y += memchr.c
postcar-y += memcmp.c
postcar-y += prog_loaders.c
postcar-y += prog_ops.c
postcar-y += rmodule.c
postcar-$(CONFIG_COLLECT_TIMESTAMPS) += timestamp.c
postcar-$(CONFIG_GENERIC_UDELAY) += timer.c
# Use program.ld for all the platforms which use C fo the bootblock.
bootblock-y += program.ld
decompressor-y += program.ld
postcar-y += program.ld
romstage-y += program.ld
ramstage-y += program.ld
verstage-y += program.ld
ifeq ($(CONFIG_RELOCATABLE_MODULES),y)
ramstage-y += rmodule.c
romstage-y += rmodule.c
RMODULE_LDFLAGS := -z defs -Bsymbolic
# rmodule_link_rules is a function that should be called with:
# (1) the object name to link
# (2) the dependencies
# (3) heap size of the relocatable module
# (4) arch for which the rmodules are to be linked
# It will create the necessary Make rules to create a rmodule. The resulting
# rmdoule is named $(1).rmod
define rmodule_link
$(strip $(1)): $(strip $(2)) $$(COMPILER_RT_rmodules_$(4)) $(call src-to-obj,rmodules_$(4),src/lib/rmodule.ld) | $$(RMODTOOL)
$$(LD_rmodules_$(4)) $$(LDFLAGS_rmodules_$(4)) $(RMODULE_LDFLAGS) -T $(call src-to-obj,rmodules_$(4),src/lib/rmodule.ld) --defsym=__heap_size=$(strip $(3)) -o $$@ --whole-archive --start-group $(filter-out %.ld,$(2)) --end-group
$$(NM_rmodules_$(4)) -n $$@ > $$(basename $$@).map
endef
endif
$(objcbfs)/%.debug.rmod: $(objcbfs)/%.debug | $(RMODTOOL)
$(RMODTOOL) -i $< -o $@
$(obj)/%.elf.rmod: $(obj)/%.elf | $(RMODTOOL)
$(RMODTOOL) -i $< -o $@
ramstage-$(CONFIG_RAMSTAGE_ADA) += cb.ads
ifeq ($(CONFIG_RAMSTAGE_LIBHWBASE),y)
to-ada-hex = $(eval $(1) := 16\\\#$(patsubst 0x%,%,$($(1)))\\\#)
$(call to-ada-hex,CONFIG_HWBASE_DEFAULT_MMCONF)
$(call add-special-class,hw)
hw-handler = $(eval ramstage-srcs += $$(addprefix $(1),$(2)))
$(call add-special-class,hw-gen)
hw-gen-handler = \
$(eval additional-dirs += $(dir $(2))) \
$(eval ramstage-srcs += $(2)) \
$(eval ramstage-ads-deps += $(2)) \
$(eval ramstage-adb-deps += $(2)) \
$(eval $(2): $(obj)/config.h)
subdirs-y += ../../3rdparty/libhwbase
ramstage-$(CONFIG_HAVE_MONOTONIC_TIMER) += hw-time-timer.adb
endif # CONFIG_RAMSTAGE_LIBHWBASE
romstage-y += spd_bin.c
ifeq ($(CONFIG_HAVE_SPD_IN_CBFS),y)
LIB_SPD_BIN = $(obj)/spd.bin
LIB_SPD_DEPS = $(foreach f, $(SPD_SOURCES), src/mainboard/$(MAINBOARDDIR)/spd/$(f).spd.hex)
# Include spd ROM data
$(LIB_SPD_BIN): $(LIB_SPD_DEPS)
test -n "$(SPD_SOURCES)" || \
(echo "HAVE_SPD_IN_CBFS is set but SPD_SOURCES is empty" && exit 1)
test -n "$(LIB_SPD_DEPS)" || \
(echo "SPD_SOURCES is set but no SPD file was found" && exit 1)
for f in $(LIB_SPD_DEPS); \
do for c in $$(cat $$f | grep --binary-files=text -v ^#); \
do printf $$(printf '\\%o' 0x$$c); \
done; \
done > $@
cbfs-files-y += spd.bin
spd.bin-file := $(LIB_SPD_BIN)
spd.bin-type := spd
endif
ramstage-y += uuid.c
romstage-$(CONFIG_SPD_CACHE_IN_FMAP) += spd_cache.c