Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
45 lines
1.6 KiB
Makefile
45 lines
1.6 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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# Copyright 2022 Google LLC
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KBUILD_CFLAGS := $(subst $(CC_FLAGS_FTRACE),,$(KBUILD_CFLAGS)) -fpie \
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-Os -DDISABLE_BRANCH_PROFILING $(DISABLE_KSTACK_ERASE) \
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$(DISABLE_LATENT_ENTROPY_PLUGIN) \
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$(call cc-option,-mbranch-protection=none) \
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-I$(srctree)/scripts/dtc/libfdt -fno-stack-protector \
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-include $(srctree)/include/linux/hidden.h \
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-D__DISABLE_EXPORTS -ffreestanding -D__NO_FORTIFY \
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-fno-asynchronous-unwind-tables -fno-unwind-tables \
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$(call cc-option,-fno-addrsig)
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# this code may run with the MMU off so disable unaligned accesses
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CFLAGS_map_range.o += -mstrict-align
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# remove SCS flags from all objects in this directory
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KBUILD_CFLAGS := $(filter-out $(CC_FLAGS_SCS), $(KBUILD_CFLAGS))
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# disable LTO
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KBUILD_CFLAGS := $(filter-out $(CC_FLAGS_LTO), $(KBUILD_CFLAGS))
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hostprogs := relacheck
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quiet_cmd_piobjcopy = $(quiet_cmd_objcopy)
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cmd_piobjcopy = $(cmd_objcopy) && $(obj)/relacheck $(@) $(<)
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$(obj)/%.pi.o: OBJCOPYFLAGS := --prefix-symbols=__pi_ \
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--remove-section=.note.gnu.property
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$(obj)/%.pi.o: $(obj)/%.o $(obj)/relacheck FORCE
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$(call if_changed,piobjcopy)
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# ensure that all the lib- code ends up as __init code and data
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$(obj)/lib-%.pi.o: OBJCOPYFLAGS += --prefix-alloc-sections=.init
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$(obj)/lib-%.o: $(srctree)/lib/%.c FORCE
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$(call if_changed_rule,cc_o_c)
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obj-y := idreg-override.pi.o \
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map_kernel.pi.o map_range.pi.o \
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lib-fdt.pi.o lib-fdt_ro.pi.o
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obj-$(CONFIG_RELOCATABLE) += relocate.pi.o
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obj-$(CONFIG_RANDOMIZE_BASE) += kaslr_early.pi.o
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obj-$(CONFIG_UNWIND_PATCH_PAC_INTO_SCS) += patch-scs.pi.o
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targets := $(patsubst %.pi.o,%.o,$(obj-y))
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