cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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Makefile (3475B)


      1# SPDX-License-Identifier: GPL-2.0
      2KBUILD_DEFCONFIG := mmu_defconfig
      3
      4UTS_SYSNAME = -DUTS_SYSNAME=\"Linux\"
      5
      6# What CPU version are we building for, and crack it open
      7# as major.minor.rev
      8CPU_VER   := $(CONFIG_XILINX_MICROBLAZE0_HW_VER)
      9CPU_MAJOR := $(word 1, $(subst ., , $(CPU_VER)))
     10CPU_MINOR := $(word 2, $(subst ., , $(CPU_VER)))
     11CPU_REV   := $(word 3, $(subst ., , $(CPU_VER)))
     12
     13export CPU_VER CPU_MAJOR CPU_MINOR CPU_REV
     14
     15# Use cpu-related CONFIG_ vars to set compile options.
     16# The various CONFIG_XILINX cpu features options are integers 0/1/2...
     17# rather than bools y/n
     18
     19# Work out HW multipler support. This is tricky.
     20# 1. Spartan2 has no HW multipliers.
     21# 2. MicroBlaze v3.x always uses them, except in Spartan 2
     22# 3. All other FPGa/CPU ver combos, we can trust the CONFIG_ settings
     23ifeq (,$(findstring spartan2,$(CONFIG_XILINX_MICROBLAZE0_FAMILY)))
     24  ifeq ($(CPU_MAJOR),3)
     25    CPUFLAGS-1 += -mno-xl-soft-mul
     26  else
     27    # USE_HW_MUL can be 0, 1, or 2, defining a hierarchy of HW Mul support.
     28    CPUFLAGS-$(subst 1,,$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL)) += -mxl-multiply-high
     29    CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_HW_MUL) += -mno-xl-soft-mul
     30  endif
     31endif
     32CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_DIV) += -mno-xl-soft-div
     33CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_BARREL) += -mxl-barrel-shift
     34CPUFLAGS-$(CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR) += -mxl-pattern-compare
     35
     36ifdef CONFIG_CPU_BIG_ENDIAN
     37KBUILD_CFLAGS += -mbig-endian
     38KBUILD_AFLAGS += -mbig-endian
     39KBUILD_LDFLAGS += -EB
     40else
     41KBUILD_CFLAGS += -mlittle-endian
     42KBUILD_AFLAGS += -mlittle-endian
     43KBUILD_LDFLAGS += -EL
     44endif
     45
     46CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER))
     47
     48# r31 holds current when in kernel mode
     49KBUILD_CFLAGS += -ffixed-r31 $(CPUFLAGS-y) $(CPUFLAGS-1) $(CPUFLAGS-2)
     50
     51head-y := arch/microblaze/kernel/head.o
     52libs-y += arch/microblaze/lib/
     53
     54boot := arch/microblaze/boot
     55
     56# Are we making a simpleImage.<boardname> target? If so, crack out the boardname
     57DTB:=$(subst simpleImage.,,$(filter simpleImage.%, $(MAKECMDGOALS)))
     58
     59export DTB
     60
     61all: linux.bin
     62
     63archheaders:
     64	$(Q)$(MAKE) $(build)=arch/microblaze/kernel/syscalls all
     65
     66PHONY += linux.bin linux.bin.gz linux.bin.ub
     67linux.bin.ub linux.bin.gz: linux.bin
     68linux.bin: vmlinux
     69linux.bin linux.bin.gz linux.bin.ub:
     70	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
     71	@echo 'Kernel: $(boot)/$@ is ready' ' (#'`cat .version`')'
     72
     73PHONY += simpleImage.$(DTB)
     74simpleImage.$(DTB): vmlinux
     75	$(Q)$(MAKE) $(build)=$(boot) $(addprefix $(boot)/$@., ub unstrip strip)
     76	@echo 'Kernel: $(boot)/$@ is ready' ' (#'`cat .version`')'
     77
     78define archhelp
     79  echo '* linux.bin    - Create raw binary'
     80  echo '  linux.bin.gz - Create compressed raw binary'
     81  echo '  linux.bin.ub - Create U-Boot wrapped raw binary'
     82  echo '  simpleImage.<dt> - Create the following images with <dt>.dtb linked in'
     83  echo '                    simpleImage.<dt>        : raw image'
     84  echo '                    simpleImage.<dt>.ub     : raw image with U-Boot header'
     85  echo '                    simpleImage.<dt>.unstrip: ELF (identical to vmlinux)'
     86  echo '                    simpleImage.<dt>.strip  : stripped ELF'
     87  echo '  Targets with <dt> embed a device tree blob inside the image'
     88  echo '  These targets support board with firmware that does not'
     89  echo '  support passing a device tree directly. Replace <dt> with the'
     90  echo '  name of a dts file from the arch/microblaze/boot/dts/ directory'
     91  echo '  (minus the .dts extension).'
     92endef
     93
     94MRPROPER_FILES += $(boot)/simpleImage.*