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be52909f491f135b240089306f5fa11764fb8771
lk/arch/arm/rules.mk
Travis Geiselbrecht be52909f49 [make][buildall] add ability to filter buildall by architecture 
Clean up make targets list-arch and list-toolchain to be much faster and
work without needing to invoke the archtecture's arch rules.mk. This
should make it work on machines that do not have that particular
toolchain in the path.

This is setting up for using it in the github action script.
2025-07-18 21:51:50 -07:00

397 lines
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Makefile
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LOCAL_DIR := $(GET_LOCAL_DIR)
MODULE := $(LOCAL_DIR)
# can override this in local.mk
ENABLE_THUMB?=true
# default to the regular arm subarch
SUBARCH := arm
GLOBAL_DEFINES += \
ARM_CPU_$(ARM_CPU)=1
# do set some options based on the cpu core
HANDLED_CORE := false
ifeq ($(ARM_CPU),cortex-m0)
GLOBAL_DEFINES += \
ARM_CPU_CORTEX_M0=1 \
ARM_ISA_ARMV6M=1 \
ARM_WITH_THUMB=1 \
USE_BUILTIN_ATOMICS=0
HANDLED_CORE := true
ENABLE_THUMB := true
SUBARCH := arm-m
endif
ifeq ($(ARM_CPU),cortex-m0plus)
GLOBAL_DEFINES += \
ARM_CPU_CORTEX_M0_PLUS=1 \
ARM_ISA_ARMV6M=1 \
ARM_WITH_THUMB=1 \
USE_BUILTIN_ATOMICS=0
HANDLED_CORE := true
ENABLE_THUMB := true
SUBARCH := arm-m
endif
ifeq ($(ARM_CPU),cortex-m3)
GLOBAL_DEFINES += \
ARM_CPU_CORTEX_M3=1 \
ARM_ISA_ARMv7=1 \
ARM_ISA_ARMv7M=1 \
ARM_WITH_THUMB=1 \
ARM_WITH_THUMB2=1
HANDLED_CORE := true
ENABLE_THUMB := true
SUBARCH := arm-m
endif
ifeq ($(ARM_CPU),cortex-m4)
GLOBAL_DEFINES += \
ARM_CPU_CORTEX_M4=1 \
ARM_ISA_ARMv7=1 \
ARM_ISA_ARMv7M=1 \
ARM_WITH_THUMB=1 \
ARM_WITH_THUMB2=1
HANDLED_CORE := true
ENABLE_THUMB := true
SUBARCH := arm-m
endif
ifeq ($(ARM_CPU),cortex-m4f)
GLOBAL_DEFINES += \
ARM_CPU_CORTEX_M4=1 \
ARM_CPU_CORTEX_M4F=1 \
ARM_ISA_ARMv7=1 \
ARM_ISA_ARMv7M=1 \
ARM_WITH_THUMB=1 \
ARM_WITH_THUMB2=1 \
ARM_WITH_VFP=1 \
ARM_WITH_VFP_SP_ONLY=1
HANDLED_CORE := true
ENABLE_THUMB := true
SUBARCH := arm-m
endif
ifeq ($(ARM_CPU),cortex-m55)
GLOBAL_DEFINES += \
ARM_CPU_CORTEX_M55=1 \
ARM_ISA_ARMv7=1 \
ARM_ISA_ARMv7M=1 \
ARM_WITH_THUMB=1 \
ARM_WITH_THUMB2=1 \
ARM_WITH_CACHE=1
HANDLED_CORE := true
ENABLE_THUMB := true
SUBARCH := arm-m
endif
ifeq ($(ARM_CPU),cortex-m7)
GLOBAL_DEFINES += \
ARM_CPU_CORTEX_M7=1 \
ARM_ISA_ARMv7=1 \
ARM_ISA_ARMv7M=1 \
ARM_WITH_THUMB=1 \
ARM_WITH_THUMB2=1 \
ARM_WITH_CACHE=1
HANDLED_CORE := true
ENABLE_THUMB := true
SUBARCH := arm-m
endif
ifeq ($(ARM_CPU),cortex-m7-fpu-sp-d16)
GLOBAL_DEFINES += \
ARM_CPU_CORTEX_M7=1 \
ARM_ISA_ARMv7=1 \
ARM_ISA_ARMv7M=1 \
ARM_WITH_THUMB=1 \
ARM_WITH_THUMB2=1 \
ARM_WITH_CACHE=1 \
ARM_WITH_VFP=1 \
ARM_WITH_VFP_SP_ONLY=1
HANDLED_CORE := true
ENABLE_THUMB := true
SUBARCH := arm-m
endif
ifeq ($(ARM_CPU),cortex-a7)
GLOBAL_DEFINES += \
ARM_WITH_CP15=1 \
ARCH_HAS_MMU=1 \
ARM_ISA_ARMv7=1 \
ARM_ISA_ARMv7A=1 \
ARM_WITH_VFP=1 \
ARM_WITH_NEON=1 \
ARM_WITH_THUMB=1 \
ARM_WITH_THUMB2=1 \
ARM_WITH_CACHE=1 \
ARM_WITH_HYP=1
HANDLED_CORE := true
endif
ifeq ($(ARM_CPU),cortex-a15)
GLOBAL_DEFINES += \
ARM_WITH_CP15=1 \
ARCH_HAS_MMU=1 \
ARM_ISA_ARMv7=1 \
ARM_ISA_ARMv7A=1 \
ARM_WITH_THUMB=1 \
ARM_WITH_THUMB2=1 \
ARM_WITH_CACHE=1 \
ARM_WITH_L2=1
ifneq ($(ARM_WITHOUT_VFP_NEON),true)
GLOBAL_DEFINES += \
ARM_WITH_VFP=1 \
ARM_WITH_NEON=1
endif
HANDLED_CORE := true
endif
ifeq ($(ARM_CPU),cortex-a8)
GLOBAL_DEFINES += \
ARM_WITH_CP15=1 \
ARCH_HAS_MMU=1 \
ARM_ISA_ARMv7=1 \
ARM_ISA_ARMv7A=1 \
ARM_WITH_VFP=1 \
ARM_WITH_NEON=1 \
ARM_WITH_THUMB=1 \
ARM_WITH_THUMB2=1 \
ARM_WITH_CACHE=1 \
ARM_WITH_L2=1
HANDLED_CORE := true
endif
ifeq ($(ARM_CPU),cortex-a9)
GLOBAL_DEFINES += \
ARM_WITH_CP15=1 \
ARCH_HAS_MMU=1 \
ARM_ISA_ARMv7=1 \
ARM_ISA_ARMv7A=1 \
ARM_WITH_THUMB=1 \
ARM_WITH_THUMB2=1 \
ARM_WITH_CACHE=1
HANDLED_CORE := true
endif
ifeq ($(ARM_CPU),cortex-a9-neon)
GLOBAL_DEFINES += \
ARM_CPU_CORTEX_A9=1 \
ARM_WITH_CP15=1 \
ARCH_HAS_MMU=1 \
ARM_ISA_ARMv7=1 \
ARM_ISA_ARMv7A=1 \
ARM_WITH_VFP=1 \
ARM_WITH_NEON=1 \
ARM_WITH_THUMB=1 \
ARM_WITH_THUMB2=1 \
ARM_WITH_CACHE=1
HANDLED_CORE := true
endif
ifeq ($(ARM_CPU),arm1136j-s)
GLOBAL_DEFINES += \
ARM_WITH_CP15=1 \
ARCH_HAS_MMU=1 \
ARM_ISA_ARMv6=1 \
ARM_WITH_THUMB=1 \
ARM_WITH_CACHE=1 \
ARM_CPU_ARM1136=1
HANDLED_CORE := true
endif
ifeq ($(ARM_CPU),arm1176jzf-s)
GLOBAL_DEFINES += \
ARM_WITH_CP15=1 \
ARCH_HAS_MMU=1 \
ARM_ISA_ARMv6=1 \
ARM_WITH_VFP=1 \
ARM_WITH_THUMB=1 \
ARM_WITH_CACHE=1 \
ARM_CPU_ARM1136=1
HANDLED_CORE := true
endif
ifeq ($(ARM_CPU),cortex-r4f)
GLOBAL_DEFINES += \
ARM_CPU_CORTEX_R4F=1 \
ARM_ISA_ARMv7=1 \
ARM_WITH_VFP=1 \
ARM_WITH_THUMB=1
ENABLE_THUMB := true
HANDLED_CORE := true
endif
ifeq ($(ARM_CPU),armemu)
# flavor of emulated cpu by the armemu project
GLOBAL_DEFINES += \
ARM_WITH_CP15=1 \
ARM_ISA_ARMv7=1 \
ARM_ISA_ARMv7A=1 \
ARM_WITH_CACHE=1
HANDLED_CORE := true
ENABLE_THUMB := false # armemu doesn't currently support thumb properly
endif
ifneq ($(HANDLED_CORE),true)
$(error $(LOCAL_DIR)/rules.mk doesnt have logic for arm core $(ARM_CPU))
endif
THUMBCFLAGS :=
THUMBINTERWORK :=
ifeq ($(ENABLE_THUMB),true)
THUMBCFLAGS := -mthumb -D__thumb__
ifneq ($(SUBARCH),arm-m)
# Only enable thumb interworking switch if we're compiling in a mixed
# arm/thumb environment. Also possible this switch is not needed anymore.
THUMBINTERWORK := -mthumb-interwork
endif
endif
GLOBAL_INCLUDES += \
$(LOCAL_DIR)/$(SUBARCH)/include
ifeq ($(SUBARCH),arm)
MODULE_SRCS += \
$(LOCAL_DIR)/arm/start.S \
$(LOCAL_DIR)/arm/asm.S \
$(LOCAL_DIR)/arm/cache-ops.S \
$(LOCAL_DIR)/arm/cache.c \
$(LOCAL_DIR)/arm/debug.c \
$(LOCAL_DIR)/arm/ops.S \
$(LOCAL_DIR)/arm/faults.c \
$(LOCAL_DIR)/arm/mmu.c \
$(LOCAL_DIR)/arm/thread.c
MODULE_FLOAT_SRCS += \
$(LOCAL_DIR)/arm/exceptions.S \
$(LOCAL_DIR)/arm/fpu.c \
MODULE_ARM_OVERRIDE_SRCS := \
$(LOCAL_DIR)/arm/arch.c
GLOBAL_DEFINES += \
ARCH_DEFAULT_STACK_SIZE=4096
ARCH_OPTFLAGS := -O2
WITH_LINKER_GC ?= 1
# use the numeric registers when disassembling code
ARCH_OBJDUMP_FLAGS := -Mreg-names-raw
# we have a mmu and want the vmm/pmm
WITH_KERNEL_VM ?= 1
# for arm, have the kernel occupy the entire top 3GB of virtual space,
# but put the kernel itself at 0x80000000.
# this leaves 0x40000000 - 0x80000000 open for kernel space to use.
GLOBAL_DEFINES += \
KERNEL_ASPACE_BASE=0x40000000 \
KERNEL_ASPACE_SIZE=0xc0000000
KERNEL_BASE ?= 0x80000000
KERNEL_LOAD_OFFSET ?= 0
GLOBAL_DEFINES += \
KERNEL_BASE=$(KERNEL_BASE) \
KERNEL_LOAD_OFFSET=$(KERNEL_LOAD_OFFSET)
# if its requested we build with SMP, arm generically supports 4 cpus
ifeq ($(WITH_SMP),1)
SMP_MAX_CPUS ?= 4
SMP_CPU_CLUSTER_SHIFT ?= 8
SMP_CPU_ID_BITS ?= 24
GLOBAL_DEFINES += \
WITH_SMP=1 \
SMP_MAX_CPUS=$(SMP_MAX_CPUS) \
SMP_CPU_CLUSTER_SHIFT=$(SMP_CPU_CLUSTER_SHIFT) \
SMP_CPU_ID_BITS=$(SMP_CPU_ID_BITS)
MODULE_SRCS += \
$(LOCAL_DIR)/arm/mp.c
else
GLOBAL_DEFINES += \
SMP_MAX_CPUS=1
endif
ifeq (true,$(call TOBOOL,$(WITH_NS_MAPPING)))
GLOBAL_DEFINES += \
WITH_ARCH_MMU_PICK_SPOT=1
endif
endif
ifeq ($(SUBARCH),arm-m)
MODULE_SRCS += \
$(LOCAL_DIR)/arm-m/arch.c \
$(LOCAL_DIR)/arm-m/cache.c \
$(LOCAL_DIR)/arm-m/exceptions.c \
$(LOCAL_DIR)/arm-m/spin_cycles.c \
$(LOCAL_DIR)/arm-m/start.c \
$(LOCAL_DIR)/arm-m/thread.c \
$(LOCAL_DIR)/arm-m/vectab.c
# we're building for small binaries
GLOBAL_DEFINES += \
ARM_ONLY_THUMB=1 \
ARCH_DEFAULT_STACK_SIZE=1024 \
SMP_MAX_CPUS=1
MODULE_DEPS += \
arch/arm/arm-m/CMSIS
ARCH_OPTFLAGS := -Os
WITH_LINKER_GC ?= 1
endif
# try to find toolchain
include $(LOCAL_DIR)/toolchain.mk
TOOLCHAIN_PREFIX := $(ARCH_$(ARCH)_TOOLCHAIN_PREFIX)
ARCH_COMPILEFLAGS += $(ARCH_$(ARCH)_COMPILEFLAGS)
ARCH_COMPILEFLAGS_NOFLOAT :=
ARCH_COMPILEFLAGS_FLOAT := $(ARCH_$(ARCH)_COMPILEFLAGS_FLOAT)
GLOBAL_COMPILEFLAGS += $(THUMBINTERWORK)
# set the max page size to something more reasonable (defaults to 64K or above)
ARCH_LDFLAGS += -z max-page-size=4096
# find the direct path to libgcc.a for our particular multilib variant
LIBGCC := $(shell $(TOOLCHAIN_PREFIX)gcc $(GLOBAL_COMPILEFLAGS) $(ARCH_COMPILEFLAGS) $(THUMBCFLAGS) -print-libgcc-file-name)
#$(info LIBGCC = $(LIBGCC))
#$(info LIBGCC COMPILEFLAGS = $(GLOBAL_COMPILEFLAGS) $(ARCH_COMPILEFLAGS) $(THUMBCFLAGS))
# make sure some bits were set up
MEMVARS_SET := 0
ifneq ($(MEMBASE),)
MEMVARS_SET := 1
endif
ifneq ($(MEMSIZE),)
MEMVARS_SET := 1
endif
ifeq ($(MEMVARS_SET),0)
$(error missing MEMBASE or MEMSIZE variable, please set in target rules.mk)
endif
GLOBAL_DEFINES += \
MEMBASE=$(MEMBASE) \
MEMSIZE=$(MEMSIZE)
# potentially generated files that should be cleaned out with clean make rule
GENERATED += \
$(BUILDDIR)/system-onesegment.ld \
$(BUILDDIR)/system-twosegment.ld
# rules for generating the linker scripts
$(BUILDDIR)/system-onesegment.ld: $(LOCAL_DIR)/system-onesegment.ld $(wildcard arch/*.ld) linkerscript.phony
@echo generating $@
@$(MKDIR)
$(NOECHO)sed "s/%MEMBASE%/$(MEMBASE)/;s/%MEMSIZE%/$(MEMSIZE)/;s/%KERNEL_BASE%/$(KERNEL_BASE)/;s/%KERNEL_LOAD_OFFSET%/$(KERNEL_LOAD_OFFSET)/" < $< > $@.tmp
@$(call TESTANDREPLACEFILE,$@.tmp,$@)
$(BUILDDIR)/system-twosegment.ld: $(LOCAL_DIR)/system-twosegment.ld $(wildcard arch/*.ld) linkerscript.phony
@echo generating $@
@$(MKDIR)
$(NOECHO)sed "s/%ROMBASE%/$(ROMBASE)/;s/%MEMBASE%/$(MEMBASE)/;s/%MEMSIZE%/$(MEMSIZE)/" < $< > $@.tmp
@$(call TESTANDREPLACEFILE,$@.tmp,$@)
linkerscript.phony:
.PHONY: linkerscript.phony
# arm specific script to try to guess stack usage
$(OUTELF).stack: LOCAL_DIR:=$(LOCAL_DIR)
$(OUTELF).stack: $(OUTELF)
$(NOECHO)echo generating stack usage $@
$(NOECHO)$(OBJDUMP) $(ARCH_OBJDUMP_FLAGS) -d $< | $(LOCAL_DIR)/stackusage | $(CPPFILT) | sort -n -k 1 -r > $@
EXTRA_BUILDDEPS += $(OUTELF).stack
GENERATED += $(OUTELF).stack
include make/module.mk
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