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qmk_firmware/platforms/chibios/platform.mk
Stefan Kerkmann 5c2052fd47
[Core] RISC-V toolchain and picolibc fixes (#15109) 
* [Core] Fix RISC-V toolchain installation

The risc-v toolchain is only available on distributions based on Debian 11+
so we check for their availability before installing them.

* [Core] Fix heap symbols and syscalls for picolibc

picolibc internally uses __heap_start and __heap_end instead of the
defacto chibios linker script standard __heap_base__ and __heap_end__
therefore we introduce these symbols as an alias. Usually all memory
used within QMK is statically allocated, but some algorithms make usage
of malloc and friends.

Also the timeval struct is not defined by picolibc for syscalls, therefore it
is declared as stub.
2021-11-20 20:04:16 +00:00

440 lines
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Makefile
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# Hey Emacs, this is a -*- makefile -*-
##############################################################################
# Architecture or project specific options
#
# Stack size to be allocated to the Cortex-M process stack. This stack is
# the stack used by the main() thread.
ifeq ($(USE_PROCESS_STACKSIZE),)
USE_PROCESS_STACKSIZE = 0x800
endif
# Stack size to the allocated to the Cortex-M main/exceptions stack. This
# stack is used for processing interrupts and exceptions.
ifeq ($(USE_EXCEPTIONS_STACKSIZE),)
USE_EXCEPTIONS_STACKSIZE = 0x400
endif
#
# Architecture or project specific options
##############################################################################
##############################################################################
# Project, sources and paths
#
# Imported source files and paths
OPT_OS = chibios
CHIBIOS = $(TOP_DIR)/lib/chibios
CHIBIOS_CONTRIB = $(TOP_DIR)/lib/chibios-contrib
#
# Startup, Port and Platform support selection
##############################################################################
ifeq ($(strip $(MCU)), risc-v)
# RISC-V Support
# As of 7.4.2021 there is only one supported RISC-V platform in Chibios-Contrib,
# therefore all required settings are hard-coded
STARTUP_MK = $(CHIBIOS_CONTRIB)/os/common/startup/RISCV-ECLIC/compilers/GCC/mk/startup_$(MCU_STARTUP).mk
PORT_V = $(CHIBIOS_CONTRIB)/os/common/ports/RISCV-ECLIC/compilers/GCC/mk/port.mk
RULESPATH = $(CHIBIOS_CONTRIB)/os/common/startup/RISCV-ECLIC/compilers/GCC
PLATFORM_MK = $(CHIBIOS_CONTRIB)/os/hal/ports/GD/GD32VF103/platform.mk
else
# ARM Support
CHIBIOS_PORT ?=
ifeq ("$(CHIBIOS_PORT)","")
CHIBIOS_PORT = ARMv$(ARMV)-M
endif
# Startup files. Try a few different locations, for compability with old versions and
# for things hardware in the contrib repository
STARTUP_MK = $(CHIBIOS)/os/common/ports/ARMCMx/compilers/GCC/mk/startup_$(MCU_STARTUP).mk
ifeq ("$(wildcard $(STARTUP_MK))","")
STARTUP_MK = $(CHIBIOS)/os/common/startup/ARMCMx/compilers/GCC/mk/startup_$(MCU_STARTUP).mk
ifeq ("$(wildcard $(STARTUP_MK))","")
STARTUP_MK = $(CHIBIOS_CONTRIB)/os/common/startup/ARMCMx/compilers/GCC/mk/startup_$(MCU_STARTUP).mk
endif
endif
# Port files. Try a few different locations, for compability with old versions and
# for things hardware in the contrib repository
PORT_V = $(CHIBIOS)/os/common/ports/$(CHIBIOS_PORT)/compilers/GCC/mk/port.mk
ifeq ("$(wildcard $(PORT_V))","")
PORT_V = $(CHIBIOS)/os/rt/ports/ARMCMx/compilers/GCC/mk/port_v$(ARMV)m.mk
ifeq ("$(wildcard $(PORT_V))","")
PORT_V = $(CHIBIOS)/os/common/ports/ARMCMx/compilers/GCC/mk/port_v$(ARMV)m.mk
endif
endif
# Rules location. Try a few different locations, for compability with old versions and
# for things hardware in the contrib repository
RULESPATH = $(CHIBIOS)/os/common/ports/$(CHIBIOS_PORT)/compilers/GCC
ifeq ("$(wildcard $(RULESPATH)/rules.mk)","")
RULESPATH = $(CHIBIOS)/os/common/ports/ARMCMx/compilers/GCC
ifeq ("$(wildcard $(RULESPATH)/rules.mk)","")
RULESPATH = $(CHIBIOS)/os/common/startup/ARMCMx/compilers/GCC
endif
endif
endif
ifeq ("$(PLATFORM_NAME)","")
PLATFORM_NAME = platform
endif
ifeq ("$(wildcard $(PLATFORM_MK))","")
PLATFORM_MK = $(CHIBIOS)/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)/$(PLATFORM_NAME).mk
ifeq ("$(wildcard $(PLATFORM_MK))","")
PLATFORM_MK = $(CHIBIOS_CONTRIB)/os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES)/$(PLATFORM_NAME).mk
endif
endif
include $(STARTUP_MK)
include $(PORT_V)
include $(PLATFORM_MK)
#
# Board support selection.
##############################################################################
BOARD_MK :=
ifneq ("$(wildcard $(KEYBOARD_PATH_5)/boards/$(BOARD)/board.mk)","")
BOARD_PATH = $(KEYBOARD_PATH_5)
BOARD_MK += $(KEYBOARD_PATH_5)/boards/$(BOARD)/board.mk
else ifneq ("$(wildcard $(KEYBOARD_PATH_4)/boards/$(BOARD)/board.mk)","")
BOARD_PATH = $(KEYBOARD_PATH_4)
BOARD_MK += $(KEYBOARD_PATH_4)/boards/$(BOARD)/board.mk
else ifneq ("$(wildcard $(KEYBOARD_PATH_3)/boards/$(BOARD)/board.mk)","")
BOARD_PATH = $(KEYBOARD_PATH_3)
BOARD_MK += $(KEYBOARD_PATH_3)/boards/$(BOARD)/board.mk
else ifneq ("$(wildcard $(KEYBOARD_PATH_2)/boards/$(BOARD)/board.mk)","")
BOARD_PATH = $(KEYBOARD_PATH_2)
BOARD_MK += $(KEYBOARD_PATH_2)/boards/$(BOARD)/board.mk
else ifneq ("$(wildcard $(KEYBOARD_PATH_1)/boards/$(BOARD)/board.mk)","")
BOARD_PATH = $(KEYBOARD_PATH_1)
BOARD_MK += $(KEYBOARD_PATH_1)/boards/$(BOARD)/board.mk
else ifneq ("$(wildcard $(TOP_DIR)/platforms/chibios/boards/$(BOARD)/board/board.mk)","")
BOARD_PATH = $(TOP_DIR)/platforms/chibios/boards/$(BOARD)
BOARD_MK += $(TOP_DIR)/platforms/chibios/boards/$(BOARD)/board/board.mk
KEYBOARD_PATHS += $(BOARD_PATH)/configs
ifneq ("$(wildcard $(BOARD_PATH)/rules.mk)","")
include $(BOARD_PATH)/rules.mk
endif
endif
ifeq ("$(wildcard $(BOARD_MK))","")
BOARD_MK = $(CHIBIOS)/os/hal/boards/$(BOARD)/board.mk
ifeq ("$(wildcard $(BOARD_MK))","")
BOARD_MK = $(CHIBIOS_CONTRIB)/os/hal/boards/$(BOARD)/board.mk
endif
endif
include $(BOARD_MK)
#
# Bootloader selection.
##############################################################################
# Set bootloader address if supplied.
ifdef STM32_BOOTLOADER_ADDRESS
OPT_DEFS += -DSTM32_BOOTLOADER_ADDRESS=$(STM32_BOOTLOADER_ADDRESS)
endif
# Work out if we need to set up the include for the bootloader definitions
ifneq ("$(wildcard $(KEYBOARD_PATH_5)/bootloader_defs.h)","")
OPT_DEFS += -include $(KEYBOARD_PATH_5)/bootloader_defs.h
else ifneq ("$(wildcard $(KEYBOARD_PATH_5)/boards/$(BOARD)/bootloader_defs.h)","")
OPT_DEFS += -include $(KEYBOARD_PATH_5)/boards/$(BOARD)/bootloader_defs.h
else ifneq ("$(wildcard $(KEYBOARD_PATH_4)/bootloader_defs.h)","")
OPT_DEFS += -include $(KEYBOARD_PATH_4)/bootloader_defs.h
else ifneq ("$(wildcard $(KEYBOARD_PATH_4)/boards/$(BOARD)/bootloader_defs.h)","")
OPT_DEFS += -include $(KEYBOARD_PATH_4)/boards/$(BOARD)/bootloader_defs.h
else ifneq ("$(wildcard $(KEYBOARD_PATH_3)/bootloader_defs.h)","")
OPT_DEFS += -include $(KEYBOARD_PATH_3)/bootloader_defs.h
else ifneq ("$(wildcard $(KEYBOARD_PATH_3)/boards/$(BOARD)/bootloader_defs.h)","")
OPT_DEFS += -include $(KEYBOARD_PATH_3)/boards/$(BOARD)/bootloader_defs.h
else ifneq ("$(wildcard $(KEYBOARD_PATH_2)/bootloader_defs.h)","")
OPT_DEFS += -include $(KEYBOARD_PATH_2)/bootloader_defs.h
else ifneq ("$(wildcard $(KEYBOARD_PATH_2)/boards/$(BOARD)/bootloader_defs.h)","")
OPT_DEFS += -include $(KEYBOARD_PATH_2)/boards/$(BOARD)/bootloader_defs.h
else ifneq ("$(wildcard $(KEYBOARD_PATH_1)/bootloader_defs.h)","")
OPT_DEFS += -include $(KEYBOARD_PATH_1)/bootloader_defs.h
else ifneq ("$(wildcard $(KEYBOARD_PATH_1)/boards/$(BOARD)/bootloader_defs.h)","")
OPT_DEFS += -include $(KEYBOARD_PATH_1)/boards/$(BOARD)/bootloader_defs.h
else ifneq ("$(wildcard $(BOARD_PATH)/configs/bootloader_defs.h)","")
OPT_DEFS += -include $(BOARD_PATH)/configs/bootloader_defs.h
endif
#
# ChibiOS config selection.
##############################################################################
# Work out the config file directories
ifneq ("$(wildcard $(KEYBOARD_PATH_5)/chconf.h)","")
CHCONFDIR = $(KEYBOARD_PATH_5)
else ifneq ("$(wildcard $(KEYBOARD_PATH_4)/chconf.h)","")
CHCONFDIR = $(KEYBOARD_PATH_4)
else ifneq ("$(wildcard $(KEYBOARD_PATH_3)/chconf.h)","")
CHCONFDIR = $(KEYBOARD_PATH_3)
else ifneq ("$(wildcard $(KEYBOARD_PATH_2)/chconf.h)","")
CHCONFDIR = $(KEYBOARD_PATH_2)
else ifneq ("$(wildcard $(KEYBOARD_PATH_1)/chconf.h)","")
CHCONFDIR = $(KEYBOARD_PATH_1)
else ifneq ("$(wildcard $(TOP_DIR)/platforms/chibios/boards/$(BOARD)/configs/chconf.h)","")
CHCONFDIR = $(TOP_DIR)/platforms/chibios/boards/$(BOARD)/configs
else ifneq ("$(wildcard $(TOP_DIR)/platforms/boards/chibios/common/configs/chconf.h)","")
CHCONFDIR = $(TOP_DIR)/platforms/chibios/boards/common/configs
endif
#
# HAL config selection.
##############################################################################
ifneq ("$(wildcard $(KEYBOARD_PATH_5)/halconf.h)","")
HALCONFDIR = $(KEYBOARD_PATH_5)
else ifneq ("$(wildcard $(KEYBOARD_PATH_4)/halconf.h)","")
HALCONFDIR = $(KEYBOARD_PATH_4)
else ifneq ("$(wildcard $(KEYBOARD_PATH_3)/halconf.h)","")
HALCONFDIR = $(KEYBOARD_PATH_3)
else ifneq ("$(wildcard $(KEYBOARD_PATH_2)/halconf.h)","")
HALCONFDIR = $(KEYBOARD_PATH_2)
else ifneq ("$(wildcard $(KEYBOARD_PATH_1)/halconf.h)","")
HALCONFDIR = $(KEYBOARD_PATH_1)
else ifneq ("$(wildcard $(TOP_DIR)/platforms/chibios/boards/$(BOARD)/configs/halconf.h)","")
HALCONFDIR = $(TOP_DIR)/platforms/chibios/boards/$(BOARD)/configs
else ifneq ("$(wildcard $(TOP_DIR)/platforms/chibios/boards/common/configs/halconf.h)","")
HALCONFDIR = $(TOP_DIR)/platforms/chibios/boards/common/configs
endif
#
# Linker script selection.
##############################################################################
ifneq ("$(wildcard $(KEYBOARD_PATH_5)/ld/$(MCU_LDSCRIPT).ld)","")
LDSCRIPT = $(KEYBOARD_PATH_5)/ld/$(MCU_LDSCRIPT).ld
else ifneq ("$(wildcard $(KEYBOARD_PATH_4)/ld/$(MCU_LDSCRIPT).ld)","")
LDSCRIPT = $(KEYBOARD_PATH_4)/ld/$(MCU_LDSCRIPT).ld
else ifneq ("$(wildcard $(KEYBOARD_PATH_3)/ld/$(MCU_LDSCRIPT).ld)","")
LDSCRIPT = $(KEYBOARD_PATH_3)/ld/$(MCU_LDSCRIPT).ld
else ifneq ("$(wildcard $(KEYBOARD_PATH_2)/ld/$(MCU_LDSCRIPT).ld)","")
LDSCRIPT = $(KEYBOARD_PATH_2)/ld/$(MCU_LDSCRIPT).ld
else ifneq ("$(wildcard $(KEYBOARD_PATH_1)/ld/$(MCU_LDSCRIPT).ld)","")
LDSCRIPT = $(KEYBOARD_PATH_1)/ld/$(MCU_LDSCRIPT).ld
else ifneq ("$(wildcard $(TOP_DIR)/platforms/chibios/boards/$(BOARD)/ld/$(MCU_LDSCRIPT).ld)","")
LDFLAGS += -L$(TOP_DIR)/platforms/chibios/boards/$(BOARD)/ld
LDSCRIPT = $(TOP_DIR)/platforms/chibios/boards/$(BOARD)/ld/$(MCU_LDSCRIPT).ld
else ifneq ("$(wildcard $(TOP_DIR)/platforms/chibios/boards/common/ld/$(MCU_LDSCRIPT).ld)","")
LDSCRIPT = $(TOP_DIR)/platforms/chibios/boards/common/ld/$(MCU_LDSCRIPT).ld
else ifneq ("$(wildcard $(STARTUPLD_CONTRIB)/$(MCU_LDSCRIPT).ld)","")
LDSCRIPT = $(STARTUPLD_CONTRIB)/$(MCU_LDSCRIPT).ld
USE_CHIBIOS_CONTRIB = yes
else
LDSCRIPT = $(STARTUPLD)/$(MCU_LDSCRIPT).ld
endif
#
# Include ChibiOS makefiles.
##############################################################################
# HAL-OSAL files (optional).
include $(CHIBIOS)/os/hal/hal.mk
-include $(CHIBIOS)/os/hal/osal/rt/osal.mk # ChibiOS <= 19.x
-include $(CHIBIOS)/os/hal/osal/rt-nil/osal.mk # ChibiOS >= 20.x
# RTOS files (optional).
include $(CHIBIOS)/os/rt/rt.mk
# Other files (optional).
include $(CHIBIOS)/os/hal/lib/streams/streams.mk
PLATFORM_SRC = \
$(STARTUPSRC) \
$(KERNSRC) \
$(PORTSRC) \
$(OSALSRC) \
$(HALSRC) \
$(PLATFORMSRC) \
$(BOARDSRC) \
$(STREAMSSRC) \
$(CHIBIOS)/os/various/syscalls.c \
$(PLATFORM_COMMON_DIR)/syscall-fallbacks.c \
$(PLATFORM_COMMON_DIR)/wait.c
# Ensure the ASM files are not subjected to LTO -- it'll strip out interrupt handlers otherwise.
QUANTUM_LIB_SRC += $(STARTUPASM) $(PORTASM) $(OSALASM) $(PLATFORMASM)
PLATFORM_SRC := $(patsubst $(TOP_DIR)/%,%,$(PLATFORM_SRC))
EXTRAINCDIRS += $(CHIBIOS)/os/license $(CHIBIOS)/os/oslib/include \
$(TOP_DIR)/platforms/chibios/boards/$(BOARD)/configs \
$(TOP_DIR)/platforms/chibios/boards/common/configs \
$(HALCONFDIR) $(CHCONFDIR) \
$(STARTUPINC) $(KERNINC) $(PORTINC) $(OSALINC) \
$(HALINC) $(PLATFORMINC) $(BOARDINC) $(TESTINC) \
$(STREAMSINC) $(CHIBIOS)/os/various $(COMMON_VPATH)
#
# ChibiOS-Contrib
##############################################################################
# Work out if we're using ChibiOS-Contrib by checking if halconf_community.h exists
ifneq ("$(wildcard $(KEYBOARD_PATH_5)/halconf_community.h)","")
USE_CHIBIOS_CONTRIB = yes
else ifneq ("$(wildcard $(KEYBOARD_PATH_4)/halconf_community.h)","")
USE_CHIBIOS_CONTRIB = yes
else ifneq ("$(wildcard $(KEYBOARD_PATH_3)/halconf_community.h)","")
USE_CHIBIOS_CONTRIB = yes
else ifneq ("$(wildcard $(KEYBOARD_PATH_2)/halconf_community.h)","")
USE_CHIBIOS_CONTRIB = yes
else ifneq ("$(wildcard $(KEYBOARD_PATH_1)/halconf_community.h)","")
USE_CHIBIOS_CONTRIB = yes
else ifneq ("$(wildcard $(TOP_DIR)/platforms/chibios/boards/$(BOARD)/configs/halconf_community.h)","")
USE_CHIBIOS_CONTRIB = yes
endif
ifeq ($(strip $(USE_CHIBIOS_CONTRIB)),yes)
include $(CHIBIOS_CONTRIB)/os/hal/hal.mk
PLATFORM_SRC += $(PLATFORMSRC_CONTRIB) $(HALSRC_CONTRIB)
EXTRAINCDIRS += $(PLATFORMINC_CONTRIB) $(HALINC_CONTRIB) $(CHIBIOS_CONTRIB)/os/various
endif
#
# Project, sources and paths
##############################################################################
##############################################################################
# Injected configs
#
ifneq ("$(wildcard $(BOARD_PATH)/configs/config.h)","")
CONFIG_H += $(BOARD_PATH)/configs/config.h
endif
ifneq ("$(wildcard $(BOARD_PATH)/configs/post_config.h)","")
POST_CONFIG_H += $(BOARD_PATH)/configs/post_config.h
endif
##############################################################################
# Compiler and Linker configuration
#
# Use defined stack sizes of the main thread in linker scripts
SHARED_LDSYMBOLS = -Wl,--defsym=__process_stack_size__=$(USE_PROCESS_STACKSIZE),--defsym=__main_stack_size__=$(USE_EXCEPTIONS_STACKSIZE)
# Shared Compiler flags for all toolchains
SHARED_CFLAGS = -fomit-frame-pointer \
-ffunction-sections \
-fdata-sections \
-fno-common \
-fshort-wchar
# Shared Linker flags for all toolchains
SHARED_LDFLAGS = -T $(LDSCRIPT) \
-Wl,--gc-sections \
-nostartfiles
ifeq ($(strip $(MCU)), risc-v)
# RISC-V toolchain specific configuration
# Find suitable GCC compiler
ifeq ($(strip $(TOOLCHAIN)),)
ifneq ($(shell which riscv32-unknown-elf-gcc 2>/dev/null),)
TOOLCHAIN = riscv32-unknown-elf-
else
ifneq ($(shell which riscv64-unknown-elf-gcc 2>/dev/null),)
TOOLCHAIN = riscv64-unknown-elf-
else
$(error "No RISC-V toolchain found. Can't find riscv32-unknown-elf-gcc or riscv64-unknown-elf-gcc found in your systems PATH variable. Please install a valid toolchain and make it accessible!")
endif
endif
endif
# Default to compiling with picolibc for RISC-V targets if available, which
# is available by default on distributions based on Debian 11+.
ifeq ($(shell $(TOOLCHAIN)gcc --specs=picolibc.specs -E - 2>/dev/null >/dev/null </dev/null ; echo $$?),0)
# Toolchain specific Compiler flags Note that we still link with our own
# linker script by providing it via the -T flag in SHARED_LDFLAGS.
TOOLCHAIN_CFLAGS = --specs=picolibc.specs
# picolibc internally uses __heap_start and __heap_end instead of the
# defacto chibios linker script standard __heap_base__ and __heap_end__
# therefore we introduce these symbols as an alias.
TOOLCHAIN_LDSYMBOLS = -Wl,--defsym=__heap_start=__heap_base__,--defsym=__heap_end=__heap_end__
# Tell QMK that we are compiling with picolibc.
OPT_DEFS += -DUSE_PICOLIBC
endif
# MCU architecture flags
MCUFLAGS = -march=$(MCU_ARCH) \
-mabi=$(MCU_ABI) \
-mcmodel=$(MCU_CMODEL) \
-mstrict-align
else
# ARM toolchain specific configuration
TOOLCHAIN ?= arm-none-eabi-
# Toolchain specific Linker flags
TOOLCHAIN_LDFLAGS = -Wl,--no-wchar-size-warning \
--specs=nano.specs
# MCU architecture flags
MCUFLAGS = -mcpu=$(MCU) \
-mthumb -DTHUMB_PRESENT \
-mno-thumb-interwork -DTHUMB_NO_INTERWORKING \
-mno-unaligned-access
# Some ARM cores like the M4 and M7 have floating point units which can be enabled
USE_FPU ?= no
ifneq ($(USE_FPU),no)
OPT_DEFS += -DCORTEX_USE_FPU=TRUE
# Default is single precision floats
USE_FPU_OPT ?= -mfloat-abi=hard \
-mfpu=fpv4-sp-d16 \
-fsingle-precision-constant
MCUFLAGS += $(USE_FPU_OPT)
else
OPT_DEFS += -DCORTEX_USE_FPU=FALSE
endif
endif
# Assembler flags
ASFLAGS += $(SHARED_ASFLAGS) $(TOOLCHAIN_ASFLAGS)
# C Compiler flags
CFLAGS += $(SHARED_CFLAGS) $(TOOLCHAIN_CFLAGS)
# C++ Compiler flags
CXXFLAGS += $(CFLAGS) $(SHARED_CXXFLAGS) $(TOOLCHAIN_CXXFLAGS) -fno-rtti
# Linker flags
LDFLAGS += $(SHARED_LDFLAGS) $(SHARED_LDSYMBOLS) $(TOOLCHAIN_LDFLAGS) $(TOOLCHAIN_LDSYMBOLS) $(MCUFLAGS)
# Tell QMK that we are hosting it on ChibiOS.
OPT_DEFS += -DPROTOCOL_CHIBIOS
# Workaround to stop ChibiOS from complaining about new GCC -- it's been fixed for 7/8/9 already
OPT_DEFS += -DPORT_IGNORE_GCC_VERSION_CHECK=1
# Construct GCC toolchain
CC = $(CC_PREFIX) $(TOOLCHAIN)gcc
OBJCOPY = $(TOOLCHAIN)objcopy
OBJDUMP = $(TOOLCHAIN)objdump
SIZE = $(TOOLCHAIN)size
AR = $(TOOLCHAIN)ar
NM = $(TOOLCHAIN)nm
HEX = $(OBJCOPY) -O $(FORMAT)
EEP =
BIN = $(OBJCOPY) -O binary
##############################################################################
# Make targets
#
DEBUG = gdb
# List any extra directories to look for libraries here.
EXTRALIBDIRS = $(RULESPATH)/ld
bin: $(BUILD_DIR)/$(TARGET).bin sizeafter
$(COPY) $(BUILD_DIR)/$(TARGET).bin $(TARGET).bin;
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