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qmk_firmware

custom branch of QMK firmware git clone https://anongit.hacktivis.me/git/qmk_firmware.git

platform.mk (21074B)

    

  1. # Hey Emacs, this is a -*- makefile -*-
  2. ##############################################################################
  3. # Architecture or project specific options
  4. #
  6. # Stack size to be allocated to the Cortex-M process stack. This stack is
  7. # the stack used by the main() thread.
  8. ifeq ($(USE_PROCESS_STACKSIZE),)
  9.   USE_PROCESS_STACKSIZE = 0x800
  10. endif
  12. # Stack size to the allocated to the Cortex-M main/exceptions stack. This
  13. # stack is used for processing interrupts and exceptions.
  14. ifeq ($(USE_EXCEPTIONS_STACKSIZE),)
  15.   USE_EXCEPTIONS_STACKSIZE = 0x400
  16. endif
  18. #
  19. # Architecture or project specific options
  20. ##############################################################################
  22. ##############################################################################
  23. # Project, sources and paths
  24. #
  26. # Imported source files and paths
  27. OPT_OS = chibios
  28. CHIBIOS = $(TOP_DIR)/lib/chibios
  29. CHIBIOS_CONTRIB = $(TOP_DIR)/lib/chibios-contrib
  31. #
  32. # Startup, Port and Platform support selection
  33. ##############################################################################
  35. ifeq ($(strip $(MCU)), risc-v)
  36.     # RISC-V Support
  37.     # As of 7.4.2021 there is only one supported RISC-V platform in Chibios-Contrib,
  38.     # therefore all required settings are hard-coded
  39.     USE_CHIBIOS_CONTRIB = yes
  40.     STARTUP_MK = $(CHIBIOS_CONTRIB)/os/common/startup/RISCV-ECLIC/compilers/GCC/mk/startup_$(MCU_STARTUP).mk
  41.     PORT_V = $(CHIBIOS_CONTRIB)/os/common/ports/RISCV-ECLIC/compilers/GCC/mk/port.mk
  42.     RULESPATH = $(CHIBIOS_CONTRIB)/os/common/startup/RISCV-ECLIC/compilers/GCC
  43. else
  44.     # ARM Support
  45.     CHIBIOS_PORT ?=
  46.     ifeq ("$(CHIBIOS_PORT)","")
  47.         CHIBIOS_PORT = ARMv$(ARMV)-M
  48.     endif
  50.     # Startup files. Try a few different locations, for compability with old versions and
  51.     # for things hardware in the contrib repository
  52.     STARTUP_MK = $(CHIBIOS)/os/common/ports/ARMCMx/compilers/GCC/mk/startup_$(MCU_STARTUP).mk
  53.     ifeq ("$(wildcard $(STARTUP_MK))","")
  54.         STARTUP_MK = $(CHIBIOS)/os/common/startup/ARMCMx/compilers/GCC/mk/startup_$(MCU_STARTUP).mk
  55.         ifeq ("$(wildcard $(STARTUP_MK))","")
  56.             STARTUP_MK = $(CHIBIOS_CONTRIB)/os/common/startup/ARMCMx/compilers/GCC/mk/startup_$(MCU_STARTUP).mk
  57.         endif
  58.     endif
  60.     # Port files. Try a few different locations, for compability with old versions and
  61.     # for things hardware in the contrib repository
  62.     PORT_V = $(CHIBIOS)/os/common/ports/$(CHIBIOS_PORT)/compilers/GCC/mk/port.mk
  63.     ifeq ("$(wildcard $(PORT_V))","")
  64.         PORT_V = $(CHIBIOS)/os/rt/ports/ARMCMx/compilers/GCC/mk/port_v$(ARMV)m.mk
  65.         ifeq ("$(wildcard $(PORT_V))","")
  66.             PORT_V = $(CHIBIOS)/os/common/ports/ARMCMx/compilers/GCC/mk/port_v$(ARMV)m.mk
  67.         endif
  68.     endif
  70.     # Rules location. Try a few different locations, for compability with old versions and
  71.     # for things hardware in the contrib repository
  72.     RULESPATH = $(CHIBIOS)/os/common/ports/$(CHIBIOS_PORT)/compilers/GCC
  73.     ifeq ("$(wildcard $(RULESPATH)/rules.mk)","")
  74.         RULESPATH = $(CHIBIOS)/os/common/ports/ARMCMx/compilers/GCC
  75.         ifeq ("$(wildcard $(RULESPATH)/rules.mk)","")
  76.             RULESPATH = $(CHIBIOS)/os/common/startup/ARMCMx/compilers/GCC
  77.         endif
  78.     endif
  79. endif
  81. ifeq ("$(PLATFORM_NAME)","")
  82.     PLATFORM_NAME = platform
  83. endif
  85. # If no MCU port name was specified, use the family instead
  86. ifeq ("$(MCU_PORT_NAME)","")
  87.     MCU_PORT_NAME = $(MCU_FAMILY)
  88. endif
  90. ifeq ("$(wildcard $(PLATFORM_MK))","")
  91.     PLATFORM_MK = $(CHIBIOS_CONTRIB)/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)/$(PLATFORM_NAME).mk
  92.     ifeq ("$(wildcard $(PLATFORM_MK))","")
  93.         PLATFORM_MK = $(CHIBIOS)/os/hal/ports/$(MCU_PORT_NAME)/$(MCU_SERIES)/$(PLATFORM_NAME).mk
  94.     endif
  95. endif
  97. # If no MCU architecture specified, use the MCU instead (allows for mcu_selection.mk to swap to cortex-m0 etc.)
  98. ifeq ("$(MCU_ARCH)","")
  99.     MCU_ARCH = $(MCU)
  100. endif
  102. include $(STARTUP_MK)
  103. include $(PORT_V)
  104. include $(PLATFORM_MK)
  106. #
  107. # Board support selection.
  108. ##############################################################################
  110. BOARD_MK :=
  112. ifneq ("$(wildcard $(KEYBOARD_PATH_5)/boards/$(BOARD)/board.mk)","")
  113.     BOARD_PATH = $(KEYBOARD_PATH_5)
  114.     BOARD_MK += $(KEYBOARD_PATH_5)/boards/$(BOARD)/board.mk
  115. else ifneq ("$(wildcard $(KEYBOARD_PATH_4)/boards/$(BOARD)/board.mk)","")
  116.     BOARD_PATH = $(KEYBOARD_PATH_4)
  117.     BOARD_MK += $(KEYBOARD_PATH_4)/boards/$(BOARD)/board.mk
  118. else ifneq ("$(wildcard $(KEYBOARD_PATH_3)/boards/$(BOARD)/board.mk)","")
  119.     BOARD_PATH = $(KEYBOARD_PATH_3)
  120.     BOARD_MK += $(KEYBOARD_PATH_3)/boards/$(BOARD)/board.mk
  121. else ifneq ("$(wildcard $(KEYBOARD_PATH_2)/boards/$(BOARD)/board.mk)","")
  122.     BOARD_PATH = $(KEYBOARD_PATH_2)
  123.     BOARD_MK += $(KEYBOARD_PATH_2)/boards/$(BOARD)/board.mk
  124. else ifneq ("$(wildcard $(KEYBOARD_PATH_1)/boards/$(BOARD)/board.mk)","")
  125.     BOARD_PATH = $(KEYBOARD_PATH_1)
  126.     BOARD_MK += $(KEYBOARD_PATH_1)/boards/$(BOARD)/board.mk
  127. else ifneq ("$(wildcard $(TOP_DIR)/platforms/chibios/boards/$(BOARD)/board/board.mk)","")
  128.     BOARD_PATH = $(TOP_DIR)/platforms/chibios/boards/$(BOARD)
  129.     BOARD_MK += $(TOP_DIR)/platforms/chibios/boards/$(BOARD)/board/board.mk
  130.     KEYBOARD_PATHS += $(BOARD_PATH)/configs
  131.     ifneq ("$(wildcard $(BOARD_PATH)/rules.mk)","")
  132.         include $(BOARD_PATH)/rules.mk
  133.     endif
  134. endif
  136. ifeq ("$(wildcard $(BOARD_MK))","")
  137.     BOARD_MK = $(CHIBIOS)/os/hal/boards/$(BOARD)/board.mk
  138.     ifeq ("$(wildcard $(BOARD_MK))","")
  139.         BOARD_MK = $(CHIBIOS_CONTRIB)/os/hal/boards/$(BOARD)/board.mk
  140.     endif
  141. endif
  143. include $(BOARD_MK)
  145. #
  146. # Bootloader selection.
  147. ##############################################################################
  149. # Set bootloader address if supplied.
  150. ifdef STM32_BOOTLOADER_ADDRESS
  151.     OPT_DEFS += -DSTM32_BOOTLOADER_ADDRESS=$(STM32_BOOTLOADER_ADDRESS)
  152. endif
  154. ifdef WB32_BOOTLOADER_ADDRESS
  155.     OPT_DEFS += -DWB32_BOOTLOADER_ADDRESS=$(WB32_BOOTLOADER_ADDRESS)
  156. endif
  158. ifdef AT32_BOOTLOADER_ADDRESS
  159.     OPT_DEFS += -DAT32_BOOTLOADER_ADDRESS=$(AT32_BOOTLOADER_ADDRESS)
  160. endif
  162. # Work out if we need to set up the include for the bootloader definitions
  163. ifneq ("$(wildcard $(KEYBOARD_PATH_5)/bootloader_defs.h)","")
  164.     OPT_DEFS += -include $(KEYBOARD_PATH_5)/bootloader_defs.h
  165. else ifneq ("$(wildcard $(KEYBOARD_PATH_5)/boards/$(BOARD)/bootloader_defs.h)","")
  166.     OPT_DEFS += -include $(KEYBOARD_PATH_5)/boards/$(BOARD)/bootloader_defs.h
  167. else ifneq ("$(wildcard $(KEYBOARD_PATH_4)/bootloader_defs.h)","")
  168.     OPT_DEFS += -include $(KEYBOARD_PATH_4)/bootloader_defs.h
  169. else ifneq ("$(wildcard $(KEYBOARD_PATH_4)/boards/$(BOARD)/bootloader_defs.h)","")
  170.     OPT_DEFS += -include $(KEYBOARD_PATH_4)/boards/$(BOARD)/bootloader_defs.h
  171. else ifneq ("$(wildcard $(KEYBOARD_PATH_3)/bootloader_defs.h)","")
  172.     OPT_DEFS += -include $(KEYBOARD_PATH_3)/bootloader_defs.h
  173. else ifneq ("$(wildcard $(KEYBOARD_PATH_3)/boards/$(BOARD)/bootloader_defs.h)","")
  174.     OPT_DEFS += -include $(KEYBOARD_PATH_3)/boards/$(BOARD)/bootloader_defs.h
  175. else ifneq ("$(wildcard $(KEYBOARD_PATH_2)/bootloader_defs.h)","")
  176.     OPT_DEFS += -include $(KEYBOARD_PATH_2)/bootloader_defs.h
  177. else ifneq ("$(wildcard $(KEYBOARD_PATH_2)/boards/$(BOARD)/bootloader_defs.h)","")
  178.     OPT_DEFS += -include $(KEYBOARD_PATH_2)/boards/$(BOARD)/bootloader_defs.h
  179. else ifneq ("$(wildcard $(KEYBOARD_PATH_1)/bootloader_defs.h)","")
  180.     OPT_DEFS += -include $(KEYBOARD_PATH_1)/bootloader_defs.h
  181. else ifneq ("$(wildcard $(KEYBOARD_PATH_1)/boards/$(BOARD)/bootloader_defs.h)","")
  182.     OPT_DEFS += -include $(KEYBOARD_PATH_1)/boards/$(BOARD)/bootloader_defs.h
  183. else ifneq ("$(wildcard $(BOARD_PATH)/configs/bootloader_defs.h)","")
  184.     OPT_DEFS += -include $(BOARD_PATH)/configs/bootloader_defs.h
  185. endif
  187. #
  188. # ChibiOS config selection.
  189. ##############################################################################
  191. # Work out the config file directories
  192. ifneq ("$(wildcard $(KEYBOARD_PATH_5)/chconf.h)","")
  193.     CHCONFDIR = $(KEYBOARD_PATH_5)
  194. else ifneq ("$(wildcard $(KEYBOARD_PATH_4)/chconf.h)","")
  195.     CHCONFDIR = $(KEYBOARD_PATH_4)
  196. else ifneq ("$(wildcard $(KEYBOARD_PATH_3)/chconf.h)","")
  197.     CHCONFDIR = $(KEYBOARD_PATH_3)
  198. else ifneq ("$(wildcard $(KEYBOARD_PATH_2)/chconf.h)","")
  199.     CHCONFDIR = $(KEYBOARD_PATH_2)
  200. else ifneq ("$(wildcard $(KEYBOARD_PATH_1)/chconf.h)","")
  201.     CHCONFDIR = $(KEYBOARD_PATH_1)
  202. else ifneq ("$(wildcard $(TOP_DIR)/platforms/chibios/boards/$(BOARD)/configs/chconf.h)","")
  203.     CHCONFDIR = $(TOP_DIR)/platforms/chibios/boards/$(BOARD)/configs
  204. else ifneq ("$(wildcard $(TOP_DIR)/platforms/boards/chibios/common/configs/chconf.h)","")
  205.     CHCONFDIR = $(TOP_DIR)/platforms/chibios/boards/common/configs
  206. endif
  208. #
  209. # HAL config selection.
  210. ##############################################################################
  212. ifneq ("$(wildcard $(KEYBOARD_PATH_5)/halconf.h)","")
  213.     HALCONFDIR = $(KEYBOARD_PATH_5)
  214. else ifneq ("$(wildcard $(KEYBOARD_PATH_4)/halconf.h)","")
  215.     HALCONFDIR = $(KEYBOARD_PATH_4)
  216. else ifneq ("$(wildcard $(KEYBOARD_PATH_3)/halconf.h)","")
  217.     HALCONFDIR = $(KEYBOARD_PATH_3)
  218. else ifneq ("$(wildcard $(KEYBOARD_PATH_2)/halconf.h)","")
  219.     HALCONFDIR = $(KEYBOARD_PATH_2)
  220. else ifneq ("$(wildcard $(KEYBOARD_PATH_1)/halconf.h)","")
  221.     HALCONFDIR = $(KEYBOARD_PATH_1)
  222. else ifneq ("$(wildcard $(TOP_DIR)/platforms/chibios/boards/$(BOARD)/configs/halconf.h)","")
  223.     HALCONFDIR = $(TOP_DIR)/platforms/chibios/boards/$(BOARD)/configs
  224. else ifneq ("$(wildcard $(TOP_DIR)/platforms/chibios/boards/common/configs/halconf.h)","")
  225.     HALCONFDIR = $(TOP_DIR)/platforms/chibios/boards/common/configs
  226. endif
  228. #
  229. # Linker script selection.
  230. ##############################################################################
  232. ifneq ("$(wildcard $(KEYBOARD_PATH_5)/ld/$(MCU_LDSCRIPT).ld)","")
  233.     LDSCRIPT = $(KEYBOARD_PATH_5)/ld/$(MCU_LDSCRIPT).ld
  234. else ifneq ("$(wildcard $(KEYBOARD_PATH_4)/ld/$(MCU_LDSCRIPT).ld)","")
  235.     LDSCRIPT = $(KEYBOARD_PATH_4)/ld/$(MCU_LDSCRIPT).ld
  236. else ifneq ("$(wildcard $(KEYBOARD_PATH_3)/ld/$(MCU_LDSCRIPT).ld)","")
  237.     LDSCRIPT = $(KEYBOARD_PATH_3)/ld/$(MCU_LDSCRIPT).ld
  238. else ifneq ("$(wildcard $(KEYBOARD_PATH_2)/ld/$(MCU_LDSCRIPT).ld)","")
  239.     LDSCRIPT = $(KEYBOARD_PATH_2)/ld/$(MCU_LDSCRIPT).ld
  240. else ifneq ("$(wildcard $(KEYBOARD_PATH_1)/ld/$(MCU_LDSCRIPT).ld)","")
  241.     LDSCRIPT = $(KEYBOARD_PATH_1)/ld/$(MCU_LDSCRIPT).ld
  242. else ifneq ("$(wildcard $(TOP_DIR)/platforms/chibios/boards/$(BOARD)/ld/$(MCU_LDSCRIPT)_$(BOOTLOADER).ld)","")
  243.     LDFLAGS += -L$(TOP_DIR)/platforms/chibios/boards/$(BOARD)/ld
  244.     LDSCRIPT = $(TOP_DIR)/platforms/chibios/boards/$(BOARD)/ld/$(MCU_LDSCRIPT)_$(BOOTLOADER).ld
  245. else ifneq ("$(wildcard $(TOP_DIR)/platforms/chibios/boards/common/ld/$(MCU_LDSCRIPT)_$(BOOTLOADER).ld)","")
  246.     LDSCRIPT = $(TOP_DIR)/platforms/chibios/boards/common/ld/$(MCU_LDSCRIPT)_$(BOOTLOADER).ld
  247. else ifneq ("$(wildcard $(TOP_DIR)/platforms/chibios/boards/$(BOARD)/ld/$(MCU_LDSCRIPT).ld)","")
  248.     LDFLAGS += -L$(TOP_DIR)/platforms/chibios/boards/$(BOARD)/ld
  249.     LDSCRIPT = $(TOP_DIR)/platforms/chibios/boards/$(BOARD)/ld/$(MCU_LDSCRIPT).ld
  250. else ifneq ("$(wildcard $(TOP_DIR)/platforms/chibios/boards/common/ld/$(MCU_LDSCRIPT).ld)","")
  251.     LDSCRIPT = $(TOP_DIR)/platforms/chibios/boards/common/ld/$(MCU_LDSCRIPT).ld
  252. else ifneq ("$(wildcard $(STARTUPLD_CONTRIB)/$(MCU_LDSCRIPT).ld)","")
  253.     LDSCRIPT = $(STARTUPLD_CONTRIB)/$(MCU_LDSCRIPT).ld
  254.     USE_CHIBIOS_CONTRIB = yes
  255. else
  256.     LDSCRIPT = $(STARTUPLD)/$(MCU_LDSCRIPT).ld
  257. endif
  259. #
  260. # Include ChibiOS makefiles.
  261. ##############################################################################
  263. # HAL-OSAL files (optional).
  264. include $(CHIBIOS)/os/hal/hal.mk
  265. include $(CHIBIOS)/os/oslib/oslib.mk
  266. include $(CHIBIOS)/os/hal/osal/rt-nil/osal.mk
  267. # RTOS files (optional).
  268. include $(CHIBIOS)/os/rt/rt.mk
  269. # Other files (optional).
  270. include $(CHIBIOS)/os/hal/lib/streams/streams.mk
  272. PLATFORM_SRC = \
  273.         $(STARTUPSRC) \
  274.         $(KERNSRC) \
  275.         $(PORTSRC) \
  276.         $(OSALSRC) \
  277.         $(OSLIBSRC) \
  278.         $(HALSRC) \
  279.         $(PLATFORMSRC) \
  280.         $(BOARDSRC) \
  281.         $(STREAMSSRC) \
  282.         $(CHIBIOS)/os/various/syscalls.c \
  283.         $(PLATFORM_COMMON_DIR)/syscall-fallbacks.c \
  284.         $(PLATFORM_COMMON_DIR)/wait.c \
  285.         $(PLATFORM_COMMON_DIR)/synchronization_util.c \
  286.         $(PLATFORM_COMMON_DIR)/interrupt_handlers.c
  288. # Ensure the ASM files are not subjected to LTO -- it'll strip out interrupt handlers otherwise.
  289. QUANTUM_LIB_SRC += $(STARTUPASM) $(PORTASM) $(OSALASM) $(PLATFORMASM)
  291. PLATFORM_SRC := $(patsubst $(TOP_DIR)/%,%,$(PLATFORM_SRC))
  293. EXTRAINCDIRS += $(CHIBIOS)/os/license \
  294.          $(TOP_DIR)/platforms/chibios/boards/$(BOARD)/configs \
  295.          $(TOP_DIR)/platforms/chibios/boards/common/configs \
  296.          $(HALCONFDIR) $(CHCONFDIR) \
  297.          $(STARTUPINC) $(KERNINC) $(PORTINC) $(OSALINC) $(OSLIBINC) \
  298.          $(HALINC) $(PLATFORMINC) $(BOARDINC) $(TESTINC) \
  299.          $(STREAMSINC) $(CHIBIOS)/os/various $(COMMON_VPATH)
  301. #
  302. # QMK specific MCU family support selection.
  303. ##############################################################################
  304. ifneq ("$(wildcard $(PLATFORM_PATH)/$(PLATFORM_KEY)/vendors/$(MCU_FAMILY)/$(MCU_SERIES).mk)","")
  305.     # Either by MCU series e.g. STM32/STM32F1xx.mk or...
  306.     include $(PLATFORM_PATH)/$(PLATFORM_KEY)/vendors/$(MCU_FAMILY)/$(MCU_SERIES).mk
  307. else ifneq ("$(wildcard $(PLATFORM_PATH)/$(PLATFORM_KEY)/vendors/$(MCU_FAMILY)/$(MCU_FAMILY).mk)","")
  308.     # By MCU family e.g. STM32/STM32.mk
  309.     include $(PLATFORM_PATH)/$(PLATFORM_KEY)/vendors/$(MCU_FAMILY)/$(MCU_FAMILY).mk
  310. endif
  312. #
  313. # ChibiOS-Contrib
  314. ##############################################################################
  316. # Work out if we're using ChibiOS-Contrib by checking if halconf_community.h exists
  317. ifneq ("$(wildcard $(KEYBOARD_PATH_5)/halconf_community.h)","")
  318.     USE_CHIBIOS_CONTRIB = yes
  319. else ifneq ("$(wildcard $(KEYBOARD_PATH_4)/halconf_community.h)","")
  320.     USE_CHIBIOS_CONTRIB = yes
  321. else ifneq ("$(wildcard $(KEYBOARD_PATH_3)/halconf_community.h)","")
  322.     USE_CHIBIOS_CONTRIB = yes
  323. else ifneq ("$(wildcard $(KEYBOARD_PATH_2)/halconf_community.h)","")
  324.     USE_CHIBIOS_CONTRIB = yes
  325. else ifneq ("$(wildcard $(KEYBOARD_PATH_1)/halconf_community.h)","")
  326.     USE_CHIBIOS_CONTRIB = yes
  327. else ifneq ("$(wildcard $(TOP_DIR)/platforms/chibios/boards/$(BOARD)/configs/halconf_community.h)","")
  328.     USE_CHIBIOS_CONTRIB = yes
  329. endif
  331. ifeq ($(strip $(USE_CHIBIOS_CONTRIB)),yes)
  332.     include $(CHIBIOS_CONTRIB)/os/hal/hal.mk
  333.     PLATFORM_SRC += $(PLATFORMSRC_CONTRIB) $(HALSRC_CONTRIB)
  334.     EXTRAINCDIRS += $(PLATFORMINC_CONTRIB) $(HALINC_CONTRIB) $(CHIBIOS_CONTRIB)/os/various
  335. endif
  337. #
  338. # Project, sources and paths
  339. ##############################################################################
  341. ##############################################################################
  342. # Injected configs
  343. #
  344. ifneq ("$(wildcard $(BOARD_PATH)/configs/config.h)","")
  345.     CONFIG_H += $(BOARD_PATH)/configs/config.h
  346. endif
  347. ifneq ("$(wildcard $(BOARD_PATH)/configs/post_config.h)","")
  348.     POST_CONFIG_H += $(BOARD_PATH)/configs/post_config.h
  349. endif
  351. ##############################################################################
  352. # Compiler and Linker configuration
  353. #
  355. # Use defined stack sizes of the main thread in linker scripts
  356. SHARED_LDSYMBOLS = -Wl,--defsym=__process_stack_size__=$(USE_PROCESS_STACKSIZE),--defsym=__main_stack_size__=$(USE_EXCEPTIONS_STACKSIZE)
  358. # Shared Compiler flags for all toolchains
  359. SHARED_CFLAGS = -fomit-frame-pointer \
  360.                 -ffunction-sections \
  361.                 -fdata-sections \
  362.                 -fno-common \
  363.                 -fshort-wchar \
  364.                 -fno-builtin-printf
  366. LDSCRIPT_PATH := $(shell dirname "$(LDSCRIPT)")
  368. # Shared Linker flags for all toolchains
  369. SHARED_LDFLAGS = -T $(LDSCRIPT) \
  370.                  -L $(LDSCRIPT_PATH) \
  371.                  -Wl,--gc-sections \
  372.                  -nostartfiles
  374. ifeq ($(strip $(MCU)), risc-v)
  375.     # RISC-V toolchain specific configuration
  376.     # Find suitable GCC compiler
  377.     ifeq ($(strip $(TOOLCHAIN)),)
  378.         ifneq ($(shell which riscv32-unknown-elf-gcc 2>/dev/null),)
  379.             TOOLCHAIN = riscv32-unknown-elf-
  380.         else
  381.             ifneq ($(shell which riscv64-unknown-elf-gcc 2>/dev/null),)
  382.                 TOOLCHAIN = riscv64-unknown-elf-
  383.             else
  384.                 $(call CATASTROPHIC_ERROR,Missing toolchain,No RISC-V toolchain found. Can't find riscv32-unknown-elf-gcc or riscv64-unknown-elf-gcc found in your systems PATH variable. Please install a valid toolchain and make it accessible!)
  385.             endif
  386.         endif
  387.     endif
  389.     # Default to compiling with picolibc for RISC-V targets if available, which
  390.     # is available by default on distributions based on Debian 11+.
  391.     ifeq ($(shell $(TOOLCHAIN)gcc --specs=picolibc.specs -E - 2>/dev/null >/dev/null </dev/null ; echo $$?),0)
  392.         # Toolchain specific Compiler flags Note that we still link with our own
  393.         # linker script by providing it via the -T flag in SHARED_LDFLAGS.
  394.         TOOLCHAIN_CFLAGS = --specs=picolibc.specs
  396.         # picolibc internally uses __heap_start and __heap_end instead of the
  397.         # defacto chibios linker script standard __heap_base__ and __heap_end__
  398.         # therefore we introduce these symbols as an alias.
  399.         TOOLCHAIN_LDSYMBOLS = -Wl,--defsym=__heap_start=__heap_base__,--defsym=__heap_end=__heap_end__
  401.         # Tell QMK that we are compiling with picolibc.
  402.         OPT_DEFS += -DUSE_PICOLIBC
  403.     endif
  405.     # MCU architecture flags
  406.     MCUFLAGS = -march=$(MCU_ARCH) \
  407.                -mabi=$(MCU_ABI) \
  408.                -mcmodel=$(MCU_CMODEL) \
  409.                -mstrict-align
  411.     # Deal with different arch revisions and gcc renaming them
  412.     ifneq ($(shell echo 'int main() { asm("csrc 0x300,8"); return 0; }' | $(TOOLCHAIN)gcc $(MCUFLAGS) $(TOOLCHAIN_CFLAGS) -x c -o /dev/null - 2>/dev/null >/dev/null; echo $$?),0)
  413.         MCUFLAGS = -march=$(MCU_ARCH)_zicsr \
  414.                    -mabi=$(MCU_ABI) \
  415.                    -mcmodel=$(MCU_CMODEL) \
  416.                    -mstrict-align
  417.         ifneq ($(shell echo 'int main() { asm("csrc 0x300,8"); return 0; }' | $(TOOLCHAIN)gcc $(MCUFLAGS) $(TOOLCHAIN_CFLAGS) -x c -o /dev/null - 2>/dev/null >/dev/null; echo $$?),0)
  418.             $(call CATASTROPHIC_ERROR,Incompatible toolchain,No compatible RISC-V toolchain found. Can't work out correct architecture.)
  419.         endif
  420.     endif
  421. else
  422.     # ARM toolchain specific configuration
  423.     TOOLCHAIN ?= arm-none-eabi-
  425.     # Toolchain specific Linker flags
  426.     TOOLCHAIN_LDFLAGS = -Wl,--no-wchar-size-warning \
  427.                         --specs=nano.specs
  429.     # MCU architecture flags
  430.     MCUFLAGS = -mcpu=$(MCU) \
  431.                -mthumb -DTHUMB_PRESENT \
  432.                -mno-thumb-interwork -DTHUMB_NO_INTERWORKING \
  433.                -mno-unaligned-access
  435.     # Some ARM cores like the M4 and M7 have floating point units which can be enabled
  436.     USE_FPU ?= no
  438.     ifneq ($(USE_FPU),no)
  439.         OPT_DEFS += -DCORTEX_USE_FPU=TRUE
  441.         # Default is single precision floats
  442.         USE_FPU_OPT ?= -mfloat-abi=hard \
  443.                        -mfpu=fpv4-sp-d16 \
  444.                        -fsingle-precision-constant
  446.         MCUFLAGS += $(USE_FPU_OPT)
  447.     else
  448.         OPT_DEFS += -DCORTEX_USE_FPU=FALSE
  449.     endif
  450. endif
  452. # Extra config.h files for the platform
  453. ifneq ("$(wildcard $(PLATFORM_COMMON_DIR)/vendors/$(MCU_FAMILY)/$(MCU_SERIES)/config.h)","")
  454.     CONFIG_H += $(PLATFORM_COMMON_DIR)/vendors/$(MCU_FAMILY)/$(MCU_SERIES)/config.h
  455. endif
  456. ifneq ("$(wildcard $(PLATFORM_COMMON_DIR)/vendors/$(MCU_FAMILY)/config.h)","")
  457.     CONFIG_H += $(PLATFORM_COMMON_DIR)/vendors/$(MCU_FAMILY)/config.h
  458. endif
  459. CONFIG_H += $(PLATFORM_COMMON_DIR)/config.h
  461. # Assembler flags
  462. ASFLAGS  += $(SHARED_ASFLAGS) $(TOOLCHAIN_ASFLAGS)
  464. # C Compiler flags
  465. CFLAGS   += $(SHARED_CFLAGS) $(TOOLCHAIN_CFLAGS)
  467. # C++ Compiler flags
  468. CXXFLAGS += $(CFLAGS) $(SHARED_CXXFLAGS) $(TOOLCHAIN_CXXFLAGS) -fno-rtti
  470. # Linker flags
  471. LDFLAGS  += $(SHARED_LDFLAGS) $(SHARED_LDSYMBOLS) $(TOOLCHAIN_LDFLAGS) $(TOOLCHAIN_LDSYMBOLS) $(MCUFLAGS)
  473. # Tell QMK that we are hosting it on ChibiOS.
  474. OPT_DEFS += -DPROTOCOL_CHIBIOS
  476. # And what flavor of MCU
  477. OPT_DEFS += -DMCU_$(MCU_FAMILY)
  479. # ChibiOS supports synchronization primitives like a Mutex
  480. OPT_DEFS += -DPLATFORM_SUPPORTS_SYNCHRONIZATION
  482. # Workaround to stop ChibiOS from complaining about new GCC -- it's been fixed for 7/8/9 already
  483. OPT_DEFS += -DPORT_IGNORE_GCC_VERSION_CHECK=1
  485. # Construct GCC toolchain
  486. CC      = $(CC_PREFIX) $(TOOLCHAIN)gcc
  487. OBJCOPY = $(TOOLCHAIN)objcopy
  488. OBJDUMP = $(TOOLCHAIN)objdump
  489. SIZE    = $(TOOLCHAIN)size
  490. AR      = $(TOOLCHAIN)ar
  491. NM      = $(TOOLCHAIN)nm
  492. HEX     = $(OBJCOPY) -O $(FORMAT)
  493. EEP     =
  494. BIN     = $(OBJCOPY) -O binary
  496. # disable warning about RWX triggered by ChibiOS linker scripts
  497. ifeq ("$(shell echo "int main(){}" | $(CC) -shared -Wl,--no-warn-rwx-segments -x c - -o /dev/null 2>&1)", "")
  498. 	SHARED_LDFLAGS += -Wl,--no-warn-rwx-segments
  499. endif
  501. ##############################################################################
  502. # Make targets
  503. #
  505. DEBUG = gdb
  507. # List any extra directories to look for libraries here.
  508. EXTRALIBDIRS = $(RULESPATH)/ld
  510. bin: $(BUILD_DIR)/$(TARGET).bin sizeafter
  511. 	$(COPY) $(BUILD_DIR)/$(TARGET).bin $(TARGET).bin;