platform.mk (21074B)
1 # Hey Emacs, this is a -*- makefile -*- 2 ############################################################################## 3 # Architecture or project specific options 4 # 5 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 ($(USE_PROCESS_STACKSIZE),) 9 USE_PROCESS_STACKSIZE = 0x800 10 endif 11 12 # Stack size to the allocated to the Cortex-M main/exceptions stack. This 13 # stack is used for processing interrupts and exceptions. 14 ifeq ($(USE_EXCEPTIONS_STACKSIZE),) 15 USE_EXCEPTIONS_STACKSIZE = 0x400 16 endif 17 18 # 19 # Architecture or project specific options 20 ############################################################################## 21 22 ############################################################################## 23 # Project, sources and paths 24 # 25 26 # Imported source files and paths 27 OPT_OS = chibios 28 CHIBIOS = $(TOP_DIR)/lib/chibios 29 CHIBIOS_CONTRIB = $(TOP_DIR)/lib/chibios-contrib 30 31 # 32 # Startup, Port and Platform support selection 33 ############################################################################## 34 35 ifeq ($(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 49 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 59 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 69 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 = $(CHIBIOS)/os/common/startup/ARMCMx/compilers/GCC 77 endif 78 endif 79 endif 80 81 ifeq ("$(PLATFORM_NAME)","") 82 PLATFORM_NAME = platform 83 endif 84 85 # If no MCU port name was specified, use the family instead 86 ifeq ("$(MCU_PORT_NAME)","") 87 MCU_PORT_NAME = $(MCU_FAMILY) 88 endif 89 90 ifeq ("$(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 96 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 101 102 include $(STARTUP_MK) 103 include $(PORT_V) 104 include $(PLATFORM_MK) 105 106 # 107 # Board support selection. 108 ############################################################################## 109 110 BOARD_MK := 111 112 ifneq ("$(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 $(BOARD_PATH)/rules.mk 133 endif 134 endif 135 136 ifeq ("$(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 142 143 include $(BOARD_MK) 144 145 # 146 # Bootloader selection. 147 ############################################################################## 148 149 # Set bootloader address if supplied. 150 ifdef STM32_BOOTLOADER_ADDRESS 151 OPT_DEFS += -DSTM32_BOOTLOADER_ADDRESS=$(STM32_BOOTLOADER_ADDRESS) 152 endif 153 154 ifdef WB32_BOOTLOADER_ADDRESS 155 OPT_DEFS += -DWB32_BOOTLOADER_ADDRESS=$(WB32_BOOTLOADER_ADDRESS) 156 endif 157 158 ifdef AT32_BOOTLOADER_ADDRESS 159 OPT_DEFS += -DAT32_BOOTLOADER_ADDRESS=$(AT32_BOOTLOADER_ADDRESS) 160 endif 161 162 # 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 $(BOARD_PATH)/configs/bootloader_defs.h 185 endif 186 187 # 188 # ChibiOS config selection. 189 ############################################################################## 190 191 # Work out the config file directories 192 ifneq ("$(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 = $(TOP_DIR)/platforms/chibios/boards/common/configs 206 endif 207 208 # 209 # HAL config selection. 210 ############################################################################## 211 212 ifneq ("$(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 = $(TOP_DIR)/platforms/chibios/boards/common/configs 226 endif 227 228 # 229 # Linker script selection. 230 ############################################################################## 231 232 ifneq ("$(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 258 259 # 260 # Include ChibiOS makefiles. 261 ############################################################################## 262 263 # 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 271 272 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 287 288 # Ensure the ASM files are not subjected to LTO -- it'll strip out interrupt handlers otherwise. 289 QUANTUM_LIB_SRC += $(STARTUPASM) $(PORTASM) $(OSALASM) $(PLATFORMASM) 290 291 PLATFORM_SRC := $(patsubst $(TOP_DIR)/%,%,$(PLATFORM_SRC)) 292 293 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 $(COMMON_VPATH) 300 301 # 302 # QMK specific MCU family support selection. 303 ############################################################################## 304 ifneq ("$(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 311 312 # 313 # ChibiOS-Contrib 314 ############################################################################## 315 316 # 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 330 331 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) $(CHIBIOS_CONTRIB)/os/various 335 endif 336 337 # 338 # Project, sources and paths 339 ############################################################################## 340 341 ############################################################################## 342 # Injected configs 343 # 344 ifneq ("$(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 += $(BOARD_PATH)/configs/post_config.h 349 endif 350 351 ############################################################################## 352 # Compiler and Linker configuration 353 # 354 355 # Use defined stack sizes of the main thread in linker scripts 356 SHARED_LDSYMBOLS = -Wl,--defsym=__process_stack_size__=$(USE_PROCESS_STACKSIZE),--defsym=__main_stack_size__=$(USE_EXCEPTIONS_STACKSIZE) 357 358 # 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 365 366 LDSCRIPT_PATH := $(shell dirname "$(LDSCRIPT)") 367 368 # Shared Linker flags for all toolchains 369 SHARED_LDFLAGS = -T $(LDSCRIPT) \ 370 -L $(LDSCRIPT_PATH) \ 371 -Wl,--gc-sections \ 372 -nostartfiles 373 374 ifeq ($(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 $(call CATASTROPHIC_ERROR,Missing toolchain,No RISC-V toolchain found. Can't find riscv32-unknown-elf-gcc or riscv64-unknown-elf-gcc found in your systems PATH variable. Please install a valid toolchain and make it accessible!) 385 endif 386 endif 387 endif 388 389 # Default to compiling with picolibc for RISC-V targets if available, which 390 # is available by default on distributions based on Debian 11+. 391 ifeq ($(shell $(TOOLCHAIN)gcc --specs=picolibc.specs -E - 2>/dev/null >/dev/null </dev/null ; echo $$?),0) 392 # Toolchain specific Compiler flags Note that we still link with our own 393 # linker script by providing it via the -T flag in SHARED_LDFLAGS. 394 TOOLCHAIN_CFLAGS = --specs=picolibc.specs 395 396 # picolibc internally uses __heap_start and __heap_end instead of the 397 # defacto chibios linker script standard __heap_base__ and __heap_end__ 398 # therefore we introduce these symbols as an alias. 399 TOOLCHAIN_LDSYMBOLS = -Wl,--defsym=__heap_start=__heap_base__,--defsym=__heap_end=__heap_end__ 400 401 # Tell QMK that we are compiling with picolibc. 402 OPT_DEFS += -DUSE_PICOLIBC 403 endif 404 405 # MCU architecture flags 406 MCUFLAGS = -march=$(MCU_ARCH) \ 407 -mabi=$(MCU_ABI) \ 408 -mcmodel=$(MCU_CMODEL) \ 409 -mstrict-align 410 411 # Deal with different arch revisions and gcc renaming them 412 ifneq ($(shell echo 'int main() { asm("csrc 0x300,8"); return 0; }' | $(TOOLCHAIN)gcc $(MCUFLAGS) $(TOOLCHAIN_CFLAGS) -x c -o /dev/null - 2>/dev/null >/dev/null; echo $$?),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 $(call CATASTROPHIC_ERROR,Incompatible toolchain,No compatible RISC-V toolchain found. Can't work out correct architecture.) 419 endif 420 endif 421 else 422 # ARM toolchain specific configuration 423 TOOLCHAIN ?= arm-none-eabi- 424 425 # Toolchain specific Linker flags 426 TOOLCHAIN_LDFLAGS = -Wl,--no-wchar-size-warning \ 427 --specs=nano.specs 428 429 # MCU architecture flags 430 MCUFLAGS = -mcpu=$(MCU) \ 431 -mthumb -DTHUMB_PRESENT \ 432 -mno-thumb-interwork -DTHUMB_NO_INTERWORKING \ 433 -mno-unaligned-access 434 435 # Some ARM cores like the M4 and M7 have floating point units which can be enabled 436 USE_FPU ?= no 437 438 ifneq ($(USE_FPU),no) 439 OPT_DEFS += -DCORTEX_USE_FPU=TRUE 440 441 # Default is single precision floats 442 USE_FPU_OPT ?= -mfloat-abi=hard \ 443 -mfpu=fpv4-sp-d16 \ 444 -fsingle-precision-constant 445 446 MCUFLAGS += $(USE_FPU_OPT) 447 else 448 OPT_DEFS += -DCORTEX_USE_FPU=FALSE 449 endif 450 endif 451 452 # Extra config.h files for the platform 453 ifneq ("$(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 460 461 # Assembler flags 462 ASFLAGS += $(SHARED_ASFLAGS) $(TOOLCHAIN_ASFLAGS) 463 464 # C Compiler flags 465 CFLAGS += $(SHARED_CFLAGS) $(TOOLCHAIN_CFLAGS) 466 467 # C++ Compiler flags 468 CXXFLAGS += $(CFLAGS) $(SHARED_CXXFLAGS) $(TOOLCHAIN_CXXFLAGS) -fno-rtti 469 470 # Linker flags 471 LDFLAGS += $(SHARED_LDFLAGS) $(SHARED_LDSYMBOLS) $(TOOLCHAIN_LDFLAGS) $(TOOLCHAIN_LDSYMBOLS) $(MCUFLAGS) 472 473 # Tell QMK that we are hosting it on ChibiOS. 474 OPT_DEFS += -DPROTOCOL_CHIBIOS 475 476 # And what flavor of MCU 477 OPT_DEFS += -DMCU_$(MCU_FAMILY) 478 479 # ChibiOS supports synchronization primitives like a Mutex 480 OPT_DEFS += -DPLATFORM_SUPPORTS_SYNCHRONIZATION 481 482 # 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=1 484 485 # 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 = $(OBJCOPY) -O binary 495 496 # disable warning about RWX triggered by ChibiOS linker scripts 497 ifeq ("$(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 500 501 ############################################################################## 502 # Make targets 503 # 504 505 DEBUG = gdb 506 507 # List any extra directories to look for libraries here. 508 EXTRALIBDIRS = $(RULESPATH)/ld 509 510 bin: $(BUILD_DIR)/$(TARGET).bin sizeafter 511 $(COPY) $(BUILD_DIR)/$(TARGET).bin $(TARGET).bin;