mirror of
https://github.com/FreeRTOS/FreeRTOS-Kernel.git
synced 2025-10-26 23:36:32 -04:00
eb97c5d325
* [RISC-V-Qemu-virt_GCC Demo] Add picolibc support Add minimal picolibc support: * Use --specs=picolibc.specs to direct gcc at picolibc * Use -DPICOLIBC_INTEGER_PRINTF_SCANF to enable smaller printf implementation * Enable configUSE_PICOLIBC_TLS for thread local storage * Add TLS section to linker script Signed-off-by: Keith Packard <keithpac@amazon.com> * [CORTEX_MPU_M3_MPS2_QEMU_GCC Demo] Add picolibc support Add minimal picolibc support to this demo * Use --specs=picolibc.specs to direct gcc at picolibc * Use -DPICOLIBC_INTEGER_PRINTF_SCANF to enable smaller printf implementation * Enable configUSE_PICOLIBC_TLS for thread local storage * Add TLS section to linker script * Replace newlib syscall hooks with picolibc ones Signed-off-by: Keith Packard <keithpac@amazon.com> --------- Signed-off-by: Keith Packard <keithpac@amazon.com> Co-authored-by: Keith Packard <keithpac@amazon.com>
87 lines
2.5 KiB
Makefile
87 lines
2.5 KiB
Makefile
CROSS = riscv64-unknown-elf-
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CC = $(CROSS)gcc
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OBJCOPY = $(CROSS)objcopy
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ARCH = $(CROSS)ar
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# Generate GCC_VERSION in number format
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GCC_VERSION = $(shell $(CC) --version | grep ^$(CC) | sed 's/^.* //g' | awk -F. '{ printf("%d%02d%02d"), $$1, $$2, $$3 }')
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GCC_VERSION_NEED_ZICSR = "110100"
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BUILD_DIR = build
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RTOS_SOURCE_DIR = $(abspath ../../Source)
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DEMO_SOURCE_DIR = $(abspath ../Common/Minimal)
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CPPFLAGS = \
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-D__riscv_float_abi_soft \
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-DportasmHANDLE_INTERRUPT=handle_trap \
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-I . -I ../Common/include \
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-I $(RTOS_SOURCE_DIR)/include \
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-I $(RTOS_SOURCE_DIR)/portable/GCC/RISC-V \
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-I $(RTOS_SOURCE_DIR)/portable/GCC/RISC-V/chip_specific_extensions/RV32I_CLINT_no_extensions
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CFLAGS = -mabi=ilp32 -mcmodel=medany \
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-Wall \
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-fmessage-length=0 \
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-ffunction-sections \
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-fdata-sections \
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-fno-builtin-printf
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ifeq ($(shell test $(GCC_VERSION) -ge $(GCC_VERSION_NEED_ZICSR) && echo true),true)
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CFLAGS += -march=rv32imac_zicsr
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else
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CFLAGS += -march=rv32imac
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endif
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LDFLAGS = -nostartfiles -Tfake_rom.lds \
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-march=rv32imac -mabi=ilp32 -mcmodel=medany \
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-Xlinker --gc-sections \
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-Xlinker --defsym=__stack_size=300 \
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-Xlinker -Map=$(BUILD_DIR)/RTOSDemo.map
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ifeq ($(DEBUG), 1)
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CFLAGS += -Og -ggdb3
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else
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CFLAGS += -O2
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endif
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ifeq ($(PICOLIBC), 1)
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CFLAGS += --specs=picolibc.specs -DPICOLIBC_INTEGER_PRINTF_SCANF
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LDFLAGS += --specs=picolibc.specs -DPICOLIBC_INTEGER_PRINTF_SCANF
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endif
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SRCS = main.c main_blinky.c riscv-virt.c ns16550.c \
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$(DEMO_SOURCE_DIR)/EventGroupsDemo.c \
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$(DEMO_SOURCE_DIR)/TaskNotify.c \
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$(DEMO_SOURCE_DIR)/TimerDemo.c \
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$(DEMO_SOURCE_DIR)/blocktim.c \
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$(DEMO_SOURCE_DIR)/dynamic.c \
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$(DEMO_SOURCE_DIR)/recmutex.c \
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$(RTOS_SOURCE_DIR)/event_groups.c \
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$(RTOS_SOURCE_DIR)/list.c \
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$(RTOS_SOURCE_DIR)/queue.c \
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$(RTOS_SOURCE_DIR)/stream_buffer.c \
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$(RTOS_SOURCE_DIR)/tasks.c \
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$(RTOS_SOURCE_DIR)/timers.c \
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$(RTOS_SOURCE_DIR)/portable/MemMang/heap_4.c \
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$(RTOS_SOURCE_DIR)/portable/GCC/RISC-V/port.c
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ASMS = start.S vector.S\
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$(RTOS_SOURCE_DIR)/portable/GCC/RISC-V/portASM.S
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OBJS = $(SRCS:%.c=$(BUILD_DIR)/%.o) $(ASMS:%.S=$(BUILD_DIR)/%.o)
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DEPS = $(SRCS:%.c=$(BUILD_DIR)/%.d) $(ASMS:%.S=$(BUILD_DIR)/%.d)
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$(BUILD_DIR)/RTOSDemo.axf: $(OBJS) fake_rom.lds Makefile
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$(CC) $(LDFLAGS) $(OBJS) -o $@
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$(BUILD_DIR)/%.o: %.c Makefile
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@mkdir -p $(@D)
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$(CC) $(CPPFLAGS) $(CFLAGS) -MMD -MP -c $< -o $@
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$(BUILD_DIR)/%.o: %.S Makefile
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@mkdir -p $(@D)
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$(CC) $(CPPFLAGS) $(CFLAGS) -MMD -MP -c $< -o $@
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clean:
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rm -rf $(BUILD_DIR)
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-include $(DEPS)
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