Codespace verbose xylophone p54w7rxr75jfrw54

.gdb_history

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+ni
+ni
+ni
+q
+ni
+ni
+ni
+ni
+ni
+ni
+q

.vscode/settings.json

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+{
+    "files.associations": {
+        "task.h": "c"
+    }
+}

port/.gdb_history

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+ni
+si
+si
+si
+si
+ni
+c
+break start
+c
+n
+q
+q
+c
+break xPortSysTickHandler
+c
+q
+break xPortSysTickHandler
+c
+q
+break xPortSysTickHandler
+c
+c
+q
+n
+n
+n
+n
+n
+n
+n
+n
+n
+n
+n
+n
+n
+n
+n
+n
+n
+n
+n
+n
+n
+n
+n
+n
+ni
+ni
+ni
+ni
+ni
+ni
+ni
+break xPortSysTickHandler
+c
+break prvPortStartFirstTask
+c
+break default
+n
+n
+q

port/FreeRTOSConfig.h

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+#ifndef _CONFIG_H
+#define __CONFIG_H__
+
+#define configTICK_TYPE_WIDTH_IN_BITS               TICK_TYPE_WIDTH_32_BITS
+#define configMAX_SYSCALL_INTERRUPT_PRIORITY        191  // 0xBF
+#define configKERNEL_INTERRUPT_PRIORITY             255  // 0xFF
+
+#define configMINIMAL_STACK_SIZE                    0x100
+#define configMAX_PRIORITIES                        5
+#define configUSE_PREEMPTION                        1
+#define configUSE_IDLE_HOOK                         0
+#define configUSE_TICK_HOOK                         0
+#define configTOTAL_HEAP_SIZE                       0x1000
+#define configCPU_CLOCK_HZ                          80000000UL
+#define configTICK_RATE_HZ                          10
+#define configASSERT(x) if((x)==0){taskDISABLE_INTERRUPTS(); for(;;);}
+
+#endif

port/Makefile

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+PROJ = main
+CPU ?= cortex-m3
+BOARD ?= stm32vldiscovery
+
+FREERTOS_PATH = ../FreeRTOS-Kernel
+
+
+
+OBJ = boot.o \
+	  start.o \
+	  portFunctions.o \
+	  $(FREERTOS_PATH)/tasks.o \
+	  $(FREERTOS_PATH)/list.o \
+	  $(FREERTOS_PATH)/portable/MemMang/heap_4.o  \
+	  $(FREERTOS_PATH)/portable/GCC/ARM_CM3/port.o \
+
+INC = -I$(FREERTOS_PATH)/portable/GCC/ARM_CM3/	\
+	  -I$(FREERTOS_PATH)/include/	\
+	  -I.	\
+
+.PHONY: all
+all: $(PROJ).elf
+
+# Assemble .S file into .o
+%.o: %.S
+	arm-none-eabi-as -mthumb -mcpu=$(CPU) -g -o $@ $<
+
+%.o: %.c
+	arm-none-eabi-gcc $(INC) -mthumb -mcpu=$(CPU) -g -c $^ -o $@
+
+# Link object into ELF
+$(PROJ).elf: $(OBJ)
+	arm-none-eabi-ld -Tmap.ld $^ -o $@
+
+# Disassemble
+	arm-none-eabi-objdump -D -S $@ > $@.lst
+	arm-none-eabi-readelf -a $@ > $@.debug
+
+# QEMU launch
+qemu:
+	qemu-system-arm -S -M $(BOARD) -cpu $(CPU) -nographic -kernel $(PROJ).elf -gdb tcp::1234
+
+# GDB remote debug
+gdb:
+	gdb-multiarch -q $(PROJ).elf -ex "target remote localhost:1234"
+
+clean:
+	rm -rf *.o *.elf *.lst *.debug

port/boot.S

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+.section .vectors
+vector_table:
+    .word __stack
+    .word reset_handler
+    .word default
+    .word default
+    .word default
+    .word default
+    .word default
+    .word default
+    .word default
+    .word default
+    .word default
+    .word vPortSVCHandler
+    .word default
+    .word default
+    .word xPortPendSVHandler
+    .word xPortSysTickHandler
+    .zero 400
+
+.section .text
+    .align 2
+    .thumb_func
+    .type default, %function
+    .type reset_handler, %function
+
+reset_handler:
+    // Copy initialized data from FLASH to RAM
+    ldr r0, =_sidata      // source: flash
+    ldr r1, =_sdata       // destination: ram
+    ldr r2, =_edata       // end of data
+
+copy_data:
+    cmp r1, r2
+    bcs zero_bss          // if r1 >= r2, jump to zero_bss
+    ldr r3, [r0]
+    str r3, [r1]
+    add r0, r0, #4
+    add r1, r1, #4
+    b copy_data
+
+zero_bss:
+    ldr r0, =_sbss
+    ldr r1, =_ebss
+
+zero_loop:
+    cmp r0, r1
+    bcs call_main
+    movs r2, #0
+    str r2, [r0]
+    add r0, r0, #4
+    b zero_loop
+
+call_main:
+    bl start
+    b .
+
+default:
+    b .