我正在尝试使用arm-none-eabi-gcc 2014 Q3编译和链接STM32F030F4的代码:
arm-none-eabi-gcc (GNU Tools for ARM Embedded Processors) 4.8.4 20140725 (release) [ARM/embedded-4_8-branch revision 213147]
代码由STM32CubeMX 4.6.0生成,并导入Code :: Blocks项目。这是一个示例编译器命令:
arm-none-eabi-gcc -mthumb -mlittle-endian -Wall -mcpu=cortex-m0 -ffunction-sections -fdata-sections -fno-exceptions --specs=rdimon.specs -DSTM32F030x6 -g -I../Drivers/CMSIS/Device/ST/STM32F0xx/Include -I../Drivers/CMSIS/Include -I../Drivers/STM32F0xx_HAL_Driver/Inc -I../Inc -c ../Drivers/CMSIS/Device/ST/STM32F0xx/Source/Templates/system_stm32f0xx.c -o obj/Debug/Drivers/CMSIS/Device/ST/STM32F0xx/Source/Templates/system_stm32f0xx.o
-DSTM32F030x6
没问题,因为它也用于STM32F0F4设备。所有其他源文件都使用相同的标志进行编译。 arm-none-eabi-size
报告system_stm32f0xx.o
的大小为非零,因此可以找到一些内容。
这是链接器命令,省略了许多obj文件但包含了所有标志:
arm-none-eabi-g++ -L"../TrueSTUDIO/test Configuration" -o bin/Debug/test.elf
obj/Debug/Drivers/CMSIS/Device/ST/STM32F0xx/Source/Templates/gcc/startup_stm32f030x6.o
obj/Debug/Drivers/CMSIS/Device/ST/STM32F0xx/Source/Templates/system_stm32f0xx.o
...
<many other object files ommitted>
...
-TSTM32F030F4_FLASH.ld -mcpu=cortex-m0 -mthumb -Wl,--gc-sections -lrdimon
编译器和链接器都不报告任何错误。 确实生成了请求的elf文件,但报告为空:
arm-none-eabi-size bin/Debug/test.elf
text data bss dec hex filename
0 0 0 0 0 bin/Debug/test.elf
我不知道为什么,因为我的main
确实做了一些事情:
int main(void)
{
HAL_Init();
SystemClock_Config();
GPIO_InitTypeDef init;
init.Mode = GPIO_MODE_OUTPUT_PP;
init.Pin = GPIO_PIN_1;
HAL_GPIO_Init(GPIOB, &init);
HAL_GPIO_WritePin(GPIOB, GPIO_PIN_1, GPIO_PIN_SET);
while (1)
{
}
}
在这里找到一个空精灵的原因是什么?我已成功将此工具链用于STM32F4项目。我第一次使用了cortex-M0,所以我可能会错过一些重要的旗帜,或者包括一个“破坏性的旗帜”。
根据要求:链接描述文件
ENTRY(Reset_Handler)
/* Highest address of the user mode stack */
_estack = 0x20000FFF; /* end of RAM */
/* Generate a link error if heap and stack don't fit into RAM */
_Min_Heap_Size = 0x200; /* required amount of heap */
_Min_Stack_Size = 0x400; /* required amount of stack */
/* Specify the memory areas */
MEMORY
{
FLASH (rx) : ORIGIN = 0x8000000, LENGTH = 16K
RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 4K
}
/* Define output sections */
SECTIONS
{
/* The startup code goes first into FLASH */
.isr_vector :
{
. = ALIGN(4);
KEEP(*(.isr_vector)) /* Startup code */
. = ALIGN(4);
} >FLASH
/* The program code and other data goes into FLASH */
.text :
{
. = ALIGN(4);
*(.text) /* .text sections (code) */
*(.text*) /* .text* sections (code) */
*(.glue_7) /* glue arm to thumb code */
*(.glue_7t) /* glue thumb to arm code */
*(.eh_frame)
KEEP (*(.init))
KEEP (*(.fini))
. = ALIGN(4);
_etext = .; /* define a global symbols at end of code */
} >FLASH
/* Constant data goes into FLASH */
.rodata :
{
. = ALIGN(4);
*(.rodata) /* .rodata sections (constants, strings, etc.) */
*(.rodata*) /* .rodata* sections (constants, strings, etc.) */
. = ALIGN(4);
} >FLASH
.ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH
.ARM : {
__exidx_start = .;
*(.ARM.exidx*)
__exidx_end = .;
} >FLASH
.preinit_array :
{
PROVIDE_HIDDEN (__preinit_array_start = .);
KEEP (*(.preinit_array*))
PROVIDE_HIDDEN (__preinit_array_end = .);
} >FLASH
.init_array :
{
PROVIDE_HIDDEN (__init_array_start = .);
KEEP (*(SORT(.init_array.*)))
KEEP (*(.init_array*))
PROVIDE_HIDDEN (__init_array_end = .);
} >FLASH
.fini_array :
{
PROVIDE_HIDDEN (__fini_array_start = .);
KEEP (*(SORT(.fini_array.*)))
KEEP (*(.fini_array*))
PROVIDE_HIDDEN (__fini_array_end = .);
} >FLASH
/* used by the startup to initialize data */
_sidata = LOADADDR(.data);
/* Initialized data sections goes into RAM, load LMA copy after code */
.data :
{
. = ALIGN(4);
_sdata = .; /* create a global symbol at data start */
*(.data) /* .data sections */
*(.data*) /* .data* sections */
. = ALIGN(4);
_edata = .; /* define a global symbol at data end */
} >RAM AT> FLASH
/* Uninitialized data section */
. = ALIGN(4);
.bss :
{
/* This is used by the startup in order to initialize the .bss secion */
_sbss = .; /* define a global symbol at bss start */
__bss_start__ = _sbss;
*(.bss)
*(.bss*)
*(COMMON)
. = ALIGN(4);
_ebss = .; /* define a global symbol at bss end */
__bss_end__ = _ebss;
} >RAM
/* User_heap_stack section, used to check that there is enough RAM left */
._user_heap_stack :
{
. = ALIGN(4);
PROVIDE ( end = . );
PROVIDE ( _end = . );
. = . + _Min_Heap_Size;
. = . + _Min_Stack_Size;
. = ALIGN(4);
} >RAM
/* Remove information from the standard libraries */
/DISCARD/ :
{
libc.a ( * )
libm.a ( * )
libgcc.a ( * )
}
.ARM.attributes 0 : { *(.ARM.attributes) }
}
解决
原来是文件系统错误或其他一些错误 - 链接器只能看到一个空文件。不过,在我的编辑器中它是正确的,并从编辑器中保存。我不知道这是怎么发生的,但NotLikeThat的评论指出了我正确的方向。