GCC下的编译错误

leavic

我是用slickedit+yagarto做编译环境的，
编译命令如下：
.C文件：arm-none-eabi-gcc -c -fdata-sections -ffunction-sections -fno-builtin -O0 -mcpu=cortex-m4 -march=armv7e-m -mthumb -g -ggdb -Wall %i %defd -o "%bd%n.o"  "%f"
.S文件：arm-none-eabi-gcc -x assembler-with-cpp -Wall -mcpu=cortex-m4 -mthumb -g -ggdb -o "%bd%n.o" "%f"
Link命令：arm-none-eabi-gcc -T"%rpLinker\stm32_flash.ld" -Xlinker --gc-sections -mcpu=cortex-m3 -mthumb -static -g -ggdb -o "%rpBin/%rn.elf" %f %libs
Include目录：
(原文件名:图像 1.png)

文件结构见附件。
点击此处下载 ourdev_718908B6MENS.txt(文件大小:5K) (原文件名:list.txt)

用的stm32f40x的BSP，没修改，编译newlib的时候报错：
newlib\libc.c: In function 'libc_system_init':
newlib\libc.c:18:2: warning: implicit declaration of function 'rt_console_init' [-Wimplicit-function-declaration]
newlib\libc.c:21:2: warning: implicit declaration of function 'open' [-Wimplicit-function-declaration]
newlib\libc.c:10:6: warning: variable 'fd' set but not used [-Wunused-but-set-variable]
math.c
newlib\math.c: In function 'ln':
newlib\math.c:240:1: warning: control reaches end of non-void function [-Wreturn-type]
syscalls.c
newlib\syscalls.c: In function '_close_r':
newlib\syscalls.c:11:2: warning: implicit declaration of function 'close' [-Wimplicit-function-declaration]
newlib\syscalls.c: In function '_lseek_r':
newlib\syscalls.c:83:2: warning: implicit declaration of function 'lseek' [-Wimplicit-function-declaration]
newlib\syscalls.c: In function '_mkdir_r':
newlib\syscalls.c:92:2: warning: implicit declaration of function 'mkdir' [-Wimplicit-function-declaration]
newlib\syscalls.c: In function '_open_r':
newlib\syscalls.c:101:2: warning: implicit declaration of function 'open' [-Wimplicit-function-declaration]
newlib\syscalls.c: In function '_read_r':
newlib\syscalls.c:110:2: warning: implicit declaration of function 'read' [-Wimplicit-function-declaration]
newlib\syscalls.c: In function '_rename_r':
newlib\syscalls.c:119:2: warning: implicit declaration of function 'rename' [-Wimplicit-function-declaration]
newlib\syscalls.c: In function '_stat_r':
newlib\syscalls.c:135:2: warning: implicit declaration of function 'stat' [-Wimplicit-function-declaration]
newlib\syscalls.c: In function '_unlink_r':
newlib\syscalls.c:152:2: warning: implicit declaration of function 'unlink' [-Wimplicit-function-declaration]
newlib\syscalls.c: In function '_write_r':
newlib\syscalls.c:169:2: warning: implicit declaration of function 'write' [-Wimplicit-function-declaration]

编译Finsh的时候有个warning：
Finsh\src\shell.c:279:4: warning: implicit declaration of function 'memcpy' [-Wimplicit-function-declaration]

我的编译参数上有什么问题吗？

如果不添加newlib部分，直接编译全部都可以过，但最后link的时候报错：
Debug\shell.o: In function `finsh_system_init':
C:\Users\Administrator\Desktop\STM32F4_RTT/Finsh\src/shell.c:484: undefined reference to `__fsymtab_start'
C:\Users\Administrator\Desktop\STM32F4_RTT/Finsh\src/shell.c:484: undefined reference to `__fsymtab_start'
C:\Users\Administrator\Desktop\STM32F4_RTT/Finsh\src/shell.c:484: undefined reference to `__fsymtab_end'
C:\Users\Administrator\Desktop\STM32F4_RTT/Finsh\src/shell.c:484: undefined reference to `__fsymtab_end'
C:\Users\Administrator\Desktop\STM32F4_RTT/Finsh\src/shell.c:485: undefined reference to `__vsymtab_start'
C:\Users\Administrator\Desktop\STM32F4_RTT/Finsh\src/shell.c:485: undefined reference to `__vsymtab_start'
C:\Users\Administrator\Desktop\STM32F4_RTT/Finsh\src/shell.c:485: undefined reference to `__vsymtab_end'
C:\Users\Administrator\Desktop\STM32F4_RTT/Finsh\src/shell.c:485: undefined reference to `__vsymtab_end'
Debug\startup.o: In function `rtthread_startup':
C:\Users\Administrator\Desktop\STM32F4_RTT/User\src/startup.c:88: undefined reference to `__bss_end'
C:\Users\Administrator\Desktop\STM32F4_RTT/User\src/startup.c:88: undefined reference to `__bss_end'

用的是ST官方库里带的linker文件，问题是出在这个文件上吗？
另外提个建议，GCC部分能不能用稍微通行点的IDE，eclipse+gnu arm plugin不是很好嘛，也不用写makefile啊。

leavic

我现在把-fno-builtin这个参数去掉了，newlib和minilibc也删掉了，这个是原来为了使用自己的printf函数加进去的，因为没看到f4的linker文件，用了f1的linker文件可以编译成功。
但是烧进去根本不跑，编译过程中那个memcpy函数还是报错，因为和工具链中的newlib自带的memcpy冲突了。

我是不是应该用RTT自带的newlib或者minilibc?如何保证工具链不调用自己的newlib而是用这两个其中的一个呢？

lujun723

同样的问题

amwox

用SE+GCC，调试的问题如何解决？