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这样的L6200E错误该如何解决 |
| 作者：socitiac 栏目：ARM技术 |
在编译工程文件中，显示如下的错误信息 Error: L6200E: Symbol _sys_close multiply defined (by sys_io.o and target.0) 还有_sys_write，_sys_read等几个，这几个可以在tagart.c中解决（增加该部分内容目的是什么呢？）； 但是对这个错误 Error: L6200E: Symbol __semihosting_swi_guard multiply defined (by use_semi.o and use_no_semi.o),这个错误该如何消除呢，因为我找不到这两个文件的源文件呀！ 在网上查了一下，可以通过如下措施解决，但还是不行呀，各位谁遇到过该现象吗，如何解决的呀，也请周工帮看看呀 #pragma import(__use_no_semihosting_swi) |
| 2楼： | >>参与讨论 |
| 作者： gyf2000 于 2005/5/6 15:29:00 发布：
re Symbol __semihosting_swi_guard multiply defined (by use_semi.o and use_no_semi.o). This error is reported when functions that use semihosting SWIs are linked in from the C library, in the presence of the __use_no_semihosting_swi guard. See the ADS 1.2 Compilers and Libraries Guide, section 4.2.2, "Building an application for a nonsemihosted environment" and ADS 1.2 Developer Guide, Section 6.10.1, "LINKer error __semihosting_swi_guard". To resolve this, you must provide your own implementations of these C library functions. The ADS 1.2 \Examples\embedded directory contains examples of how to re-implement some of the more common SWI-using functions - see the file retarget.c. To identify which SWI-using functions are being linked-in from the C libraries: 1. LINK with 'armlink -verbose -errors err.txt' 2. Search err.txt for occurrences of '__I_use_semihosting_swi' For example: : Loading member sys_exit.o from c_a__un.l. reference : __I_use_semihosting_swi definition: _sys_exit : This shows that the SWI-using function _sys_exit is being linked-in from the C library. To prevent this, you will need to provide your own implementation of this function. |
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