[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH] fix of vmxassist.ld
On 14/8/06 7:56 am, "Yang, Xiaowei" <xiaowei.yang@xxxxxxxxx> wrote: > Currently there's one bug in tools/firmware/vmxassist/vmxassist.ld. It > intends to put all uninitialized globe variables in object files into > between _bbss and _ebss. In head.S, it sets memory between _bbss and > _ebss to 0. But for gcc, compiler will put uninitialized globe variables > (e.g: int a;) into a section called COMMON, rather than .bss, and linker > collects variables in COMMON section of all objects and puts them in > .bss. So it results in uninitialized globe variables are behind _ebss, > rather than in front of it, which will not be set to 0. This patch fixes > it. Usual way around this is to define the start/end labels outside the .section{} region. This is what the Xen and Linux linker scripts do, so it's the fix I checked in for this issue. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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