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[Xen-devel] [PATCH] fix of vmxassist.ld
| To: | <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] [PATCH] fix of vmxassist.ld |
| From: | "Yang, Xiaowei" <xiaowei.yang@xxxxxxxxx> |
| Date: | Mon, 14 Aug 2006 14:56:55 +0800 |
| Delivery-date: | Mon, 14 Aug 2006 08:19:42 -0700 |
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| Sender: | xen-devel-bounces@xxxxxxxxxxxxxxxxxxx |
| Thread-index: | Aca/btMIXnH79aIBSC+Yqq7s+eOBcA== |
| Thread-topic: | [PATCH] fix of vmxassist.ld |
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. Thanks, Xiaowei
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