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RE: [Xen-devel] [PATCH] Make strace happy with xeno64.
| To: | "Keir Fraser" <Keir.Fraser@xxxxxxxxxxxx> |
|---|---|
| Subject: | RE: [Xen-devel] [PATCH] Make strace happy with xeno64. |
| From: | "Li, Xin B" <xin.b.li@xxxxxxxxx> |
| Date: | Fri, 10 Jun 2005 16:37:13 +0800 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Fri, 10 Jun 2005 08:36:32 +0000 |
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| Thread-index: | AcVtlzy2FOgfcpoVTVOatZ8owHv29AAAFStw |
| Thread-topic: | [Xen-devel] [PATCH] Make strace happy with xeno64. |
I will test it Keir Fraser wrote: > On 10 Jun 2005, at 09:06, Keir Fraser wrote: > >>> Hi Keir, do you have time to take a look at this patch? >>> -Xin >>> >>> Li, Xin B wrote: >>>> On x86_64, strace expects CS == 0x33 for 64bit >>>> applications and CS == 0x23 for 32bit applications, or >>>> it will complain. This patch makes strace happy with >>>> xeno64. >> >> The CS should be 0x23/0x33 -- no need for masking? Or is >> the fact that the upcall saved mask appears in bits >> 16-23 of the '4-byte' CS value a problem? We can move >> the saved mask if so: I think that would be neater. > > I see that xenlinux places its own save mask at CS+4 > anyway (not CS+2 as Xen does). So I've moved the Xen mask > to CS+4 too. A very simple patch and you probably now > will not need to patch the strace path. > > -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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