| To: | Harald Krapfenbauer <krapfenbauer@ict.tuwien.ac.at> |
|---|---|
| Subject: | Re: ptrace question |
| From: | Ralf Baechle <ralf@linux-mips.org> |
| Date: | Mon, 14 Jul 2008 12:43:42 +0100 |
| Cc: | "linux-mips@linux-mips.org" <linux-mips@linux-mips.org> |
| In-reply-to: | <487B3242.60202@ict.tuwien.ac.at> |
| Original-recipient: | rfc822;linux-mips@linux-mips.org |
| References: | <487B3242.60202@ict.tuwien.ac.at> |
| Sender: | linux-mips-bounce@linux-mips.org |
| User-agent: | Mutt/1.5.18 (2008-05-17) |
On Mon, Jul 14, 2008 at 01:02:26PM +0200, Harald Krapfenbauer wrote: > Hello, > > If I write memory (maybe with instructions) of a traced application with > the ptrace() call, are the caches invalidated automatically, i.e. can I > assume that the processor uses the newly written values after continuing? ptrace semantics requires PTRACE_POKETEXT to ensure I-cache coherency and consistency. Ralf |
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