linux-kernel - RE: [PATCH v3 35/37] x86/cet: Add PTRACE interface for CET

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Message-ID: <CY4PR11MB2005DA1DF43749F2DAF562A5F9099@CY4PR11MB2005.namprd11.prod.outlook.com>
Date:   Fri, 18 Nov 2022 17:25:23 +0000
From:   "Schimpe, Christina" <christina.schimpe@...el.com>
To:     "Edgecombe, Rick P" <rick.p.edgecombe@...el.com>,
        "peterz@...radead.org" <peterz@...radead.org>
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Subject: RE: [PATCH v3 35/37] x86/cet: Add PTRACE interface for CET

> On Thu, 2022-11-17 at 15:14 +0100, Peter Zijlstra wrote:
> > Also, wth is an inferior call?
> 
> I think it's the GDB functionality to make a call in the process being debugged.
> So if you want to call something without an endbranch I guess.

For inferior calls, GDB builds a dummy-frame to evaluate an expression:
https://sourceware.org/gdb/onlinedocs/gdb/Calling.html

Best Regards,
Christina

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