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Date: Tue, 27 Sep 2011 09:06:55 +0200
From: Jan Kiszka <jan.kiszka@web.de>
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Subject: Re: [Qemu-devel] When the tlb_fill will be called from generated
	code?
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To: =?UTF-8?B?6Zmz6Z+L5Lu7?= <chenwj@iis.sinica.edu.tw>
Cc: qemu-devel@nongnu.org

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On 2011-09-27 06:15, =E9=99=B3=E9=9F=8B=E4=BB=BB wrote:
> Hi, all
>=20
>   The comment above tlb_fill says:
>=20
>     /* try to fill the TLB and return an exception if error. If retaddr=
 is
>        NULL, it means that the function was called in C code (i.e. not
>        from generated code or from helper.c) */
>=20
> I see tlb_fill only be called from softmmu_template.h (i.e., C code). I=

> am wondering when/where the tlb_fill is called from generated code (cod=
e
> cache) or from helper.c.
>=20

You can find the answer yourself: Load qemu into gdb, set a breakpoint
on that function and let it run. If you want to catch only the retaddr
=3D=3D NULL case, make the breakpoint conditional.

Jan


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