From: Gauresh Rane <gdrane@cs.ucla.edu>
To: Max Filippov <jcmvbkbc@gmail.com>
Cc: Peter Maydell <peter.maydell@linaro.org>, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] Problem with translating on ARM and Qemu beginner question
Date: Fri, 25 Nov 2011 06:13:21 -0800 (PST) [thread overview]
Message-ID: <e5b46983-d1af-491f-ad22-ab0a9320624a@mail.cs.ucla.edu> (raw)
In-Reply-To: <CAMo8BfJQxASohiVpZdrnh7YTnTfuZhVBknzK83o=N2YZq2kkjg@mail.gmail.com>
This is how it looks:
Hi,
Thanks for the help.
Breakpoint 7, cpu_arm_exec (env=0x102033200) at ~/qemu-0.15.0/cpu-exec.c:557
557 next_tb = tcg_qemu_tb_exec(env, tc_ptr);
(gdb) p/x env->regs
$13 = {0x4002c00c, 0x20, 0x4, 0x0, 0x0, 0x0, 0x40000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x30, 0x10007fa8, 0x560d, 0x560c}
(gdb) s
558 if ((next_tb & 3) == 2) {
(gdb) p/x env->regs
$14 = {0x10048000, 0x20, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x30, 0x10007fb8, 0x560d, 0x0}
How to check access to unallocated memory? It's not seg faulting.
Thanks,
Regards,
Gauresh Rane
Grad Student
CS Department
UCLA
----- Original Message -----
From: "Max Filippov" <jcmvbkbc@gmail.com>
To: "Peter Maydell" <peter.maydell@linaro.org>
Cc: "Gauresh Rane" <gdrane@cs.ucla.edu>, qemu-devel@nongnu.org
Sent: Friday, November 25, 2011 5:04:15 AM
Subject: Re: [Qemu-devel] Problem with translating on ARM and Qemu beginner question
>> Also all the registers which are pushed to the stack,
>> "r3, r4, r5, r6, r7, lr" are cleared to zero
>
> That is odd. I wonder if the processor is resetting for some reason.
Another other possibility is stack pointer pointing to a region w/o
underlying physical memory.
--
Thanks.
-- Max
next prev parent reply other threads:[~2011-11-25 14:13 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <519552ce-93df-4c90-82c6-1938d72bff72@mail.cs.ucla.edu>
2011-11-25 10:27 ` [Qemu-devel] Problem with translating on ARM and Qemu beginner question Gauresh Rane
2011-11-25 11:39 ` Peter Maydell
2011-11-25 12:33 ` Gauresh Rane
2011-11-25 12:47 ` Peter Maydell
2011-11-25 13:04 ` Max Filippov
2011-11-25 14:13 ` Gauresh Rane [this message]
2011-11-25 15:35 ` Max Filippov
2011-11-25 15:40 ` Peter Maydell
2011-11-26 19:37 ` Gauresh Rane
2011-11-26 23:31 ` Gauresh Rane
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