I do not know what the shadow stack meant. Is there any idea for the option of
compilation to correct it, and I can handle it quickly not modify your codes .
Owen
-----邮件原件-----
发件人: Josef Weidendorfer [mailto:[email protected]]
发送时间: 2017年6月10日 1:04
收件人: Wuweijia <[email protected]>; [email protected]
抄送: Fanbohao <[email protected]>
主题: Re: 答复: [Valgrind-users] hello there is a question about callgrind on the
arm64.
Sorry, no progress on this front.
If you have any ideas to correctly synchronize real/shadow stack in callgrind
and can do some tests, this would be very welcome!
Josef
Am 05.06.2017 um 10:40 schrieb Wuweijia:
> Josef:
> Hello, is there any news now. when do you can release the patches.
>
> Owen
>
>
> -----邮件原件-----
> 发件人: Josef Weidendorfer [mailto:[email protected]]
> 发送时间: 2017年5月20日 6:24
> 收件人: [email protected]
> 主题: Re: [Valgrind-users] hello there is a question about callgrind on the
> arm64.
>
> Hi Owen,
>
> callgrind currently is somewhat broken on ARM, as the tracking of
> entering/leaving functions is unreliable.
>
> Callgrind heavily uses the stack pointer for that.
> On x86, this works fine, as every call/return changes the SP, but on ARM,
> this is not the case.
>
> There are ideas and at some point, there were patches promised by someone,
> but unfortunately nothing useful up to now...
>
> Josef
>
>
> Am 12.05.2017 um 05:11 schrieb Wuweijia:
>> Hi :
>>
>> I ran the code through the callgrind on the x86-64, it is ok , no
>> recursive cycle existed.
>>
>> But I ran the same the same code through the callgrind on the arm64,
>> it show me there is recursive cycle existed.
>>
>> Between two callgrind.out. file:
>>
>> In arm64:
>>
>> There is function name main’2. It meaning that there is
>> recursive cycle. And it annote the source failed.
>>
>> In x86_64:
>>
>> There is no function name main’2 only main., It mean that
>> there is no cycle.
>>
>> How can I resovle it?
>>
>> The compile options : gcc �Cg �CO0 ./main.cpp
>>
>> The gcc version 4.9
>>
>> Run options: valgrind --tool=callgrind ./a.out
>>
>> Callgrind_annote option callgrind_annote �Cauto=yes
>>
>> BR
>>
>> Owen
>>
>>
>>
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>
>
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