Re: [Valgrind-users] Valgrind can't catch memory breaking by overwriting global valuable and local valuable ???

[Jack <vm...@gm...>]

Dear all

thank u guys, Philippe and Tom

it's a good direction i will try to do 

actully i read valgrind FAQ before , but i just read memcheck part and passed others....haha

i have read them again

appreciation again
jack 



> Philippe Waroquiers <phi...@sk...> 於 2015年5月25日 下午8:38 寫道：
> 
> On Mon, 2015-05-25 at 12:41 +0100, Tom Hughes wrote:
>> On 25/05/15 12:26, Jack wrote:
>> 
>>> so i wrote an test program on pc to test valgrind ability of program internal memory breaking
>>> but somehow it seems can't fetch program internal over-writing and under-writing global or local valuable??
>> 
>> http://valgrind.org/docs/manual/faq.html#faq.overruns
>> 
>> Tom
>> 
> As explained in the reference given by Tom, memcheck does not find
> over/under-run bugs in local or global variables.
> 
> For that, you might try the experimental tool   --tool=exp-sgcheck
> 
> (sgcheck = s-tack or g-lobal check)
> 
> Philippe
> 
> 
>