for an executable its not possible.
open will return with ETXTBSY error.
OS:ubuntu.
On Fri, Nov 11, 2011 at 1:50 PM, NAMAN KOHLI wrote:
> @Utkarsh
>
> In this code I am writing on the source code file at time of execution
> Every time the file executes it changes its own source code...
@Utkarsh
In this code I am writing on the source code file at time of execution
Every time the file executes it changes its own source code...However I too
would like to know if we can do that in c ...
On Fri, Nov 11, 2011 at 12:38 PM, UTKARSH SRIVASTAV wrote:
> @NAMAN i don't know python
@NAMAN i don't know python but i think u r writing in a new file .
what i want to say a c code that could write on a.out without the use of
another file
On Fri, Nov 11, 2011 at 12:32 PM, NAMAN KOHLI wrote:
> I think @Don meant this
>
> For a *"New Text Document.py"* in my folder I am
I think @Don meant this
For a *"New Text Document.py"* in my folder I am running this script in
python
File = open("New Text Document.py",'r')
data = File.readlines()
print 1
value = int(data[2].split(" ")[1])
print value
File.close()
File = open("New Text Document.py",'w')
value += 1
data[2]
@don can u give a code for your logic
On Wed, Oct 19, 2011 at 2:45 PM, Azhar Hussain wrote:
> I am not sure about the program to do it. But, 'strace' on linux would
> give the details of a program(parameters passed, retrun values, signals
> recieved etc). If you are looking for something similar
I am not sure about the program to do it. But, 'strace' on linux would give
the details of a program(parameters passed, retrun values, signals recieved
etc). If you are looking for something similar then you can loot at strace
source.
mean while a.out does not not have information of stack pointer
http://www.dgp.toronto.edu/~ajr/209/notes/memoryos.html
Rahul
On Wed, Oct 19, 2011 at 2:29 PM, Rahul wrote:
> http://valgrind.org/
>
> I am not sure but this may help on linux.
> I have a question that how to determine the number of system calls a
> program has made ?
> That too of a particular
http://valgrind.org/
I am not sure but this may help on linux.
I have a question that how to determine the number of system calls a program
has made ?
That too of a particular type
Rahul
On Wed, Oct 19, 2011 at 11:07 AM, kumar raja wrote:
> Can someone give me an idea about how to see the range
Can someone give me an idea about how to see the range of segments like data
,heap,stack and text segments of an executable file.(a.out)
Is there anyway to access the those segments from the program itself (while
in execution), like using stack pointer for stack segment ??
On 18 October 2011 19
@Don, Gene:
very good insights,
didn't even thought of the changing the executable, but it indeed is one way
to do.
:)
@Don: agree with scripts and interpreted code.. :)
[coming out of the same language helps answers some questions easily]
--
You received this message because you are subscrib
It depends on the language.
If is is a scripted or interpreted language then you can just change
the source code.
If it is a compiled language you would change the binary code where
the output value is stored.
I'm not saying that it is a recommended approach, but it is possible.
Don
On Oct 17, 10:
Not really. Most executable formats have a way to include extra data
that's not used by the loader. You could store a count in such data
and have the program modify the executable every time it runs. Not
recommended, though. A separate file is a much better idea.
You could also play games by a
@don
Do you mean read the source and modify the hard coded value..
This will involve the the compile and linking steps right?
Did you mean some thing else?
--
You received this message because you are subscribed to the Google Groups
"Algorithm Geeks" group.
To view this discussion on the web vi
Could be done by a self-modifying program.
Don
On Oct 15, 5:26 am, kumar raja wrote:
> you have to write a program which tell about how many times it has run.
> ex:
> if you run first time it will print 1.
> if you run second time it will print 2.
> like this.
>
> --
> Regards
> Kumar Raja
> M.Te
the only way to do this is to store in an external space like file.
if its a function that is called, a static variable can be used to track
count.
Question: Can extern variables span accross processes? They cannot right. I
mean two forked process share the same extern variable instance??
--
15 matches
Mail list logo
