On Monday, 28 June 1999 at 23:32:59 -0400, Amol Mohite wrote:
>> On Monday, 28 June 1999 at 5:54:29 -0400, Amol Mohite wrote:
>>>
>>> Hi!
>>>
>>> i hope this is the right list for this qs.
>>>
>>> I wanted t know where the environment strings i bsd were stored after a
>>> program execs another one.
>>
>> At the top of memory. You can access them by the standard (but
>> undocumented) method:
>>
>> int main (int argc, char *argv [], char *envp [])
>>
>> envp is a pointer to the environment strings. This is true for every
>> version of UNIX I know.
>>
>>> Is there any place I ca get hold of the ABIs for freebsd ?
>>
>> Can you be more specific?
>
> I know about envp.
>
> What I want to know is the exact position of these variables on the stack.
As I said, at the top.
> and if anywhere I can find some data, on the exact compisoition of
> the stcak, then it will be very helpful.
>
> references of books and websites wil be most helpful.
I think that, for FreeBSD, the source is the only place you'll find
it. There's a brief description in "Porting UNIX Software"
(http://www.ora.com/catalog/port/noframes.html), but that's not
specific to FreeBSD.
Greg
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