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Subjectuser-mode stack size & location
Date
hi!
i'm working on a new concept of i386 memory management and have to change
quite a bit of the linux mm. could someone please point out, where the
location & size of the USER-MODE stack is set for a new program (i.e. after
calling sys_execve...) exactly?

I know that all settings are simply copied from the parent-process when
invoking fork and how the stack grows (through page-faults).

However,

1.) is

mm->start_stack

set inside the

search_binary_handler / the individual fs-handlers?

i see that the aout-, elf-, etc. handlers all set this variable --> is this
the only location where it can be set?

2.) when looking at /proc/PID/maps, i see that the stack always ends at
different locations (obviously close to TASK_SIZE). thus the sizes seem to
vary. where are they set / where are the infos written to the vma's / the
PGD?

any help would be greatly appreciated!!
greets,
clemens
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