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util/boot/StackAttack2.lha

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Short:Set minimum stack size for new processes
Author:stackattack at rycochet.com (Robin Cloutman)
Uploader:thorsten cd32-allianz de (Thorsten Schölzel)
Type:util/boot
Version:2.9
Architecture:m68k-amigaos >= 2.0.0
Date:2006-01-26
Date:2006-01-26
Download:http://aminet.net/util/boot/StackAttack2.lha - View contents
Readme:http://aminet.net/util/boot/StackAttack2.readme
Downloads:1759
StackAttack
-----------
If you are running many programs that patch system functions (such as
commodities and hacks) it might happen that sometimes your machine
crashes without real "motivation". This is often caused by a too low
stack of many programs (because of the patched routines increasing the
stack usage of the corresponding system function).

StackAttack tries to kill these GURUs by patching CreateProc(), CreateNew-
Proc(), RunCommand() and SystemTagList(). It alters the stack passed to
these routines depending on what parameters you supply to StackAttack.

StackAttack allows you to set a minimum stack size a new process (program)
shall have and also by how much bytes you want to increase the stack further

StackAttack1 is ©Copyright 1997-2001 by Georg Steger. All rights reserved!

============

StackAttack2
------------
Some time ago I decided to write a new version of StackAttack to address
some of the issues I found in the old one - namely that if you wanted to
change the amount of stack used, you had to apply *another* patch, using
up memory, and making new program start slightly slower... Not to mention
needing more stack on every program to deal with the fact it was another
patch ;-)

This version is different. It puts the patch in memory, with a named port,
so if you ever want to change the stack used it will change the value used
by the patch already in there. As a side effect it is also a *little* bit
smaller ;-)

The patch in memory is about 430 bytes long, it will check if there's
enough free stack to call the patch function (which is only an extra 20
or so bytes anyway - but better safe than sorry ;-)

Installation
------------
At the moment you should install by hand.
1. Copy StackAttack or StackAttack_020 to C:
2. In S:startup-sequence, directly after the SetPatch line, add
   "StackAttack" (minus quotes)
3. In S:startup-sequence, directly before the LoadWb line, add
3. "StackAttack AUTO" (minus quotes again)
4. Type "StackAttack AUTO" into a CLI
5. That's it, no need to reboot or anything ;-)

Args
----
StackAttack MINSTACK=MIN/N,ADDSTACK=ADD/N,AUTOSTACK=AUTO/S,NOTCLI/S,SHOW/S:
NOTE: "ADDSTACK=ADD/N" is only there for compatability with the old version,
      unless you really have less than a single meg ram, don't use it!

History
-------
2.0 - First new version, 100% asm, replacates old StackAttack.
2.1 - Changed the patch code to make it smaller/faster and more robust.
2.2 - Added IGNORE/K to ignore named tasks that should know what to set the
stack.
      (Note, it checks the *new* prog, not the calling one!)
2.3 - Added a stackcheck function, so the patched function isn't called if there
      isn't enough free stack.
2.4 - Removed IGNORE/K as nobody used it ;-)
2.5 - Did the SystemTagList workaround from 1.3 (old version).
2.6 - No args gives default 8192 byte MINSTACK.
2.7 - Added SHOW/S to see settings. Changed MINSTACK and ADDSTACK so no longer
/K 2.8 - Added NOTCLI/S, by default also sets the same as "Stack", extra
checking for ADDSTACK/N 2.9 - Added AUTOSTACK/S, sets the stack depending on the
amount of memory you have, default 8192,       >16 megs = 16k, >32 megs = 32k,
>64 megs = 64k, >128 megs = 128k.



Contents of util/boot/StackAttack2.lha
 PERMSSN    UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                  114     170  67.1% -lh5- d618 Nov 23  2003 Make
[generic]                  852    1260  67.6% -lh5- 0d71 Jan 11  2004 StackAttack
[generic]                 3763   11446  32.9% -lh5- e767 Jan 11  2004 StackAttack.ASM
[generic]                 1730    3538  48.9% -lh5- cbef Jan 26 19:54 StackAttack2.readme
[generic]                  848    1220  69.5% -lh5- 8b8a Jan 11  2004 StackAttack_020
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         5 files    7307   17634  41.4%            Jan 26 23:13

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