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Index > Compiler Internals > [request]Default Stack Size for PE

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Chewy509



Joined: 19 Jun 2003
Posts: 297
Location: Bris-vegas, Australia
Chewy509
Hi Guys,

I was wondering about why the default stack size for PE files is only 4096 bytes?

I'm finding that for the project I'm currently working on, a larger stack size is always needed, particularly for PE64 executables.

Is it possible to raise the default stack size to 1MB (as this is the default for MS Compilers/Linkers)?

PS. I'm having a problem with using the 'stack' keyword with large *.asm files, FASM crashes (and at least on my XP x64 PC, it deletes the source file as well). Using 1.67.21, and the same occurs on 1.67.6 as well.

PPS. The delete thing doesn't happen on XP 32bit.
Post 05 Jul 2007, 22:27
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Maverick



Joined: 07 Aug 2006
Posts: 251
Location: Citizen of the Universe
Maverick
The best thing you can do is to keep it to 4KB in the PE, and then handle it dynamically with your own code. Remember, though, to set FS:4 and FS:8 to the correct value (or set it to the $00000000..$7FFFFFFF extremes and forget) otherwise your ESP will be checked in most Win32 functions and your thread will be terminated by the OS (should it lay outside the FS:4..FS:8 boundaries).
For my programming style, I tend to use the stack a lot, and the heap as little as possible. Allocating memory on the stack, when you use the technique above, is just using [ESP-xxxxx] straight. Superfast allocation, and no need to free anything. Also, you don't have to probe for stack pages, etc.. like the usual stack Win32 programming style.
Post 06 Jul 2007, 06:55
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f0dder



Joined: 19 Feb 2004
Posts: 3170
Location: Denmark
f0dder
Just remember to allocate memory for your new manual stack Razz
Post 06 Jul 2007, 11:47
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