[Bug libgcj/36218] [4.4 regression] libgcj causes stack overflow in jc1.exe

[dannysmith at users dot sourceforge dot net]

------- Comment #2 from dannysmith at users dot sourceforge dot net  2008-05-13 03:52 -------
(In reply to comment #0)
>  What negative consequences does increasing the default [stack]
> allocation have?  
Minimal really, for a single threaded program like jc1.exe.  We are just
reserving address space not actual memory.  In a multithreaded app, each thread
reserves the same amount of address space as the primary thread (by default,
but the default can be overiden), so too high a stack reserve for main thread
can limit what is available for others.  



Is it possible to adjust this limit at runtime, perhaps as
> needed?
> 
No, not for main thread. It is built into the program header on MS windows.
GNAT also bumps stack reserve to 32 MB for "non-tasking" apps.  See
system-mingw.ads.  

In old days, 32 MB was default for win32 in gnu ld.
Danny


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36218