[Oslib-devel] About the stack check in the oslib examples...

[Luca A. <luc...@em...>]

Hi all,

as someone of you may have noted, the stack check at the end of the
oslib programs from the "examples" directory sometime fails... In
particular, it was pointed out the failure in the recently posted
diskdemo.c.

After some investigation, I arrived to the conclusion that there is no
real failure: the fact is that in some situations (in particular, when
using gcc 3.* with -O), the compiler performs strange optimizations
changing the stack pointer... Hence, we cannot assume that the stack
pointer at the beginning and at the end of the program is the same (try
-O0 to remove such optimizations...  After changing some "extern inline"
in "static inline", the examples will compile, and will not complain
about the stack pointer anymore).

But I could be wrong... Hence, if someone wants to investigate the
problem he is more than welcome.

BTW, while compiling with -O0 I found some "static inline vs extern
inline" errors... I'll commit the fixes in the next days.


			Luca
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