mainthread.cxx - unaligned stack possible

[Jonathan Larmour]

Scott Furman wrote:
> 
> 
> eCos provides the stack for main() when building with libc startup 
> support and CYGSEM_LIBC_MAIN_STACK_FROM_SYSTEM is defined.  However, the 
> stack is declared as an array of  cyg_uint8, so there is the possibility 
> that it is unaligned.

Hmm.. I thought the linker was meant to do this for statics/globals. Oh 
well, let's err on the side of caution...

 > The attached trivial fix ensures that the stack
> is at least octlet-aligned.  (Does any architecture require an alignment 
> stricter than 8 bytes ?)

Some can. I've checked in a slightly better version (attached).

Jifl
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