[Bug go/60874] FAIL: go.test/test/recover.go execution

[ubizjak at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60874

--- Comment #7 from Uroš Bizjak <ubizjak at gmail dot com> ---
(In reply to Ian Lance Taylor from comment #6)
> I don't know why making the types smaller in comment #4 makes any
> difference.  On a system that does not use split stacks, the runtime will
> allocate a 2M stack for each goroutine (see StackMin in
> libgo/runtime/proc.c).  That is clearly more than large enough to hold a
> 8192 byte value.  The comments in the test about splitting the stack only
> apply to systems that support stack splitting.
> 
> This will need more investigation by somebody with access to an Alpha.  I
> guess one simple first step would be to verify that USING_SPLIT_STACK and
> LINKER_SUPPORTS_SPLIT_STACK are both 0 in the file TARGET/libgo/config.h.

I can verify that they are undefined.

Maybe the effects of split stack can be ruled out on x86 by forcing it to use
libffi closures with non-split stack configuration?