Re: [Gcl-devel] ia64 and garbage collection
>1) Does the __builtin function identically to the asm in the Boehm-gc?
> Returning the same address too?
The builtin function gives you an inline flushrs instruction. The result
here will be slightly different than calling a function that uses flushrs,
but this may not matter for your purpose.
>2) Looking over the boehm code, am I correct in guessing that this is
> also the case on hppa (HP PA-RISC)?
ia64-hpux behaves the same as ia64-linux here, since it is a feature of the
IA-64 architecture. HP PA-RISC only has one stack as far as I know.
The hppa hpux problems are probably unrelated to the IA-64 problems.
>3) I'd appreciate your comments on the patch below if possible.
It looks reasonable. I've avoiding learning too much about this part of the
IA-64 architecture, so i can't say for sure whether it is completely right.
The __libc_ia64_register_backing_store_base reference might be glibc and hence
linux specific. I don't think the ABI requires that the variable be present.
Thus you might need different mechanisms here for other IA-64 operating systems
like HPUX, MS Windows, FreeBSD, etc.