[cfe-dev] FreeBSD kernel - linking

[Roman Divacky]

On Thu, Feb 12, 2009 at 11:23:16AM -0800, Mike Stump wrote:
> On Feb 12, 2009, at 10:53 AM, Chris Lattner wrote:
> > that won't help, clang generates these for structure copies.
> 
> There are only a couple of options.  One, clang is documented to  
> require memmove, and we require the kernel to have one.  Two, clang is  
> documented as not requiring it, and we generate inline code, or calls  
> to a runtime library that is linked against.  Three, we generate calls  
> to a clang internal routine, and emit it linkonce (comdat) in every  
> translation unit that references it.  Now, the canonical solution _is_  
> -fno-builtin-memmove, if implemented, it would do something  
> indistinguishable from the last.  Why do you say it won't help?

all I want from clang is to state the position. I have a preliminary
ok to introduce memmove() to freebsd kernel

I just need to know the official position.