They are compiling C++ which has language-visible exception handling instead.
On 16 January 2012 19:03, Bakul Shah <ba...@bitblocks.com> wrote: > How do you deal with longjmp? > > > On Jan 16, 2012, at 10:51 AM, Comeau At9Fans <comeauat9f...@gmail.com> > wrote: > > On Mon, Jan 16, 2012 at 10:41 AM, Bakul Shah <ba...@bitblocks.com> wrote: > >> A frame pointer is needed for C99's variable length arrays but not >> otherwise. Only an issue if ever plan9 C is extended to handle C99 or C1x. >> gcc has to do the right thing even with -fno-frame-pointer. >> > > What we do in problematic cases with Comeau is to generate code to arrange > for the allocation of the VLA on the heap. I'm not saying this is perfect, > but at least it gets the feature implementable and up and running as "a > portable implementation" versus perhaps not being able to implement it at > all on some platforms. > >
