why does exception.cc have "unwinding" code for sjlj?

Fri Feb 1 10:08:00 GMT 2002

Richard Henderson writes:
 > On Fri, Feb 01, 2002 at 01:55:00PM +0000, Andrew Haley wrote:
 > > We're baffled by this. Why does SJLJ_EXCEPTIONS code need the
 > > call-site table? Something to do with
 > 
 > The call site table allows us to call setjmp just and handle any
 > exception within the function. The previous implementation had
 > to call setjmp many times, which bloated the code quite a bit.
Okay. Is this scheme compatible with binary file formats like
Windows' weird version of coff, or does it require special ELF
sections?
Andrew.