where do stack traces get filled in?

[Andrew Haley]

Tom Tromey writes:
 > >>>>> "Adam" == Adam Megacz <gcj@lists.megacz.com> writes:
 > 
 > Adam> I see Throwable.stackTrace, but it never gets created in
 > Adam> Throwable.java or natThrowable.cc...
 > 
 > natThrowable.cc defines java::lang::Throwable::fillInStackTrace.
 > This does the actual work.  It is deceptively short because it relies
 > on glibc functionality.  (On ia64 we use _Jv_ia64_backtrace in
 > sysdep/ia64.c.)
 > 
 > Adam> BTW, that's really bizzarre how printStackTrace spawns a process to
 > Adam> run c++filt...
 > 
 > Andrew will have to address that.  I forgot why we did it this way.
 > Maybe licensing?

Yes.  The demangler code is GPLed.  If we linked with it, libgcj
itself would need to be GPLed, and we can't do that.

Andrew.