Bart Smaalders wrote: > > Some time ago (Solaris 9 development) I put walkcontext() > and printstack() into Solaris. Linux introduced backtrace() > at some point; there are now programs that will use either > one (dovecot, for example), but there are others that confine > themselves to backtrace() only. > > It's fairly simple to support for backtrace, backtrace_symbols, > and backtrace_symbols_fd for Solaris using the existing > walkcontext and support code for printstack(). Is this worth > doing?
Xorg uses backtrace() on Linux to print a stack trace to Xorg.0.log when crashing - I originally added code to use walkcontext() to do the same, but ended up replacing it with pipe/fork/exec of pstack, since that was the only way to see function names of private symbols. I seem to remember seeing a recent fasttrack from the linker aliens to fix this - it would be good if any new backtrace() function could take advantage of it. The previous discussion is archived at: http://www.opensolaris.org/jive/thread.jspa?threadID=2887&tstart=75 (and now that I see that thread again, I see that fork/exec pstack was actually your suggestion). -- -Alan Coopersmith- alan.coopersmith at sun.com Sun Microsystems, Inc. - X Window System Engineering
