On Mon, Aug 06, 2007 at 10:43:21PM -0700, J.C. Roberts wrote: > I'm looking for all the needed steps to get firefox debug running in > gdb. It's my first attempt at this and I've failed to the correct find > the mozilla docs (assuming they exist) or details in the misc@, ports@ > or tech@ archives. > > >From what I've learned, you're supposed to use the following switches > with the /usr/bin/firefox shell script. > > $ firefox -g > > You can be more explicit by naming the binary and the debugger. > > $ firefox -g /usr/local/mozilla-firefox/firefox-bin -d gdb > > The two are equivalent. > > Once inside gdb, I know you need to handle some signals. I've tried all > combinations of the following signals and handling (nostop etc) without > any luck: > > (gdb) handle SIG32 nostop noprint pass > (gdb) handle SIG33 nostop noprint pass > (gdb) handle SIGPIPE nostop noprint pass > > > The problem I'm having is the gdb session just stops, without error, and > firefox never actually loads. It never stops in the same place twice > but it always stops. > example > (gdb) run > <lots of output from debug flavor> > Reading in symbols for nsCSSStyleRule.cpp...done. > Reading in symbols for nsJARURI.cpp...done. > Reading in symbols for nsReadableUtils.cpp...done. > Reading in symbols for nsCSSScanner.cpp...done. > Reading in symbols for nsCSSParser.cpp...done. > ++DOMWINDOW == 2 > Reading in symbols for jsscope.c...done. > Reading in symbols for /usr/src/lib/libc/string/strdup.c...done. > Reading in symbols for nsTraceRefcntImpl.cpp...done. > Reading in symbols for nsXMLDocument.cpp...done. > > It just sits there like gdb has hit an invisible limit and is waiting > for something, and yes, it's sitting in the wait state. > (from top) > 25200 jcr 10 0 272M 270M idle wait 0:32 0.00% gdb > 16656 jcr 31 0 7344K 25M stop/0 - 0:03 0.00% firefox-bin > > Reluctantly, I've tried kicking the kern.maxfiles sysctl up as high as > 20,000 but that's not the issue (I normally run the default).
Just guessing from my previous pleasant experience of debuging firefox: increase ulimit -> data to ~ 2GB add swap until you have a total of ~2GB I remember something like gdb alone eating 900MB. Tobias > [...]
