On 12/7/2014 10:54 PM, Cst King wrote: > On Monday, December 8, 2014 1:39:48 AM UTC+8, Ted Mielczarek wrote: >> On 12/6/2014 11:59 PM, Cst King wrote: >>> In linux pgo builds, xul is linked twice at least during profile use phase. >>> Can it be avoided? >>> >> If it's getting linked twice during the second phase that's a bug. If >> you mean it's getting linked twice total, then that's intended. PGO >> builds first build an instrumented build (the first link), and then >> after profiling rebuild using the data from profiling to generate better >> code (the second link). If you're seeing something else you should file >> a bug and provide build logs. >> >> -Ted > https://tbpl.mozilla.org/php/getParsedLog.php?id=54110988&tree=Mozilla-Inbound&full=1 > > chmod +x libxul.so five times > rm -f libxul.so five times > > Is it normal? >
I'd have to do some analysis to check exactly, but on everything but Windows PGO builds we link a second copy of libxul.so with some C++ tests linked in (currently done during make check in this Makefile[1]). It's pretty likely that that's what you're seeing. If that's a problem for LTO builds we could disable it there, that's the exact reason we have it disabled for Win32 PGO builds, since they're also LTO and the link phase takes forever. -Ted 1. http://dxr.mozilla.org/mozilla-central/source/testing/gtest/Makefile.in _______________________________________________ dev-builds mailing list [email protected] https://lists.mozilla.org/listinfo/dev-builds
