> -----Original Message----- > From: Georg-Johann Lay [mailto:a...@gjlay.de] > Sent: Wednesday, April 08, 2015 4:56 PM > To: Denis Chertykov > Cc: Sivanupandi, Pitchumani; GCC Patches; Joerg Wunsch; Selvaraj, > Senthil_Kumar > Subject: Re: [patch,avr]: Part2: Fix various problems with specs and specs > file generation. > > Am 04/08/2015 um 10:28 AM schrieb Denis Chertykov: > > 2015-04-07 15:34 GMT+03:00 Georg-Johann Lay <a...@gjlay.de>: > >> Am 04/06/2015 um 11:54 AM schrieb Sivanupandi, Pitchumani: > >>> > >>> Hi Johann, > >>> > >>> Did you try running g++ tests? > >>> It seems xgcc is invoked to get multilibs (from > >>> gcc/testsuite/lib/g++.exp) which failed to find specs file. > >> > >> > >> > >> This is because libgloss.exp:get_multilibs (used from g++_init) runs > >> xgcc > >> ($compiler) without -B, i.e. without any prefix. Without prefix > >> there is no way to determine where the specs files are located. > >> > >> Patching driver_self_specs to read a specs file by means of -specs= > >> is, well, not very common. I don't know any other target which does > that. > >> > >> As a work-around you can run the tests against the installed compiler. > >> > >> Denis, what do you think? I could add yet another fixme to avr > >> backend like the following; that way there's no need to change > dejagnu: > >> > >> > >> Johann > >> > >> Index: config/avr/driver-avr.c > >> > =========================================================== > ======== > >> --- config/avr/driver-avr.c (revision 221602) > >> +++ config/avr/driver-avr.c (working copy) > >> @@ -80,6 +80,20 @@ avr_devicespecs_file (int argc, const ch > >> return X_NODEVLIB; > >> > >> case 1: > >> + if (0 == strcmp ("device-specs", argv[0])) > >> + { > >> + /* FIXME: This means "device-specs%s" from > >> avr.h:DRIVER_SELF_SPECS > >> + has not been resolved to a path. That case can occur when > the > >> + c++ testsuite is run from the build directory. DejaGNU's > >> + libgloss.exp:get_multilibs runs $compiler without -B, > >> i.e.runs > >> + xgcc without specifying a prefix. Without any prefix, > >> + there > >> is > >> + no means to find out where the specs files might be located. > >> + get_multilibs runs xgcc --print-multi-lib, hence we don't > >> + actually need information form a specs file and may skip it > >> + altogether. */ > >> + return X_NODEVLIB; > >> + } > >> + > >> mmcu = AVR_MMCU_DEFAULT; > >> break; > >> > > > > I'm weak in dejagnu internals and c++ testsuite. > > It looks like an acceptable solution. > > > > Denis. > > Pitchumani, does that patch work for you? If so I'd go ahead and apply > it.
Yes. It works for me. Thanks. > And what about the spaces problem as mentioned in > > http://savannah.nongnu.org/bugs/?44574 > http://lists.gnu.org/archive/html/avr-libc-dev/2015-03/msg00010.html > > Art there plans to fix that? Yes. Will submit patch to avr-libc by next week. Regards, Pitchumani
