> -----Original Message----- > From: Georg-Johann Lay [mailto:a...@gjlay.de] > Sent: Monday, April 27, 2015 10:17 PM > To: Sivanupandi, Pitchumani; Joerg Wunsch > Cc: avr-libc-dev@nongnu.org; ralphdoncas...@gmail.com > Subject: Re: [avr-libc-dev] [bug #44869] trunk doesn't work with gcc > 5.1.0-RC-20150412 > > Am 04/27/2015 um 04:52 PM schrieb Sivanupandi, Pitchumani: > >> From: Joerg Wunsch [mailto:j...@uriah.heep.sax.de] > >>> Yes. If we release from revision r2473 it will work with gcc-5.1, > >>> not > >> trunk. > >>> > >>> If we release from last revision r2474, it will work with gcc trunk, > >>> not > >> gcc-5.1. > > It will also work with 5.1.1 and up. Ok.
> > Following table illustrates the crt file and device library > > name/layout expected by gcc. AVR-LibC configure is updated to follow > this layout. > > > > Example: atmega1280 > > +----------------+-------------+-------------------------+-------------- > ---+ > > | | GCC < 5.0.0 | GCC 5.1.0 | Others > | > > +----------------+-------------+-------------------------+-------------- > ---+ > > | crt file | crtm1280.o | crtm1280.o | > crtatmega1280.o | > > +----------------+-------------+-------------------------+-------------- > ---+ > > | device library | | dev/atmega1280/libdev.a | > libatmega1280.a | > > +----------------+-------------+-------------------------+-------------- > ---+ > > avr-gcc 5.1.0 will use dev/atmega1280/crt1.o%s as start file where %s > means to search in multilib paths. > > For the change see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65296#c10 > which is also a backport to 5.1.1+ Ohh sorry, my description about GCC-5.1.0 is wrong. Patch is correct. For GCC-5.1.0, crt and device lib are installed in device directory under avr/lib/dev. For others, it installs crt file and device library in multilib directory under avr/lib/ as mentioned below. Example: atmega1280, multi-lib directory is avr51 +-------------+-----------------------+-------------------------+ | | CRT file | Device library | +-------------+-----------------------+-------------------------+ | GCC < 5.0.0 | avr51/crtm1280.o | - | +-------------+-----------------------+-------------------------+ | GCC 5.1.0 | dev/atmega1280/crt1.o | dev/atmega1280/libdev.a | +-------------+-----------------------+-------------------------+ | Others | avr51/crtatmega1280.o | avr51/libatmega1280.a | +-------------+-----------------------+-------------------------+ Regards, Pitchumani _______________________________________________ AVR-libc-dev mailing list AVR-libc-dev@nongnu.org https://lists.nongnu.org/mailman/listinfo/avr-libc-dev
