On Sun, May 11, 2014 at 10:04:24PM +0200, Lukas Tribus wrote: > > Did you force any specific cflags on your makefile ? By default we > > build with -fno-strict-aliasing specifically to avoid this. > > Ah, I see whats going on. > > I specified CFLAGS on the command line via: > make CFLAGS="-g -O3" [...] > > Which is overwriting a lot of things in the Makefile, including > -march=native and -fno-strict-aliasing. > > That makes me wonder if its a good idea to use CFLAGS="-g -O0" > when troubleshooting crashes. It would be better to just modify > the Makefile in this cases, or manually specify the missing > options.
No it's simpler, just define a new set of per-CPU options like I do for development : make -j 4 CC=gcc TARGET=linux2628 CPU=native CPU_CFLAGS.native="-O0" Willy
