On Friday 04 November 2011 16:03:09 Moffett, Kyle D wrote: > On Nov 04, 2011, at 12:47, Wolfgang Denk wrote: > > you have been modifyong the E1000 driver lately so I hope you are in > > the best position to help and fix a number of build warnings. > > > > For example when building for the MVBC_P board, I get this: > > > > e1000.c: In function 'e1000_read_mac_addr': > > e1000.c:1149:2: warning: dereferencing type-punned pointer will break > > strict-aliasing rules [-Wstrict-aliasing] e1000.c:1149:2: warning: > > dereferencing type-punned pointer will break strict-aliasing rules > > [-Wstrict-aliasing] > > Hmm, I would be inclined to just use "-fno-strict-aliasing" and > "-Wno-strict-aliasing" here. The Linux kernel does the exact same thing > because strict-aliasing tends to cause arbitrary breakage with things > like memcpy() and network protocol buffers.
it's only arbitrary if your code is wrong :) > Here's one relevant email thread: > https://lkml.org/lkml/2003/2/25/270 i don't think that's relevant as that seems to be exercising a specific bug in the kernel which we don't have -mike
signature.asc
Description: This is a digitally signed message part.
_______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
