On Wed, Jun 13, 2001 at 10:19:14PM +1000, Keith Owens wrote: > >That can be done automatically. For 32-bit ELF files mips*-linux binutils > >dump some of the addresses as 32-bit addresses, some as sign-extended (!) > >64-bit addresses. So ksymops should just sign extend any 32-bit addresses > >to 64-bit and then work on full lenght addresses. > > Some utilities extend with leading 0, some with leading 1, some with > special values (alpha). It is safer to truncate everything to the > specified width instead of guessing what the extension value is. That's a processor specific thing. In case of MIPS only signed extension is correct. Some older binutils did unsigned extension and that's plain wrong. > >Is ksymoops able to handle 64-bit addresses when running on a 32-bit host? > >That is a common case for many people when decoding their MIPS oopses. > > Yes and no. The framework is there to handle 32/64 splits, sparc > already uses it. mips does not currently use the framework because the > oops report does not identify the machine type 32/64, MSB/LSB. We > discussed this in January and I asked for a small change to mips64 oops > output (below), was that ever done? Nothing - ``Guilty as charged. Filed in my "to do when I have time" folder, which overflowed about 3 years ago :(.'' Ralf
