On Thu, 21 Nov 2013, Ralf Baechle wrote: > > Also I'm not sure what the core file format is for the FP context, it may > > be worth double-checking too. > > Is there some test suite for that kind of stuff? GDB has some core file support coverage; I'm not sure if it's meticulous enough to catch such issues though, and also if it checks OS-produced cores or ones made with its own `generate-core-file' (aka `gcore') command only. Besides if ptrace(2) and the core dumper are consistent with each other, then chances are that any bugs there cancel each other too. > > Please feel free to poke me directly if you have any further issues about > > MIPS I ISA compatibility. > > Makes me wonder if there's a MIPS emulator that emulates a MIPS I system > faithfully. The Algorithmics FPU emulator (the original version shipped with their SDE kit, not the kernel version we got contributed) could have been strapped for true MIPS I support I believe. Also GNU sim might be able to emulate a whole MIPS I CPU, although I haven't checked. Other than that I haven't seen any (QEMU does not). Maciej
