On Fri, Nov 15, 2019 at 6:03 AM Peter Maydell <[email protected]> wrote:
> On Fri, 15 Nov 2019 at 05:03, Michael Goffioul > <[email protected]> wrote: > > When running QEMU user mode on some code compiled by clang (dynamic > linker from AOSP-10), the emulator chokes on this instruction: > > > > 9aa92: e8c0 2277 strexd r7, r2, r2, [r0] > > I think that ought to be a valid insn... > > > From debugging, I determined that op_strex() calls > unallocated_encoding(), which I think leads to the SIGILL signal generated. > > > > I run the emulator without specifying the ARM cpu type, I think it then > defaults to "any", which should support all instructions, if I'm not > mistaken. > > > > Is this instruction really invalid? Or am I doing something wrong? > > Which version of QEMU are you using? (Looking at the code I > suspect we still have this bug in master, but it's always > useful to specify what version you're using in a bug report.) > Yes sorry, I forgot to mention it. I'm using master branch at 187f35512106501fe9a11057f4d8705431e0026d
