On 6 December 2017 at 12:40, Pedro Alves via lldb-dev <lldb-dev@lists.llvm.org> wrote: > On 12/05/2017 11:17 PM, David Manouchehri wrote: >> Is there a user accessible setting to force on XML target descriptions >> in new-gdbsever? > > In gdbserver? Nope. > > There's a setting in GDB to force it to not fetch descriptions, > which I found out today didn't actually work. Fixed now in master [1]. > GDB works fine against gdbserver with XML force-disabled, so > > I suspect something else is going on. > > Maybe a disagreement about who adjusts the PC after a breakpoint trap > between lldb and gdbserver? (given the spurious SIGTRAPs and SIGSEGVs) > gdb and gdbserver negotiate that via qSupported. If both agree on > the "swbreak+" feature, then gdbserver handles it (and reports a "T05 swbreak" > for int3 traps). Otherwise gdbserver assumes that the client (gdb/lldb) will, > so doesn't do it itself. I did a quick grep on a lldb checkout I had > around here and didn't find any "swbreak" hit, but maybe lldb assumes > the server does it? >
I think that could be (a part of) the problem. lldb-server always adjusts the PC (see NativeProcessLinux::FixupBreakpointPCsAsNeeded). I am unsure whether there is any additional fixup logic in the client. _______________________________________________ lldb-dev mailing list lldb-dev@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-dev
