Sorry, I didn't read closely enough. Greg's answer is actually relevant to your question...
Jim > On Aug 19, 2014, at 2:04 PM, Zachary Turner <ztur...@google.com> wrote: > > In this case though, we're talking about Host::GetArchitecture, which is a > static function and is supposed to report information about the OS that the > debugger is running on, and not the target that the debuggee is running on. > Does this mean that a single instance of LLDB cannot debug both an app > running in the simulator, and an app running in darwin? So you have to exit > LLDB and start a new instance of LLDB in "simulator mode" or "mac mode"? Or > am I misunderstanding? > > > On Tue, Aug 19, 2014 at 1:58 PM, <jing...@apple.com> wrote: > Mac OS X is more complex because lldb also supports apps running in the iOS > simulator on OS X. Those apps are x86 or x86_64 processes, but their OS is > "ios", not "darwin". The platforms and a bunch of other fiddly bits rely on > getting the OS right as well. > > Jim > > > On Aug 19, 2014, at 1:52 PM, Zachary Turner <ztur...@google.com> wrote: > > > > Looking over the apple code path for Host::GetArchitecture, I'm a little > > confused about why all this custom logic is needed. What are the > > situations in which llvm::sys::getDefaultTargetTriple() will return > > something other than what we want? Specifically, a concrete example might > > help illustrate the problem. > > > > I understand from the comment that it has something to do with being able > > to run 32 and 64-bit executables in the same operating system. Isn't this > > the case everywhere? I can run 32-bit executables on Windows x64 as well. > > llvm::Triple has a function called get32BitArchVariant() that I thought > > returns a 32-bit triple for this case. Does this not work for some Apple > > configuration? > > > > It seems like this logic should be able to be sunk into llvm::Triple > > somehow. Conceptually speaking, it seems like there should be two cases: > > > > 64-bit: > > host_arch_64 = llvm::Triple::getDefaultTargetTriple() > > host_arch_32 = llvm::Triple::getDefaultTargetTriple().get32BitArchVariant() > > > > 32-bit > > host_arch_64 = <empty> > > host_arch_32 = llvm::Triple::getDefaultTargetTriple() > > > > Why doesn't this work? > > _______________________________________________ > > lldb-dev mailing list > > lldb-dev@cs.uiuc.edu > > http://lists.cs.uiuc.edu/mailman/listinfo/lldb-dev > > _______________________________________________ lldb-dev mailing list lldb-dev@cs.uiuc.edu http://lists.cs.uiuc.edu/mailman/listinfo/lldb-dev
