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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>CMICmdCmdExecRun::Execute has this line:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal> lldb::SBProcess process = rSessionInfo.GetTarget().Launch(launchInfo, error);<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>That should do the same thing as the “process launch” command, which will launch lldb-server (linux, bsd, etc) or debugserver (mac), connect to it, and send the A packet to tell it to launch the target.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Take a look at the gdb-remote packet log. Inject this command:<o:p></o:p></p><p class=MsoNormal>log enable gdb-remote packets<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>if the log has very little in it, try the process log:<o:p></o:p></p><p class=MsoNormal>log enable gdb-remote process<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><b>From:</b> lldb-dev <lldb-dev-bounces@lists.llvm.org> <b>On Behalf Of </b>????????? ??????? via lldb-dev<br><b>Sent:</b> Tuesday, August 14, 2018 4:14 PM<br><b>To:</b> Adrian Prantl <aprantl@apple.com><br><b>Cc:</b> LLDB <lldb-dev@lists.llvm.org><br><b>Subject:</b> Re: [lldb-dev] Failing LIT-based lldb-mi tests<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif;color:black'>After long-long debugging I found out that lldb-mi can't successfully launch a process since sometimes it isn't connected with something(I don't know what is it).<br>I found out that it fails after `if (IsConnected())` from `GDBRemoteCommunication::SendPacketNoLock(llvm::StringRef payload)`.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif;color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif;color:black'>Do you have any thoughts about this?<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>On Tue, Aug 14, 2018 at 10:35 PM Adrian Prantl <<a href="mailto:aprantl@apple.com">aprantl@apple.com</a>> wrote:<o:p></o:p></p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal><br><br><o:p></o:p></p><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><p class=MsoNormal>On Aug 14, 2018, at 12:11 PM, Александр Поляков <<a href="mailto:polyakov.alx@gmail.com" target="_blank">polyakov.alx@gmail.com</a>> wrote:<o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p><div><div><div><p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>It seems that the real problem is that sometimes lldb-mi can't launch a process:<o:p></o:p></span></p></div><div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>build/bin/lldb-mi --synchronous a.out < llvm/tools/lldb/lit/tools/lldb-mi/exec/exec-step-instruction.test <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>(gdb)<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>-file-exec-and-symbols "a.out"<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>^done<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>(gdb)<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>^done<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>(gdb)<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>=library-loaded,id="/home/alexander/workspace/gsoc/a.out",target-name="/home/alexander/workspace/gsoc/a.out",host-name="/home/alexander/workspace/gsoc/a.out",symbols-loaded="0",loaded_addr="-",size="0"<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>^done<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>(gdb)<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>^done<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>(gdb)<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>^done<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>(gdb)<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>^done<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>(gdb)<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>^done<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>(gdb)<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>^done<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>(gdb)<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>^done<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>(gdb)<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>^done,bkpt={number="1",type="breakpoint",disp="keep",enabled="y",addr="0x00000000004004df",func="main",file="main.c",fullname="/home/alexander/workspace/gsoc/llvm/tools/lldb/lit/tools/lldb-mi/exec/inputs/main.c",line="6",times="0",original-location="main"}<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>(gdb)<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>=breakpoint-modified,bkpt={number="1",type="breakpoint",disp="keep",enabled="y",addr="0x00000000004004df",func="main",file="main.c",fullname="/home/alexander/workspace/gsoc/llvm/tools/lldb/lit/tools/lldb-mi/exec/inputs/main.c",line="6",times="0",original-location="main"}<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>(gdb)<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>^done<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>(gdb)<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>^error,msg="process launch failed: 'A' packet returned an error: -1"<o:p></o:p></span></p></div></div></div></div></blockquote><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Do you think you might be able to improve the error message here and get at the underlying failure?<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>-- adrian<o:p></o:p></p></div><p class=MsoNormal><br><br><o:p></o:p></p><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><div><div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>(gdb)<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>^done<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>(gdb)<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>^done<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>(gdb)<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>^error,msg="Command 'exec-step-instruction'. Thread ID invalid"<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>(gdb)<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>^done<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>(gdb)<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>^done<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>(gdb)<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>^error,msg="Command 'exec-next-instruction'. Thread ID invalid"<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>(gdb)<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>^done<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>(gdb)<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>^done<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>(gdb)<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>^error,msg="this SBThread object is invalid"<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>(gdb)<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>^done<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>(gdb)<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>^done<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>(gdb)<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>^done<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>(gdb)<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>exec-run executes fine in synchronous mode(the only bad thing here is that lldb-mi doesn't react to any external events like SIGSTOP - ctrl+C, while lldb does). All previous logs were made in asynchronous mode and are wrong.<o:p></o:p></span></p></div></div></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>On Tue, Aug 14, 2018 at 2:36 AM Adrian Prantl <<a href="mailto:aprantl@apple.com" target="_blank">aprantl@apple.com</a>> wrote:<o:p></o:p></p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in'><div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal><br><br><o:p></o:p></p><blockquote style='margin-top:5.0pt;margin-bottom:5.0pt'><div><p class=MsoNormal>On Aug 13, 2018, at 4:19 PM, Александр Поляков <<a href="mailto:polyakov.alx@gmail.com" target="_blank">polyakov.alx@gmail.com</a>> wrote:<o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p><div><div><div><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Arial",sans-serif'>Yes, I do, I'm able to pass any command to lldb-mi before the breakpoint is hit. I guess that making exec-run to block the control until the process stops might be the solution we are looking for.<o:p></o:p></span></p></div></div></div></blockquote><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Right. I believe that it should (in synchronous mode) behave like "run" in the normal lldb command interpreter and block until the process has stopped. You could look at differences in the implementation of -exec-run and "run" in the command interpreter first.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>-- adrian<o:p></o:p></p></div></div><p class=MsoNormal><o:p> </o:p></p></div></blockquote></div><p class=MsoNormal><br clear=all><o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><p class=MsoNormal>-- <o:p></o:p></p><div><div><div><div><div><div><div><div><div><div><div><div><div><div><div><div><div><div><div><div><div><p class=MsoNormal><span style='font-size:9.5pt;font-family:"Arial",sans-serif'>Alexander</span><o:p></o:p></p></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></blockquote></div><p class=MsoNormal><o:p> </o:p></p></div></blockquote></div><p class=MsoNormal><br clear=all><o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><p class=MsoNormal>-- <o:p></o:p></p><div><div><div><div><div><div><div><div><div><div><div><div><div><div><div><div><div><div><div><div><div><p class=MsoNormal><span style='font-size:9.5pt;font-family:"Arial",sans-serif;color:black'>Alexander</span><o:p></o:p></p></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></body></html>