This was marked as an lldb 5.0.0 release blocker since it's a regression from 4.0.1: https://bugs.llvm.org/show_bug.cgi?id=34183
lldb-dev: Is there any interest in fixing this bug? On Fri, Aug 4, 2017 at 10:13 PM, Ramana via lldb-dev <lldb-dev@lists.llvm.org> wrote: > Hi, > > I am trying to remote debug ARM (linux) target from x86 (linux) host > and I am getting the following error while trying to launch a process. > The local debugging on ARM works. > > error: connect remote failed (invalid host:port specification: '10.10.2.3') > error: process launch failed: invalid host:port specification: '10.10.2.3' > > It appears the above error is because the gdb-remote is returning the > communication port as zero. > > < 36> send packet: $qLaunchGDBServer;host:svrlin249;#bb > < 19> read packet: $pid:298;port:0;#bf > > What are the possible reasons for the above behavior from gdb-remote > and how I could resolve this? > > If it helps, below is the full log. > > (lldb) log enable lldb comm > (lldb) log enable gdb-remote packets > (lldb) platform select remote-linux > Platform: remote-linux > Connected: no > (lldb) platform connect connect://10.10.2.3:500 > 0x915bd78 Communication::Communication (name = gdb-remote.client) > 0x915bd78 Communication::Disconnect () > 0x915bd78 Communication::Disconnect () > 0x915bd78 Communication::Connect (url = connect://10.10.2.3:500) > Socket::TcpConnect (host/port = 10.10.2.3:500) > TCPSocket::Connect (host/port = 10.10.2.3:500) > 0x915bd78 Communication::Write (src = 0xbfcb7433, src_len = 1) > connection = 0x915f578 > 0x915f608 Socket::Write() (socket = 7, src = 0xbfcb7433, src_len = 1, > flags = 0) => 1 (error = (null)) > < 1> send packet: + > this = 0x0915BD78, dst = 0xBFCB53EC, dst_len = 8192, timeout = 10000 > us, connection = 0x0915F578 > 0x915bd78 Communication::Write (src = 0x916022c, src_len = 19) > connection = 0x915f578 > 0x915f608 Socket::Write() (socket = 7, src = 0x916022c, src_len = 19, > flags = 0) => 19 (error = (null)) > history[1] tid=0x7cbf < 1> send packet: + > < 19> send packet: $QStartNoAckMode#b0 > this = 0x0915BD78, dst = 0xBFCB51AC, dst_len = 8192, timeout = 6000000 > us, connection = 0x0915F578 > 0x915f608 Socket::Read() (socket = 7, src = 0xbfcb51ac, src_len = 7, > flags = 0) => 7 (error = (null)) > < 1> read packet: + > < 6> read packet: $OK#9a > 0x915bd78 Communication::Write (src = 0xbfcb50f3, src_len = 1) > connection = 0x915f578 > 0x915f608 Socket::Write() (socket = 7, src = 0xbfcb50f3, src_len = 1, > flags = 0) => 1 (error = (null)) > < 1> send packet: + > 0x915bd78 Communication::Write (src = 0x9161ff4, src_len = 13) > connection = 0x915f578 > 0x915f608 Socket::Write() (socket = 7, src = 0x9161ff4, src_len = 13, > flags = 0) => 13 (error = (null)) > < 13> send packet: $qHostInfo#9b > this = 0x0915BD78, dst = 0xBFCB510C, dst_len = 8192, timeout = 1000000 > us, connection = 0x0915F578 > 0x915f608 Socket::Read() (socket = 7, src = 0xbfcb510c, src_len = 316, > flags = 0) => 316 (error = (null)) > < 316> read packet: > $triple:61726d2d2d6c696e75782d676e75656162696866;ptrsize:4;watchpoint_exceptions_received:before;endian:little;os_version:3.10.31;os_build:332e31302e33312d6c7473692d30323836312d6738303161343066;os_kernel:233520534d5020467269204d61792031332031353a35383a3232204953542032303136;hostname:736f > 63667067615f617272696135;#0a > 0x915bd78 Communication::Write (src = 0x915fe9c, src_len = 18) > connection = 0x915f578 > 0x915f608 Socket::Write() (socket = 7, src = 0x915fe9c, src_len = 18, > flags = 0) => 18 (error = (null)) > < 18> send packet: $qGetWorkingDir#91 > this = 0x0915BD78, dst = 0xBFCB50FC, dst_len = 8192, timeout = 1000000 > us, connection = 0x0915F578 > 0x915f608 Socket::Read() (socket = 7, src = 0xbfcb50fc, src_len = 24, > flags = 0) => 24 (error = (null)) > < 24> read packet: $2f686f6d652f726f6f74#4b > 0x915bd78 Communication::Write (src = 0x915fe9c, src_len = 19) > connection = 0x915f578 > 0x915f608 Socket::Write() (socket = 7, src = 0x915fe9c, src_len = 19, > flags = 0) => 19 (error = (null)) > < 19> send packet: $qQueryGDBServer#cb > this = 0x0915BD78, dst = 0xBFCB531C, dst_len = 8192, timeout = 1000000 > us, connection = 0x0915F578 > 0x915f608 Socket::Read() (socket = 7, src = 0xbfcb531c, src_len = 7, > flags = 0) => 7 (error = (null)) > < 7> read packet: $E04#a9 > Platform: remote-linux > Triple: arm-*-linux-gnueabihf > OS Version: 3.10.31 (3.10.31-ltsi-02861-g801a40f) > Kernel: #5 SMP Fri May 13 15:58:22 IST 2016 > Hostname: socfpga_arria5 > Connected: yes > WorkingDir: /home/root > (lldb) file main > 0x915bd78 Communication::Write (src = 0x91638fc, src_len = 137) > connection = 0x915f578 > 0x915f608 Socket::Write() (socket = 7, src = 0x91638fc, src_len = 137, > flags = 0) => 137 (error = (null)) > < 137> send packet: > $qModuleInfo:2f686f6d652f72616d616e616e2f776f726b5f726f6f742f546f545f6c6c64622f74657374732f6d61696e;61726d2d2d6c696e75782d656162696866#f1 > this = 0x0915BD78, dst = 0xBFCB172C, dst_len = 8192, timeout = 1000000 > us, connection = 0x0915F578 > 0x915f608 Socket::Read() (socket = 7, src = 0xbfcb172c, src_len = 7, > flags = 0) => 7 (error = (null)) > < 7> read packet: $E03#a8 > Current executable set to 'main' (arm). > (lldb) b main > Breakpoint 1: where = main`main + 4 at main.c:4, address = 0x000104a0 > (lldb) run > 0x915bd78 Communication::Write (src = 0x917bae4, src_len = 36) > connection = 0x915f578 > 0x915f608 Socket::Write() (socket = 7, src = 0x917bae4, src_len = 36, > flags = 0) => 36 (error = (null)) > < 36> send packet: $qLaunchGDBServer;host:svrlin249;#bb > this = 0x0915BD78, dst = 0xBFCB4FDC, dst_len = 8192, timeout = > 10000000 us, connection = 0x0915F578 > 0x915f608 Socket::Read() (socket = 7, src = 0xbfcb4fdc, src_len = 19, > flags = 0) => 19 (error = (null)) > < 19> read packet: $pid:298;port:0;#bf > 0x92b0a84 Communication::Communication (name = process.stdio) > 0x92b0d78 Communication::Communication (name = gdb-remote.client) > 0x92b0a84 Communication::Disconnect () > Socket::TcpConnect (host/port = 10.10.2.3) > TCPSocket::Connect (host/port = 10.10.2.3) > Socket::TcpConnect (host/port = 10.10.2.3) > TCPSocket::Connect (host/port = 10.10.2.3) > Socket::TcpConnect (host/port = 10.10.2.3) > TCPSocket::Connect (host/port = 10.10.2.3) > Socket::TcpConnect (host/port = 10.10.2.3) > TCPSocket::Connect (host/port = 10.10.2.3) > Socket::TcpConnect (host/port = 10.10.2.3) > TCPSocket::Connect (host/port = 10.10.2.3) > Socket::TcpConnect (host/port = 10.10.2.3) > TCPSocket::Connect (host/port = 10.10.2.3) > Socket::TcpConnect (host/port = 10.10.2.3) > TCPSocket::Connect (host/port = 10.10.2.3) > Socket::TcpConnect (host/port = 10.10.2.3) > .................. > .................. > .................. > TCPSocket::Connect (host/port = 10.10.2.3) > Socket::TcpConnect (host/port = 10.10.2.3) > TCPSocket::Connect (host/port = 10.10.2.3) > Socket::TcpConnect (host/port = 10.10.2.3) > TCPSocket::Connect (host/port = 10.10.2.3) > Socket::TcpConnect (host/port = 10.10.2.3) > TCPSocket::Connect (host/port = 10.10.2.3) > Socket::TcpConnect (host/port = 10.10.2.3) > TCPSocket::Connect (host/port = 10.10.2.3) > Socket::TcpConnect (host/port = 10.10.2.3) > TCPSocket::Connect (host/port = 10.10.2.3) > error: connect remote failed (invalid host:port specification: '10.10.2.3') > 0x915bd78 Communication::Write (src = 0x92b38c4, src_len = 27) > connection = 0x915f578 > 0x915f608 Socket::Write() (socket = 7, src = 0x92b38c4, src_len = 27, > flags = 0) => 27 (error = (null)) > < 27> send packet: $qKillSpawnedProcess:298#8b > this = 0x0915BD78, dst = 0xBFCB509C, dst_len = 8192, timeout = 1000000 > us, connection = 0x0915F578 > 0x915f608 Socket::Read() (socket = 7, src = 0xbfcb509c, src_len = 7, > flags = 0) => 7 (error = (null)) > < 7> read packet: $E0a#d6 > error: process launch failed: invalid host:port specification: '10.10.2.3' > (lldb) > > > Regards, > Ramana > _______________________________________________ > lldb-dev mailing list > lldb-dev@lists.llvm.org > 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