Can't Debug: Qt5.5.1 LLDB on OSX

Raychaser

I recently had to re-install my whole OSX machine. When I tried to put Qt back (using a fresh download and install) suddenly my LLDB debuggin just hangs.

Steps to reproduce:

Create a new default console app. Just the standard template one. Nothing fancy.
Set a breakpoint inside main()
Make sure you're on debug mode.
qmake, build then hit cmd-y (osx debug)

I get a terminal but everything hangs.

my output from "Compile output" just says "Debugging starts"

The only output from the terminal is as follows

MyMAchine:~ myuser$ cd /Users/myuser/Qt; /Users/myuser/Qt/Qt\ Creator.app/Contents/MacOS/../Resources/qtcreator_process_stub debug /var/folders/tw/yf67h38j5775v4s43c39qpth0000gn/T/QtCreator.c16720/stub-socket Press\ \<RETURN\>\ to\ close\ this\ window... /Users/myuser/Projects/nar/build-TEST-Clone_of_Desktop_Qt_5_5_clang_64bit-Debug /var/folders/tw/yf67h38j5775v4s43c39qpth0000gn/T/QtCreator.q16720 16720 /Users/myuser/Projects/nar/build-TEST-Clone_of_Desktop_Qt_5_5_clang_64bit-Debug/TEST

The machine is pretty vanilla:

OSX: 10.11.3
XCode: 7.2.1
Qt: 5.5 clang 64bit
LLDB: lldb-340.4.119.1

Might be related to:

https://bugreports.qt.io/browse/QTCREATORBUG-8825

I'm really stumped here. Anyone have any thoughts of where I could start looking to figure this out?

andr

Console + LLDB is simply not implemented yet. Switch off 'Run in Terminal' in your project's Run settings, and it should work.

sandy.martel23

Xcode 7.2.1 breaks debugging with Qt Creator 3.6.1. You need a patch.

https://codereview.qt-project.org/#/c/154748/

I have those diff applied and I can debug fine:

diff -Naur /original/Qt Creator/Qt Creator.app/Contents/Resources/debugger/dumper.py /new/Qt Creator.app/Contents/Resources/debugger/dumper.py
--- /original/Qt Creator/Qt Creator.app/Contents/Resources/debugger/dumper.py	2016-03-14 18:59:09.000000000 +1100
+++ /new/Qt Creator.app/Contents/Resources/debugger/dumper.py	2016-04-08 15:44:48.000000000 +1000
@@ -475,6 +475,8 @@
 
     # Hex encoding operating on str or bytes, return str.
     def hexencode(self, s):
+        if not s:
+            return ''
         if sys.version_info[0] == 2:
             return s.encode("hex")
         if isinstance(s, str):
diff -Naur /original/Qt Creator/Qt Creator.app/Contents/Resources/debugger/lldbbridge.py /new/Qt Creator.app/Contents/Resources/debugger/lldbbridge.py
--- /original/Qt Creator/Qt Creator.app/Contents/Resources/debugger/lldbbridge.py	2016-03-14 18:59:09.000000000 +1100
+++ /new/Qt Creator.app/Contents/Resources/debugger/lldbbridge.py	2016-04-08 15:45:17.000000000 +1000
@@ -1405,12 +1405,12 @@
         elif eventType == lldb.SBProcess.eBroadcastBitSTDOUT:
             # FIXME: Size?
             msg = self.process.GetSTDOUT(1024)
-            self.report('output={channel="stdout",data="%s"}'
-                % self.hexencode(msg))
+            if msg is not None:
+                self.report('output={channel="stdout",data="%s"}' % self.hexencode(msg))
         elif eventType == lldb.SBProcess.eBroadcastBitSTDERR:
             msg = self.process.GetSTDERR(1024)
-            self.report('output={channel="stderr",data="%s"}'
-                % self.hexencode(msg))
+            if msg is not None:
+                self.report('output={channel="stderr",data="%s"}' % self.hexencode(msg))
         elif eventType == lldb.SBProcess.eBroadcastBitProfileData:
             pass