Doc: Describe Debugger settings in appropriate sections

Link to the "Debugger Settings" section where appropriate.

Task-number: QTCREATORBUG-24500
Change-Id: I7e19211c22bf0139678d49e46db3bd2bb04c7260
Reviewed-by: hjk <hjk@qt.io>

doc/qtcreator/src/debugger/creator-debugger-common.qdocinc

@@ -321,6 +321,11 @@
     function after pressing \key {Shift+F11}, the \uicontrol {Return Value}
     pane displays the value returned by the function.
 
+    When using GDB, you can specify whether the dynamic or the static type of
+    objects will be displayed. Select \uicontrol {Use dynamic object type for
+    display} in the context menu. Keep in mind that choosing the dynamic type
+    might be slower.
+
 //! [debugger-locals]
 
 //! [debugger-expressions]

doc/qtcreator/src/debugger/creator-only/creator-debugger-settings.qdocinc

@@ -35,15 +35,26 @@
 
     \image qtcreator-debugger-general-options.png
 
+    You can customize the appearance and behavior of the debug views,
+    \l{Specifying Breakpoint Settings}{specify settings for breakpoints},
+    and map source paths to target paths.
+
     \section2 Mapping Source Paths
 
     To enable the debugger to step into the code and display the source code
     when using a copy of the source tree at a location different from the one
-    at which the libraries were built, map the source paths to target paths:
+    at which the libraries were built, you can map source paths to target
+    paths.
+
+    To automatically map the source paths to a Qt version that has not been
+    patched, select \uicontrol {Add Qt Sources} and browse to the location
+    of the Qt source files.
+
+    To manually map the source paths to target paths:
 
     \list 1
-        \li Select \uicontrol Tools > \uicontrol Options > \uicontrol Debugger >
+        \li In \uicontrol {Source Paths Mapping}, select \uicontrol Add to add
-            \uicontrol General > \uicontrol Add.
+            an entry to the path list.
         \li In the \uicontrol {Source path} field, specify the source path in
             the debug information of the executable as reported by the debugger.
         \li In the \uicontrol {Target path} field, specify the actual location

doc/qtcreator/src/debugger/creator-only/creator-debugger.qdoc

@@ -124,6 +124,10 @@
     \uicontrol GDB and \uicontrol CDB. For more information, see
     \l{Specifying Debugger Settings}.
 
+    To allow reading the user's default .gdbinit file on debugger startup,
+    select the \uicontrol {Load .gdbinit file on startup} check box in
+    GDB settings. For more information, see \l{Specifying GDB Settings}.
+
     \note Starting a C++ program in the debugger can take a long time, typically
     in the range of several seconds to minutes if complex features are used.
 
@@ -411,6 +415,13 @@
 
     \endlist
 
+    By default, a non-responsive GDB process is terminated after 20 seconds.
+    To increase the timeout in the \uicontrol {GDB timeout} field, select
+    \uicontrol Tools > \uicontrol Options > \uicontrol Debugger >
+    \uicontrol GDB. For more information about settings that you can specify
+    to manage the GDB process, see \l{Specifying GDB Settings} and
+    \l{Specifying Extended GDB Settings}.
+
     \section3 Using CDB
 
     In remote mode, the local CDB process talks to a CDB process that runs on
@@ -475,6 +486,10 @@
             \li  Click \uicontrol OK to start debugging.
 
     \endlist
+
+    To specify settings for managing the CDB process, select \uicontrol Tools >
+    \uicontrol Options > \uicontrol Debugger > \uicontrol CDB. For more
+    information, see \l{Specifying CDB Settings}.
 */
 
 
@@ -608,6 +623,16 @@
     It is also possible to continue executing the program until the current
     function completes or jump to an arbitrary position in the current function.
 
+    \section2 Stepping Into Code
+
+    When using GDB as the debugging backend, you can compress several steps
+    into one step for less noisy debugging. For more information, see
+    \l{Specifying GDB Settings}.
+
+    The extended GDB settings provide the option to step backwards in code,
+    but this option should be used with care, as it is slow and unstable on the
+    GDB side. For more information, see \l{Specifying Extended GDB Settings}.
+
    \section2 Customizing Debug Views
 
     You can change the appearance and behavior of the debug views by specifying
@@ -736,6 +761,11 @@
     Right-click the view to open a context menu that contains menu items for
     reloading data and opening files.
 
+    To enable the debugger to step into the code and display the source code
+    when using a copy of the source tree at a location different from the one
+    at which the libraries were built, you can map source paths to target
+    paths. For more information, see \l{Mapping Source Paths}.
+
     By default, the \uicontrol {Source Files} view is hidden.
 
     \section2 Viewing Disassembled Code
@@ -752,6 +782,10 @@
     running. Alternatively, click the \inlineimage debugger_singleinstructionmode.png
     (\uicontrol {Operate by Instruction}) tool button on the debugger tool bar.
 
+    By default, GDB shows AT&T style disassembly. To switch to the Intel style,
+    select \uicontrol Tools > \uicontrol Options > \uicontrol Debugger >
+    \uicontrol GDB > \uicontrol {Use Intel style disassembly}.
+
     \section2 Viewing and Editing Register State
 
     The \uicontrol Registers view displays the current state of the CPU registers.
@@ -845,6 +879,11 @@
     Linux, LLDB on macOS, and CDB on Windows, or any other platform on which at
     least one of the three supported backends is available.
 
+    To use the default GDB pretty printers installed in your system or linked
+    to the libraries your application uses, select \uicontrol Options >
+    \uicontrol Debugger > \uicontrol GDB > \uicontrol {Load system GDB pretty
+    printers}. For more information, see \l{Specifying GDB Settings}.
+
     \section2 Customizing Built-In Debugging Helpers
 
     You can have commands executed after built-in debugging helpers have
@@ -870,6 +909,11 @@
     handle SIGSTOP nostop
     \endcode
 
+    To display a message box as soon as your application receives a signal
+    during debugging, select \uicontrol Tools > \uicontrol Options >
+    \uicontrol Debugger > \uicontrol GDB > \uicontrol {Show a message box
+    when receiving a signal}.
+
     \section2 Adding Custom Debugging Helpers
 
     To add debugging helpers for your own types, no compilation is required,