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Oracle Solaris Studio 12.3: Debugging a Program With dbx     Oracle Solaris Studio 12.3 Information Library
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Document Information


1.  Getting Started With dbx

2.  Starting dbx

3.  Customizing dbx

4.  Viewing and Navigating To Code

5.  Controlling Program Execution

6.  Setting Breakpoints and Traces

7.  Using the Call Stack

8.  Evaluating and Displaying Data

9.  Using Runtime Checking

10.  Fixing and Continuing

11.  Debugging Multithreaded Applications

12.  Debugging Child Processes

13.  Debugging OpenMP Programs

How Compilers Transform OpenMP Code

dbx Functionality Available for OpenMP Code

Single-stepping Into a Parallel Region

Printing Variables and Expressions

Printing Region and Thread Information

Serializing the Execution of a Parallel Region

Using Stack Traces

Using the dump Command

Using Events

Synchronization Events

Other Events

Execution Sequence of OpenMP Code

14.  Working With Signals

15.  Debugging C++ With dbx

16.  Debugging Fortran Using dbx

17.  Debugging a Java Application With dbx

18.  Debugging at the Machine-Instruction Level

19.  Using dbx With the Korn Shell

20.  Debugging Shared Libraries

A.  Modifying a Program State

B.  Event Management

C.  Macros

D.  Command Reference


Execution Sequence of OpenMP Code

When you are single stepping inside of a parallel region in an OpenMP program, the execution sequence may not be the same as the source code sequence. This difference in sequence occurs because the code in the parallel region is usually transformed and rearranged by the compiler. Single stepping in OpenMP code is similar to single stepping in optimized code where the optimizer has usually moved code around.