Setting and Removing Unconditional Thread Breakpoints

You can set or remove an unconditional thread breakpoint by using:

• The Work with Module Breakpoints display
• The TBREAK debug command to set a thread breakpoint in the current thread
• The CLEAR debug command to remove a thread breakpoint

To set an unconditional thread breakpoint using the Work with Module Breakpoints display:

• Type 1 (Add) in the Opt field.
• In the Thread field, type the thread identifier.
• Fill in the remaining fields as if it were an unconditional job breakpoint.
• Press Enter.

The TBREAK debug command has the same syntax as the BREAK debug command. Where the BREAK debug command sets a job breakpoint at the same position in all threads, the TBREAK debug command sets a thread breakpoint in a single thread — the current thread.

The current thread is the thread that is currently being debugged. Debug commands are issued to this thread. When a debug stop occurs, such as a breakpoint, the current thread is set to the thread where the debug stop happened. The debug THREAD command and the 'Work with Debugged Threads' display can be used to change the current thread.

To remove an unconditional thread breakpoint use the CLEAR debug command. When a thread breakpoint is cleared, it is cleared for the current thread only.