GDB allows the following task-related commands:
(gdb) info tasks ID TID P-ID Thread Pri State Name 1 8088000 0 807e000 15 Child Activation Wait main_task 2 80a4000 1 80ae000 15 Accept/Select Wait b 3 809a800 1 80a4800 15 Child Activation Wait a * 4 80ae800 3 80b8000 15 Running c
In this listing, the asterisk before the first task indicates it to be the
currently running task. The first column lists the task ID that is used
to refer to tasks in the following commands.
break ... thread .... linespec specifies source lines.
Use the qualifier ‘task taskid’ with a breakpoint command
to specify that you only want
GDB to stop the program when a
particular Ada task reaches this breakpoint. taskid is one of the
numeric task identifiers assigned by
GDB, shown in the first
column of the ‘info tasks’ display.
If you do not specify ‘task taskid’ when you set a breakpoint, the breakpoint applies to all tasks of your program.
You can use the
task qualifier on conditional breakpoints as
well; in this case, place ‘task taskid’ before the
breakpoint condition (before the
For more detailed information on the tasking support, see Debugging with GDB.