Sun Studio 12: Debugging a Program With dbx

`threads` Command

The threads command lists all threads.

Native Mode Syntax

threads: Print the list of all known threads.
threads -all: Print threads normally not printed (zombies).
threads -mode all|filter: Controls whether all threads are printed or threads are filtered. The default is to filter threads. When filtering is on, threads that have been hidden by the thread -hide command are not listed.
threads -mode auto|manual: Under the dbx Debugger, enables automatic updating of the thread listing.
threads -mode: Echo the current modes.

Each line of information is composed of the following:

An * (asterisk) indicating that an event requiring user attention has occurred in this thread. Usually this is a breakpoint.

An ”o’ instead of an asterisk indicates that a dbx internal event has occurred.
An > (arrow) denoting the current thread.
t@num, the thread id, referring to a particular thread. The number is the thread_t value passed back by thr_create.
b l@num meaning the thread is bound (currently assigned to the designated LWP), or a l@num meaning the thread is active (currently scheduled to run).
The “Start function” of the thread as passed to thr_create. A ?() means that the start function is not known.
The thread state, which is one of the following:
- monitor
- running
- sleeping
- wait
- unknown
- zombie
The function that the thread is currently executing.

threads: Print the list of all known threads.
threads -all: Print threads normally not printed (zombies).
threads -mode all|filter: Controls whether all threads are printed or threads are filtered. The default is to filter threads.
threads -mode auto|manual: Under the dbx Debugger, enables automatic updating of the thread listing.
threads -mode: Echo the current modes.

Each line of information in the listing is composed of the following: