PSTACK(1) Linux Programmer’s Manual PSTACK(1)
pstack - print a stack trace of running processes
pstack pid [...]
pstack attaches to the active processes named by the pids on the com-
mand line, and prints out an execution stack trace, including a hint at
what the function arguments are. If symbols exist in the binary (usu-
ally the case unless you have run strip(1)), then symbolic addresses
are printed as well.
If the process is part of a thread group, then pstack will print out a
stack trace for each of the threads in the group.
pstack currently works only on Linux, only on an x86 machine running 32
bit ELF binaries (64 bit not supported). Also, for symbolic informa-
tion, you need to use a GNU compiler to generate your program, and you
can’t strip symbols from the binaries. For thread information to be
dumped, you have to use the debug-aware version of the LinuxThreads
libpthread.so library. (To check, run nm(1) on your pthreads library,
and make sure that the symbol "__pthread_threads_debug" is defined.)
Threads are not supported with the newer NPTL libpthread.so library.
Ross Thompson <firstname.lastname@example.org>
Red Hat, Inc. <http://bugzilla.redhat.com/bugzilla>
Red Hat Linux Feb 25 2002 PSTACK(1)
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