Pstack a process on OSX 10.9

Question

On linux in order to view the process stack at a given time we generally use

pstack <pid>

I am wondering what is the equivalent of the same in osx.

thanks

chw1k · Accepted Answer · 2017-04-06T08:40:52.330

9

sudo /usr/libexec/stackshot -i -u -p <pid>

This appends a stack trace of all threads of the process in question to the file /Library/Logs/stackshot-syms.log . Consider to remove the file stackshot-syms.log before calling stackshot. See: stackshot(1)

Note: stackshot is no longer included with OS X 10.11 EL Capitan. Use the lldb debugger instead:

echo "thread backtrace all" | lldb -p <pid>

lldb is part of the command line developer tools. If you don't have lldb on your machine, a popup will help with installing XCode.

edited Apr 06 '17 at 08:40

answered Aug 04 '14 at 08:23

chw1k

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how do you get stackshot? It doesn't seem to be in my environment (El Capitan) – slashdottir Mar 10 '16 at 00:50
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The difference I observe is that this "lldb" command will terminate the pid you're observing, while pstack doesn't. – Lucian Wischik Oct 04 '18 at 17:41

score 1 · Answer 2 · answered Feb 02 '22 at 18:40

1

Appears "an" equivalent is the sample command in OS X:

sample <pid> 0 takes a single stacktrace sample.

answered Feb 02 '22 at 18:40

rogerdpack

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Pstack a process on OSX 10.9

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