Re: DTrace and C++ function
Re: DTrace and C++ function
- Subject: Re: DTrace and C++ function
- From: Eric Gouriou <email@hidden>
- Date: Mon, 24 Dec 2007 18:10:21 -0800
On Dec 22, 2007, at 12:43 PM, Dmitry Markman wrote:
do you know how i can set -xmangled from Instruments application?
Here is an undocumented way.
In the DATA section of a custom DTrace instrument, add:
#pragma D option mangled
This is the equivalent of -xmangled, from within the script. I am
not sure
of the consequences of setting this option on other instruments that
might
be instantiated in the same run.
Eric
On Dec 22, 2007, at 1:59 PM, Eric Gouriou wrote:
On Dec 21, 2007, at 7:02 PM, Dmitry Markman wrote:
I should use *test_cpp*
Terry mentioned regular expression, so I thought I have to
use .*test_cpp.*
but that didn'r work
Indeed DTrace understands glob patterns, not regular expressions.
man dtrace has examples of ObjC probes using such patterns.
The idiomatic way to match :: is to use ??.
I''ll also add that -xmangled was added to switch DTrace to use the
mangled representation instead of the default demangled one. It can
be very useful for C++ work.
This article might also be of interest:
<http://developers.sun.com/solaris/articles/dtrace_cc.html>
Although it looks like the default there is to use mangled names.
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