[solved] heaptrc mem leak tutorial
lazarus / 12-Debugger

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anonymousstranger · 2018-08-30 18:10

Is there an updated and current tutorial on how to use heaptrc to find
memory leaks (including setup)? All the tutorials I've been able to
find use previous versions of lazarus, which renders them mostly
unhelpful. If not, could someone help me with this? I'm using v1.8.4
with fpc 3.0.4 i386 win32/win64.

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ASerge · 2018-08-30 18:25

Quote from: anonymousstranger on August 30, 2018, 08:10:48 pm...how to
use heaptrc to find memory leaks (including setup)?
Project Options/Compiler Options/Debugger/Use Heaptrc unit (check for
mem-leaks) (-gh)

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Martin_fr · 2018-08-30 18:47

https://www.freepascal.org/docs-
html/3.0.0/rtl/heaptrc/environment.html

You also may want to set a logfile (Menu Run > Run Param). You can
then load the logfile *.trc in the "Leak and Traces" which you find in
the view menu.

If you get memory corruption (rather than leaks), then also use
keepreleased. Otherwise this is not needed.

On Linux, there is an alternative named valgrind. It is outside the
IDE, and goes way beyond just leaks. But it needs some reading up.

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anonymousstranger · 2018-08-30 19:03

Thanks

Just found this too:
http://wiki.lazarus.freepascal.org/leakview

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avra · 2018-08-30 21:23

http://wiki.lazarus.freepascal.org/heaptrc