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More info on the symbols extraction

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emanuele-f 2020-02-13 19:01:56 +01:00
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13
doc/README.leaks_detector.md
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@ -1,6 +1,8 @@
ntopng can be built with the support for the LLVM leaks sanitizer (https://clang.llvm.org/docs/LeakSanitizer.html).
The detector also identifies invalid memory accesses. The performance impact of running the address sanitizer is about
a 2x slowdown (https://clang.llvm.org/docs/AddressSanitizer.html).
It is advisable to also build nDPI with the leaks sanitizer support.
It is advisable to also build nDPI with the leaks sanitizer support to get clean stack traces.
```
cd ~/nDPI
@ -16,5 +18,12 @@ In order to enable the leaks sanitizer, it is necessary to set the `ASAN_OPTIONS
environment variable, for example with:
```
sudo ASAN_OPTIONS=detect_leaks=1 ./ntopng /etc/ntopng/ntopng.conf
sudo ASAN_OPTIONS=detect_leaks=1 ./ntopng /etc/ntopng/ntopng.conf 2>sanitizer.log
```
Note: on some old clang implementations it's necessary to manually resolve the symbols with:
```
# https://llvm.org/svn/llvm-project/compiler-rt/trunk/lib/asan/scripts/asan_symbolize.py
asan_symbolize.py / < sanitizer.log | c++filt
``