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--- c [2024/07/18 14:15] – adds tsan ASLR workaround nine
+++ c [2025/08/04 13:05] (current) – nine
@@ Line 36: / Line 36: @@
 Sulution, disable ASLR for testing:
   setarch --addr-no-randomize build/path/to/binary
+or:
+  sudo sysctl vm.mmap_rnd_bits=30   # 30: partly, 28 totally
+==== alternatives ====
+declare alternatives:
+<code>
+sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-12 20
+sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-12 20
+sudo update-alternatives --install /usr/bin/gcov gcov /usr/bin/gcov-12 20
+sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-13 30
+sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-13 30
+sudo update-alternatives --install /usr/bin/gcov gcov /usr/bin/gcov-13 30
+</code>
+select the right alternatives:
+<code>
+sudo update-alternatives --config gcc
+sudo update-alternatives --config g++
+sudo update-alternatives --config gcov
+</code>