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c [2024/07/11 17:01] – ninec [2025/08/04 13:05] (current) – nine
Line 27: Line 27:
   target_compile_options(<build-target> PRIVATE -fsanitize=address)   target_compile_options(<build-target> PRIVATE -fsanitize=address)
   target_link_options(<build-target> PRIVATE -fsanitize=address)   target_link_options(<build-target> PRIVATE -fsanitize=address)
 +
 +==== tsan ====
 +
 +Problem when executing a binary:
 +  FATAL: ThreadSanitizer: unexpected memory mapping 0x5a36aaebd000-0x5a36aafd2000
 +
 +
 +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>
c.1720717307.txt.gz · Last modified: 2024/07/11 17:01 by nine