Problem

gdb warns about unhandled signal:

Program received signal SIGILL, illegal instruction.

The solutio is to add a signal handler

handle SIGILL pass nostop noprint

log to file

ASAN_OPTIONS="log_path=asan.log" ./a.out

full docs: https://github.com/google/sanitizers/wiki/AddressSanitizerFlags

globally for the CMakeLists.txt project:

add_compile_options(-fsanitize=address)
add_link_options(-fsanitize=address)

for a target:

target_compile_options(<build-target> PRIVATE -fsanitize=address)
target_link_options(<build-target> PRIVATE -fsanitize=address)