I am trying to find an elusive crash using #AddressSanitizer. It hasn't been used on this project since basically ever, and, how should I put this...

Aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

#GameDev

TIL: calling munmap() with wrong parameters can cause really strange occasional crashes in #AddressSanitizer or #Valgrind. Wrong parameters meaning in this case:
- passing wrong (too large) size,
- passing NULL,
- calling munmap() multiple times for the same pointer.

Debugging the crashes was painful. What helped in the end was "doing the boring right thing": adding error checking to all related system calls, adding debug logs, fixing code smells.

#softwareDevelopment #Linux #mmap

Has anyone managed to get the print_cmdline option working for MSVC's Address Sanitizer? When it comes to msvc asan I can never tell whether I haven't jumped through enough hoops or they haven't gotten round to implementing it

https://developercommunity.visualstudio.com/t/The-print_cmdline-option-in-ASAN_OPTIONS/10690490

#asan #msvc #cplusplus #addresssanitizer #addresssanitizerasan #debugging #softwaredevelopment #visualstudio

We posted another thing!

https://security.googleblog.com/2024/03/address-sanitizer-for-bare-metal.html

#addresssanitizer #firmware #security #cybersecurity #fuzzing #memorysafety #android #androidsecurity

CppNow 2024 Session Announcement

What does it take to implement the standard library? by Christopher Di Bella

https://schedule.cppnow.org/session/what-does-it-take-to-implement-the-standard-library/

Register today at cppnow.org/registration

#Abi #AddressSanitizer #Algorithms #API #Asan #Build
#CProgramming

Lately I've been working with projects written in C that utilize the GNU Autotools build system. I've found that I often want to change their configuration slightly (e.g. add AddressSanitizer to check for leaks) without discarding the current one. So I wrote a tiny interactive Bash script to make my life a little easier.

(EDIT: inline tags look weird - moved)

#C #GNU #Autotools #Automake #AddressSanitizer #Bash