Debugging tools in Linux are in a really sad state indeed, certainly for collecting intel on production machines when crashes happen. Ironically the kernel is a

Debugging tools in Linux are in a really sad state indeed, certainly for collecting intel on production machines when crashes happen. Ironically the kernel is almost advanced here, because at least you can rely on the stacktrace working. In userland, there is ancient stuff like libunwind - last I tried it on ARM, it was too dumb to follow the instruction pointer on a NULL function call. Not to mention there is some sort of deadlock when you use an external crashdump handler - the crashed process hangs in the kernel trying to feed your handler the dump and that interferes with using ptrace to find out what happened. The only reliable way is to put the crash handling hooks directly into libc, like Android does it - but that is not a thing at all with musl/glibc.