Reverse debugger, similar to rr or udb.
General usage:
$ sudo apt install -y build-essential $ make clean all # Build test appliance $ cc test-app.c -O0 -o test-app -ggdb3 -Wall # Allow child process to attach to the parent $ echo 0 | sudo tee /proc/sys/kernel/yama/ptrace_scope $ LD_PRELOAD=$PWD/libwrapper.so ./test-app # ... [gdb: 94313, src/wrapper.c:219] Waiting for connection from gdb on 0.0.0.0:4445...Connect with GDB:
(gdb) target remote 0.0.0.0:4445 (gdb) layout src