sometime it's necessary to pause for every catched syscalls. for example, if a process create a file then delete it immediately, it would be nice if we can pause on the 'unlink' syscall, then examine the content of the to-be-deleted file.
That is possible by strace -e inject=unlink:signal=STOP since strace 4.16.
strace -e inject=unlink:signal=STOP
That is possible by
strace -e inject=unlink:signal=STOPsince strace 4.16.