This PR removes the implementation of attach type replace in the attach manager, and modifies tests that shipped with replace to override.
Replace and filter were unified to override now. The override callback was performed before the hooked function's execution. It has access to the arguments, and could override the return value of the hooked function using bpftime_set_retval. If bpftime_set_retval was called, the original function will not be executed. Otherwise, the execution of the hooked function was not affected.
This PR removes the implementation of attach type replace in the attach manager, and modifies tests that shipped with replace to override.
Replace and filter were unified to override now. The override callback was performed before the hooked function's execution. It has access to the arguments, and could override the return value of the hooked function using
bpftime_set_retval. Ifbpftime_set_retvalwas called, the original function will not be executed. Otherwise, the execution of the hooked function was not affected.Closes #112