Many applications benefit from the ability to intercept, block, or modify system calls efficiently. Binary rewriting is one of the fastest techniques to achieve this, but it often relies on instruction-dependent heuristics that limit its applicability. To date, exhaustive rewriting techniques (introduced by zpoline) are only available for x86-64 ISA. This work introduces vpoline, the first fully heuristics-free system call interception library for RISC-V. By leveraging the RISC-V linker relaxation mechanism, vpoline achieves the same benefits as zpoline while overcoming the intrinsic limitation of requiring privileged access.