diff options
| -rw-r--r-- | src/arch/riscv/process.cc | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/src/arch/riscv/process.cc b/src/arch/riscv/process.cc index c1a67ec15..4eb3159af 100644 --- a/src/arch/riscv/process.cc +++ b/src/arch/riscv/process.cc @@ -217,7 +217,13 @@ RiscvLiveProcess::argsInit(int pageSize) RiscvISA::IntReg RiscvLiveProcess::getSyscallArg(ThreadContext *tc, int &i) { - return tc->readIntReg(SyscallArgumentRegs[i++]); + // RISC-V only has four system call argument registers by convention, so + // if a larger index is requested return 0 + RiscvISA::IntReg retval = 0; + if (i < 4) + retval = tc->readIntReg(SyscallArgumentRegs[i]); + i++; + return retval; } void |