| 75 | } |
| 76 | |
| 77 | auto InitTaskContext(cpu_io::CalleeSavedContext* task_context, |
| 78 | void (*entry)(void*), void* arg, uint64_t stack_top) |
| 79 | -> void { |
| 80 | // 清零上下文 |
| 81 | std::memset(task_context, 0, sizeof(cpu_io::CalleeSavedContext)); |
| 82 | |
| 83 | task_context->ReturnAddress() = |
| 84 | reinterpret_cast<uint64_t>(kernel_thread_entry); |
| 85 | task_context->EntryFunction() = reinterpret_cast<uint64_t>(entry); |
| 86 | task_context->EntryArgument() = reinterpret_cast<uint64_t>(arg); |
| 87 | task_context->StackPointer() = stack_top; |
| 88 | } |
| 89 | |
| 90 | auto InitTaskContext(cpu_io::CalleeSavedContext* task_context, |
| 91 | cpu_io::TrapContext* trap_context_ptr, uint64_t stack_top) |