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sched: implement passing arguments to user-mode threads

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max 🍓
2026-02-19 19:04:00 +00:00
parent b188573eea
commit 291a5f677e
3 changed files with 82 additions and 6 deletions
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41
kernel/bsp.c
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@@ -179,15 +179,52 @@ kern_status_t bsp_launch_async(struct bsp *bsp, struct task *task)
return status;
}
status = vm_region_map_object(
task->t_address_space,
VM_REGION_ANY_OFFSET,
bsp->bsp_vmo,
0,
bsp->bsp_trailer.bsp_exec_offset,
VM_PROT_READ | VM_PROT_USER,
&bsp_data_base);
if (status != KERN_OK) {
return status;
}
status = map_executable(bsp, task, &entry);
if (status != KERN_OK) {
return status;
}
#ifdef TRACE
vm_region_dump(task->t_address_space, 0);
vm_region_dump(task->t_address_space);
#endif
sp = stack_buffer + BOOTSTRAP_STACK_SIZE;
tracek("bootstrap: entry=%llx, sp=%llx", entry, sp);
kern_handle_t self, self_address_space;
task_open_handle(task, &task->t_base, 0, &self);
task_open_handle(
task,
&task->t_address_space->vr_base,
0,
&self_address_space);
const uintptr_t args[] = {
0, // int argc
0, // const char ** argv
self, // kern_handle_t task
self_address_space, // kern_handle_t address_space
/* this parameter is specific to the bsp bootstrap program, so
* that it can access the rest of the bsp image. */
bsp_data_base,
};
const size_t nr_args = sizeof args / sizeof args[0];
struct thread *init_thread = task_create_thread(task);
thread_init_user(init_thread, entry, sp);
thread_init_user(init_thread, entry, sp, args, nr_args);
schedule_thread_on_cpu(init_thread);
return KERN_OK;