> For the complete documentation index, see [llms.txt](https://book.bsdcn.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://book.bsdcn.org/man/man9/vm_map_insert.9.md).

# vm\_map\_insert.9

`vm_map_insert` — 将一个对象插入到映射中

## 名称

`vm_map_insert`

## 概要

```c
#include <sys/param.h>
#include <vm/vm.h>
#include <vm/vm_map.h>

int
vm_map_insert(vm_map_t map, vm_object_t object, vm_ooffset_t offset,
    vm_offset_t start, vm_offset_t end, vm_prot_t prot,
    vm_prot_t max, int cow)
```

## 描述

`vm_map_insert` 函数将整个 vm\_object `object` 的映射插入到目标映射 `map` 中。

`offset` 参数指定 `object` 中开始映射的偏移量。对象的大小应与指定的地址范围匹配。

`start` 和 `end` 参数指定 `map` 地址空间中映射对象窗口的边界。

`cow` 参数指定应传播到新条目的标志，例如用于指示这是一个写时复制（copy-on-write）映射。

## 实现说明

此函数通过调用内部函数 `vm_map_entry_create` 隐式创建一个新的 `vm_map_entry`。

## 返回值

`vm_map_insert` 函数在映射可以成功创建时返回 `KERN_SUCCESS`。

否则，如果找不到范围的起始处，将返回 `KERN_INVALID_ADDRESS`；如果该范围是现有条目的一部分或与映射的末尾重叠，则返回 `KERN_NO_SPACE`。

## 参见

[vm\_map(9)](/man/man9/vm_map.9.md)

## 作者

本手册页由 Bruce M Simpson <bms@spc.org> 编写。


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://book.bsdcn.org/man/man9/vm_map_insert.9.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.