《深入理解Android虚拟机内存管理》示例程序编译阶段生成的各种语法树完整版
1.tokens
"int" "int"
<SPACES> " "
<IDENTIFIER> "global_a"
<SPACES> " "
"=" "="
<SPACES> " "
<INTEGER> "5"
";" ";"
<SPACES> "\r\n"
"long" "long"
<SPACES> " "
<IDENTIFIER> "global_b"
";" ";"
<SPACES> "\r\n"
"char" "char"
<SPACES> " "
"*" "*"
<SPACES> " "
<IDENTIFIER> "global_c"
<SPACES> " "
"=" "="
<SPACES> " "
"\"" "\"HelloWorld!\""
";" ";"
<SPACES> "\r\n"
"int" "int"
"[" "["
<INTEGER> "5"
"]" "]"
<SPACES> " "
<IDENTIFIER> "global_array"
";" ";"
<SPACES> "\r\n"
"struct" "struct"
<SPACES> " "
<IDENTIFIER> "point"
<SPACES> " "
<IDENTIFIER> "global_struct"
";" ";"
<SPACES> "\r\n"
"struct" "struct"
<SPACES> " "
<IDENTIFIER> "point"
"{" "{"
<SPACES> "\r\n "
"int" "int"
<SPACES> " "
<IDENTIFIER> "x"
";" ";"
<SPACES> "\r\n "
"int" "int"
<SPACES> " "
<IDENTIFIER> "y"
";" ";"
<SPACES> "\r\n"
"}" "}"
";" ";"
<SPACES> "\r\n"
"int" "int"
<SPACES> " "
<IDENTIFIER> "func"
"(" "("
"int" "int"
<SPACES> " "
<IDENTIFIER> "m"
"," ","
<SPACES> " "
"int" "int"
<SPACES> " "
<IDENTIFIER> "n"
")" ")"
"{" "{"
<SPACES> "\r\n "
"int" "int"
<SPACES> " "
<IDENTIFIER> "local_a"
<SPACES> " "
"=" "="
<SPACES> " "
<INTEGER> "4"
";" ";"
<SPACES> "\r\n "
<IDENTIFIER> "local_a"
<SPACES> " "
"=" "="
<SPACES> " "
<IDENTIFIER> "m"
";" ";"
<SPACES> "\r\n "
<IDENTIFIER> "local_a"
<SPACES> " "
"=" "="
<SPACES> " "
<IDENTIFIER> "n"
";" ";"
<SPACES> "\r\n "
"return" "return"
<SPACES> " "
<IDENTIFIER> "local_a"
";" ";"
<SPACES> "\r\n"
"}" "}"
<SPACES> "\r\n"
"int" "int"
<SPACES> " "
<IDENTIFIER> "main"
"(" "("
"int" "int"
<SPACES> " "
<IDENTIFIER> "argc"
"," ","
<SPACES> " "
"char" "char"
"*" "*"
"*" "*"
<SPACES> " "
<IDENTIFIER> "argv"
")" ")"
"{" "{"
<SPACES> "\r\n "
<IDENTIFIER> "func"
"(" "("
<INTEGER> "2"
"," ","
<INTEGER> "3"
")" ")"
";" ";"
<SPACES> "\r\n "
"return" "return"
<SPACES> " "
<INTEGER> "0"
";" ";"
<SPACES> "\r\n"
"}" "}"
<SPACES> "\r\n"
<EOF> ""
2.抽象语法树
<<AST>> (helloworld.cb:1)
variables:
<<DefinedVariable>> (helloworld.cb:1)
name: "global_a"
isPrivate: false
typeNode: int
initializer:
<<IntegerLiteralNode>> (helloworld.cb:1)
typeNode: int
value: 5
<<DefinedVariable>> (helloworld.cb:2)
name: "global_b"
isPrivate: false
typeNode: long
initializer: null
<<DefinedVariable>> (helloworld.cb:3)
name: "global_c"
isPrivate: false
typeNode: char*
initializer:
<<StringLiteralNode>> (helloworld.cb:3)
value: "HelloWorld!"
<<DefinedVariable>> (helloworld.cb:4)
name: "global_array"
isPrivate: false
typeNode: int[5]
initializer: null
<<DefinedVariable>> (helloworld.cb:5)
name: "global_struct"
isPrivate: false
typeNode: struct point
initializer: null
functions:
<<DefinedFunction>> (helloworld.cb:10)
name: "func"
isPrivate: false
params:
parameters:
<<Parameter>> (helloworld.cb:10)
name: "m"
typeNode: int
<<Parameter>> (helloworld.cb:10)
name: "n"
typeNode: int
body:
<<BlockNode>> (helloworld.cb:10)
variables:
<<DefinedVariable>> (helloworld.cb:11)
name: "local_a"
isPrivate: false
typeNode: int
initializer:
<<IntegerLiteralNode>> (helloworld.cb:11)
typeNode: int
value: 4
stmts:
<<ExprStmtNode>> (helloworld.cb:12)
expr:
<<AssignNode>> (helloworld.cb:12)
lhs:
<<VariableNode>> (helloworld.cb:12)
name: "local_a"
rhs:
<<VariableNode>> (helloworld.cb:12)
name: "m"
<<ExprStmtNode>> (helloworld.cb:13)
expr:
<<AssignNode>> (helloworld.cb:13)
lhs:
<<VariableNode>> (helloworld.cb:13)
name: "local_a"
rhs:
<<VariableNode>> (helloworld.cb:13)
name: "n"
<<ReturnNode>> (helloworld.cb:14)
expr:
<<VariableNode>> (helloworld.cb:14)
name: "local_a"
<<DefinedFunction>> (helloworld.cb:16)
name: "main"
isPrivate: false
params:
parameters:
<<Parameter>> (helloworld.cb:16)
name: "argc"
typeNode: int
<<Parameter>> (helloworld.cb:16)
name: "argv"
typeNode: char**
body:
<<BlockNode>> (helloworld.cb:16)
variables:
stmts:
<<ExprStmtNode>> (helloworld.cb:17)
expr:
<<FuncallNode>> (helloworld.cb:17)
expr:
<<VariableNode>> (helloworld.cb:17)
name: "func"
args:
<<IntegerLiteralNode>> (helloworld.cb:17)
typeNode: int
value: 2
<<IntegerLiteralNode>> (helloworld.cb:17)
typeNode: int
value: 3
<<ReturnNode>> (helloworld.cb:18)
expr:
<<IntegerLiteralNode>> (helloworld.cb:18)
typeNode: int
value: 0
3.中间代码
<<IR>> (helloworld.cb:1)
variables:
<<DefinedVariable>> (helloworld.cb:1)
name: global_a
isPrivate: false
type: int
initializer:
<<Int>>
type: INT32
value: 5
<<DefinedVariable>> (helloworld.cb:2)
name: global_b
isPrivate: false
type: long
initializer: null
<<DefinedVariable>> (helloworld.cb:3)
name: global_c
isPrivate: false
type: char*
initializer:
<<Str>>
type: INT32
entry: net.loveruby.cflat.entity.ConstantEntry@13fd745
<<DefinedVariable>> (helloworld.cb:4)
name: global_array
isPrivate: false
type: int[5]
initializer: null
<<DefinedVariable>> (helloworld.cb:5)
name: global_struct
isPrivate: false
type: struct point
initializer: null
functions:
<<DefinedFunction>> (helloworld.cb:10)
name: func
isPrivate: false
type: int(int, int)
body:
<<Assign>> (helloworld.cb:11)
lhs:
<<Addr>>
type: INT32
entity: local_a
rhs:
<<Int>>
type: INT32
value: 4
<<Assign>> (helloworld.cb:12)
lhs:
<<Addr>>
type: INT32
entity: local_a
rhs:
<<Var>>
type: INT32
entity: m
<<Assign>> (helloworld.cb:13)
lhs:
<<Addr>>
type: INT32
entity: local_a
rhs:
<<Var>>
type: INT32
entity: n
<<Return>> (helloworld.cb:14)
expr:
<<Var>>
type: INT32
entity: local_a
<<DefinedFunction>> (helloworld.cb:16)
name: main
isPrivate: false
type: int(int, char**)
body:
<<ExprStmt>> (helloworld.cb:17)
expr:
<<Call>>
type: INT32
expr:
<<Addr>>
type: INT32
entity: func
args:
<<Int>>
type: INT32
value: 2
<<Int>>
type: INT32
value: 3
<<Return>> (helloworld.cb:18)
expr:
<<Int>>
type: INT32
value: 0
4.汇编代码
.file "helloworld.cb"
.data
.globl global_a
.align 4
.type global_a,@object
.size global_a,4
global_a:
.long 5
.globl global_c
.align 4
.type global_c,@object
.size global_c,4
global_c:
.long .LC0
.section .rodata
.LC0:
.string "HelloWorld!"
.text
.globl func
.type func,@function
func:
pushl %ebp
movl %esp, %ebp
subl $4, %esp
movl $4, %eax
movl %eax, -4(%ebp)
movl 8(%ebp), %eax
movl %eax, -4(%ebp)
movl 12(%ebp), %eax
movl %eax, -4(%ebp)
movl -4(%ebp), %eax
jmp .L0
.L0:
movl %ebp, %esp
popl %ebp
ret
.size func,.-func
.globl main
.type main,@function
main:
pushl %ebp
movl %esp, %ebp
movl $3, %eax
pushl %eax
movl $2, %eax
pushl %eax
call func
addl $8, %esp
movl $0, %eax
jmp .L1
.L1:
movl %ebp, %esp
popl %ebp
ret
.size main,.-main
.comm global_b,4,4
.comm global_array,20,4
.comm global_struct,8,8
《深入理解Android虚拟机内存管理》示例程序编译阶段生成的各种语法树完整版的更多相关文章
- 自己写的书《深入理解Android虚拟机内存管理》,不出版只是写着玩
百度网盘地址:https://pan.baidu.com/s/1jI4xZgE 我给起的书名叫做<深入理解Android虚拟机内存管理>.本书分为两个部分,前半部分主要是我对Linux0. ...
- 深入理解Java虚拟机—内存管理机制
前面说过了类的加载机制,里面讲到了类的初始化中时用到了一部分内存管理的知识,这里让我们来看下Java虚拟机是如何管理内存的. 先让我们来看张图 有些文章中对线程隔离区还称之为线程独占区,其实是一个意思 ...
- 理解Android虚拟机体系结构
1 什么是Dalvik虚拟机 Dalvik是Google公司自己设计用于Android平台的Java虚拟机,它是Android平台的重要组成部分,支持dex格式(Dalvik Executable)的 ...
- 理解Android虚拟机体系结构(转)
1 什么是Dalvik虚拟机 Dalvik是Google公司自己设计用于Android平台的Java虚拟机,它是Android平台的重要组成部分,支持dex格式(Dalvik Executable)的 ...
- Android 之 内存管理-查看内存泄露(三)
概述 在android的开发中,要时刻主要内存的分配和垃圾回收,因为系统为每一个dalvik虚拟机分配的内存是有限的,在google的G1中,分配的最大堆大小只有16M,后来的机器一般都为24M,实在 ...
- 深入理解C语言内存管理
之前在学Java的时候对于Java虚拟机中的内存分布有一定的了解,但是最近在看一些C,发现居然自己对于C语言的内存分配了解的太少. 问题不能拖,我这就来学习一下吧,争取一次搞定. 在任何程序设计环境及 ...
- Android Dalvikvm 内存管理理解
网上非常多文件介绍了 jvm 内存管理的理论,但在 Dalvikvm 中,到底是怎样实现的. 这几天猛看了 Dalvikvm 的源码,说一下我的理解: 在大层面上讲跟理论一样,jvm 把内存分成了一些 ...
- 深入理解java虚拟机---java虚拟机内存管理(五)
1.深入理解java虚拟机 总图: 1.线程共享区: 2.线程独占区: 1.程序计数器 理解为当前线程锁执行的字节码的行号指示器,程序计数器没有内存异常错误.
- davlik虚拟机内存管理之一——内存分配
转载自http://www.miui.com/thread-74715-1-1.html dalvik虚拟机是Google在Android平台上的Java虚拟机的实现,内存管理是dalvik虚拟机中的 ...
随机推荐
- 一个电商项目的Web服务化改造7:Dubbo服务的调用,4个项目
使用dubbo服务的过程,很简单,和之前学习的WebService完全一样,和本地接口调用也基本一致. dubbo和WebService的区别:我认为dubbo就是封装了WebService,然后提供 ...
- IDEA 工具使用报错总结
读前语:此文章仅给非入门级观看 1.使用Debug 无法运行,而使用Run 则正常启动,报错代码如下 1 Error running 'jx_web': Unable to open debugge ...
- VI 快捷操作 【持续更新】
2014-9-23 一. 大小写转换 vim中大小写转化的命令是 gu或者gU 形象一点的解释就是小u意味着转为小写:大U意味着转为大写. 剩下的就是对这两个命令的限定(限定操作的行,字母,单词) ...
- 一键解决ScrollView嵌套ListView仅仅显示一行的问题
/** * 解决ScrollView嵌套ListView仅仅显示一行的问题 * * @param listView */ private void setListViewHeightBasedOnCh ...
- ASP.NET MVC 4源代码分析之怎样定位控制器
利用少有的空余时间.具体的浏览了下ASP.NET MVC 4的源代码.照着之前的步伐继续前进(尽管博客园已经存在非常多大牛对MVC源代码分析的博客,可是从个人出发.还是希望自己可以摸索出这些). 首先 ...
- Linux 大规模请求server连接数相关设置
一般一个大规模Linuxserver请求数可能是几十万上百万的情况.须要足够的连接数来使用,所以务必进行对应的设置. 默认的Linuxserver文件描写叙述符等打开最大是1024.用ulimit - ...
- [Cypress] Test XHR Failure Conditions with Cypress
Testing your application’s behavior when an XHR call results in an error can be difficult. The use o ...
- IntelliJ IDEA 问题总结之二(待补充) —— 快捷键、主题样式、导出jar、sqlite
随着对idea的使用,问题越来越多,開始第二篇问题总结. 1.快捷键. 用惯了eclipse再用idea后,快捷键就是一个大问题. 并且网上idea的快捷键有非常多版本号.不知道是不是老版本号和新版本 ...
- Hadoop Web项目--Mahout0.10 MR算法集锦
1. 涉及技术及下载 项目开发使用到的软件有:Myeclipse2014,JDK1.8.Hadoop2.6,MySQL5.6.EasyUI1.3.6,jQuery2.0,Spring4.1.3,Hib ...
- Python 下的数据结构实现
既然采用了 Python 编程语言实现数据结构,就要充分发挥 Python 语言的语法特性. 参考<Python 算法教程><数据结构与算法 -- Python 语言描述>: ...