《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)

isPrivate: false

typeNode: int

initializer:

<<IntegerLiteralNode>> (helloworld.cb:1)

typeNode: int

value: 5

<<DefinedVariable>> (helloworld.cb:2)

isPrivate: false

typeNode: long

initializer: null

<<DefinedVariable>> (helloworld.cb:3)

isPrivate: false

typeNode: char*

initializer:

<<StringLiteralNode>> (helloworld.cb:3)

value: "HelloWorld!"

<<DefinedVariable>> (helloworld.cb:4)

isPrivate: false

typeNode: int[5]

initializer: null

<<DefinedVariable>> (helloworld.cb:5)

isPrivate: false

typeNode: struct point

initializer: null

functions:

<<DefinedFunction>> (helloworld.cb:10)

isPrivate: false

params:

parameters:

<<Parameter>> (helloworld.cb:10)

typeNode: int

<<Parameter>> (helloworld.cb:10)

typeNode: int

body:

<<BlockNode>> (helloworld.cb:10)

variables:

<<DefinedVariable>> (helloworld.cb:11)

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)

rhs:

<<VariableNode>> (helloworld.cb:12)

<<ExprStmtNode>> (helloworld.cb:13)

expr:

<<AssignNode>> (helloworld.cb:13)

lhs:

<<VariableNode>> (helloworld.cb:13)

rhs:

<<VariableNode>> (helloworld.cb:13)

<<ReturnNode>> (helloworld.cb:14)

expr:

<<VariableNode>> (helloworld.cb:14)

<<DefinedFunction>> (helloworld.cb:16)

isPrivate: false

params:

parameters:

<<Parameter>> (helloworld.cb:16)

typeNode: int

<<Parameter>> (helloworld.cb:16)

typeNode: char**

body:

<<BlockNode>> (helloworld.cb:16)

variables:

stmts:

<<ExprStmtNode>> (helloworld.cb:17)

expr:

<<FuncallNode>> (helloworld.cb:17)

expr:

<<VariableNode>> (helloworld.cb:17)

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)

isPrivate: false

type: int

initializer:

<<Int>>

type: INT32

value: 5

<<DefinedVariable>> (helloworld.cb:2)

isPrivate: false

type: long

initializer: null

<<DefinedVariable>> (helloworld.cb:3)

isPrivate: false

type: char*

initializer:

<<Str>>

type: INT32

entry: net.loveruby.cflat.entity.ConstantEntry@13fd745

<<DefinedVariable>> (helloworld.cb:4)

isPrivate: false

type: int[5]

initializer: null

<<DefinedVariable>> (helloworld.cb:5)

isPrivate: false

type: struct point

initializer: null

functions:

<<DefinedFunction>> (helloworld.cb:10)

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)

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

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