From 2162005745bb6d16524da9fe293bd1d2e243ed56 Mon Sep 17 00:00:00 2001 From: jiulinxiri Date: Tue, 14 Dec 2021 09:36:26 +0800 Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=94=B9=E9=A1=B9=E7=9B=AE=E7=BB=93?= =?UTF-8?q?=E6=9E=84?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../Contents.swift | 5 + 01 注释.playground/contents.xcplayground | 4 + .../contents.xcworkspacedata | 0 .../UserInterfaceState.xcuserstate | Bin 0 -> 13435 bytes .../xcschemes/xcschememanagement.plist | 2 +- .../Contents.swift | 4 + .../contents.xcplayground | 4 + .../contents.xcworkspacedata | 7 ++ .../UserInterfaceState.xcuserstate | Bin 0 -> 11995 bytes .../Contents.swift | 4 + .../contents.xcplayground | 4 + .../contents.xcworkspacedata | 7 ++ .../UserInterfaceState.xcuserstate | Bin 0 -> 12001 bytes .../Contents.swift | 4 + 04 函数.playground/contents.xcplayground | 4 + .../contents.xcworkspacedata | 7 ++ .../UserInterfaceState.xcuserstate | Bin 0 -> 11939 bytes .../Contents.swift | 4 + 05 枚举.playground/contents.xcplayground | 4 + .../contents.xcworkspacedata | 7 ++ .../UserInterfaceState.xcuserstate | Bin 0 -> 11906 bytes .../Contents.swift | 6 +- 06 可选项.playground/contents.xcplayground | 4 + .../contents.xcworkspacedata | 7 ++ .../UserInterfaceState.xcuserstate | Bin 0 -> 11937 bytes README.md | 87 +++++++++--------- .../Contents.swift | 7 -- SwiftStudy.playground/contents.xcplayground | 12 --- .../UserInterfaceState.xcuserstate | Bin 33309 -> 0 bytes 29 files changed, 129 insertions(+), 65 deletions(-) rename {SwiftStudy.playground/Pages/01 注释.xcplaygroundpage => 01 注释.playground}/Contents.swift (84%) create mode 100644 01 注释.playground/contents.xcplayground rename {SwiftStudy.playground => 01 注释.playground}/playground.xcworkspace/contents.xcworkspacedata (100%) create mode 100644 01 注释.playground/playground.xcworkspace/xcuserdata/jiulinxiri.xcuserdatad/UserInterfaceState.xcuserstate rename {SwiftStudy.playground => 01 注释.playground}/xcuserdata/jiulinxiri.xcuserdatad/xcschemes/xcschememanagement.plist (87%) rename {SwiftStudy.playground/Pages/02 数据类型.xcplaygroundpage => 02 数据类型.playground}/Contents.swift (98%) create mode 100644 02 数据类型.playground/contents.xcplayground create mode 100644 02 数据类型.playground/playground.xcworkspace/contents.xcworkspacedata create mode 100644 02 数据类型.playground/playground.xcworkspace/xcuserdata/jiulinxiri.xcuserdatad/UserInterfaceState.xcuserstate rename {SwiftStudy.playground/Pages/03 流程控制.xcplaygroundpage => 03 流程控制.playground}/Contents.swift (98%) create mode 100644 03 流程控制.playground/contents.xcplayground create mode 100644 03 流程控制.playground/playground.xcworkspace/contents.xcworkspacedata create mode 100644 03 流程控制.playground/playground.xcworkspace/xcuserdata/jiulinxiri.xcuserdatad/UserInterfaceState.xcuserstate rename {SwiftStudy.playground/Pages/04 函数.xcplaygroundpage => 04 函数.playground}/Contents.swift (99%) create mode 100644 04 函数.playground/contents.xcplayground create mode 100644 04 函数.playground/playground.xcworkspace/contents.xcworkspacedata create mode 100644 04 函数.playground/playground.xcworkspace/xcuserdata/jiulinxiri.xcuserdatad/UserInterfaceState.xcuserstate rename {SwiftStudy.playground/Pages/05 枚举.xcplaygroundpage => 05 枚举.playground}/Contents.swift (98%) create mode 100644 05 枚举.playground/contents.xcplayground create mode 100644 05 枚举.playground/playground.xcworkspace/contents.xcworkspacedata create mode 100644 05 枚举.playground/playground.xcworkspace/xcuserdata/jiulinxiri.xcuserdatad/UserInterfaceState.xcuserstate rename {SwiftStudy.playground/Pages/06 可选项.xcplaygroundpage => 06 可选项.playground}/Contents.swift (99%) create mode 100644 06 可选项.playground/contents.xcplayground create mode 100644 06 可选项.playground/playground.xcworkspace/contents.xcworkspacedata create mode 100644 06 可选项.playground/playground.xcworkspace/xcuserdata/jiulinxiri.xcuserdatad/UserInterfaceState.xcuserstate delete mode 100644 SwiftStudy.playground/Pages/Untitled Page.xcplaygroundpage/Contents.swift delete mode 100644 SwiftStudy.playground/contents.xcplayground delete mode 100644 SwiftStudy.playground/playground.xcworkspace/xcuserdata/jiulinxiri.xcuserdatad/UserInterfaceState.xcuserstate diff --git a/SwiftStudy.playground/Pages/01 注释.xcplaygroundpage/Contents.swift b/01 注释.playground/Contents.swift similarity index 84% rename from SwiftStudy.playground/Pages/01 注释.xcplaygroundpage/Contents.swift rename to 01 注释.playground/Contents.swift index 66d3867..f77cd64 100644 --- a/SwiftStudy.playground/Pages/01 注释.xcplaygroundpage/Contents.swift +++ b/01 注释.playground/Contents.swift @@ -1,5 +1,10 @@ import UIKit +var greeting = "Hello, playground" + + +import UIKit + // 注释的几种类型 // 单行注释 diff --git a/01 注释.playground/contents.xcplayground b/01 注释.playground/contents.xcplayground new file mode 100644 index 0000000..cf026f2 --- /dev/null +++ b/01 注释.playground/contents.xcplayground @@ -0,0 +1,4 @@ + + + + \ No 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from SwiftStudy.playground/Pages/04 函数.xcplaygroundpage/Contents.swift rename to 04 函数.playground/Contents.swift index 590ad7a..d554c62 100644 --- a/SwiftStudy.playground/Pages/04 函数.xcplaygroundpage/Contents.swift +++ b/04 函数.playground/Contents.swift @@ -1,3 +1,7 @@ +import UIKit + +var greeting = "Hello, playground" + //: [Previous](@previous) import Darwin diff --git a/04 函数.playground/contents.xcplayground b/04 函数.playground/contents.xcplayground new file mode 100644 index 0000000..cf026f2 --- /dev/null +++ b/04 函数.playground/contents.xcplayground @@ -0,0 +1,4 @@ + + + + \ No newline at end of file diff --git a/04 函数.playground/playground.xcworkspace/contents.xcworkspacedata b/04 函数.playground/playground.xcworkspace/contents.xcworkspacedata new file mode 100644 index 0000000..ca3329e --- /dev/null +++ b/04 函数.playground/playground.xcworkspace/contents.xcworkspacedata @@ -0,0 +1,7 @@ + + + + + diff --git a/04 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index c02292f..cea860c 100644 --- a/SwiftStudy.playground/Pages/05 枚举.xcplaygroundpage/Contents.swift +++ b/05 枚举.playground/Contents.swift @@ -1,3 +1,7 @@ +import UIKit + +var greeting = "Hello, playground" + //: [Previous](@previous) import Foundation diff --git a/05 枚举.playground/contents.xcplayground b/05 枚举.playground/contents.xcplayground new file mode 100644 index 0000000..cf026f2 --- /dev/null +++ b/05 枚举.playground/contents.xcplayground @@ -0,0 +1,4 @@ + + + + \ No newline at end of file diff --git a/05 枚举.playground/playground.xcworkspace/contents.xcworkspacedata b/05 枚举.playground/playground.xcworkspace/contents.xcworkspacedata new file mode 100644 index 0000000..ca3329e --- /dev/null +++ b/05 枚举.playground/playground.xcworkspace/contents.xcworkspacedata @@ -0,0 +1,7 @@ + + + + + diff --git a/05 枚举.playground/playground.xcworkspace/xcuserdata/jiulinxiri.xcuserdatad/UserInterfaceState.xcuserstate b/05 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zhgtKiBdvwjV(TdDW!463yY&|9OV+ok{yT?c22P)Bc(EQ`#@-mh^GyzV!RkL+P8-pGn`I{!;p` z^taP{(@&&-k$yV;Z2C9p=QBt~Ovd00S;mlzgbZzlKEsfal98H`o?*|(&nOU$9Aw&r Nf09)3JMx)P^gqB^ movq $0x10, %rax | mov rax, 3
mov rax, 0x10 | 将3赋值给rax
将0x10赋值给rax| -//| 内存赋值 | movq $0xa, 0x1ff7(%rip) | mov qword ptr [rip+0x1ff7], 0xa | 将0xa赋值给地址为rip + 0x1ff7的内存空间 | -//| 取内存地址 | leaq -0x18(%rbp), %rax | leaq -0x18(%rbp), %rax | 将rbp – 0x18这个地址值赋值给rax | -//| jmp指令 | jmp *%rdx
jmp 0x4001002
jmp *(%rax) | jmp rdx
jmp 0x4001002
jmp [rax] | call和jmp写法类似 | -//| 操作数长度 | movl %eax, %edx
movb $0x10, %al
eaw 0x10(%dx),%ax | mov edx, eax
mov al, 0x10
lea ax, [dx + 0x10] | b = byte (8-bit)
s = short (16-bit integer or 32-bit floating point)
w = word (16-bit)
l = long (32-bit integer or 64-bit floating point)
q = quad (64 bit)
t = ten bytes (80-bit floating point) | -// -// -//### lldb常见的命令 -//* thread step-over、next、n: 单步运⾏行行，把子函数当做整体⼀一步执⾏行行（源码级别） -//* thread step-in、step、s: 单步运⾏行行，遇到子函数会进⼊入子函数（源码级别） -//* thread step-inst-over、nexti、ni: 单步运⾏行行，把子函数当做整体⼀一步执⾏行行（汇编级别） -//* thread step-inst、stepi、si: 单步运⾏行行，遇到子函数会进⼊入子函数（汇编级别） -//* thread step-out、finish: 直接执⾏行行完当前函数的所有代码，返回到上一个函数（遇到断点会卡住） -// +## 汇编语言 +iOS使用的是AT&T的汇编语言 +### 常见的寄存器 +16个常用的寄存器 +* rax、rbx、rcx 、rdx、rsi、rdi、rbp、rsp +* r8、r9、r10、r11、r12、r13、r14、r15 + +寄存器的具体用途 +* rax、rdx常作为函数的返回值使用 +* rdi、rsi、rdx、rcx、r8、r9等寄存器常用于函数的参数 +* rbp、rsp用于栈操作 +* rip作为指令指针 + * 存储着CPU下一条要执行的指令的地址 + * 一旦CPU读取一条指令，rip会自动指向下一条指令 + +```java +r开头: 64bit, 8字节 +e开头: 32bit, 4字节 +ax bx cx: 16bit, 2字节 +ah al: 8bit，1字节 +bh bl +``` + +### 常见的汇编指令 + +| 项目名称 | AT&T | Intel | 说明 | +|:-----------:|:---------------------------------------------------:|:----------------------------------------------:|:-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------:| +| 寄存器名称 | %rax | rax| | +| 操作数顺序 | mvq %rax, %rdx | mv rdx, rax | 将rax的值赋给rdx| +| 常数\立即数 | movq $3, %rax
movq $0x10, %rax | mov rax, 3
mov rax, 0x10 | 将3赋值给rax
将0x10赋值给rax| +| 内存赋值 | movq $0xa, 0x1ff7(%rip) | mov qword ptr [rip+0x1ff7], 0xa | 将0xa赋值给地址为rip + 0x1ff7的内存空间 | +| 取内存地址 | leaq -0x18(%rbp), %rax | leaq -0x18(%rbp), %rax | 将rbp – 0x18这个地址值赋值给rax | +| jmp指令 | jmp *%rdx
jmp 0x4001002
jmp *(%rax) | jmp rdx
jmp 0x4001002
jmp [rax] | call和jmp写法类似 | +| 操作数长度 | movl %eax, %edx
movb $0x10, %al
eaw 0x10(%dx),%ax | mov edx, eax
mov al, 0x10
lea ax, [dx + 0x10] | b = byte (8-bit)
s = short (16-bit integer or 32-bit floating point)
w = word (16-bit)
l = long (32-bit integer or 64-bit floating point)
q = quad (64 bit)
t = ten bytes (80-bit floating point) | + + + +### lldb常见的命令 +* thread step-over、next、n: 单步运⾏行行，把子函数当做整体⼀一步执⾏行行（源码级别） +* thread step-in、step、s: 单步运⾏行行，遇到子函数会进⼊入子函数（源码级别） +* thread step-inst-over、nexti、ni: 单步运⾏行行，把子函数当做整体⼀一步执⾏行行（汇编级别） +* thread step-inst、stepi、si: 单步运⾏行行，遇到子函数会进⼊入子函数（汇编级别） +* thread step-out、finish: 直接执⾏行行完当前函数的所有代码，返回到上一个函数（遇到断点会卡住） + diff --git a/SwiftStudy.playground/Pages/Untitled Page.xcplaygroundpage/Contents.swift b/SwiftStudy.playground/Pages/Untitled Page.xcplaygroundpage/Contents.swift deleted file mode 100644 index 5275afb..0000000 --- a/SwiftStudy.playground/Pages/Untitled Page.xcplaygroundpage/Contents.swift +++ /dev/null @@ -1,7 +0,0 @@ -//: [Previous](@previous) - -import Foundation - -var greeting = "Hello, playground" - -//: [Next](@next) diff --git a/SwiftStudy.playground/contents.xcplayground b/SwiftStudy.playground/contents.xcplayground deleted file mode 100644 index fd729f0..0000000 --- a/SwiftStudy.playground/contents.xcplayground +++ /dev/null @@ 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