A fundamental introduction to x86 assembly programming
0. Introduction The x86 instruction set architecture is at the heart of CPUs that power our home computers and remote servers for over two decades. Being able to read and write code in low-level assembly language is a powerful skill to have. It enables you to write faster code, use machine features unavailable in C, and reverse-engineer compiled code. But starting out can be a daunting task. The o
x86 Assembly - Wikibooks, open books for an open world
This book has a collection for ordering a printed copy of this book for a fee. (edit) (help) This book covers assembly language programming for the x86 family of microprocessors. The objective is to teach how to program in x86 assembly, as well as the history and basic architecture of x86 processor family. When referring to x86 we address the complete range of x86-based processors (since the origi
KMC Staff Blog:gas ã®ã‚¤ãƒ³ãƒ†ãƒ«æ§‹æ–‡
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Mac OS X 64 bit Assembly System Calls
After reading about shellcode in Chapter 5 of Hacking: The Art of Exploitation, I wanted to go back through some of the examples and try them out. The first example was a simple Hello World program in Intel assembly. I followed along in the book and had no problems reproducing results on a 32 bit Linux VM using nasm with elf file format and ld for linking. Then I decided I wanted to try something
Mac OS X 64bitã§ã‚·ã‚¹ãƒ†ãƒ コール - 七誌ã®é–‹ç™ºæ—¥è¨˜
64bitã®Mac OS Xã§ã‚·ã‚¹ãƒ†ãƒ コールを呼ã¼ã†ã¨ã—ã¦ãƒãƒžã‚Šã¾ã—ãŸã€‚çµè«–ã‹ã‚‰è¨€ã†ã¨ã€ã‚·ã‚¹ãƒ†ãƒ コール番å·ã«0x2000000を足ã™å¿…è¦ãŒã‚ã‚Šã¾ã™ã€‚詳細ã¯ä»¥ä¸‹ã‚’å‚ç…§ã—ã¾ã—ãŸã€‚ http://thexploit.com/secdev/mac-os-x-64-bit-assembly-system-calls/ exitシステムコール（1番）を呼ã³å‡ºã™ä¾‹ã¯ä»¥ä¸‹ã®é€šã‚Šã§ã™ã€‚asãŒIntel記法をå—ã‘付ã‘ã‚‹ã“ã¨ãŒåˆ†ã‹ã£ãŸã®ã§ã€Intel記法を使用ã—ã¾ã—ãŸã€‚ $ gcc -nostdlib exit.s ld: warning: symbol dyld_stub_binder not found, normally in libSystem.dylib $ ./a.out $ echo $? 123
アセンブラã§éŠã¶æ™‚ã«ä¾¿åˆ©ãªgdbè¨å®š - memologue
アセンブラã§éŠã¶æ™‚ã«ä¾¿åˆ©ãª ~/.gdbinit を紹介ã—ã¾ã™ã€‚ã¾ãš ~/.gdbinit を次ã®ã‚ˆã†ã«è¨˜è¿°ã—ã¦ãã ã•ã„。 # # ~/.gdbinit # # .so ã‚’ shlib コマンドã§æ‰‹å‹•ã§èªã¿è¾¼ã‚€ # set auto-solib-add 0 # スレッド生æˆæ™‚ã®SIG32ã§ãƒ–レークã—ãªã„ handle SIG32 nostop # ニモニック構文ã®é¸æŠž # set disassembly-flavor intel set disassembly-flavor att # フラグレジスタã®å¯èªåŒ–関数 define pf printf "eflags: %s%s%s%s%s%s%s%s%s (= 0x%08u)\n",\ $eflags & 2048 ? "O":"-",\ $eflags & 1024 ? "D":"-",\ $eflags & 512 ? "I":"-",\
Assembly Programming on x86-64 Linux
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アセンブラ LASM ã®æ¦‚è¦
Light Macro Assembler Version 2.35F [広告] フリーソフトã«åºƒå‘Šã‚’載ã›ã‚‹ 高級言語ãŒã„ã‹ã«é€²æ©ã—よã†ã¨ã‚‚ã€ã‚¢ã‚»ãƒ³ãƒ–ラãŒã‚³ãƒ³ãƒ”ュータã®åŸºæœ¬ã§ã‚ã‚‹ã“ã¨ã«å¤‰ã‚ã‚Šã¯ã‚ã‚Šã¾ã›ã‚“。Light Macro Assembler ã¯ã‚³ãƒ³ãƒ‘クトãªã‚¢ã‚»ãƒ³ãƒ–ラ開発システムã§ã™ã€‚ 8086/8087 ã‹ã‚‰ Pentium ã¾ã§ã«å¯¾å¿œã—㟠MS-DOS 汎用ã®ãƒžã‚¯ãƒã‚¢ã‚»ãƒ³ãƒ–ラã§ã™ã€‚ Windows ã®ã‚³ãƒžãƒ³ãƒ‰ プãƒãƒ³ãƒ—ト内ã§ã‚‚使用ã§ãã¾ã™ã€‚ Microsoft MASM 6.0 ã¨é«˜ã„互æ›æ€§ãŒã‚ã‚Šã¾ã™ã€‚ MS-DOS 標準㮠OBJ ファイルを作æˆã—ã¾ã™ã€‚高級言語ã¨ã®ãƒªãƒ³ã‚¯ã‚‚å¯èƒ½ã§ã™ã€‚ æ§‹é€ åŒ–ãƒ–ãƒãƒƒã‚¯ã‚’サãƒãƒ¼ãƒˆã—ã¦ã„ã¾ã™ã€‚(.IF ãªã©) マルãƒãƒ‘ス方å¼ã«ã‚ˆã£ã¦ã‚³ãƒ¼ãƒ‰ã‚’最é©åŒ–ã§ãã¾ã™ã€‚ 事実上ソースファイルã®å¤§ãã•ã«åˆ¶é™ã¯ãªãã€é«˜é€Ÿã«ã‚¢ã‚»ãƒ³ãƒ–ルã—ã¾ã™ã€‚ リンカã€ãƒ‡ãƒãƒƒã‚¬ã€ãƒ©ã‚¤ãƒ–ラリ
MASM32 SDK
The Microsoft Assembler (commonly known as MASM) is an industrial software development tool that has been maintained and updated for over 30 years by a major operating system vendor. It has never been softened or compromised into a consumer friendly tool and is designed to be used by professional programmers for operating system level code and high performance object modules, executable files and
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http://cocoafactory.com/blog/2012/11/23/x86-64-assembly-language-tutorial-part-1/
nasm in Mac OS X
http://japan.internet.com/developer/20051012/25.html
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