Linux syscall tables
Linux kernel syscall tables Loading database... Architecture: Kernel version: Powered by Systrack v [JSON table] [kernel config] [analysis log] [website source] Signature Number Name Symbol Definition location Kconfig Copyright © 2023-2024 Marco Bonelli — Licensed under the GNU General Public License v3.0
システムコールを速ãæ¼ã‚Œãªãフックã™ã‚‹æ–¹æ³• | IIJ Engineers Blog
ptraceã€Syscall User Dispatch：カーãƒãƒ«ãŒæä¾›ã—ã¦ã„ã‚‹ ptrace ã‚„ Syscall User Dispatch ã®ã‚ˆã†ãªæ©Ÿèƒ½ã¯ã€ãƒ¦ãƒ¼ã‚¶ç©ºé–“ã§ã‚·ã‚¹ãƒ†ãƒ コールã®ãƒ•ãƒƒã‚¯ã‚’実装ã™ã‚‹ãŸã‚ã«åˆ©ç”¨ã§ãã¾ã™ã€‚ã§ã™ãŒã€ã“れらを利用ã™ã‚‹ã¨ã€å…ƒã®ãƒ¦ãƒ¼ã‚¶ç©ºé–“プãƒã‚°ãƒ©ãƒ 内部ã§ã®ã‚·ã‚¹ãƒ†ãƒ コール呼ã³å‡ºã—ã®ã‚³ã‚¹ãƒˆãŒå¤§ãããªã‚Šã€çµæžœã¨ã—ã¦ã€æ€§èƒ½ãŒå¤§ãã劣化ã—ã¦ã—ã¾ã„ã¾ã™ã€‚（è¦ä»¶ï¼‘を満ãŸã›ãªã„） eBPF ：eBPF ã®ã‚ˆã†ãªã‚«ãƒ¼ãƒãƒ«å†…ã®é–¢æ•°ã¸ãƒ•ãƒƒã‚¯ã‚’é©ç”¨ã§ãる仕組ã¿ã‚‚ã‚ã‚Šã¾ã™ãŒã€eBPF 㯠XDP ã®ã‚ˆã†ãªå ´åˆã‚’除ãã¨ã€åŸºæœ¬çš„ã«ã‚«ãƒ¼ãƒãƒ«ã®æŒ™å‹•ã‚’変更ã™ã‚‹ãŸã‚ã«ã¯åˆ©ç”¨ã§ããªã„ãŸã‚ã€ã‚«ãƒ¼ãƒãƒ«æ©Ÿèƒ½ã‚’ユーザ空間ã§ã‚¨ãƒŸãƒ¥ãƒ¬ãƒ¼ãƒˆã™ã‚‹ã€ã¨ã„ã£ãŸç”¨é€”ã«ã¯é©ã—ã¦ã„ã¾ã›ã‚“。(è¦ä»¶ï¼•ã‚’満ãŸã›ãªã„) ライブラリ関数ã®ç½®ãæ›ãˆï¼šæ¨™æº–ライブラリ（libc ç‰ï¼‰ã¯ã€æ²¢å±±ã®ã‚·ã‚¹ãƒ†ãƒ コールã®ãƒ©ãƒƒãƒ‘ーライブラリ関数を実装ã—ã¦ãŠ
GitHub - janestreet/magic-trace: magic-trace collects and displays high-resolution traces of what a process is doing
magic-trace collects and displays high-resolution traces of what a process is doing. People have used it to: figure out why an application running in production handles some requests slowly while simultaneously handling a sea of uninteresting requests, look at what their code is actually doing instead of what they think it's doing, get a history of what their application was doing before it crashe
GitHub - WerWolv/ImHex: 🔠A Hex Editor for Reverse Engineers, Programmers and people who value their retinas when working at 3 AM.
Featureful hex view Byte patching Patch management Infinite Undo/Redo "Copy bytes as..." Bytes Hex string C, C++, C#, Rust, Python, Java & JavaScript array ASCII-Art hex view HTML self-contained div Simple string and hex search Goto from start, end and current cursor position Colorful highlighting Configurable foreground highlighting rules Background highlighting using patterns, find results and b
(M1/Apple Silicon)MacãªäººãŸã¡ã«è´ˆã‚‹ç’°å¢ƒæ§‹ç¯‰Tips集(Dotfiles付ã) - Qiita
🙇ðŸ»â€â™‚ï¸ã¯ã˜ã‚ã«ðŸ™‡ðŸ»â€â™‚ï¸ ã“ã®è¨˜äº‹ã¯å¼Šç¤¾ã®2021年度Advent Calendarã«å‘ã‘ã¦åŸ·ç†ã—ãŸã‚‚ã®ã§ã™ã€‚ã©ã†ã„ã†è¨˜äº‹ã«ã™ã‚‹ã‹å°‘ã—æ‚©ã‚“ã ã®ã§ã™ãŒã€ã‚„ã¯ã‚ŠAdvent Calendarã§ã¯å®Ÿç”¨çš„ãªè¨˜äº‹ã®æ–¹ãŒãƒ—レゼント感ãŒã‚ã£ã¦ã„ã„ã‹ãªãƒ¼ã€ã¨æ€ã„ã“ã®è¨˜äº‹ã‚’書ãã“ã¨ã«ã—ã¾ã—ãŸã€‚ 💪モãƒãƒ™ãƒ¼ã‚·ãƒ§ãƒ³ðŸ’ª Macを利用ã—ã¦ã„るエンジニアã®æ–¹ã¯ã‹ãªã‚Šå¤šã„ã¨æ€ã„ã¾ã™ãŒã€ç§ã®è¦³æ¸¬ç¯„囲ã§ã¯ã€ç’°å¢ƒã‚’カスタマイズã—ã¾ãã‚‹å‹¢ã¨ã»ã¼ãƒ‡ãƒ•ã‚©ãƒ«ãƒˆã®ã¾ã¾ä½¿ã£ã¦ã‚‹å‹¢ã«äºŒåˆ†ã•ã‚Œã¦ã„るよã†ã«æ€ã„ã¾ã™ã€‚「ã“ã†ã„ã†è¨å®šå…¥ã‚Œã¨ãã¨ä¾¿åˆ©ã£ã™ã‚ˆã€ã¿ãŸã„ãªã“ã¨ã‚’ã„ã‚ã‚“ãªäººã«ãŠä¼ãˆã—ãŸã“ã¨ãŒã‚ã£ãŸã®ã§ã€ä»Šå¾Œã¯ã“ã®è¨˜äº‹ã¿ã‚‹ã¨ã„ã„よã€ã£ã¦è¨€ãˆã‚Œã°ã„ã„ã‹ã‚‚ãªãƒ¼ã€ã¨æ€ã£ã¦ã„ã‚‹æ„Ÿã˜ã§ã™ã€‚ã£ã¦è¨€ã£ã¦ã‚‚大ã—ãŸã“ã¨ã‚„ã£ã¦ãªã„ã®ã§å‡„腕エンジニアã®æ–¹ã€…ã¯ã€Œãªã‚“ã よã€ã“ã‚Œã€çŸ¥ã£ã¦ã‚‹ã“ã¨ã°ã£ã‹ãªã‚“ã ã‘ã©wã€ã£ã¦ãªã‚‹ã‹ã‚‚ã—ã‚Œãªã„ã®ã§ãƒ–ラウザãƒãƒƒã‚¯ã§ãŠ
x64dbg
Open-source Intuitive and familiar, yet new user interface C-like expression parser Full-featured debugging of DLL and EXE files (TitanEngine) IDA-like sidebar with jump arrows IDA-like instruction token highlighter (highlight registers, etc.) Memory map Symbol view Thread view Source code view Graph view Content-sensitive register view Fully customizable color scheme Dynamically recognize modules
iMops-forth @Wiki
é€æ¬¡æ‹¡å¼µåž‹ã‚¤ãƒ³ã‚¿ãƒ©ã‚¯ãƒ†ã‚£ãƒ–開発環境を作æˆã—ã¾ã—ãŸã€‚iMops (アイ・モップス)ã¨ã„ã†åå‰ã§ã™ã€‚無料ソフトウェアã§ã™ã€‚ ã“ã“ã‹ã‚‰ãƒ€ã‚¦ãƒ³ãƒãƒ¼ãƒ‰ã§ãã¾ã™ã€‚ç¾åœ¨ã®ãƒãƒ¼ã‚¸ãƒ§ãƒ³ã¯2.23ã§ã™(2022/2/5)。 Macintoshコンピュータ（MacOS[X]）専用ã§ã™ãŒã€ç›¸å½“程度最é©åŒ–ã•ã‚ŒãŸx86-64マシンコードを生æˆã—ã¾ã™ã€‚インタラクティブã«ä¸€èªžä¸€èªžï¼ˆ=å„関数毎ã«ï¼‰ã‚³ãƒ³ãƒ‘イル-解釈実行ã§ãã¾ã™ã€‚JITコンパイラã¨ã‹ã„ã†ã‚‚ã®ã«ãªã‚‹ã®ã§ã—ょã†ã‹ã€‚Cocoaãªã©ä¸€èˆ¬ã®å‹•çš„フレームワークã«ãƒªãƒ³ã‚¯ã§ãã¾ã™ã€‚å˜ç‹¬ã§èµ·å‹•å¯èƒ½ãªã‚¢ãƒ—リケーションを作るã“ã¨ã‚‚ã§ãã¾ã™ã€‚64ビットã®ã¿ã§ã™ãŒå‹•çš„ライブラリも生æˆã§ãã¾ã™ã€‚最新ã®macOS上ã§ã‚‚稼åƒã™ã‚‹ã‚ˆã†ã§ã™ï¼ˆç¢ºèªæ¸ˆï¼‰ã€‚（ãªãŠã€Apple社ãŒã€Macã®å…¨CPUを二年ã§ARM仕様ã«å¤‰æ›´ã™ã‚‹ã¨å®£è¨€ã—ãŸã“ã¨ã«å¯¾å¿œã—ã¦ã€ARM64ビットãƒã‚¤ãƒ†ã‚£ãƒ–ã®Mopsã®é–‹ç™ºè¨ˆç”»ãŒé€²è¡Œ
GitHub - nanochess/cubicDoom: A ray-casting game in 512 bytes of x86 machine code
_____ _ _ ______ _____ ________ ___ / __ \ | | (_) | _ \ _ || _ | \/ | | / \/_ _| |__ _ ___| | | | | | || | | | . . | | | | | | | '_ \| |/ __| | | | | | || | | | |\/| | | \__/\ |_| | |_) | | (__| |/ /\ \_/ /\ \_/ / | | | \____/\__,_|_.__/|_|\___|___/ \___/ \___/\_| |_/ CubicDoom, a ray-casting game that fits in a boot sector (510 bytes) by Oscar Toledo G. Nov/25/2019 http://nanochess.org https://g
x86よãã§ãã¦ã‚‹ç‚¹ - w_o’s diary
アーã‚テクãƒãƒ£ã¨å®Ÿè£…æ··ã–ã£ã¦ã‚‹ã‘㩠命令dispãŒ32bit届ã immã‚‚32bit入るã“ã¨ãŒå¤šã„ メモリãŒé †åºå®ˆã‚‹(何回も書ããŒã€ãƒ¡ãƒ¢ãƒªé †åºãŒç·©ã„ã“ã¨ã«ã‚ˆã£ã¦å¾—られãŸCPU時間より失ãªã£ãŸäººé–“時間ã®ã»ã†ãŒçµ¶å¯¾å¤šã„ã‹ã‚‰) ファームウェアãŒBIOSã¨UEFIã®äºŒç¨®é¡žã—ã‹ãªã„ (ボードã”ã¨ã«ã‚«ãƒ¼ãƒãƒ«ã«ãƒ‡ã‚£ãƒ¬ã‚¯ãƒˆãƒªä½œã‚‹ã®ã‚„ã‚ã‚ARM) 周辺デãƒã‚¤ã‚¹ãŒPCIã«çµ±ä¸€ã•ã‚Œã¦ã¦ã‚ャッシュã®å•é¡ŒãŒèµ·ã“ã‚Šã¥ã‚‰ã„(ã‚‚ã†dma_alloc_coherentã®æŒ™å‹•èª¿ã¹ã‚‹ã®é£½ããŸ) ã‚ャッシュãŒã‚½ãƒ•ãƒˆçš„ã«è¦‹ã‚Œã°ä¸€éšŽå±¤ (L2ã®æŒ™å‹•ãŒå®šç¾©ã•ã‚Œã¦ãªã„ARMã¨ã‹ã„ã†ç„¡åCPU) 除算ã¨FPUãŒä»˜ã„ã¦ã‚‹ ABIãŒWin除ã‘ã°32bitã¨64bitã¨x32ã®3種類ã—ã‹ãªã„。 PCIe ãŒã‚ャッシュスヌープ付ã‘ã¦ãƒ•ãƒ«ã‚¹ãƒ”ード近ã出る lock cmpxchg ãŒé…ããªã„ *fence ãŒé…ããªã„ ã“ã†ã„ã†å•é¡Œã§åˆ¥ã®ã‚¢ãƒ¼ã‚ãŒx8
Intel製CPUã«ã€Œæ¶ˆè²»é›»åŠ›ã®ç›£è¦–データã€ã‹ã‚‰æš—å·åŒ–ã‚ーを解èªã•ã‚Œã‚‹è„†å¼±æ€§ãŒåˆ¤æ˜Ž
Intel製CPUã«ã‚³ã‚¢ã®æ¶ˆè²»é›»åŠ›ã‹ã‚‰æš—å·åŒ–ã•ã‚ŒãŸãƒ‡ãƒ¼ã‚¿ã®è§£èªãªã©ã‚’è¡Œã†ã‚µã‚¤ãƒ‰ãƒãƒ£ãƒãƒ«æ”»æ’ƒã‚’許ã™è„†å¼±æ€§ã€ŒPLATYPUSã€ãŒåˆ¤æ˜Žã—ã¾ã—ãŸã€‚一般的ãªã‚µã‚¤ãƒ‰ãƒãƒ£ãƒãƒ«æ”»æ’ƒã®ã‚ˆã†ã«ã‚ªã‚·ãƒã‚¹ã‚³ãƒ¼ãƒ—を使ã£ãŸæ¶ˆè²»é›»åŠ›ã®ç‰©ç†çš„ãªæ¸¬å®šã¯å¿…è¦ãªãã€OSã‹ã‚‰åˆ©ç”¨ã§ãる「消費電力モニター機能ã€ã®ã¿ã§æ”»æ’ƒãŒå¯èƒ½ã ã¨å ±å‘Šã•ã‚Œã¦ã„ã¾ã™ã€‚ PLATYPUS: With Great Power comes Great Leakage https://platypusattack.com/ INTEL-SA-00389 https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00389.html Intel SGX defeated yet again—this time thanks to on-chip power meter |
プãƒã‚°ãƒ©ãƒ ã®ãƒ•ã‚¡ã‚¤ãƒ«èªã¿æ›¸ãã§ã€Œmmapã€ã‚’使ã†ã¨é€Ÿåº¦ãŒå‘上ã™ã‚‹ç†ç”±ã¨ã¯ï¼Ÿ
ソフトウェア開発ã«ãŠã„ã¦ã€Œãƒ•ã‚¡ã‚¤ãƒ«ã®èªã¿æ›¸ãã€ã¯ä½¿ç”¨é »åº¦ã®é«˜ã„æ“作ã§ã‚ã‚Šã€é€Ÿåº¦ã®å‘上ã¯ã‚½ãƒ•ãƒˆã‚¦ã‚§ã‚¢å…¨ä½“ã®ãƒ‘フォーマンスã«å¤§ãã影響ã—ã¾ã™ã€‚ãã‚“ãªãƒ•ã‚¡ã‚¤ãƒ«ã®èªã¿æ›¸ãæ“作を行ã†éš›ã«ã€Œmmapを使ã£ãŸæ–¹ãŒé€šå¸¸ã®ã‚·ã‚¹ãƒ†ãƒ コールよりも高速ã«ãƒ•ã‚¡ã‚¤ãƒ«ã‚’æ“作ã§ãã‚‹ç†ç”±ã€ã«ã¤ã„ã¦ã€ãƒ–リティッシュコãƒãƒ³ãƒ“ア大å¦ã®å‡†æ•™æŽˆã§ã‚ã‚‹Alexandra Fedorovaæ°ãŒèª¬æ˜Žã—ã¦ã„ã¾ã™ã€‚ Why mmap is faster than system calls | by Alexandra (Sasha) Fedorova | Medium https://sasha-f.medium.com/why-mmap-is-faster-than-system-calls-24718e75ab37 OS上ã§ãƒ¦ãƒ¼ã‚¶ãƒ¼ãŒãƒ—ãƒã‚°ãƒ©ãƒ を実行ã™ã‚‹éš›ã€ãƒ—ãƒã‚°ãƒ©ãƒ ã¯ã€Œãƒ¦ãƒ¼ã‚¶ãƒ¼ç©ºé–“ã€ã¨ã€Œã‚«ãƒ¼ãƒãƒ«ç©ºé–“ã€ã¨å‘¼ã°ã‚Œã‚‹2種類ã®é ˜åŸŸã‚’利用ã—ã¾ã™ã€‚
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GitHub - hikalium/wasabi: Toy web browser + OS in Rust = wasabi
Intel CPUã¨NVIDIA GPUã‚’çµ±åˆã—ãŸå¤¢ã®x86 SoC実ç¾ã¸ã€‚NVIDIAãŒIntelã«7,400億円投資
GitHub - littlekernel/lk: LK embedded kernel
GitHub - intel/intel-lpmd
GitHub - ggml-org/ggml: Tensor library for machine learning
第4世代インテルXeonスケーラブル・プãƒã‚»ãƒƒã‚µãƒ¼ã®ã‚モã¨ãªã‚‹ã€Œã‚¢ã‚¯ã‚»ãƒ©ãƒ¬ãƒ¼ã‚¿ã€ã¨ã¯ä½•ãªã®ã‹ï¼Ÿ ～5Gもクラウドサービスもã€ç¤¾ä¼šåŸºç›¤ã‚’広範ã«æ”¯ãˆã‚‹ã‚¤ãƒ³ãƒ†ãƒ«CPU[Sponsored]![第4世代インテルXeonスケーラブル・プãƒã‚»ãƒƒã‚µãƒ¼ã®ã‚モã¨ãªã‚‹ã€Œã‚¢ã‚¯ã‚»ãƒ©ãƒ¬ãƒ¼ã‚¿ã€ã¨ã¯ä½•ãªã®ã‹ï¼Ÿ ～5Gもクラウドサービスもã€ç¤¾ä¼šåŸºç›¤ã‚’広範ã«æ”¯ãˆã‚‹ã‚¤ãƒ³ãƒ†ãƒ«CPU[Sponsored]](https://cdn-ak-scissors.b.st-hatena.com/image/square/604db5923ee89a214192966095d19a757796b74e/height=288;version=1;width=512/https%3A%2F%2Fpc.watch.impress.co.jp%2Fimg%2Fpcw%2Flist%2F1485%2F918%2F001.jpg)
How to compile 32-bit program on 64-bit gcc in C and C++ - GeeksforGeeks
ChromiumOS Docs - constants/syscalls.md
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