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| author | johannst <johannst@users.noreply.github.com> | 2020-03-13 21:00:32 +0000 |
|---|---|---|
| committer | johannst <johannst@users.noreply.github.com> | 2020-03-13 21:00:32 +0000 |
| commit | e5426455329d5b9439491d697405b8386836a154 (patch) | |
| tree | df4f21f7a28e7b11ddab90373f838e3ad1241d1b /print.html | |
| download | notes-e5426455329d5b9439491d697405b8386836a154.tar.gz notes-e5426455329d5b9439491d697405b8386836a154.zip | |
deploy: ee4ff84abec4c0ebabde925f6d0772e256fa3ddc
Diffstat (limited to 'print.html')
| -rw-r--r-- | print.html | 343 |
1 files changed, 343 insertions, 0 deletions
diff --git a/print.html b/print.html new file mode 100644 index 0000000..0f03c0b --- /dev/null +++ b/print.html @@ -0,0 +1,343 @@ +<!DOCTYPE HTML> +<html lang="en" class="sidebar-visible no-js ayu"> + <head> + <!-- Book generated using mdBook --> + <meta charset="UTF-8"> + <title>Notes</title> + + <meta name="robots" content="noindex" /> + + + <meta content="text/html; charset=utf-8" http-equiv="Content-Type"> + <meta name="description" content=""> + <meta name="viewport" content="width=device-width, initial-scale=1"> + <meta name="theme-color" content="#ffffff" /> + + <link rel="shortcut icon" href="favicon.png"> + <link rel="stylesheet" href="css/variables.css"> + <link rel="stylesheet" href="css/general.css"> + <link rel="stylesheet" href="css/chrome.css"> + <link rel="stylesheet" href="css/print.css" media="print"> + + <!-- Fonts --> + <link rel="stylesheet" href="FontAwesome/css/font-awesome.css"> + <link href="https://fonts.googleapis.com/css?family=Open+Sans:300italic,400italic,600italic,700italic,800italic,400,300,600,700,800" rel="stylesheet" type="text/css"> + <link href="https://fonts.googleapis.com/css?family=Source+Code+Pro:500" rel="stylesheet" type="text/css"> + + <!-- Highlight.js Stylesheets --> + <link rel="stylesheet" href="highlight.css"> + <link rel="stylesheet" href="tomorrow-night.css"> + <link rel="stylesheet" href="ayu-highlight.css"> + + <!-- Custom theme stylesheets --> + + + + </head> + <body> + <!-- Provide site root to javascript --> + <script type="text/javascript"> + var path_to_root = ""; + var default_theme = window.matchMedia("(prefers-color-scheme: dark)").matches ? "ayu" : "ayu"; + </script> + + <!-- Work around some values being stored in localStorage wrapped in quotes --> + <script type="text/javascript"> + try { + var theme = localStorage.getItem('mdbook-theme'); + var sidebar = localStorage.getItem('mdbook-sidebar'); + + if (theme.startsWith('"') && theme.endsWith('"')) { + localStorage.setItem('mdbook-theme', theme.slice(1, theme.length - 1)); + } + + if (sidebar.startsWith('"') && sidebar.endsWith('"')) { + localStorage.setItem('mdbook-sidebar', sidebar.slice(1, sidebar.length - 1)); + } + } catch (e) { } + </script> + + <!-- Set the theme before any content is loaded, prevents flash --> + <script type="text/javascript"> + var theme; + try { theme = localStorage.getItem('mdbook-theme'); } catch(e) { } + if (theme === null || theme === undefined) { theme = default_theme; } + var html = document.querySelector('html'); + html.classList.remove('no-js') + html.classList.remove('ayu') + html.classList.add(theme); + html.classList.add('js'); + </script> + + <!-- Hide / unhide sidebar before it is displayed --> + <script type="text/javascript"> + var html = document.querySelector('html'); + var sidebar = 'hidden'; + if (document.body.clientWidth >= 1080) { + try { sidebar = localStorage.getItem('mdbook-sidebar'); } catch(e) { } + sidebar = sidebar || 'visible'; + } + html.classList.remove('sidebar-visible'); + html.classList.add("sidebar-" + sidebar); + </script> + + <nav id="sidebar" class="sidebar" aria-label="Table of contents"> + <div id="sidebar-scrollbox" class="sidebar-scrollbox"> + <ol class="chapter"><li class="expanded "><a href="gdb.html"><strong aria-hidden="true">1.</strong> gdb</a></li></ol> + </div> + <div id="sidebar-resize-handle" class="sidebar-resize-handle"></div> + </nav> + + <div id="page-wrapper" class="page-wrapper"> + + <div class="page"> + + <div id="menu-bar" class="menu-bar"> + <div id="menu-bar-sticky-container"> + <div class="left-buttons"> + <button id="sidebar-toggle" class="icon-button" type="button" title="Toggle Table of Contents" aria-label="Toggle Table of Contents" aria-controls="sidebar"> + <i class="fa fa-bars"></i> + </button> + <button id="theme-toggle" class="icon-button" type="button" title="Change theme" aria-label="Change theme" aria-haspopup="true" aria-expanded="false" aria-controls="theme-list"> + <i class="fa fa-paint-brush"></i> + </button> + <ul id="theme-list" class="theme-popup" aria-label="Themes" role="menu"> + <li role="none"><button role="menuitem" class="theme" id="light">Light</button></li> + <li role="none"><button role="menuitem" class="theme" id="rust">Rust</button></li> + <li role="none"><button role="menuitem" class="theme" id="coal">Coal</button></li> + <li role="none"><button role="menuitem" class="theme" id="navy">Navy</button></li> + <li role="none"><button role="menuitem" class="theme" id="ayu">Ayu (default)</button></li> + </ul> + + <button id="search-toggle" class="icon-button" type="button" title="Search. (Shortkey: s)" aria-label="Toggle Searchbar" aria-expanded="false" aria-keyshortcuts="S" aria-controls="searchbar"> + <i class="fa fa-search"></i> + </button> + + </div> + + <h1 class="menu-title">Notes</h1> + + <div class="right-buttons"> + <a href="print.html" title="Print this book" aria-label="Print this book"> + <i id="print-button" class="fa fa-print"></i> + </a> + + </div> + </div> + </div> + + + <div id="search-wrapper" class="hidden"> + <form id="searchbar-outer" class="searchbar-outer"> + <input type="search" name="search" id="searchbar" name="searchbar" placeholder="Search this book ..." aria-controls="searchresults-outer" aria-describedby="searchresults-header"> + </form> + <div id="searchresults-outer" class="searchresults-outer hidden"> + <div id="searchresults-header" class="searchresults-header"></div> + <ul id="searchresults"> + </ul> + </div> + </div> + + + <!-- Apply ARIA attributes after the sidebar and the sidebar toggle button are added to the DOM --> + <script type="text/javascript"> + document.getElementById('sidebar-toggle').setAttribute('aria-expanded', sidebar === 'visible'); + document.getElementById('sidebar').setAttribute('aria-hidden', sidebar !== 'visible'); + Array.from(document.querySelectorAll('#sidebar a')).forEach(function(link) { + link.setAttribute('tabIndex', sidebar === 'visible' ? 0 : -1); + }); + </script> + + <div id="content" class="content"> + <main> + <h1><a class="header" href="#gdb1" id="gdb1">gdb(1)</a></h1> +<h1><a class="header" href="#cli" id="cli">CLI</a></h1> +<pre><code class="language-markdown"> gdb [opts] [prg [-c coredump | -p pid]] + gdb [opts] --args prg <prg-args> + opts: + -p <pid> attach to pid + -c <coredump> use <coredump> + -x <file> execute script <file> before prompt + -ex <cmd> execute command <cmd> before prompt + --tty <tty> set I/O tty for debugee +</code></pre> +<h1><a class="header" href="#interactive-usage" id="interactive-usage">Interactive usage</a></h1> +<pre><code class="language-markdown"> tty <tty> + Set <tty> as tty for debugee. + Make sure nobody reads from target tty, easiest is to spawn a shell + and run following in target tty: + > while true; do sleep 1024; done + + set follow-fork-mode <child | parent> + Specify which process to follow when debuggee makes a fork(2) + syscall. + + sharedlibrary [<regex>] + Load symbols of shared libs loaded by debugee. Optionally use <regex> + to filter libs for symbol loading. + + break [-qualified] <sym> thread <tnum> + Set a breakpoint only for a specific thread. + -qualified: Tred <sym> as fully qualified symbol (quiet handy to set + breakpoints on C symbols in C++ contexts) + + rbreak <regex> + Set breakpoints matching <regex>, where matching internally is done + on: .*<regex>.* + + command [<bp_list>] + Define commands to run after breakpoint hit. If <bp_list> is not + specified attach command to last created breakpoint. Command block + terminated with 'end' token. + + <bp_list>: Space separates list, eg 'command 2 5-8' to run command + for breakpoints: 2,5,6,7,8. + + info functions [<regex>] + List functions matching <regex>. List all functions if no <regex> + provided. + + info variables [<regex>] + List variables matching <regex>. List all variables if no <regex> + provided. + + info handle [<signal>] + Print how to handle <signal>. If no <signal> specified print for all + signals. + + handle <signal> <action> + Configure how gdb handles <signal> sent to debugee. + <action>: + stop/nostop Catch signal in gdb and break. + print/noprint Print message when gdb catches signal. + pass/nopass Pass signal down to debugee. + + catch signal <signal> + Create a catchpoint for <signal>. +</code></pre> +<h1><a class="header" href="#user-commands-macros" id="user-commands-macros">User commands (macros)</a></h1> +<pre><code class="language-markdown"> define <cmd> + # cmds + end + + document <cmd> + # docu + end + + help user-defined List user defined commands. + help <cmd> List documentation for command <cmd>. +</code></pre> +<h1><a class="header" href="#hooks" id="hooks">Hooks</a></h1> +<p>Gdb allows to create two types of command <code>hooks</code> which will be either executed +before or after a certain command.</p> +<pre><code class="language-markdown"> define hook-<cmd> Run commands defined in hook before + # cmds executing <cmd>. + end + + define hookpost-<cmd> Run commands defined in hookpost after + # cmds executing <cmd>. + end +</code></pre> +<h1><a class="header" href="#flows" id="flows">Flows</a></h1> +<h2><a class="header" href="#catch-sigsegv-and-execute-commands-on-occurrence" id="catch-sigsegv-and-execute-commands-on-occurrence">Catch SIGSEGV and execute commands on occurrence</a></h2> +<pre><code class="language-markdown"> catch signal SIGSEGV + command + bt + c + end +</code></pre> +<h2><a class="header" href="#run-backtrace-on-thread-1-batch-mode" id="run-backtrace-on-thread-1-batch-mode">Run <code>backtrace</code> on thread 1 (batch mode)</a></h2> +<pre><code class="language-markdown"> gdb --batch -ex 'thread 1' -ex 'bt' -p <pid> +</code></pre> +<h2><a class="header" href="#script-gdb-for-automating-debugging-sessions" id="script-gdb-for-automating-debugging-sessions">Script gdb for automating debugging sessions</a></h2> +<pre><code class="language-markdown"># run.gdb + set pagination off + + break mmap + command + info reg rdi rsi rdx + bt + c + end + + #initial drop + c +</code></pre> +<p>This script can be used as:</p> +<pre><code class="language-markdown"> gdb -p <pid> -x ./run.gdb --batch &> run.log +</code></pre> +<h2><a class="header" href="#workaround-command--finish-bug" id="workaround-command--finish-bug">Workaround <code>command + finish</code> bug</a></h2> +<p>When using <code>finish</code> action inside a <code>command</code> block, actions after <code>finish</code> are +not executed anymore. To workaround that bug one can create a wrapper function +which calls <code>finish</code>.</p> +<pre><code class="language-markdown"> define handler + bt + finish + info reg rax + end + + command + handler + end +</code></pre> + + </main> + + <nav class="nav-wrapper" aria-label="Page navigation"> + <!-- Mobile navigation buttons --> + + + + + <div style="clear: both"></div> + </nav> + </div> + </div> + + <nav class="nav-wide-wrapper" aria-label="Page navigation"> + + + + </nav> + + </div> + + + + + + + + + <script type="text/javascript"> + window.playpen_copyable = true; + </script> + + + + + + <script src="elasticlunr.min.js" type="text/javascript" charset="utf-8"></script> + <script src="mark.min.js" type="text/javascript" charset="utf-8"></script> + <script src="searcher.js" type="text/javascript" charset="utf-8"></script> + + + <script src="clipboard.min.js" type="text/javascript" charset="utf-8"></script> + <script src="highlight.js" type="text/javascript" charset="utf-8"></script> + <script src="book.js" type="text/javascript" charset="utf-8"></script> + + <!-- Custom JS scripts --> + + + + + <script type="text/javascript"> + window.addEventListener('load', function() { + window.setTimeout(window.print, 100); + }); + </script> + + + + </body> +</html> |