📄 build.htm
字号:
<!doctype html public "-//W3C//DTD HTML 3.2//EN"><html><head><title>Linux/tools/build.c</title><meta http-equiv=Content-Type content="text/html; charset=gb2312"><base href="http://oldlinux.org/lxr/http_cn/"></head><body bgcolor=white><div align=center> [<b><i>源代码浏览</i></b>] [<a href="diff/tools/build.c">区别标定</a>] [<a href="ident">标识符搜索</a>] [<a href="search">文本搜索</a>] [<a href="find">文件搜索</a>]</div><h1 align=center> <a href="http:/"> OldLinux</a> <a href="http:blurb.html"> 交叉引用</a><br> <a href="source/">Linux</a>/<a href="source/tools/">tools</a>/<a href="source/tools/build.c">build.c</a></h1><div align=center> <b>版本:</b> [<a href="source/tools/build.c?v=1.0">1.0</a>] [<a href="source/tools/build.c?v=0.99.11">0.99.11</a>] [<a href="source/tools/build.c?v=0.99">0.99</a>] [<a href="source/tools/build.c?v=0.98">0.98</a>] [<a href="source/tools/build.c?v=0.97">0.97</a>] [<a href="source/tools/build.c?v=0.96a">0.96a</a>] [<a href="source/tools/build.c?v=0.95">0.95</a>] [<a href="source/tools/build.c?v=0.12">0.12</a>] [<b><i>0.11</i></b>] [<a href="source/tools/build.c?v=0.01">0.01</a>] <br> <b>体系结构:</b> [<b><i>i386</i></b>] <br></div><hr><pre> <a name=L1 href="source/tools/build.c#L1">1</a> <b><i>/*</i></b> <a name=L2 href="source/tools/build.c#L2">2</a> <b><i> * linux/tools/build.c</i></b> <a name=L3 href="source/tools/build.c#L3">3</a> <b><i> *</i></b> <a name=L4 href="source/tools/build.c#L4">4</a> <b><i> * (C) 1991 Linus Torvalds</i></b> <a name=L5 href="source/tools/build.c#L5">5</a> <b><i> */</i></b> <a name=L6 href="source/tools/build.c#L6">6</a> <a name=L7 href="source/tools/build.c#L7">7</a> <b><i>/*</i></b> <a name=L8 href="source/tools/build.c#L8">8</a> <b><i> * This file builds a disk-image from three different files:</i></b> <a name=L9 href="source/tools/build.c#L9">9</a> <b><i> *</i></b> <a name=L10 href="source/tools/build.c#L10">10</a> <b><i> * - bootsect: max 510 bytes of 8086 machine code, loads the rest</i></b> <a name=L11 href="source/tools/build.c#L11">11</a> <b><i> * - setup: max 4 sectors of 8086 machine code, sets up system parm</i></b> <a name=L12 href="source/tools/build.c#L12">12</a> <b><i> * - system: 80386 code for actual system</i></b> <a name=L13 href="source/tools/build.c#L13">13</a> <b><i> *</i></b> <a name=L14 href="source/tools/build.c#L14">14</a> <b><i> * It does some checking that all files are of the correct type, and</i></b> <a name=L15 href="source/tools/build.c#L15">15</a> <b><i> * just writes the result to stdout, removing headers and padding to</i></b> <a name=L16 href="source/tools/build.c#L16">16</a> <b><i> * the right amount. It also writes some system data to stderr.</i></b> <a name=L17 href="source/tools/build.c#L17">17</a> <b><i> */</i></b> <a name=L18 href="source/tools/build.c#L18">18</a> <a name=L19 href="source/tools/build.c#L19">19</a> <b><i>/*</i></b> <a name=L20 href="source/tools/build.c#L20">20</a> <b><i> * Changes by tytso to allow root device specification</i></b> <a name=L21 href="source/tools/build.c#L21">21</a> <b><i> */</i></b> <a name=L22 href="source/tools/build.c#L22">22</a> <a name=L23 href="source/tools/build.c#L23">23</a> #include <stdio.h> /* fprintf */ <a name=L24 href="source/tools/build.c#L24">24</a> #include <string.h> <a name=L25 href="source/tools/build.c#L25">25</a> #include <stdlib.h> /* contains exit */ <a name=L26 href="source/tools/build.c#L26">26</a> #include <sys/types.h> /* unistd.h needs this */ <a name=L27 href="source/tools/build.c#L27">27</a> #include <sys/stat.h> <a name=L28 href="source/tools/build.c#L28">28</a> #include <linux/fs.h> <a name=L29 href="source/tools/build.c#L29">29</a> #include <unistd.h> /* contains read/write */ <a name=L30 href="source/tools/build.c#L30">30</a> #include <fcntl.h> <a name=L31 href="source/tools/build.c#L31">31</a> <a name=L32 href="source/tools/build.c#L32">32</a> #define <a href="ident?i=MINIX_HEADER">MINIX_HEADER</a> 32 <a name=L33 href="source/tools/build.c#L33">33</a> #define <a href="ident?i=GCC_HEADER">GCC_HEADER</a> 1024 <a name=L34 href="source/tools/build.c#L34">34</a> <a name=L35 href="source/tools/build.c#L35">35</a> #define <a href="ident?i=SYS_SIZE">SYS_SIZE</a> 0x2000 <a name=L36 href="source/tools/build.c#L36">36</a> <a name=L37 href="source/tools/build.c#L37">37</a> #define <a href="ident?i=DEFAULT_MAJOR_ROOT">DEFAULT_MAJOR_ROOT</a> 3 <a name=L38 href="source/tools/build.c#L38">38</a> #define <a href="ident?i=DEFAULT_MINOR_ROOT">DEFAULT_MINOR_ROOT</a> 6 <a name=L39 href="source/tools/build.c#L39">39</a> <a name=L40 href="source/tools/build.c#L40">40</a> <b><i>/* max nr of sectors of setup: don't change unless you also change</i></b> <a name=L41 href="source/tools/build.c#L41">41</a> <b><i> * bootsect etc */</i></b> <a name=L42 href="source/tools/build.c#L42">42</a> #define <a href="ident?i=SETUP_SECTS">SETUP_SECTS</a> 4 <a name=L43 href="source/tools/build.c#L43">43</a> <a name=L44 href="source/tools/build.c#L44">44</a> #define <a href="ident?i=STRINGIFY">STRINGIFY</a>(<a href="ident?i=x">x</a>) #x <a name=L45 href="source/tools/build.c#L45">45</a> <a name=L46 href="source/tools/build.c#L46">46</a> void <a href="ident?i=die">die</a>(char * <a href="ident?i=str">str</a>) <a name=L47 href="source/tools/build.c#L47">47</a> { <a name=L48 href="source/tools/build.c#L48">48</a> fprintf(stderr,<i>"%s\n"</i>,<a href="ident?i=str">str</a>); <a name=L49 href="source/tools/build.c#L49">49</a> <a href="ident?i=exit">exit</a>(1); <a name=L50 href="source/tools/build.c#L50">50</a> } <a name=L51 href="source/tools/build.c#L51">51</a> <a name=L52 href="source/tools/build.c#L52">52</a> void <a href="ident?i=usage">usage</a>(void) <a name=L53 href="source/tools/build.c#L53">53</a> { <a name=L54 href="source/tools/build.c#L54">54</a> <a href="ident?i=die">die</a>(<i>"Usage: build bootsect setup system [rootdev] [> image]"</i>); <a name=L55 href="source/tools/build.c#L55">55</a> } <a name=L56 href="source/tools/build.c#L56">56</a> <a name=L57 href="source/tools/build.c#L57">57</a> int <a href="ident?i=main">main</a>(int argc, char ** <a href="ident?i=argv">argv</a>) <a name=L58 href="source/tools/build.c#L58">58</a> { <a name=L59 href="source/tools/build.c#L59">59</a> int i,c,id; <a name=L60 href="source/tools/build.c#L60">60</a> char <a href="ident?i=buf">buf</a>[1024]; <a name=L61 href="source/tools/build.c#L61">61</a> char major_root, minor_root; <a name=L62 href="source/tools/build.c#L62">62</a> struct <a href="ident?i=stat">stat</a> sb; <a name=L63 href="source/tools/build.c#L63">63</a> <a name=L64 href="source/tools/build.c#L64">64</a> if ((argc != 4) && (argc != 5)) <a name=L65 href="source/tools/build.c#L65">65</a> <a href="ident?i=usage">usage</a>(); <a name=L66 href="source/tools/build.c#L66">66</a> if (argc == 5) { <a name=L67 href="source/tools/build.c#L67">67</a> if (<a href="ident?i=strcmp">strcmp</a>(<a href="ident?i=argv">argv</a>[4], <i>"FLOPPY"</i>)) { <a name=L68 href="source/tools/build.c#L68">68</a> if (<a href="ident?i=stat">stat</a>(<a href="ident?i=argv">argv</a>[4], &sb)) { <a name=L69 href="source/tools/build.c#L69">69</a> perror(<a href="ident?i=argv">argv</a>[4]); <a name=L70 href="source/tools/build.c#L70">70</a> <a href="ident?i=die">die</a>(<i>"Couldn't stat root device."</i>); <a name=L71 href="source/tools/build.c#L71">71</a> } <a name=L72 href="source/tools/build.c#L72">72</a> major_root = <a href="ident?i=MAJOR">MAJOR</a>(sb.st_rdev); <a name=L73 href="source/tools/build.c#L73">73</a> minor_root = <a href="ident?i=MINOR">MINOR</a>(sb.st_rdev); <a name=L74 href="source/tools/build.c#L74">74</a> } else {⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -