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<div class="title">i386_exec.c File Reference</div> </div>
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<div class="textblock"><code>#include <<a class="el" href="__null_8h_source.html">sys/_null.h</a>></code><br />
<code>#include <<a class="el" href="include_2sys_2types_8h_source.html">sys/types.h</a>></code><br />
<code>#include <<a class="el" href="sys_2elf_8h_source.html">sys/elf.h</a>></code><br />
<code>#include <<a class="el" href="gdt_8h_source.html">sys/gdt.h</a>></code><br />
<code>#include <<a class="el" href="exec_8h_source.html">ubixos/exec.h</a>></code><br />
<code>#include <<a class="el" href="ld_8h_source.html">ubixos/ld.h</a>></code><br />
<code>#include <<a class="el" href="kpanic_8h_source.html">ubixos/kpanic.h</a>></code><br />
<code>#include <<a class="el" href="endtask_8h_source.html">ubixos/endtask.h</a>></code><br />
<code>#include <<a class="el" href="vmm_8h_source.html">vmm/vmm.h</a>></code><br />
<code>#include <<a class="el" href="kmalloc_8h_source.html">lib/kmalloc.h</a>></code><br />
<code>#include <<a class="el" href="kprintf_8h_source.html">lib/kprintf.h</a>></code><br />
<code>#include <<a class="el" href="include_2vfs_2file_8h_source.html">vfs/file.h</a>></code><br />
<code>#include <<a class="el" href="assert_8h_source.html">assert.h</a>></code><br />
<code>#include <<a class="el" href="string_8h_source.html">string.h</a>></code><br />
<code>#include <<a class="el" href="descrip_8h_source.html">sys/descrip.h</a>></code><br />
</div><div class="textblock"><div class="dynheader">
Include dependency graph for i386_exec.c:</div>
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<div class="center"><img src="i386__exec_8c__incl.png" border="0" usemap="#C_1_2Dev_2git_2UbixOS_2sys_2arch_2i386_2i386__exec_8c" alt=""/></div>
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<p><a href="i386__exec_8c_source.html">Go to the source code of this file.</a></p>
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Macros</h2></td></tr>
<tr class="memitem:a2f29812bcfd1b9ad2a0b165a3b3c6d4a"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="i386__exec_8c.html#a2f29812bcfd1b9ad2a0b165a3b3c6d4a">ARGV_PAGE</a>   0x100</td></tr>
<tr class="separator:a2f29812bcfd1b9ad2a0b165a3b3c6d4a"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a9b8e51a44a47d7ea827c570ffdca14e5"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="i386__exec_8c.html#a9b8e51a44a47d7ea827c570ffdca14e5">AT_BASE</a>   7 /* Interpreter's base address. */</td></tr>
<tr class="separator:a9b8e51a44a47d7ea827c570ffdca14e5"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a80f2ea99241a6afdc4718d3c4318c871"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="i386__exec_8c.html#a80f2ea99241a6afdc4718d3c4318c871">AT_ENTRY</a>   9 /* Where interpreter should transfer control. */</td></tr>
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<tr class="memitem:a8a3070773d3f9231c9390172ae3fd2e7"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="i386__exec_8c.html#a8a3070773d3f9231c9390172ae3fd2e7">AT_EXECFD</a>   2 /* File descriptor of program to load. */</td></tr>
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<tr class="memitem:a08c6bdc11224c9d17fbde19666c332cc"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="i386__exec_8c.html#a08c6bdc11224c9d17fbde19666c332cc">AT_FLAGS</a>   8 /* Flags (unused for i386). */</td></tr>
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<tr class="memitem:ab11dfd4fb71c15a128c3f70a310b53d1"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="i386__exec_8c.html#ab11dfd4fb71c15a128c3f70a310b53d1">AT_IGNORE</a>   1 /* Ignored entry. */</td></tr>
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<tr class="memitem:aa893f7231479240d49c660c5649cac5b"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="i386__exec_8c.html#aa893f7231479240d49c660c5649cac5b">AT_NULL</a>   0 /* Terminates the vector. */</td></tr>
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<tr class="memitem:a7269f0c135d4bd3f9bc074d18fb30f9d"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="i386__exec_8c.html#a7269f0c135d4bd3f9bc074d18fb30f9d">AT_PAGESZ</a>   6 /* Page size in bytes. */</td></tr>
<tr class="separator:a7269f0c135d4bd3f9bc074d18fb30f9d"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a3de7ec7b5cee2d34208387ab97dc0642"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="i386__exec_8c.html#a3de7ec7b5cee2d34208387ab97dc0642">AT_PHDR</a>   3 /* Program header of program already loaded. */</td></tr>
<tr class="separator:a3de7ec7b5cee2d34208387ab97dc0642"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a56f1f9975d88f768d7928b0ed587ef38"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="i386__exec_8c.html#a56f1f9975d88f768d7928b0ed587ef38">AT_PHENT</a>   4 /* <a class="el" href="elf__generic_8h.html#a8f083052502d1aead5adf3f980dede7a">Size</a> of each program header entry. */</td></tr>
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<tr class="memitem:abc712c67bee059574b4e3c096538d5bd"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="i386__exec_8c.html#abc712c67bee059574b4e3c096538d5bd">AT_PHNUM</a>   5 /* Number of program header entries. */</td></tr>
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<tr class="memitem:afa8ddb544ff5a7ec07bbe00b16927559"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="i386__exec_8c.html#afa8ddb544ff5a7ec07bbe00b16927559">AUXARGS_ENTRY</a>(pos, <a class="el" href="kernel_2elf_8c.html#affd99ec09f321a630ec19d0333e291cd">id</a>, val)   {*pos = <a class="el" href="kernel_2elf_8c.html#affd99ec09f321a630ec19d0333e291cd">id</a>;pos++; *pos = val;pos++;}</td></tr>
<tr class="separator:afa8ddb544ff5a7ec07bbe00b16927559"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:af47d51fffc4c46a034ec9a821ecfb7d0"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="i386__exec_8c.html#af47d51fffc4c46a034ec9a821ecfb7d0">ELF_AUX</a>   0x100</td></tr>
<tr class="separator:af47d51fffc4c46a034ec9a821ecfb7d0"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a4d0b1b435ec441e7d50a430b83df5832"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="i386__exec_8c.html#a4d0b1b435ec441e7d50a430b83df5832">ENOEXEC</a>   -1</td></tr>
<tr class="separator:a4d0b1b435ec441e7d50a430b83df5832"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a04dd67a9a0ea56bb6cf7943ac00a1626"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="i386__exec_8c.html#a04dd67a9a0ea56bb6cf7943ac00a1626">ENVP_PAGE</a>   0x100</td></tr>
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<tr class="memitem:a43c6dc010a1eea4fbe8de72a0826195b"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="i386__exec_8c.html#a43c6dc010a1eea4fbe8de72a0826195b">STACK_PAD</a>   0x1000</td></tr>
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Functions</h2></td></tr>
<tr class="memitem:aaff6720506bf63686b0c962ea31439d3"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="i386__exec_8c.html#aaff6720506bf63686b0c962ea31439d3">execFile</a> (char *<a class="el" href="structfile.html">file</a>, char **argv, char **envp, int console)</td></tr>
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<tr class="memitem:a2d25af2b05aa5dc4392daf1d97a3aa94"><td class="memItemLeft" align="right" valign="top"><a class="el" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="i386__exec_8c.html#a2d25af2b05aa5dc4392daf1d97a3aa94">execThread</a> (void(*tproc)(void), <a class="el" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> stack, char *arg)</td></tr>
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<tr class="memitem:a8ca0db98ca165b1662f4b37b2d27b265"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="i386__exec_8c.html#a8ca0db98ca165b1662f4b37b2d27b265">sys_exec</a> (struct <a class="el" href="structthread.html">thread</a> *td, char *<a class="el" href="structfile.html">file</a>, char **argv, char **envp)</td></tr>
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</table>
<h2 class="groupheader">Macro Definition Documentation</h2>
<a id="a2f29812bcfd1b9ad2a0b165a3b3c6d4a"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a2f29812bcfd1b9ad2a0b165a3b3c6d4a">◆ </a></span>ARGV_PAGE</h2>
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<td class="memname">#define ARGV_PAGE   0x100</td>
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<p class="definition">Definition at line <a class="el" href="i386__exec_8c_source.html#l00046">46</a> of file <a class="el" href="i386__exec_8c_source.html">i386_exec.c</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a9b8e51a44a47d7ea827c570ffdca14e5">◆ </a></span>AT_BASE</h2>
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<td class="memname">#define AT_BASE   7 /* Interpreter's base address. */</td>
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<p class="definition">Definition at line <a class="el" href="i386__exec_8c_source.html#l00059">59</a> of file <a class="el" href="i386__exec_8c_source.html">i386_exec.c</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a80f2ea99241a6afdc4718d3c4318c871">◆ </a></span>AT_ENTRY</h2>
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<td class="memname">#define AT_ENTRY   9 /* Where interpreter should transfer control. */</td>
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<p class="definition">Definition at line <a class="el" href="i386__exec_8c_source.html#l00061">61</a> of file <a class="el" href="i386__exec_8c_source.html">i386_exec.c</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a8a3070773d3f9231c9390172ae3fd2e7">◆ </a></span>AT_EXECFD</h2>
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<td class="memname">#define AT_EXECFD   2 /* File descriptor of program to load. */</td>
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<p class="definition">Definition at line <a class="el" href="i386__exec_8c_source.html#l00054">54</a> of file <a class="el" href="i386__exec_8c_source.html">i386_exec.c</a>.</p>
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<td class="memname">#define AT_FLAGS   8 /* Flags (unused for i386). */</td>
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<p class="definition">Definition at line <a class="el" href="i386__exec_8c_source.html#l00060">60</a> of file <a class="el" href="i386__exec_8c_source.html">i386_exec.c</a>.</p>
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<td class="memname">#define AT_IGNORE   1 /* Ignored entry. */</td>
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<p class="definition">Definition at line <a class="el" href="i386__exec_8c_source.html#l00053">53</a> of file <a class="el" href="i386__exec_8c_source.html">i386_exec.c</a>.</p>
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<td class="memname">#define AT_NULL   0 /* Terminates the vector. */</td>
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<p class="definition">Definition at line <a class="el" href="i386__exec_8c_source.html#l00052">52</a> of file <a class="el" href="i386__exec_8c_source.html">i386_exec.c</a>.</p>
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<td class="memname">#define AT_PAGESZ   6 /* Page size in bytes. */</td>
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<p class="definition">Definition at line <a class="el" href="i386__exec_8c_source.html#l00058">58</a> of file <a class="el" href="i386__exec_8c_source.html">i386_exec.c</a>.</p>
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<td class="memname">#define AT_PHDR   3 /* Program header of program already loaded. */</td>
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<p class="definition">Definition at line <a class="el" href="i386__exec_8c_source.html#l00055">55</a> of file <a class="el" href="i386__exec_8c_source.html">i386_exec.c</a>.</p>
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<td class="memname">#define AT_PHENT   4 /* <a class="el" href="elf__generic_8h.html#a8f083052502d1aead5adf3f980dede7a">Size</a> of each program header entry. */</td>
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<p class="definition">Definition at line <a class="el" href="i386__exec_8c_source.html#l00056">56</a> of file <a class="el" href="i386__exec_8c_source.html">i386_exec.c</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#abc712c67bee059574b4e3c096538d5bd">◆ </a></span>AT_PHNUM</h2>
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<td class="memname">#define AT_PHNUM   5 /* Number of program header entries. */</td>
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<p class="definition">Definition at line <a class="el" href="i386__exec_8c_source.html#l00057">57</a> of file <a class="el" href="i386__exec_8c_source.html">i386_exec.c</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#afa8ddb544ff5a7ec07bbe00b16927559">◆ </a></span>AUXARGS_ENTRY</h2>
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<td class="memname">#define AUXARGS_ENTRY</td>
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<td class="paramtype"> </td>
<td class="paramname">pos, </td>
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<td class="paramtype"> </td>
<td class="paramname"><a class="el" href="kernel_2elf_8c.html#affd99ec09f321a630ec19d0333e291cd">id</a>, </td>
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<td class="paramtype"> </td>
<td class="paramname">val </td>
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<td>)</td>
<td></td><td>   {*pos = <a class="el" href="kernel_2elf_8c.html#affd99ec09f321a630ec19d0333e291cd">id</a>;pos++; *pos = val;pos++;}</td>
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<p class="definition">Definition at line <a class="el" href="i386__exec_8c_source.html#l00063">63</a> of file <a class="el" href="i386__exec_8c_source.html">i386_exec.c</a>.</p>
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<a id="af47d51fffc4c46a034ec9a821ecfb7d0"></a>
<h2 class="memtitle"><span class="permalink"><a href="#af47d51fffc4c46a034ec9a821ecfb7d0">◆ </a></span>ELF_AUX</h2>
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<td class="memname">#define ELF_AUX   0x100</td>
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<p class="definition">Definition at line <a class="el" href="i386__exec_8c_source.html#l00047">47</a> of file <a class="el" href="i386__exec_8c_source.html">i386_exec.c</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a4d0b1b435ec441e7d50a430b83df5832">◆ </a></span>ENOEXEC</h2>
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<td class="memname">#define ENOEXEC   -1</td>
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<p class="definition">Definition at line <a class="el" href="i386__exec_8c_source.html#l00050">50</a> of file <a class="el" href="i386__exec_8c_source.html">i386_exec.c</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a04dd67a9a0ea56bb6cf7943ac00a1626">◆ </a></span>ENVP_PAGE</h2>
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<td class="memname">#define ENVP_PAGE   0x100</td>
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<p class="definition">Definition at line <a class="el" href="i386__exec_8c_source.html#l00045">45</a> of file <a class="el" href="i386__exec_8c_source.html">i386_exec.c</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a43c6dc010a1eea4fbe8de72a0826195b">◆ </a></span>STACK_PAD</h2>
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<td class="memname">#define STACK_PAD   0x1000</td>
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<p class="definition">Definition at line <a class="el" href="i386__exec_8c_source.html#l00048">48</a> of file <a class="el" href="i386__exec_8c_source.html">i386_exec.c</a>.</p>
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<h2 class="groupheader">Function Documentation</h2>
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<h2 class="memtitle"><span class="permalink"><a href="#aaff6720506bf63686b0c962ea31439d3">◆ </a></span>execFile()</h2>
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<td class="memname">void execFile </td>
<td>(</td>
<td class="paramtype">char * </td>
<td class="paramname"><em>file</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">char ** </td>
<td class="paramname"><em>argv</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">char ** </td>
<td class="paramname"><em>envp</em>, </td>
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<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>console</em> </td>
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<td>)</td>
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<p class="definition">Definition at line <a class="el" href="i386__exec_8c_source.html#l00244">244</a> of file <a class="el" href="i386__exec_8c_source.html">i386_exec.c</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a2d25af2b05aa5dc4392daf1d97a3aa94">◆ </a></span>execThread()</h2>
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<td class="memname"><a class="el" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> execThread </td>
<td>(</td>
<td class="paramtype">void(*)(void) </td>
<td class="paramname"><em>tproc</em>, </td>
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<td class="paramkey"></td>
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<td class="paramtype"><a class="el" href="include_2sys_2types_8h.html#a0238af00180b6d9278fa1c6aa790fdf4">uint32_t</a> </td>
<td class="paramname"><em>stack</em>, </td>
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<td class="paramtype">char * </td>
<td class="paramname"><em>arg</em> </td>
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<td>)</td>
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<p class="definition">Definition at line <a class="el" href="i386__exec_8c_source.html#l00148">148</a> of file <a class="el" href="i386__exec_8c_source.html">i386_exec.c</a>.</p>
<p class="reference">References <a class="el" href="assert_8h_source.html#l00064">assert</a>, <a class="el" href="tss_8h_source.html#l00035">tssStruct::back_link</a>, <a class="el" href="tss_8h_source.html#l00046">tssStruct::cr3</a>, <a class="el" href="tss_8h_source.html#l00056">tssStruct::cs</a>, <a class="el" href="tss_8h_source.html#l00060">tssStruct::ds</a>, <a class="el" href="tss_8h_source.html#l00051">tssStruct::ebp</a>, <a class="el" href="tss_8h_source.html#l00053">tssStruct::edi</a>, <a class="el" href="tss_8h_source.html#l00048">tssStruct::eflags</a>, <a class="el" href="tss_8h_source.html#l00047">tssStruct::eip</a>, <a class="el" href="tss_8h_source.html#l00054">tssStruct::es</a>, <a class="el" href="tss_8h_source.html#l00052">tssStruct::esi</a>, <a class="el" href="tss_8h_source.html#l00050">tssStruct::esp</a>, <a class="el" href="tss_8h_source.html#l00037">tssStruct::esp0</a>, <a class="el" href="tss_8h_source.html#l00040">tssStruct::esp1</a>, <a class="el" href="tss_8h_source.html#l00043">tssStruct::esp2</a>, <a class="el" href="sched_8h_source.html#l00071">taskStruct::files</a>, <a class="el" href="tss_8h_source.html#l00062">tssStruct::fs</a>, <a class="el" href="tss_8h_source.html#l00064">tssStruct::gs</a>, <a class="el" href="sched_8h_source.html#l00063">taskStruct::id</a>, <a class="el" href="tss_8h_source.html#l00069">tssStruct::io_map</a>, <a class="el" href="paging_8c_source.html#l00041">kernelPageDirectory</a>, <a class="el" href="armv6_2kpanic_8c_source.html#l00041">kpanic()</a>, <a class="el" href="tss_8h_source.html#l00066">tssStruct::ldt</a>, <a class="el" href="sched_8h_source.html#l00069">taskStruct::oInfo</a>, <a class="el" href="paging_8h_source.html#l00037">PAGE_SIZE</a>, <a class="el" href="sched_8h_source.html#l00047">READY</a>, <a class="el" href="armv6_2sched_8c_source.html#l00265">sched_setStatus()</a>, <a class="el" href="armv6_2sched_8c_source.html#l00135">schedNewTask()</a>, <a class="el" href="tss_8h_source.html#l00058">tssStruct::ss</a>, <a class="el" href="tss_8h_source.html#l00038">tssStruct::ss0</a>, <a class="el" href="tss_8h_source.html#l00041">tssStruct::ss1</a>, <a class="el" href="tss_8h_source.html#l00044">tssStruct::ss2</a>, <a class="el" href="tss_8h_source.html#l00068">tssStruct::trace_bitmap</a>, <a class="el" href="sched_8h_source.html#l00067">taskStruct::tss</a>, <a class="el" href="paging_8c_source.html#l00291">vmm_getFreeKernelPage()</a>, and <a class="el" href="sched_8h_source.html#l00054">osInfo::vmStart</a>.</p>
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Here is the call graph for this function:</div>
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<h2 class="memtitle"><span class="permalink"><a href="#a8ca0db98ca165b1662f4b37b2d27b265">◆ </a></span>sys_exec()</h2>
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<td class="memname">int sys_exec </td>
<td>(</td>
<td class="paramtype">struct <a class="el" href="structthread.html">thread</a> * </td>
<td class="paramname"><em>td</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">char * </td>
<td class="paramname"><em>file</em>, </td>
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<td></td>
<td class="paramtype">char ** </td>
<td class="paramname"><em>argv</em>, </td>
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<td></td>
<td class="paramtype">char ** </td>
<td class="paramname"><em>envp</em> </td>
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<td>)</td>
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<p>Clean the virtual of COW pages left over from the fork</p>
<p class="definition">Definition at line <a class="el" href="i386__exec_8c_source.html#l00491">491</a> of file <a class="el" href="i386__exec_8c_source.html">i386_exec.c</a>.</p>
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