71 lines
2.6 KiB
HTML
71 lines
2.6 KiB
HTML
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<meta name="generator" content="AsciiDoc 8.6.9" />
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<title>Shellcode Compiler Runtime</title>
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<div>»<a href="index.html">Home</a></div>
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<div>»<a href="examples.html">Examples</a></div>
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<div>»<a href="scc.html">Invocation</a></div>
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<div>»<a href="runtime.html">Runtime Library</a></div>
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<div>»<a href="python.html">Python Bindings</a></div>
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</div>
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</div>
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<div id="layout-content-box">
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<div id="layout-banner">
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<div id="layout-title">Shellcode Compiler</div>
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<div id="layout-description">A custom shellcode compiler for Binary Ninja</div>
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</div>
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<div id="layout-content">
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<div id="header">
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<h1>__syscall</h1>
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</div>
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<div id="content">
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<div id="preamble">
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<div class="sectionbody">
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<div class="listingblock">
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<div class="content monospaced">
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<pre>long __syscall(long num, ...);</pre>
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</div></div>
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<div class="paragraph"><p>Issues system call number <span class="monospaced">num</span> on the target platform. Any additional arguments are passed directly
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to the system call. Returns the result of the system call.</p></div>
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<div class="admonitionblock">
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<table><tr>
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<td class="icon">
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<img src="./images/icons/important.png" alt="Important">
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</td>
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<td class="content">On platforms that set a processor flag on error, such as FreeBSD, the <span class="monospaced">__syscall</span> function
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will return the negation of the error code on error. This is to allow for unified behaviour across
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different platforms. For example, checking the result of the <span class="monospaced">open</span> call for <span class="monospaced">-ENOENT</span> will work
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across all supported UNIX-based platforms.</td>
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</tr></table>
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</div>
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</div>
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</div>
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<div class="sect1">
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<h2 id="_see_also">See also</h2>
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<div class="sectionbody">
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<div class="paragraph"><p><a href="syscall2.html">syscall2</a></p></div>
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</div>
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</div>
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</div>
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<div id="footnotes"><hr /></div>
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</div>
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</div>
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</body>
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</html>
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