binaryninja/personal/scc-docs/syscall.html

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<h1>__syscall</h1>
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<pre>long __syscall(long num, ...);</pre>
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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
to the system call. Returns the result of the system call.</p></div>
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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
will return the negation of the error code on error. This is to allow for unified behaviour across
different platforms. For example, checking the result of the <span class="monospaced">open</span> call for <span class="monospaced">-ENOENT</span> will work
across all supported UNIX-based platforms.</td>
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<h2 id="_see_also">See also</h2>
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<div class="paragraph"><p><a href="syscall2.html">syscall2</a></p></div>
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