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110 lines
4.3 KiB
HTML
110 lines
4.3 KiB
HTML
4 years ago
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<!-- Copyright (C) 1992-2019 Free Software Foundation, Inc.
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Contributed by Cygnus Support. Written by Julia Menapace, Jim Kingdon,
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and David MacKenzie.
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3 or
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any later version published by the Free Software Foundation; with no
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Invariant Sections, with no Front-Cover Texts, and with no Back-Cover
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Texts. A copy of the license is included in the section entitled "GNU
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Free Documentation License". -->
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<!-- Created by GNU Texinfo 6.4, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>Nested Procedures (STABS)</title>
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<meta name="description" content="Nested Procedures (STABS)">
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<meta name="keywords" content="Nested Procedures (STABS)">
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<meta name="resource-type" content="document">
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<meta name="distribution" content="global">
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<meta name="Generator" content="makeinfo">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<link href="index.html#Top" rel="start" title="Top">
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<link href="Symbol-Types-Index.html#Symbol-Types-Index" rel="index" title="Symbol Types Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Program-Structure.html#Program-Structure" rel="up" title="Program Structure">
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<link href="Block-Structure.html#Block-Structure" rel="next" title="Block Structure">
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<link href="Procedures.html#Procedures" rel="prev" title="Procedures">
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<style type="text/css">
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a.summary-letter {text-decoration: none}
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kbd {font-style: oblique}
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span.nolinebreak {white-space: nowrap}
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ul.no-bullet {list-style: none}
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-->
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</style>
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</head>
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<body lang="en">
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<a name="Nested-Procedures"></a>
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<div class="header">
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<p>
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Next: <a href="Block-Structure.html#Block-Structure" accesskey="n" rel="next">Block Structure</a>, Previous: <a href="Procedures.html#Procedures" accesskey="p" rel="prev">Procedures</a>, Up: <a href="Program-Structure.html#Program-Structure" accesskey="u" rel="up">Program Structure</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Symbol-Types-Index.html#Symbol-Types-Index" title="Index" rel="index">Index</a>]</p>
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</div>
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<hr>
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<a name="Nested-Procedures-1"></a>
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<h3 class="section">2.6 Nested Procedures</h3>
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<p>For any of the symbol descriptors representing procedures, after the
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symbol descriptor and the type information is optionally a scope
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specifier. This consists of a comma, the name of the procedure, another
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comma, and the name of the enclosing procedure. The first name is local
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to the scope specified, and seems to be redundant with the name of the
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symbol (before the ‘<samp>:</samp>’). This feature is used by GCC, and
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presumably Pascal, Modula-2, etc., compilers, for nested functions.
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</p>
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<p>If procedures are nested more than one level deep, only the immediately
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containing scope is specified. For example, this code:
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</p>
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<div class="example">
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<pre class="example">int
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foo (int x)
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{
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int bar (int y)
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{
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int baz (int z)
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{
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return x + y + z;
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}
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return baz (x + 2 * y);
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}
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return x + bar (3 * x);
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}
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</pre></div>
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<p>produces the stabs:
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</p>
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<div class="example">
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<pre class="example">.stabs "baz:f1,baz,bar",36,0,0,_baz.15 # <span class="roman">36 is N_FUN</span>
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.stabs "bar:f1,bar,foo",36,0,0,_bar.12
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.stabs "foo:F1",36,0,0,_foo
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</pre></div>
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</body>
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</html>
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