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diff --git a/share/doc/gccint/All-Debuggers.html b/share/doc/gccint/All-Debuggers.html new file mode 100644 index 0000000..32da12b --- /dev/null +++ b/share/doc/gccint/All-Debuggers.html @@ -0,0 +1,155 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> +<html> +<!-- Copyright (C) 1988-2023 Free Software Foundation, Inc. + +Permission is granted to copy, distribute and/or modify this document +under the terms of the GNU Free Documentation License, Version 1.3 or +any later version published by the Free Software Foundation; with the +Invariant Sections being "Funding Free Software", the Front-Cover +Texts being (a) (see below), and with the Back-Cover Texts being (b) +(see below). A copy of the license is included in the section entitled +"GNU Free Documentation License". + +(a) The FSF's Front-Cover Text is: + +A GNU Manual + +(b) The FSF's Back-Cover Text is: + +You have freedom to copy and modify this GNU Manual, like GNU + software. Copies published by the Free Software Foundation raise + funds for GNU development. --> +<!-- Created by GNU Texinfo 5.1, http://www.gnu.org/software/texinfo/ --> +<head> +<title>GNU Compiler Collection (GCC) Internals: All Debuggers</title> + +<meta name="description" content="GNU Compiler Collection (GCC) Internals: All Debuggers"> +<meta name="keywords" content="GNU Compiler Collection (GCC) Internals: All Debuggers"> +<meta name="resource-type" content="document"> +<meta name="distribution" content="global"> +<meta name="Generator" content="makeinfo"> +<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> +<link href="index.html#Top" rel="start" title="Top"> +<link href="Option-Index.html#Option-Index" rel="index" title="Option Index"> +<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> +<link href="Debugging-Info.html#Debugging-Info" rel="up" title="Debugging Info"> +<link href="DWARF.html#DWARF" rel="next" title="DWARF"> +<link href="Debugging-Info.html#Debugging-Info" rel="previous" title="Debugging Info"> +<style type="text/css"> +<!-- +a.summary-letter {text-decoration: none} +blockquote.smallquotation {font-size: smaller} +div.display {margin-left: 3.2em} +div.example {margin-left: 3.2em} +div.indentedblock {margin-left: 3.2em} +div.lisp {margin-left: 3.2em} +div.smalldisplay {margin-left: 3.2em} +div.smallexample {margin-left: 3.2em} +div.smallindentedblock {margin-left: 3.2em; font-size: smaller} +div.smalllisp {margin-left: 3.2em} +kbd {font-style:oblique} +pre.display {font-family: inherit} +pre.format {font-family: inherit} +pre.menu-comment {font-family: serif} +pre.menu-preformatted {font-family: serif} +pre.smalldisplay {font-family: inherit; font-size: smaller} +pre.smallexample {font-size: smaller} +pre.smallformat {font-family: inherit; font-size: smaller} +pre.smalllisp {font-size: smaller} +span.nocodebreak {white-space:nowrap} +span.nolinebreak {white-space:nowrap} +span.roman {font-family:serif; font-weight:normal} +span.sansserif {font-family:sans-serif; font-weight:normal} +ul.no-bullet {list-style: none} +--> +</style> + + +</head> + +<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000"> +<a name="All-Debuggers"></a> +<div class="header"> +<p> +Next: <a href="DWARF.html#DWARF" accesskey="n" rel="next">DWARF</a>, Up: <a href="Debugging-Info.html#Debugging-Info" accesskey="u" rel="up">Debugging Info</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p> +</div> +<hr> +<a name="Macros-Affecting-All-Debugging-Formats"></a> +<h4 class="subsection">18.21.1 Macros Affecting All Debugging Formats</h4> + +<p>These macros affect all debugging formats. +</p> +<dl> +<dt><a name="index-DEBUGGER_005fREGNO"></a>Macro: <strong>DEBUGGER_REGNO</strong> <em>(<var>regno</var>)</em></dt> +<dd><p>A C expression that returns the debugger register number for the compiler +register number <var>regno</var>. In the default macro provided, the value +of this expression will be <var>regno</var> itself. But sometimes there are +some registers that the compiler knows about and debugger does not, or vice +versa. In such cases, some register may need to have one number in the +compiler and another for debugger. +</p> +<p>If two registers have consecutive numbers inside GCC, and they can be +used as a pair to hold a multiword value, then they <em>must</em> have +consecutive numbers after renumbering with <code>DEBUGGER_REGNO</code>. +Otherwise, debuggers will be unable to access such a pair, because they +expect register pairs to be consecutive in their own numbering scheme. +</p> +<p>If you find yourself defining <code>DEBUGGER_REGNO</code> in way that +does not preserve register pairs, then what you must do instead is +redefine the actual register numbering scheme. +</p></dd></dl> + +<dl> +<dt><a name="index-DEBUGGER_005fAUTO_005fOFFSET"></a>Macro: <strong>DEBUGGER_AUTO_OFFSET</strong> <em>(<var>x</var>)</em></dt> +<dd><p>A C expression that returns the integer offset value for an automatic +variable having address <var>x</var> (an RTL expression). The default +computation assumes that <var>x</var> is based on the frame-pointer and +gives the offset from the frame-pointer. This is required for targets +that produce debugging output for debugger and allow the frame-pointer to be +eliminated when the <samp>-g</samp> option is used. +</p></dd></dl> + +<dl> +<dt><a name="index-DEBUGGER_005fARG_005fOFFSET"></a>Macro: <strong>DEBUGGER_ARG_OFFSET</strong> <em>(<var>offset</var>, <var>x</var>)</em></dt> +<dd><p>A C expression that returns the integer offset value for an argument +having address <var>x</var> (an RTL expression). The nominal offset is +<var>offset</var>. +</p></dd></dl> + +<dl> +<dt><a name="index-PREFERRED_005fDEBUGGING_005fTYPE"></a>Macro: <strong>PREFERRED_DEBUGGING_TYPE</strong></dt> +<dd><p>A C expression that returns the type of debugging output GCC should +produce when the user specifies just <samp>-g</samp>. Define +this if you have arranged for GCC to support more than one format of +debugging output. Currently, the allowable values are +<code>DWARF2_DEBUG</code>, <code>VMS_DEBUG</code>, +and <code>VMS_AND_DWARF2_DEBUG</code>. +</p> +<p>When the user specifies <samp>-ggdb</samp>, GCC normally also uses the +value of this macro to select the debugging output format, but with two +exceptions. If <code>DWARF2_DEBUGGING_INFO</code> is defined, GCC uses the +value <code>DWARF2_DEBUG</code>. +</p> +<p>The value of this macro only affects the default debugging output; the +user can always get a specific type of output by using <samp>-gdwarf-2</samp>, +or <samp>-gvms</samp>. +</p></dd></dl> + +<dl> +<dt><a name="index-DEFAULT_005fGDB_005fEXTENSIONS"></a>Macro: <strong>DEFAULT_GDB_EXTENSIONS</strong></dt> +<dd><p>Define this macro to control whether GCC should by default generate +GDB’s extended version of debugging information. If you don’t define the +macro, the default is 1: always generate the extended information +if there is any occasion to. +</p></dd></dl> + +<hr> +<div class="header"> +<p> +Next: <a href="DWARF.html#DWARF" accesskey="n" rel="next">DWARF</a>, Up: <a href="Debugging-Info.html#Debugging-Info" accesskey="u" rel="up">Debugging Info</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p> +</div> + + + +</body> +</html> |