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| author | alk3pInjection <webmaster@raspii.tech> | 2024-02-04 16:16:35 +0800 |
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| committer | alk3pInjection <webmaster@raspii.tech> | 2024-02-04 16:16:35 +0800 |
| commit | 6ce4ebed87858ecdd79a1091367c6e961055daa9 (patch) | |
| tree | 1c2a6a60531acf791531bbd9c8ac14c23ef8a66c /share/doc/gdb/Inferiors-In-Python.html | |
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diff --git a/share/doc/gdb/Inferiors-In-Python.html b/share/doc/gdb/Inferiors-In-Python.html new file mode 100644 index 0000000..fb7040b --- /dev/null +++ b/share/doc/gdb/Inferiors-In-Python.html @@ -0,0 +1,212 @@ +<!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 "Free Software" and "Free Software Needs +Free Documentation", with the Front-Cover Texts being "A GNU Manual," +and with the Back-Cover Texts as in (a) below. + +(a) The FSF's Back-Cover Text is: "You are free to copy and modify +this GNU Manual. Buying copies from GNU Press supports the FSF in +developing GNU and promoting software freedom." --> +<!-- Created by GNU Texinfo 5.1, http://www.gnu.org/software/texinfo/ --> +<head> +<title>Debugging with GDB: Inferiors In Python</title> + +<meta name="description" content="Debugging with GDB: Inferiors In Python"> +<meta name="keywords" content="Debugging with GDB: Inferiors In Python"> +<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="Concept-Index.html#Concept-Index" rel="index" title="Concept Index"> +<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> +<link href="Python-API.html#Python-API" rel="up" title="Python API"> +<link href="Events-In-Python.html#Events-In-Python" rel="next" title="Events In Python"> +<link href="Writing-an-Xmethod.html#Writing-an-Xmethod" rel="previous" title="Writing an Xmethod"> +<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="Inferiors-In-Python"></a> +<div class="header"> +<p> +Next: <a href="Events-In-Python.html#Events-In-Python" accesskey="n" rel="next">Events In Python</a>, Previous: <a href="Writing-an-Xmethod.html#Writing-an-Xmethod" accesskey="p" rel="previous">Writing an Xmethod</a>, Up: <a href="Python-API.html#Python-API" accesskey="u" rel="up">Python API</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p> +</div> +<hr> +<a name="Inferiors-In-Python-1"></a> +<h4 class="subsubsection">23.3.2.16 Inferiors In Python</h4> +<a name="index-inferiors-in-Python"></a> + +<a name="index-gdb_002eInferior"></a> +<p>Programs which are being run under <small>GDB</small> are called inferiors +(see <a href="Inferiors-Connections-and-Programs.html#Inferiors-Connections-and-Programs">Inferiors Connections and Programs</a>). Python scripts can access +information about and manipulate inferiors controlled by <small>GDB</small> +via objects of the <code>gdb.Inferior</code> class. +</p> +<p>The following inferior-related functions are available in the <code>gdb</code> +module: +</p> +<dl> +<dt><a name="index-gdb_002einferiors"></a>Function: <strong>gdb.inferiors</strong> <em>()</em></dt> +<dd><p>Return a tuple containing all inferior objects. +</p></dd></dl> + +<dl> +<dt><a name="index-gdb_002eselected_005finferior"></a>Function: <strong>gdb.selected_inferior</strong> <em>()</em></dt> +<dd><p>Return an object representing the current inferior. +</p></dd></dl> + +<p>A <code>gdb.Inferior</code> object has the following attributes: +</p> +<dl> +<dt><a name="index-Inferior_002enum"></a>Variable: <strong>Inferior.num</strong></dt> +<dd><p>ID of inferior, as assigned by GDB. +</p></dd></dl> + +<a name="gdbpy_005finferior_005fconnection"></a><dl> +<dt><a name="index-Inferior_002econnection"></a>Variable: <strong>Inferior.connection</strong></dt> +<dd><p>The <code>gdb.TargetConnection</code> for this inferior (see <a href="Connections-In-Python.html#Connections-In-Python">Connections In Python</a>), or <code>None</code> if this inferior has no connection. +</p></dd></dl> + +<dl> +<dt><a name="index-Inferior_002econnection_005fnum"></a>Variable: <strong>Inferior.connection_num</strong></dt> +<dd><p>ID of inferior’s connection as assigned by <small>GDB</small>, or None if +the inferior is not connected to a target. See <a href="Inferiors-Connections-and-Programs.html#Inferiors-Connections-and-Programs">Inferiors Connections and Programs</a>. This is equivalent to +<code>gdb.Inferior.connection.num</code> in the case where +<code>gdb.Inferior.connection</code> is not <code>None</code>. +</p></dd></dl> + +<dl> +<dt><a name="index-Inferior_002epid"></a>Variable: <strong>Inferior.pid</strong></dt> +<dd><p>Process ID of the inferior, as assigned by the underlying operating +system. +</p></dd></dl> + +<dl> +<dt><a name="index-Inferior_002ewas_005fattached"></a>Variable: <strong>Inferior.was_attached</strong></dt> +<dd><p>Boolean signaling whether the inferior was created using ‘attach’, or +started by <small>GDB</small> itself. +</p></dd></dl> + +<dl> +<dt><a name="index-Inferior_002eprogspace"></a>Variable: <strong>Inferior.progspace</strong></dt> +<dd><p>The inferior’s program space. See <a href="Progspaces-In-Python.html#Progspaces-In-Python">Progspaces In Python</a>. +</p></dd></dl> + +<p>A <code>gdb.Inferior</code> object has the following methods: +</p> +<dl> +<dt><a name="index-Inferior_002eis_005fvalid"></a>Function: <strong>Inferior.is_valid</strong> <em>()</em></dt> +<dd><p>Returns <code>True</code> if the <code>gdb.Inferior</code> object is valid, +<code>False</code> if not. A <code>gdb.Inferior</code> object will become invalid +if the inferior no longer exists within <small>GDB</small>. All other +<code>gdb.Inferior</code> methods will throw an exception if it is invalid +at the time the method is called. +</p></dd></dl> + +<dl> +<dt><a name="index-Inferior_002ethreads"></a>Function: <strong>Inferior.threads</strong> <em>()</em></dt> +<dd><p>This method returns a tuple holding all the threads which are valid +when it is called. If there are no valid threads, the method will +return an empty tuple. +</p></dd></dl> + +<dl> +<dt><a name="index-Inferior_002earchitecture"></a>Function: <strong>Inferior.architecture</strong> <em>()</em></dt> +<dd><p>Return the <code>gdb.Architecture</code> (see <a href="Architectures-In-Python.html#Architectures-In-Python">Architectures In Python</a>) +for this inferior. This represents the architecture of the inferior +as a whole. Some platforms can have multiple architectures in a +single address space, so this may not match the architecture of a +particular frame (see <a href="Frames-In-Python.html#Frames-In-Python">Frames In Python</a>). +</p></dd></dl> + +<a name="gdbpy_005finferior_005fread_005fmemory"></a><a name="index-Inferior_002eread_005fmemory"></a> +<dl> +<dt><a name="index-Inferior_002eread_005fmemory-1"></a>Function: <strong>Inferior.read_memory</strong> <em>(address, length)</em></dt> +<dd><p>Read <var>length</var> addressable memory units from the inferior, starting at +<var>address</var>. Returns a buffer object, which behaves much like an array +or a string. It can be modified and given to the +<code>Inferior.write_memory</code> function. In Python 3, the return +value is a <code>memoryview</code> object. +</p></dd></dl> + +<a name="index-Inferior_002ewrite_005fmemory"></a> +<dl> +<dt><a name="index-Inferior_002ewrite_005fmemory-1"></a>Function: <strong>Inferior.write_memory</strong> <em>(address, buffer <span class="roman">[</span>, length<span class="roman">]</span>)</em></dt> +<dd><p>Write the contents of <var>buffer</var> to the inferior, starting at +<var>address</var>. The <var>buffer</var> parameter must be a Python object +which supports the buffer protocol, i.e., a string, an array or the +object returned from <code>Inferior.read_memory</code>. If given, <var>length</var> +determines the number of addressable memory units from <var>buffer</var> to be +written. +</p></dd></dl> + +<a name="index-gdb_002esearch_005fmemory"></a> +<dl> +<dt><a name="index-Inferior_002esearch_005fmemory"></a>Function: <strong>Inferior.search_memory</strong> <em>(address, length, pattern)</em></dt> +<dd><p>Search a region of the inferior memory starting at <var>address</var> with +the given <var>length</var> using the search pattern supplied in +<var>pattern</var>. The <var>pattern</var> parameter must be a Python object +which supports the buffer protocol, i.e., a string, an array or the +object returned from <code>gdb.read_memory</code>. Returns a Python <code>Long</code> +containing the address where the pattern was found, or <code>None</code> if +the pattern could not be found. +</p></dd></dl> + +<a name="index-Inferior_002ethread_005ffrom_005fhandle"></a> +<a name="index-Inferior_002ethread_005ffrom_005fthread_005fhandle"></a> +<dl> +<dt><a name="index-Inferior_002ethread_005ffrom_005fhandle-1"></a>Function: <strong>Inferior.thread_from_handle</strong> <em>(handle)</em></dt> +<dd><p>Return the thread object corresponding to <var>handle</var>, a thread +library specific data structure such as <code>pthread_t</code> for pthreads +library implementations. +</p> +<p>The function <code>Inferior.thread_from_thread_handle</code> provides +the same functionality, but use of <code>Inferior.thread_from_thread_handle</code> +is deprecated. +</p></dd></dl> + +<hr> +<div class="header"> +<p> +Next: <a href="Events-In-Python.html#Events-In-Python" accesskey="n" rel="next">Events In Python</a>, Previous: <a href="Writing-an-Xmethod.html#Writing-an-Xmethod" accesskey="p" rel="previous">Writing an Xmethod</a>, Up: <a href="Python-API.html#Python-API" accesskey="u" rel="up">Python API</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p> +</div> + + + +</body> +</html> |