<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
|
<html>
|
<!-- Copyright (C) 1988-2017 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 5.2, http://www.gnu.org/software/texinfo/ -->
|
<head>
|
<title>Debugging with GDB: SVR4 Process Information</title>
|
|
<meta name="description" content="Debugging with GDB: SVR4 Process Information">
|
<meta name="keywords" content="Debugging with GDB: SVR4 Process Information">
|
<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="Native.html#Native" rel="up" title="Native">
|
<link href="DJGPP-Native.html#DJGPP-Native" rel="next" title="DJGPP Native">
|
<link href="BSD-libkvm-Interface.html#BSD-libkvm-Interface" rel="prev" title="BSD libkvm Interface">
|
<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="SVR4-Process-Information"></a>
|
<div class="header">
|
<p>
|
Next: <a href="DJGPP-Native.html#DJGPP-Native" accesskey="n" rel="next">DJGPP Native</a>, Previous: <a href="BSD-libkvm-Interface.html#BSD-libkvm-Interface" accesskey="p" rel="prev">BSD libkvm Interface</a>, Up: <a href="Native.html#Native" accesskey="u" rel="up">Native</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="SVR4-Process-Information-1"></a>
|
<h4 class="subsection">21.1.2 SVR4 Process Information</h4>
|
<a name="index-_002fproc"></a>
|
<a name="index-examine-process-image"></a>
|
<a name="index-process-info-via-_002fproc"></a>
|
|
<p>Many versions of SVR4 and compatible systems provide a facility called
|
‘<samp>/proc</samp>’ that can be used to examine the image of a running
|
process using file-system subroutines.
|
</p>
|
<p>If <small>GDB</small> is configured for an operating system with this
|
facility, the command <code>info proc</code> is available to report
|
information about the process running your program, or about any
|
process running on your system. This includes, as of this writing,
|
<small>GNU</small>/Linux and Solaris, for example.
|
</p>
|
<p>This command may also work on core files that were created on a system
|
that has the ‘<samp>/proc</samp>’ facility.
|
</p>
|
<dl compact="compact">
|
<dd><a name="index-info-proc"></a>
|
<a name="index-process-ID"></a>
|
</dd>
|
<dt><code>info proc</code></dt>
|
<dt><code>info proc <var>process-id</var></code></dt>
|
<dd><p>Summarize available information about any running process. If a
|
process ID is specified by <var>process-id</var>, display information about
|
that process; otherwise display information about the program being
|
debugged. The summary includes the debugged process ID, the command
|
line used to invoke it, its current working directory, and its
|
executable file’s absolute file name.
|
</p>
|
<p>On some systems, <var>process-id</var> can be of the form
|
‘<samp>[<var>pid</var>]/<var>tid</var></samp>’ which specifies a certain thread ID
|
within a process. If the optional <var>pid</var> part is missing, it means
|
a thread from the process being debugged (the leading ‘<samp>/</samp>’ still
|
needs to be present, or else <small>GDB</small> will interpret the number as
|
a process ID rather than a thread ID).
|
</p>
|
</dd>
|
<dt><code>info proc cmdline</code></dt>
|
<dd><a name="index-info-proc-cmdline"></a>
|
<p>Show the original command line of the process. This command is
|
specific to <small>GNU</small>/Linux.
|
</p>
|
</dd>
|
<dt><code>info proc cwd</code></dt>
|
<dd><a name="index-info-proc-cwd"></a>
|
<p>Show the current working directory of the process. This command is
|
specific to <small>GNU</small>/Linux.
|
</p>
|
</dd>
|
<dt><code>info proc exe</code></dt>
|
<dd><a name="index-info-proc-exe"></a>
|
<p>Show the name of executable of the process. This command is specific
|
to <small>GNU</small>/Linux.
|
</p>
|
</dd>
|
<dt><code>info proc mappings</code></dt>
|
<dd><a name="index-memory-address-space-mappings"></a>
|
<p>Report the memory address space ranges accessible in the program, with
|
information on whether the process has read, write, or execute access
|
rights to each range. On <small>GNU</small>/Linux systems, each memory range
|
includes the object file which is mapped to that range, instead of the
|
memory access rights to that range.
|
</p>
|
</dd>
|
<dt><code>info proc stat</code></dt>
|
<dt><code>info proc status</code></dt>
|
<dd><a name="index-process-detailed-status-information"></a>
|
<p>These subcommands are specific to <small>GNU</small>/Linux systems. They show
|
the process-related information, including the user ID and group ID;
|
how many threads are there in the process; its virtual memory usage;
|
the signals that are pending, blocked, and ignored; its TTY; its
|
consumption of system and user time; its stack size; its ‘<samp>nice</samp>’
|
value; etc. For more information, see the ‘<samp>proc</samp>’ man page
|
(type <kbd>man 5 proc</kbd> from your shell prompt).
|
</p>
|
</dd>
|
<dt><code>info proc all</code></dt>
|
<dd><p>Show all the information about the process described under all of the
|
above <code>info proc</code> subcommands.
|
</p>
|
|
</dd>
|
<dt><code>set procfs-trace</code></dt>
|
<dd><a name="index-set-procfs_002dtrace"></a>
|
<a name="index-procfs-API-calls"></a>
|
<p>This command enables and disables tracing of <code>procfs</code> API calls.
|
</p>
|
</dd>
|
<dt><code>show procfs-trace</code></dt>
|
<dd><a name="index-show-procfs_002dtrace"></a>
|
<p>Show the current state of <code>procfs</code> API call tracing.
|
</p>
|
</dd>
|
<dt><code>set procfs-file <var>file</var></code></dt>
|
<dd><a name="index-set-procfs_002dfile"></a>
|
<p>Tell <small>GDB</small> to write <code>procfs</code> API trace to the named
|
<var>file</var>. <small>GDB</small> appends the trace info to the previous
|
contents of the file. The default is to display the trace on the
|
standard output.
|
</p>
|
</dd>
|
<dt><code>show procfs-file</code></dt>
|
<dd><a name="index-show-procfs_002dfile"></a>
|
<p>Show the file to which <code>procfs</code> API trace is written.
|
</p>
|
</dd>
|
<dt><code>proc-trace-entry</code></dt>
|
<dt><code>proc-trace-exit</code></dt>
|
<dt><code>proc-untrace-entry</code></dt>
|
<dt><code>proc-untrace-exit</code></dt>
|
<dd><a name="index-proc_002dtrace_002dentry"></a>
|
<a name="index-proc_002dtrace_002dexit"></a>
|
<a name="index-proc_002duntrace_002dentry"></a>
|
<a name="index-proc_002duntrace_002dexit"></a>
|
<p>These commands enable and disable tracing of entries into and exits
|
from the <code>syscall</code> interface.
|
</p>
|
</dd>
|
<dt><code>info pidlist</code></dt>
|
<dd><a name="index-info-pidlist"></a>
|
<a name="index-process-list_002c-QNX-Neutrino"></a>
|
<p>For QNX Neutrino only, this command displays the list of all the
|
processes and all the threads within each process.
|
</p>
|
</dd>
|
<dt><code>info meminfo</code></dt>
|
<dd><a name="index-info-meminfo"></a>
|
<a name="index-mapinfo-list_002c-QNX-Neutrino"></a>
|
<p>For QNX Neutrino only, this command displays the list of all mapinfos.
|
</p></dd>
|
</dl>
|
|
<hr>
|
<div class="header">
|
<p>
|
Next: <a href="DJGPP-Native.html#DJGPP-Native" accesskey="n" rel="next">DJGPP Native</a>, Previous: <a href="BSD-libkvm-Interface.html#BSD-libkvm-Interface" accesskey="p" rel="prev">BSD libkvm Interface</a>, Up: <a href="Native.html#Native" accesskey="u" rel="up">Native</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>
|
