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-<head>
-<title>mach-cmd(3) - Plan 9 from User Space</title>
-<meta content="text/html; charset=utf-8" http-equiv=Content-Type>
-</head>
-<body bgcolor=#ffffff>
-<table border=0 cellpadding=0 cellspacing=0 width=100%>
-<tr height=10><td>
-<tr><td width=20><td>
-<tr><td width=20><td><b>MACH-CMD(3)</b><td align=right><b>MACH-CMD(3)</b>
-<tr><td width=20><td colspan=2>
- <br>
-<p><font size=+1><b>NAME </b></font><br>
-
-<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>
-
- attachargs, attachcore, attachdynamic, attachproc, proctextfile
- &ndash; debugging processes and core files<br>
-
-</table>
-<p><font size=+1><b>SYNOPSIS </b></font><br>
-
-<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>
-
- <tt><font size=+1>#include &lt;u.h&gt;<br>
- #include &lt;libc.h&gt;<br>
- #include &lt;mach.h&gt;
- <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
- </font></tt>
- <tt><font size=+1>int &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;attachcore(Fhdr *hdr)
- <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
- </font></tt>
- <tt><font size=+1>int &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;attachproc(int pid)
- <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
- </font></tt>
- <tt><font size=+1>int &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;attachdynamic(void)
- <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
- </font></tt>
- <tt><font size=+1>char* &nbsp;&nbsp;&nbsp;proctextfile(int pid)
- <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
- </font></tt>
- <tt><font size=+1>int &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;attachargs(int argc, char **argv, int omode)
- <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
- </font></tt>
- <tt><font size=+1>extern Fhdr* symhdr;<br>
- </font></tt>extern &nbsp;&nbsp;&nbsp;&nbsp;char* &nbsp;&nbsp;&nbsp;symfil;<br>
- extern &nbsp;&nbsp;&nbsp;&nbsp;Map* &nbsp;&nbsp;&nbsp;symmap;<br>
- extern &nbsp;&nbsp;&nbsp;&nbsp;Fhdr* &nbsp;&nbsp;&nbsp;fhdrlist;<br>
- extern &nbsp;&nbsp;&nbsp;&nbsp;Fhdr* &nbsp;&nbsp;&nbsp;corhdr;<br>
- extern &nbsp;&nbsp;&nbsp;&nbsp;char* &nbsp;&nbsp;&nbsp;corfil;<br>
- extern &nbsp;&nbsp;&nbsp;&nbsp;Map* &nbsp;&nbsp;&nbsp;cormap;<br>
- extern &nbsp;&nbsp;&nbsp;&nbsp;int &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;corpid;<br>
- extern &nbsp;&nbsp;&nbsp;&nbsp;Regs* &nbsp;&nbsp;&nbsp;correg;<br>
-
-</table>
-<p><font size=+1><b>DESCRIPTION </b></font><br>
-
-<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>
-
- These routines provide access to the objects a typical debugger
- manipulates: an executable binary, some number of shared libraries,
- a memory image in the form of a core dump or active process, and
- a register set.
- <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
-
- The maintained state is:<br>
- <i>symhdr<br>
- </i>
- <table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>
-
- The file header for the main binary.<br>
-
- </table>
- <i>symfil</i>The file name of the main binary.<br>
- <i>symmap<br>
- </i>
- <table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>
-
- The memory map of the main binary.<br>
-
- </table>
- <i>fhdrlist<br>
- </i>
- <table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>
-
- A linked list (via the <tt><font size=+1>Fhdr.next</font></tt> fields) of all currently open
- headers (see <i>symopen</i> in <a href="../man3/mach-symbol.html"><i>mach-symbol</i>(3)</a>). When dynamically linked
- objects have been attached, they are present in this linked list,
- and therefore included in searches by <i>indexsym</i>, <i>lookupsym</i>, and
- <i>findsym</i> (see <a href="../man3/mach-symbol.html"><i>mach-symbol</i>(3)</a>).
-
- </table>
- <i>corhdr</i>The file header for the core dump, if any.<br>
- <i>corfil</i>The file name of the core dump, if any.<br>
- <i>cormap<br>
- </i>
- <table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>
-
- The memory map of the core dump or attached process.<br>
-
- </table>
- <i>corpid</i>The process id of the attached process, if any.<br>
- <i>correg</i>The register set of the core dump or attached process. If
- these fields are not valid, they are zeroed.
- <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
-
- <i>Attachcore</i> and <i>attachproc</i> attach to an opened core file or an
- executing process. They set <i>corhdr</i>, <i>corfil</i>, <i>cormap</i>, <i>corpid</i>, and
- <i>correg</i>.
- <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
-
- <i>Proctextfile</i> returns the name of the main binary for the process
- with id <i>pid</i>.
- <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
-
- <i>Attachdynamic</i> requires that the memory image already be attached.
- It reads the dynamic linker&#8217;s internal run-time data structures
- and then opens all the dynamic objects that are currently loaded.
-
- <table border=0 cellpadding=0 cellspacing=0><tr height=5><td></table>
-
- <i>Attachargs</i> uses all of these functions while parsing an argument
- vector as would be passed to a debugger like <a href="../man1/db.html"><i>db</i>(1)</a> or <a href="../man1/acid.html"><i>acid</i>(1)</a>.
- It expects a list of executable files, core dump files, or process
- ids, given in any order. If extra arguments are given (for example,
- more than one executable, or both a core dump and a
- process id), they are ignored and diagnostics are printed to standard
- error. If arguments are missing (for example, the process id is
- given without an executable file), <i>attachargs</i> fills them in as
- best it can.<br>
-
-</table>
-<p><font size=+1><b>SOURCE </b></font><br>
-
-<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>
-
- <tt><font size=+1>/usr/local/plan9/src/libmach<br>
- </font></tt>
-</table>
-<p><font size=+1><b>SEE ALSO </b></font><br>
-
-<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>
-
- <a href="../man3/mach.html"><i>mach</i>(3)</a>, <a href="../man3/mach-file.html"><i>mach-file</i>(3)</a>, <a href="../man3/mach-map.html"><i>mach-map</i>(3)</a><br>
-
-</table>
-<p><font size=+1><b>BUGS </b></font><br>
-
-<table border=0 cellpadding=0 cellspacing=0><tr height=2><td><tr><td width=20><td>
-
- The interface needs to be changed to support multiple threads,
- each with its own register set.<br>
-
-</table>
-
-<td width=20>
-<tr height=20><td>
-</table>
-<!-- TRAILER -->
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