| <html lang="en"> |
| <head> |
| <title>Architecture-Specific Protocol Details - Debugging with GDB</title> |
| <meta http-equiv="Content-Type" content="text/html"> |
| <meta name="description" content="Debugging with GDB"> |
| <meta name="generator" content="makeinfo 4.13"> |
| <link title="Top" rel="start" href="index.html#Top"> |
| <link rel="up" href="Remote-Protocol.html#Remote-Protocol" title="Remote Protocol"> |
| <link rel="prev" href="General-Query-Packets.html#General-Query-Packets" title="General Query Packets"> |
| <link rel="next" href="Tracepoint-Packets.html#Tracepoint-Packets" title="Tracepoint Packets"> |
| <link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> |
| <!-- |
| Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, |
| 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 |
| 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.''--> |
| <meta http-equiv="Content-Style-Type" content="text/css"> |
| <style type="text/css"><!-- |
| pre.display { font-family:inherit } |
| pre.format { font-family:inherit } |
| pre.smalldisplay { font-family:inherit; font-size:smaller } |
| pre.smallformat { font-family:inherit; font-size:smaller } |
| pre.smallexample { font-size:smaller } |
| pre.smalllisp { font-size:smaller } |
| span.sc { font-variant:small-caps } |
| span.roman { font-family:serif; font-weight:normal; } |
| span.sansserif { font-family:sans-serif; font-weight:normal; } |
| --></style> |
| <link rel="stylesheet" type="text/css" href="../cs.css"> |
| </head> |
| <body> |
| <div class="node"> |
| <a name="Architecture-Specific-Protocol-Details"></a> |
| <a name="Architecture_002dSpecific-Protocol-Details"></a> |
| <p> |
| Next: <a rel="next" accesskey="n" href="Tracepoint-Packets.html#Tracepoint-Packets">Tracepoint Packets</a>, |
| Previous: <a rel="previous" accesskey="p" href="General-Query-Packets.html#General-Query-Packets">General Query Packets</a>, |
| Up: <a rel="up" accesskey="u" href="Remote-Protocol.html#Remote-Protocol">Remote Protocol</a> |
| <hr> |
| </div> |
| |
| <h3 class="section">D.6 Architecture-Specific Protocol Details</h3> |
| |
| <p>This section describes how the remote protocol is applied to specific |
| target architectures. Also see <a href="Standard-Target-Features.html#Standard-Target-Features">Standard Target Features</a>, for |
| details of XML target descriptions for each architecture. |
| |
| <h4 class="subsection">D.6.1 ARM</h4> |
| |
| <h5 class="subsubsection">D.6.1.1 Breakpoint Kinds</h5> |
| |
| <p>These breakpoint kinds are defined for the ‘<samp><span class="samp">Z0</span></samp>’ and ‘<samp><span class="samp">Z1</span></samp>’ packets. |
| |
| <dl> |
| <dt><span class="roman">2</span><dd>16-bit Thumb mode breakpoint. |
| |
| <br><dt><span class="roman">3</span><dd>32-bit Thumb mode (Thumb-2) breakpoint. |
| |
| <br><dt><span class="roman">4</span><dd>32-bit ARM mode breakpoint. |
| |
| </dl> |
| |
| <h4 class="subsection">D.6.2 MIPS</h4> |
| |
| <h5 class="subsubsection">D.6.2.1 Register Packet Format</h5> |
| |
| <p>The following <code>g</code>/<code>G</code> packets have previously been defined. |
| In the below, some thirty-two bit registers are transferred as |
| sixty-four bits. Those registers should be zero/sign extended (which?) |
| to fill the space allocated. Register bytes are transferred in target |
| byte order. The two nibbles within a register byte are transferred |
| most-significant - least-significant. |
| |
| <dl> |
| <dt><span class="roman">MIPS32</span><dd> |
| All registers are transferred as thirty-two bit quantities in the order: |
| 32 general-purpose; sr; lo; hi; bad; cause; pc; 32 floating-point |
| registers; fsr; fir; fp. |
| |
| <br><dt><span class="roman">MIPS64</span><dd> |
| All registers are transferred as sixty-four bit quantities (including |
| thirty-two bit registers such as <code>sr</code>). The ordering is the same |
| as <code>MIPS32</code>. |
| |
| </dl> |
| |
| <h5 class="subsubsection">D.6.2.2 Breakpoint Kinds</h5> |
| |
| <p>These breakpoint kinds are defined for the ‘<samp><span class="samp">Z0</span></samp>’ and ‘<samp><span class="samp">Z1</span></samp>’ packets. |
| |
| <dl> |
| <dt><span class="roman">2</span><dd>16-bit MIPS16 mode breakpoint. |
| |
| <br><dt><span class="roman">3</span><dd>16-bit microMIPS mode breakpoint. |
| |
| <br><dt><span class="roman">4</span><dd>32-bit standard MIPS mode breakpoint. |
| |
| <br><dt><span class="roman">5</span><dd>32-bit microMIPS mode breakpoint. |
| |
| </dl> |
| |
| </body></html> |
| |
