a14e9154a5f24a4f13cb5185922f854433c863a7
[lldb.git] / lldb / www / status.html
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6 <title>LLDB Status</title>
7 </head>
8
9 <body>
10     <div class="www_title">
11       The <strong>LLDB</strong> Debugger
12     </div>
13     
14 <div id="container">
15     <div id="content">
16         <!--#include virtual="sidebar.incl"-->
17         
18         <div id="middle">
19             <div class="post">
20                 <h1 class ="postheader">Mac OS X Status</h1>
21                 <div class="postcontent">
22
23                    <p>LLDB has matured a lot in the last year and can be used for
24                    C, C++ and Objective C development for x86_64, i386 and ARM debugging.
25                    The entire public API is exposed though a framework on Mac OS X which
26                    is used by Xcode, the lldb command line tool, and can also be used by
27                    Python. The entire public API is exposed through script bridging which
28                    allows LLDB to use an embedded Python script interpreter, as well as
29                    having a Python module named "lldb" which can be used from Python
30                    on the command line. This allows debug sessions to be scripted. It also
31                    allows powerful debugging actions to be created and attached to a variety
32                    of debugging workflows.</p>
33                 </div>
34                 <h1 class ="postheader">Linux Status</h1>
35                 <div class="postcontent">
36                     <p> LLDB is improving on Linux. While the debugserver has not been ported
37                     (to enable remote debugging) Linux is nearing feature completeness with Darwin
38                     to debug x86_64 programs, and is partially working with i386 programs.
39                     ARM architectures on Linux are untested.
40                     For more details, see the Features by OS section below.
41                 </div>
42                 <h1 class ="postheader">FreeBSD Status</h1>
43                 <div class="postcontent">
44                     <p> LLDB on FreeBSD lags behind the Linux implementation but is improving rapidly.
45                     For more details, see the Features by OS section below.
46                 </div>
47                 <h1 class ="postheader">Windows Status</h1>
48                 <div class="postcontent">
49                     <p> LLDB on Windows is still under development, but already useful for i386
50                     programs (x86_64 untested) built with DWARF debug information, including postmortem
51                     analysis of minidumps.
52                     For more details, see the Features by OS section below.
53                 </div>
54                 <h1 class ="postheader">Features by OS</h1>
55                 <div class="postcontent">
56                     <p> The table below shows a summary of the features that are available
57                     on several platforms. In addition to Linux and Mac OS X, LLDB is also
58                     known to work on FreeBSD. NetBSD support is under development.
59                         <table border="1">
60                             <tr>
61                                 <th>Feature</th>
62                                 <th>FreeBSD<br>(x86_64)</th>
63                                 <th>Linux<br>(x86_64 and PPC64le)</th>
64                                 <th>Mac OS X (i386/x86_64 and ARM/Thumb)</th>
65                                 <th>Windows (i386)</th>
66                             </tr>
67                             <tr>
68                                 <td>Backtracing</td>
69                                 <td>OK</td>
70                                 <td>OK</td>
71                                 <td>OK</td>
72                                 <td>OK</td>
73                             </tr>
74                             <tr>
75                                 <td>Breakpoints
76                                     <ul>
77                                         <li>source-line
78                                         <li>symbolic
79                                         <li>C++ mangled names
80                                         <li>module scoping
81                                     </ul>
82                                 </td>
83                                 <td>OK</td>
84                                 <td>OK</td>
85                                 <td>OK</td>
86                                 <td>OK</td>
87                             </tr>
88                             <tr>
89                                 <td>C++11:
90                                 <ul>
91                                     <li>function access
92                                     <li>template support
93                                     <li>dynamic types
94                                 </ul></td>
95                                 <td>OK</td>
96                                 <td>OK</td>
97                                 <td>OK</td>
98                                 <td>Unknown</td>
99                             </tr>
100                             <tr>
101                                 <td>Commandline lldb tool</td>
102                                 <td>OK</td>
103                                 <td>OK</td>
104                                 <td>OK</td>
105                                 <td>OK</td>
106                             </tr>
107                             <tr>
108                                 <td>Core file debugging</td>
109                                 <td>OK (ELF)</td>
110                                 <td>OK (ELF)</td>
111                                 <td>OK (MachO)</td>
112                                 <td>OK (Minidump)</td>
113                             </tr>
114                             <tr>
115                                 <td>Debugserver (remote debugging)</td>
116                                 <td>Not ported</td>
117                                 <td>Not ported</td>
118                                 <td>OK</td>
119                                 <td>Not ported</td>
120                             </tr>
121                             <tr>
122                                 <td>Disassembly</td>
123                                 <td>OK</td>
124                                 <td>OK</td>
125                                 <td>OK</td>
126                                 <td>OK</td>
127                             </tr>
128                             <tr>
129                                 <td>Expression evaluation</td>
130                                 <td>Unknown</td>
131                                 <td>Works with some bugs</td>
132                                 <td>OK</td>
133                                 <td>Works with some bugs</td>
134                             </tr>
135                             <tr>
136                                 <td>JIT debugging</td>
137                                 <td>Unknown</td>
138                                 <td>Symbolic debugging only</td>
139                                 <td>Untested</td>
140                                 <td>No</td>
141                             </tr>
142                             <tr>
143                                 <td>Objective-C 2.0:
144                                     <ul>
145                                         <li>printing properties
146                                         <li>synthetic properties
147                                         <li>expressions
148                                         <li>KVO
149                                         <li>dynamic types
150                                         <li>dot syntax
151                                         <li>runtime data
152                                         <li>stepping into/over
153                                         <li>printing the description of an object ("po")
154                                 </ul></td>
155                                 <td>Unknown</td>
156                                 <td>Not applicable</td>
157                                 <td>OK</td>
158                                 <td>Not applicable</td>
159                             </tr>
160                             <tr>
161                                 <td>Process control
162                                     <ul>
163                                         <li>attach
164                                         <li>continue
165                                         <li>exec, execve...
166                                         <li>fork
167                                         <li>launch
168                                         <li>status
169                                     </ul>
170                                 </td>
171                                 <td>Works, with some bugs</td>
172                                 <td>OK (except exec*)</td>
173                                 <td>OK</td>
174                                 <td>OK</td>
175                             </tr>
176                             <tr>
177                                 <td>Public Python API</td>
178                                 <td>OK (Python 2.7)</td>
179                                 <td>OK (Python 2.7)</td>
180                                 <td>OK (Python 2.7)</td>
181                                 <td>OK (Python 3.5)</td>
182                             </tr>
183                             <tr>
184                                 <td>Registers (x86_64 and i386)
185                                     <ul>
186                                         <li>general purpose
187                                         <li>floating point
188                                         <li>exception state
189                                         <li>SSE
190                                         <li>AVX
191                                     </ul>
192                                 </td>
193                                 <td>GP and FP OK</td>
194                                 <td>OK (except for exception state registers)</td>
195                                 <td>OK</td>
196                                 <td>OK (except for AVX support)</td>
197                             </tr>
198                             <tr>
199                                 <td>Symbol reading and object file introspection</td>
200                                 <td>OK</td>
201                                 <td>OK</td>
202                                 <td>OK</td>
203                                 <td>OK (no PDB yet)</td>
204                             </tr>
205                             <tr>
206                                 <td>Thread inspection and stepping</td>
207                                 <td>OK</td>
208                                 <td>OK</td>
209                                 <td>OK</td>
210                                 <td>OK</td>
211                             </tr>
212                             <tr>
213                                 <td>Watchpoints</td>
214                                 <td>OK</td>
215                                 <td>OK</td>
216                                 <td>OK</td>
217                                 <td>Not ported yet</td>
218                             </tr>
219                         </table>
220                 </div>
221                 <div class="postfooter"></div>
222             </div>
223         </div>
224     </div>
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