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-rw-r--r--tools/gdb.html70
1 files changed, 66 insertions, 4 deletions
diff --git a/tools/gdb.html b/tools/gdb.html
index a5c3459..bd4aae5 100644
--- a/tools/gdb.html
+++ b/tools/gdb.html
@@ -179,6 +179,8 @@
-x <file> execute script <file> before prompt
-ex <cmd> execute command <cmd> before prompt
--tty <tty> set I/O tty for debugee
+ --batch run in batch mode, exit after processing options (eg used
+ for scripting)
</code></pre>
<h1 id="interactive-usage"><a class="header" href="#interactive-usage">Interactive usage</a></h1>
<h2 id="misc"><a class="header" href="#misc">Misc</a></h2>
@@ -244,12 +246,37 @@
Create a watchpoint for &lt;expr&gt;, will break if &lt;expr&gt; is written to.
Watchpoints respect scope of variables, -l can be used to watch the
memory location instead.
+
rwatch ...
Sets a read watchpoint, will break if &lt;expr&gt; is read from.
+
awatch ...
Sets an access watchpoint, will break if &lt;expr&gt; is written to or read
from.
</code></pre>
+<h2 id="catchpoints"><a class="header" href="#catchpoints">Catchpoints</a></h2>
+<pre><code class="language-markdown"> catch load [&lt;regex&gt;]
+ Stop when shared libraries are loaded, optionally specify a &lt;regex&gt;
+ to stop only on matches.
+ catch unload [&lt;regex&gt;]
+ Stop when shared libraries are unloaded, optionally specify a &lt;regex&gt;
+ to stop only on matches.
+
+ catch throw
+ Stop when an exception is thrown.
+ catch rethrow
+ Stop when an exception is rethrown.
+ catch catch
+ Stop when an exception is caught.
+
+ catch fork
+ Stop at calls to fork (also stops at clones, as some systems
+ implement fork via clone).
+
+ catch syscall [&lt;syscall&gt; &lt;syscall&gt; ..]
+ Stop at syscall. If no argument is given, stop at all syscalls.
+ Optionally give a list of syscalls to stop at.
+</code></pre>
<h2 id="inspection"><a class="header" href="#inspection">Inspection</a></h2>
<pre><code class="language-markdown"> info functions [&lt;regex&gt;]
List functions matching &lt;regex&gt;. List all functions if no &lt;regex&gt;
@@ -258,6 +285,9 @@
info variables [&lt;regex&gt;]
List variables matching &lt;regex&gt;. List all variables if no &lt;regex&gt;
provided.
+
+ info register [&lt;reg&gt; &lt;reg&gt; ..]
+ Dump content of all registers or only the specified &lt;reg&gt;ister.
</code></pre>
<h2 id="signal-handling"><a class="header" href="#signal-handling">Signal handling</a></h2>
<pre><code class="language-markdown"> info handle [&lt;signal&gt;]
@@ -274,6 +304,33 @@
catch signal &lt;signal&gt;
Create a catchpoint for &lt;signal&gt;.
</code></pre>
+<h2 id="multi-threading"><a class="header" href="#multi-threading">Multi-threading</a></h2>
+<pre><code class="language-markdown">info thread
+ List all threads.
+
+thread apply &lt;id&gt; [&lt;id&gt;] &lt;command&gt;
+ Run command on all threads listed by &lt;id&gt; (space separated list).
+ When 'all' is specified as &lt;id&gt; the &lt;command&gt; is run on all threads.
+
+thread name &lt;name&gt;
+ The &lt;name&gt; for the current thread.
+</code></pre>
+<h2 id="multi-process"><a class="header" href="#multi-process">Multi-process</a></h2>
+<pre><code class="language-markdown"> set follow-fork-mode &lt;child | parent&gt;
+ Specify which process to follow when debuggee makes a fork(2)
+ syscall.
+
+ set detach-on-frok &lt;on | off&gt;
+ Turn on/off detaching from new child processes (on by default).
+ Turning this off allows to debug multiple processes (inferiors) with
+ one gdb session.
+
+ info inferiors
+ List all processes gdb debugs.
+
+ inferior &lt;id&gt;
+ Switch to inferior with &lt;id&gt;.
+</code></pre>
<h2 id="source-file-locations"><a class="header" href="#source-file-locations">Source file locations</a></h2>
<pre><code class="language-markdown"> dir &lt;path&gt;
Add &lt;path&gt; to the beginning of the searh path for source files.
@@ -291,10 +348,6 @@
<pre><code class="language-markdown"> set disassembly-flavor &lt;intel | att&gt;
Set the disassembly style &quot;flavor&quot;.
- set follow-fork-mode &lt;child | parent&gt;
- Specify which process to follow when debuggee makes a fork(2)
- syscall.
-
set pagination &lt;on | off&gt;
Turn on/off gdb's pagination.
@@ -306,6 +359,9 @@
set print pretty &lt;on | off&gt;
Turn on/off pertty printing of structures.
+ set style enabled &lt;on | off&gt;
+ Turn on/off styling (eg colored output).
+
set logging &lt;on | off&gt;
Enable output logging to file (default gdb.txt).
@@ -316,6 +372,12 @@
on: only log to file.
off: log to file and tty.
</code></pre>
+<h1 id="text-user-interface-tui"><a class="header" href="#text-user-interface-tui">Text user interface (TUI)</a></h1>
+<pre><code class="language-markdown"> C-x a Toggle UI.
+ C-l Redraw UI (curses UI can be messed up after the debugee prints to
+ stdout/stderr).
+ C-x o Change focus.
+</code></pre>
<h1 id="user-commands-macros"><a class="header" href="#user-commands-macros">User commands (macros)</a></h1>
<p>Gdb allows to create &amp; document user commands as follows:</p>
<pre><code class="language-markdown"> define &lt;cmd&gt;