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| <title>Debugging with GDB: Frame Info</title> |
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| <a name="Frame-Info"></a> |
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| Previous: <a href="Selection.html#Selection" accesskey="p" rel="prev">Selection</a>, Up: <a href="Stack.html#Stack" accesskey="u" rel="up">Stack</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> |
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| <a name="Information-About-a-Frame"></a> |
| <h3 class="section">8.5 Information About a Frame</h3> |
| |
| <p>There are several other commands to print information about the selected |
| stack frame. |
| </p> |
| <dl compact="compact"> |
| <dt><code>frame</code></dt> |
| <dt><code>f</code></dt> |
| <dd><p>When used without any argument, this command does not change which |
| frame is selected, but prints a brief description of the currently |
| selected stack frame. It can be abbreviated <code>f</code>. With an |
| argument, this command is used to select a stack frame. |
| See <a href="Selection.html#Selection">Selecting a Frame</a>. |
| </p> |
| <a name="index-info-frame"></a> |
| <a name="index-info-f-_0028info-frame_0029"></a> |
| </dd> |
| <dt><code>info frame</code></dt> |
| <dt><code>info f</code></dt> |
| <dd><p>This command prints a verbose description of the selected stack frame, |
| including: |
| </p> |
| <ul> |
| <li> the address of the frame |
| </li><li> the address of the next frame down (called by this frame) |
| </li><li> the address of the next frame up (caller of this frame) |
| </li><li> the language in which the source code corresponding to this frame is written |
| </li><li> the address of the frame’s arguments |
| </li><li> the address of the frame’s local variables |
| </li><li> the program counter saved in it (the address of execution in the caller frame) |
| </li><li> which registers were saved in the frame |
| </li></ul> |
| |
| <p>The verbose description is useful when |
| something has gone wrong that has made the stack format fail to fit |
| the usual conventions. |
| </p> |
| </dd> |
| <dt><code>info frame <var>addr</var></code></dt> |
| <dt><code>info f <var>addr</var></code></dt> |
| <dd><p>Print a verbose description of the frame at address <var>addr</var>, without |
| selecting that frame. The selected frame remains unchanged by this |
| command. This requires the same kind of address (more than one for some |
| architectures) that you specify in the <code>frame</code> command. |
| See <a href="Selection.html#Selection">Selecting a Frame</a>. |
| </p> |
| <a name="index-info-args"></a> |
| </dd> |
| <dt><code>info args</code></dt> |
| <dd><p>Print the arguments of the selected frame, each on a separate line. |
| </p> |
| </dd> |
| <dt><code>info locals</code></dt> |
| <dd><a name="index-info-locals"></a> |
| <p>Print the local variables of the selected frame, each on a separate |
| line. These are all variables (declared either static or automatic) |
| accessible at the point of execution of the selected frame. |
| </p> |
| </dd> |
| </dl> |
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| Previous: <a href="Selection.html#Selection" accesskey="p" rel="prev">Selection</a>, Up: <a href="Stack.html#Stack" accesskey="u" rel="up">Stack</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> |
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