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<a name="GDB_002fMI-Program-Execution"></a>
<div class="header">
<p>
Next: <a href="GDB_002fMI-Stack-Manipulation.html#GDB_002fMI-Stack-Manipulation" accesskey="n" rel="next">GDB/MI Stack Manipulation</a>, Previous: <a href="GDB_002fMI-Ada-Tasking-Commands.html#GDB_002fMI-Ada-Tasking-Commands" accesskey="p" rel="prev">GDB/MI Ada Tasking Commands</a>, Up: <a href="GDB_002fMI.html#GDB_002fMI" accesskey="u" rel="up">GDB/MI</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>
</div>
<hr>
<a name="GDB_002fMI-Program-Execution-1"></a>
<h3 class="section">27.13 <small>GDB/MI</small> Program Execution</h3>
<p>These are the asynchronous commands which generate the out-of-band
record ‘<samp>*stopped</samp>’. Currently <small>GDB</small> only really executes
asynchronously with remote targets and this interaction is mimicked in
other cases.
</p>
<a name="The-_002dexec_002dcontinue-Command"></a>
<h4 class="subheading">The <code>-exec-continue</code> Command</h4>
<a name="index-_002dexec_002dcontinue"></a>
<a name="Synopsis-30"></a>
<h4 class="subsubheading">Synopsis</h4>
<div class="smallexample">
<pre class="smallexample"> -exec-continue [--reverse] [--all|--thread-group N]
</pre></div>
<p>Resumes the execution of the inferior program, which will continue
to execute until it reaches a debugger stop event. If the
‘<samp>--reverse</samp>’ option is specified, execution resumes in reverse until
it reaches a stop event. Stop events may include
</p><ul>
<li> breakpoints or watchpoints
</li><li> signals or exceptions
</li><li> the end of the process (or its beginning under ‘<samp>--reverse</samp>’)
</li><li> the end or beginning of a replay log if one is being used.
</li></ul>
<p>In all-stop mode (see <a href="All_002dStop-Mode.html#All_002dStop-Mode">All-Stop Mode</a>), may resume only one thread, or all threads, depending on the
value of the ‘<samp>scheduler-locking</samp>’ variable. If ‘<samp>--all</samp>’ is
specified, all threads (in all inferiors) will be resumed. The ‘<samp>--all</samp>’ option is
ignored in all-stop mode. If the ‘<samp>--thread-group</samp>’ options is
specified, then all threads in that thread group are resumed.
</p>
<a name="GDB-Command-29"></a>
<h4 class="subsubheading"><small>GDB</small> Command</h4>
<p>The corresponding <small>GDB</small> corresponding is ‘<samp>continue</samp>’.
</p>
<a name="Example-29"></a>
<h4 class="subsubheading">Example</h4>
<div class="smallexample">
<pre class="smallexample">-exec-continue
^running
(gdb)
@Hello world
*stopped,reason="breakpoint-hit",disp="keep",bkptno="2",frame={
func="foo",args=[],file="hello.c",fullname="/home/foo/bar/hello.c",
line="13",arch="i386:x86_64"}
(gdb)
</pre></div>
<a name="The-_002dexec_002dfinish-Command"></a>
<h4 class="subheading">The <code>-exec-finish</code> Command</h4>
<a name="index-_002dexec_002dfinish"></a>
<a name="Synopsis-31"></a>
<h4 class="subsubheading">Synopsis</h4>
<div class="smallexample">
<pre class="smallexample"> -exec-finish [--reverse]
</pre></div>
<p>Resumes the execution of the inferior program until the current
function is exited. Displays the results returned by the function.
If the ‘<samp>--reverse</samp>’ option is specified, resumes the reverse
execution of the inferior program until the point where current
function was called.
</p>
<a name="GDB-Command-30"></a>
<h4 class="subsubheading"><small>GDB</small> Command</h4>
<p>The corresponding <small>GDB</small> command is ‘<samp>finish</samp>’.
</p>
<a name="Example-30"></a>
<h4 class="subsubheading">Example</h4>
<p>Function returning <code>void</code>.
</p>
<div class="smallexample">
<pre class="smallexample">-exec-finish
^running
(gdb)
@hello from foo
*stopped,reason="function-finished",frame={func="main",args=[],
file="hello.c",fullname="/home/foo/bar/hello.c",line="7",arch="i386:x86_64"}
(gdb)
</pre></div>
<p>Function returning other than <code>void</code>. The name of the internal
<small>GDB</small> variable storing the result is printed, together with the
value itself.
</p>
<div class="smallexample">
<pre class="smallexample">-exec-finish
^running
(gdb)
*stopped,reason="function-finished",frame={addr="0x000107b0",func="foo",
args=[{name="a",value="1"],{name="b",value="9"}},
file="recursive2.c",fullname="/home/foo/bar/recursive2.c",line="14",
arch="i386:x86_64"},
gdb-result-var="$1",return-value="0"
(gdb)
</pre></div>
<a name="The-_002dexec_002dinterrupt-Command"></a>
<h4 class="subheading">The <code>-exec-interrupt</code> Command</h4>
<a name="index-_002dexec_002dinterrupt"></a>
<a name="Synopsis-32"></a>
<h4 class="subsubheading">Synopsis</h4>
<div class="smallexample">
<pre class="smallexample"> -exec-interrupt [--all|--thread-group N]
</pre></div>
<p>Interrupts the background execution of the target. Note how the token
associated with the stop message is the one for the execution command
that has been interrupted. The token for the interrupt itself only
appears in the ‘<samp>^done</samp>’ output. If the user is trying to
interrupt a non-running program, an error message will be printed.
</p>
<p>Note that when asynchronous execution is enabled, this command is
asynchronous just like other execution commands. That is, first the
‘<samp>^done</samp>’ response will be printed, and the target stop will be
reported after that using the ‘<samp>*stopped</samp>’ notification.
</p>
<p>In non-stop mode, only the context thread is interrupted by default.
All threads (in all inferiors) will be interrupted if the
‘<samp>--all</samp>’ option is specified. If the ‘<samp>--thread-group</samp>’
option is specified, all threads in that group will be interrupted.
</p>
<a name="GDB-Command-31"></a>
<h4 class="subsubheading"><small>GDB</small> Command</h4>
<p>The corresponding <small>GDB</small> command is ‘<samp>interrupt</samp>’.
</p>
<a name="Example-31"></a>
<h4 class="subsubheading">Example</h4>
<div class="smallexample">
<pre class="smallexample">(gdb)
111-exec-continue
111^running
(gdb)
222-exec-interrupt
222^done
(gdb)
111*stopped,signal-name="SIGINT",signal-meaning="Interrupt",
frame={addr="0x00010140",func="foo",args=[],file="try.c",
fullname="/home/foo/bar/try.c",line="13",arch="i386:x86_64"}
(gdb)
(gdb)
-exec-interrupt
^error,msg="mi_cmd_exec_interrupt: Inferior not executing."
(gdb)
</pre></div>
<a name="The-_002dexec_002djump-Command"></a>
<h4 class="subheading">The <code>-exec-jump</code> Command</h4>
<a name="index-_002dexec_002djump"></a>
<a name="Synopsis-33"></a>
<h4 class="subsubheading">Synopsis</h4>
<div class="smallexample">
<pre class="smallexample"> -exec-jump <var>location</var>
</pre></div>
<p>Resumes execution of the inferior program at the location specified by
parameter. See <a href="Specify-Location.html#Specify-Location">Specify Location</a>, for a description of the
different forms of <var>location</var>.
</p>
<a name="GDB-Command-32"></a>
<h4 class="subsubheading"><small>GDB</small> Command</h4>
<p>The corresponding <small>GDB</small> command is ‘<samp>jump</samp>’.
</p>
<a name="Example-32"></a>
<h4 class="subsubheading">Example</h4>
<div class="smallexample">
<pre class="smallexample">-exec-jump foo.c:10
*running,thread-id="all"
^running
</pre></div>
<a name="The-_002dexec_002dnext-Command"></a>
<h4 class="subheading">The <code>-exec-next</code> Command</h4>
<a name="index-_002dexec_002dnext"></a>
<a name="Synopsis-34"></a>
<h4 class="subsubheading">Synopsis</h4>
<div class="smallexample">
<pre class="smallexample"> -exec-next [--reverse]
</pre></div>
<p>Resumes execution of the inferior program, stopping when the beginning
of the next source line is reached.
</p>
<p>If the ‘<samp>--reverse</samp>’ option is specified, resumes reverse execution
of the inferior program, stopping at the beginning of the previous
source line. If you issue this command on the first line of a
function, it will take you back to the caller of that function, to the
source line where the function was called.
</p>
<a name="GDB-Command-33"></a>
<h4 class="subsubheading"><small>GDB</small> Command</h4>
<p>The corresponding <small>GDB</small> command is ‘<samp>next</samp>’.
</p>
<a name="Example-33"></a>
<h4 class="subsubheading">Example</h4>
<div class="smallexample">
<pre class="smallexample">-exec-next
^running
(gdb)
*stopped,reason="end-stepping-range",line="8",file="hello.c"
(gdb)
</pre></div>
<a name="The-_002dexec_002dnext_002dinstruction-Command"></a>
<h4 class="subheading">The <code>-exec-next-instruction</code> Command</h4>
<a name="index-_002dexec_002dnext_002dinstruction"></a>
<a name="Synopsis-35"></a>
<h4 class="subsubheading">Synopsis</h4>
<div class="smallexample">
<pre class="smallexample"> -exec-next-instruction [--reverse]
</pre></div>
<p>Executes one machine instruction. If the instruction is a function
call, continues until the function returns. If the program stops at an
instruction in the middle of a source line, the address will be
printed as well.
</p>
<p>If the ‘<samp>--reverse</samp>’ option is specified, resumes reverse execution
of the inferior program, stopping at the previous instruction. If the
previously executed instruction was a return from another function,
it will continue to execute in reverse until the call to that function
(from the current stack frame) is reached.
</p>
<a name="GDB-Command-34"></a>
<h4 class="subsubheading"><small>GDB</small> Command</h4>
<p>The corresponding <small>GDB</small> command is ‘<samp>nexti</samp>’.
</p>
<a name="Example-34"></a>
<h4 class="subsubheading">Example</h4>
<div class="smallexample">
<pre class="smallexample">(gdb)
-exec-next-instruction
^running
(gdb)
*stopped,reason="end-stepping-range",
addr="0x000100d4",line="5",file="hello.c"
(gdb)
</pre></div>
<a name="The-_002dexec_002dreturn-Command"></a>
<h4 class="subheading">The <code>-exec-return</code> Command</h4>
<a name="index-_002dexec_002dreturn"></a>
<a name="Synopsis-36"></a>
<h4 class="subsubheading">Synopsis</h4>
<div class="smallexample">
<pre class="smallexample"> -exec-return
</pre></div>
<p>Makes current function return immediately. Doesn’t execute the inferior.
Displays the new current frame.
</p>
<a name="GDB-Command-35"></a>
<h4 class="subsubheading"><small>GDB</small> Command</h4>
<p>The corresponding <small>GDB</small> command is ‘<samp>return</samp>’.
</p>
<a name="Example-35"></a>
<h4 class="subsubheading">Example</h4>
<div class="smallexample">
<pre class="smallexample">(gdb)
200-break-insert callee4
200^done,bkpt={number="1",addr="0x00010734",
file="../../../devo/gdb/testsuite/gdb.mi/basics.c",line="8"}
(gdb)
000-exec-run
000^running
(gdb)
000*stopped,reason="breakpoint-hit",disp="keep",bkptno="1",
frame={func="callee4",args=[],
file="../../../devo/gdb/testsuite/gdb.mi/basics.c",
fullname="/home/foo/bar/devo/gdb/testsuite/gdb.mi/basics.c",line="8",
arch="i386:x86_64"}
(gdb)
205-break-delete
205^done
(gdb)
111-exec-return
111^done,frame={level="0",func="callee3",
args=[{name="strarg",
value="0x11940 \"A string argument.\""}],
file="../../../devo/gdb/testsuite/gdb.mi/basics.c",
fullname="/home/foo/bar/devo/gdb/testsuite/gdb.mi/basics.c",line="18",
arch="i386:x86_64"}
(gdb)
</pre></div>
<a name="The-_002dexec_002drun-Command"></a>
<h4 class="subheading">The <code>-exec-run</code> Command</h4>
<a name="index-_002dexec_002drun"></a>
<a name="Synopsis-37"></a>
<h4 class="subsubheading">Synopsis</h4>
<div class="smallexample">
<pre class="smallexample"> -exec-run [ --all | --thread-group N ] [ --start ]
</pre></div>
<p>Starts execution of the inferior from the beginning. The inferior
executes until either a breakpoint is encountered or the program
exits. In the latter case the output will include an exit code, if
the program has exited exceptionally.
</p>
<p>When neither the ‘<samp>--all</samp>’ nor the ‘<samp>--thread-group</samp>’ option
is specified, the current inferior is started. If the
‘<samp>--thread-group</samp>’ option is specified, it should refer to a thread
group of type ‘<samp>process</samp>’, and that thread group will be started.
If the ‘<samp>--all</samp>’ option is specified, then all inferiors will be started.
</p>
<p>Using the ‘<samp>--start</samp>’ option instructs the debugger to stop
the execution at the start of the inferior’s main subprogram,
following the same behavior as the <code>start</code> command
(see <a href="Starting.html#Starting">Starting</a>).
</p>
<a name="GDB-Command-36"></a>
<h4 class="subsubheading"><small>GDB</small> Command</h4>
<p>The corresponding <small>GDB</small> command is ‘<samp>run</samp>’.
</p>
<a name="Examples-2"></a>
<h4 class="subsubheading">Examples</h4>
<div class="smallexample">
<pre class="smallexample">(gdb)
-break-insert main
^done,bkpt={number="1",addr="0x0001072c",file="recursive2.c",line="4"}
(gdb)
-exec-run
^running
(gdb)
*stopped,reason="breakpoint-hit",disp="keep",bkptno="1",
frame={func="main",args=[],file="recursive2.c",
fullname="/home/foo/bar/recursive2.c",line="4",arch="i386:x86_64"}
(gdb)
</pre></div>
<p>Program exited normally:
</p>
<div class="smallexample">
<pre class="smallexample">(gdb)
-exec-run
^running
(gdb)
x = 55
*stopped,reason="exited-normally"
(gdb)
</pre></div>
<p>Program exited exceptionally:
</p>
<div class="smallexample">
<pre class="smallexample">(gdb)
-exec-run
^running
(gdb)
x = 55
*stopped,reason="exited",exit-code="01"
(gdb)
</pre></div>
<p>Another way the program can terminate is if it receives a signal such as
<code>SIGINT</code>. In this case, <small>GDB/MI</small> displays this:
</p>
<div class="smallexample">
<pre class="smallexample">(gdb)
*stopped,reason="exited-signalled",signal-name="SIGINT",
signal-meaning="Interrupt"
</pre></div>
<a name="The-_002dexec_002dstep-Command"></a>
<h4 class="subheading">The <code>-exec-step</code> Command</h4>
<a name="index-_002dexec_002dstep"></a>
<a name="Synopsis-38"></a>
<h4 class="subsubheading">Synopsis</h4>
<div class="smallexample">
<pre class="smallexample"> -exec-step [--reverse]
</pre></div>
<p>Resumes execution of the inferior program, stopping when the beginning
of the next source line is reached, if the next source line is not a
function call. If it is, stop at the first instruction of the called
function. If the ‘<samp>--reverse</samp>’ option is specified, resumes reverse
execution of the inferior program, stopping at the beginning of the
previously executed source line.
</p>
<a name="GDB-Command-37"></a>
<h4 class="subsubheading"><small>GDB</small> Command</h4>
<p>The corresponding <small>GDB</small> command is ‘<samp>step</samp>’.
</p>
<a name="Example-36"></a>
<h4 class="subsubheading">Example</h4>
<p>Stepping into a function:
</p>
<div class="smallexample">
<pre class="smallexample">-exec-step
^running
(gdb)
*stopped,reason="end-stepping-range",
frame={func="foo",args=[{name="a",value="10"},
{name="b",value="0"}],file="recursive2.c",
fullname="/home/foo/bar/recursive2.c",line="11",arch="i386:x86_64"}
(gdb)
</pre></div>
<p>Regular stepping:
</p>
<div class="smallexample">
<pre class="smallexample">-exec-step
^running
(gdb)
*stopped,reason="end-stepping-range",line="14",file="recursive2.c"
(gdb)
</pre></div>
<a name="The-_002dexec_002dstep_002dinstruction-Command"></a>
<h4 class="subheading">The <code>-exec-step-instruction</code> Command</h4>
<a name="index-_002dexec_002dstep_002dinstruction"></a>
<a name="Synopsis-39"></a>
<h4 class="subsubheading">Synopsis</h4>
<div class="smallexample">
<pre class="smallexample"> -exec-step-instruction [--reverse]
</pre></div>
<p>Resumes the inferior which executes one machine instruction. If the
‘<samp>--reverse</samp>’ option is specified, resumes reverse execution of the
inferior program, stopping at the previously executed instruction.
The output, once <small>GDB</small> has stopped, will vary depending on
whether we have stopped in the middle of a source line or not. In the
former case, the address at which the program stopped will be printed
as well.
</p>
<a name="GDB-Command-38"></a>
<h4 class="subsubheading"><small>GDB</small> Command</h4>
<p>The corresponding <small>GDB</small> command is ‘<samp>stepi</samp>’.
</p>
<a name="Example-37"></a>
<h4 class="subsubheading">Example</h4>
<div class="smallexample">
<pre class="smallexample">(gdb)
-exec-step-instruction
^running
(gdb)
*stopped,reason="end-stepping-range",
frame={func="foo",args=[],file="try.c",
fullname="/home/foo/bar/try.c",line="10",arch="i386:x86_64"}
(gdb)
-exec-step-instruction
^running
(gdb)
*stopped,reason="end-stepping-range",
frame={addr="0x000100f4",func="foo",args=[],file="try.c",
fullname="/home/foo/bar/try.c",line="10",arch="i386:x86_64"}
(gdb)
</pre></div>
<a name="The-_002dexec_002duntil-Command"></a>
<h4 class="subheading">The <code>-exec-until</code> Command</h4>
<a name="index-_002dexec_002duntil"></a>
<a name="Synopsis-40"></a>
<h4 class="subsubheading">Synopsis</h4>
<div class="smallexample">
<pre class="smallexample"> -exec-until [ <var>location</var> ]
</pre></div>
<p>Executes the inferior until the <var>location</var> specified in the
argument is reached. If there is no argument, the inferior executes
until a source line greater than the current one is reached. The
reason for stopping in this case will be ‘<samp>location-reached</samp>’.
</p>
<a name="GDB-Command-39"></a>
<h4 class="subsubheading"><small>GDB</small> Command</h4>
<p>The corresponding <small>GDB</small> command is ‘<samp>until</samp>’.
</p>
<a name="Example-38"></a>
<h4 class="subsubheading">Example</h4>
<div class="smallexample">
<pre class="smallexample">(gdb)
-exec-until recursive2.c:6
^running
(gdb)
x = 55
*stopped,reason="location-reached",frame={func="main",args=[],
file="recursive2.c",fullname="/home/foo/bar/recursive2.c",line="6",
arch="i386:x86_64"}
(gdb)
</pre></div>
<hr>
<div class="header">
<p>
Next: <a href="GDB_002fMI-Stack-Manipulation.html#GDB_002fMI-Stack-Manipulation" accesskey="n" rel="next">GDB/MI Stack Manipulation</a>, Previous: <a href="GDB_002fMI-Ada-Tasking-Commands.html#GDB_002fMI-Ada-Tasking-Commands" accesskey="p" rel="prev">GDB/MI Ada Tasking Commands</a>, Up: <a href="GDB_002fMI.html#GDB_002fMI" accesskey="u" rel="up">GDB/MI</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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