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doc: Improve documentation about MI thread output 

I noticed that the documentation on how the info about threads is output
in MI is duplicated and not up to date.  The duplication is between the
"GDB/MI Thread Information" page and the -thread-info result
description.

I improved the "GDB/MI Thread Information" page a bit and referred to it
in the -thread-info doc.  This way, the -thread-info doc is more precise
(it did not mention the "threads" and "current-thread-id" attributes)
and concise.

gdb/doc/ChangeLog:

	* gdb.texinfo (GDB/MI Thread Information): Add missing
	fields, re-word some things.
	(GDB/MI Thread Commands): Describe fields found in the output of
	-thread-info, remove description of fields in the
	thread output tuple, replace with a cross-reference to "GDB/MI
	Thread Information".
This commit is contained in:
Simon Marchi 2017-04-21 21:50:22 -04:00 committed by Simon Marchi
parent 9be21bb4d4
commit ebe553db6c
2 changed files with 36 additions and 45 deletions
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9
gdb/doc/ChangeLog
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@ -1,3 +1,12 @@
2017-04-21 Simon Marchi <simon.marchi@ericsson.com>
* gdb.texinfo (GDB/MI Thread Information): Add missing
fields, re-word some things.
(GDB/MI Thread Commands): Describe fields found in the output of
-thread-info, remove description of fields in the
thread output tuple, replace with a cross-reference to "GDB/MI
Thread Information".
2017-04-21 Simon Marchi <simon.marchi@ericsson.com> 2017-04-21 Simon Marchi <simon.marchi@ericsson.com>
* gdb.texinfo (GDB/MI Thread Commands): Remove "current" field * gdb.texinfo (GDB/MI Thread Commands): Remove "current" field

72
gdb/doc/gdb.texinfo
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@ -26852,24 +26852,36 @@ corresponds to the frame's code address. This field may be absent.
@subsection @sc{gdb/mi} Thread Information @subsection @sc{gdb/mi} Thread Information
Whenever @value{GDBN} has to report an information about a thread, it Whenever @value{GDBN} has to report an information about a thread, it
uses a tuple with the following fields: uses a tuple with the following fields. The fields are always present unless
stated otherwise.
@table @code @table @code
@item id @item id
The global numeric id assigned to the thread by @value{GDBN}. This field is The global numeric id assigned to the thread by @value{GDBN}.
always present.
@item target-id @item target-id
Target-specific string identifying the thread. This field is always present. The target-specific string identifying the thread.
@item details @item details
Additional information about the thread provided by the target. Additional information about the thread provided by the target.
It is supposed to be human-readable and not interpreted by the It is supposed to be human-readable and not interpreted by the
frontend. This field is optional. frontend. This field is optional.
@item name
The name of the thread. If the user specified a name using the
@code{thread name} command, then this name is given. Otherwise, if
@value{GDBN} can extract the thread name from the target, then that
name is given. If @value{GDBN} cannot find the thread name, then this
field is omitted.
@item state @item state
Either @samp{stopped} or @samp{running}, depending on whether the The execution state of the thread, either @samp{stopped} or @samp{running},
thread is presently running. This field is always present. depending on whether the thread is presently running.
@item frame
The stack frame currently executing in the thread. This field is only present
if the thread is stopped. Its format is documented in
@ref{GDB/MI Frame Information}.
@item core @item core
The value of this field is an integer number of the processor core the The value of this field is an integer number of the processor core the
@ -28084,48 +28096,18 @@ about all threads.
@subsubheading Result @subsubheading Result
The result is a list of threads. The following attributes are The result contains the following attributes:
defined for a given thread:
@table @samp @table @samp
@item id @item threads
The global identifier that @value{GDBN} uses to refer to the thread. A list of threads. The format of the elements of the list is described in
@ref{GDB/MI Thread Information}.
@item target-id @item current-thread-id
The identifier that the target uses to refer to the thread. The global id of the currently selected thread. This field is omitted if there
is no selected thread (for example, when the selected inferior is not running,
@item details and therefore has no threads) or if a @var{thread-id} argument was passed to
Extra information about the thread, in a target-specific format. This the command.
field is optional.
@item name
The name of the thread. If the user specified a name using the
@code{thread name} command, then this name is given. Otherwise, if
@value{GDBN} can extract the thread name from the target, then that
name is given. If @value{GDBN} cannot find the thread name, then this
field is omitted.
@item frame
The stack frame currently executing in the thread.
@item state
The thread's state. The @samp{state} field may have the following
values:
@table @code
@item stopped
The thread is stopped. Frame information is available for stopped
threads.
@item running
The thread is running. There's no frame information for running
threads.
@end table
@item core
If @value{GDBN} can find the CPU core on which this thread is running,
then this field is the core identifier. This field is optional.
@end table @end table