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UNWIND_NULL_ID is no longer used anywhere. Update comments. 

Unfortunately, UNWIND_NULL_ID is exported to Python as
gdb.FRAME_UNWIND_NULL_ID so we can't really eliminate it.

(I'd assume scripts just check the result of Frame.unwind_stop_reason,
and compare it to gdb.FRAME_UNWIND_NO_REASON.  That at most, they'll
pass the result of Frame.unwind_stop_reason to
gdb.frame_stop_reason_string.  I'd prefer to just get rid of it, but
because we make an API promise, we get to keep this around for
compatibility, in case a script does refer to gdb.FRAME_UNWIND_NULL_ID
directly.)

gdb/
2013-11-29  Pedro Alves  <palves@redhat.com>

	* unwind_stop_reasons.def (UNWIND_NULL_ID): Update comment.

gdb/doc/
2013-11-29  Pedro Alves  <palves@redhat.com>

	* gdb.texinfo (Frames In Python) <gdb.FRAME_UNWIND_NULL_ID>:
	Update comment.
This commit is contained in:
Pedro Alves 2013-11-29 15:25:46 +00:00
parent 8b4f3082d8
commit 20e1ca3bc1
4 changed files with 15 additions and 8 deletions
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4
gdb/ChangeLog
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@ -1,3 +1,7 @@
2013-11-29 Pedro Alves <palves@redhat.com>
* unwind_stop_reasons.def (UNWIND_NULL_ID): Update comment.
2013-11-29 Pedro Alves <palves@redhat.com>
* breakpoint.c (build_target_condition_list): Release previous

5
gdb/doc/ChangeLog
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@ -1,3 +1,8 @@
2013-11-29 Pedro Alves <palves@redhat.com>
* gdb.texinfo (Frames In Python) <gdb.FRAME_UNWIND_NULL_ID>:
Update comment.
2013-11-24 Yao Qi <yao@codesourcery.com>
* gdb.texinfo (Caching Remote Data): Document new

4
gdb/doc/gdb.texinfo
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@ -26556,7 +26556,9 @@ function to a string. The value can be one of:
No particular reason (older frames should be available).
@item gdb.FRAME_UNWIND_NULL_ID
The previous frame's analyzer returns an invalid result.
The previous frame's analyzer returns an invalid result. This is no
longer used by @value{GDBN}, and is kept only for backward
compatibility.
@item gdb.FRAME_UNWIND_OUTERMOST
This frame is the outermost.

10
gdb/unwind_stop_reasons.def
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@ -31,13 +31,9 @@
or we didn't fail. */
SET (UNWIND_NO_REASON, "no reason")
/* The previous frame's analyzer returns an invalid result
from this_id.
FIXME drow/2006-08-16: This is how GDB used to indicate end of
stack. We should migrate to a model where frames always have a
valid ID, and this becomes not just an error but an internal
error. But that's a project for another day. */
/* This is no longer used anywhere, but it's kept because it's exposed
to Python. This is how GDB used to indicate end of stack. We've
now migrated to a model where frames always have a valid ID. */
SET (UNWIND_NULL_ID, "unwinder did not report frame ID")
/* This frame is the outermost. */