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| author | Tom Tromey <tom@tromey.com> | 2016-06-09 15:20:09 -0600 |
|---|---|---|
| committer | Tom Tromey <tom@tromey.com> | 2016-07-12 13:56:07 -0600 |
| commit | e0f3fd7c44cebec7d787893b9c800e7de509cb32 (patch) | |
| tree | 482011f3bd7e241f048825d653d56f2ab45a4cd5 /gdb/doc | |
| parent | cf143069f39b4feeeca175f88b6d1a5c1cb0fee4 (diff) | |
| download | gdb-e0f3fd7c44cebec7d787893b9c800e7de509cb32.zip gdb-e0f3fd7c44cebec7d787893b9c800e7de509cb32.tar.gz gdb-e0f3fd7c44cebec7d787893b9c800e7de509cb32.tar.bz2 | |
PR python/19293 - invalidate frame cache when unwinders change
PR python/19293 notes that when a Python unwinder is disabled, the
frame cache is not invalidated. This means that disabling an unwinder
doesn't have any immediate effect -- but in my experience it's often
the case that I want to enable or disable an unwinder in order to see
what happens.
This patch adds a new gdb.invalidate_cached_frames function and
arranges for the relevant bits of library code to call it. I've only
partially documented this function, considering a warning sufficient
without going into all the reasons ordinary code should not call it.
The name of the new function was taken from a comment in frame.h next
to reinit_frame_cache.
No new test as I think the updates to the existing test are sufficient
to show that the code is working as intended.
Built and regtested on x86-64 Fedora 23.
2016-07-12 Tom Tromey <tom@tromey.com>
PR python/19293:
* python/lib/gdb/command/unwinders.py (do_enable_unwinder): Call
gdb.invalidate_cached_frames.
* python/lib/gdb/unwinder.py (register_unwinder): Call
gdb.invalidate_cached_frames.
* python/python.c (gdbpy_invalidate_cached_frames): New function.
(python_GdbMethods): Add entry for invalidate_cached_frames.
2016-07-12 Tom Tromey <tom@tromey.com>
PR python/19293:
* python.texi (Frames In Python): Document
gdb.invalidate_cached_frames.
2016-07-12 Tom Tromey <tom@tromey.com>
PR python/19293:
* gdb.python/py-unwind-maint.exp: Update tests.
Diffstat (limited to 'gdb/doc')
| -rw-r--r-- | gdb/doc/ChangeLog | 6 | ||||
| -rw-r--r-- | gdb/doc/python.texi | 9 |
2 files changed, 15 insertions, 0 deletions
diff --git a/gdb/doc/ChangeLog b/gdb/doc/ChangeLog index 3186ff2..385ca41 100644 --- a/gdb/doc/ChangeLog +++ b/gdb/doc/ChangeLog @@ -1,3 +1,9 @@ +2016-07-12 Tom Tromey <tom@tromey.com> + + PR python/19293: + * python.texi (Frames In Python): Document + gdb.invalidate_cached_frames. + 2016-06-21 Pedro Alves <palves@redhat.com> * gdb.texinfo (Interpreters): Update intepreter-exec section, diff --git a/gdb/doc/python.texi b/gdb/doc/python.texi index 6623d8e..f218ad6 100644 --- a/gdb/doc/python.texi +++ b/gdb/doc/python.texi @@ -3838,6 +3838,15 @@ frames, as expressed by the given @var{reason} code (an integer, see the @code{unwind_stop_reason} method further down in this section). @end defun +@findex gdb.invalidate_cached_frames +@defun gdb.invalidate_cached_frames +@value{GDBN} internally keeps a cache of the frames that have been +unwound. This function invalidates this cache. + +This function should not generally be called by ordinary Python code. +It is documented for the sake of completeness. +@end defun + A @code{gdb.Frame} object has the following methods: @defun Frame.is_valid () |