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authorTom Tromey <tom@tromey.com>2018-09-16 08:02:22 -0600
committerTom Tromey <tom@tromey.com>2018-09-16 23:36:54 -0600
commit4a137fec2e1a8a6372da8fca1040ee582c62f78d (patch)
tree6b99d8cbfba9349e6018200496fbf3d6b515e91c /gdb
parent8ff03f0bfbf0dc7d125f6ea0b844636c0aba74f6 (diff)
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Simplify uses of thread_to_thread_object
An review by Simon of an earlier showed a few spots related to thread_to_thread_object that could be simplified. This also detected a latent bug, where thread_to_thread_object was inconsistent about setting the Python exception before a NULL return. Tested on x86-64 Fedora 28. gdb/ChangeLog 2018-09-16 Tom Tromey <tom@tromey.com> * python/py-threadevent.c (py_get_event_thread): Simplify. * python/py-inferior.c (infpy_thread_from_thread_handle): Return immediately after calling thread_to_thread_object. Use Py_RETURN_NONE. (thread_to_thread_object): Set the exception on a NULL return.
Diffstat (limited to 'gdb')
-rw-r--r--gdb/ChangeLog8
-rw-r--r--gdb/python/py-inferior.c10
-rw-r--r--gdb/python/py-threadevent.c13
3 files changed, 14 insertions, 17 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index f5c5d21..4f8bd2b 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,11 @@
+2018-09-16 Tom Tromey <tom@tromey.com>
+
+ * python/py-threadevent.c (py_get_event_thread): Simplify.
+ * python/py-inferior.c (infpy_thread_from_thread_handle):
+ Return immediately after calling thread_to_thread_object. Use
+ Py_RETURN_NONE.
+ (thread_to_thread_object): Set the exception on a NULL return.
+
2018-09-16 Simon Marchi <simon.marchi@polymtl.ca>
* Makefile.in (LIBGDB_OBS): Sort COMMON_OBS.
diff --git a/gdb/python/py-inferior.c b/gdb/python/py-inferior.c
index 68c4c9d..145f53d 100644
--- a/gdb/python/py-inferior.c
+++ b/gdb/python/py-inferior.c
@@ -319,6 +319,8 @@ thread_to_thread_object (thread_info *thr)
if (thread->thread_obj->thread == thr)
return gdbpy_ref<>::new_reference ((PyObject *) thread->thread_obj);
+ PyErr_SetString (PyExc_SystemError,
+ _("could not find gdb thread object"));
return NULL;
}
@@ -849,7 +851,6 @@ infpy_thread_from_thread_handle (PyObject *self, PyObject *args, PyObject *kw)
return NULL;
}
- gdbpy_ref<> result;
TRY
{
struct thread_info *thread_info;
@@ -857,7 +858,7 @@ infpy_thread_from_thread_handle (PyObject *self, PyObject *args, PyObject *kw)
thread_info = find_thread_by_handle (val, inf_obj->inferior);
if (thread_info != NULL)
- result = thread_to_thread_object (thread_info);
+ return thread_to_thread_object (thread_info).release ();
}
CATCH (except, RETURN_MASK_ALL)
{
@@ -865,10 +866,7 @@ infpy_thread_from_thread_handle (PyObject *self, PyObject *args, PyObject *kw)
}
END_CATCH
- if (result == NULL)
- result = gdbpy_ref<>::new_reference (Py_None);
-
- return result.release ();
+ Py_RETURN_NONE;
}
/* Implement repr() for gdb.Inferior. */
diff --git a/gdb/python/py-threadevent.c b/gdb/python/py-threadevent.c
index 13af1c8..ea62540 100644
--- a/gdb/python/py-threadevent.c
+++ b/gdb/python/py-threadevent.c
@@ -25,24 +25,15 @@
gdbpy_ref<>
py_get_event_thread (ptid_t ptid)
{
- gdbpy_ref<> pythread;
-
if (non_stop)
{
thread_info *thread = find_thread_ptid (ptid);
if (thread != nullptr)
- pythread = thread_to_thread_object (thread);
- }
- else
- pythread = gdbpy_ref<>::new_reference (Py_None);
-
- if (pythread == nullptr)
- {
+ return thread_to_thread_object (thread);
PyErr_SetString (PyExc_RuntimeError, "Could not find event thread");
return NULL;
}
-
- return pythread;
+ return gdbpy_ref<>::new_reference (Py_None);
}
gdbpy_ref<>