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gobject.py: Don't install frame filters when GDB does not support them

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Stock GDB (both versions 7.0 and 7.1) does not come with the new
backtrace code and python API. To prevent an ugly python backtrace when
auto-loading gobject.py, let's catch the exception and not register the
FrameWrapper and the FrameFilter.

https://bugzilla.gnome.org/show_bug.cgi?id=613732
This commit is contained in:
Damien Lespiau 2010-03-23 15:18:12 +00:00 committed by Colin Walters
parent 4846fd923d
commit 91d4659bbf
1 changed files with 20 additions and 10 deletions
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10
gobject/gobject.py
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@ -1,7 +1,15 @@
import os.path
import gdb import gdb
import glib import glib
try:
import gdb.backtrace import gdb.backtrace
import gdb.command.backtrace import gdb.command.backtrace
except ImportError:
print(os.path.basename(__file__) + ": gdb was not built with "
"custom backtrace support, disabling.")
HAVE_GDB_BACKTRACE = 0
else:
HAVE_GDB_BACKTRACE = 1
# This is not quite right, as local vars may override symname # This is not quite right, as local vars may override symname
def read_global_var (symname): def read_global_var (symname):
@ -107,6 +115,7 @@ class GFrameWrapper:
return getattr (self.frame, name) return getattr (self.frame, name)
# Monkey patch FrameWrapper to avoid IA__ in symbol names # Monkey patch FrameWrapper to avoid IA__ in symbol names
if HAVE_GDB_BACKTRACE:
old__init__ = gdb.command.backtrace.FrameWrapper.__init__ old__init__ = gdb.command.backtrace.FrameWrapper.__init__
def monkey_patched_init(self, frame): def monkey_patched_init(self, frame):
name = frame.name() name = frame.name()
@ -301,5 +310,6 @@ def register (obj):
if obj == None: if obj == None:
obj = gdb obj = gdb
if HAVE_GDB_BACKTRACE:
gdb.backtrace.push_frame_filter (GFrameFilter) gdb.backtrace.push_frame_filter (GFrameFilter)
obj.pretty_printers.append(pretty_printer_lookup) obj.pretty_printers.append(pretty_printer_lookup)