Pedro Alves 3207396b95 Fix Python frame unwinder issue caught by Valgrind ... Valgrind shows: ==17026== Invalid write of size 8 ==17026== at 0x54AA80: pending_frame_invalidate (py-unwind.c:477) ==17026== by 0x5AB934: do_my_cleanups (cleanups.c:155) ==17026== by 0x5AB9AF: do_cleanups (cleanups.c:177) ==17026== by 0x54B009: pyuw_sniffer (py-unwind.c:606) ==17026== by 0x755DAC: frame_unwind_try_unwinder (frame-unwind.c:105) ==17026== by 0x755EEE: frame_unwind_find_by_frame (frame-unwind.c:160) ==17026== by 0x750FFA: compute_frame_id (frame.c:454) ==17026== by 0x753BD6: get_prev_frame_if_no_cycle (frame.c:1781) ==17026== by 0x754292: get_prev_frame_always_1 (frame.c:1955) ==17026== by 0x7542DA: get_prev_frame_always (frame.c:1971) ==17026== by 0x7547BE: get_prev_frame (frame.c:2213) ==17026== by 0x7532BD: unwind_to_current_frame (frame.c:1450) ==17026== Address 0xd27b570 is 16 bytes inside a block of size 32 free'd ==17026== at 0x4A07577: free (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so) ==17026== by 0x54B276: gdb_Py_DECREF (python-internal.h:185) ==17026== by 0x54B298: py_decref (py-utils.c:34) ==17026== by 0x5AB934: do_my_cleanups (cleanups.c:155) ==17026== by 0x5AB9AF: do_cleanups (cleanups.c:177) ==17026== by 0x54B009: pyuw_sniffer (py-unwind.c:606) ==17026== by 0x755DAC: frame_unwind_try_unwinder (frame-unwind.c:105) ==17026== by 0x755EEE: frame_unwind_find_by_frame (frame-unwind.c:160) ==17026== by 0x750FFA: compute_frame_id (frame.c:454) ==17026== by 0x753BD6: get_prev_frame_if_no_cycle (frame.c:1781) ==17026== by 0x754292: get_prev_frame_always_1 (frame.c:1955) ==17026== by 0x7542DA: get_prev_frame_always (frame.c:1971) ==17026== Simply invalidate the object before releasing it. gdb/ChangeLog: 2015-08-13 Pedro Alves <palves@redhat.com> * python/py-unwind.c (pyuw_sniffer): Install the invalidate cleanup after the decref cleanup, not before.		2015-08-13 18:56:42 +01:00
..
lib/gdb
py-arch.c
py-auto-load.c
py-block.c
py-bpevent.c
py-breakpoint.c
py-cmd.c
py-continueevent.c
py-event.c
py-event.h
py-events.h
py-evtregistry.c
py-evts.c
py-exitedevent.c
py-finishbreakpoint.c
py-frame.c
py-framefilter.c
py-function.c
py-gdb-readline.c
py-inferior.c
py-infevents.c
py-infthread.c
py-lazy-string.c
py-linetable.c
py-newobjfileevent.c
py-objfile.c
py-param.c
py-prettyprint.c
py-progspace.c
py-signalevent.c
py-stopevent.c
py-stopevent.h
py-symbol.c
py-symtab.c
py-threadevent.c
py-type.c
py-unwind.c	Fix Python frame unwinder issue caught by Valgrind	2015-08-13 18:56:42 +01:00
py-utils.c
py-value.c
py-varobj.c
py-xmethods.c
python-config.py
python-internal.h
python.c	Initialize `location' in gdbpy_decode_line	2015-08-12 11:31:24 -07:00
python.h