Bug 12267 - gdb.Value of type pointer has a negative address sometimes
Summary: gdb.Value of type pointer has a negative address sometimes
Status: RESOLVED DUPLICATE of bug 20126
Alias: None
Product: gdb
Classification: Unclassified
Component: python (show other bugs)
Version: 7.2
: P2 normal
Target Milestone: ---
Assignee: Not yet assigned to anyone
Depends on:
Reported: 2010-11-25 20:47 UTC by Mark Florisson
Modified: 2018-09-15 05:23 UTC (History)
2 users (show)

See Also:
Last reconfirmed:


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Description Mark Florisson 2010-11-25 20:47:32 UTC
This problem was encountered when calling a function (using gdb.parse_and_eval()) in a Python inferior that returns a PyObject *. This is the result of a debug session with Pdb (the Python Debugger) inside gdb:

(Pdb) print gdbval
<unknown at remote 0x-80f8220>
(Pdb) print gdbval.address
(Pdb) long(gdbval)
(Pdb) print gdbval.type
PyObject *

As you can see, the address is negative when you print the value or try to convert it to a Python long.
Comment 1 Phil Muldoon 2011-03-17 13:54:52 UTC
I tried to reproduce this but couldn't.  Not too much info to work with here.  Do you have a more specific reproducer?
Comment 2 Tom Tromey 2018-09-15 05:23:12 UTC
Probably a dup.

*** This bug has been marked as a duplicate of bug 20126 ***