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* [Bug python/18438] New: PyExc_MemoryError != gdbpy_gdb_memory_error
@ 2015-05-20 21:32 dje at google dot com
2015-05-26 23:15 ` [Bug python/18438] " cvs-commit at gcc dot gnu.org
2015-05-26 23:17 ` dje at google dot com
0 siblings, 2 replies; 3+ messages in thread
From: dje at google dot com @ 2015-05-20 21:32 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=18438
Bug ID: 18438
Summary: PyExc_MemoryError != gdbpy_gdb_memory_error
Product: gdb
Version: HEAD
Status: NEW
Severity: normal
Priority: P2
Component: python
Assignee: unassigned at sourceware dot org
Reporter: dje at google dot com
Target Milestone: ---
A user is getting the following in a backtrace:
...
#7 0x000000000040bac0 in operator<< <char, std::char_traits<char>,
std::allocator<char> > (__os=warning: RTTI symbol not found for class
'std::ostream'
..., Traceback (most recent call last):
File "/foo/printers.py", line 38, in to_string
return ptr.lazy_string (length = length)
MemoryError: Cannot create a lazy string with address 0x0, and a non-zero
length.
__str=
) at bar/string:927
#8 0x000000000040ba55 in main () at baz.cc:10
The RTTI error is a separate bug (IIRC PR 18141, PR 18417 - there are multiple
bugs here, I could be forgetting one).
This bug is the python backtrace being printed when there's a memory error.
That's not supposed to happen.
The bug arises because PyExc_MemoryError is being used instead of
gdbpy_gdb_memory_error. Patch to follow.
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* [Bug python/18438] PyExc_MemoryError != gdbpy_gdb_memory_error
2015-05-20 21:32 [Bug python/18438] New: PyExc_MemoryError != gdbpy_gdb_memory_error dje at google dot com
@ 2015-05-26 23:15 ` cvs-commit at gcc dot gnu.org
2015-05-26 23:17 ` dje at google dot com
1 sibling, 0 replies; 3+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2015-05-26 23:15 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=18438
--- Comment #1 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Doug Evans <devans@sourceware.org>:
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=4ea6efe9365f8a87723fe01a2dd8ddf5cdec1498
commit 4ea6efe9365f8a87723fe01a2dd8ddf5cdec1498
Author: Doug Evans <dje@google.com>
Date: Tue May 26 16:13:04 2015 -0700
PR python/18438
gdb/ChangeLog:
* python/py-lazy-string.c (stpy_convert_to_value): Use
gdbpy_gdb_memory_error not PyExc_MemoryError.
(gdbpy_create_lazy_string_object): Ditto.
gdb/testsuite/ChangeLog:
* gdb.python/py-lazy-string.c: New file.
* gdb.python/py-lazy-string.exp: New file.
* gdb.python/py-prettyprint.c (lazystring) <len>: New member.
(main): Update. Add estring3.
* gdb.python/py-prettyprint.exp: Add tests for strings at address 0.
* gdb.python/py-prettyprint.py (pp_ls): Handle length.
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* [Bug python/18438] PyExc_MemoryError != gdbpy_gdb_memory_error
2015-05-20 21:32 [Bug python/18438] New: PyExc_MemoryError != gdbpy_gdb_memory_error dje at google dot com
2015-05-26 23:15 ` [Bug python/18438] " cvs-commit at gcc dot gnu.org
@ 2015-05-26 23:17 ` dje at google dot com
1 sibling, 0 replies; 3+ messages in thread
From: dje at google dot com @ 2015-05-26 23:17 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=18438
dje at google dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #2 from dje at google dot com ---
patch committed
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2015-05-20 21:32 [Bug python/18438] New: PyExc_MemoryError != gdbpy_gdb_memory_error dje at google dot com
2015-05-26 23:15 ` [Bug python/18438] " cvs-commit at gcc dot gnu.org
2015-05-26 23:17 ` dje at google dot com
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