* [Bug libstdc++/42230] abi::__cxa_demangle fails to return the length of the decoded name
2009-11-30 14:03 [Bug libstdc++/42230] New: abi::__cxa_demangle fails to return the length of the decoded name gcc at magfr dot user dot lysator dot liu dot se
@ 2009-11-30 15:29 ` paolo dot carlini at oracle dot com
2009-12-04 16:20 ` [Bug other/42230] " paolo dot carlini at oracle dot com
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From: paolo dot carlini at oracle dot com @ 2009-11-30 15:29 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from paolo dot carlini at oracle dot com 2009-11-30 15:29 -------
Ian, can you have a look to this issue? Thanks in advance.
--
paolo dot carlini at oracle dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |iant at google dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42230
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug other/42230] abi::__cxa_demangle fails to return the length of the decoded name
2009-11-30 14:03 [Bug libstdc++/42230] New: abi::__cxa_demangle fails to return the length of the decoded name gcc at magfr dot user dot lysator dot liu dot se
2009-11-30 15:29 ` [Bug libstdc++/42230] " paolo dot carlini at oracle dot com
@ 2009-12-04 16:20 ` paolo dot carlini at oracle dot com
2010-01-09 19:08 ` paolo dot carlini at oracle dot com
` (10 subsequent siblings)
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From: paolo dot carlini at oracle dot com @ 2009-12-04 16:20 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from paolo dot carlini at oracle dot com 2009-12-04 16:20 -------
I'm recategorizing as other, because actually the demangler doesn't belong to
the library.
--
paolo dot carlini at oracle dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|libstdc++ |other
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42230
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug other/42230] abi::__cxa_demangle fails to return the length of the decoded name
2009-11-30 14:03 [Bug libstdc++/42230] New: abi::__cxa_demangle fails to return the length of the decoded name gcc at magfr dot user dot lysator dot liu dot se
2009-11-30 15:29 ` [Bug libstdc++/42230] " paolo dot carlini at oracle dot com
2009-12-04 16:20 ` [Bug other/42230] " paolo dot carlini at oracle dot com
@ 2010-01-09 19:08 ` paolo dot carlini at oracle dot com
2010-01-09 20:32 ` hjl dot tools at gmail dot com
` (9 subsequent siblings)
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From: paolo dot carlini at oracle dot com @ 2010-01-09 19:08 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from paolo dot carlini at oracle dot com 2010-01-09 19:08 -------
Maybe HJ is interested...
--
paolo dot carlini at oracle dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |hjl dot tools at gmail dot
| |com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42230
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug other/42230] abi::__cxa_demangle fails to return the length of the decoded name
2009-11-30 14:03 [Bug libstdc++/42230] New: abi::__cxa_demangle fails to return the length of the decoded name gcc at magfr dot user dot lysator dot liu dot se
` (2 preceding siblings ...)
2010-01-09 19:08 ` paolo dot carlini at oracle dot com
@ 2010-01-09 20:32 ` hjl dot tools at gmail dot com
2010-01-09 20:51 ` paolo dot carlini at oracle dot com
` (8 subsequent siblings)
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From: hjl dot tools at gmail dot com @ 2010-01-09 20:32 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from hjl dot tools at gmail dot com 2010-01-09 20:32 -------
Please provide a testcase.
--
hjl dot tools at gmail dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |WAITING
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42230
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug other/42230] abi::__cxa_demangle fails to return the length of the decoded name
2009-11-30 14:03 [Bug libstdc++/42230] New: abi::__cxa_demangle fails to return the length of the decoded name gcc at magfr dot user dot lysator dot liu dot se
` (3 preceding siblings ...)
2010-01-09 20:32 ` hjl dot tools at gmail dot com
@ 2010-01-09 20:51 ` paolo dot carlini at oracle dot com
2010-01-09 21:03 ` ian at airs dot com
` (7 subsequent siblings)
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From: paolo dot carlini at oracle dot com @ 2010-01-09 20:51 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from paolo dot carlini at oracle dot com 2010-01-09 20:51 -------
I have in front of me the documentation in cxxabi.h and something like the
below should pass, AFAICS:
#include <cxxabi.h>
#include <cassert>
#include <cstddef>
int main()
{
std::size_t length = 0;
int cc;
char* ret = abi::__cxa_demangle("e", 0, &length, &cc);
assert( (cc < 0 && !ret) || (ret && length) );
}
--
paolo dot carlini at oracle dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |paolo dot carlini at oracle
| |dot com
Status|WAITING |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2010-01-09 20:51:05
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42230
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug other/42230] abi::__cxa_demangle fails to return the length of the decoded name
2009-11-30 14:03 [Bug libstdc++/42230] New: abi::__cxa_demangle fails to return the length of the decoded name gcc at magfr dot user dot lysator dot liu dot se
` (4 preceding siblings ...)
2010-01-09 20:51 ` paolo dot carlini at oracle dot com
@ 2010-01-09 21:03 ` ian at airs dot com
2010-01-09 21:05 ` paolo dot carlini at oracle dot com
` (6 subsequent siblings)
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From: ian at airs dot com @ 2010-01-09 21:03 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from ian at airs dot com 2010-01-09 21:03 -------
As far as I can see, that does pass.
Note that the returned length is not the length of the demangled string, it is
the length of the allocated buffer. That is, it may be larger than the length
of the demangled string.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42230
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug other/42230] abi::__cxa_demangle fails to return the length of the decoded name
2009-11-30 14:03 [Bug libstdc++/42230] New: abi::__cxa_demangle fails to return the length of the decoded name gcc at magfr dot user dot lysator dot liu dot se
` (5 preceding siblings ...)
2010-01-09 21:03 ` ian at airs dot com
@ 2010-01-09 21:05 ` paolo dot carlini at oracle dot com
2010-01-09 21:15 ` ian at airs dot com
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From: paolo dot carlini at oracle dot com @ 2010-01-09 21:05 UTC (permalink / raw)
To: gcc-bugs
------- Comment #7 from paolo dot carlini at oracle dot com 2010-01-09 21:04 -------
Doesn't pass for me. I don't have a special setup, a current, widespread
desktop Linux system.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42230
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug other/42230] abi::__cxa_demangle fails to return the length of the decoded name
2009-11-30 14:03 [Bug libstdc++/42230] New: abi::__cxa_demangle fails to return the length of the decoded name gcc at magfr dot user dot lysator dot liu dot se
` (6 preceding siblings ...)
2010-01-09 21:05 ` paolo dot carlini at oracle dot com
@ 2010-01-09 21:15 ` ian at airs dot com
2010-01-09 21:29 ` paolo dot carlini at oracle dot com
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From: ian at airs dot com @ 2010-01-09 21:15 UTC (permalink / raw)
To: gcc-bugs
------- Comment #8 from ian at airs dot com 2010-01-09 21:15 -------
Oh sorry, I think the version I tested with was too old. I think this broke
with Simon's patch of 2007-01-29. I bet this patch fixes it:
Index: cp-demangle.c
===================================================================
--- cp-demangle.c (revision 155776)
+++ cp-demangle.c (working copy)
@@ -4777,7 +4777,7 @@ d_demangle (const char *mangled, int opt
return NULL;
}
- *palc = dgs.allocation_failure ? 1 : 0;
+ *palc = dgs.allocation_failure ? 1 : dgs.alc;
return dgs.buf;
}
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42230
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug other/42230] abi::__cxa_demangle fails to return the length of the decoded name
2009-11-30 14:03 [Bug libstdc++/42230] New: abi::__cxa_demangle fails to return the length of the decoded name gcc at magfr dot user dot lysator dot liu dot se
` (7 preceding siblings ...)
2010-01-09 21:15 ` ian at airs dot com
@ 2010-01-09 21:29 ` paolo dot carlini at oracle dot com
2010-01-09 21:55 ` hjl dot tools at gmail dot com
` (3 subsequent siblings)
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From: paolo dot carlini at oracle dot com @ 2010-01-09 21:29 UTC (permalink / raw)
To: gcc-bugs
------- Comment #9 from paolo dot carlini at oracle dot com 2010-01-09 21:29 -------
Thanks. The change would be also fully consistent with cplus_demangle_print. If
regtesting is fine it almost qualifies as trivial, I would say... HJ, are you
willing to prepare and test a complete patch?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42230
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug other/42230] abi::__cxa_demangle fails to return the length of the decoded name
2009-11-30 14:03 [Bug libstdc++/42230] New: abi::__cxa_demangle fails to return the length of the decoded name gcc at magfr dot user dot lysator dot liu dot se
` (8 preceding siblings ...)
2010-01-09 21:29 ` paolo dot carlini at oracle dot com
@ 2010-01-09 21:55 ` hjl dot tools at gmail dot com
2010-01-09 22:34 ` ian at airs dot com
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From: hjl dot tools at gmail dot com @ 2010-01-09 21:55 UTC (permalink / raw)
To: gcc-bugs
------- Comment #10 from hjl dot tools at gmail dot com 2010-01-09 21:54 -------
A patch is posted at
http://gcc.gnu.org/ml/gcc-patches/2010-01/msg00458.html
--
hjl dot tools at gmail dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
URL| |http://gcc.gnu.org/ml/gcc-
| |patches/2010-
| |01/msg00458.html
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42230
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug other/42230] abi::__cxa_demangle fails to return the length of the decoded name
2009-11-30 14:03 [Bug libstdc++/42230] New: abi::__cxa_demangle fails to return the length of the decoded name gcc at magfr dot user dot lysator dot liu dot se
` (9 preceding siblings ...)
2010-01-09 21:55 ` hjl dot tools at gmail dot com
@ 2010-01-09 22:34 ` ian at airs dot com
2010-01-10 0:25 ` hjl at gcc dot gnu dot org
2010-01-10 1:40 ` paolo dot carlini at oracle dot com
12 siblings, 0 replies; 14+ messages in thread
From: ian at airs dot com @ 2010-01-09 22:34 UTC (permalink / raw)
To: gcc-bugs
------- Comment #11 from ian at airs dot com 2010-01-09 22:33 -------
The patch is OK if it passes testing. Thanks.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42230
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug other/42230] abi::__cxa_demangle fails to return the length of the decoded name
2009-11-30 14:03 [Bug libstdc++/42230] New: abi::__cxa_demangle fails to return the length of the decoded name gcc at magfr dot user dot lysator dot liu dot se
` (10 preceding siblings ...)
2010-01-09 22:34 ` ian at airs dot com
@ 2010-01-10 0:25 ` hjl at gcc dot gnu dot org
2010-01-10 1:40 ` paolo dot carlini at oracle dot com
12 siblings, 0 replies; 14+ messages in thread
From: hjl at gcc dot gnu dot org @ 2010-01-10 0:25 UTC (permalink / raw)
To: gcc-bugs
------- Comment #12 from hjl at gcc dot gnu dot org 2010-01-10 00:25 -------
Subject: Bug 42230
Author: hjl
Date: Sun Jan 10 00:24:52 2010
New Revision: 155785
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=155785
Log:
Return dgs.alc on success
libiberty/
2010-01-09 Ian Lance Taylor <iant@google.com>
PR other/42230
* cp-demangle.c (d_demangle): Return dgs.alc on success.
libstdc++-v3/
2010-01-09 H.J. Lu <hongjiu.lu@intel.com>
PR other/42230
* testsuite/abi/pr42230.cc: New.
Added:
trunk/libstdc++-v3/testsuite/abi/pr42230.cc
Modified:
trunk/libiberty/ChangeLog
trunk/libiberty/cp-demangle.c
trunk/libstdc++-v3/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42230
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug other/42230] abi::__cxa_demangle fails to return the length of the decoded name
2009-11-30 14:03 [Bug libstdc++/42230] New: abi::__cxa_demangle fails to return the length of the decoded name gcc at magfr dot user dot lysator dot liu dot se
` (11 preceding siblings ...)
2010-01-10 0:25 ` hjl at gcc dot gnu dot org
@ 2010-01-10 1:40 ` paolo dot carlini at oracle dot com
12 siblings, 0 replies; 14+ messages in thread
From: paolo dot carlini at oracle dot com @ 2010-01-10 1:40 UTC (permalink / raw)
To: gcc-bugs
------- Comment #13 from paolo dot carlini at oracle dot com 2010-01-10 01:39 -------
Fixed for 4.5.0.
--
paolo dot carlini at oracle dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
Target Milestone|--- |4.5.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42230
^ permalink raw reply [flat|nested] 14+ messages in thread