From: Marc Glisse <marc.glisse@inria.fr>
To: Simon Marchi <simon.marchi@polymtl.ca>
Cc: Jonathan Wakely <jwakely.gcc@gmail.com>,
Michael Matz <matz@suse.de>,
Daniel Berlin <dberlin@dberlin.org>,
Martin Sebor <msebor@gmail.com>, Manfred <mx2927@gmail.com>,
gdb@sourceware.org, GCC <gcc@gcc.gnu.org>
Subject: Re: gdb 8.x - g++ 7.x compatibility
Date: Wed, 07 Feb 2018 17:31:00 -0000 [thread overview]
Message-ID: <alpine.DEB.2.21.1802071829570.20392@stedding.saclay.inria.fr> (raw)
In-Reply-To: <5a58deaaf993c5dc275386e5cd89cc37@polymtl.ca>
On Wed, 7 Feb 2018, Simon Marchi wrote:
> On 2018-02-07 12:08, Jonathan Wakely wrote:
>> Why would they not have a mangled name?
>>
>>> Interesting. What do they look like, and in what context do they appear?
>>
>> Anywhere you need a name for linkage purposes, such as in a function
>> signature, or as a template argument of another type, or in the
>> std::type_info::name() for the type etc. etc.
>>
>> $ g++ -o test.o -c -x c++ - <<< 'struct X {}; void f(X) {}
>> template<typename T> struct Y { }; void g(Y<X>) {}' && nm
>> --defined-only test.o
>> 0000000000000000 T _Z1f1X
>> 0000000000000007 T _Z1g1YI1XE
>>
>> The mangled name for X is "X" and the mangled name for Y<X> is "YI1XE"
>> which includes the name "X".
>>
>> This isn't really on-topic for solving the GDB type lookup problem though.
>
> Ah ok, the class name appears mangled in other entities' mangled name. But
> from what I understand there's no mangled name for the class such that
>
> echo <class mangled name> | c++filt
>
> outputs the class name (e.g. "Foo<10>"). That wouldn't make sense, since
> there's no symbol for the class itself.
$ echo _Z1YI1XE | c++filt
Y<X>
--
Marc Glisse
next prev parent reply other threads:[~2018-02-07 17:31 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-03 3:17 Roman Popov
2018-02-03 3:57 ` carl hansen
2018-02-03 4:54 ` Simon Marchi
2018-02-03 5:02 ` Roman Popov
2018-02-03 6:43 ` Roman Popov
2018-02-03 14:20 ` Paul Smith
2018-02-03 17:18 ` Roman Popov
2018-02-03 18:36 ` Manfred
2018-02-04 5:02 ` Simon Marchi
2018-02-04 17:09 ` Manfred
2018-02-04 19:17 ` Martin Sebor
2018-02-05 5:07 ` Simon Marchi
2018-02-05 16:45 ` Martin Sebor
2018-02-05 16:59 ` Simon Marchi
2018-02-05 17:44 ` Roman Popov
2018-02-05 20:08 ` Jonathan Wakely
2018-02-05 20:10 ` Roman Popov
2018-02-05 20:12 ` Jonathan Wakely
2018-02-05 20:17 ` Roman Popov
2018-02-06 3:52 ` Martin Sebor
2018-02-07 7:21 ` Daniel Berlin
2018-02-07 13:44 ` Simon Marchi
2018-02-07 15:07 ` Manfred
2018-02-07 15:16 ` Jonathan Wakely
2018-02-07 16:19 ` Manfred
2018-02-07 16:26 ` Michael Matz
2018-02-07 16:43 ` Simon Marchi
2018-02-07 16:51 ` Jonathan Wakely
2018-02-07 17:03 ` Simon Marchi
2018-02-07 17:08 ` Jonathan Wakely
2018-02-07 17:20 ` Simon Marchi
2018-02-07 17:30 ` Jonathan Wakely
2018-02-07 18:28 ` Simon Marchi
2018-02-08 11:26 ` Michael Matz
2018-02-08 14:05 ` Paul Smith
2018-02-08 14:07 ` Jonathan Wakely
2018-02-07 17:31 ` Marc Glisse [this message]
2018-02-07 17:04 ` Daniel Berlin
2018-02-07 17:11 ` Daniel Berlin
2018-02-07 22:00 ` Nathan Sidwell
2018-02-07 20:29 ` Tom Tromey
2018-02-08 15:05 ` Richard Biener
2018-03-01 20:18 ` Roman Popov
2018-03-01 20:26 ` Andrew Pinski
2018-03-01 21:03 ` Jason Merrill
2018-03-02 23:06 ` Roman Popov
2018-03-03 4:01 ` Roman Popov
2018-03-04 4:28 ` Daniel Berlin
2018-02-05 11:05 ` Jonathan Wakely
2018-02-07 15:19 ` Jonathan Wakely
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