From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <sourceware-bugzilla@sourceware.org>
Received: by sourceware.org (Postfix, from userid 48)
 id 2FA6F3836E5F; Tue, 31 May 2022 20:53:44 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 2FA6F3836E5F
From: "dblaikie at gmail dot com" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug c++/29215] New: Can't find nested type under strange
 circumstances (outer namespace or unrelated code built without debug info)
Date: Tue, 31 May 2022 20:53:43 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gdb
X-Bugzilla-Component: c++
X-Bugzilla-Version: 10.1
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: dblaikie at gmail dot com
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P2
X-Bugzilla-Assigned-To: unassigned at sourceware dot org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: bug_id short_desc product version bug_status
 bug_severity priority component assigned_to reporter target_milestone
Message-ID: <bug-29215-4717@http.sourceware.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://sourceware.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-BeenThere: gdb-prs@sourceware.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Gdb-prs mailing list <gdb-prs.sourceware.org>
List-Unsubscribe: <https://sourceware.org/mailman/options/gdb-prs>,
 <mailto:gdb-prs-request@sourceware.org?subject=unsubscribe>
List-Archive: <https://sourceware.org/pipermail/gdb-prs/>
List-Help: <mailto:gdb-prs-request@sourceware.org?subject=help>
List-Subscribe: <https://sourceware.org/mailman/listinfo/gdb-prs>,
 <mailto:gdb-prs-request@sourceware.org?subject=subscribe>
X-List-Received-Date: Tue, 31 May 2022 20:53:44 -0000

https://sourceware.org/bugzilla/show_bug.cgi?id=3D29215

            Bug ID: 29215
           Summary: Can't find nested type under strange circumstances
                    (outer namespace or unrelated code built without debug
                    info)
           Product: gdb
           Version: 10.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c++
          Assignee: unassigned at sourceware dot org
          Reporter: dblaikie at gmail dot com
  Target Milestone: ---

a.cpp:
```
void f1();
int main() {
  f1();
}
```
b.cpp:
```
namespace x {
struct t1 {
  t1();
  struct t2 {
    t2();
  };
};
}
x::t1::t1() { }
x::t1::t2::t2() { }
void f1() { }
```
Build the first without debug info, and the second with debug info and
pubnames/gdb-index:
```
$ clang++ -c a.cpp
$ clang++ -c b.cpp -g -ggnu-pubnames -Wl,--gdb-index
$ clang++ a.o b.o -fuse-ld=3Dlld=20
$ gdb -ex "ptype x::t1::t2" -ex "ptype x::t1" -ex quit a.out
No type "t1" within class or namespace "x".
type =3D struct x::t1 {
...
```
But if you add `-g -ggnu-pubnames` to a.cpp, or if you remove the namespace,
the name lookups do seem to work.

(reproduces with GCC-built DWARF too)

--=20
You are receiving this mail because:
You are on the CC list for the bug.=