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 5D41C3858D1E; Thu, 28 Mar 2024 14:28:07 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 5D41C3858D1E
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org;
	s=default; t=1711636087;
	bh=PoE0N16+zkWt0dqRAhhHjT45o0aNTef/xH3LOpky2ac=;
	h=From:To:Subject:Date:From;
	b=HCqeC3iMhZMTWb0NGnNQgWzS1Wi4eFTQDEkJsIdgTwDaQITRQTQPbiiebgmRxjpTp
	 9vZ7vcJjLxa+KuMUT7QATeZIWDIVXzLSCNMEW697yxhJvCAvIeoWFhsrHcdKsW6h/M
	 Cr59eWD+GR4p0eg16YprUwYkt8x+Zffhk7tyo+ok=
From: "tromey at sourceware dot org" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug gdb/31569] New: "finish" command loses typedef
Date: Thu, 28 Mar 2024 14:28:06 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: new
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gdb
X-Bugzilla-Component: gdb
X-Bugzilla-Version: HEAD
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: tromey at sourceware dot org
X-Bugzilla-Status: NEW
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-31569-4717@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
List-Id: <gdb-prs.sourceware.org>

https://sourceware.org/bugzilla/show_bug.cgi?id=3D31569

            Bug ID: 31569
           Summary: "finish" command loses typedef
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: gdb
          Assignee: unassigned at sourceware dot org
          Reporter: tromey at sourceware dot org
  Target Milestone: ---

gcc has a "tree" typedef and a pretty-printer that
recognizes it.

While debugging gcc, I used "finish" and got:

(gdb) fini
Run till exit from #0  get_global_context () at
../../gcc/gcc/ada/gcc-interface/utils.cc:812
0x0000000001b0e800 in gnat_push_namespace (ns=3D<namespace_decl 0x7fffe9c32=
980
pck>) at ../../gcc/gcc/ada/gcc-interface/utils.cc:820
Value returned is $26 =3D (tree_node *) 0x7fffe9c0c168


However, this function is actually defined as:

static tree
get_global_context (void)
{
...


If I cast that value back to a tree, I get the pretty-printer output:

(gdb) p (tree) $
$28 =3D <translation_unit_decl 0x7fffe9c0c168 pck.ads>


I think this is a bug -- "finish" should result in a value that
uses the function's declared return type, so that pretty-printers
can see what they expect.

Arguably I guess this is a bug in gcc as well, since it should
probably recognize the underlying type and not the typedef.

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