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From: "dje at google dot com" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug c++/18417] New: printing of std::cerr gets "warning: RTTI symbol for class 'std::iostream' has bad type"
Date: Fri, 15 May 2015 19:46:00 -0000 [thread overview]
Message-ID: <bug-18417-4717@http.sourceware.org/bugzilla/> (raw)
https://sourceware.org/bugzilla/show_bug.cgi?id=18417
Bug ID: 18417
Summary: printing of std::cerr gets "warning: RTTI symbol for
class 'std::iostream' has bad type"
Product: gdb
Version: HEAD
Status: NEW
Severity: normal
Priority: P2
Component: c++
Assignee: unassigned at sourceware dot org
Reporter: dje at google dot com
Target Milestone: ---
this is a corollary to PR 18141.
18141 is a perf issue, this one is for the correctness issue.
"p std::cerr" can give the following:
warning: RTTI symbol for class 'std::iostream' has bad type
this is because the minsym for the vtable is a typedef.
gnuv3_rtti_type calls check_typedef on the value's type,
and then does a minsym lookup by pc for the vtable
which returns "_ZTVSo" which demangles as
"vtable for std::ostream", and "std::iostream" is a typedef.
patch to follow.
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next reply other threads:[~2015-05-15 19:46 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-15 19:46 dje at google dot com [this message]
2015-05-27 0:26 ` [Bug c++/18417] " dje at google dot com
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