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* [Bug c++/18417] New: printing of std::cerr gets "warning: RTTI symbol for class 'std::iostream' has bad type"
@ 2015-05-15 19:46 dje at google dot com
2015-05-27 0:26 ` [Bug c++/18417] " dje at google dot com
0 siblings, 1 reply; 2+ messages in thread
From: dje at google dot com @ 2015-05-15 19:46 UTC (permalink / raw)
To: gdb-prs
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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2015-05-15 19:46 [Bug c++/18417] New: printing of std::cerr gets "warning: RTTI symbol for class 'std::iostream' has bad type" dje at google dot com
2015-05-27 0:26 ` [Bug c++/18417] " dje at google dot com
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