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* [Bug c++/61652] New: Option --enable-libstdcxx-debug doesn't pass debug options to libstdc++.so
@ 2014-06-30 0:28 yuri at tsoft dot com
2015-03-25 18:08 ` [Bug c++/61652] Option --enable-libstdcxx-debug doesn't pass debug compile " redi at gcc dot gnu.org
2015-03-25 18:28 ` [Bug c++/61652] Option --enable-libstdcxx-debug doesn't build debug version of libsupc++.so redi at gcc dot gnu.org
0 siblings, 2 replies; 3+ messages in thread
From: yuri at tsoft dot com @ 2014-06-30 0:28 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61652
Bug ID: 61652
Summary: Option --enable-libstdcxx-debug doesn't pass debug
options to libstdc++.so
Product: gcc
Version: 4.8.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: yuri at tsoft dot com
Based on documentation here
https://gcc.gnu.org/onlinedocs/libstdc++/manual/debug.html I configured gcc to
build a debug version of libstdc++.so:
$ ../src/configure --prefix=/opt/gcc/4.8.2/ --enable-libstdcxx-debug
--enable-libstdcxx-debug-flags='-g3 -O0'
$ gmake
It did build another version of libstdc++.so with different size under
lib/debug/, but both of them have local variables optimized away.
I am interested in ../src/libstdc++-v3/libsupc++/dyncast.cc, touching it and
rebuilding shows that -O0 hasn't been passed to the compile command, and it
builds with -O2.
Building gcc-4.8.2 on FreeBSD-10
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug c++/61652] Option --enable-libstdcxx-debug doesn't pass debug compile options to libstdc++.so
2014-06-30 0:28 [Bug c++/61652] New: Option --enable-libstdcxx-debug doesn't pass debug options to libstdc++.so yuri at tsoft dot com
@ 2015-03-25 18:08 ` redi at gcc dot gnu.org
2015-03-25 18:28 ` [Bug c++/61652] Option --enable-libstdcxx-debug doesn't build debug version of libsupc++.so redi at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: redi at gcc dot gnu.org @ 2015-03-25 18:08 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61652
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> ---
You don't need to use --enable-libstdcxx-debug-flags, the default is to build
the debug libs with -g3 -O0 anyway, and that works fine for me. Maybe using
--enable-libstdcxx-debug-flags breaks that, I'll check.
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug c++/61652] Option --enable-libstdcxx-debug doesn't build debug version of libsupc++.so
2014-06-30 0:28 [Bug c++/61652] New: Option --enable-libstdcxx-debug doesn't pass debug options to libstdc++.so yuri at tsoft dot com
2015-03-25 18:08 ` [Bug c++/61652] Option --enable-libstdcxx-debug doesn't pass debug compile " redi at gcc dot gnu.org
@ 2015-03-25 18:28 ` redi at gcc dot gnu.org
1 sibling, 0 replies; 3+ messages in thread
From: redi at gcc dot gnu.org @ 2015-03-25 18:28 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61652
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2015-03-25
CC|jwakely.gcc at gmail dot com |
Summary|Option |Option
|--enable-libstdcxx-debug |--enable-libstdcxx-debug
|doesn't pass debug compile |doesn't build debug version
|options to libstdc++.so |of libsupc++.so
Ever confirmed|0 |1
--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
The option works perfectly, you should be able to look in
$target/libstdc++-v3/config.log and see something like this:
configure:17333: Debug build flags set to -g3 -O2
The problem is that libsupc++ is only build once, there's no separate
debug/libsupc++.so, and dyncast.o is part of libsupc++.
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2015-03-25 18:22 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2014-06-30 0:28 [Bug c++/61652] New: Option --enable-libstdcxx-debug doesn't pass debug options to libstdc++.so yuri at tsoft dot com
2015-03-25 18:08 ` [Bug c++/61652] Option --enable-libstdcxx-debug doesn't pass debug compile " redi at gcc dot gnu.org
2015-03-25 18:28 ` [Bug c++/61652] Option --enable-libstdcxx-debug doesn't build debug version of libsupc++.so redi at gcc dot gnu.org
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