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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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