[Bug 1396654] Re: C++ demangling support missing from perf
Ok, on 18.04 (Bionic), if I do this ``` sudo apt-get build-dep linux-tools-4.15.0-39-generic sudo apt-get install libiberty-dev binutils-dev mkdir tmp cd tmp apt-get source linux-tools-4.15.0-39-generic cd linux-4.15.0/tools/perf make ``` I do get a perf command that demangles (so I now have a workaround) Still, if I use `debuild` instead, as shown in my previous post, the command is apparently built differently and is not able to demangle. So, I can confirm the findings similar to post #24. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1396654 Title: C++ demangling support missing from perf To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1396654/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1396654] Re: C++ demangling support missing from perf
I am affected by this on Ubuntu 18.04 (Bionic). The only workaround I have seen, is to build/rebuild the `perf` tool from the source package. This does not fix the problem for me on 18.04. ``` sudo apt-get install libiberty-dev binutils-dev mkdir tmp cd tmp apt-get source linux-tools-4.15.0-39-generic cd linux-4.15.0/ sudo apt-get build-dep linux-tools-4.15.0-39-generic debuild --no-sign ``` Then, the newly built `debian/linux-tools-4.15.0-39/usr/lib/linux- tools-4.15.0-39/perf` still does not do any demangling of C++ symbols. Am I doing something wrong, or is it a new kind of problem with a different solution on 18.04? Any help will be greatly appreciated. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1396654 Title: C++ demangling support missing from perf To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1396654/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 575084] Re: Dead keys break in Emacs with locale set by gnome-language-selector/GDM
Interestingly I have two different installations of Ubuntu 12.04, and on one of them, I have this emacs tilde problem, while on the other one, I don't. On the one where it fails, I previously switched from Lightdm to Gdm. On the one where it works, I never did such a switch of display manager. Unfortunately, switching back to Lightdm does not solve the problem, as I would have expected. Anyway, this issue is rather frustrating. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/575084 Title: Dead keys break in Emacs with locale set by gnome-language- selector/GDM To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/emacs23/+bug/575084/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 575084] Re: Dead keys break in Emacs with locale set by gnome-language-selector/GDM
Somehow htting Ctrl-x 8 in Emacs fixes the problem for that session. Back in 2008, a guy gave this hint: http://groups.google.com/group/gnu.emacs.help/browse_thread/thread/d5b1ab43f0ec5203 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/575084 Title: Dead keys break in Emacs with locale set by gnome-language- selector/GDM To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/emacs23/+bug/575084/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1002565] [NEW] Libtool fails to handle library interdependencies
Public bug reported:
Libtool fails to handle library interdependencies.
The interdependency is specified on the command line, and is recorded
correctly by libtool, however, since there is no dependency from the
point of view of the binary library files, and since libtool no longer
adds all dependency libraries on the command line, compiling of the
final application fails.
I suppose the problem is that libtool has been changed to set
link_all_deplibs=no on my platform, but I'm not sure.
Here is an example that illustrates the problem:
### create test files:
cat alpha.hpp EOI
void alpha();
EOI
cat alpha.cpp EOI
#include alpha.hpp
void alpha() {}
EOI
cat beta.hpp EOI
#include alpha.hpp
void beta1();
inline void beta2() { alpha(); }
EOI
cat beta.cpp EOI
#include beta.hpp
void beta1() {}
EOI
cat app.cpp EOI
#include beta.hpp
int main()
{
beta2();
return 0;
}
EOI
### build 'libalpha':
libtool --tag=CXX --mode=compile g++ -c alpha.cpp
libtool --tag=CXX --mode=link g++ alpha.lo -o libalpha.la -rpath /tmp
### build 'libbeta':
libtool --tag=CXX --mode=compile g++ -c beta.cpp
libtool --tag=CXX --mode=link g++ beta.lo libalpha.la -o libbeta.la -rpath /tmp
# Depends on 'libalpha'
### build app:
libtool --tag=CXX --mode=link g++ app.cpp libbeta.la -o app
### error:
# In function `beta2()':
# app.cpp: undefined reference to `alpha()'
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: libtool 2.4.2-1ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-24.38-generic 3.2.16
Uname: Linux 3.2.0-24-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu7
Architecture: amd64
Date: Tue May 22 00:37:22 2012
InstallationMedia: Ubuntu 12.04 LTS Precise Pangolin - Release amd64
(20120425)
ProcEnviron:
LANGUAGE=en_US:en
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: libtool
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: libtool (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug precise
--
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https://bugs.launchpad.net/bugs/1002565
Title:
Libtool fails to handle library interdependencies
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[Bug 1002565] Re: Libtool fails to handle library interdependencies
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1002565 Title: Libtool fails to handle library interdependencies To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libtool/+bug/1002565/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1002565] Re: Libtool fails to handle library interdependencies
Of couse, if you forget about C++, then this change is probably ok, since all dependencies would be reflected in the binary library files. This is certainly not the case for C++. I belive that the Libtool manual says unambiguously that this is supposed to work: In any event, libtool provides a simple mechanism for you to declare inter-library dependencies: for every library libname that your own library depends on, simply add a corresponding -lname option to the link line when you create your library. http://www.gnu.org/software/libtool/manual/libtool.html #Inter_002dlibrary-dependencies -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1002565 Title: Libtool fails to handle library interdependencies To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libtool/+bug/1002565/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1002565] Re: Libtool fails to handle library interdependencies
Note also that this actually worked in Ubuntu 10.04. Also see this diff excerpt on libtool.m4 between Ubuntu 10.04 and 12.04: @@ -4249,10 +4655,39 @@ openbsd*) with_gnu_ld=no ;; + linux* | k*bsd*-gnu | gnu*) +_LT_TAGVAR(link_all_deplibs, $1)=no +;; esac -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1002565 Title: Libtool fails to handle library interdependencies To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libtool/+bug/1002565/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
