konsole won't start on kde-3.4.1 here. After trying to start from an xterm I get the following: nixnut@clueless ~ $ konsole konsole: stack smashing attack in function void Konsole::makeBasicGUI()() Aborted nixnut@clueless ~ $ konsole -v Qt: 3.3.4 KDE: 3.4.1 Konsole: 1.5.1 Reproducible: Always Steps to Reproduce: 1. start kde 2. open an xterm 3. type konsole and press enter 4. error message Actual Results: konsole does not start Expected Results: konsole runs without trying to smash stacks clueless ~ # emerge info Portage 2.0.51.22-r3 (default-linux/ppc/2005.0, gcc-3.4.4, glibc-2.3.5-r2, 2.6.12-gentoo-r6 ppc) ================================================================= System uname: 2.6.12-gentoo-r6 ppc 7447A, altivec supported Gentoo Base System version 1.6.13 dev-lang/python: 2.3.5-r2, 2.4.2 sys-apps/sandbox: 1.2.12 sys-devel/autoconf: 2.13, 2.59-r6 sys-devel/automake: 1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r1 sys-devel/binutils: 2.15.90.0.3-r5 sys-devel/libtool: 1.5.18-r1 virtual/os-headers: 2.6.11-r2 ACCEPT_KEYWORDS="ppc" AUTOCLEAN="yes" CBUILD="powerpc-unknown-linux-gnu" CFLAGS="-O2 -mtune=G4 -maltivec -mabi=altivec -fno-strict-aliasing -pipe" CHOST="powerpc-unknown-linux-gnu" CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3.3/env /usr/kde/3.3/share/config /usr/kde/3.3/shutdown /usr/kde/3.4/env /usr/kde/3.4/share/config /usr/kde/3.4/shutdown /usr/kde/3/share/config /usr/lib/X11/xkb /usr/lib/mozilla/defaults/pref /usr/share/config /var/qmail/control" CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d" CXXFLAGS="-O2 -mtune=G4 -maltivec -mabi=altivec -fno-strict-aliasing -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig distlocks sandbox sfperms strict userpriv usersandbox" GENTOO_MIRRORS="http://ftp.snt.utwente.nl/pub/os/linux/gentoo http://gentoo.osuosl.org/ " PKGDIR="/usr/portage/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" PORTDIR_OVERLAY="/usr/local/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="ppc X alsa altivec berkdb bitmap-fonts crypt cups curl dlloader dvd dvdread eds emboss esd fam fortran gdbm gif gnome gpm gstreamer gtk gtk2 hardened imlib ipv6 jack java jpeg junit kde libwww mad motif mozilla mp3 mpeg mysql ncurses network nls nptl nptlonly ogg oggvorbis opengl pam pdflib perl png postgres python qt readline slang spell sqlite ssl tcpd tiff truetype truetype-fonts type1-fonts unicode vorbis xml xml2 xv zlib userland_GNU kernel_linux elibc_glibc" Unset: ASFLAGS, CTARGET, LANG, LC_ALL, LDFLAGS, LINGUAS, MAKEOPTS
same problem with konsole-3.5.0 Qt: 3.3.4 KDE: 3.5.0 Konsole: 1.6
I'm the maintainer of Konsole... I don't use Gentoo's KDE ebuilds since I have the SVN source trees. 1. Is this PPC only? I have only i386 systems. 2. Can this be reproduced on a non-hardened system easily? What would I need to recompile? Thread model: posix gcc version 3.4.4 (Gentoo 3.4.4-r1, ssp-3.4.4-1.0, pie-8.7.8)
re: 1: Konsole is built here with SSP on x86 no problem re. 2: If you have access to a non-hardened ppc system you can try: CFLAGS="-fstack-protector-all" emerge konsole All the hardened compiler does w.r.t. ssp is to switch on -fstack-protector-all by default (in most situations). The only thing you'll be missing is the support libraries (libstdc++ etc) which are built with the stack protector when gcc is built USE=hardened.
nixnut, is this still an issue for you? If so, provide information, please.
Ok, seems this too is a problem with a clashing -fno-strict-aliasing and ssp as described in bug 86857. Although solar mentions pie the problem seems more an ssp <-> -fno-strict-aliasing problem. If I compile konsole with ssp and -fno-strict-aliasing I will get the stack smashing error. Compiling with either the nossp gcc profile or filtering -fno-strict-aliasing will get me a functional konsole. Same with kontact. I haven't tested this with some of other kde packages (konqueror, kghostview, kstars and others) that seem to fall victim to the same problem, but it looks like ssp and -fno-strict-aliasing on ppc seem to not like each other. If you want more info please tell me what you need and how I can produce that info for you.
