Bug 202026 – sys-devel/gdb-6.7.1 can not debug multi thread applications

• Status: RESOLVED DUPLICATE of bug 196031
• Product: Gentoo Linux

[Description Evgeniy Dushistov 2007-12-12 12:21:14 UTC]

If run under gdb any multi thread program,
"info threads" show nothing,
and "thread THREAD_NUMBER" do not switch between threads.

If run gdb under gdb, I can see that problem in
gdb/linux-thread-db.c,
in function check_for_thread_db,
td_ta_new_p return TD_NOLIBTHREAD,

td_ta_new_p is pointer to td_ta_new function from libthread_db.so,
which is part of glibc,

if look at td_ta_new function (nptl_db/td_ta_new.c),
it return TD_NOLIBTHREAD if lookup of nptl_version failed,

if look at /lib/libpthread.so is does not contains nptl_version,

so I remerge glibc with FEATURES="nostrip", and gdb becomes workings.

It would be good to solve it in some other way, do not string all stuff,
and only not touch nptl_version.

Reproducible: Always




Portage 2.1.3.19 (default-linux/x86/2007.0, gcc-4.1.2, glibc-2.6.1-r0, 2.6.22-gentoo-r9 i686)
=================================================================
System uname: 2.6.22-gentoo-r9 i686 AMD Athlon(tm) 64 X2 Dual Core Processor 4200+
Timestamp of tree: Thu, 29 Nov 2007 01:47:01 +0000
ccache version 2.4 [disabled]
app-shells/bash:     3.2_p17
dev-lang/python:     2.4.4-r6
dev-python/pycrypto: 2.0.1-r6
dev-util/ccache:     2.4-r7
sys-apps/baselayout: 1.12.9-r2
sys-apps/sandbox:    1.2.18.1-r2
sys-devel/autoconf:  2.13, 2.61-r1
sys-devel/automake:  1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10
sys-devel/binutils:  2.18-r1
sys-devel/gcc-config: 1.3.16
sys-devel/libtool:   1.5.24
virtual/os-headers:  2.6.22-r2
ACCEPT_KEYWORDS="x86"
CBUILD="i686-pc-linux-gnu"
CFLAGS="-O2 -march=i686 -mtune=athlon64 -fomit-frame-pointer -pipe"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/share/X11/xkb /usr/share/config"
CONFIG_PROTECT_MASK="/etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/revdep-rebuild /etc/splash /etc/terminfo /etc/texmf/web2c /etc/udev/rules.d"
CXXFLAGS="-O2 -march=i686 -mtune=athlon64 -fomit-frame-pointer -pipe"
DISTDIR="/usr/portage/distfiles"
FEATURES="distlocks metadata-transfer sandbox sfperms strict unmerge-orphans userfetch"
GENTOO_MIRRORS="http://distfiles.gentoo.org http://distro.ibiblio.org/pub/linux/distributions/gentoo"
LANG="ru_RU.UTF-8"
LC_ALL=""
LDFLAGS="-Wl,-O1 -Wl,--sort-common -Wl,--as-needed"
LINGUAS="en ru"
MAKEOPTS="-j3"
PKGDIR="/usr/portage/packages"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --delete-after --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages --filter=H_**/files/digest-*"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/portage/local/layman/nx /usr/portage/local/layman/toolchain /usr/portage/local/layman/vmware /home/evgeniy/portage"
SYNC="rsync://rsync.gentoo.org/gentoo-portage"
USE="3dnow 3dnowext X acl acpi alsa bash-completion berkdb bitmap-fonts cjk cli clisp cracklib crypt cups djvu doc dri dvi emacs gdbm gif gpm iconv isdnlog jpeg kde kdeenablefinal latex logrotate mailwrapper mbox midi mmx mp3 mudflap ncurses nls nptl nptlonly opengl openmp pam pcre perl png pppd python readline reflection samba session spell spl sse sse2 ssl tcpd tetex tiff truetype truetype-fonts type1 type1-fonts unicode vim-syntax vorbis win32codecs x86 xorg zlib" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1 emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mulaw multi null plug rate route share shm softvol" APACHE2_MODULES="actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" ELIBC="glibc" INPUT_DEVICES="keyboard mouse" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="en ru" USERLAND="GNU" VIDEO_CARDS="nvidia nv vga fbdev vesa"
Unset:  CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS

[Comment 1 Evgeniy Dushistov 2007-12-12 12:23:34 UTC]

s/do not string all stuff/strip all stuff/g

[Comment 2 SpanKY 2007-12-13 07:24:06 UTC]

*** This bug has been marked as a duplicate of bug 196031 ***