An error is generated on the C++ code of ncurses: # ./xemerge.sh coreutils Calculating dependencies... done! >>> Verifying ebuild manifests >>> Starting parallel fetch >>> Emerging (1 of 2) sys-libs/ncurses-5.7 for /usr/mipsel-unknown-linux-uclibc/ * ncurses-5.7.tar.gz RMD160 SHA1 SHA256 size ;-) ... a - ../obj_s/cursslk.o a - ../obj_s/cursesapp.o a - ../obj_s/cursesmain.o mipsel-unknown-linux-uclibc-ranlib ../lib/libncurses++.a mipsel-unknown-linux-uclibc-g++ -o demo ../obj_s/demo.o -L../lib -lncurses++ -L../lib -lform -lmenu -lpanel -lncurses -Wl,-O1 -Wl,-rpath,/var/tmp/portage/sys-libs/ncurses-5.7/work/narrowc/lib -I../c++ -I../include -I/var/tmp/portage/sys-libs/ncurses-5.7/work/ncurses-5.7/c++ -DHAVE_CONFIG_H -I/var/tmp/portage/sys-libs/ncurses-5.7/work/ncurses-5.7/c++/../include -I. -I../include -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -DXTSTRINGDEFINES -DNDEBUG -Os -pipe -W -Wall -Wabi -fabi-version=0 -Woverloaded-virtual -Wsign-promo -Wsynth -Wold-style-cast -Wcast-align -Wcast-qual -Wpointer-arith -Wshadow -Wundef -Wwrite-strings -Weffc++ -Wno-unused -fPIC /usr/lib/gcc/mipsel-unknown-linux-uclibc/4.4.0/libstdc++.so: undefined reference to `__tls_get_addr' /usr/libexec/gcc/mipsel-unknown-linux-uclibc/ld: warning: creating a DT_TEXTREL in object. collect2: ld returned 1 exit status make[1]: *** [demo] Error 1 make[1]: Leaving directory `/var/tmp/portage/sys-libs/ncurses-5.7/work/narrowc/c++' make: *** [all] Error 2
Portage 2.1.6.11 (uclibc/mips, gcc-4.4.0, unavailable, 2.6.29-gentoo-r3 i686) ================================================================= System uname: Linux-2.6.29-gentoo-r3-i686-Intel-R-_Core-TM-2_Duo_CPU_T7100_@_1.80GHz-with-glibc2.0 Timestamp of tree: Thu, 21 May 2009 18:45:01 +0000 distcc 3.0 i686-pc-linux-gnu [disabled] app-shells/bash: 3.2_p39 dev-java/java-config: 2.1.7 dev-lang/python: 2.5.4-r2 dev-python/pycrypto: 2.0.1-r8 dev-util/cmake: 2.6.2-r1 sys-apps/baselayout: 1.12.11.1 sys-apps/sandbox: 1.6-r2 sys-devel/autoconf: 2.13, 2.63 sys-devel/automake: 1.5, 1.6.3, 1.7.9-r1, 1.9.6-r2, 1.10.2 sys-devel/binutils: 2.18-r3 sys-devel/gcc-config: 1.4.1 sys-devel/libtool: 1.5.26 virtual/os-headers: 2.6.27-r2 ACCEPT_KEYWORDS="mips ~mips" CBUILD="i686-pc-linux-gnu" CFLAGS="-Os -pipe" CHOST="mipsel-unknown-linux-uclibc" CONFIG_PROTECT="/etc" CONFIG_PROTECT_MASK="/etc/env.d /etc/gconf" CXXFLAGS="-Os -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="autoconfig distlocks fixpackages nodoc noinfo noman parallel-fetch protect-owned sfperms strict unmerge-orphans userfetch" GENTOO_MIRRORS="http://distfiles.gentoo.org http://distro.ibiblio.org/pub/linux/distributions/gentoo" LANG="C" LDFLAGS="-Wl,-O1" MAKEOPTS="-j4" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/usr/mipsel-unknown-linux-uclibc/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages" PORTAGE_TMPDIR="/var/tmp" PORTDIR="/usr/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="minimal mips uclibc" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mmap_emul 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="uclibc" INPUT_DEVICES="keyboard" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" USERLAND="GNU" VIDEO_CARDS="dummy fbdev v4l" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK, LC_ALL, LINGUAS, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, PORTDIR_OVERLAY
Actually the environment created by "crossdev --target mipsel-unknown-linux-uclibc" is not able to compile c++ code whatsoever: # echo "main() { return 0; }" > nothing.cpp # mipsel-unknown-linux-uclibc-g++ ./nothing.cpp /usr/lib/gcc/mipsel-unknown-linux-uclibc/4.4.0/libstdc++.so: undefined reference to `__tls_get_addr' /usr/libexec/gcc/mipsel-unknown-linux-uclibc/ld: warning: creating a DT_TEXTREL in object. collect2: ld returned 1 exit status
Created attachment 192247 [details, diff] eclass/toolchain.eclass patch Builds gcc with --disable-tls for all *-uclibc CTARGETs (assuming that is the right choice)
This appears to be a known issue with tls and uclibc (see bug 204102). I don't believe the toolchain folks want to push --disable-tls on every ebuild (since that wasn't the solution selected for the other bug). Unfortunately I can't tell whether this is an issue with ncurses or with stdc++ and hence gcc (which seems to be the one with the undefined reference). I'm going to assign it to the Embedded team for now, but if this turns out to be an ncurses specific problem, then feel free to reassign it to them...
There are similarities, but its not really the same bug, nor is it ncurses specific. gcc is built with --enable-tls by default, although uclibc doesn't support this. This avoids any c++ to be compiled by the mipsel-unknown-linux-uclibc-g++ generated by crossdev. The supplied patch adds --disable-tls only when building gcc for uclibc targets.
for uClibc w/out NPTL, this is correct. but for NPTL users, we dont want to block them. ive leveraged the NPTL USE flag instead. http://sources.gentoo.org/eclass/toolchain.eclass?r1=1.400&r2=1.401
