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Bug 467806 - sys-devel/gdb-7.6 with hardened gcc - ./common/linux-btrace.c:395:3: error: PIC register clobbered by ‘%ebx’ in ‘asm’
Summary: sys-devel/gdb-7.6 with hardened gcc - ./common/linux-btrace.c:395:3: error: P...
Status: RESOLVED FIXED
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: [OLD] Core system (show other bugs)
Hardware: x86 Linux
: Normal normal (vote)
Assignee: Gentoo Toolchain Maintainers
URL: http://sourceware.org/ml/gdb-patches/...
Whiteboard:
Keywords:
: 468390 (view as bug list)
Depends on:
Blocks:
 
Reported: 2013-04-29 00:14 UTC by iGentoo
Modified: 2013-06-23 02:15 UTC (History)
5 users (show)

See Also:
Package list:
Runtime testing required: ---


Attachments
gdb-7.6-build.log.tar.xz (gdb-7.6-build.log.tar.xz,92.67 KB, application/x-xz-compressed-tar)
2013-04-29 00:14 UTC, iGentoo
Details
cpuid-pic.patch (cpuid-pic.patch,1.23 KB, patch)
2013-04-29 08:11 UTC, Natanael Copa
Details | Diff

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Description iGentoo 2013-04-29 00:14:36 UTC
Created attachment 346844 [details]
gdb-7.6-build.log.tar.xz

i686-pc-linux-gnu-gcc -Wall -Wextra -ggdb -march=native -pipe -O3 -fno-tree-vectorize -frecord-gcc-switches   -I. -I. -I./common -I./config -DLOCALEDIR="\"/usr/share/locale\"" -DHAVE_CONFIG_H -I./../include/opcode -I./../opcodes/..  -I../bfd -I./../bfd -I./../include -I../libdecnumber -I./../libdecnumber  -I./gnulib/import -Ibuild-gnulib/import   -DTUI=1  -I/usr/include/python2.7 -I/usr/include/python2.7 -Wall -Wdeclaration-after-statement -Wpointer-arith -Wformat-nonliteral -Wno-pointer-sign -Wno-unused -Wunused-value -Wunused-function -Wno-switch -Wno-char-subscripts -Wmissing-prototypes -Wdeclaration-after-statement -Wempty-body  -c -o linux-btrace.o -MT linux-btrace.o -MMD -MP -MF .deps/linux-btrace.Tpo ./common/linux-btrace.c
./common/linux-btrace.c: In function ‘linux_supports_btrace’:
./common/linux-btrace.c:395:3: error: PIC register clobbered by ‘%ebx’ in ‘asm’
   __asm__ __volatile__ ("xorl   %%ebx, %%ebx;"
   ^
./common/linux-btrace.c:345:5: error: PIC register clobbered by ‘%ebx’ in ‘asm’
     __asm__ __volatile__ ("movl   $1, %%eax;"
     ^
make[2]: *** [linux-btrace.o] Error 1



Portage 2.2.0_alpha173 (hardened/linux/amd64/selinux, gcc-4.8.0, glibc-2.17, 3.8.10-pax.x86_64 x86_64)
=================================================================
                         System Settings
=================================================================
System uname: Linux-3.8.10-pax.x86_64-x86_64-Intel-R-_Core-TM-2_Quad_CPU_Q9300_@_2.50GHz-with-gentoo-2.2
KiB Mem:     6114284 total,   2616988 free
KiB Swap:   10484724 total,  10484724 free
Timestamp of tree: Sun, 28 Apr 2013 23:15:01 +0000
ld GNU gold (GNU Binutils 2.23.2) 1.11
ccache version 3.1.9 [disabled]
app-shells/bash:          4.2_p45
dev-java/java-config:     2.2.0
dev-lang/python:          2.5.4-r5, 2.6.8-r1, 2.7.4, 3.1.5-r1, 3.2.4, 3.3.1
dev-util/ccache:          3.1.9
dev-util/cmake:           2.8.10.2-r2
dev-util/pkgconfig:       0.28
sys-apps/baselayout:      2.2
sys-apps/openrc:          0.11.8
sys-apps/sandbox:         2.6-r1
sys-devel/autoconf:       2.13, 2.69
sys-devel/automake:       1.12.6, 1.13.1
sys-devel/binutils:       2.23.2
sys-devel/gcc:            4.6.4, 4.7.2-r1, 4.8.0
sys-devel/gcc-config:     1.8
sys-devel/libtool:        2.4.2
sys-devel/make:           3.82-r4
sys-kernel/linux-headers: 3.8 (virtual/os-headers)
sys-libs/glibc:           2.17
Repositories: gentoo systemd hardened-dev gnome custom
Installed sets: @local
ACCEPT_KEYWORDS="amd64 x86 ~amd64 ~x86"
ACCEPT_LICENSE="* -@EULA"
CBUILD="i686-pc-linux-gnu"
CFLAGS="-Wall -Wextra -ggdb -march=native -pipe -O3 -fno-tree-vectorize -frecord-gcc-switches"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/config /usr/share/gnupg/qualified.txt /usr/share/polkit-1/actions /var/bind"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/splash /etc/terminfo"
CXXFLAGS="-Wall -Wextra -ggdb -march=native -pipe -O3 -fno-tree-vectorize -frecord-gcc-switches"
DISTDIR="/var/portage/distfiles"
EMERGE_DEFAULT_OPTS="--keep-going --buildpkgonly"
FCFLAGS="-Wall -Wextra -ggdb -march=native -pipe -O3 -fno-tree-vectorize -frecord-gcc-switches"
FEATURES="assume-digests binpkg-logs buildpkg collision-protect config-protect-if-modified distlocks ebuild-locks fixlafiles merge-sync multilib-strict news parallel-fetch preserve-libs protect-owned sandbox selinux sesandbox sfperms split-elog split-log splitdebug strict test test-fail-continue unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync webrsync-gpg xattr"
FFLAGS="-Wall -Wextra -ggdb -march=native -pipe -O3 -fno-tree-vectorize -frecord-gcc-switches"
GENTOO_MIRRORS="http://mirrors.163.com/gentoo http://distfiles.gentoo.org"
LANG="en_US.UTF-8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,--hash-style=gnu -Wl,--icf=safe"
MAKEOPTS="V=1 -j10"
PKGDIR="/var/portage/packages-x86"
PORTAGE_BZIP2_COMMAND="lbzip2"
PORTAGE_COMPRESS="xz"
PORTAGE_COMPRESS_FLAGS="-9ef"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_EXTRA_OPTS="--ipv4"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/var/lib/layman/systemd /var/lib/layman/hardened-development /var/lib/layman/gnome /usr/local/portage"
SYNC="rsync://mirrors.ustc.edu.cn/gentoo-portage"
USE="X acl alsa amd64 audit bash-completion berkdb bzip2 c++0x cairo caps cli cracklib crypt custom-cflags cxx dbus dri ffmpeg gdbm gmp gnome gpm gtk gtk3 hardened iconv icu ipv6 jit jpeg jpeg2k justify lzma mmx modules mudflap multilib ncurses nls nptl open_perms opengl openmp orc pam pax_kernel pcre png pulseaudio qt4 readline selinux session sse sse2 ssl svg systemd tcpd threads tiff udev unicode urandom vim-syntax x86 xattr xinetd zlib" ABI_X86="x32 32 64" ALSA_CARDS="hda-intel" 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="authn_core authz_core socache_shmcb unixd 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 cgi cgid 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" CALLIGRA_FEATURES="kexi words flow plan sheets stage tables krita karbon braindump author" CAMERAS="ptp2" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" DRACUT_MODULES="btrfs caps dmsquash-live gensplash livenet lvm nfs ssh-client syslog systemd" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf superstar2 timing tsip tripmate tnt ubx" INPUT_DEVICES="evdev" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="en en_US zh zh_CN" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php5-3" PYTHON_SINGLE_TARGET="python2_7" PYTHON_TARGETS="pypy1_9 pypy2_0 python3_1 python3_2 python3_3 python2_5 python2_6 python2_7" QEMU_SOFTMMU_TARGETS="x86_64 arm mips64el ppc64" RUBY_TARGETS="ruby18 ruby19" USERLAND="GNU" VIDEO_CARDS="nouveau nvidia" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account"
USE_PYTHON="2.7-pypy-1.9 2.7-pypy-2.0 3.1 3.2 3.3 2.5 2.6 2.7"
Unset:  CPPFLAGS, CTARGET, INSTALL_MASK, LC_ALL, PORTAGE_BUNZIP2_COMMAND

=================================================================
                        Package Settings
=================================================================

sys-devel/gdb-7.6 was built with the following:
USE="client (multilib) nls python (selinux) server zlib -expat -multitarget -test -vanilla"
Comment 1 Natanael Copa 2013-04-29 08:11:58 UTC
Created attachment 346866 [details, diff]
cpuid-pic.patch

Same thing happens on Alpine Linux. It is a cpuid asm that clobbers ebx. The attached patch should fix it.
Comment 2 SpanKY gentoo-dev 2013-05-06 15:38:42 UTC
*** Bug 468390 has been marked as a duplicate of this bug. ***
Comment 3 SpanKY gentoo-dev 2013-05-06 18:54:13 UTC
Comment on attachment 346866 [details, diff]
cpuid-pic.patch

this probably works, but let's think bigger :).  this style is doomed to fail when people add more cpuid usage i think.
Comment 4 SpanKY gentoo-dev 2013-06-23 02:15:40 UTC
grabbed fix i committed upstream

http://sources.gentoo.org/gentoo/src/patchsets/gdb/7.6/10_all_gdb-7.6-cpuid.patch?rev=1.1