Along with still not respecting LDFLAGS as in bug #337788 I have the following issues reported after a re-compile of gcc after reading of some included patches and requests for us to re-install if we already had it. (dated two days ago ...since have re-synced and everything else was up to date) so did so this am. QA Notice: Package has poor programming practices which may compile │ │ fine but exhibit random runtime failures. │ │/usr/include/bits/string3.h:52:71: warning: call to void* __builtin___memcpy_chk(void*, const void*, long unsigned int, long unsigned │ │int) will always overflow destination buffer │ │/usr/include/bits/string3.h:52:71: warning: call to void* │ │__builtin___memcpy_chk(void*, const void*, long unsigned int, long unsigned │ │int) will always overflow destination buffer Reproducible: Always Actual Results: david@random ~ $ emerge --info gcc Portage 2.1.9.24 (default/linux/amd64/10.0, gcc-4.4.5, glibc-2.12.1-r3, 2.6.36-gentoo x86_64) ================================================================= System Settings ================================================================= System uname: Linux-2.6.36-gentoo-x86_64-AMD_Athlon-tm-_64_Processor_3200+-with-gentoo-2.0.1 Timestamp of tree: Tue, 23 Nov 2010 02:15:01 +0000 app-shells/bash: 4.1_p9 dev-java/java-config: 2.1.11-r2 dev-lang/python: 2.6.6-r1, 3.1.2-r4 dev-util/cmake: 2.8.1-r2 sys-apps/baselayout: 2.0.1-r1 sys-apps/openrc: 0.6.5 sys-apps/sandbox: 2.3-r1 sys-devel/autoconf: 2.13, 2.68 sys-devel/automake: 1.10.3, 1.11.1 sys-devel/binutils: 2.20.1-r1 sys-devel/gcc: 4.4.5, 4.5.1-r1 sys-devel/gcc-config: 1.4.1 sys-devel/libtool: 2.4 sys-devel/make: 3.82 virtual/os-headers: 2.6.35 (sys-kernel/linux-headers) ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="*" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-march=native -O2 -pipe" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /etc/portage/" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo" CXXFLAGS="-march=native -O2 -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="assume-digests binpkg-logs buildpkg distlocks fixlafiles fixpackages multilib-strict news parallel-fetch protect-owned sandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch" GENTOO_MIRRORS="ftp://ftp.gtlib.gatech.edu/pub/gentoo/ ftp://gentoo.chem.wisc.edu/gentoo/ http://mirrors.163.com/gentoo/ ftp://mirror.bih.net.ba/gentoo/" LDFLAGS="-Wl,--hash-style=gnu,-O1 -Wl,--as-needed" LINGUAS="en_US" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" 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" PORTDIR_OVERLAY=" " SYNC="rsync://rsync.us.gentoo.org/gentoo-portage" USE="acl alsa amd64 berkdb bzip2 cdr cli cracklib crypt cups cxx dri en fortran gdbm gpm gtk iconv ipv6 midi mmx modules mudflap multilib ncurses nls nptl nptlonly openmp pam pcre perl pic pppd python readline session sse sse2 ssl sysfs tcpd threads unicode xorg zlib" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci 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 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 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" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" 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 keyboard mouse" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="en_US" PHP_TARGETS="php5-2" RUBY_TARGETS="ruby18 ree18" USERLAND="GNU" VIDEO_CARDS="nv nvidia vesa nouveau" 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" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK, LANG, LC_ALL, MAKEOPTS, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS ================================================================= Package Settings ================================================================= sys-devel/gcc-4.4.5 was built with the following: USE="fortran gcj gtk mudflap (multilib) nls nptl openmp (-altivec) -bootstrap -build -doc (-fixed-point) -graphite (-hardened) (-libffi) -multislot (-n32) (-n64) -nocxx -nopie -nossp -objc -objc++ -objc-gc -test -vanilla" sys-devel/gcc-4.5.1-r1 was built with the following: USE="fortran gcj gtk mudflap (multilib) nls nptl openmp (-altivec) -bootstrap -build -doc (-fixed-point) -graphite (-hardened) (-libffi) -lto -multislot (-n32) (-n64) -nocxx -nopie -nossp -objc -objc++ -objc-gc -test -vanilla" david@random ~ $
Created attachment 255263 [details] build.log.bz2
the actual warning: In file included from /usr/include/string.h:642:0, from /var/tmp/portage/sys-devel/gcc-4.5.1-r1/work/gcc-4.5.1/libjava/java/lang/natClass.cc:15: In function ‘void* memcpy(void*, const void*, size_t)’, inlined from ‘java::lang::Object* parseAnnotationElement(java::lang::Class*, _Jv_Constants*, unsigned char*&, unsigned char*)’ at /var/tmp/portage/sys-devel/gcc-4.5.1-r 1/work/gcc-4.5.1/libjava/java/lang/natClass.cc:1168:60: /usr/include/bits/string3.h:52:71: warning: call to void* __builtin___memcpy_chk(void*, const void*, long unsigned int, long unsigned int) will always overflow destination buffer In function ‘void* memcpy(void*, const void*, size_t)’, inlined from ‘java::lang::Object* parseAnnotationElement(java::lang::Class*, _Jv_Constants*, unsigned char*&, unsigned char*)’ at /var/tmp/portage/sys-devel/gcc-4.5.1-r1/work/gcc-4.5.1/libjava/java/lang/natClass.cc:1184:60: /usr/include/bits/string3.h:52:71: warning: call to void* __builtin___memcpy_chk(void*, const void*, long unsigned int, long unsigned int) will always overflow destination buffer
Setting USE="-gcj" emerge gcc worked without the message. Disabling this flag is a temporary workaround
The removal of this flag by way of package.use was applied 'emerge -vuNDp world' showed pdftk as needing the flag hence it's use in the first place. did -p --depclean and removed pdftk finding no other problems to applications
*** Bug 363065 has been marked as a duplicate of this bug. ***
*** Bug 341491 has been marked as a duplicate of this bug. ***
I can reproduce the problem with the latest stable (4.8.4). So, since 4.5.1-r1 is not anymore in the tree I'd like to update the summary changing the version.
FTR I can reproduce with 4.9.3 too
(In reply to Agostino Sarubbo from comment #8) the code hasn't really ever changed, so the bug continues to apply to pretty much every version. upstream doesn't seem to care.
