lenovo ~ # cat gcc-log.c #include <stdio.h> #include <math.h> int main() { log(2); } lenovo ~ # gcc-4.2.4 -c -o gcc-log.o gcc-log.c lenovo ~ # gcc-4.3.6 -c -o gcc-log.o gcc-log.c gcc-log.c: In function 'main': gcc-log.c:7: internal compiler error: Segmentation fault: 11 Please submit a full bug report, with preprocessed source if appropriate. See <http://bugs.gentoo.org/> for instructions. lenovo ~ # gcc-4.4.6 -c -o gcc-log.o gcc-log.c gcc-log.c: In function 'main': gcc-log.c:7: internal compiler error: Segmentation fault: 11 Please submit a full bug report, with preprocessed source if appropriate. See <http://bugs.gentoo.org/> for instructions. lenovo ~ # gcc-4.5.3 -c -o gcc-log.o gcc-log.c gcc-log.c: In function 'main': gcc-log.c:7:2: internal compiler error: Segmentation fault: 11 Please submit a full bug report, with preprocessed source if appropriate. See <http://bugs.gentoo.org/> for instructions. lenovo ~ # cat gcc-log.c #include <stdio.h> #include <math.h> int main() { int two = 2; log(two); } lenovo ~ # gcc-4.2.4 -c -o gcc-log.o gcc-log.c lenovo ~ # gcc-4.3.6 -c -o gcc-log.o gcc-log.c lenovo ~ # gcc-4.4.6 -c -o gcc-log.o gcc-log.c lenovo ~ # gcc-4.5.3 -c -o gcc-log.o gcc-log.c lenovo ~ # cat gcc-log.c #include <stdio.h> #include <math.h> int main() { log(2); } lenovo ~ # gcc-4.2.4 -c -o gcc-log.o gcc-log.c lenovo ~ # gcc-4.3.6 -c -o gcc-log.o gcc-log.c lenovo ~ # gcc-4.4.6 -c -o gcc-log.o gcc-log.c lenovo ~ # gcc-4.5.3 -c -o gcc-log.o gcc-log.c
lenovo ~ # emerge --info Portage 2.2.0_alpha74 (default/bsd/fbsd/amd64/8.2, gcc-4.5.3, freebsd-lib-8.2-r1, 8.2-RELEASE amd64) ================================================================= System uname: FreeBSD-8.2-RELEASE-amd64-64bit-ELF Timestamp of tree: Sun, 13 Nov 2011 10:30:01 +0000 app-shells/bash: 4.2_p10 dev-lang/python: 2.7.2-r3, 3.2.2 dev-util/pkgconfig: 0.26 sys-apps/baselayout: 2.1 sys-apps/openrc: 0.9.4 sys-devel/autoconf: 2.68 sys-devel/automake: 1.9.6-r3, 1.11.1-r1 sys-devel/binutils: 2.20.1-r1 sys-devel/gcc: 4.2.4-r1, 4.3.6-r1, 4.4.6-r1, 4.5.3-r1 sys-devel/gcc-config: 1.5-r2 sys-devel/libtool: 2.4-r4 sys-devel/make: 3.82-r3 sys-freebsd/freebsd-lib: 8.2-r1 (virtual/os-headers) Repositories: gentoo gentoo-fbsd Installed sets: ACCEPT_KEYWORDS="amd64-fbsd x86-fbsd ~amd64-fbsd ~x86-fbsd" ACCEPT_LICENSE="* -@EULA" CBUILD="x86_64-gentoo-freebsd8.2" CFLAGS="-w -O2 -march=native -pipe" CHOST="x86_64-gentoo-freebsd8.2" CONFIG_PROTECT="/etc /usr/share/config" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/terminfo" CXXFLAGS="-w -O2 -march=native -pipe" DISTDIR="/usr/portage/distfiles" FEATURES="assume-digests binpkg-logs chflags distlocks ebuild-locks fixlafiles news parallel-fetch preserve-libs protect-owned sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch" FFLAGS="" GENTOO_MIRRORS="http://ftp.fsn.hu/pub/linux/distributions/gentoo/" LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,--allow-multiple-definition" LINGUAS="hu" MAKEOPTS="-j4" 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="/usr/local/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="X amd64-fbsd apng bzip2 cli cracklib crypt cxx dbus dri gif gmp iconv ipv6 java5 java6 jpeg kde lzma mmx modules multilib ncurses nopie nossp nptlonly ogg opengl optimization oss pcre png qt3support qt4 session sse sse2 sse3 sse4 sse4_1 ssl ssse3 strong-optimization symlink tcpd tftp threads tiff unicode usb vlc vorbis wimax wps xorg zfs zlib" CAMERAS="ptp2" ELIBC="FreeBSD" INPUT_DEVICES="keyboard mouse" KERNEL="FreeBSD" LINGUAS="hu" PHP_TARGETS="php5-3" RUBY_TARGETS="ruby18" USERLAND="BSD" VIDEO_CARDS="nv" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS
Sorry, in the comment#1 the third C file is: lenovo ~ # cat gcc-log.c #include <stdio.h> #include <math.h> int main() { log(1); } lenovo ~ # Interesting when log(1) and log(variable) is compile without error while log(2) segfaults gcc.
Hmmm, not comment#1 but Description field.
This is also segfaults >=gcc-4.3: #include <stdio.h> #include <math.h> int main() { pow(12.0,2.0); } If the base is 2, 4, 8, 16...2^x then not segfaults gcc: #include <stdio.h> #include <math.h> int main() { pow(16.0,2.0); } Next example not segfaults gcc too: #include <stdio.h> #include <math.h> int main() { int base = 12; int ex = 2; pow(base,ex); }
int one = 1; exp(one); // not segfaults gcc exp(0); // not segfaults gcc exp(1); // segfaults gcc
$ gcc -v Using built-in specs. Target: x86_64-gentoo-freebsd8.2 Configured with: /var/tmp/portage/sys-devel/gcc-4.2.4-r1/work/gcc-4.2.4/configure --prefix=/usr --bindir=/usr/x86_64-gentoo-freebsd8.2/gcc-bin/4.2.4 --includedir=/usr/lib/gcc/x86_64-gentoo-freebsd8.2/4.2.4/include --datadir=/usr/share/gcc-data/x86_64-gentoo-freebsd8.2/4.2.4 --mandir=/usr/share/gcc-data/x86_64-gentoo-freebsd8.2/4.2.4/man --infodir=/usr/share/gcc-data/x86_64-gentoo-freebsd8.2/4.2.4/info --with-gxx-include-dir=/usr/lib/gcc/x86_64-gentoo-freebsd8.2/4.2.4/include/g++-v4 --host=x86_64-gentoo-freebsd8.2 --build=x86_64-gentoo-freebsd8.2 --disable-altivec --disable-nls --with-system-zlib --disable-werror --enable-secureplt --enable-multilib --disable-libmudflap --disable-libssp --disable-libgomp --enable-checking=release --disable-libgcj --enable-languages=c,c++,treelang --enable-shared --enable-threads=posix --enable-__cxa_atexit Thread model: posix gcc version 4.2.4 (Gentoo 4.2.4-r1 p1.1) Installed gcc versions: 4.2.4-r1 (00:32:06 11/10/11) USE: (multilib -altivec -bootstrap -build -doc -fortran -gcj -gtk -hardened -libffi -mudflap -multislot -nls -nocxx -nptl -objc -objc++ -objc-gc -openmp -test -vanilla)
Can anyone try this on x86_64-gentoo-freebsd8.0? My first tip is the problem is in freebsd-lib-8.2. When I compile that some multiple definitions error are occured under linking.
I had the same problem with Gentoo/FreeBSD 8.2 but now it vanished...:( toolchain team, any idea or suggestions?
try using -fno-builtin. if that doesn't crash, try this simple code: $ cat test.c #include <gmp.h> #include <mpfr.h> main(){ mpfr_t t; mpfr_init2 (t, 200); mpfr_set_d (t, 1.0, GMP_RNDD); return mpfr_log (t, t, GMP_RNDD); } $ gcc test.c -lmpfr && ./a.out
-fno-builtin works. GCC didn't crashed. The simple mpfr code was works fine too with all GCC versions.
I was recompiled the whole system with "-fno-builtin" without error. What next?
building the system with -fno-builtin is a bad idea. that isn't a fix. it's a good data thing to know, but that's it. someone who has a crashy gcc has to debug it and find out why. the first step is to get gcc crashing again. then run it through gdb: gdb --args gcc -c gcc-log.c
I don't know how could I debug it. I never used gdb. The second thing is emerge strip the binaries and libraries. How can I prevent emerge to strip gcc?
http://www.gentoo.org/doc/en/bugzilla-howto.xml#doc_chap2
Ok, lets see: lenovo ~ # file /usr/x86_64-gentoo-freebsd8.2/gcc-bin/4.6.2/x86_64-gentoo-freebsd8.2-gcc /usr/x86_64-gentoo-freebsd8.2/gcc-bin/4.6.2/x86_64-gentoo-freebsd8.2-gcc: ELF 64-bit LSB executable, x86-64, version 1 (FreeBSD), dynamically linked (uses shared libs), for FreeBSD 8.2, not stripped lenovo ~ # emerge --info =gcc-4.6.2 Portage 2.2.0_alpha77 (default/bsd/fbsd/amd64/8.2, gcc-4.6.2, freebsd-lib-8.2-r1, 8.2-RELEASE amd64) ================================================================= System Settings ================================================================= System uname: FreeBSD-8.2-RELEASE-amd64-64bit-ELF Timestamp of tree: Sat, 26 Nov 2011 11:00:01 +0000 app-shells/bash: 4.2_p20 dev-lang/python: 2.7.2-r3, 3.2.2 dev-util/cmake: 2.8.6-r3 dev-util/pkgconfig: 0.26 sys-apps/baselayout: 2.1 sys-apps/openrc: 0.9.4 sys-devel/autoconf: 2.13, 2.68 sys-devel/automake: 1.9.6-r3, 1.11.1-r1 sys-devel/binutils: 2.20.1-r1 sys-devel/gcc: 4.2.4-r1, 4.5.3-r1, 4.6.2 sys-devel/gcc-config: 1.5-r2 sys-devel/libtool: 2.4.2 sys-devel/make: 3.82-r3 sys-freebsd/freebsd-lib: 8.2-r1 (virtual/os-headers) Repositories: gentoo gentoo-fbsd Installed sets: ACCEPT_KEYWORDS="amd64-fbsd x86-fbsd ~amd64-fbsd ~x86-fbsd" ACCEPT_LICENSE="* -@EULA" CBUILD="x86_64-gentoo-freebsd8.2" CFLAGS="-w -O1 -pipe -ggdb" CHOST="x86_64-gentoo-freebsd8.2" CONFIG_PROTECT="/etc /usr/share/config /usr/share/gnupg/qualified.txt" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/terminfo" CXXFLAGS="-w -O1 -pipe -ggdb" DISTDIR="/usr/portage/distfiles" FEATURES="assume-digests binpkg-logs chflags distlocks ebuild-locks fixlafiles news parallel-fetch preserve-libs protect-owned sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch" FFLAGS="" GENTOO_MIRRORS="http://ftp.fsn.hu/pub/linux/distributions/gentoo/" LDFLAGS="" LINGUAS="hu" MAKEOPTS="-j4" 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="/usr/local/portage" SYNC="rsync://rsync.gentoo.org/gentoo-portage" USE="X amd64-fbsd apng bzip2 cli consolekit cracklib crypt custom-cflags custom-optimization cxx dbus dri gif gmp iconv ipv6 java5 java6 jpeg kde lzma mmx modules multilib ncurses nopie nossp nptlonly ogg opengl optimization oss pam pcre png policykit python2 qt3support qt4 session sse sse2 sse3 sse4 sse4_1 ssl ssse3 strong-optimization svg symlink tcpd tftp threads tiff unicode usb vlc vorbis wimax wps xorg zfs zlib" CAMERAS="ptp2" ELIBC="FreeBSD" INPUT_DEVICES="keyboard mouse" KERNEL="FreeBSD" LINGUAS="hu" PHP_TARGETS="php5-3" RUBY_TARGETS="ruby18" USERLAND="BSD" VIDEO_CARDS="nv" Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS ================================================================= Package Settings ================================================================= sys-devel/gcc-4.6.2 was built with the following: USE="cxx (java5) (multilib) nopie nossp (-altivec) -bootstrap -build -doc (-fixed-point) -fortran (-gcj) -go -graphite -gtk -hardened (-libffi) -mudflap -multislot -nls -nocxx (-nptl) -objc -objc++ -objc-gc -openmp -test -vanilla" CFLAGS="-w -O2 -pipe -ggdb" CXXFLAGS="-w -O2 -pipe -ggdb" lenovo ~ # gdb --args gcc-4.6.2 -c -o gcc-log.o gcc-log.c GNU gdb (Gentoo 7.3.1 p1) 7.3.1 Copyright (C) 2011 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-gentoo-freebsd8.2". For bug reporting instructions, please see: <http://bugs.gentoo.org/>... Reading symbols from /usr/bin/gcc-4.6.2...done. (gdb) run Starting program: /usr/bin/gcc-4.6.2 -c -o gcc-log.o gcc-log.c gcc-log.c: In function 'main': gcc-log.c:7:2: internal compiler error: Segmentation fault: 11 Please submit a full bug report, with preprocessed source if appropriate. See <http://bugs.gentoo.org/> for instructions. [Inferior 1 (process 97292) exited with code 01] (gdb) bt No stack. (gdb) This is not too informational. Where could I wrong? Moreover strace is not an option on amd64-fbsd as at compile time it tells me: defs.h:133:2: error: #error "FreeBSD support is only for i386 arch right now."
Created attachment 293969 [details] verbose compile log for faulty target Come into my mind to compile the faulty C program with verbose flags. I made log but it is very interesting. The segfault code is at 0x0 address?
Ok, I think the problem is with >=mpfr-3.1.0 If I recompile gcc with mpfr-3.0.1 then everything is ok.
nice ... that's a good data point can you try installing mpfr-3.0.x and then emerging mpfr-3.1.x with FEATURES=test to see if that passes ?
Created attachment 294177 [details] mpfr-3.1.0 build log Bingo! ====================== 62 of 160 tests failed (1 test was not run) ====================== mpfr-3.0.1_p4-r1 passes on all of the tests.
thanks, i've dropped bsd from KEYWORDS: http://sources.gentoo.org/dev-libs/mpfr/mpfr-3.1.0.ebuild?r1=1.1&r2=1.2 next step i guess is to report to the mpfr project: http://websympa.loria.fr/wwsympa/arc/mpfr
I can't reproduce this on sparc-fbsd.
I got ======================= 128 of 160 tests failed (1 test was not run) ======================= and there're a lot of /libexec/ld-elf.so.1: /usr/tmp/portage/dev-libs/mpfr-3.1.0/work/mpfr-3.1.0/tests/ttrunc: Unsupported relocation type 37 in non-PLT relocations and segmentation faults. First, I should workaround this issue here :( missing -fPIC maybe?
% gdb ./tzeta <snip> Reading symbols from /usr/tmp/portage/dev-libs/mpfr-3.1.0/work/mpfr-3.1.0/tests/tzeta...done. (gdb) r Starting program: /usr/tmp/portage/dev-libs/mpfr-3.1.0/work/mpfr-3.1.0/tests/tzeta Program received signal SIGSEGV, Segmentation fault. 0x00000000 in ?? () (gdb) bt #0 0x00000000 in ?? () #1 0x280f1159 in mpfr_cache (dest=0xbfbfdbbc, cache=0x2808ea94, rnd=MPFR_RNDU) at cache.c:67 #2 0x280bde30 in mpfr_exp2 (y=0xbfbfddb4, x=0xbfbfdc60, rnd_mode=MPFR_RNDN) at exp2.c:124 #3 0x280cb284 in mpfr_pow (z=0xbfbfddb4, x=0xbfbfdd1c, y=0xbfbfdda4, rnd_mode=MPFR_RNDN) at pow.c:669 #4 0x280e0dbc in mpfr_ui_pow (y=0xbfbfddb4, n=8, x=0xbfbfdda4, rnd_mode=MPFR_RNDN) at ui_pow.c:36 #5 0x280ea494 in mpfr_zeta_part_a (sum=0xbfbfde80, s=0xbfbfe090, n=8) at zeta.c:123 #6 0x280eaeed in mpfr_zeta_pos (z=0xbfbfe080, s=0xbfbfe090, rnd_mode=MPFR_RNDN) at zeta.c:260 #7 0x280eb5b2 in mpfr_zeta (z=0xbfbfe080, s=0xbfbfe090, rnd_mode=MPFR_RNDN) at zeta.c:393 #8 0x08049911 in test1 () at tzeta.c:37 #9 0x0804b5a5 in main (argc=1, argv=0xbfbfe168) at tzeta.c:233 (gdb) up #1 0x280f1159 in mpfr_cache (dest=0xbfbfdbbc, cache=0x2808ea94, rnd=MPFR_RNDU) at cache.c:67 67 cache->inexact = (*cache->func) (cache->x, MPFR_RNDN); (gdb) list 62 63 /* Update the cache. */ 64 pold = prec; 65 /* no need to keep the previous value */ 66 mpfr_set_prec (cache->x, pold); 67 cache->inexact = (*cache->func) (cache->x, MPFR_RNDN); 68 } 69 70 /* now pold >= prec is the precision of cache->x */ 71 (gdb) p cache $1 = (struct __gmpfr_cache_s *) 0x2808ea94 (gdb) p cache->func $2 = (int (*)(mpfr_ptr, mpfr_rnd_t)) 0 Looks like this issue: http://websympa.loria.fr/wwsympa/arc/mpfr/2011-10/msg00015.html I'll try the patch here http://www.FreeBSD.org/cgi/query-pr.cgi?pr=161344&cat= and will commit it if it works fine.
The above patch solve SEGVs here. It was added to freebsd-libexec-8.2-r1. Please try it!
sounds like a bug in the freebsd core, so nothing left for toolchain. thanks guys for your help in tracking things down!
(In reply to comment #24) > The above patch solve SEGVs here. It was added to freebsd-libexec-8.2-r1. > Please try it! works here -> closing, thanks
