http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46652
Summary: undefined reference to '__udivdi3' with
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: lto
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: d...@ics.uci.edu
When compiling emacs trunk using -O2 -flto -fuse-linker-plugin
(gcc configured to use gold)
This errors are emitted:
gcc -nostdlib -Demacs -DHAVE_CONFIG_H -I. -I/local/dann/emacs/src
-I/usr/include/gtk-2.0 -I/usr/lib/gtk-2.0/include -I/usr/include/atk-1.0
-I/usr/include/cairo -I/usr/include/pango-1.0 -I/usr/include/glib-2.0
-I/usr/lib/glib-2.0/include -I/usr/include/freetype2 -I/usr/include/alsa
-I/usr/include/librsvg-2 -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include
-I/usr/include/gtk-2.0 -I/usr/include/libxml2 -DORBIT2=1 -pthread
-I/usr/include/gconf/2 -I/usr/include/orbit-2.0 -I/usr/include/glib-2.0
-I/usr/lib/glib-2.0/include -MMD -MF deps/.d
-Wimplicit-function-declaration -Wold-style-definition
-Wdeclaration-after-statement -Wno-pointer-sign -O2 -g -flto
-fuse-linker-plugin -Wl,-znocombreloc \
-o temacs pre-crt0.o /usr/lib/crt1.o /usr/lib/crti.o dispnew.o frame.o
scroll.o xdisp.o menu.o xmenu.o window.o charset.o coding.o category.o ccl.o
character.o chartab.o bidi.o cm.o term.o terminal.o xfaces.o xterm.o xfns.o
xselect.o xrdb.o fontset.o xsmfns.o fringe.o image.o xsettings.o xgselect.o
gtkutil.o emacs.o keyboard.o macros.o keymap.o sysdep.o buffer.o filelock.o
insdel.o marker.o minibuf.o fileio.o dired.o filemode.o cmds.o casetab.o
casefiddle.o indent.o search.o regex.o undo.o alloc.o data.o doc.o editfns.o
callint.o eval.o floatfns.o fns.o font.o print.o lread.o syntax.o unexelf.o
bytecode.o process.o gnutls.o callproc.o region-cache.o sound.o atimer.o
doprnt.o strftime.o intervals.o textprop.o composite.o md5.o xml.o xfont.o
ftfont.o xftfont.o ftxfont.o terminfo.o lastfile.o vm-limit.o mktime.o
-lgtk-x11-2.0 -lgdk-x11-2.0 -latk-1.0 -lgdk_pixbuf-2.0 -lm -lpangocairo-1.0
-lpango-1.0 -lcairo -lgobject-2.0 -lgmodule-2.0 -ldl -lglib-2.0 -lpthread
-lSM -lICE -ltiff -ljpeg -lpng -lz -lm -lXpm -lX11 -lXrender -lXft -lXrender
-lfontconfig -lfreetype -lz -lX11 -lasound -lm -ldl -lpthread -lrsvg-2
-lgdk_pixbuf-2.0 -lm -lgobject-2.0 -lgmodule-2.0 -ldl -lglib-2.0 -lxml2 -lz
-lm -lgpm -lncurses -pthread -lgconf-2 -lORBit-2 -lm -lgmodule-2.0 -ldl
-lgthread-2.0 -lglib-2.0 -lselinux -lm -lgcc -lc -lgcc /usr/lib/crtn.o
/local/dann/GCC/lib/gcc/i686-pc-linux-gnu/4.6.0/../../../../i686-pc-linux-gnu/bin/ld:
/tmp/cc2kS2mG.ltrans6.ltrans.o: in function
system_process_attributes.7144:/local/dann/emacs/src/sysdep.c:2534: error:
undefined reference to '__udivdi3'
/local/dann/GCC/lib/gcc/i686-pc-linux-gnu/4.6.0/../../../../i686-pc-linux-gnu/bin/ld:
/tmp/cc2kS2mG.ltrans6.ltrans.o: in function
system_process_attributes.7144:/local/dann/emacs/src/sysdep.c:2539: error:
undefined reference to '__udivdi3'
/local/dann/GCC/lib/gcc/i686-pc-linux-gnu/4.6.0/../../../../i686-pc-linux-gnu/bin/ld:
/tmp/cc2kS2mG.ltrans6.ltrans.o: in function
system_process_attributes.7144:/local/dann/emacs/src/sysdep.c:2534: error:
undefined reference to '__udivdi3'
/local/dann/GCC/lib/gcc/i686-pc-linux-gnu/4.6.0/../../../../i686-pc-linux-gnu/bin/ld:
/tmp/cc2kS2mG.ltrans6.ltrans.o: in function
system_process_attributes.7144:/local/dann/emacs/src/sysdep.c:2539: error:
undefined reference to '__udivdi3'
collect2: ld returned 1 exit status
make: *** [temacs] Error 1
The function in question is:
static void
time_from_jiffies (unsigned long long tval, long hz,
time_t *sec, unsigned *usec)
{
unsigned long long ullsec;
*sec = tval / hz; <---- this is line 2534
ullsec = *sec;
tval -= ullsec * hz;
/* Careful: if HZ > 1 million, then integer division by it yields zero. */
if (hz <= 1000000)
*usec = tval * 1000000 / hz;
else
*usec = tval / (hz / 1000000);
}
