Dear J.C. Pizarro, Thank you very much for your reply. BTW, could I to consult you with the following questions? 1. Could I use the "-msoft-point" flag to convert the float point operations to fixed point operations? Because some cpu do not support float point, so I want to convert all the float point operations of my program to fixed point operations. Would you like to help me? 2. Would you like to tell the mechanism or theory of the float emulation in gcc to me? 3. "msoft-point", which is using fixed point operation to emulate float point, so the operation is not identified with the fixed point, right? could I compile my program(double type variables is included it) and make it just contain fixed point operation? I look forwards your help. Any suggestions from you are appreciated. Thanks. Best wishes, Peter > > Apparently, __addd3f seems to be the last crashed softfloat's backdoor, > xDDDD, the same history repeats + or - in the past. > I don't know if it had a reputation or not. > > Dear L. Yan, you need to practice some tricks from below urls: > > __adddf3 undefined (search the word __adddf3): > > http://gcc.gnu.org/ml/gcc-help/2003-12/msg00072.html > http://gcc.gnu.org/ml/gcc-bugs/2006-12/msg01053.html > http://gcc.gnu.org/ml/gcc-bugs/2006-12/msg00441.html > http://gcc.gnu.org/ml/gcc/2002-10/msg00481.html > http://gcc.gnu.org/ml/gcc/2002-10/msg00482.html > http://gcc.gnu.org/ml/gcc/2002-10/msg00483.html > http://gcc.gnu.org/ml/gcc/2002-10/msg00485.html > http://gcc.gnu.org/ml/gcc/2002-11/msg00568.html > http://gcc.gnu.org/ml/gcc-patches/2003-08/txt00013.txt > http://gcc.gnu.org/ml/gcc-regression/2000-07/msg00065.html > http://gcc.gnu.org/ml/gcc/2002-11/msg00569.html > http://gcc.gnu.org/ml/gcc/2002-11/msg00570.html > http://sourceware.org/ml/crossgcc/1999-q3/msg00457.html > http://sourceware.org/ml/crossgcc/1999-q3/msg00458.html > http://sourceware.org/ml/crossgcc/1999-q3/msg00454.html > > > __floatsidf undefined (search the word __floatsidf): > > http://gcc.gnu.org/ml/gcc-bugs/2004-06/msg01219.html > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15873 > http://gcc.gnu.org/ml/gcc-bugs/2004-08/msg01413.html > http://gcc.gnu.org/ml/gcc-bugs/2004-06/msg00907.html > http://gcc.gnu.org/ml/gcc-bugs/2004-06/msg00908.html > http://gcc.gnu.org/ml/gcc-bugs/2004-06/msg01032.html > http://gcc.gnu.org/ml/gcc-patches/2005-09/msg01093.html > http://gcc.gnu.org/ml/gcc-bugs/2005-11/msg03231.html > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24998 > http://gcc.gnu.org/ml/gcc-bugs/2005-11/msg03233.html > http://gcc.gnu.org/ml/gcc-help/2005-05/msg00316.html > http://gcc.gnu.org/ml/gcc-help/2005-05/msg00310.html > http://gcc.gnu.org/ml/gcc-help/2005-05/msg00315.html > http://gcc.gnu.org/ml/gcc/2002-11/msg00568.html > http://gcc.gnu.org/ml/gcc/2002-11/msg00569.html > http://gcc.gnu.org/ml/gcc/2002-11/msg00570.html > http://gcc.gnu.org/ml/gcc/1997-12/msg01049.html > http://gcc.gnu.org/ml/gcc/1997-12/msg01063.html > http://gcc.gnu.org/ml/gcc-bugs/2005-11/msg03227.html > http://gcc.gnu.org/ml/gcc/2007-07/msg00882.html > http://gcc.gnu.org/ml/gcc/2005-09/msg00431.html > http://gcc.gnu.org/ml/gcc/2005-09/msg00432.html > http://www.cygwin.com/ml/crossgcc/1999-q1/msg00083.html > http://www.nabble.com/insmod-ppp-mppe-gives-unresolved-symbol-__floatsidf-and-__adddf3-t1457935.html > http://discussion.forum.nokia.com/forum/showthread.php?t=40990 > http://sourceware.org/ml/crossgcc/2002-05/msg00011.html > http://sourceware.org/ml/crossgcc/2002-05/msg00012.html > http://sourceware.org/ml/crossgcc/2002-05/msg00017.html > http://sourceware.org/ml/crossgcc/2002-05/msg00020.html > http://sourceware.org/ml/crossgcc/2002-05/msg00084.html > > > __fixdfsi undefined (search the word __fixdfsi): > > http://gcc.gnu.org/ml/gcc-help/2005-05/msg00316.html > http://gcc.gnu.org/ml/gcc/2002-11/msg00568.html > http://gcc.gnu.org/ml/gcc/2002-11/msg00569.html > http://gcc.gnu.org/ml/gcc/2002-11/msg00570.html > http://osdir.com/ml/lib.uclibc.general/2003-03/msg00101.html > http://busybox.net/lists/uclibc/2003-March/005895.html > http://www.omnigroup.com/mailman/archive/macosx-admin/1999-November/005606.html > http://www.omnigroup.com/mailman/archive/macosx-admin/1999-November/005578.html > http://opengrok.creo.hu/openbsd/s?defs=__fixdfsi > http://opengrok.creo.hu/openbsd/search?q=__fixdfsi > http://www.busybox.net/lists/uclibc/2002-November/004938.html > http://stuff.mit.edu/afs/sipb/project/pilot/src/gnusrc/fpgnulib.c > http://sourceware.org/ml/crossgcc/2002-05/msg00011.html > http://www.cygwin.com/ml/newlib/2007/msg00929.html > http://mhonarc.axis.se/dev-etrax/msg05341.html > http://www.srcdoc.com/linux_2.2.26/floatlib_8c.html > http://forums.ni.com/attachments/ni/beta2/100/1/Linker%20error%20stream.txt > > J.C. Pizarro >
