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Hi there, I've attached some very simplified (and *very* crap) source code that causes an exception error using gcc 3.1 (March 25th snapshot), specs are at bottom of mail. I'm at a loss at how to debug this - as the version of gdb I've got (5.1) doesn't like the SSE instructions, (or maybe gcc 3.1's object file format, I'm not sure which but it seems pretty flakey). compile with the following: $ g++ -L /usr/local/lib -msse math.cpp -o math.exe $ ./math.exe Start test set mUnitMatrix set_x set_y set_z set_w set_x set_y set_z set_w set_x set_y set_z set_w set_x set_y set_z set_w Illegal instruction (core dumped) Any help much appreciated! Regards --------------------------------- Q-Games, Dylan Cuthbert. http://www.q-games.com $ gcc -dumpspecs *asm: --traditional-format *asm_debug: %{g*:--gstabs} *asm_final: *asm_options: %a %Y %{c:%W{o*}%{!o*:-o %w%b%O}}%{!c:-o %d%w%u%O} *invoke_as: %{!S:-o %{|!pipe:%g.s} | as %(asm_options) %{!pipe:%g.s} %A } *cpp: %(cpp_cpu) posix:-D_POSIX_SOURCE} -D__stdcall=__attribute__((__stdcall__)) -D__cdec l=__attribute__((__cdecl__)) %{!ansi:-D_stdcall=__attribute__((__stdcall__)) -D_cdecl=__attribute__(( __cdecl__))} -D__declspec(x)=__attribute__((x)) -D__i386__ -D__i386 %{mno-win32:%{mno-cygwin: %emno-cygwin and mno-win32 are not compatible}} %{mno-cygwin:-D__MSVCRT__ -D__MINGW32__ %{mthreads:-D_MT} %{!nostdinc:-isystem /usr/include/mingw/g++-3 -isystem /usr/include/mingw/g++ -isystem /usr/local/include/mingw -idirafter /usr/local/i686-pc-cygwin/include/mingw -idirafter /usr/include/mingw}} %{!mno-cygwin:-D__CYGWIN32__ -D__CYGWIN__ %{!ansi:-Dunix} -D__unix__ -D__unix %{!nostdinc:-isystem /usr/local/include -idirafter /usr/local/i686-pc-cygwin/include -idirafter /usr/include}} %{mwin32|mno-cygwin:-DWIN32 -D_WIN32 -D__WIN32 -D__WIN32__ %{!ansi:-DWINNT}} %{!mno-win32:%{!nostdinc:-idirafter /usr/local/i686-pc-cygwin/include/w32api -idirafter /usr/include/w32api}} *cpp_options: %(cpp_unique_options) %{std*} %{d*} %{W*} %{w} %{pedantic*} %{fshow-column} %{fno-show-column} %{fsigned-char&funsigned-char} %{fleading-underscore} %{fno-leading-underscore} %{fno-operator-names} %{ftabstop=*} *cpp_unique_options: %{C:%{!E:%eGNU C does not support -C without using -E}} %{nostdinc*} %{C} %{v} %{I*} %{P} %{$} %I %{MD:-MD %W{!o: %b.d}%W{o*:%.d%*}} %{MMD:-MMD %W{!o: %b.d}%W{o*:%.d%*}} %{M} %{MM} %W{MF*} %{MG} %{MP} %{MQ*} %{MT*} %{!E:%{!M:%{!MM:%{MD|MMD:%{o*:-MQ %*}}}}} %{!no-gcc:-D__GNUC__=%v1 -D__GNUC_MINOR__=%v2 -D__GNUC_PATCHLEVEL__=%v3} %{!undef:%{!ansi:%{!std=*:%p}%{std=gnu*:%p}} %P} %{trigraphs} %{Os:-D__OPTIMIZE_SIZE__} %{O*:%{!O0:-D__OPTIMIZE__}} %{fno-inline|O0|!O*:-D__NO_INLINE__} %{ffast-math:-D__FAST_MATH__} %{fshort-wchar:-U__WCHAR_TYPE__ -D__WCHAR_TYPE__=short\ unsigned\ int} %{ffreestanding:-D__STDC_HOSTED__=0} %{fno-hosted:-D__STDC_HOSTED__=0} %{!ffreestanding:%{!fno-hosted:-D__STDC_HOSTED__=1}} %{remap} %{g3:-dD} %{H} %C %{D*&U*&A*} %{i*} %Z %i %{E|M|MM:%W{o*}} *trad_capable_cpp: %{traditional|ftraditional|traditional-cpp:trad}cpp0 *cc1: %(cc1_cpu) *cc1_options: %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}} %1 %{!Q:-quiet} -dumpbase %B %{d*} %{m*} %{a*} %{g*} %{O*} %{W*} %{w} %{pedantic*} %{std*} %{ansi} %{traditional} %{v:-version} %{pg:-p} %{p} %{f*} %{Qn:-fno-ident} %{--help:--help} %{--target-help:--target-help} %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}} %{fsyntax-only:-o %j} %{-param*} *cc1plus: *endfile: *link: -L/usr/local/i686-pc-cygwin/lib/w32api/ -L/usr/lib/w32api/ %{mwindows:--subsystem windows} %{mconsole:--subsystem console} %{shared: %{mdll: %eshared and mdll are not compatible}} %{shared: --shared} %{mdll:--dll} %{static:-Bstatic} %{!static:-Bdynamic} %{shared|mdll: -e %{mno-cygwin:_DllMainCRTStartup@12} %{!mno-cygwin:__cygwin_dll_entry@12}} --dll-search-prefix=cyg *lib: %{pg:-lgmon} %{!mno-cygwin:-lcygwin} %{mno-cygwin:%{mthreads:-lmingwthrd} -lmingw32} %{mwindows:-lgdi32 -lcomdl g32} -luser32 -lkernel32 -ladvapi32 -lshell32 *libgcc: %{mno-cygwin: %{mthreads:-lmingwthrd} -lmingw32} -lgcc %{mno-cygwin:-lmoldname -lmsvcrt} *startfile: %{shared|mdll: %{mno-cygwin:-L/usr/local/lib/mingw -L/usr/lib/mingw dllcrt2%O%s}} %{!shared: %{!mdll: %{!mno-cygwin:crt0%O%s} %{mno-cygwin:-L/usr/local/lib/mingw -L/usr/lib/mingw crt2%O%s} %{pg:gcrt0%O%s}}} *switches_need_spaces: *predefines: -D_X86_=1 -Asystem=winnt *cross_compile: 0 *version: 3.1 *multilib: . ; *multilib_defaults: *multilib_extra: *multilib_matches: *multilib_exclusions: *linker: collect2 *link_libgcc: %D *md_exec_prefix: *md_startfile_prefix: /usr/lib/ *md_startfile_prefix_1: *cpp_cpu_default: -D__tune_i686__ -D__tune_pentiumpro__ *cpp_cpu: %(cpp_cpu32) %(cpp_cpucommon) *cpp_cpu32: -Acpu=i386 -Amachine=i386 %{!ansi:%{!std=c*:%{!std=i*:-Di386}}} -D__i386 -D__i386__ %(cpp_cpu32sizet) *cpp_cpu64: -Acpu=x86_64 -Amachine=x86_64 -D__x86_64 -D__x86_64__ %(cpp_cpu64sizet) *cpp_cpu32sizet: *cpp_cpu64sizet: *cpp_cpucommon: %{march=i386:%{!mcpu*:-D__tune_i386__ }}%{march=i486:-D__i486 -D__i486__ %{!mcpu*:-D__tune_i486__ }}%{march=pentium|march=i586:-D__i586 -D__i586__ -D __pentium -D__pentium__ %{!mcpu*:-D__tune_i586__ -D__tune_pentium__ }}%{march=pentium-mmx:-D__i586 - D__i586__ -D__pentium -D__pentium__ -D__pentium__mmx__ %{!mcpu*:-D__tune_i586__ -D__tune_pentium__ -D__tune_pentium_mmx__}}%{march= pentiumpro|march=i686:-D__i686 -D__i686__ -D__pentiumpro -D__pentiumpro__ %{!mcpu*:-D__tune_i686__ -D__tune_pentiumpro__ }}%{march=k6:-D__k6 -D__k6__ %{!mcpu*:-D__tune_k6__ }}%{march=k6-2:-D__k6 -D__k6__ -D__k6_2__ %{!mcpu*:-D__tune_k6__ -D__tune_k6_2__ }}%{march=k6-3:-D__k6 -D__k6__ -D__k6 _3__ %{!mcpu*:-D__tune_k6__ -D__tune_k6_3__ }}%{march=athlon|march=athlon-tbird:- D__athlon -D__athlon__ %{!mcpu*:-D__tune_athlon__ }}%{march=athlon-4|march=athlon-xp|march=athlon-m p:-D__athlon -D__athlon__ -D__athlon_sse__ %{!mcpu*:-D__tune_athlon__ -D__tune_athlon_sse__ }}%{march=pentium4:-D__pent ium4 -D__pentium4__ %{!mcpu*:-D__tune_pentium4__ }}%{m386|mcpu=i386:-D__tune_i386__ }%{m486|mcpu =i486:-D__tune_i486__ }%{mpentium|mcpu=pentium|mcpu=i586|mcpu=pentium-mmx:-D __tune_i586__ -D__tune_pentium__ }%{mpentiumpro|mcpu=pentiumpro|mcpu=i686|cp u=pentium2|cpu=pentium3:-D__tune_i686__ -D__tune_pentiumpro__ }%{mcpu=k6|mcp u=k6-2|mcpu=k6-3:-D__tune_k6__ }%{mcpu=athlon|mcpu=athlon-tbird|mcpu=athlon- 4|mcpu=athlon-xp|mcpu=athlon-mp:-D__tune_athlon__ }%{mcpu=athlon-4|mcpu=athl on-xp|mcpu=athlon-mp:-D__tune_athlon_sse__ }%{mcpu=pentium4:-D__tune_pentium 4__ }%{march=athlon-tbird|march=athlon-xp|march=athlon-mp|march=pentium3|mar ch=pentium4:-D__SSE__ }%{march=pentium-mmx|march=k6|march=k6-2|march=k6-3|ma rch=athlon|march=athlon-tbird|march=athlon-4|march=athlon-xp|march=athlon-mp |march=pentium2|march=pentium3|march=pentium4: -D__MMX__ }%{march=k6-2|march =k6-3|march=athlon|march=athlon-tbird|march=athlon-4|march=athlon-xp|march=a thlon-mp: -D__3dNOW__ }%{march=athlon|march=athlon-tbird|march=athlon-4|marc h=athlon-xp|march=athlon-mp: -D__3dNOW_A__ }%{march=pentium4: -D__SSE2__ }%{ !march*:%{!mcpu*:%{!m386:%{!m486:%{!mpentium*:%(cpp_cpu_default)}}}}} *cc1_cpu: %{!mcpu*: %{m386:-mcpu=i386 %n`-m386' is deprecated. Use `-march=i386' or `-mcpu=i386' instead. } %{m486:-mcpu=i486 %n`-m486' is deprecated. Use `-march=i486' or `-mcpu=i486' instead. } %{mpentium:-mcpu=pentium %n`-mpentium' is deprecated. Use `-march=pentium' or `-mcpu=pentium' instead. } %{mpentiumpro:-mcpu=pentiumpro %n`-mpentiumpro' is deprecated. Use `-march=pentiumpro' or `-mcpu=pentiumpro' instead. }} %{mintel-syntax:-masm=intel %n`-mintel-syntax' is deprecated. Use `-masm=intel' instead. } %{mno-intel-syntax:-masm=att %n`-mno-intel-syntax' is deprecated. Use `-masm=att' instead. } *mingw_include_path: i686-pc-cygwin *link_command: %{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S: %(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r} %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}} %{static:} %{L*} %(link_libgcc) %o %{!nostdlib:%{!nodefaultlibs:%G %L %G}} %{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}
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math.cpp
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