ppc assembler problem
I'm trying to compile gcc-3.3.6 on powerpc. I am having a heck of a time getting rid of the following problem. I've tried several combinations of *FLAGS as well as passing ASFLAGS. What is the sure fire way to pass flags to the assembler when compiling GCC? if [ -f stmp-dirs ]; then true; else touch stmp-dirs; fi /drives/work/src/gcc-bin/gcc/xgcc -B/drives/work/src/gcc-bin/gcc/ -B/exports/gcc33x/powerpc-unknown-linux-gnu/bin/ -B/exports/gcc33x/powerpc-unknown-linux-gnu/lib/ -isystem /exports/gcc33x/powerpc-unknown-linux-gnu/include -O2 -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -isystem ./include -fPIC -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -I. -I. -I../../gcc-cvs-3-3/gcc//gcc -I../../gcc-cvs-3-3/gcc//gcc/. -I../../gcc-cvs-3-3/gcc//gcc/config -I../../gcc-cvs-3-3/gcc//gcc/../include -fexceptions -c ../../gcc-cvs-3-3/gcc//gcc/unwind-dw2.c -o libgcc/./unwind-dw2.o /tmp/ccNkOiHW.s: Assembler messages: /tmp/ccNkOiHW.s:3142: Error: Unrecognized opcode: `stvx' /tmp/ccNkOiHW.s:3145: Error: Unrecognized opcode: `stvx' /tmp/ccNkOiHW.s:3148: Error: Unrecognized opcode: `stvx' /tmp/ccNkOiHW.s:3151: Error: Unrecognized opcode: `stvx' /tmp/ccNkOiHW.s:3154: Error: Unrecognized opcode: `stvx' /tmp/ccNkOiHW.s:3157: Error: Unrecognized opcode: `stvx' /tmp/ccNkOiHW.s:3160: Error: Unrecognized opcode: `stvx' /tmp/ccNkOiHW.s:3163: Error: Unrecognized opcode: `stvx' /tmp/ccNkOiHW.s:3166: Error: Unrecognized opcode: `stvx' /tmp/ccNkOiHW.s:3169: Error: Unrecognized opcode: `stvx' /tmp/ccNkOiHW.s:3172: Error: Unrecognized opcode: `stvx' /tmp/ccNkOiHW.s:3175: Error: Unrecognized opcode: `stvx' /tmp/ccNkOiHW.s:3177: Error: Unrecognized opcode: `mfvrsave' /tmp/ccNkOiHW.s:3181: Error: Unrecognized opcode: `mtvrsave' My configure: ../gcc-cvs-3-3/gcc//configure --with-gcc-version-trigger=/drives/work/src/gcc-cvs-3-3/gcc/gcc/version.c --host=powerpc-unknown-linux-gnu --prefix=/exports/gcc33x --disable-multilib --with-gcc --with-gnu-ld --with-gnu-as --enable-libada --enable-libgcj --enable-interpreter --enable-hash-synchronization --enable-shared --enable-clocale=gnu --with-cpu=7400 --enable-altivec --with-tls --with-nptl --enable-languages=all --with-libada --with-libbanshee --with-gmp --enable-version-specific-runtime-libs --enable-__cxa_atexit --enable-libbanshee --enable-libada --norecursion My make command: TUNE="-mtune=7400 -mcpu=7400 -maltivec -Wa,-m7400" make BOOT_CFLAGS="$TUNE -O2 -DWERROR=-Wno-error -pipe" CFLAGS_FOR_TARGET="$TUNE -O2" CXXFLAGS_FOR_TARGET="-O2" ASFLAGS="-m7400" Fred
Re: ppc assembler problem
On Tue, 16 Aug 2005, James E Wilson wrote: F. Heitkamp wrote: ../../gcc-cvs-3-3/gcc//gcc/unwind-dw2.c -o libgcc/./unwind-dw2.o /tmp/ccNkOiHW.s: Assembler messages: /tmp/ccNkOiHW.s:3142: Error: Unrecognized opcode: `stvx' You didn't mention the binutils version or how it was configured. It GNU assembler 2.16.91 20050809 Bintutils used the same configure script as what I used for gcc. I've been reading (googling) up on this problem as it seems I am not the first to have it. The problem also seems quite complicated. Binutils was configured with (among other options) "--with-cpu=7400" and "--enable-altivec". It can and does compile altivec instructions fine. It's just I can't get gcc and xgcc to pass that to the assembler. I thought the "--with-cpu" option was supposed to do that? i.e. default to a particular cpu. Looking at the specs file for the host compiler the default is -mppc. When I gave the "--with-cpu=7400" shouldn't that have made the default -m7400?. What about xgcc, how can I make that use the 7400 cpu? Maybe I'll also ask folks on the binutils mailing list. There is a TARGET_LIBGCC2_CFLAGS that is used when compiling libgcc2 instead of the normal CFLAGS_FOR_TARGET. You could add extra -m options here. That would solve your immediate problem, but you still would have a mismatch between gcc and binutils. It didn't work for me but I could have something else preventing it from working. Fred
