I want try to use gcc 4.9. Starting from a working toolchain of Fedora 19 with avr-gcc 4.8; I get the last snapshot and buid it inside rpm build system with: ../gcc-4.9/configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --target=avr --enable-languages=c,c++ - -disable-nls --disable-libssp --with-system-zlib --enable-version-specific-runtime-libs --with-pkgversion=Fedora 4.9-1.fc19 --with-bugurl=https://bugzilla.redhat.com/
I install the rpm and compile works well but at link stage: /usr/bin/avr-gcc -mmcu=atmega328p -Wl,--gc-sections -Wl,-Map -Wl,t.map -o .build/uno/firmware.elf .build/uno/src/helloworld_rx.o -v Using built-in specs. COLLECT_GCC=/usr/bin/avr-gcc COLLECT_LTO_WRAPPER=/usr/libexec/gcc/avr/4.9.0/lto-wrapper Target: avr Configured with: ../gcc-4.9/configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --target=avr --enable-languages=c,c++ --disable-nls --disable-libssp --with-system-zlib --enable-version-specific-runtime-libs --with-pkgversion='Fedora 4.9-1.fc19' --with-bugurl=https://bugzilla.redhat.com/ Thread model: single gcc version 4.9.0 20140316 (experimental) (Fedora 4.9-1.fc19) COMPILER_PATH=/usr/libexec/gcc/avr/4.9.0/:/usr/libexec/gcc/avr/4.9.0/:/usr/libexec/gcc/avr/:/usr/lib/gcc/avr/4.9.0/:/usr/lib/gcc/avr/:/usr/lib/gcc/avr/4.9.0/../../../../avr/bin/ LIBRARY_PATH=/usr/lib/gcc/avr/4.9.0/avr5/:/usr/lib/gcc/avr/4.9.0/../../../../avr/lib/avr5/:/usr/lib/gcc/avr/4.9.0/:/usr/lib/gcc/avr/4.9.0/../../../../avr/lib/ COLLECT_GCC_OPTIONS='-mmcu=atmega328p' '-o' '.build/uno/firmware.elf' '-v' /usr/libexec/gcc/avr/4.9.0/collect2 -plugin /usr/libexec/gcc/avr/4.9.0/liblto_plugin.so -plugin-opt=/usr/libexec/gcc/avr/4.9.0/lto-wrapper -plugin-opt=-fresolution=/tmp/ccaF7CSb.res -plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lm -plugin-opt=-pass-through=-lc -m avr5 -Tdata 0x800100 -o .build/uno/firmware.elf /usr/lib/gcc/avr/4.9.0/../../../../avr/lib/avr5/crtm328p.o -L/usr/lib/gcc/avr/4.9.0/avr5 -L/usr/lib/gcc/avr/4.9.0/../../../../avr/lib/avr5 -L/usr/lib/gcc/avr/4.9.0 -L/usr/lib/gcc/avr/4.9.0/../../../../avr/lib --gc-sections -Map t.map .build/uno/src/helloworld_rx.o --start-group -lgcc -lm -lc --end-group /usr/lib/gcc/avr/4.9.0/../../../../avr/bin/ld: skipping incompatible /usr/lib/gcc/avr/4.9.0/avr5/libgcc.a when searching for -lgcc /usr/lib/gcc/avr/4.9.0/../../../../avr/bin/ld: skipping incompatible /usr/lib/gcc/avr/4.9.0/libgcc.a when searching for -lgcc /usr/lib/gcc/avr/4.9.0/../../../../avr/bin/ld: cannot find -lgcc collect2: error: ld returned 1 exit status objdump results: avr-objdump -f .build/uno/src/helloworld_rx.o .build/uno/src/helloworld_rx.o: file format elf32-avr architecture: avr:5, flags 0x00000011: HAS_RELOC, HAS_SYMS start address 0x00000000 avr-objdump -f /usr/lib/gcc/avr/4.9.0/avr5/libgcc.a|head -n 20 In archive /usr/lib/gcc/avr/4.9.0/avr5/libgcc.a: _absvhi2.o: file format elf32-little architecture: UNKNOWN!, flags 0x00000011: HAS_RELOC, HAS_SYMS start address 0x00000000 _addvhi3.o: file format elf32-avr architecture: avr:5, flags 0x00000011: HAS_RELOC, HAS_SYMS start address 0x00000000 _subvhi3.o: file format elf32-avr architecture: avr:5, flags 0x00000011: HAS_RELOC, HAS_SYMS start address 0x00000000 Trying to recompile binutils and libc do not help. Any suggestions? avr-gcc --version avr-gcc (Fedora 4.9-1.fc19) 4.9.0 20140316 (experimental) Copyright (C) 2014 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. rpm -q avr-binutils avr-binutils-2.23.1-2.fc19.x86_64 rpm -q avr-libc avr-libc-1.8.0-5.fc19.noarch Paolo _______________________________________________ AVR-GCC-list mailing list AVR-GCC-list@nongnu.org https://lists.nongnu.org/mailman/listinfo/avr-gcc-list
