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On 30.04.2017 13:23, Dan Johansson wrote: |
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> After upgrading GCC to 5.4.0 (from 4.9.3) I can no longer compile my |
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> sketches. |
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> |
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> At the end of the compile phase a get the following linker error: |
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> |
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> avr-gcc -Os -Wl,--gc-sections -mmcu=atmega32u4 -o |
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> /tmp/build881550966608502477.tmp/Blinky.cpp.elf |
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> /tmp/build881550966608502477.tmp/Blinky.cpp.o |
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> /tmp/build881550966608502477.tmp/FastLED313/hsv2rgb.cpp.o |
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> /tmp/build881550966608502477.tmp/FastLED313/wiring.cpp.o |
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> /tmp/build881550966608502477.tmp/FastLED313/colorutils.cpp.o |
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> /tmp/build881550966608502477.tmp/FastLED313/colorpalettes.cpp.o |
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> /tmp/build881550966608502477.tmp/FastLED313/lib8tion.cpp.o |
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> /tmp/build881550966608502477.tmp/FastLED313/FastLED.cpp.o |
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> /tmp/build881550966608502477.tmp/FastLED313/bitswap.cpp.o |
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> /tmp/build881550966608502477.tmp/FastLED313/power_mgt.cpp.o |
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> /tmp/build881550966608502477.tmp/FastLED313/noise.cpp.o |
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> /tmp/build881550966608502477.tmp/core.a |
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> -L/tmp/build881550966608502477.tmp -lm |
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> /usr/libexec/gcc/avr/ld: cannot find crtatmega32u4.o: No such file or |
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> directory |
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> /usr/libexec/gcc/avr/ld: cannot find -latmega32u4 |
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> collect2: error: ld returned 1 exit status |
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> |
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> And sure enough, there is not "crtatmega32u4.o" on this system (and only |
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> one file with "atmega32u4" in the filename: |
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> /usr/lib64/gcc/avr/5.4.0/device-specs/specs-atmega32u4). |
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> |
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> I have tried to reinstall the avr-crossdev-toolchain: |
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> crossdev -C avr |
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> USE="-openmp -hardened -sanitize -vtv" crossdev -s4 -S --target avr |
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> ln -s /usr/lib64/binutils/avr/2.26.1/ldscripts /usr/avr/lib/ldscript |
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> |
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> |
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> And just to be sure I have also re-emerged: |
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> dev-embedded/avrdude |
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> dev-embedded/arduino |
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> |
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> Any suggestions what I am missing? |
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> |
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|
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With last nights sync, avr-gcc-4.9.4 was pulled back in (slotted). |
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|
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Selecting 4.9.4 instead of 5.4.0 solves the issue, I can now compile for |
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avr again: |
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|
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$ avr-gcc -Os -Wl,--gc-sections -mmcu=atmega32u4 test.c |
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|
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$ file a.out |
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a.out: ELF 32-bit LSB executable, Atmel AVR 8-bit, version 1 (SYSV), |
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statically linked, not stripped |
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|
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-- |
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D/\N |
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