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wholder opened this issue Nov 15, 2019 · 4 comments
Open

ATTiny10 and Toolchain 7.3.0 #65

wholder opened this issue Nov 15, 2019 · 4 comments

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@wholder
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wholder commented Nov 15, 2019 •
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Arduino recently upgraded the AVR toolchain in the macOS version from 32 bit 5.4.0 to 64 bit 7.3.0 in order to support macOs Catalina, which is 64 bit only. However, the 7.3.0 toolchain has an odd problem when trying to link code compiled for the attiny10 series of microcontrollers. To investigate this, I downloaded the Mac version of the toolchain from:

http://downloads.arduino.cc/tools/avr-gcc-7.3.0-atmel3.6.1-arduino5-x86_64-apple-darwin14.tar.bz2

And used it to compile this simple test program:

#include <avr/io.h>
int main () {
    DDRB |= (1 << PB0);
  while (true) {
        PORTB |= (1 << PB0);
        PORTB &= ~(1 << PB0);
    }
}

I can use the 7.3.0 toolchain to compile and link this code for the attiny85, like this:

  ./avr/bin/avr-g++ -c -g -Os -w -std=gnu++11 -mmcu=attiny85 -I ./ test.cpp -o test.cpp.o
  ./avr/bin/avr-gcc -w -Os -g -mmcu=attiny85 -o test.elf test.cpp.o -L ./ -lm

and it works just fine. But, if i change the -mmcu switch from attiny85 to attiny10, the compile seems to work fine, but the command to link the code (2nd line) spews out the following errors:

/Users/wholder/Desktop/temp/avr/bin/../lib/gcc/avr/7.3.0/../../../../avr/bin/ld: cannot find crtattiny10.o: No such file or directory
/Users/wholder/Desktop/temp/avr/bin/../lib/gcc/avr/7.3.0/../../../../avr/bin/ld: skipping incompatible /Users/wholder/Desktop/temp/avr/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/libm.a when searching for -lm
/Users/wholder/Desktop/temp/avr/bin/../lib/gcc/avr/7.3.0/../../../../avr/bin/ld: cannot find -lm
/Users/wholder/Desktop/temp/avr/bin/../lib/gcc/avr/7.3.0/../../../../avr/bin/ld: skipping incompatible /Users/wholder/Desktop/temp/avr/bin/../lib/gcc/avr/7.3.0/libgcc.a when searching for -lgcc
/Users/wholder/Desktop/temp/avr/bin/../lib/gcc/avr/7.3.0/../../../../avr/bin/ld: cannot find -lgcc
/Users/wholder/Desktop/temp/avr/bin/../lib/gcc/avr/7.3.0/../../../../avr/bin/ld: skipping incompatible /Users/wholder/Desktop/temp/avr/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/libm.a when searching for -lm
/Users/wholder/Desktop/temp/avr/bin/../lib/gcc/avr/7.3.0/../../../../avr/bin/ld: cannot find -lm
/Users/wholder/Desktop/temp/avr/bin/../lib/gcc/avr/7.3.0/../../../../avr/bin/ld: skipping incompatible /Users/wholder/Desktop/temp/avr/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/libc.a when searching for -lc
/Users/wholder/Desktop/temp/avr/bin/../lib/gcc/avr/7.3.0/../../../../avr/bin/ld: cannot find -lc
/Users/wholder/Desktop/temp/avr/bin/../lib/gcc/avr/7.3.0/../../../../avr/bin/ld: cannot find -lattiny10
collect2: error: ld returned 1 exit status

Curiously, the file crtattiny10.o is available in the toolchain at path: ./avr/lib/avrtiny/crtattiny10.o

Can anyone help me figure out what's going on here?

Wayne
@facchinm
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Following up from the mailing list, better to keep these things near the code

I investigated a bit and the problem is:

  • atpacks don't provide libgcc, which gets generated by the toolchain build phase, but only libc and libm
  • specifying avrtiny folder with -L finds at least compatible libc and crt*

Said that, there isn't much we can do except waiting for the devices to be upstreamed. As @WestfW correctly noted, Microchip only provides GCC 5.4.0 as "latest", but we know it has tons of issues with lto so we couldn't really use their infrastructure...

@enekochan
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I was having the same problem using the toolchain (version 7.3.0-atmel3.6.1-arduino7) provided by Arduino 1.9.0 (beta). Then I downloaded the toolchain from Microchip and it worked fine. Hope this helps.

@wholder
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wholder commented Jul 30, 2020 via email

sleemanj added a commit to sleemanj/optiboot that referenced this issue Oct 10, 2020
@sleemanj
Minimal update for Tiny distribution to work with IDE 1.8.13 Programm…
1293cda 
…ers menu.

Note that toolsDependencies (in the json) has been set to hold avr-gcc at 5.4.0 due to arduino/toolchain-avr#65

Lightly tested only.
mar0x added a commit to mar0x/toolchain-avr that referenced this issue Apr 1, 2021
@mar0x
Fixing patch format.
3b2edec 
This should enable missing 'avrxmega7' and 'avrtiny' families support.

This closes arduino#65 issue on GitHub.
@mar0x mar0x mentioned this issue Apr 1, 2021
Open
@sleemanj sleemanj mentioned this issue Aug 31, 2021
Open
sleemanj added a commit to sleemanj/optiboot that referenced this issue Mar 10, 2022
@sleemanj
Generate an __DEV__ version of the package json, allow for packages t…
f297339 
…o use multiple gcc dependencies for a given version.

The __DEV__ json file can be added as a file:// url to extra board manager urls for testing.

The individual package jsons can have instead of "version" "version-build", and the value of this shall be a hyphen suffixed version, eg 2020-10-03-gcc5.4 or 2020-10-03-gcc7.3

This is necessary so we can support both gcc 5.4 and 7.3, 7.3 is broken for 4/5/9/10 due to

  arduino/toolchain-avr#65
@per1234 per1234 mentioned this issue Sep 14, 2024
Closed
@WestfW
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WestfW commented Sep 15, 2024

I have been looking into this recently, not that I've come up with anything substantial.
I'll note that the Microchip distribution of avr-gcc IS now updated to 7.3, and supports the avrtiny devices by default (without needing to resort to definitions in a "pack")

I am unable to find any suspicious differences between the Microchip gcc 7.3 and the Arduino gcc 7.3 :-(
The libraries are there, but for some reason link isn't finding them. Looking at "verbose" output from the compile, compared with a successful build, I see the "avrtiny" directories are missing from the library paths, and there's no -imultilib avrtiny in the cc1plus command. But I don't know why...

Microchip avr-g++

Using built-in specs.
Reading specs from /usr/local/avr8-Microchip-3.7.0/bin/../lib/gcc/avr/7.3.0/device-specs/specs-attiny10
COLLECT_GCC=avr-g++
COLLECT_LTO_WRAPPER=/usr/local/avr8-Microchip-3.7.0/bin/../libexec/gcc/avr/7.3.0/lto-wrapper
Target: avr
Configured with: /Volumes/build_disk/jenkins_mcu/workspace/avr8-gnu-toolchain-osx/src/gcc/configure LDFLAGS=-L/Volumes/build_disk/jenkins_mcu/workspace/avr8-gnu-toolchain-osx/avr8-gnu-toolchain-darwin_x86_64-hostlibs/lib CPPFLAGS= --target=avr --host=x86_64-apple-darwin17.0.0 --build=x86_64-apple-darwin17.0.0 --prefix=/Volumes/build_disk/jenkins_mcu/workspace/avr8-gnu-toolchain-osx/avr8-gnu-toolchain-darwin_x86_64 --libdir=/Volumes/build_disk/jenkins_mcu/workspace/avr8-gnu-toolchain-osx/avr8-gnu-toolchain-darwin_x86_64/lib --enable-languages=c,c++ --with-dwarf2 --enable-doc --disable-shared --disable-libada --disable-libssp --disable-nls --with-avrlibc=yes --with-mpfr=/Volumes/build_disk/jenkins_mcu/workspace/avr8-gnu-toolchain-osx/avr8-gnu-toolchain-darwin_x86_64-hostlibs --with-gmp=/Volumes/build_disk/jenkins_mcu/workspace/avr8-gnu-toolchain-osx/avr8-gnu-toolchain-darwin_x86_64-hostlibs --with-mpc=/Volumes/build_disk/jenkins_mcu/workspace/avr8-gnu-toolchain-osx/avr8-gnu-toolchain-darwin_x86_64-hostlibs --with-pkgversion=AVR_8_bit_GNU_Toolchain_3.7.0_518 --with-bugurl=http://www.microchip.com
Thread model: single
gcc version 7.3.0 (AVR_8_bit_GNU_Toolchain_3.7.0_518) 
COLLECT_GCC_OPTIONS='-Os' '-g'  '-v' '-specs=device-specs/specs-attiny10' '-mmcu=avrtiny'

 /usr/local/avr8-Microchip-3.7.0/bin/../libexec/gcc/avr/7.3.0/cc1plus -quiet -v -imultilib avrtiny -iprefix /usr/local/avr8-Microchip-3.7.0/bin/../lib/gcc/avr/7.3.0/ -D__AVR_ATtiny10__ -D__AVR_DEVICE_NAME__=attiny10 foo.cpp -mn-flash=1 -mno-skip-bug -mabsdata -quiet -dumpbase foo.cpp -mmcu=avrtiny -auxbase foo -g -Os -version -mn-flash=1 -mno-skip-bug -mabsdata -fno-rtti -fno-enforce-eh-specs -fno-exceptions -o /var/folders/gv/zn3wcml52jq0vvjnd95j8g6h0000gp/T//ccgdAOQI.s

GNU C++14 (AVR_8_bit_GNU_Toolchain_3.7.0_518) version 7.3.0 (avr)
	compiled by GNU C version 5.5.0, GMP version 5.0.2, MPFR version 3.0.0, MPC version 0.9, isl version none
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
ignoring nonexistent directory "/usr/local/avr8-Microchip-3.7.0/bin/../lib/gcc/avr/7.3.0/../../../../avr/include/c++/7.3.0"
ignoring nonexistent directory "/usr/local/avr8-Microchip-3.7.0/bin/../lib/gcc/avr/7.3.0/../../../../avr/include/c++/7.3.0/avr/avrtiny"
ignoring nonexistent directory "/usr/local/avr8-Microchip-3.7.0/bin/../lib/gcc/avr/7.3.0/../../../../avr/include/c++/7.3.0/backward"
ignoring nonexistent directory "/usr/local/avr8-Microchip-3.7.0/bin/../lib/gcc/avr/7.3.0/../../../../avr/sys-include"
ignoring nonexistent directory "/usr/local/avr8-Microchip-3.7.0/bin/../lib/gcc/../../lib/gcc/avr/7.3.0/../../../../avr/include/c++/7.3.0"
ignoring nonexistent directory "/usr/local/avr8-Microchip-3.7.0/bin/../lib/gcc/../../lib/gcc/avr/7.3.0/../../../../avr/include/c++/7.3.0/avr/avrtiny"
ignoring nonexistent directory "/usr/local/avr8-Microchip-3.7.0/bin/../lib/gcc/../../lib/gcc/avr/7.3.0/../../../../avr/include/c++/7.3.0/backward"
ignoring duplicate directory "/usr/local/avr8-Microchip-3.7.0/bin/../lib/gcc/../../lib/gcc/avr/7.3.0/include"
ignoring duplicate directory "/usr/local/avr8-Microchip-3.7.0/bin/../lib/gcc/../../lib/gcc/avr/7.3.0/include-fixed"
ignoring nonexistent directory "/usr/local/avr8-Microchip-3.7.0/bin/../lib/gcc/../../lib/gcc/avr/7.3.0/../../../../avr/sys-include"
ignoring duplicate directory "/usr/local/avr8-Microchip-3.7.0/bin/../lib/gcc/../../lib/gcc/avr/7.3.0/../../../../avr/include"
#include "..." search starts here:
#include <...> search starts here:
 /usr/local/avr8-Microchip-3.7.0/bin/../lib/gcc/avr/7.3.0/include
 /usr/local/avr8-Microchip-3.7.0/bin/../lib/gcc/avr/7.3.0/include-fixed
 /usr/local/avr8-Microchip-3.7.0/bin/../lib/gcc/avr/7.3.0/../../../../avr/include
End of search list.
GNU C++14 (AVR_8_bit_GNU_Toolchain_3.7.0_518) version 7.3.0 (avr)
	compiled by GNU C version 5.5.0, GMP version 5.0.2, MPFR version 3.0.0, MPC version 0.9, isl version none
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 1d343ef2b854a15058333158d7755550
COLLECT_GCC_OPTIONS='-Os' '-g'  '-v' '-specs=device-specs/specs-attiny10' '-mmcu=avrtiny'
 /usr/local/avr8-Microchip-3.7.0/bin/../lib/gcc/avr/7.3.0/../../../../avr/bin/as -mmcu=avrtiny -mno-skip-bug -o /var/folders/gv/zn3wcml52jq0vvjnd95j8g6h0000gp/T//ccqqOUkc.o /var/folders/gv/zn3wcml52jq0vvjnd95j8g6h0000gp/T//ccgdAOQI.s
COMPILER_PATH=/usr/local/avr8-Microchip-3.7.0/bin/../libexec/gcc/avr/7.3.0/:/usr/local/avr8-Microchip-3.7.0/bin/../libexec/gcc/:/usr/local/avr8-Microchip-3.7.0/bin/../lib/gcc/avr/7.3.0/../../../../avr/bin/

LIBRARY_PATH=/usr/local/avr8-Microchip-3.7.0/bin/../lib/gcc/avr/7.3.0/avrtiny/:/usr/local/avr8-Microchip-3.7.0/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avrtiny/:/usr/local/avr8-Microchip-3.7.0/bin/../lib/gcc/avr/7.3.0/:/usr/local/avr8-Microchip-3.7.0/bin/../lib/gcc/:/usr/local/avr8-Microchip-3.7.0/bin/../lib/gcc/av
r/7.3.0/../../../../avr/lib/

COLLECT_GCC_OPTIONS='-Os' '-g'  '-v' '-specs=device-specs/specs-attiny10' '-mmcu=avrtiny'
 /usr/local/avr8-Microchip-3.7.0/bin/../libexec/gcc/avr/7.3.0/collect2 -plugin /usr/local/avr8-Microchip-3.7.0/bin/../libexec/gcc/avr/7.3.0/liblto_plugin.so -plugin-opt=/usr/local/avr8-Microchip-3.7.0/bin/../libexec/gcc/avr/7.3.0/lto-wrapper -plugin-opt=-fresolution=/var/folders/gv/zn3wcml52jq0vvjnd95j8g6h0000gp/T//ccbYjUqI.res -plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lm -plugin-opt=-pass-through=-lc -plugin-opt=-pass-through=-lattiny10 -mavrtiny /usr/local/avr8-Microchip-3.7.0/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avrtiny/crtattiny10.o -L/usr/local/avr8-Microchip-3.7.0/bin/../lib/gcc/avr/7.3.0/avrtiny -L/usr/local/avr8-Microchip-3.7.0/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avrtiny -L/usr/local/avr8-Microchip-3.7.0/bin/../lib/gcc/avr/7.3.0 -L/usr/local/avr8-Microchip-3.7.0/bin/../lib/gcc -L/usr/local/avr8-Microchip-3.7.0/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib /var/folders/gv/zn3wcml52jq0vvjnd95j8g6h0000gp/T//ccqqOUkc.o -lgcc -lm --start-group -lgcc -lm -lc -lattiny10 --end-group

COLLECT_GCC_OPTIONS='-Os' '-g'  '-v' '-specs=device-specs/specs-attiny10' '-mmcu=avrtiny'

Arduino avr-g++

Using built-in specs.
Reading specs from /Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0/device-specs/specs-attiny10
COLLECT_GCC=/Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin//avr-g++
COLLECT_LTO_WRAPPER=/Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../libexec/gcc/avr/7.3.0/lto-wrapper
Target: avr
Configured with: ../gcc/configure --enable-fixed-point --enable-languages=c,c++ --prefix=/Users/jenkins/jenkins/workspace/avr-gcc-staging/label/mac-mini/objdir --disable-nls --disable-libssp --disable-libada --disable-shared --with-avrlibc=yes --with-dwarf2 --disable-doc --target=avr
Thread model: single
gcc version 7.3.0 (GCC) 
COLLECT_GCC_OPTIONS='-Os' '-g'  '-v' '-specs=device-specs/specs-attiny10' '-mmcu=avrtiny'

 /Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../libexec/gcc/avr/7.3.0/cc1plus -quiet -v -iprefix /Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0/ -D__AVR_ATtiny10__ -D__AVR_DEVICE_NAME__=attiny10 foo.cpp -mn-flash=1 -mno-skip-bug -mabsdata -quiet -dumpbase foo.cpp -mmcu=avrtiny -auxbase foo -g -Os -version -mn-flash=1 -mno-skip-bug -mabsdata -fno-rtti -fno-enforce-eh-specs -fno-exceptions -o /var/folders/gv/zn3wcml52jq0vvjnd95j8g6h0000gp/T//ccnUYB80.s

GNU C++14 (GCC) version 7.3.0 (avr)
	compiled by GNU C version 4.2.1 Compatible Apple LLVM 8.1.0 (clang-802.0.38), GMP version 5.0.2, MPFR version 3.1.0, MPC version 0.9, isl version none
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
ignoring nonexistent directory "/Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0/../../../../avr/include/c++/7.3.0"
ignoring nonexistent directory "/Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0/../../../../avr/include/c++/7.3.0/avr"
ignoring nonexistent directory "/Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0/../../../../avr/include/c++/7.3.0/backward"
ignoring nonexistent directory "/Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0/../../../../avr/sys-include"
ignoring nonexistent directory "/Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/../../lib/gcc/avr/7.3.0/../../../../avr/include/c++/7.3.0"
ignoring nonexistent directory "/Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/../../lib/gcc/avr/7.3.0/../../../../avr/include/c++/7.3.0/avr"
ignoring nonexistent directory "/Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/../../lib/gcc/avr/7.3.0/../../../../avr/include/c++/7.3.0/backward"
ignoring duplicate directory "/Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/../../lib/gcc/avr/7.3.0/include"
ignoring duplicate directory "/Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/../../lib/gcc/avr/7.3.0/include-fixed"
ignoring nonexistent directory "/Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/../../lib/gcc/avr/7.3.0/../../../../avr/sys-include"
ignoring duplicate directory "/Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/../../lib/gcc/avr/7.3.0/../../../../avr/include"
#include "..." search starts here:
#include <...> search starts here:
 /Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0/include
 /Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0/include-fixed
 /Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0/../../../../avr/include
End of search list.
GNU C++14 (GCC) version 7.3.0 (avr)
	compiled by GNU C version 4.2.1 Compatible Apple LLVM 8.1.0 (clang-802.0.38), GMP version 5.0.2, MPFR version 3.1.0, MPC version 0.9, isl version none
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: d29517aadee47ae2ad83928b972d8dfb
COLLECT_GCC_OPTIONS='-Os' '-g'  '-v' '-specs=device-specs/specs-attiny10' '-mmcu=avrtiny'
 /Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0/../../../../avr/bin/as -mmcu=avrtiny -mno-skip-bug -o /var/folders/gv/zn3wcml52jq0vvjnd95j8g6h0000gp/T//ccYk7i5z.o /var/folders/gv/zn3wcml52jq0vvjnd95j8g6h0000gp/T//ccnUYB80.s
COMPILER_PATH=/Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../libexec/gcc/avr/7.3.0/:/Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../libexec/gcc/:/Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0/../../../../avr/bin/

LIBRARY_PATH=/Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0/:/Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/:/Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/

COLLECT_GCC_OPTIONS='-Os' '-g'  '-v' '-specs=device-specs/specs-attiny10' '-mmcu=avrtiny'

 /Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../libexec/gcc/avr/7.3.0/collect2 -plugin /Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../libexec/gcc/avr/7.3.0/liblto_plugin.so -plugin-opt=/Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../libexec/gcc/avr/7.3.0/lto-wrapper -plugin-opt=-fresolution=/var/folders/gv/zn3wcml52jq0vvjnd95j8g6h0000gp/T//cc41gN6N.res -plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lm -plugin-opt=-pass-through=-lc -plugin-opt=-pass-through=-lattiny10 -mavrtiny crtattiny10.o -L/Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0 -L/Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc -L/Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib /var/folders/gv/zn3wcml52jq0vvjnd95j8g6h0000gp/T//ccYk7i5z.o -lgcc -lm --start-group -lgcc -lm -lc -lattiny10 --end-group

/Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0/../../../../avr/bin/ld: cannot find crtattiny10.o: No such file or directory
/Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0/../../../../avr/bin/ld: skipping incompatible /Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0/libgcc.a when searching for -lgcc
/Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0/../../../../avr/bin/ld: cannot find -lgcc
/Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0/../../../../avr/bin/ld: skipping incompatible /Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/libm.a when searching for -lm
/Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0/../../../../avr/bin/ld: cannot find -lm
/Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0/../../../../avr/bin/ld: skipping incompatible /Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0/libgcc.a when searching for -lgcc
/Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0/../../../../avr/bin/ld: cannot find -lgcc
/Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0/../../../../avr/bin/ld: skipping incompatible /Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/libm.a when searching for -lm
/Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0/../../../../avr/bin/ld: cannot find -lm
/Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0/../../../../avr/bin/ld: skipping incompatible /Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/libc.a when searching for -lc
/Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0/../../../../avr/bin/ld: cannot find -lc
/Applications/Arduino-1.8.13.app/Contents/Java/portable/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/../lib/gcc/avr/7.3.0/../../../../avr/bin/ld: cannot find -lattiny10
collect2: error: ld returned 1 exit status

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@WestfW @wholder @enekochan @facchinm