Updating ARM toolchain

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1

I'm trying to build for device using playdate-cpp (GitHub - nstbayless/playdate-cpp: C++ on playdate)
I'm using a M1 Macbook pro 8gb RAM on the latest system update.

To build for device I do as specified at this page: Inside Playdate with C

When It comes to the linking step I get this error:

/usr/local/playdate/gcc-arm-none-eabi-9-2019-q4-major/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../arm-none-eabi/bin/ld: .data has both ordered

[`.ARM.exidx.text.__aeabi_atexit' in /usr/local/playdate/gcc-arm-none-eabi-9-2019-q4-major/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../arm-none-eabi/lib/thumb/v7e-m+fp/hard/libstdc++.a(atexit_arm.o)] and unordered 

[`.data.__global_locale' in /usr/local/playdate/gcc-arm-none-eabi-9-2019-q4-major/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../arm-none-eabi/lib/thumb/v7e-m+fp/hard/libc.a(lib_a-locale.o)] sections
/usr/local/playdate/gcc-arm-none-eabi-9-2019-q4-major/bin/../lib/gcc/arm-none-eabi/9.2.1/../../../../arm-none-eabi/bin/ld: final link failed: bad value

It is specified on the repository above, and in a forum post that updating the ARM toolchain might solve the problem. I've downloaded and installed a newer version from Arm GNU Toolchain Downloads – Arm Developer
But IDK how to specify the path to that toolchain (which has installed under /Applications/ArmGNUToolchain)

2

This docs you linked to say this:

This will produce a PDX that’s ready to run on the Simulator. When you want to build for the device, delete the contents of the build folder (or create a second folder), then run these commands which build an ARM binary:

cd build
cmake -DCMAKE_TOOLCHAIN_FILE=<path to SDK>/C_API/buildsupport/arm.cmake ..
make

I think you probably want to provide -DCMAKE_TOOLCHAIN_FILE= /Applications/ArmGNUToolchain or some subdirectory where the binaries are.

3

No this option's purpose is to link to an SDK CMake file that handles compiling with the ARM toolchain.

I've actually found the solution, with some help from this post: Symlinks to ARM toolchain binaries

When you install the Playdate SDK it also installs a bunch of symlinks to it's own ARM Toolchain in /usr/local/bin

All I did was run the command
ln -sf /Applications/ARMGNUToolchain/13.2.Rel1/arm-none-eabi/bin/* /usr/local/bin
This replaced the SDK's toolchain symlinks with the new ones and it compiled and ran on playdate fine

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