RaspberryPi Pico & LLVM & Embedded Swift

Transcript

1. RaspberryPi Pico && LLVM && Embedded Swift yochidros swift expands! #3 2024/08/29
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3. iOSDC 2024 08/23 Fri TrackD
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6. https://github.com/raspberrypi/pico-sdk/releases/tag/2.0.0 Recent LLVM Embedded Toolchain for ArmRM versions are supported on Arm.
7. https://github.com/ARM-software/LLVM-embedded-toolchain-for-Arm
8. PICO_DEFAULT_COMPILER="pico_arm_clang" PICO_COMPILER="pico_arm_clang" PICO_TOOLCHAIN_PATH="/Applications/LLVM-ET-Arm-18.1.3-Darwin- universal" CMAKE_TOOLCHAIN_FILE="ద੾ͳύε" $ TOOLCHAINS=$(SWIFT_TOOLCHAINS) \ PICO_SDK_PATH=“ద੾ͳύε" \ PICO_DEFAULT_COMPILER=“pico_arm_clang" \ PICO_COMPILER="pico_arm_clang" \ PICO_TOOLCHAIN_PATH=$(PICO_TOOLCHAIN_PATH) \ CMAKE_TOOLCHAIN_FILE="ద੾ͳύε" PICO_BOARD=$(BOARD) \ cmake --build build
9. cmake/preload/platforms/RP2040.make -set(PICO_DEFAULT_COMPILER "pico_arm_cortex_m0plus_gcc") +set(PICO_DEFAULT_COMPILER "pico_arm_cortex_m0plus_clang") set(PICO_CHIP rp2040)
10. ld.lld: error: unde f ined symbol: getentropy >>> referenced by stack_protector.c:28 (/workspace/workspace/llvm-embedded/llvm-18/ build-and-test/build/picolibc/armv6m_soft_nofp/src/picolibc_armv6m_soft_nofp- build/../../../../../src/picolibc/newlib/libc/ssp/stack_protector.c:28) >>> libc_ssp_stack_protector.c.o:(__stack_chk_init) in archive /Applications/LLVM-ET- Arm-18.1.3-Darwin-universal/lib/clang-runtimes/arm-none-eabi/armv6m_soft_nofp/lib/libc.a >>> referenced by stack_protector.c:0 (/workspace/workspace/llvm-embedded/llvm-18/ build-and-test/build/picolibc/armv6m_soft_nofp/src/picolibc_armv6m_soft_nofp- build/../../../../../src/picolibc/newlib/libc/ssp/stack_protector.c:0) >>> libc_ssp_stack_protector.c.o:(__stack_chk_init) in archive /Applications/LLVM-ET- Arm-18.1.3-Darwin-universal/lib/clang-runtimes/arm-none-eabi/armv6m_soft_nofp/lib/libc.a stack protectorͷγϯϘϧ͕Έ͔ͭΒͳ͍😇
11. -disable-stack-protector
12. LLVMͰ΋ϏϧυͰ͖Δ 🎉
13. try! Swift Embedded with Raspberry Pi Pico https://speakerdeck.com/yochidros/try-swift-embedded-with-raspberry-pi-pico?slide=18
14. https://speakerdeck.com/k_koheyi/draft?slide=31 K-Kohey͞Μͷʮ ήʔϜϘʔΠΞυόϯεͰSwiftΛಈ͔ͦ͏ʯ͔Βൈਮ
15. LLVMͩͱϏϧυͰ͖Δ 🎉
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17. https://github.com/yochidros/pico-swift-playground