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TinyGo v0.12.0 Release Notes

Release Date: 2020-01-31 // over 4 years ago

  • 🚀 This release incorporates a ton of smaller changes over more than a month. Notable changes are the addition of 3 new boards (Adafruit PyPortal, Adafruit Circuit Playground Bluefruit, Arduino Nano), improved support for interrupts, improved CGo support, and a number of improvements for the atsamd51 chip (for "M4" branded boards). Take a look below for a more detailed list of changes.

    • 💻 command line
      • add initial FreeBSD support
      • remove getting a serial port in gdb subcommand
      • add support for debugging through JLinkGDBServer
      • fix CGo when cross compiling
      • remove default port check for Digispark as micronucleus communicates directly using HID
      • differentiate between various serial/USB error messages
    • 🏗 builder
      • improve detection of Clang headers
    • compiler
      • fix assertion on empty interface
      • don't crash when encountering types.Invalid
      • revise defer to use heap allocations when running a variable number of times
      • improve error messages for failed imports
      • improve "function redeclared" error
      • add globaldce pass to start of optimization pipeline
      • add support for debugging globals
      • implement RISC-V CSR operations as intrinsics
      • add support for CGO_ENABLED environment variable
      • do not emit debug info for extern globals (bugfix)
      • add support for interrupts
      • implement maps for arbitrary keys
      • interp: error location for "unknown GEP" error
      • wasm-abi: create temporary allocas in the entry block
    • cgo
      • add support for symbols in #define
      • fix a bug in number tokenization
    • standard library
      • machine: avoid bytes package in USB logic
      • runtime: fix external address declarations
      • runtime: provide implementation for internal/bytealg.IndexByte
    • targets
      • atsamd51: fix volatile usage
      • atsamd51: fix ADC, updating to 12-bits precision
      • atsamd51: refactor SPI pin configuration to only look at pin numbers
      • atsamd51: switch UART to use new pin configuration
      • atsamd51: fix obvious bug in I2C code
      • atsamd51: use only the necessary UART interrupts
      • atsamd51: refactor I2C pin handling to auto-detect pin mode
      • avr: use a garbage collector
      • fe310: use CLINT peripheral for timekeeping
      • fe310: add support for PLIC interrupts
      • fe310: implement UART receive interrupts
      • riscv: support sleeping in QEMU
      • riscv: add bare-bones interrupt support
      • riscv: print exception PC and code
      • wasm: implement memcpy and memset
      • wasm: include wasi-libc
      • wasm: use wasi ABI for basic startup/stdout
    • boards
      • arduino: make avrdude command line compatible with Windows
      • arduino-nano: add this board
      • arduino-nano33: fix UART1 and UART2
      • circuitplay-bluefruit: add this board
      • digispark: add clock speed and pin mappings
      • gameboy-advance: include compiler-rt in build
      • gameboy-advance: implement interrupt handler
      • hifive1b: add support for gdb subcommand
      • pyportal: add this board
      • pyportal: remove manual SPI pin mapping as now handled by default