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@aykevl aykevl released this 26 Jan 14:12
· 1582 commits to release since this release
v0.22.0
3883550

This release contains significantly improved standard library support with many more packages passing all tests. Especially the os package was improved a lot with many functions added to match the standard Go os package. In addition, we upgraded LLVM to LLVM 13, improved the build cache (no tinygo clean anymore), and of course we've made various other improvements and bug fixes.

We've added the following boards this release:

Here are the changes in detail:

  • command line
    • add asyncify to scheduler flag help
    • support -run for tests
    • remove FreeBSD target support
    • add LLVM 12 and LLVM 13 support, use LLVM 13 by default
    • add support for ARM64 MacOS
    • improve help
    • check /run/media as well as /media on Linux for non-debian-based distros
    • test: set cmd.Dir even when running emulators
    • info: add JSON output using the -json flag
  • compiler
    • builder: fix off-by-one in size calculation
    • builder: handle concurrent library header rename
    • builder: use flock to avoid double-compiles
    • builder: use build ID as cache key
    • builder: add -fno-stack-protector to musl build
    • builder: update clang header search path to look in /usr/lib
    • builder: explicitly disable unwind tables for ARM
    • cgo: add support for C.CString and related functions
    • compiler: fix ranging over maps with particular map types
    • compiler: add correct debug location to init instructions
    • compiler: fix emission of large object layouts
    • compiler: work around AVR atomics bugs
    • compiler: predeclare runtime.trackPointer
    • interp: work around AVR function pointers in globals
    • interp: run goroutine starts and checks at runtime
    • interp: always run atomic and volatile loads/stores at runtime
    • interp: bump timeout to 180 seconds
    • interp: handle type assertions on nil interfaces
    • loader: elminate goroot cache inconsistency
    • loader: respect $GOROOT when running go list
    • transform: allocate the correct amount of bytes in an alloca
    • transform: remove switched func lowering
  • standard library
    • crypto/rand: show error if platform has no rng
    • device/*: add *_Msk field for each bit field and avoid duplicates
    • device/*: provide Set/Get for each register field described in the SVD files
    • internal/task: swap stack chain when switching goroutines
    • internal/task: remove -scheduler=coroutines
    • machine: add Device string constant
    • net: add bare Interface implementation
    • net: add net.Buffers
    • os: stub out support for some features
    • os: obey TMPDIR on unix, TMP on Windows, etc
    • os: implement ReadAt, Mkdir, Remove, Stat, Lstat, CreateTemp, MkdirAll, Chdir, Chmod, Clearenv, Unsetenv, Setenv, MkdirTemp, Rename, Seek, ExpandEnv, Symlink, Readlink
    • os: implement File.Stat
    • os: fix IsNotExist on nonexistent path
    • os: fix opening files on WASI in read-only mode
    • os: work around lack of syscall.seek on 386 and arm
    • reflect: make sure indirect pointers are handled correctly
    • runtime: allow comparing interfaces
    • runtime: use LLVM intrinsic to read the stack pointer
    • runtime: strengthen hashmap hash function for structs and arrays
    • runtime: fix float/complex hashing
    • runtime: fix nil map dereference
    • runtime: add realloc implementation to GCs
    • runtime: handle negative sleep times
    • runtime: correct GC scan bounds
    • runtime: remove extalloc GC
    • rumtime: implement __sync libcalls as critical sections for most microcontrollers
    • runtime: add stubs for Func.FileLine and Frame.PC
    • sync: fix concurrent read-lock on write-locked RWMutex
    • sync: add a package doc
    • sync: add tests
    • syscall: add support for Mmap and Mprotect
    • syscall: fix array size for mmap slice creation
    • syscall: enable Getwd in wasi
    • testing: add a stub for CoverMode
    • testing: support -bench option to run benchmarks matching the given pattern.
    • testing: support b.SetBytes(); implement sub-benchmarks.
    • testing: replace spaces with underscores in test/benchmark names, as upstream does
    • testing: implement testing.Cleanup
    • testing: allow filtering subbenchmarks with the -bench flag
    • testing: implement -benchtime flag
    • testing: print duration
    • testing: allow filtering of subtests using -run
  • targets
    • all: change LLVM features to match vanilla Clang
    • avr: use interrupt-based timer which is much more accurate
    • nrf: fix races in I2C
    • samd51: implement TRNG for randomness
    • stm32: pull-up on I2C lines
    • stm32: fix timeout for i2c comms
    • stm32f4, stm32f103: initial implementation for ADC
    • stm32f4, stm32f7, stm32l0x2, stm32l4, stm32l5, stm32wl: TRNG implementation in crypto/rand
    • stm32wl: add I2C support
    • windows: add support for the -size= flag
    • wasm: add support for tinygo test
    • wasi, wasm: raise default stack size to 16 KiB
  • boards
    • add M5Stack
    • add lorae5 (stm32wle) support
    • add Generic Node Sensor Edition
    • add STM32F469 Discovery
    • add M5Stamp C3
    • add Blues Wireless Swan
    • bluepill: add definitions for ADC pins
    • stm32f4disco: add definitions for ADC pins
    • stm32l552ze: use supported stlink interface
    • microbit-v2: add some pin definitions
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