tinygo-org/tinygo v0.33.0

0.33.0

on GitHub

This is an important release. No new boards, but we make up for that by adding a bunch of other big stuff!

Some of the highlights:

• Go 1.23 support (including the new range-over-func language feature)
• WASI preview 2 support
• MIPS little endian support (big endian support is still experimental), so you can use GOARCH=mipsle
• softfloat support for ARM and MIPS
• improved error messages

For a full list of changes, see the list below.

• general
  • use latest version of x/tools
  • add chromeos 9p support for flashing
  • sort compiler error messages by source position in a package
  • don't include prebuilt libraries in the release to simplify packaging and reduce the release tarball size
  • show runtime panic addresses for tinygo run
  • support Go 1.23 (including all new language features)
  • test: support GOOS/GOARCH pairs in the -target flag
  • test: remove message after test binary built
• compiler
  • remove unused registers for x86_64 linux syscalls
  • remove old atomics workaround for AVR (not necessary in modern LLVM versions)
  • support golang.org/x/sys/unix syscalls
  • builder: remove workaround for generics race condition
  • builder: add package ID to compiler and optimization error messages
  • builder: show better error messages for some common linker errors
  • cgo: support preprocessor macros passed on the command line
  • cgo: use absolute paths for error messages
  • cgo: add support for printf
  • loader: handle go list errors inside TinyGo (for better error messages)
  • transform: fix incorrect alignment of heap-to-stack transform
  • transform: use thinlto-pre-link passes (instead of the full pipeline) to speed up compilation speed slightly
• standard library
  • crypto/tls: add CipherSuiteName and some extra fields to ConnectionState
  • internal/abi: implement initial version of this package
  • machine: use new internal/binary package
  • machine: rewrite Reply() to fix sending long replies in I2C Target Mode
  • machine/usb/descriptor: Reset joystick physical
  • machine/usb/descriptor: Drop second joystick hat
  • machine/usb/descriptor: Add more HID... functions
  • machine/usb/descriptor: Fix encoding of values
  • machine/usb/hid/joystick: Allow more hat switches
  • os: add Chown, Truncate
  • os/user: use stdlib version of this package
  • reflect: return correct name for the unsafe.Pointer type
  • reflect: implement Type.Overflow* functions
  • runtime: implement dummy getAuxv to satisfy golang.org/x/sys/
  • runtime: don't zero out new allocations for -gc=leaking when they are already zeroed
  • runtime: simplify slice growing/appending code
  • runtime: print a message when a fatal signal like SIGSEGV happens
  • runtime/debug: add GoVersion to debug.BuildInfo
  • sync: add Map.Clear()
  • sync/atomic: add And* and Or* compiler intrinsics needed for Go 1.23
  • syscall: add Fork and Execve
  • syscall: add all MacOS errno values
  • testing: stub out T.Deadline
  • unique: implement custom (naive) version of the unique package
• targets
  • arm: support GOARM=*,softfloat (softfloat support for ARM v5, v6, and v7)
  • mips: add linux/mipsle (and experimental linux/mips) support
  • mips: add GOMIPS=softfloat support
  • wasip2: add WASI preview 2 support
  • wasm/js: add node: prefix in require() call of wasm_exec.js
  • wasm-unknown: make sure the os package can be imported
  • wasm-unknown: remove import-memory flag