0.32.0
---
* **general**
- fix wasi-libc include headers on Nix
- apply OpenOCD commands after target configuration
- fix a minor race condition when determining the build tags
- support UF2 drives with a space in their name on Linux
- add LLVM 18 support
- drop support for Go 1.18 to be able to stay up to date
* **compiler**
- move `-panic=trap` support to the compiler/runtime
- fix symbol table index for WebAssembly archives
- fix ed25519 build errors by adjusting the alias names
- add aliases to generic AES functions
- fix race condition by temporarily applying a proposed patch
- `builder` : keep un-wasm-opt'd .wasm if -work was passed
- `builder` : make sure wasm-opt command line is printed if asked
- `cgo` : implement shift operations in preprocessor macros
- `interp` : checking for methodset existence
* **standard library**
- `machine` : add `__tinygo_spi_tx` function to simulator
- `machine` : fix simulator I2C support
- `machine` : add GetRNG support to simulator
- `machine` : add `TxFifoFreeLevel` for CAN
- `os` : add `Link`
- `os` : add `FindProcess` for posix
- `os` : add `Process.Release` for unix
- `os` : add `SetReadDeadline` stub
- `os` , `os/signal` : add signal stubs
- `os/user` : add stubs for `Lookup{,Group}` and `Group`
- `reflect` : use int in `StringHeader` and `SliceHeader` on non-AVR platforms
- `reflect` : fix `NumMethods` for Interface type
- `runtime` : skip negative sleep durations in sleepTicks
* **targets**
- `esp32` : add I2C support
- `rp2040` : move UART0 and UART1 to common file
- `rp2040` : make all RP2040 boards available for simulation
- `rp2040` : fix timeUnit type
- `stm32` : add i2c `Frequency` and `SetBaudRate` function for chips that were missing implementation
- `wasm-unknown` : add math and memory builtins that LLVM needs
- `wasip1` : replace existing `-target=wasi` support with wasip1 as supported in Go 1.21+
* **boards**
- `adafruit-esp32-feather-v2` : add the Adafruit ESP32 Feather V2
- `badger2040-w` : add support for the Badger2040 W
- `feather-nrf52840-sense` : fix lack of LXFO
- `m5paper` : add support for the M5 Paper
- `mksnanov3` : limit programming speed to 1800 kHz
- `nucleol476rg` : add stm32 nucleol476rg support
- `pico-w` : add the Pico W (which is near-idential to the pico target)
- `thingplus-rp2040` , `waveshare-rp2040-zero` : add WS2812 definition
- `pca10059-s140v7` : add this variant to the PCA10059 board
0.31.2
---
* **general**
* update the `net` submodule to updated version with `Buffers` implementation
* **compiler**
* `syscall` : add wasm_unknown tag to some additional files so it can compile more code
* **standard library**
* `runtime` : add Frame.Entry field
0.31.1
---
* **general**
* fix Binaryen build in make task
* update final build stage of Docker `dev` image to go1.22
* only use GHA cache for building Docker `dev` image
* update the `net` submodule to latest version
* **compiler**
* `interp` : make getelementptr offsets signed
* `interp` : return a proper error message when indexing out of range
0.31.0
---
* **general**
* remove LLVM 14 support
* add LLVM 17 support, and use it by default
* add Nix flake support
* update bundled Binaryen to version 116
* add `ports` subcommand that lists available serial ports for `-port` and `-monitor`
* support wasmtime version 14
* add `-serial=rtt` for serial output over SWD
* add Go 1.22 support and use it by default
* change minimum Node.js version from 16 to 18
* **compiler**
* use the new LLVM pass manager
* allow systems with more stack space to allocate larger values on the stack
* `build` : fix a crash due to sharing GlobalValues between build instances
* `cgo` : add `C._Bool` type
* `cgo` : fix calling CGo callback inside generic function
* `compileopts` : set `purego` build tag by default so that more packages can be built
* `compileopts` : force-enable CGo to avoid build issues
* `compiler` : fix crash on type assert on interfaces with no methods
* `interp` : print LLVM instruction in traceback
* `interp` : support runtime times by running them at runtime
* `loader` : enforce Go language version in the type checker (this may break existing programs with an incorrect Go version in go.mod)
* `transform` : fix bug in StringToBytes optimization pass
* **standard library**
* `crypto/tls` : stub out a lot of functions
* `internal/task` , `machine` : make TinyGo code usable with "big Go" CGo
* `machine` : implement `I2C.SetBaudRate` consistently across chips
* `machine` : implement `SPI.Configure` consistently across chips
* `machine` : add `DeviceID` for nrf, rp2040, sam, stm32
* `machine` : use smaller UART buffer size on atmega chips
* `machine/usb` : allow setting a serial number using a linker flag
* `math` : support more math functions on baremetal (picolibc) systems
* `net` : replace entire net package with a new one based on the netdev driver
* `os/user` : add bare-bones implementation of this package
* `reflect` : stub `CallSlice` and `FuncOf`
* `reflect` : add `TypeFor[T]`
* `reflect` : update `IsZero` to Go 1.22 semantics
* `reflect` : move indirect values into interface when setting interfaces
* `runtime` : stub `Breakpoint`
* `sync` : implement trylock
* **targets**
* `atmega` : use UART double speed mode for fewer errors and higher throughput
* `atmega328pb` : refactor to enable extra uart
* `avr` : don't compile large parts of picolibc (math, stdio) for LLVM 17 support
* `esp32` : switch over to the official SVD file
* `esp32c3` : implement USB_SERIAL for USBCDC communication
* `esp32c3` : implement I2C
* `esp32c3` : implement RNG
* `esp32c3` : add more ROM functions and update linker script for the in-progress wifi support
* `esp32c3` : update to newer SVD files
* `rp2040` : add support for UART hardware flow control
* `rp2040` : add definition for `machine.PinToggle`
* `rp2040` : set XOSC startup delay multiplier
* `samd21` : add support for UART hardware flow control
* `samd51` : add support for UART hardware flow control
* `wasm` : increase default stack size to 64k for wasi/wasm targets
* `wasm` : bump wasi-libc version to SDK 20
* `wasm` : remove line of dead code in wasm_exec.js
* **new targets/boards**
* `qtpy-esp32c3` : add Adafruit QT Py ESP32-C3 board
* `mksnanov3` : add support for the MKS Robin Nano V3.x
* `nrf52840-generic` : add generic nrf52840 chip support
* `thumby` : add support for Thumby
* `wasm` : add new `wasm-unknown` target that doesn't depend on WASI or a browser
* **boards**
* `arduino-mkrwifi1010` , `arduino-nano33` , `nano-rp2040` , `matrixportal-m4` , `metro-m4-airlift` , `pybadge` , `pyportal` : add `ninafw` build tag and some constants for BLE support
* `gopher-badge` : fix typo in USB product name
* `nano-rp2040` : add UART1 and correct mappings for NINA via UART
* `pico` : bump default stack size from 2kB to 8kB
* `wioterminal` : expose UART4
0.30.0
---
* **general**
- add LLVM 16 support, use it by default
* **compiler**
- `build` : work around a race condition by building Go SSA serially
- `compiler` : fix a crash by not using the LLVM global context types
- `interp` : don't copy unknown values in `runtime.sliceCopy` to fix miscompile
- `interp` : fix crash in error report by not returning raw LLVM values
* **standard library**
- `machine/usb/adc/midi` : various improvements and API changes
- `reflect` : add support for `[...]T` → `[]T` in reflect
* **targets**
- `atsamd21` , `atsamd51` : add support for USB INTERRUPT OUT
- `rp2040` : always use the USB device enumeration fix, even in chips that supposedly have the HW fix
- `wasm` : increase default stack size to 32k for wasi/wasm
* **boards**
- `gobadge` : add GoBadge target as alias for PyBadge :)
- `gemma-m0` : add support for the Adafruit Gemma M0
0.29.0
---
* **general**
- Go 1.21 support
- use https for renesas submodule #3856
- ci: rename release-double-zipped to something more useful
- ci: update Node.js from version 14 to version 16
- ci: switch GH actions builds to use Go 1.21 final release
- docker: update clang to version 15
- docker: use Go 1.21 for Docker dev container build
- `main` : add target JSON file in `tinygo info` output
- `main` : improve detection of filesystems
- `main` : use `go env` instead of doing all detection manually
- make: add make task to generate Renesas device wrappers
- make: add task to check NodeJS version before running tests
- add submodule for Renesas SVD file mirror repo
- update to go-serial package v1.6.0
- `testing` : add Testing function
- `tools/gen-device-svd` : small changes needed for Renesas MCUs
* **compiler**
- `builder` : update message for max supported Go version
- `compiler,reflect` : NumMethods reports exported methods only
- `compiler` : add compiler-rt and wasm symbols to table
- `compiler` : add compiler-rt to wasm.json
- `compiler` : add min and max builtin support
- `compiler` : implement clear builtin for maps
- `compiler` : implement clear builtin for slices
- `compiler` : improve panic message when a runtime call is unavailable
- `compiler` : update .ll test output
- `loader` : merge go.env file which is now required starting in Go 1.21 to correctly get required packages
* **standard library**
- `os` : define ErrNoDeadline
- `reflect` : Add FieldByNameFunc
- `reflect` : add SetZero
- `reflect` : fix iterating over maps with interface{} keys
- `reflect` : implement Value.Grow
- `reflect` : remove unnecessary heap allocations
- `reflect` : use .key() instead of a type assert
- `sync` : add implementation from upstream Go for OnceFunc, OnceValue, and OnceValues
* **targets**
- `machine` : UART refactor (#3832)
- `machine/avr` : pin change interrupt
- `machine/macropad_rp2040` : add machine.BUTTON
- `machine/nrf` : add I2C timeout
- `machine/nrf` : wait for stop condition after reading from the I2C bus
- `machine/nRF52` : set SPI TX/RX lengths even data is empty. Fixes #3868 (#3877)
- `machine/rp2040` : add missing suffix to CMD_READ_STATUS
- `machine/rp2040` : add NoPin support
- `machine/rp2040` : move flash related functions into separate file from C imports for correct - LSP. Fixes #3852
- `machine/rp2040` : wait for 1000 us after flash reset to avoid issues with busy USB bus
- `machine/samd51,rp2040,nrf528xx,stm32` : implement watchdog
- `machine/samd51` : fix i2cTimeout was decreasing due to cache activation
- `machine/usb` : Add support for HID Keyboard LEDs
- `machine/usb` : allow USB Endpoint settings to be changed externally
- `machine/usb` : refactor endpoint configuration
- `machine/usb` : remove usbDescriptorConfig
- `machine/usb/hid,joystick` : fix hidreport (3) (#3802)
- `machine/usb/hid` : add RxHandler interface
- `machine/usb/hid` : rename Handler() to TxHandler()
- `wasi` : allow zero inodes when reading directories
- `wasm` : add support for GOOS=wasip1
- `wasm` : fix functions exported through //export
- `wasm` : remove i64 workaround, use BigInt instead
- `example` : adjust time offset
- `example` : simplify pininterrupt
* **boards**
- `targets` : add AKIZUKI DENSHI AE-RP2040
- `targets` : adding new uf2 target for PCA10056 (#3765)
0.28.0
---
* **general**
- fix parallelism in the compiler on Windows by building LLVM with thread support
- support qemu-user debugging
- make target JSON msd-volume-name an array
- print source location when a panic happens in -monitor
- `test` : don't print `ok` for a successful compile-only
* **compiler**
- `builder` : remove non-ThinLTO build mode
- `builder` : fail earlier if Go is not available
- `builder` : improve `-size=full` in a number of ways
- `builder` : implement Nordic DFU file writer in Go
- `cgo` : allow `LDFLAGS: --export=...`
- `compiler` : support recursive slice types
- `compiler` : zero struct padding during map operations
- `compiler` : add llvm.ident metadata
- `compiler` : remove `unsafe.Pointer(uintptr(v) + idx)` optimization (use `unsafe.Add` instead)
- `compiler` : add debug info to `//go:embed` data structures for better `-size` output
- `compiler` : add debug info to string constants
- `compiler` : fix a minor race condition
- `compiler` : emit correct alignment in debug info for global variables
- `compiler` : correctly generate reflect data for local named types
- `compiler` : add alloc attributes to `runtime.alloc` , reducing flash usage slightly
- `compiler` : for interface maps, use the original named type if available
- `compiler` : implement most math/bits functions as LLVM intrinsics
- `compiler` : ensure all defers have been seen before creating rundefers
* **standard library**
- `internal/task` : disallow blocking inside an interrupt
- `machine` : add `CPUReset`
- `machine/usb/hid` : add MediaKey support
- `machine/usb/hid/joystick` : move joystick under HID
- `machine/usb/hid/joystick` : allow joystick settings override
- `machine/usb/hid/joystick` : handle case where we cannot find the correct HID descriptor
- `machine/usb/hid/mouse` : add support for mouse back and forward
- `machine/usb` : add ability to override default VID, PID, manufacturer name, and product name
- `net` : added missing `TCPAddr` and `UDPAddr` implementations
- `os` : add IsTimeout function
- `os` : fix resource leak in `(*File).Close`
- `os` : add `(*File).Sync`
- `os` : implement `(*File).ReadDir` for wasi
- `os` : implement `(*File).WriteAt`
- `reflect` : make sure null bytes are supported in tags
- `reflect` : refactor this package to enable many new features
- `reflect` : add map type methods: `Elem` and `Key`
- `reflect` : add map methods: `MapIndex` , `MapRange` /`MapIter`, `SetMapIndex` , `MakeMap` , `MapKeys`
- `reflect` : add slice methods: `Append` , `MakeSlice` , `Slice` , `Slice3` , `Copy` , `Bytes` , `SetLen`
- `reflect` : add misc methods: `Zero` , `Addr` , `UnsafeAddr` , `OverflowFloat` , `OverflowInt` , `OverflowUint` , `SetBytes` , `Convert` , `CanInt` , `CanFloat` , `CanComplex` , `Comparable`
- `reflect` : add type methods: `String` , `PkgPath` , `FieldByName` , `FieldByIndex` , `NumMethod`
- `reflect` : add stubs for `Type.Method` , `CanConvert` , `ArrayOf` , `StructOf` , `MapOf`
- `reflect` : add stubs for channel select routines/types
- `reflect` : allow nil rawType to call Kind()
- `reflect` : ensure all ValueError panics have Kind fields
- `reflect` : add support for named types
- `reflect` : improve `Value.String()`
- `reflect` : set `Index` and `PkgPath` field in `Type.Field`
- `reflect` : `Type.AssignableTo` : you can assign anything to `interface{}`
- `reflect` : add type check to `Value.Field`
- `reflect` : let `TypeOf(nil)` return nil
- `reflect` : move `StructField.Anonymous` field to match upstream location
- `reflect` : add `UnsafePointer` for Func types
- `reflect` : `MapIter.Next` needs to allocate new keys/values every time
- `reflect` : fix `IsNil` for interfaces
- `reflect` : fix `Type.Name` to return an empty string for non-named types
- `reflect` : add `VisibleFields`
- `reflect` : properly handle embedded structs
- `reflect` : make sure `PointerTo` works for named types
- `reflect` : `Set` : convert non-interface to interface
- `reflect` : `Set` : fix direction of assignment check
- `reflect` : support channel directions
- `reflect` : print struct tags in Type.String()
- `reflect` : properly handle read-only values
- `runtime` : allow custom-gc SetFinalizer and clarify KeepAlive
- `runtime` : implement KeepAlive using inline assembly
- `runtime` : check for heap allocations inside interrupts
- `runtime` : properly turn pointer into empty interface when hashing
- `runtime` : improve map size hint usage
- `runtime` : zero map key/value on deletion to so GC doesn't see them
- `runtime` : print the address where a panic happened
- `runtime/debug` : stub `SetGCPercent` , `BuildInfo.Settings`
- `runtime/metrics` : add this package as a stub
- `syscall` : `Stat_t` timespec fields are Atimespec on darwin
- `syscall` : add `Timespec.Unix()` for wasi
- `syscall` : add fsync using libc
- `testing` : support -test.count
- `testing` : make test output unbuffered when verbose
- `testing` : add -test.skip
- `testing` : move runtime.GC() call to runN to match upstream
- `testing` : add -test.shuffle to order randomize test and benchmark order
* **targets**
- `arm64` : fix register save/restore to include vector registers
- `attiny1616` : add support for this chip
- `cortexm` : refactor EnableInterrupts and DisableInterrupts to avoid `arm.AsmFull`
- `cortexm` : enable functions in RAM for go & cgo
- `cortexm` : convert SystemStack from `AsmFull` to C inline assembly
- `cortexm` : fix crash due to wrong stack size offset
- `nrf` : samd21, stm32: add flash API
- `nrf` : fix memory issue in ADC read
- `nrf` : new peripheral type for nrf528xx chips
- `nrf` : implement target mode
- `nrf` : improve ADC and add oversampling, longer sample time, and reference voltage
- `rp2040` : change calling order for device enumeration fix to do first
- `rp2040` : rtc delayed interrupt
- `rp2040` : provide better errors for invalid pins on I2C and SPI
- `rp2040` : change uart to allow for a single pin
- `rp2040` : implement Flash interface
- `rp2040` : remove SPI `DataBits` property
- `rp2040` : unify all linker scripts using LDFLAGS
- `rp2040` : remove SPI deadline for improved performance
- `rp2040` : use 4MHz as default frequency for SPI
- `rp2040` : implement target mode
- `rp2040` : use DMA for send-only SPI transfers
- `samd21` : rearrange switch case for get pin cfg
- `samd21` : fix issue with WS2812 driver by making pin accesses faster
- `samd51` : enable CMCC cache for greatly improved performance
- `samd51` : remove extra BK0RDY clear
- `samd51` : implement Flash interface
- `samd51` : use correct SPI frequency
- `samd51` : remove extra BK0RDY clear
- `samd51` : fix ADC multisampling
- `wasi` : allow users to set the `runtime_memhash_tsip` or `runtime_memhash_fnv` build tags
- `wasi` : set `WASMTIME_BACKTRACE_DETAILS` when running in wasmtime.
- `wasm` : implement the `//go:wasmimport` directive
* **boards**
- `gameboy-advance` : switch to use register definitions in device/gba
- `gameboy-advance` : rename display and make pointer receivers
- `gopher-badge` : Added Gopher Badge support
- `lorae5` : add needed definition for UART2
- `lorae5` : correct mapping for I2C bus, add pin mapping to enable power
- `pinetime` : update the target file (rename from pinetime-devkit0)
- `qtpy` : fix bad pin assignment
- `wioterminal` : fix pin definition of BCM13
- `xiao` : Pins D4 & D5 are I2C1. Use pins D2 & D3 for I2C0.
- `xiao` : add DefaultUART
0.27.0
---
* **general**
- all: update musl
- all: remove "acm:"` prefix for USB vid/pid pair
- all: add support for LLVM 15
- all: use DWARF version 4
- all: add initial (incomplete) support for Go 1.20
- all: add `-gc=custom` option
- `main` : print ldflags including ThinLTO flags with -x
- `main` : fix error message when a serial port can't be accessed
- `main` : add `-timeout` flag to allow setting how long TinyGo will try looking for a MSD volume for flashing
- `test` : print PASS on pass when running standalone test binaries
- `test` : fix printing of benchmark output
- `test` : print package name when compilation failed (not just when the test failed)
* **compiler**
- refactor to support LLVM 15
- `builder` : print compiler commands while building a library
- `compiler` : fix stack overflow when creating recursive pointer types (fix for LLVM 15+ only)
- `compiler` : allow map keys and values of ≥256 bytes
- `cgo` : add support for `C.float` and `C.double`
- `cgo` : support anonymous enums included in multiple Go files
- `cgo` : add support for bitwise operators
- `interp` : add support for constant icmp instructions
- `transform` : fix memory corruption issues
* **standard library**
- `machine/usb` : remove allocs in USB ISR
- `machine/usb` : add `Port()` and deprecate `New()` to have the API better match the singleton that is actually being returned
- `machine/usb` : change HID usage-maximum to 0xFF
- `machine/usb` : add USB HID joystick support
- `machine/usb` : change to not send before endpoint initialization
- `net` : implement `Pipe`
- `os` : add stub for `os.Chtimes`
- `reflect` : stub out `Type.FieldByIndex`
- `reflect` : add `Value.IsZero` method
- `reflect` : fix bug in `.Field` method when the field fits in a pointer but the parent doesn't
- `runtime` : switch some `panic()` calls in the gc to `runtimePanic()` for consistency
- `runtime` : add xorshift-based fastrand64
- `runtime` : fix alignment for arm64, arm, xtensa, riscv
- `runtime` : implement precise GC
- `runtime/debug` : stub `PrintStack`
- `sync` : implement simple pooling in `sync.Pool`
- `syscall` : stubbed `Setuid` , Exec and friends
- `syscall` : add more stubs as needed for Go 1.20 support
- `testing` : implement `t.Setenv`
- `unsafe` : add support for Go 1.20 slice/string functions
* **targets**
- `all` : do not set stack size per board
- `all` : update picolibc to v1.7.9
- `atsame5x` : fix CAN extendedID handling
- `atsame5x` : reduce heap allocation
- `avr` : drop GNU toolchain dependency
- `avr` : fix .data initialization for binaries over 64kB
- `avr` : support ThinLTO
- `baremetal` : implements calloc
- `darwin` : fix `syscall.Open` on darwin/arm64
- `darwin` : fix error with `tinygo lldb`
- `esp` : use LLVM Xtensa linker instead of Espressif toolchain
- `esp` : use ThinLTO for Xtensa
- `esp32c3` : add SPI support
- `linux` : include musl `getpagesize` function in release
- `nrf51` : add ADC implementation
- `nrf52840` : add PDM support
- `riscv` : add "target-abi" metadata flag
- `rp2040` : remove mem allocation in GPIO ISR
- `rp2040` : avoid allocating clock on heap
- `rp2040` : add basic GPIO support for PIO
- `rp2040` : fix USB interrupt issue
- `rp2040` : fix RP2040-E5 USB errata
- `stm32` : always set ADC pins to pullups floating
- `stm32f1` , `stm32f4` : fix ADC by clearing the correct bit for rank after each read
- `stm32wl` : Fix incomplete RNG initialisation
- `stm32wlx` : change order for init so clock speeds are set before peripheral start
- `wasi` : makes wasmtime "run" explicit
- `wasm` : fix GC scanning of allocas
- `wasm` : allow custom malloc implementation
- `wasm` : remove `-wasm-abi=` flag (use `-target` instead)
- `wasm` : fix scanning of the stack
- `wasm` : fix panic when allocating 0 bytes using malloc
- `wasm` : always run wasm-opt even with `-scheduler=none`
- `wasm` : avoid miscompile with ThinLTO
- `wasm` : allow the emulator to expand `{tmpDir}`
- `wasm` : support ThinLTO
- `windows` : update mingw-w64 version to avoid linker warning
- `windows` : add ARM64 support
* **boards**
- Add Waveshare RP2040 Zero
- Add Arduino Leonardo support
- Add Adafruit KB2040
- Add Adafruit Feather M0 Express
- Add Makerfabs ESP32C3SPI35 TFT Touchscreen board
- Add Espressif ESP32-C3-DevKit-RUST-1 board
- `lgt92` : fix OpenOCD configuration
- `xiao-rp2040` : fix D9 and D10 constants
- `xiao-rp2040` : add pin definitions
0.26.0
---
* **general**
- remove support for LLVM 13
- remove calls to deprecated ioutil package
- move from `os.IsFoo` to `errors.Is(err, ErrFoo)`
- fix for builds using an Android host
- make interp timeout configurable from command line
- ignore ports with VID/PID if there is no candidates
- drop support for Go 1.16 and Go 1.17
- update serial package to v1.3.5 for latest bugfixes
- remove GOARM from `tinygo info`
- add flag for setting the goroutine stack size
- add serial port monitoring functionality
* **compiler**
- `cgo` : implement support for static functions
- `cgo` : fix panic when FuncType.Results is nil
- `compiler` : add aliases for `edwards25519/field.feMul` and `field.feSquare`
- `compiler` : fix incorrect DWARF type in some generic parameters
- `compiler` : use LLVM math builtins everywhere
- `compiler` : replace some math operation bodies with LLVM intrinsics
- `compiler` : replace math aliases with intrinsics
- `compiler` : fix `unsafe.Sizeof` for chan and map values
- `compileopts` : use tags parser from buildutil
- `compileopts` : use backticks for regexp to avoid extra escapes
- `compileopts` : fail fast on duplicate values in target field slices
- `compileopts` : fix windows/arm target triple
- `compileopts` : improve error handling when loading target/*.json
- `compileopts` : add support for stlink-dap programmer
- `compileopts` : do not complain about `-no-debug` on MacOS
- `goenv` : support `GOOS=android`
- `interp` : fix reading from external global
- `loader` : fix link error for `crypto/internal/boring/sig.StandardCrypto`
* **standard library**
- rename assembly files to .S extension
- `machine` : add PWM peripheral comments to pins
- `machine` : improve UARTParity slightly
- `machine` : do not export DFU_MAGIC_* constants on nrf52840
- `machine` : rename `PinInputPullUp` /`PinInputPullDown`
- `machine` : add `KHz` , `MHz` , `GHz` constants, deprecate `TWI_FREQ_*` constants
- `machine` : remove level triggered pin interrupts
- `machine` : do not expose `RESET_MAGIC_VALUE`
- `machine` : use `NoPin` constant where appropriate (instead of `0` for example)
- `net` : sync net.go with Go 1.18 stdlib
- `os` : add `SyscallError.Timeout`
- `os` : add `ErrProcessDone` error
- `reflect` : implement `CanInterface` and fix string `Index`
- `runtime` : make `MemStats` available to leaking collector
- `runtime` : add `MemStats.TotalAlloc`
- `runtime` : add `MemStats.Mallocs` and `Frees`
- `runtime` : add support for `time.NewTimer` and `time.NewTicker`
- `runtime` : implement `resetTimer`
- `runtime` : ensure some headroom for the GC to run
- `runtime` : make gc and scheduler asserts settable with build tags
- `runtime/pprof` : add `WriteHeapProfile`
- `runtime/pprof` : `runtime/trace` : stub some additional functions
- `sync` : implement `Map.LoadAndDelete`
- `syscall` : group WASI consts by purpose
- `syscall` : add WASI `{D,R}SYNC` , `NONBLOCK` FD flags
- `syscall` : add ENOTCONN on darwin
- `testing` : add support for -benchmem
* **targets**
- remove USB vid/pid pair of bootloader
- `esp32c3` : remove unused `UARTStopBits` constants
- `nrf` : implement `GetRNG` function
- `nrf` : `rp2040` : add `machine.ReadTemperature`
- `nrf52` : cleanup s140v6 and s140v7 uf2 targets
- `rp2040` : implement semi-random RNG based on ROSC based on pico-sdk
- `wasm` : add summary of wasm examples and fix callback bug
- `wasm` : do not allow undefined symbols (`--allow-undefined`)
- `wasm` : make sure buffers returned by `malloc` are kept until `free` is called
- `windows` : save and restore xmm registers when switching goroutines
* **boards**
- add Pimoroni's Tufty2040
- add XIAO ESP32C3
- add Adafruit QT2040
- add Adafruit QT Py RP2040
- `esp32c3-12f` : `matrixportal-m4` : `p1am-100` : remove duplicate build tags
- `hifive1-qemu` : remove this emulated board
- `wioterminal` : add UART3 for RTL8720DN
- `xiao-ble` : fix usbpid
0.25.0
---
* **command line**
- change to ignore PortReset failures
* **compiler**
- `compiler` : darwin/arm64 is aarch64, not arm
- `compiler` : don't clobber X18 and FP registers on darwin/arm64
- `compiler` : fix issue with methods on generic structs
- `compiler` : do not try to build generic functions
- `compiler` : fix type names for generic named structs
- `compiler` : fix multiple defined function issue for generic functions
- `compiler` : implement `unsafe.Alignof` and `unsafe.Sizeof` for generic code
* **standard library**
- `machine` : add DTR and RTS to Serialer interface
- `machine` : reorder pin definitions to improve pin list on tinygo.org
- `machine/usb` : add support for MIDI
- `machine/usb` : adjust buffer alignment (samd21, samd51, nrf52840)
- `machine/usb/midi` : add `NoteOn` , `NoteOff` , and `SendCC` methods
- `machine/usb/midi` : add definition of MIDI note number
- `runtime` : add benchmarks for memhash
- `runtime` : add support for printing slices via print/println
* **targets**
- `avr` : fix some apparent mistake in atmega1280/atmega2560 pin constants
- `esp32` : provide hardware pin constants
- `esp32` : fix WDT reset on the MCH2022 badge
- `esp32` : optimize SPI transmit
- `esp32c3` : provide hardware pin constants
- `esp8266` : provide hardware pin constants like `GPIO2`
- `nrf51` : define and use `P0_xx` constants
- `nrf52840` , `samd21` , `samd51` : unify bootloader entry process
- `nrf52840` , `samd21` , `samd51` : change usbSetup and sendZlp to public
- `nrf52840` , `samd21` , `samd51` : refactor handleStandardSetup and initEndpoint
- `nrf52840` , `samd21` , `samd51` : improve usb-device initialization
- `nrf52840` , `samd21` , `samd51` : move usbcdc to machine/usb/cdc
- `rp2040` : add usb serial vendor/product ID
- `rp2040` : add support for usb
- `rp2040` : change default for serial to usb
- `rp2040` : add support for `machine.EnterBootloader`
- `rp2040` : turn off pullup/down when input type is not specified
- `rp2040` : make picoprobe default openocd interface
- `samd51` : add support for `DAC1`
- `samd51` : improve TRNG
- `wasm` : stub `runtime.buffered` , `runtime.getchar`
- `wasi` : make leveldb runtime hash the default
* **boards**
- add Challenger RP2040 LoRa
- add MCH2022 badge
- add XIAO RP2040
- `clue` : remove pins `D21` ..`D28`
- `feather-rp2040` , `macropad-rp2040` : fix qspi-flash settings
- `xiao-ble` : add support for flash-1200-bps-reset
- `gopherbot` , `gopherbot2` : add these aliases to simplify for newer users
0.24.0
---
* **command line**
- remove support for go 1.15
- remove support for LLVM 11 and LLVM 12
- add initial Go 1.19 beta support
- `test` : fix package/... syntax
* **compiler**
- add support for the embed package
- `builder` : improve error message for "command not found"
- `builder` : add support for ThinLTO on MacOS and Windows
- `builder` : free LLVM objects after use, to reduce memory leaking
- `builder` : improve `-no-debug` error messages
- `cgo` : be more strict: CGo now requires every Go file to import the headers it needs
- `compiler` : alignof(func) is 1 pointer, not 2
- `compiler` : add support for type parameters (aka generics)
- `compiler` : implement `recover()` built-in function
- `compiler` : support atomic, volatile, and LLVM memcpy-like functions in defer
- `compiler` : drop support for macos syscalls via inline assembly
- `interp` : do not try to interpret past task.Pause()
- `interp` : fix some buggy localValue handling
- `interp` : do not unroll loops
- `transform` : fix MakeGCStackSlots that caused a possible GC bug on WebAssembly
* **standard library**
- `os` : enable os.Stdin for baremetal target
- `reflect` : add `Value.UnsafePointer` method
- `runtime` : scan GC globals conservatively on Windows, MacOS, Linux and Nintendo Switch
- `runtime` : add per-map hash seeds
- `runtime` : handle nil map write panics
- `runtime` : add stronger hash functions
- `syscall` : implement `Getpagesize`
* **targets**
- `atmega2560` : support UART1-3 + example for uart
- `avr` : use compiler-rt for improved float64 support
- `avr` : simplify timer-based time
- `avr` : fix race condition in stack write
- `darwin` : add support for `GOARCH=arm64` (aka Apple Silicon)
- `darwin` : support `-size=short` and `-size=full` flag
- `rp2040` : replace sleep 'busy loop' with timer alarm
- `rp2040` : align api for `PortMaskSet` , `PortMaskClear`
- `rp2040` : fix GPIO interrupts
- `samd21` , `samd51` , `nrf52840` : add support for USBHID (keyboard / mouse)
- `wasm` : update wasi-libc version
- `wasm` : use newer WebAssembly features
* **boards**
- add Badger 2040
- `matrixportal-m4` : attach USB DP to the correct pin
- `teensy40` : add I2C support
- `wioterminal` : fix I2C definition
0.23.0
---
* **command line**
- add `-work` flag
- add Go 1.18 support
- add LLVM 14 support
- `run` : add support for command-line parameters
- `build` : calculate default output path if `-o` is not specified
- `build` : add JSON output
- `test` : support multiple test binaries with `-c`
- `test` : support flags like `-v` on all targets (including emulated firmware)
* **compiler**
- add support for ThinLTO
- use compiler-rt from LLVM
- `builder` : prefer GNU build ID over Go build ID for caching
- `builder` : add support for cross compiling to Darwin
- `builder` : support machine outlining pass in stacksize calculation
- `builder` : disable asynchronous unwind tables
- `compileopts` : fix emulator configuration on non-amd64 Linux architectures
- `compiler` : move allocations > 256 bytes to the heap
- `compiler` : fix incorrect `unsafe.Alignof` on some 32-bit architectures
- `compiler` : accept alias for slice `cap` builtin
- `compiler` : allow slices of empty structs
- `compiler` : fix difference in aliases in interface methods
- `compiler` : make `RawSyscall` an alias for `Syscall`
- `compiler` : remove support for memory references in `AsmFull`
- `loader` : only add Clang header path for CGo
- `transform` : fix poison value in heap-to-stack transform
* **standard library**
- `internal/fuzz` : add this package as a shim
- `os` : implement readdir for darwin and linux
- `os` : add `DirFS` , which is used by many programs to access readdir.
- `os` : isWine: be compatible with older versions of wine, too
- `os` : implement `RemoveAll`
- `os` : Use a `uintptr` for `NewFile`
- `os` : add stubs for `exec.ExitError` and `ProcessState.ExitCode`
- `os` : export correct values for `DevNull` for each OS
- `os` : improve support for `Signal` by fixing various bugs
- `os` : implement `File.Fd` method
- `os` : implement `UserHomeDir`
- `os` : add `exec.ProcessState` stub
- `os` : implement `Pipe` for darwin
- `os` : define stub `ErrDeadlineExceeded`
- `reflect` : add stubs for more missing methods
- `reflect` : rename `reflect.Ptr` to `reflect.Pointer`
- `reflect` : add `Value.FieldByIndexErr` stub
- `runtime` : fix various small GC bugs
- `runtime` : use memzero for leaking collector instead of manually zeroing objects
- `runtime` : implement `memhash`
- `runtime` : implement `fastrand`
- `runtime` : add stub for `debug.ReadBuildInfo`
- `runtime` : add stub for `NumCPU`
- `runtime` : don't inline `runtime.alloc` with `-gc=leaking`
- `runtime` : add `Version`
- `runtime` : add stubs for `NumCgoCall` and `NumGoroutine`
- `runtime` : stub {Lock,Unlock}OSThread on Windows
- `runtime` : be able to deal with a very small heap
- `syscall` : make `Environ` return a copy of the environment
- `syscall` : implement getpagesize and munmap
- `syscall` : `wasi` : define `MAP_SHARED` and `PROT_READ`
- `syscall` : stub mmap(), munmap(), MAP_SHARED, PROT_READ, SIGBUS, etc. on nonhosted targets
- `syscall` : darwin: more complete list of signals
- `syscall` : `wasi` : more complete list of signals
- `syscall` : stub `WaitStatus`
- `syscall/js` : allow copyBytesTo(Go|JS) to use `Uint8ClampedArray`
- `testing` : implement `TempDir`
- `testing` : nudge type TB closer to upstream; should be a no-op change.
- `testing` : on baremetal platforms, use simpler test matcher
* **targets**
- `atsamd` : fix usbcdc initialization when `-serial=uart`
- `atsamd51` : allow higher frequency when using SPI
- `esp` : support CGo
- `esp32c3` : add support for input pin
- `esp32c3` : add support for GPIO interrupts
- `esp32c3` : add support to receive UART data
- `rp2040` : fix PWM bug at high frequency
- `rp2040` : fix some minor I2C bugs
- `rp2040` : fix incorrect inline assembly
- `rp2040` : fix spurious i2c STOP during write+read transaction
- `rp2040` : improve ADC support
- `wasi` : remove `--export-dynamic` linker flag
- `wasm` : remove heap allocator from wasi-libc
* **boards**
- `circuitplay-bluefruit` : move pin mappings so board can be compiled for WASM use in Playground
- `esp32-c3-12f` : add the ESP32-C3-12f Kit
- `m5stamp-c3` : add pin setting of UART
- `macropad-rp2040` : add the Adafruit MacroPad RP2040 board
- `nano-33-ble` : typo in LPS22HB peripheral definition and documentation (#2579)
- `teensy41` : add the Teensy 4.1 board
- `teensy40` : add ADC support
- `teensy40` : add SPI support
- `thingplus-rp2040` : add the SparkFun Thing Plus RP2040 board
- `wioterminal` : add DefaultUART
- `wioterminal` : verify written data when flashing through OpenOCD
- `xiao-ble` : add XIAO BLE nRF52840 support
0.22.0
---
* **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` : eliminate 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
0.21.0
---
* **command line**
- drop support for LLVM 10
- `build` : drop support for LLVM targets in the -target flag
- `build` : fix paths in error messages on Windows
- `build` : add -p flag to set parallelism
- `lldb` : implement `tinygo lldb` subcommand
- `test` : use emulator exit code instead of parsing test output
- `test` : pass testing arguments to wasmtime
* **compiler**
- use -opt flag for optimization level in CFlags (-Os, etc)
- `builder` : improve accuracy of the -size=full flag
- `builder` : hardcode some more frame sizes for __aeabi_* functions
- `builder` : add support for -size= flag for WebAssembly
- `cgo` : fix line/column reporting in syntax error messages
- `cgo` : support function definitions in CGo headers
- `cgo` : implement rudimentary C array decaying
- `cgo` : add support for stdio in picolibc and wasi-libc
- `cgo` : run CGo parser per file, not per CGo fragment
- `compiler` : fix unintentionally exported math functions
- `compiler` : properly implement div and rem operations
- `compiler` : add support for recursive function types
- `compiler` : add support for the `go` keyword on interface methods
- `compiler` : add minsize attribute for -Oz
- `compiler` : add "target-cpu" and "target-features" attributes
- `compiler` : fix indices into strings and arrays
- `compiler` : fix string compare functions
- `interp` : simplify some code to avoid some errors
- `interp` : support recursive globals (like linked lists) in globals
- `interp` : support constant globals
- `interp` : fix reverting of extractvalue/insertvalue with multiple indices
- `transform` : work around renamed return type after merging LLVM modules
* **standard library**
- `internal/bytealg` : fix indexing error in Compare()
- `machine` : support Pin.Get() function when the pin is configured as output
- `net` , `syscall` : Reduce code duplication by switching to internal/itoa.
- `os` : don't try to read executable path on baremetal
- `os` : implement Getwd
- `os` : add File.WriteString and File.WriteAt
- `reflect` : fix type.Size() to account for struct padding
- `reflect` : don't construct an interface-in-interface value
- `reflect` : implement Value.Elem() for interface values
- `reflect` : fix Value.Index() in a specific case
- `reflect` : add support for DeepEqual
- `runtime` : add another set of invalid unicode runes to encodeUTF8()
- `runtime` : only initialize os.runtime_args when needed
- `runtime` : only use CRLF on baremetal systems for println
- `runtime/debug` : stub `debug.SetMaxStack`
- `runtime/debug` : stub `debug.Stack`
- `testing` : add a stub for t.Parallel()
- `testing` : add support for -test.short flag
- `testing` : stub B.ReportAllocs()
- `testing` : add `testing.Verbose`
- `testing` : stub `testing.AllocsPerRun`
* **targets**
- fix gen-device-svd to handle 64-bit values
- add CPU and Features property to all targets
- match LLVM triple to the one Clang uses
- `atsam` : simplify definition of SERCOM UART, I2C and SPI peripherals
- `atsam` : move I2S0 to machine file
- `esp32` : fix SPI configuration
- `esp32c3` : add support for GDB debugging
- `esp32c3` : add support for CPU interrupts
- `esp32c3` : use tasks scheduler by default
- `fe310` : increase CPU frequency from 16MHz to 320MHz
- `fe310` : add support for bit banging drivers
- `linux` : build static binaries using musl
- `linux` : reduce binary size by calling `write` instead of `putchar`
- `linux` : add support for GOARM
- `riscv` : implement 32-bit atomic operations
- `riscv` : align the heap to 16 bytes
- `riscv` : switch to tasks-based scheduler
- `rp2040` : add CPUFrequency()
- `rp2040` : improve I2C baud rate configuration
- `rp2040` : add pin interrupt API
- `rp2040` : refactor PWM code and fix Period calculation
- `stm32f103` : fix SPI
- `stm32f103` : make SPI frequency selection more flexible
- `qemu` : signal correct exit code to QEMU
- `wasi` : run C/C++ constructors at startup
- `wasm` : ensure heapptr is aligned
- `wasm` : update wasi-libc dependency
- `wasm` : wasi: use asyncify
- `wasm` : support `-scheduler=none`
- `windows` : add support for Windows (amd64 only for now)
* **boards**
- `feather-stm32f405` , `feather-rp2040` : add I2C pin names
- `m5stack-core2` : add M5Stack Core2
- `nano-33-ble` : SoftDevice s140v7 support
- `nano-33-ble` : add constants for more on-board pins
0.20.0
---
* **command line**
- add support for Go 1.17
- improve Go version detection
- add support for the Black Magic Probe (BMP)
- add a flag for creating cpu profiles
* **compiler**
- `builder:` list libraries at the end of the linker command
- `builder:` strip debug information at link time instead of at compile time
- `builder:` add missing error check for `ioutil.TempFile()`
- `builder:` simplify running of jobs
- `compiler:` move LLVM math builtin support into the compiler
- `compiler:` move math aliases from the runtime to the compiler
- `compiler:` add aliases for many hashing packages
- `compiler:` add `*ssa.MakeSlice` bounds tests
- `compiler:` fix max possible slice
- `compiler:` add support for new language features of Go 1.17
- `compiler:` fix equally named structs in different scopes
- `compiler:` avoid zero-sized alloca in channel operations
- `interp:` don't ignore array indices for untyped objects
- `interp:` keep reverted package initializers in order
- `interp:` fix bug in compiler-time/run-time package initializers
- `loader:` fix panic in CGo files with syntax errors
- `transform:` improve GC stack slot pass to work around a bug
* **standard library**
- `crypto/rand` : switch to `arc4random_buf`
- `math:` fix `math.Max` and `math.Min`
- `math/big` : fix undefined symbols error
- `net:` add MAC address implementation
- `os:` implement `os.Executable`
- `os:` add `SEEK_SET` , `SEEK_CUR` , and `SEEK_END`
- `reflect:` add StructField.IsExported method
- `runtime:` reset heapptr to heapStart after preinit()
- `runtime:` add `subsections_via_symbols` to assembly files on darwin
- `testing:` add subset implementation of Benchmark
- `testing:` test testing package using `tinygo test`
- `testing:` add support for the `-test.v` flag
* **targets**
- `386:` bump minimum requirement to the Pentium 4
- `arm:` switch to Thumb instruction set on ARM
- `atsamd:` fix copy-paste error for atsamd21/51 calibTrim block
- `baremetal` ,`wasm`: support command line params and environment variables
- `cortexm:` fix stack overflow because of unaligned stacks
- `esp32c3:` add support for the ESP32-C3 from Espressif
- `nrf52840:` fix ram size
- `nxpmk66f18:` fix a suspicious bitwise operation
- `rp2040:` add SPI support
- `rp2040:` add I2C support
- `rp2040:` add PWM implementation
- `rp2040:` add openocd configuration
- `stm32:` add support for PortMask* functions for WS2812 support
- `unix:` fix time base for time.Now()
- `unix:` check for mmap error and act accordingly
- `wasm:` override dlmalloc heap implementation from wasi-libc
- `wasm:` align heap to 16 bytes
- `wasm:` add support for the crypto/rand package
* **boards**
- add `DefaultUART` to adafruit boards
- `arduino-mkrwifi1010:` add board definition for Arduino MKR WiFi 1010
- `arduino-mkrwifi1010:` fix pin definition of `NINA_RESETN`
- `feather-nrf52:` fix pin definition of uart
- `feather-rp2040:` add pin name definition
- `gameboy-advance:` fix ROM header
- `mdbt50qrx-uf2:` add Raytac MDBT50Q-RX Dongle with TinyUF2
- `nano-rp2040:` define `NINA_SPI` and fix wifinina pins
- `teensy40:` enable hardware UART reconfiguration, fix receive watermark interrupt
0.19.0
---
* **command line**
- don't consider compile-only tests as failing
- add -test flag for `tinygo list`
- escape commands while printing them with the -x flag
- make flash-command portable and safer to use
- use `extended-remote` instead of `remote` in GDB
- detect specific serial port IDs based on USB vid/pid
- add a flag to the command line to select the serial implementation
* **compiler**
- `cgo` : improve constant parser
- `compiler` : support chained interrupt handlers
- `compiler` : add support for running a builtin in a goroutine
- `compiler` : do not emit nil checks for loading closure variables
- `compiler` : skip context parameter when starting regular goroutine
- `compiler` : refactor method names
- `compiler` : add function and global section pragmas
- `compiler` : implement `syscall.rawSyscallNoError` in inline assembly
- `interp` : ignore inline assembly in markExternal
- `interp` : fix a bug in pointer cast workaround
- `loader` : fix testing a main package
* **standard library**
- `crypto/rand` : replace this package with a TinyGo version
- `machine` : make USBCDC global a pointer
- `machine` : make UART objects pointer receivers
- `machine` : define Serial as the default output
- `net` : add initial support for net.IP
- `net` : add more net compatibility
- `os` : add stub for os.ReadDir
- `os` : add FileMode constants from Go 1.16
- `os` : add stubs required for net/http
- `os` : implement process related functions
- `reflect` : implement AppendSlice
- `reflect` : add stubs required for net/http
- `runtime` : make task.Data a 64-bit integer to avoid overflow
- `runtime` : expose memory stats
- `sync` : implement NewCond
- `syscall` : fix int type in libc version
* **targets**
- `cortexm` : do not disable interrupts on abort
- `cortexm` : bump default stack size to 2048 bytes
- `nrf` : avoid heap allocation in waitForEvent
- `nrf` : don't trigger a heap allocation in SPI.Transfer
- `nrf52840` : add support for flashing with the BOSSA tool
- `rp2040` : add support for GPIO input
- `rp2040` : add basic support for ADC
- `rp2040` : gpio and adc pin definitions
- `rp2040` : implement UART
- `rp2040` : patch elf to checksum 2nd stage boot
- `stm32` : add PWM for most chips
- `stm32` : add support for pin interrupts
- `stm32f103` : add support for PinInputPullup / PinInputPulldown
- `wasi` : remove wasm build tag
* **boards**
- `feather-rp2040` : add support for this board
- `feather-nrf52840-sense` : add board definition for this board
- `pca10059` : support flashing from Windows
- `nano-rp2040` : add this board
- `nano-33-ble` : add support for this board
- `pico` : add the Raspberry Pi Pico board with the new RP2040 chip
- `qtpy` : add pin for neopixels
- all: add definition for ws2812 for supported boards
0.18.0
---
* **command line**
- drop support for Go 1.11 and 1.12
- throw an error when no target is specified on Windows
- improve error messages in `getDefaultPort()` , support for multiple ports
- remove `-cflags` and `-ldflags` flags
- implement `-ldflags="-X ..."`
- add `-print-allocs` flag that lets you print all heap allocations
- openocd commands in tinygo command line
- add `-llvm-features` parameter
- match `go test` output
- discover USB ports only, this will ignore f.ex. bluetooth
- use physicmal path instead of cached GOROOT in function getGoroot
- add goroot for snap installs
* **compiler**
- `builder` : add support for `-opt=0`
- `builder` , `compiler` : compile and cache packages in parallel
- `builder` : run interp per package
- `builder` : cache C and assembly file outputs
- `builder` : add support for `-x` flag to print commands
- `builder` : add optsize attribute while building the package
- `builder` : run function passes per package
- `builder` : hard code Clang compiler
- `compiler` : do not use `llvm.GlobalContext()`
- `compiler` : remove SimpleDCE pass
- `compiler` : do not emit nil checks for `*ssa.Alloc` instructions
- `compiler` : merge `runtime.typecodeID` and runtime.typeInInterface
- `compiler` : do not check for impossible type asserts
- `compiler` : fix use of global context: `llvm.Int32Type()`
- `compiler` : add interface IR test
- `compiler` : fix lack of method name in interface matching
- `compiler` : fix "fragment covers entire variable" bug
- `compiler` : optimize string literals and globals
- `compiler` : decouple func lowering from interface type codes
- `compiler` : add function attributes to some runtime calls
- `compiler` : improve position information in error messages
- `cgo` : add support for CFLAGS in .c files
- `interp` : support GEP on fixed (MMIO) addresses
- `interp` : handle `(reflect.Type).Elem()`
- `interp` : add support for runtime.interfaceMethod
- `interp` : make toLLVMValue return an error instead of panicking
- `interp` : add support for switch statement
- `interp` : fix phi instruction
- `interp` : remove map support
- `interp` : support extractvalue/insertvalue with multiple operands
- `transform` : optimize string comparisons against ""
- `transform` : optimize `reflect.Type` `Implements()` method
- `transform` : fix bug in interface lowering when signatures are renamed
- `transform` : don't rely on struct name of `runtime.typecodeID`
- `transform` : use IPSCCP pass instead of the constant propagation pass
- `transform` : fix func lowering assertion failure
- `transform` : do not lower zero-sized alloc to alloca
- `transform` : split interface and reflect lowering
* **standard library**
- `runtime` : add dummy debug package
- `machine` : fix data shift/mask in newUSBSetup
- `machine` : make `machine.I2C0` and similar objects pointers
- `machine` : unify usbcdc code
- `machine` : refactor PWM support
- `machine` : avoid heap allocations in USB code
- `reflect` : let `reflect.Type` be of interface type
- `reflect` : implement a number of stub functions
- `reflect` : check for access in the `Interface` method call
- `reflect` : fix `AssignableTo` and `Implements` methods
- `reflect` : implement `Value.CanAddr`
- `reflect` : implement `Sizeof` and `Alignof` for func values
- `reflect` : implement `New` function
- `runtime` : implement command line arguments in hosted environments
- `runtime` : implement environment variables for Linux
- `runtime` : improve timers on nrf, and samd chips
* **targets**
- all: use -Qunused-arguments only for assembly files
- `atmega1280` : add PWM support
- `attiny` : remove dummy UART
- `atsamd21` : improve SPI
- `atsamd51` : fix PWM support in atsamd51p20
- `atsamd5x` : improve SPI
- `atsamd51` , `atsame5x` : unify samd51 and same5x
- `atsamd51` , `atsamd21` : fix `ADC.Get()` value at 8bit and 10bit
- `atsame5x` : add support for CAN
- `avr` : remove I2C stubs from attiny support
- `cortexm` : check for `arm-none-eabi-gdb` and `gdb-multiarch` commands
- `cortexm` : add `__isr_vector` symbol
- `cortexm` : disable FPU on Cortex-M4
- `cortexm` : clean up Cortex-M target files
- `fe310` : fix SPI read
- `gameboy-advance` : Fix RGBA color interpretation
- `nrf52833` : add PWM support
- `stm32l0` : use unified UART logic
- `stm32` : move f103 (bluepill) to common i2c code
- `stm32` : separate altfunc selection for UART Tx/Rx
- `stm32` : i2c implementation for F7, L5 and L4 MCUs
- `stm32` : make SPI CLK fast to fix data issue
- `stm32` : support SPI on L4 series
- `unix` : avoid possible heap allocation with `-opt=0`
- `unix` : use conservative GC by default
- `unix` : use the tasks scheduler instead of coroutines
- `wasi` : upgrade WASI version to wasi_snapshot_preview1
- `wasi` : darwin: support basic file io based on libc
- `wasm` : only export explicitly exported functions
- `wasm` : use WASI ABI for exit function
- `wasm` : scan globals conservatively
* **boards**
- `arduino-mega1280` : add support for the Arduino Mega 1280
- `arduino-nano-new` : Add Arduino Nano w/ New Bootloader target
- `atsame54-xpro` : add initial support this board
- `feather-m4-can` : add initial support for this board
- `grandcentral-m4` : add board support for Adafruit Grand Central M4 (SAMD51)
- `lgt92` : update to new UART structure
- `microbit` : remove LED constant
- `microbit-v2` : add support for S113 SoftDevice
- `nucleol432` : add support for this board
- `nucleo-l031k6` : add this board
- `pca10059` : initial support for this board
- `qtpy` : fix msd-volume-name
- `qtpy` : fix i2c setting
- `teensy40` : move txBuffer allocation to UART declaration
- `teensy40` : add UART0 as alias for UART1
0.17.0
---
* **command line**
- switch to LLVM 11 for static builds
- support gdb debugging with AVR
- add support for additional openocd commands
- add `-x` flag to print commands
- use LLVM 11 by default when linking LLVM dynamically
- update go-llvm to use LLVM 11 on macOS
- bump go.bug.st/serial to version 1.1.2
- do not build LLVM with libxml to work around a bugo on macOS
- add support for Go 1.16
- support gdb daemonization on Windows
- remove support for LLVM 9, to fix CI
- kill OpenOCD if it does not exit with a regular quit signal
- support `-ocd-output` on Windows
* **compiler**
- `builder` : parallelize most of the build
- `builder` : remove unused cacheKey parameter
- `builder` : add -mcpu flag while building libraries
- `builder` : wait for running jobs to finish
- `cgo` : add support for variadic functions
- `compiler` : fix undefined behavior in wordpack
- `compiler` : fix incorrect "exported function" panic
- `compiler` : fix non-int integer constants (fixing a crash)
- `compiler` : refactor and add tests
- `compiler` : emit a nil check when slicing an array pointer
- `compiler` : saturate float-to-int conversions
- `compiler` : test float to int conversions and fix upper-bound calculation
- `compiler` : support all kinds of deferred builtins
- `compiler` : remove ir package
- `compiler` : remove unnecessary main.main call workaround
- `compiler` : move the setting of attributes to getFunction
- `compiler` : create runtime types lazily when needed
- `compiler` : move settings to a separate Config struct
- `compiler` : work around an ARM backend bug in LLVM
- `interp` : rewrite entire package
- `interp` : fix alignment of untyped globals
- `loader` : use name "main" for the main package
- `loader` : support imports from vendor directories
- `stacksize` : add support for DW_CFA_offset_extended
- `transform` : show better error message in coroutines lowering
* **standard library**
- `machine` : accept configuration struct for ADC parameters
- `machine` : make I2C.Configure signature consistent
- `reflect` : implement PtrTo
- `runtime` : refactor to simplify stack switching
- `runtime` : put metadata at the top end of the heap
* **targets**
- `atsam` : add a length check to findPinPadMapping
- `atsam` : improve USBCDC
- `atsam` : avoid infinite loop when USBCDC is disconnected
- `avr` : add SPI support for Atmega based chips
- `avr` : use Clang for compiling C and assembly files
- `esp32` : implement task based scheduler
- `esp32` : enable the FPU
- `esp8266` : implement task based scheduler
- `esp` : add compiler-rt library
- `esp` : add picolibc
- `nrf` : refactor code a bit to reduce duplication
- `nrf` : use SPIM peripheral instead of the legacy SPI peripheral
- `nrf` : update nrfx submodule to latest commit
- `nrf52840` : ensure that USB CDC interface is only initialized once
- `nrf52840` : improve USBCDC
- `stm32` : use stm32-rs SVDs which are of much higher quality
- `stm32` : harmonization of UART logic
- `stm32` : replace I2C addressable interface with simpler type
- `stm32` : fix i2c and add stm32f407 i2c
- `stm32` : revert change that adds support for channels in interrupts
- `wasm` : implement a growable heap
- `wasm` : fix typo in wasm_exec.js, syscall/js.valueLoadString()
- `wasm` : Namespaced Wasm Imports so they don't conflict across modules, or reserved LLVM IR
- `wasi` : support env variables based on libc
- `wasi` : specify wasi-libc in a different way, to improve error message
* **boards**
- `matrixportal-m4` : add support for board Adafruit Matrix Portal M4
- `mkr1000` : add this board
- `nucleo-f722ze` : add this board
- `clue` : correct volume name and add alias for release version of Adafruit Clue board
- `p1am-100` : add support for the P1AM-100 (similar to Arduino MKR)
- `microbit-v2` : add initial support based on work done by @alankrantas thank you!
- `lgt92` : support for STM32L0 MCUs and Dragino LGT92 device
- `nicenano` : nice!nano board support
- `circuitplay-bluefruit` : correct internal I2C pin mapping
- `clue` : correct for lack of low frequency crystal
- `digispark` : split off attiny85 target
- `nucleo-l552ze` : implementation with CLOCK, LED, and UART
- `nrf52840-mdk-usb-dongle` : add this board
0.16.0
---
* **command-line**
- add initial support for LLVM 11
- make lib64 clang include path check more robust
- `build` : improve support for GOARCH=386 and add tests
- `gdb` : add support for qemu-user targets
- `test` : support non-host tests
- `test` : add support for -c and -o flags
- `test` : implement some benchmark stubs
* **compiler**
- `builder` : improve detection of clang on Fedora
- `compiler` : fix floating point comparison bugs
- `compiler` : implement negate for complex numbers
- `loader` : fix linkname in test binaries
- `transform` : add missing return pointer restore for regular coroutine tail
calls
* **standard library**
- `machine` : switch default frequency to 4MHz
- `machine` : clarify caller's responsibility in `SetInterrupt`
- `os` : add `LookupEnv()` stub
- `reflect` : implement `Swapper`
- `runtime` : fix UTF-8 decoding
- `runtime` : gc: use raw stack access whenever possible
- `runtime` : use dedicated printfloat32
- `runtime` : allow ranging over a nil map
- `runtime` : avoid device/nxp dependency in HardFault handler
- `testing` : implement dummy Helper method
- `testing` : add Run method
* **targets**
- `arm64` : add support for SVCall intrinsic
- `atsamd51` : avoid panic when configuring SPI with SDI=NoPin
- `avr` : properly support the `.rodata` section
- `esp8266` : implement `Pin.Get` function
- `nintendoswitch` : fix crash when printing long lines (> 120)
- `nintendoswitch` : add env parser and removed unused stuff
- `nrf` : add I2C error checking
- `nrf` : give more flexibility in picking SPI speeds
- `nrf` : fix nrf52832 flash size
- `stm32f103` : support wakeups from interrupts
- `stm32f405` : add SPI support
- `stm32f405` : add I2C support
- `wasi` : add support for this target
- `wasi` : use 'generic' ABI by default
- `wasi` : remove --no-threads flag from wasm-ld
- `wasm` : add instanceof support for WebAssembly
- `wasm` : use fixed length buffer for putchar
* **boards**
- `d1mini` : add this ESP8266 based board
- `esp32` : use board definitions instead of chip names
- `qtpy` : add board definition for Adafruit QTPy
- `teensy40` : add this board
0.15.0
---
* **command-line**
- add cached GOROOT to info subcommand
- embed git-hash in tinygo-dev executable
- implement tinygo targets to list usable targets
- use simpler file copy instead of file renaming to avoid issues on nrf52840 UF2 bootloaders
- use ToSlash() to specify program path
- support flashing esp32/esp8266 directly from tinygo
- when flashing call PortReset only on other than openocd
* **compiler**
- `compileopts` : add support for custom binary formats
- `compiler` : improve display of goroutine wrappers
- `interp` : don't panic in the Store method
- `interp` : replace some panics with error messages
- `interp` : show error line in first line of the traceback
- `loader` : be more robust when creating the cached GOROOT
- `loader` : rewrite/refactor much of the code to use go list directly
- `loader` : use ioutil.TempDir to create a temporary directory
- `stacksize` : deal with DW_CFA_advance_loc1
* **standard library**
- `runtime` : use waitForEvents when appropriate
* **wasm**
- `wasm` : Remove --no-threads from wasm-ld calls.
- `wasm` : update wasi-libc dependency
* **targets**
- `arduino-mega2560` : fix flashing on Windows
- `arm` : automatically determine stack sizes
- `arm64` : make dynamic loader structs and constants private
- `avr` : configure emulator in board files
- `cortexm` : fix stack size calculation with interrupts
- `flash` : add openocd settings to atsamd21 / atsamd51
- `flash` : add openocd settings to nrf5
- `microbit` : reelboard: flash using OpenOCD when needed
- `nintendoswitch` : Add dynamic loader for runtime loading PIE sections
- `nintendoswitch` : fix import cycle on dynamic_arm64.go
- `nintendoswitch` : Fix invalid memory read / write in print calls
- `nintendoswitch` : simplified assembly code
- `nintendoswitch` : support outputting .nro files directly
* **boards**
- `arduino-zero` : Adding support for the Arduino Zero (#1365)
- `atsamd2x` : fix BAUD value
- `atsamd5x` : fix BAUD value
- `bluepill` : Enable stm32's USART2 for the board and map it to UART1 tinygo's device
- `device/atsamd51x` : add all remaining bitfield values for PCHCTRLm Mapping
- `esp32` : add libgcc ROM functions to linker script
- `esp32` : add SPI support
- `esp32` : add support for basic GPIO
- `esp32` : add support for the Espressif ESP32 chip
- `esp32` : configure the I/O matrix for GPIO pins
- `esp32` : export machine.PortMask* for bitbanging implementations
- `esp8266` : add support for this chip
- `machine/atsamd51x,runtime/atsamd51x` : fixes needed for full support for all PWM pins. Also adds some useful constants to clarify peripheral clock usage
- `machine/itsybitsy-nrf52840` : add support for Adafruit Itsybitsy nrf52840 (#1243)
- `machine/stm32f4` : refactor common code and add new build tag stm32f4 (#1332)
- `nrf` : add SoftDevice support for the Circuit Playground Bluefruit
- `nrf` : call sd_app_evt_wait when the SoftDevice is enabled
- `nrf52840` : add build tags for SoftDevice support
- `nrf52840` : use higher priority for USB-CDC code
- `runtime/atsamd51x` : use PCHCTRL_GCLK_SERCOMX_SLOW for setting clocks on all SERCOM ports
- `stm32f405` : add basic UART handler
- `stm32f405` : add STM32F405 machine/runtime, and new board/target feather-stm32f405
* **build**
- `all` : run test binaries in the correct directory
- `build` : Fix arch release job
- `ci` : run `tinygo test` for known-working packages
- `ci` : set git-fetch-depth to 1
- `docker` : fix the problem with the wasm build (#1357)
- `Makefile` : check whether submodules have been downloaded in some common cases
* **docs**
- add ESP32, ESP8266, and Adafruit Feather STM32F405 to list of supported boards
0.14.1
---
* **command-line**
- support for Go 1.15
* **compiler**
- loader: work around Windows symlink limitation
0.14.0
---
* **command-line**
- fix `getDefaultPort()` on non-English Windows locales
- compileopts: improve error reporting of unsupported flags
- fix test subcommand
- use auto-retry to locate MSD for UF2 and HEX flashing
- fix touchSerialPortAt1200bps on Windows
- support package names with backslashes on Windows
* **compiler**
- fix a few crashes due to named types
- add support for atomic operations
- move the channel blocked list onto the stack
- fix -gc=none
- fix named string to `[]byte` slice conversion
- implement func value and builtin defers
- add proper parameter names to runtime.initAll, to fix a panic
- builder: fix picolibc include path
- builder: use newer version of gohex
- builder: try to determine stack size information at compile time
- builder: remove -opt=0
- interp: fix sync/atomic.Value load/store methods
- loader: add Go module support
- transform: fix debug information in func lowering pass
- transform: do not special-case zero or one implementations of a method call
- transform: introduce check for method calls on nil interfaces
- transform: gc: track 0-index GEPs to fix miscompilation
* **cgo**
- Add LDFlags support
* **standard library**
- extend stdlib to allow import of more packages
- replace master/slave terminology with appropriate alternatives (MOSI->SDO
etc)
- `internal/bytealg` : reimplement bytealg in pure Go
- `internal/task` : fix nil panic in (*internal/task.Stack).Pop
- `os` : add Args and stub it with mock data
- `os` : implement virtual filesystem support
- `reflect` : add Cap and Len support for map and chan
- `runtime` : fix return address in scheduler on RISC-V
- `runtime` : avoid recursion in printuint64 function
- `runtime` : replace ReadRegister with AsmFull inline assembly
- `runtime` : fix compilation errors when using gc.extalloc
- `runtime` : add cap and len support for chans
- `runtime` : refactor time handling (improving accuracy)
- `runtime` : make channels work in interrupts
- `runtime/interrupt` : add cross-chip disable/restore interrupt support
- `sync` : implement `sync.Cond`
- `sync` : add WaitGroup
* **targets**
- `arm` : allow nesting in DisableInterrupts and EnableInterrupts
- `arm` : make FPU configuration consistent
- `arm` : do not mask fault handlers in critical sections
- `atmega2560` : fix pin mapping for pins D2, D5 and the L port
- `atsamd` : return an error when an incorrect PWM pin is used
- `atsamd` : add support for pin change interrupts
- `atsamd` : add DAC support
- `atsamd21` : add more ADC pins
- `atsamd51` : fix ROM / RAM size on atsamd51j20
- `atsamd51` : add more pins
- `atsamd51` : add more ADC pins
- `atsamd51` : add pin change interrupt settings
- `atsamd51` : extend pinPadMapping
- `arduino-nano33` : use (U)SB flag to ensure that device can be found when
not on default port
- `arduino-nano33` : remove (d)ebug flag to reduce console noise when flashing
- `avr` : use standard pin numbering
- `avr` : unify GPIO pin/port code
- `avr` : add support for PinInputPullup
- `avr` : work around codegen bug in LLVM 10
- `avr` : fix target triple
- `fe310` : remove extra println left in by mistake
- `feather-nrf52840` : add support for the Feather nRF52840
- `maixbit` : add board definition and dummy runtime
- `nintendoswitch` : Add experimental Nintendo Switch support without CRT
- `nrf` : expose the RAM base address
- `nrf` : add support for pin change interrupts
- `nrf` : add microbit-s110v8 target
- `nrf` : fix bug in SPI.Tx
- `nrf` : support debugging the PCA10056
- `pygamer` : add Adafruit PyGamer support
- `riscv` : fix interrupt configuration bug
- `riscv` : disable linker relaxations during gp init
- `stm32f4disco` : add new target with ST-Link v2.1 debugger
- `teensy36` : add Teensy 3.6 support
- `wasm` : fix event handling
- `wasm` : add --no-demangle linker option
- `wioterminal` : add support for the Seeed Wio Terminal
- `xiao` : add support for the Seeed XIAO
0.13.1
---
* **standard library**
- `runtime` : do not put scheduler and GC code in the same section
- `runtime` : copy stack scan assembly for GBA
* **boards**
- `gameboy-advance` : always use ARM mode instead of Thumb mode
0.13.0
---
* **command line**
- use `gdb-multiarch` for debugging Cortex-M chips
- support `tinygo run` with simavr
- support LLVM 10
- support Go 1.14
- retry 3 times when attempting to do a 1200-baud reset
* **compiler**
- mark the `abort` function as noreturn
- fix deferred calls to exported functions
- add debug info for local variables
- check for channel size limit
- refactor coroutine lowering
- add `dereferenceable_or_null` attribute to pointer parameters
- do not perform nil checking when indexing slices and on `unsafe.Pointer`
- remove `runtime.isnil` hack
- use LLVM builtins for runtime `memcpy` /`memmove`/`memzero` functions
- implement spec-compliant shifts on negative/overflow
- support anonymous type asserts
- track pointer result of string concatenation for GC
- track PHI nodes for GC
- add debug info to goroutine start wrappers
- optimize comparing interface values against nil
- fix miscompilation when deferring an interface call
- builder: include picolibc for most baremetal targets
- builder: run tools (clang, lld) as separate processes
- builder: use `-fshort-enums` consistently
- interp: add support for constant type asserts
- interp: better support for interface operations
- interp: include backtrace with error
- transform: do not track const globals for GC
- transform: replace panics with source locations
- transform: fix error in interface lowering pass
- transform: make coroutine lowering deterministic
- transform: fix miscompilation in func lowering
* **cgo**
- make `-I` and `-L` paths absolute
* **standard library**
- `machine` : set the USB VID and PID to the manufacturer values
- `machine` : correct USB CDC composite descriptors
- `machine` : move `errors.New` calls to globals
- `runtime` : support operations on nil maps
- `runtime` : fix copy builtin return value on AVR
- `runtime` : refactor goroutines
- `runtime` : support `-scheduler=none` on most platforms
- `runtime` : run package initialization in the main goroutine
- `runtime` : export `malloc` / `free` for use from C
- `runtime` : add garbage collector that uses an external allocator
- `runtime` : scan callee-saved registers while marking the stack
- `runtime` : remove recursion from conservative GC
- `runtime` : fix blocking select on nil channel
- `runtime/volatile` : include `ReplaceBits` method
- `sync` : implement trivial `sync.Map`
* **targets**
- `arm` : use `-fomit-frame-pointer`
- `atmega1284` : support this chip for testing purposes
- `atsamd51` : make QSPI available on all boards
- `atsamd51` : add support for ADC1
- `atsamd51` : use new interrupt registration in UART code
- `attiny` : clean up pin definitions
- `avr` : use the correct RAM start address
- `avr` : pass the correct `-mmcu` flag to the linker
- `avr` : add support for tasks scheduler (disabled by default)
- `avr` : fix linker problem with overlapping program/data areas
- `nrf` : fix typo in pin configuration options
- `nrf` : add lib/nrfx/mdk to include dirs
- `nrf52840` : implement USB-CDC
- `riscv` : implement VirtIO target and add RISC-V integration test
- `riscv` : add I2C support for the HiFive1 rev B board
- `stm32` : refactor GPIO pin handling
- `stm32` : refactor UART code
- `stm32f4` : add SPI
- `wasm` : support Go 1.14 (breaking previous versions)
- `wasm` : support `syscall/js.CopyBytesToJS`
- `wasm` : sync polyfills from Go 1.14.
* **boards**
- `arduino-mega2560` : add the Arduino Mega 2560
- `clue-alpha` : add the Adafruit CLUE Alpha
- `gameboy-advance` : enable debugging with GDB
- `particle-argon` : add the Particle Argon board
- `particle-boron` : add the Particle Boron board
- `particle-xenon` : add the Particle Xenon board
- `reelboard` : add `reelboard-s140v7` SoftDevice target
0.12.0
---
* **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
0.11.0
---
* **command line**
- add support for QEMU in `gdb` subcommand
- use builtin Clang when building statically, dropping the clang-9 dependency
- search for default serial port on both macOS and Linux
- windows: support `tinygo flash` directly by using win32 wmi
* **compiler**
- add location information to the IR checker
- make reflection sidetables constant globals
- improve error locations in goroutine lowering
- interp: improve support for maps with string keys
- interp: add runtime fallback for mapassign operations
* **standard library**
- `machine` : add support for `SPI.Tx()` on play.tinygo.org
- `machine` : rename `CPU_FREQUENCY` to `CPUFrequency()`
* **targets**
- `adafruit-pybadge` : add Adafruit Pybadge
- `arduino-nano33` : allow simulation on play.tinygo.org
- `arduino-nano33` : fix default SPI pin numbers to be D13/D11/D12
- `circuitplay-express` : allow simulation on play.tinygo.org
- `hifive1-qemu` : add target for testing RISC-V bare metal in QEMU
- `riscv` : fix heap corruption due to changes in LLVM 9
- `riscv` : add support for compiler-rt
- `qemu` : rename to `cortex-m-qemu`
0.10.0
---
* **command line**
- halt GDB after flashing with `gdb` subcommand
- fix a crash when using `-ocd-output`
- add `info` subcommand
- add `-programmer` flag
* **builder**
- macos: use llvm@8 instead of just llvm in paths
- add `linkerscript` key to target JSON files
- write a symbol table when writing out the compiler-rt lib
- make Clang header detection more robust
- switch to LLVM 9
* **compiler**
- fix interface miscompilation with reflect
- fix miscompile of static goroutine calls to closures
- fix `todo: store` panic
- fix incorrect starting value for optimized allocations in a loop
- optimize coroutines on non-Cortex-M targets
- fix crash for programs which have heap allocations but never hit the GC
- add support for async interface calls
- fix inserting non-const values in a const global
- interp: improve error reporting
- interp: implement comparing ptrtoint to 0
* **cgo**
- improve diagnostics
- implement the constant parser (for `#define` ) as a real parser
- rename reserved field names such as `type`
- avoid `"unsafe" imported but not used` error
- include all enums in the CGo Go AST
- add support for nested structs and unions
- implement `#cgo CFLAGS`
* **standard library**
- `reflect` : add implementation of array alignment
- `runtime` : improve scheduler performance when no goroutines are queued
- `runtime` : add blocking select
- `runtime` : implement interface equality in non-trivial cases
- `runtime` : add AdjustTimeOffset to update current time
- `runtime` : only implement CountString for required platforms
- `runtime` : use MSP/PSP registers for scheduling on Cortex-M
* **targets**
- `arm` : add system timer registers
- `atmega` : add port C GPIO support
- `atsamd21` : correct handling of pins >= 32
- `atsamd21` : i2s initialization fixes
- `atsamd51` : fix clock init code
- `atsamd51` : correct initialization for RTC
- `atsamd51` : fix pin function selection
- `atsamd51` : pin method cleanup
- `atsamd51` : allow setting pin mode for each of the SPI pins
- `atsamd51` : correct channel init and pin map for ADC based on ItsyBitsy-M4
- `feather-m4` : add Adafruit Feather M4 board
- `hifive1b` : add support for SPI1
- `hifive1b` : fix compiling in simulation
- `linux` : fix time on arm32
- `metro-m4` : add support for Adafruit Metro M4 Express Airlift board
- `metro-m4` : fixes for UART2
- `pinetime-devkit0` : add support for the PineTime dev kit
- `x9pro` : add support for this smartwatch
- `pca10040-s132v6` : add support for SoftDevice
- `pca10056-s140v7` : add support for SoftDevice
- `arduino-nano33` : added SPI1 connected to NINA-W102 chip on Arduino Nano 33 IOT
0.9.0
---
* **command line**
- implement 1200-baud UART bootloader reset when flashing boards that support
it
- flash using mass-storage device for boards that support it
- implement `tinygo env`
- add support for Windows (but not yet producing Windows binaries)
- add Go version to `tinygo env`
- update SVD files for up-to-date peripheral interfaces
* **compiler**
- add `//go:align` pragma
- fix bug related to type aliases
- add support for buffered channels
- remove incorrect reflect optimization
- implement copying slices in init interpretation
- add support for constant indices with a named type
- add support for recursive types like linked lists
- fix miscompile of function nil panics
- fix bug related to goroutines
* **standard library**
- `machine` : do not check for nil slices in `SPI.Tx`
- `reflectlite` : add support for Go 1.13
- `runtime` : implement `internal/bytealg.CountString`
- `sync` : properly handle nil `New` func in `sync.Pool`
* **targets**
- `arduino` : fix .bss section initialization
- `fe310` : implement `Pin.Get`
- `gameboy-advance` : support directly outputting .gba files
- `samd` : reduce code size by avoiding reflection
- `samd21` : do not hardcode pin numbers for peripherals
- `stm32f103` : avoid issue with `time.Sleep` less than 200µs
0.8.0
---
* **command line**
- fix parsing of beta Go versions
- check the major/minor installed version of Go before compiling
- validate `-target` flag better to not panic on an invalid target
* **compiler**
- implement full slice expression: `s[:2:4]`
- fix a crash when storing a linked list in an interface
- fix comparing struct types by making type IDs more unique
- fix some bugs in IR generation
- add support for linked lists in reflect data
- implement `[]rune` to string conversion
- implement support for `go` on func values
* **standard library**
- `reflect` : add support for named types
- `reflect` : add support for `t.Bits()`
- `reflect` : add basic support for `t.AssignableTo()`
- `reflect` : implement `t.Align()`
- `reflect` : add support for struct types
- `reflect` : fix bug in `v.IsNil` and `v.Pointer` for addressable values
- `reflect` : implement support for array types
- `reflect` : implement `t.Comparable()`
- `runtime` : implement stack-based scheduler
- `runtime` : fix bug in the sleep queue of the scheduler
- `runtime` : implement `memcpy` for Cortex-M
- `testing` : implement stub `testing.B` struct
- `testing` : add common test logging methods such as Errorf/Fatalf/Printf
* **targets**
- `386` : add support for linux/386 syscalls
- `atsamd21` : make SPI pins configurable so that multiple SPI ports can be
used
- `atsamd21` : correct issue with invalid first reading coming from ADC
- `atsamd21` : add support for reset-to-bootloader using 1200baud over USB-CDC
- `atsamd21` : make pin selection more flexible for peripherals
- `atsamd21` : fix minimum delay in `time.Sleep`
- `atsamd51` : fix minimum delay in `time.Sleep`
- `nrf` : improve SPI write-only speed, by making use of double buffering
- `stm32f103` : fix SPI frequency selection
- `stm32f103` : add machine.Pin.Get method for reading GPIO values
- `stm32f103` : allow board specific UART usage
- `nucleo-f103rb` : add support for NUCLEO-F103RB board
- `itsybitsy-m4` : add support for this board with a SAMD51 family chip
- `cortex-m` : add support for `arm.SystemReset()`
- `gameboy-advance` : add initial support for the GameBoy Advance
- `wasm` : add `//go:wasm-module` magic comment to set the wasm module name
- `wasm` : add syscall/js.valueSetIndex support
- `wasm` : add syscall/js.valueInvoke support
0.7.1
---
* **targets**
- `atsamd21` : add support for the `-port` flag in the flash subcommand
0.7.0
---
* **command line**
- try more locations to find Clang built-in headers
- add support for `tinygo test`
- build current directory if no package is specified
- support custom .json target spec with `-target` flag
- use zversion.go to detect version of GOROOT version
- make initial heap size configurable for some targets (currently WebAssembly
only)
* **cgo**
- add support for bitfields using generated getters and setters
- add support for anonymous structs
* **compiler**
- show an error instead of panicking on duplicate function definitions
- allow packages like github.com/tinygo-org/tinygo/src/\* by aliasing it
- remove `//go:volatile` support
It has been replaced with the runtime/volatile package.
- allow poiners in map keys
- support non-constant syscall numbers
- implement non-blocking selects
- add support for the `-tags` flag
- add support for `string` to `[]rune` conversion
- implement a portable conservative garbage collector (with support for wasm)
- add the `//go:noinline` pragma
* **standard library**
- `os` : add `os.Exit` and `syscall.Exit`
- `os` : add several stubs
- `runtime` : fix heap corruption in conservative GC
- `runtime` : add support for math intrinsics where supported, massively
speeding up some benchmarks
- `testing` : add basic support for testing
* **targets**
- add support for a generic target that calls `__tinygo_*` functions for
peripheral access
- `arduino-nano33` : add support for this board
- `hifive1` : add support for this RISC-V board
- `reelboard` : add e-paper pins
- `reelboard` : add `PowerSupplyActive` to enable voltage for on-board devices
- `wasm` : put the stack at the start of linear memory, to detect stack
overflows
0.6.0
---
* **command line**
- some portability improvements
- make `$GOROOT` more robust and configurable
- check for Clang at the Homebrew install location as fallback
* **compiler driver**
- support multiple variations of LLVM commands, for non-Debian distributions
* **compiler**
- improve code quality in multiple ways
- make panic configurable, adding trap on panic
- refactor many internal parts of the compiler
- print all errors encountered during compilation
- implement calling function values of a named type
- implement returning values from blocking functions
- allow larger-than-int values to be sent across a channel
- implement complex arithmetic
- improve hashmap support
- add debuginfo for function arguments
- insert nil checks on stores (increasing code size)
- implement volatile operations as compiler builtins
- add `//go:inline` pragma
- add build tags for the Go stdlib version
* **cgo**
- implement `char` , `enum` and `void*` types
- support `#include` for builtin headers
- improve typedef/struct/enum support
- only include symbols that are necessary, for broader support
- mark external function args as `nocapture`
- implement support for some `#define` constants
- implement support for multiple CGo files in a single package
- **standard library**
- `machine` : remove microbit matrix (moved to drivers repository)
- `machine` : refactor pins to use `Pin` type instead of `GPIO`
- `runtime` : print more interface types on panic, including `error`
* **targets**
- `arm` : print an error on HardFault (including stack overflows)
- `atsamd21` : fix a bug in the ADC peripheral
- `atsamd21` : add support for I2S
- `feather-m0` : add support for this board
- `nrf51` : fix a bug in I2C
- `stm32f103xx` : fix a bug in I2C
- `syscall` : implement `Exit` on unix
- `trinket-m0` : add support for this board
- `wasm` : make _main_ example smaller
- `wasm` : don't cache wasm file in the server, for ease of debugging
- `wasm` : work around bug #41508 that caused a deadlock while linking
- `wasm` : add support for `js.FuncOf`
0.5.0
---
- **compiler driver**
- use `wasm-ld` instead of `wasm-ld-8` on macOS
- drop dependency on `llvm-ar`
- fix linker script includes when running outside `TINYGOROOT`
- **compiler**
- switch to LLVM 8
- add support for the Go 1.12 standard library (Go 1.11 is still supported)
- work around lack of escape analysis due to nil checks
- implement casting named structs and pointers to them
- fix int casting to use the source signedness
- fix some bugs around `make([]T, …)` with uncommon index types
- some other optimizations
- support interface asserts in interp for "math/rand" support
- resolve all func value targets at compile time (wasm-only at the moment)
- **cgo**
- improve diagnostics
- implement C `struct` , `union` , and arrays
- fix CGo-related crash in libclang
- implement `C.struct_` types
- **targets**
- all baremetal: pretend to be linux/arm instead of js/wasm
- `avr` : improve `uintptr` support
- `cortexm` : implement memmove intrinsic generated by LLVM
- `cortexm` : use the lld linker instead of `arm-none-eabi-ld`
- `darwin` : use custom syscall package that links to libSystem.dylib
- `microbit` : add blink example
- `samd21` : support I2C1
- `samd21` : machine/atsamd21: correct pad/pin handling when using both UART
and USBCDC interfaces at same time
- `stm32f4discovery` : add support for this board
- `wasm` : support async func values
- `wasm` : improve documentation and add extra example
0.4.1
---
- **compiler**
- fix `objcopy` replacement to include the .data section in the firmware image
- use `llvm-ar-7` on Linux to fix the Docker image
0.4.0
---
- **compiler**
- switch to the hardfloat ABI on ARM, which is more widely used
- avoid a dependency on `objcopy` (`arm-none-eabi-objcopy` etc.)
- fix a bug in `make([]T, n)` where `n` is 64-bits on a 32-bit platform
- adapt to a change in the AVR backend in LLVM 8
- directly support the .uf2 firmware format as used on Adafruit boards
- fix a bug when calling `panic()` at init time outside of the main package
- implement nil checks, which results in a ~5% increase in code size
- inline slice bounds checking, which results in a ~1% decrease in code size
- **targets**
- `samd21` : fix a bug in port B pins
- `samd21` : implement SPI peripheral
- `samd21` : implement ADC peripheral
- `stm32` : fix a bug in timekeeping
- `wasm` : fix a bug in `wasm_exec.js` that caused corruption in linear memory
when running on Node.js.
0.3.0
---
- **compiler**
- remove old `-initinterp` flag
- add support for macOS
- **cgo**
- add support for bool/float/complex types
- **standard library**
- `device/arm` : add support to disable/enable hardware interrupts
- `machine` : add CPU frequency for nrf-based boards
- `syscall` : add support for darwin/amd64
- **targets**
- `circuitplay_express` : add support for this board
- `microbit` : add regular pin constants
- `samd21` : fix time function for goroutine support
- `samd21` : add support for USB-CDC (serial over USB)
- `samd21` : add support for pins in port B
- `samd21` : add support for pullup and pulldown pins
- `wasm` : add support for Safari in example
0.2.0
---
- **command line**
- add version subcommand
- **compiler**
- fix a bug in floating point comparisons with NaN values
- fix a bug when calling `panic` in package initialization code
- add support for comparing `complex64` and `complex128`
- **cgo**
- add support for external globals
- add support for pointers and function pointers
- **standard library**
- `fmt` : initial support, `fmt.Println` works
- `math` : support for most/all functions
- `os` : initial support (only stdin/stdout/stderr)
- `reflect` : initial support
- `syscall` : add support for amd64, arm, and arm64
