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@aykevl aykevl released this Nov 26, 2019 · 107 commits to master since this release

This release adds support for blocking select, switches to LLVM 9, improves CGo support, improves support for the ATSAMD51 ("M4") chip, and generally has a lot of improvements and bug fixes throughout. It also adds support for a number of new boards: the Adafruit Feather M4, the Adafruit Metro M4 Express AirLift, the PineTime dev kit, and the "X9 Pro" smartwatch.

  • 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 IO
Assets 8
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