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  • v0.34.0 2a76ceb7dd
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    jwetzell released this 2024-10-25 17:22:40 +00:00 | 769 commits to dev since this release

    📅 Originally published on GitHub: Sat, 26 Oct 2024 08:39:56 GMT
    🏷️ Git tag created: Fri, 25 Oct 2024 17:22:40 GMT

    This release adds support for //go:wasmexport that is a standardized way to export WebAssembly functions to the host, improves garbage collection performance (especially on wasm), adds big-endian MIPS support (GOOS=mips), and adds two new boards! It also contains a number of smaller improvements and bug fixes.

    • general
      • fix GOOS=wasip1 for tinygo test
      • add -C DIR flag
      • add initial documentation for project governance
      • add -ldflags='-extldflags=...' support
      • improve usage message with tinygo help and when passing invalid parameters
    • compiler
      • builder: remove environment variables when invoking Clang, to avoid the environment changing the behavior
      • builder: check for the Go toolchain version used to compile TinyGo
      • cgo: add C.CBytes implementation
      • compiler: fix passing weirdly-padded structs as parameters to new goroutines
      • compiler: support pragmas on generic functions
      • compiler: do not let the slice buffer escape when casting a []byte or []rune to a string, to help escape analysis
      • compiler: conform to the latest iteration of the wasm types proposal
      • loader: don't panic when main package is not named 'main'
      • loader: make sure we always return type checker errors even without type errors
      • transform: optimize range over []byte(string)
    • standard library
      • crypto/x509: add package stub to build crypto/x509 on macOS
      • machine/usb/adc/midi: fix PitchBend
      • os: add Truncate stub for baremetal
      • os: add stubs for os.File deadlines
      • os: add internal net.newUnixFile for the net package
      • runtime: stub runtime_{Before,After}Exec for linkage
      • runtime: randomize map accesses
      • runtime: support maps.Clone
      • runtime: add more fields to MemStats
      • runtime: implement newcoro, coroswitch to support package iter
      • runtime: disallow defer in interrupts
      • runtime: add support for os/signal on Linux and MacOS
      • runtime: add gc layout info for some basic types to help the precise GC
      • runtime: bump GC mark stack size to avoid excessive heap rescans
    • targets
      • darwin: use Go standard library syscall package instead of a custom one
      • fe310: support GPIO PinInput
      • mips: fix compiler crash with GOMIPS=softfloat and defer
      • mips: add big-endian (GOARCH=mips) support
      • mips: use MIPS32 (instead of MIPS32R2) as the instruction set for wider compatibility
      • wasi: add relative and absolute --dir options to wasmtime args
      • wasip2: add wasmtime -S args to support network interfaces
      • wasm: add //go:wasmexport support (for all WebAssembly targets)
      • wasm: use precise instead of conservative GC for WebAssembly (including WASI)
      • wasm-unknown: add bulk memory flags since basically every runtime has it now
    • boards
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