This fixes the new loop variable behavior in Go 1.22.
Specifically:
* The compiler (actually, the x/tools/go/ssa package) now correctly
picks up the Go version.
* If a module doesn't specify the Go version, the current Go version
(from the `go` tool and standard library) is used. This fixes
`go run`.
* The tests in testdata/ that use a separate directory are now
actually run in that directory. This makes it possible to use a
go.mod file there.
* There is a test to make sure old Go modules still work with the old
Go behavior, even on a newer Go version.
This function is needed for Go 1.22, and is used from various packages
like math/rand.
When there is no random number generator available, it falls back to a
static sequence of numbers. I think this is fine, because as far as I
can see it is only used for non-cryptographic needs.
A few non-generic functions like HashStrBytes have been kept for
backwards compatibility, so this package should continue to work with
older Go versions (as long as they support generics).
The right-hand grove port on the wioterminal can be used as UART, using
D0/D1 pins. The pins D0/D1 are tied to SERCOM4, so this patch exposes a
UART4 for sercom4 access.
RX = A0/D0 = PB08/SERCOM4.0 (port 4 pad 0)
TX = A1/D1 = PB09/SERCOM4.1 (port 4 pad 1)
Tested with Lora E5 UART.
uart : = machine.UART4
tx := machine.D0
rx := machine.D1
Note: must also cross Tx/Rx wires in grove cable. See
https://www.lucadentella.it/en/2022/01/29/wio-terminal-porta-grove-di-destra-e-moduli-uart/
* stub out more types/funcs to compile against golang.org/x/net/internal/socket
These are changes need to compile github.com/domainr/dnsr/ with TinyGo.
See issue https://github.com/tinygo-org/net/issues/14.
These change are mostly to fix missing symbols in src/crypto/tls and
src/net. Missing types and functions are cut-and-pasted from go1.21.4.
Functions are stubbed out returning errors.New("not implemented").
DNRS is compiled by running tinygo test:
sfeldma@nuc:~/work/dnsr$ tinygo test -target=wasi
With this patch, and a corresponding patch for tinygo-org/net to fixup
src/net, you should get a clean compile.
Thanks to @aykevl for actually finding and providing this fix, I really just
reported the problem and tested the fix.
Signed-off-by: deadprogram <ron@hybridgroup.com>
This PR adds a network device driver model called netdev. There will be a companion PR for TinyGo drivers to update the netdev drivers and network examples. This PR covers the core "net" package.
An RFC for the work is here: #tinygo-org/drivers#487. Some things have changed from the RFC, but nothing major.
The "net" package is a partial port of Go's "net" package, version 1.19.3. The src/net/README file has details on what is modified from Go's "net" package.
Most "net" features are working as they would in normal Go. TCP/UDP/TLS protocol support is there. As well as HTTP client and server support. Standard Go network packages such as golang.org/x/net/websockets and Paho MQTT client work as-is. Other packages are likely to work as-is.
Testing results are here (https://docs.google.com/spreadsheets/d/e/2PACX-1vT0cCjBvwXf9HJf6aJV2Sw198F2ief02gmbMV0sQocKT4y4RpfKv3dh6Jyew8lQW64FouZ8GwA2yjxI/pubhtml?gid=1013173032&single=true).
Ayke van Laethem
deadprogram
BCG
Scott Feldman
Elias Naur
Yurii Soldak
Dmitriy