Impossible stack trace...

.circleci/config.yml

@@ -98,9 +98,9 @@ commands:
             - /go/pkg/mod
 
 jobs:
-  test-llvm15-go119:
+  test-llvm15-go118:
     docker:
-      - image: golang:1.19-bullseye
+      - image: golang:1.18-bullseye
     steps:
       - test-linux:
           llvm: "15"
@@ -118,6 +118,6 @@ workflows:
     jobs:
       # This tests our lowest supported versions of Go and LLVM, to make sure at
       # least the smoke tests still pass.
-      - test-llvm15-go119
+      - test-llvm15-go118
       # This tests LLVM 18 support when linking against system libraries.
       - test-llvm18-go122

BUILDING.md

@@ -18,7 +18,7 @@ tarball. If you want to help with development of TinyGo itself, you should follo
 LLVM, Clang and LLD are quite light on dependencies, requiring only standard
 build tools to be built. Go is of course necessary to build TinyGo itself.
 
-  * Go (1.19+)
+  * Go (1.18+)
   * GNU Make
   * Standard build tools (gcc/clang)
   * git

CHANGELOG.md

@@ -1,61 +1,3 @@
-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 existance
-
-* **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
 ---
 

GNUmakefile

@@ -491,7 +491,7 @@ smoketest:
 	@$(MD5SUM) test.hex
 	$(TINYGO) build -size short -o test.hex -target=nano-rp2040         examples/rtcinterrupt
 	@$(MD5SUM) test.hex
-	$(TINYGO) build -size short -o test.hex -target=pca10040            examples/machinetest
+	$(TINYGO) build -size short -o test.hex -target=pca10040            examples/serial
 	@$(MD5SUM) test.hex
 	$(TINYGO) build -size short -o test.hex -target=pca10040            examples/systick
 	@$(MD5SUM) test.hex
@@ -523,7 +523,7 @@ ifneq ($(WASM), 0)
 	@$(MD5SUM) test.wasm
 	$(TINYGO) build -size short -o test.wasm -tags=circuitplay_bluefruit examples/blinky1
 	@$(MD5SUM) test.wasm
-	$(TINYGO) build -size short -o test.wasm -tags=mch2022              examples/machinetest
+	$(TINYGO) build -size short -o test.wasm -tags=mch2022              examples/serial
 	@$(MD5SUM) test.wasm
 	$(TINYGO) build -size short -o test.wasm -tags=gopher_badge         examples/blinky1
 	@$(MD5SUM) test.wasm
@@ -621,7 +621,7 @@ endif
 	@$(MD5SUM) test.hex
 	$(TINYGO) build -size short -o test.hex -target=itsybitsy-nrf52840  examples/blinky1
 	@$(MD5SUM) test.hex
-	$(TINYGO) build -size short -o test.hex -target=qtpy                examples/machinetest
+	$(TINYGO) build -size short -o test.hex -target=qtpy                examples/serial
 	@$(MD5SUM) test.hex
 	$(TINYGO) build -size short -o test.hex -target=teensy41            examples/blinky1
 	@$(MD5SUM) test.hex
@@ -693,7 +693,7 @@ endif
 	@$(MD5SUM) test.hex
 	$(TINYGO) build -size short -o test.hex -target=feather-nrf52840    examples/usb-midi
 	@$(MD5SUM) test.hex
-	$(TINYGO) build -size short -o test.hex -target=nrf52840-s140v6-uf2-generic	examples/machinetest
+	$(TINYGO) build -size short -o test.hex -target=nrf52840-s140v6-uf2-generic	examples/serial
 	@$(MD5SUM) test.hex
 ifneq ($(STM32), 0)
 	$(TINYGO) build -size short -o test.hex -target=bluepill            examples/blinky1
@@ -735,7 +735,7 @@ ifneq ($(STM32), 0)
 endif
 	$(TINYGO) build -size short -o test.hex -target=atmega328pb         examples/blinkm
 	@$(MD5SUM) test.hex
-	$(TINYGO) build -size short -o test.hex -target=atmega1284p         examples/machinetest
+	$(TINYGO) build -size short -o test.hex -target=atmega1284p         examples/serial
 	@$(MD5SUM) test.hex
 	$(TINYGO) build -size short -o test.hex -target=arduino             examples/blinky1
 	@$(MD5SUM) test.hex
@@ -762,22 +762,22 @@ ifneq ($(XTENSA), 0)
 	@$(MD5SUM) test.bin
 	$(TINYGO) build -size short -o test.bin -target=nodemcu             examples/blinky1
 	@$(MD5SUM) test.bin
-	$(TINYGO) build -size short -o test.bin -target m5stack-core2       examples/machinetest
+	$(TINYGO) build -size short -o test.bin -target m5stack-core2       examples/serial
 	@$(MD5SUM) test.bin
-	$(TINYGO) build -size short -o test.bin -target m5stack             examples/machinetest
+	$(TINYGO) build -size short -o test.bin -target m5stack             examples/serial
 	@$(MD5SUM) test.bin
-	$(TINYGO) build -size short -o test.bin -target m5stick-c           examples/machinetest
+	$(TINYGO) build -size short -o test.bin -target m5stick-c           examples/serial
 	@$(MD5SUM) test.bin
-	$(TINYGO) build -size short -o test.bin -target m5paper             examples/machinetest
+	$(TINYGO) build -size short -o test.bin -target m5paper             examples/serial
 	@$(MD5SUM) test.bin
-	$(TINYGO) build -size short -o test.bin -target mch2022             examples/machinetest
+	$(TINYGO) build -size short -o test.bin -target mch2022             examples/serial
 	@$(MD5SUM) test.bin
 endif
-	$(TINYGO) build -size short -o test.bin -target=qtpy-esp32c3        examples/machinetest
+	$(TINYGO) build -size short -o test.bin -target=qtpy-esp32c3        examples/serial
 	@$(MD5SUM) test.bin
-	$(TINYGO) build -size short -o test.bin -target=m5stamp-c3          examples/machinetest
+	$(TINYGO) build -size short -o test.bin -target=m5stamp-c3          examples/serial
 	@$(MD5SUM) test.bin
-	$(TINYGO) build -size short -o test.bin -target=xiao-esp32c3        examples/machinetest
+	$(TINYGO) build -size short -o test.bin -target=xiao-esp32c3        examples/serial
 	@$(MD5SUM) test.bin
 	$(TINYGO) build -size short -o test.hex -target=hifive1b            examples/blinky1
 	@$(MD5SUM) test.hex

builder/build.go

@@ -243,6 +243,7 @@ func Build(pkgName, outpath, tmpdir string, config *compileopts.Config) (BuildRe
 	// Create the *ssa.Program. This does not yet build the entire SSA of the
 	// program so it's pretty fast and doesn't need to be parallelized.
 	program := lprogram.LoadSSA()
+	program.Build()
 
 	// Add jobs to compile each package.
 	// Packages that have a cache hit will not be compiled again.
@@ -354,8 +355,8 @@ func Build(pkgName, outpath, tmpdir string, config *compileopts.Config) (BuildRe
 		packageActionIDJobs[pkg.ImportPath] = packageActionIDJob
 
 		// Build the SSA for the given package.
-		ssaPkg := program.Package(pkg.Pkg)
-		ssaPkg.Build()
+		//ssaPkg := program.Package(pkg.Pkg)
+		//ssaPkg.Build()
 
 		// Now create the job to actually build the package. It will exit early
 		// if the package is already compiled.
@@ -370,7 +371,12 @@ func Build(pkgName, outpath, tmpdir string, config *compileopts.Config) (BuildRe
 
 				if _, err := os.Stat(job.result); err == nil {
 					// Already cached, don't recreate this package.
-					return nil
+					switch pkg.ImportPath {
+					case "context": // seems to be needed
+					case "time": // often crashes in this package, so probably needed
+					default:
+						return nil
+					}
 				}
 
 				// Compile AST to IR. The compiler.CompilePackage function will
@@ -517,6 +523,8 @@ func Build(pkgName, outpath, tmpdir string, config *compileopts.Config) (BuildRe
 		run: func(*compileJob) error {
 			// Load and link all the bitcode files. This does not yet optimize
 			// anything, it only links the bitcode files together.
+			println("exit")
+			os.Exit(0)
 			ctx := llvm.NewContext()
 			mod = ctx.NewModule("main")
 			for _, pkgJob := range packageJobs {

builder/config.go

@@ -27,10 +27,10 @@ func NewConfig(options *compileopts.Options) (*compileopts.Config, error) {
 	if err != nil {
 		return nil, err
 	}
-	if major != 1 || minor < 19 || minor > 22 {
+	if major != 1 || minor < 18 || minor > 22 {
 		// Note: when this gets updated, also update the Go compatibility matrix:
 		// https://github.com/tinygo-org/tinygo-site/blob/dev/content/docs/reference/go-compat-matrix.md
-		return nil, fmt.Errorf("requires go version 1.19 through 1.22, got go%d.%d", major, minor)
+		return nil, fmt.Errorf("requires go version 1.18 through 1.22, got go%d.%d", major, minor)
 	}
 
 	return &compileopts.Config{

cgo/const.go

@@ -17,8 +17,6 @@ var (
 		token.OR:  precedenceOr,
 		token.XOR: precedenceXor,
 		token.AND: precedenceAnd,
-		token.SHL: precedenceShift,
-		token.SHR: precedenceShift,
 		token.ADD: precedenceAdd,
 		token.SUB: precedenceAdd,
 		token.MUL: precedenceMul,
@@ -27,13 +25,11 @@ var (
 	}
 )
 
-// See: https://en.cppreference.com/w/c/language/operator_precedence
 const (
 	precedenceLowest = iota + 1
 	precedenceOr
 	precedenceXor
 	precedenceAnd
-	precedenceShift
 	precedenceAdd
 	precedenceMul
 	precedencePrefix
@@ -86,7 +82,7 @@ func parseConstExpr(t *tokenizer, precedence int) (ast.Expr, *scanner.Error) {
 
 	for t.peekToken != token.EOF && precedence < precedences[t.peekToken] {
 		switch t.peekToken {
-		case token.OR, token.XOR, token.AND, token.SHL, token.SHR, token.ADD, token.SUB, token.MUL, token.QUO, token.REM:
+		case token.OR, token.XOR, token.AND, token.ADD, token.SUB, token.MUL, token.QUO, token.REM:
 			t.Next()
 			leftExpr, err = parseBinaryExpr(t, leftExpr)
 		}
@@ -209,19 +205,13 @@ func (t *tokenizer) Next() {
 			// https://en.cppreference.com/w/cpp/string/byte/isspace
 			t.peekPos++
 			t.buf = t.buf[1:]
-		case len(t.buf) >= 2 && (string(t.buf[:2]) == "||" || string(t.buf[:2]) == "&&" || string(t.buf[:2]) == "<<" || string(t.buf[:2]) == ">>"):
+		case len(t.buf) >= 2 && (string(t.buf[:2]) == "||" || string(t.buf[:2]) == "&&"):
 			// Two-character tokens.
 			switch c {
 			case '&':
 				t.peekToken = token.LAND
 			case '|':
 				t.peekToken = token.LOR
-			case '<':
-				t.peekToken = token.SHL
-			case '>':
-				t.peekToken = token.SHR
-			default:
-				panic("unreachable")
 			}
 			t.peekValue = t.buf[:2]
 			t.buf = t.buf[2:]

cgo/const_test.go

@@ -40,10 +40,6 @@ func TestParseConst(t *testing.T) {
 		{`5&5`, `5 & 5`},
 		{`5|5`, `5 | 5`},
 		{`5^5`, `5 ^ 5`},
-		{`5<<5`, `5 << 5`},
-		{`5>>5`, `5 >> 5`},
-		{`5>>5 + 3`, `5 >> (5 + 3)`},
-		{`5>>5 ^ 3`, `5>>5 ^ 3`},
 		{`5||5`, `error: 1:2: unexpected token ||, expected end of expression`}, // logical binops aren't supported yet
 		{`(5/5)`, `(5 / 5)`},
 		{`1 - 2`, `1 - 2`},

compiler/interface.go

@@ -514,7 +514,8 @@ var basicTypeNames = [...]string{
 func getTypeCodeName(t types.Type) (string, bool) {
 	switch t := t.(type) {
 	case *types.Named:
-		if t.Obj().Parent() != t.Obj().Pkg().Scope() {
+		// Note: check for `t.Obj().Pkg() != nil` for Go 1.18 only.
+		if t.Obj().Pkg() != nil && t.Obj().Parent() != t.Obj().Pkg().Scope() {
 			return "named:" + t.String() + "$local", true
 		}
 		return "named:" + t.String(), false

go.mod

@@ -1,6 +1,6 @@
 module github.com/tinygo-org/tinygo
 
-go 1.19
+go 1.18
 
 require (
 	github.com/aykevl/go-wasm v0.0.2-0.20240312204833-50275154210c
@@ -14,12 +14,12 @@ require (
 	github.com/marcinbor85/gohex v0.0.0-20200531091804-343a4b548892
 	github.com/mattn/go-colorable v0.1.13
 	github.com/mattn/go-tty v0.0.4
-	github.com/mgechev/revive v1.3.7
+	github.com/mgechev/revive v1.3.4
 	github.com/sigurn/crc16 v0.0.0-20211026045750-20ab5afb07e3
 	go.bug.st/serial v1.6.0
-	golang.org/x/net v0.26.0
-	golang.org/x/sys v0.21.0
-	golang.org/x/tools v0.21.1-0.20240508182429-e35e4ccd0d2d
+	golang.org/x/net v0.20.0
+	golang.org/x/sys v0.16.0
+	golang.org/x/tools v0.14.1-0.20231101221057-75ff53bc6b14
 	gopkg.in/yaml.v2 v2.4.0
 	tinygo.org/x/go-llvm v0.0.0-20240518103902-697964f2a9dc
 )
@@ -43,7 +43,5 @@ require (
 	github.com/olekukonko/tablewriter v0.0.5 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/spf13/afero v1.11.0 // indirect
-	golang.org/x/text v0.16.0 // indirect
+	golang.org/x/text v0.14.0 // indirect
 )
-
-replace golang.org/x/tools => github.com/tinygo-org/tools v0.0.0-20240612102102-36af80766fc9

go.sum

@@ -57,6 +57,7 @@ github.com/mattn/go-tty v0.0.4 h1:NVikla9X8MN0SQAqCYzpGyXv0jY7MNl3HOWD2dkle7E=
 github.com/mattn/go-tty v0.0.4/go.mod h1:u5GGXBtZU6RQoKV8gY5W6UhMudbR5vXnUe7j3pxse28=
 github.com/mgechev/dots v0.0.0-20210922191527-e955255bf517 h1:zpIH83+oKzcpryru8ceC6BxnoG8TBrhgAvRg8obzup0=
 github.com/mgechev/dots v0.0.0-20210922191527-e955255bf517/go.mod h1:KQ7+USdGKfpPjXk4Ga+5XxQM4Lm4e3gAogrreFAYpOg=
+github.com/mgechev/revive v1.3.4/go.mod h1:W+pZCMu9qj8Uhfs1iJMQsEFLRozUfvwFwqVvRbSNLVw=
 github.com/mgechev/revive v1.3.7 h1:502QY0vQGe9KtYJ9FpxMz9rL+Fc/P13CI5POL4uHCcE=
 github.com/mgechev/revive v1.3.7/go.mod h1:RJ16jUbF0OWC3co/+XTxmFNgEpUPwnnA0BRllX2aDNA=
 github.com/mitchellh/go-homedir v1.1.0 h1:lukF9ziXFxDFPkA1vsr5zpc1XuPDn/wFntq5mG+4E0Y=
@@ -80,14 +81,11 @@ github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/
 github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
 github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk=
 github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
-github.com/tinygo-org/tools v0.0.0-20240612102102-36af80766fc9 h1:t8VQNFa68kSA8ze7gi8kSxF22a7/vmr1OtOPLvgO3+8=
-github.com/tinygo-org/tools v0.0.0-20240612102102-36af80766fc9/go.mod h1:aCwcsjqvq7Yqt6TNyX7QMU2enbQ/Gt0bo6krSeEri+c=
 go.bug.st/serial v1.6.0 h1:mAbRGN4cKE2J5gMwsMHC2KQisdLRQssO9WSM+rbZJ8A=
 go.bug.st/serial v1.6.0/go.mod h1:UABfsluHAiaNI+La2iESysd9Vetq7VRdpxvjx7CmmOE=
-golang.org/x/mod v0.18.0 h1:5+9lSbEzPSdWkH32vYPBwEpX8KwDbM52Ud9xBUvNlb0=
-golang.org/x/net v0.26.0 h1:soB7SVo0PWrY4vPW/+ay0jKDNScG2X9wFeYlXIvJsOQ=
-golang.org/x/net v0.26.0/go.mod h1:5YKkiSynbBIh3p6iOc/vibscux0x38BZDkn8sCUPxHE=
-golang.org/x/sync v0.7.0 h1:YsImfSBoP9QPYL0xyKJPq0gcaJdG3rInoqxTWbfQu9M=
+golang.org/x/mod v0.14.0 h1:dGoOF9QVLYng8IHTm7BAyWqCqSheQ5pYWGhzW00YJr0=
+golang.org/x/net v0.20.0 h1:aCL9BSgETF1k+blQaYUBx9hJ9LOGP3gAVemcZlf1Kpo=
+golang.org/x/net v0.20.0/go.mod h1:z8BVo6PvndSri0LbOE3hAn0apkU+1YvI6E70E9jsnvY=
 golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20191008105621-543471e840be/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191120155948-bd437916bb0e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -95,10 +93,14 @@ golang.org/x/sys v0.0.0-20201207223542-d4d67f95c62d/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20211124211545-fe61309f8881/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.21.0 h1:rF+pYz3DAGSQAxAu1CbC7catZg4ebC4UIeIhKxBZvws=
-golang.org/x/sys v0.21.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
-golang.org/x/text v0.16.0 h1:a94ExnEXNtEwYLGJSIUxnWoxoRz/ZcCsV63ROupILh4=
-golang.org/x/text v0.16.0/go.mod h1:GhwF1Be+LQoKShO3cGOHzqOgRrGaYc9AvblQOmPVHnI=
+golang.org/x/sys v0.16.0 h1:xWw16ngr6ZMtmxDyKyIgsE93KNKz5HKmMa3b8ALHidU=
+golang.org/x/sys v0.16.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ=
+golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
+golang.org/x/tools v0.14.1-0.20231101221057-75ff53bc6b14 h1:fA5UFab6DHvlP8kqChpKvHh9zS8dLvTV2x23xJ4lH/c=
+golang.org/x/tools v0.14.1-0.20231101221057-75ff53bc6b14/go.mod h1:uYBEerGOWcJyEORxN+Ek8+TT266gXkNlHdJBwexUsBg=
+golang.org/x/tools v0.17.0 h1:FvmRgNOcs3kOa+T20R1uhfP9F6HgG2mfxDv1vrx1Htc=
+golang.org/x/tools v0.17.0/go.mod h1:xsh6VxdV005rRVaS6SSAf9oiAqljS7UZUacMZ8Bnsps=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=

goenv/version.go

@@ -9,7 +9,7 @@ import (
 
 // Version of TinyGo.
 // Update this value before release of new version of software.
-const version = "0.32.0"
+const version = "0.32.0-dev"
 
 var (
 	// This variable is set at build time using -ldflags parameters.

src/examples/machinetest/machinetest.go

@@ -1,17 +0,0 @@
-package main
-
-// This is the same as examples/serial, but it also imports the machine package.
-// It is used as a smoke test for the machine package (for boards that don't
-// have an on-board LED and therefore can't use examples/blinky1).
-
-import (
-	_ "machine" // smoke test for the machine package
-	"time"
-)
-
-func main() {
-	for {
-		println("hello world!")
-		time.Sleep(time.Second)
-	}
-}

src/os/exec.go

@@ -58,13 +58,10 @@ type Process struct {
 }
 
 func StartProcess(name string, argv []string, attr *ProcAttr) (*Process, error) {
-	return nil, &PathError{Op: "fork/exec", Path: name, Err: ErrNotImplemented}
+	return nil, &PathError{"fork/exec", name, ErrNotImplemented}
 }
 
 func (p *Process) Wait() (*ProcessState, error) {
-	if p.Pid == -1 {
-		return nil, syscall.EINVAL
-	}
 	return nil, ErrNotImplemented
 }
 
@@ -80,15 +77,3 @@ func Ignore(sig ...Signal) {
 	// leave all the signals unaltered
 	return
 }
-
-// Release releases any resources associated with the Process p,
-// rendering it unusable in the future.
-// Release only needs to be called if Wait is not.
-func (p *Process) Release() error {
-	return p.release()
-}
-
-// Keep compatibility with golang and always succeed and return new proc with pid on Linux.
-func FindProcess(pid int) (*Process, error) {
-	return findProcess(pid)
-}

src/os/exec_posix.go

@@ -7,7 +7,6 @@
 package os
 
 import (
-	"runtime"
 	"syscall"
 )
 
@@ -20,16 +19,3 @@ var (
 	Interrupt Signal = syscall.SIGINT
 	Kill      Signal = syscall.SIGKILL
 )
-
-// Keep compatible with golang and always succeed and return new proc with pid on Linux.
-func findProcess(pid int) (*Process, error) {
-	return &Process{Pid: pid}, nil
-}
-
-func (p *Process) release() error {
-	// NOOP for unix.
-	p.Pid = -1
-	// no need for a finalizer anymore
-	runtime.SetFinalizer(p, nil)
-	return nil
-}

src/os/exec_test.go

@@ -1,28 +0,0 @@
-// Copyright 2024 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-package os_test
-
-import (
-	. "os"
-	"testing"
-)
-
-func TestFindProcess(t *testing.T) {
-	// NOTE: For now, we only test the Linux case since only exec_posix.go is currently the only implementation.
-	// Linux guarantees that there is pid 0
-	proc, err := FindProcess(0)
-	if err != nil {
-		t.Error("FindProcess(0): wanted err == nil, got %v:", err)
-	}
-
-	if proc.Pid != 0 {
-		t.Error("Expected pid 0, got: ", proc.Pid)
-	}
-
-	pid0 := Process{Pid: 0}
-	if *proc != pid0 {
-		t.Error("Expected &Process{Pid: 0}, got", *proc)
-	}
-}

src/os/file.go

@@ -23,7 +23,6 @@ import (
 	"io/fs"
 	"runtime"
 	"syscall"
-	"time"
 )
 
 // Seek whence values.
@@ -257,12 +256,6 @@ func (f *File) SyscallConn() (conn syscall.RawConn, err error) {
 	return
 }
 
-// SetReadDeadline sets the deadline for future Read calls and any
-// currently-blocked Read call.
-func (f *File) SetReadDeadline(t time.Time) error {
-	return f.setReadDeadline(t)
-}
-
 // fd is an internal interface that is used to try a type assertion in order to
 // call the Fd() method of the underlying file handle if it is implemented.
 type fd interface {

src/os/file_posix.go

@@ -8,8 +8,3 @@ import (
 func Chtimes(name string, atime time.Time, mtime time.Time) error {
 	return ErrNotImplemented
 }
-
-// setReadDeadline sets the read deadline, not yet implemented
-func (f *File) setReadDeadline(_ time.Time) error {
-	return ErrNotImplemented
-}

targets/badger2040-w.json

@@ -3,7 +3,7 @@
         "rp2040"
     ],
     "serial-port": ["2e8a:0003"],
-    "build-tags": ["badger2040_w", "cyw43439"],
+    "build-tags": ["badger2040_w"],
     "ldflags": [
         "--defsym=__flash_size=1020K"
     ],

targets/pico-w.json

@@ -1,4 +0,0 @@
-{
-    "inherits": ["pico"],
-    "build-tags": ["pico-w", "cyw43439"]
-}

transform/rtcalls.go

@@ -34,7 +34,7 @@ func OptimizeStringToBytes(mod llvm.Module) {
 			if use.IsAExtractValueInst().IsNil() {
 				// Expected an extractvalue, but this is something else.
 				canConvertPointer = false
-				break
+				continue
 			}
 			switch use.Type().TypeKind() {
 			case llvm.IntegerTypeKind:
@@ -49,7 +49,7 @@ func OptimizeStringToBytes(mod llvm.Module) {
 					// There is a store to the byte slice. This means that none
 					// of the pointer uses can't be propagated.
 					canConvertPointer = false
-					break
+					continue
 				}
 				// It may be that the pointer value can be propagated, if all of
 				// the pointer uses are readonly.