[DO NOT MERGE] testing Windows CI failures

Author: aykevl

.github/workflows/build-macos.yml

@@ -26,6 +26,8 @@ jobs:
             goarch: arm64
     runs-on: ${{ matrix.os }}
     steps:
+      - name: exit early
+        run: command-does-not-exist
       - name: Install Dependencies
         run: |
           HOMEBREW_NO_AUTO_UPDATE=1 brew install qemu binaryen
@@ -128,6 +130,8 @@ jobs:
       matrix:
         version: [16, 17, 18]
     steps:
+      - name: exit early
+        run: command-does-not-exist
       - name: Set up Homebrew
         uses: Homebrew/actions/setup-homebrew@master
       - name: Fix Python symlinks

.github/workflows/linux.yml

@@ -22,6 +22,8 @@ jobs:
     outputs:
       version: ${{ steps.version.outputs.version }}
     steps:
+      - name: exit early
+        run: command-does-not-exist
       - name: Install apk dependencies
         # tar: needed for actions/cache@v4
         # git+openssh: needed for checkout (I think?)
@@ -171,6 +173,8 @@ jobs:
     # potential bugs.
     runs-on: ubuntu-latest
     steps:
+      - name: exit early
+        run: command-does-not-exist
       - name: Checkout
         uses: actions/checkout@v4
         with:

.github/workflows/nix.yml

@@ -15,6 +15,8 @@ jobs:
   nix-test:
     runs-on: ubuntu-latest
     steps:
+      - name: exit early
+        run: command-does-not-exist
       - name: Uninstall system LLVM
         # Hack to work around issue where we still include system headers for
         # some reason.

.github/workflows/sizediff.yml

@@ -15,6 +15,8 @@ jobs:
     permissions:
       pull-requests: write
     steps:
+      - name: exit early
+        run: command-does-not-exist
       # Prepare, install tools
       - name: Add GOBIN to $PATH
         run: |

.github/workflows/windows.yml

@@ -32,8 +32,9 @@ jobs:
           scoop install ninja binaryen
       - name: Checkout
         uses: actions/checkout@v4
-        with:
-          submodules: true
+      - name: submodules
+        shell: bash
+        run: git submodule update --init lib/mingw-w64
       - name: Extract TinyGo version
         id: version
         shell: bash
@@ -91,6 +92,11 @@ jobs:
         with:
           key: ${{ steps.cache-llvm-build.outputs.cache-primary-key }}
           path: llvm-build
+      - name: Test TinyGo
+        shell: bash
+        run: make test GOTESTFLAGS="-short -run=TestBuild -v"
+      - name: exit
+        run: command-does-not-exist
       - name: Cache wasi-libc sysroot
         uses: actions/cache@v4
         id: cache-wasi-libc
@@ -105,9 +111,6 @@ jobs:
           scoop install [email protected]
       - name: make gen-device
         run: make -j3 gen-device
-      - name: Test TinyGo
-        shell: bash
-        run: make test GOTESTFLAGS="-short"
       - name: Build TinyGo release tarball
         shell: bash
         run: make build/release -j4

GNUmakefile

@@ -191,7 +191,7 @@ gen-device: gen-device-stm32
 endif
 
 gen-device-avr:
-	@if [ ! -e lib/avr/README.md ]; then echo "Submodules have not been downloaded. Please download them using:\n  git submodule update --init"; exit 1; fi
+	#@if [ ! -e lib/avr/README.md ]; then echo "Submodules have not been downloaded. Please download them using:\n  git submodule update --init"; exit 1; fi
 	$(GO) build -o ./build/gen-device-avr ./tools/gen-device-avr/
 	./build/gen-device-avr lib/avr/packs/atmega src/device/avr/
 	./build/gen-device-avr lib/avr/packs/tiny src/device/avr/
@@ -263,7 +263,7 @@ endif
 .PHONY: wasi-libc
 wasi-libc: lib/wasi-libc/sysroot/lib/wasm32-wasi/libc.a
 lib/wasi-libc/sysroot/lib/wasm32-wasi/libc.a:
-	@if [ ! -e lib/wasi-libc/Makefile ]; then echo "Submodules have not been downloaded. Please download them using:\n  git submodule update --init"; exit 1; fi
+	#@if [ ! -e lib/wasi-libc/Makefile ]; then echo "Submodules have not been downloaded. Please download them using:\n  git submodule update --init"; exit 1; fi
 	cd lib/wasi-libc && $(MAKE) -j4 EXTRA_CFLAGS="-O2 -g -DNDEBUG -mnontrapping-fptoint -msign-ext" MALLOC_IMPL=none CC="$(CLANG)" AR=$(LLVM_AR) NM=$(LLVM_NM)
 
 # Generate WASI syscall bindings

main_test.go

@@ -7,6 +7,7 @@ import (
 	"bufio"
 	"bytes"
 	"context"
+	"crypto/sha256"
 	"errors"
 	"flag"
 	"io"
@@ -117,8 +118,11 @@ func TestBuild(t *testing.T) {
 
 	t.Run("Host", func(t *testing.T) {
 		t.Parallel()
-		runPlatTests(optionsFromTarget("", sema), tests, t)
+		for i := 0; i < 100; i++ {
+			runPlatTests(optionsFromTarget("", sema), []string{"alias.go"}, t)
+		}
 	})
+	return
 
 	// Test a few build options.
 	t.Run("build-options", func(t *testing.T) {
@@ -422,7 +426,21 @@ func runTestWithConfig(name string, t *testing.T, options compileopts.Options, c
 	// Build the test binary.
 	stdout := &bytes.Buffer{}
 	_, err = buildAndRun(pkgName, config, stdout, cmdArgs, environmentVars, time.Minute, func(cmd *exec.Cmd, result builder.BuildResult) error {
-		return cmd.Run()
+		data, err := os.ReadFile(result.Executable)
+		if err != nil {
+			t.Fatal("failed to read executable:", err)
+		}
+		hash := sha256.Sum256(data)
+		t.Logf("executable hash and size: %d %x", len(data), hash)
+
+		t.Log("command:", cmd)
+		err = cmd.Run()
+		if err == nil {
+			t.Log("  error is nil!")
+		} else {
+			t.Log("  error:", err)
+		}
+		return err
 	})
 	if err != nil {
 		w := &bytes.Buffer{}

src/runtime/runtime_windows.go

@@ -53,7 +53,7 @@ func mainCRTStartup() int {
 	runMain()
 
 	// For libc compatibility.
-	return 0
+	return 33
 }
 
 // Must be a separate function to get the correct stack pointer.
@@ -92,7 +92,9 @@ func os_runtime_args() []string {
 }
 
 func putchar(c byte) {
-	libc_putchar(int(c))
+	if libc_putchar(int(c)) != 0 {
+		libc_exit(42)
+	}
 }
 
 var heapSize uintptr = 128 * 1024 // small amount to start