updated vendor

vendor/github.com/tetratelabs/wazero/internal/platform/cpuid_arm64.go

@@ -1,28 +1,13 @@
 package platform
 
-import (
-	"runtime"
-
-	"golang.org/x/sys/cpu"
-)
+import "golang.org/x/sys/cpu"
 
 // CpuFeatures exposes the capabilities for this CPU, queried via the Has method.
 var CpuFeatures = loadCpuFeatureFlags()
 
 func loadCpuFeatureFlags() (flags CpuFeatureFlags) {
-	switch runtime.GOOS {
-	case "darwin", "windows":
-		// These OSes do not allow userland to read the instruction set attribute registers,
-		// but basically require atomic instructions:
-		// - "darwin" is the desktop version (mobile version is "ios"),
-		//   and the M1 is a ARMv8.4.
-		// - "windows" requires them from Windows 11, see page 12
-		//   https://download.microsoft.com/download/7/8/8/788bf5ab-0751-4928-a22c-dffdc23c27f2/Minimum%20Hardware%20Requirements%20for%20Windows%2011.pdf
+	if cpu.ARM64.HasATOMICS {
 		flags |= CpuFeatureArm64Atomic
-	default:
-		if cpu.ARM64.HasATOMICS {
-			flags |= CpuFeatureArm64Atomic
-		}
 	}
 	return
 }

vendor/github.com/tetratelabs/wazero/internal/platform/platform.go

@@ -14,6 +14,14 @@ func CompilerSupported() bool {
 }
 
 func CompilerSupports(features api.CoreFeatures) bool {
+	if !compilerPlatformSupports(features) {
+		return false
+	}
+	// Won't panic
+	return executableMmapSupported()
+}
+
+func compilerPlatformSupports(features api.CoreFeatures) bool {
 	switch runtime.GOOS {
 	case "linux", "darwin", "freebsd", "netbsd", "windows":
 		if runtime.GOARCH == "arm64" {
@@ -30,7 +38,7 @@ func CompilerSupports(features api.CoreFeatures) bool {
 	}
 }
 
-// MmapCodeSegment copies the code into the executable region and returns the byte slice of the region.
+// MmapCodeSegment allocates and returns a byte slice to copy executable code into.
 //
 // See https://man7.org/linux/man-pages/man2/mmap.2.html for mmap API and flags.
 func MmapCodeSegment(size int) ([]byte, error) {
@@ -47,3 +55,17 @@ func MunmapCodeSegment(code []byte) error {
 	}
 	return munmapCodeSegment(code)
 }
+
+func executableMmapSupported() bool {
+	seg, err := MmapCodeSegment(1)
+	if err != nil {
+		return false
+	}
+	defer func() {
+		_ = MunmapCodeSegment(seg)
+	}()
+	if err := MprotectCodeSegment(seg); err != nil {
+		return false
+	}
+	return true
+}