sysinfo: check if cpu has split lock detection flag

cmd/vinegar/vinegar.go

@@ -150,10 +150,11 @@ func Sysinfo(pfx *wine.Prefix) {
 * Distro: %s
 * Processor: %s
   * Supports AVX: %t
+  * Supports split lock detection: %t
 * Kernel: %s
 * Wine: %s`
 
-	fmt.Printf(info, Version, revision, sysinfo.Distro, sysinfo.CPU, sysinfo.HasAVX, sysinfo.Kernel, ver)
+	fmt.Printf(info, Version, revision, sysinfo.Distro, sysinfo.CPU, sysinfo.HasAVX, sysinfo.HasSplitLockDetect, sysinfo.Kernel, ver)
 	if sysinfo.InFlatpak {
 		fmt.Println("* Flatpak: [x]")
 	}

sysinfo/cpu.go

@@ -6,16 +6,20 @@ import (
 	"bufio"
 	"os"
 	"regexp"
+	"strings"
 )
 
-func cpuModel() string {
+func cpuModel() (string, bool) {
 	column := regexp.MustCompile("\t+: ")
 
 	f, _ := os.Open("/proc/cpuinfo")
 	defer f.Close()
 
 	s := bufio.NewScanner(f)
 
+	n := "unknown cpu"
+	l := false
+
 	for s.Scan() {
 		sl := column.Split(s.Text(), 2)
 		if sl == nil {
@@ -24,9 +28,15 @@ func cpuModel() string {
 
 		// pfft, who needs multiple cpus? just return if we got all we need
 		if sl[0] == "model name" {
-			return sl[1]
+			n = sl[1]
+		}
+
+		if sl[0] == "flags" {
+			l = strings.Contains(sl[1], "split_lock_detect")
+			break
 		}
+
 	}
 
-	return "unknown cpu"
+	return n, l
 }

sysinfo/sysinfo.go

@@ -9,17 +9,18 @@ import (
 )
 
 var (
-	Kernel    string
-	CPU       string
-	Cards     []Card
-	Distro    string
-	HasAVX    = cpu.X86.HasAVX
-	InFlatpak bool
+	Kernel             string
+	CPU                string
+	Cards              []Card
+	Distro             string
+	HasAVX             = cpu.X86.HasAVX
+	HasSplitLockDetect bool
+	InFlatpak          bool
 )
 
 func init() {
 	Kernel = getKernel()
-	CPU = cpuModel()
+	CPU, HasSplitLockDetect = cpuModel()
 	Cards = getCards()
 	Distro = getDistro()