sys/targets: add OS/Arch name consts

We use strings to identify OS/Arch.
These strings are duplicated throughout the code base massively.
golangci-lint points to possiblity of typos and duplication.
We already had to define these names in pkg/csource
and disable checking for prog package. A future change triggers
such warnings in another package.

Add OS/Arch name consts to sys/targets so that they can be used
to refer to OS/Arch. Use the consts everywhere.

4 files changed, 18 insertions, 15 deletions

diff --git a/pkg/report/fuzz.go b/pkg/report/fuzz.go
index 0db602491..f812f78eb 100644
--- a/pkg/report/fuzz.go
+++ b/pkg/report/fuzz.go
@@ -7,6 +7,7 @@ import (
 	"fmt"
 
 	"github.com/google/syzkaller/pkg/mgrconfig"
+	"github.com/google/syzkaller/sys/targets"
 )
 
 func Fuzz(data []byte) int {
@@ -32,7 +33,7 @@ func Fuzz(data []byte) int {
 		if len(rep.Output) == 0 {
 			panic(fmt.Sprintf("%v: len(Output) == 0", typ))
 		}
-		if os == "fuchsia" {
+		if os == targets.Fuchsia {
 			// Fuchsia has Start/End/SkipPos set incorrectly because it symbolizes before parsing.
 			continue
 		}
@@ -66,12 +67,12 @@ func Fuzz(data []byte) int {
 var fuzzReporters = func() map[string]Reporter {
 	reporters := make(map[string]Reporter)
 	for os := range ctors {
-		if os == "windows" {
+		if os == targets.Windows {
 			continue
 		}
 		cfg := &mgrconfig.Config{
 			TargetOS:   os,
-			TargetArch: "amd64",
+			TargetArch: targets.AMD64,
 		}
 		reporter, err := NewReporter(cfg)
 		if err != nil {
diff --git a/pkg/report/linux_test.go b/pkg/report/linux_test.go
index 2e31ee755..d1b343efe 100644
--- a/pkg/report/linux_test.go
+++ b/pkg/report/linux_test.go
@@ -9,12 +9,13 @@ import (
 
 	"github.com/google/syzkaller/pkg/mgrconfig"
 	"github.com/google/syzkaller/pkg/symbolizer"
+	"github.com/google/syzkaller/sys/targets"
 )
 
 func TestLinuxIgnores(t *testing.T) {
 	cfg := &mgrconfig.Config{
-		TargetOS:   "linux",
-		TargetArch: "amd64",
+		TargetOS:   targets.Linux,
+		TargetArch: targets.AMD64,
 	}
 	reporter, err := NewReporter(cfg)
 	if err != nil {
diff --git a/pkg/report/report.go b/pkg/report/report.go
index ae618d6e6..13f76e67d 100644
--- a/pkg/report/report.go
+++ b/pkg/report/report.go
@@ -132,14 +132,14 @@ const (
 )
 
 var ctors = map[string]fn{
-	"akaros":  ctorAkaros,
-	"linux":   ctorLinux,
-	"gvisor":  ctorGvisor,
-	"freebsd": ctorFreebsd,
-	"netbsd":  ctorNetbsd,
-	"openbsd": ctorOpenbsd,
-	"fuchsia": ctorFuchsia,
-	"windows": ctorStub,
+	targets.Akaros:  ctorAkaros,
+	targets.Linux:   ctorLinux,
+	"gvisor":        ctorGvisor,
+	targets.FreeBSD: ctorFreebsd,
+	targets.NetBSD:  ctorNetbsd,
+	targets.OpenBSD: ctorOpenbsd,
+	targets.Fuchsia: ctorFuchsia,
+	targets.Windows: ctorStub,
 }
 
 type config struct {
diff --git a/pkg/report/report_test.go b/pkg/report/report_test.go
index 1545a44e9..eebbb4c22 100644
--- a/pkg/report/report_test.go
+++ b/pkg/report/report_test.go
@@ -16,6 +16,7 @@ import (
 
 	"github.com/google/syzkaller/pkg/mgrconfig"
 	"github.com/google/syzkaller/pkg/osutil"
+	"github.com/google/syzkaller/sys/targets"
 )
 
 var flagUpdate = flag.Bool("update", false, "update test files accordingly to current results")
@@ -303,12 +304,12 @@ func testGuiltyFile(t *testing.T, reporter Reporter, fn string) {
 
 func forEachFile(t *testing.T, dir string, fn func(t *testing.T, reporter Reporter, fn string)) {
 	for os := range ctors {
-		if os == "windows" {
+		if os == targets.Windows {
 			continue // not implemented
 		}
 		cfg := &mgrconfig.Config{
 			TargetOS:   os,
-			TargetArch: "amd64",
+			TargetArch: targets.AMD64,
 		}
 		reporter, err := NewReporter(cfg)
 		if err != nil {