acpi: implement AML parser for all AML opcodes in the ACPI 6.2 spec

src/gopheros/device/acpi/aml/parser_test.go

@@ -0,0 +1,69 @@
+package aml
+
+import (
+	"gopheros/device/acpi/table"
+	"io/ioutil"
+	"path/filepath"
+	"runtime"
+	"strings"
+	"testing"
+	"unsafe"
+)
+
+func TestParser(t *testing.T) {
+	specs := [][]string{
+		[]string{"DSDT.aml", "SSDT.aml"},
+		[]string{"parser-testsuite-DSDT.aml"},
+	}
+
+	for specIndex, spec := range specs {
+		var resolver = mockResolver{
+			tableFiles: spec,
+		}
+
+		// Create default scopes
+		rootNS := &scopeEntity{op: opScope, name: `\`}
+		rootNS.Append(&scopeEntity{op: opScope, name: `_GPE`}) // General events in GPE register block
+		rootNS.Append(&scopeEntity{op: opScope, name: `_PR_`}) // ACPI 1.0 processor namespace
+		rootNS.Append(&scopeEntity{op: opScope, name: `_SB_`}) // System bus with all device objects
+		rootNS.Append(&scopeEntity{op: opScope, name: `_SI_`}) // System indicators
+		rootNS.Append(&scopeEntity{op: opScope, name: `_TZ_`}) // ACPI 1.0 thermal zone namespace
+
+		p := NewParser(ioutil.Discard, rootNS)
+
+		for _, tableName := range spec {
+			tableName := strings.Replace(tableName, ".aml", "", -1)
+			if err := p.ParseAML(tableName, resolver.LookupTable(tableName)); err != nil {
+				t.Errorf("[spec %d] [%s]: %v", specIndex, tableName, err)
+				break
+			}
+		}
+	}
+}
+
+func pkgDir() string {
+	_, f, _, _ := runtime.Caller(1)
+	return filepath.Dir(f)
+}
+
+type mockResolver struct {
+	tableFiles []string
+}
+
+func (m mockResolver) LookupTable(name string) *table.SDTHeader {
+	pathToDumps := pkgDir() + "/../table/tabletest/"
+	for _, f := range m.tableFiles {
+		if !strings.Contains(f, name) {
+			continue
+		}
+
+		data, err := ioutil.ReadFile(pathToDumps + f)
+		if err != nil {
+			panic(err)
+		}
+
+		return (*table.SDTHeader)(unsafe.Pointer(&data[0]))
+	}
+
+	return nil
+}