reflect.Value: Uint fix

_cmptest/printfdemo/demo.go

@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package main
+
+import (
+	"fmt"
+
+	"github.com/goplus/llgo/xtool/nm"
+)
+
+func main() {
+	sym := nm.Symbol{Name: "abc", Type: nm.Text}
+	fmt.Printf("%016x %c %s\n", sym.Addr, sym.Type, sym.Name)
+}

internal/lib/reflect/value.go

@@ -1579,8 +1579,10 @@ func (v Value) CanUint() bool {
 // Uint returns v's underlying value, as a uint64.
 // It panics if v's Kind is not Uint, Uintptr, Uint8, Uint16, Uint32, or Uint64.
 func (v Value) Uint() uint64 {
+	f := v.flag
 	k := v.kind()
 	p := v.ptr
+	if f&flagAddr != 0 {
 		switch k {
 		case Uint:
 			return uint64(*(*uint)(p))
@@ -1595,10 +1597,21 @@ func (v Value) Uint() uint64 {
 		case Uintptr:
 			return uint64(*(*uintptr)(p))
 		}
+	} else if unsafe.Sizeof(uintptr(0)) == 8 {
+		if k >= Uint && k <= Uintptr {
+			return uint64(uintptr(p))
+		}
+	} else {
+		if k >= Uint && k <= Uint32 {
+			return uint64(uintptr(p))
+		}
+		if k == Uint64 || k == Uintptr {
+			return *(*uint64)(p)
+		}
+	}
 	panic(&ValueError{"reflect.Value.Uint", v.kind()})
 }
 
-//go:nocheckptr
 // This prevents inlining Value.UnsafeAddr when -d=checkptr is enabled,
 // which ensures cmd/compile can recognize unsafe.Pointer(v.UnsafeAddr())
 // and make an exception.