1 files changed, 51 insertions, 0 deletions
diff --git a/src/cmd/compile/internal/gc/export.go b/src/cmd/compile/internal/gc/export.go
new file mode 100644
index 0000000..c9acfc1
--- /dev/null
+++ b/src/cmd/compile/internal/gc/export.go
@@ -0,0 +1,51 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package gc
+
+import (
+	"fmt"
+	"go/constant"
+
+	"cmd/compile/internal/base"
+	"cmd/compile/internal/ir"
+	"cmd/compile/internal/typecheck"
+	"cmd/compile/internal/types"
+	"cmd/internal/bio"
+)
+
+func dumpasmhdr() {
+	b, err := bio.Create(base.Flag.AsmHdr)
+	if err != nil {
+		base.Fatalf("%v", err)
+	}
+	fmt.Fprintf(b, "// generated by compile -asmhdr from package %s\n\n", types.LocalPkg.Name)
+	for _, n := range typecheck.Target.Asms {
+		if n.Sym().IsBlank() {
+			continue
+		}
+		switch n.Op() {
+		case ir.OLITERAL:
+			t := n.Val().Kind()
+			if t == constant.Float || t == constant.Complex {
+				break
+			}
+			fmt.Fprintf(b, "#define const_%s %v\n", n.Sym().Name, n.Val().ExactString())
+
+		case ir.OTYPE:
+			t := n.Type()
+			if !t.IsStruct() || t.StructType().Map != nil || t.IsFuncArgStruct() {
+				break
+			}
+			fmt.Fprintf(b, "#define %s__size %d\n", n.Sym().Name, int(t.Size()))
+			for _, f := range t.Fields().Slice() {
+				if !f.Sym.IsBlank() {
+					fmt.Fprintf(b, "#define %s_%s %d\n", n.Sym().Name, f.Sym.Name, int(f.Offset))
+				}
+			}
+		}
+	}
+
+	b.Close()
+}