From: Yury Smolsky <yury@smolsky.by>
Date: Thu, 26 Jul 2018 09:46:50 +0000 (+0300)
Subject: cmd/compile: export the Func.Endlineno field
X-Git-Tag: go1.12beta1~1302
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=c374984e99888bb2e2dd6c331a1328275debe19d;p=gostls13.git

cmd/compile: export the Func.Endlineno field

This CL exports the Func.Endlineno value for inlineable functions.
It is needed to grab the source code of an imported function
inlined into the function specified in $GOSSAFUNC.

See CL 126606 for details.

Updates #25904

Change-Id: I1e259e20445e4109b4621a95abb5bde1be457af1
Reviewed-on: https://go-review.googlesource.com/126605
Run-TryBot: Yury Smolsky <yury@smolsky.by>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
---

diff --git a/src/cmd/compile/internal/gc/iexport.go b/src/cmd/compile/internal/gc/iexport.go
index 5ce284dc73..3007c9cabf 100644
--- a/src/cmd/compile/internal/gc/iexport.go
+++ b/src/cmd/compile/internal/gc/iexport.go
@@ -952,6 +952,16 @@ func (w *exportWriter) funcExt(n *Node) {
 		if n.Func.ExportInline() {
 			w.p.doInline(n)
 		}
+
+		// Endlineno for inlined function.
+		if n.Name.Defn != nil {
+			w.pos(n.Name.Defn.Func.Endlineno)
+		} else {
+			// When the exported node was defined externally,
+			// e.g. io exports atomic.(*Value).Load or bytes exports errors.New.
+			// Keep it as we don't distinguish this case in iimport.go.
+			w.pos(n.Func.Endlineno)
+		}
 	} else {
 		w.uint64(0)
 	}
diff --git a/src/cmd/compile/internal/gc/iimport.go b/src/cmd/compile/internal/gc/iimport.go
index 21151b5215..6f0fd6b6d2 100644
--- a/src/cmd/compile/internal/gc/iimport.go
+++ b/src/cmd/compile/internal/gc/iimport.go
@@ -679,6 +679,7 @@ func (r *importReader) funcExt(n *Node) {
 		n.Func.Inl = &Inline{
 			Cost: int32(u - 1),
 		}
+		n.Func.Endlineno = r.pos()
 	}
 }