From: Alessandro Arzilli <alessandro.arzilli@gmail.com>
Date: Sun, 13 May 2018 13:17:40 +0000 (+0200)
Subject: cmd/link: writelines should keep is_stmt in sync with what it's writing
X-Git-Tag: go1.11beta1~434
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=3636d53c6119fd1b8a5f9e309fdf65c79952d398;p=gostls13.git

cmd/link: writelines should keep is_stmt in sync with what it's writing

For all functions but the last one if the function ends on a
non-statement instruction the statement flag in debug_line is changed
but is_stmt is not updated to match.

Change-Id: I03c275c5e261ea672ce4da7baca2458810708326
Reviewed-on: https://go-review.googlesource.com/112979
Reviewed-by: David Chase <drchase@google.com>
---

diff --git a/src/cmd/link/internal/ld/dwarf.go b/src/cmd/link/internal/ld/dwarf.go
index 6232ab6e2f..9a75ad96f1 100644
--- a/src/cmd/link/internal/ld/dwarf.go
+++ b/src/cmd/link/internal/ld/dwarf.go
@@ -1302,6 +1302,7 @@ func writelines(ctxt *Link, lib *sym.Library, textp []*sym.Symbol, ls *sym.Symbo
 		}
 		if is_stmt == 0 && i < len(textp)-1 {
 			// If there is more than one function, ensure default value is established.
+			is_stmt = 1
 			ls.AddUint8(uint8(dwarf.DW_LNS_negate_stmt))
 		}
 	}