From: Paul E. Murphy <murp@ibm.com>
Date: Wed, 10 Mar 2021 20:41:38 +0000 (-0600)
Subject: cmd/link: preserve elf phdr flags when loading external objects
X-Git-Tag: go1.17beta1~1103
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=bd0fc0b9c3;p=gostls13.git

cmd/link: preserve elf phdr flags when loading external objects

Preserve program header flags when passing them through loadelf.Load.
They shouldn't be coerced to 0 on non-ARM platforms which set them
such as ppc64le.

Change-Id: I022613356f910d812de2fc22eac949960eeb53b3
Reviewed-on: https://go-review.googlesource.com/c/go/+/300950
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Emmanuel Odeke <emmanuel@orijtech.com>
---

diff --git a/src/cmd/link/internal/loadelf/ldelf.go b/src/cmd/link/internal/loadelf/ldelf.go
index 6e3b2c077d..e373a6e0b4 100644
--- a/src/cmd/link/internal/loadelf/ldelf.go
+++ b/src/cmd/link/internal/loadelf/ldelf.go
@@ -252,6 +252,8 @@ func Load(l *loader.Loader, arch *sys.Arch, localSymVersion int, f *bio.Reader,
 		return nil, 0, fmt.Errorf("loadelf: %s: %v", pn, fmt.Sprintf(str, args...))
 	}
 
+	ehdrFlags = initEhdrFlags
+
 	base := f.Offset()
 
 	var hdrbuf [64]byte