From: Joel Sing <joel@sing.id.au>
Date: Thu, 23 Jul 2020 17:38:38 +0000 (+1000)
Subject: cmd/link: make it easier to debug an elfrelocsect size mismatch
X-Git-Tag: go1.16beta1~1038
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=37aa65357007411d121fbdbaa5a340aba21ab40a;p=gostls13.git

cmd/link: make it easier to debug an elfrelocsect size mismatch

Change-Id: I54976b004b4db006509f5e0781b1c2e46cfa09ab
Reviewed-on: https://go-review.googlesource.com/c/go/+/244577
Run-TryBot: Than McIntosh <thanm@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Trust: Joel Sing <joel@sing.id.au>
---

diff --git a/src/cmd/link/internal/ld/elf.go b/src/cmd/link/internal/ld/elf.go
index 2862f65f9f..f5a2f899fc 100644
--- a/src/cmd/link/internal/ld/elf.go
+++ b/src/cmd/link/internal/ld/elf.go
@@ -12,6 +12,7 @@ import (
 	"crypto/sha1"
 	"encoding/binary"
 	"encoding/hex"
+	"fmt"
 	"path/filepath"
 	"sort"
 	"strings"
@@ -1400,7 +1401,7 @@ func elfrelocsect(ctxt *Link, out *OutBuf, sect *sym.Section, syms []loader.Sym)
 
 	// sanity check
 	if uint64(out.Offset()) != sect.Reloff+sect.Rellen {
-		panic("elfrelocsect: size mismatch")
+		panic(fmt.Sprintf("elfrelocsect: size mismatch %d != %d + %d", out.Offset(), sect.Reloff, sect.Rellen))
 	}
 }