From 6c7bef551b32c2f7f2371b21cc8d51d807737ef3 Mon Sep 17 00:00:00 2001
From: Alex Brainman <alex.brainman@gmail.com>
Date: Thu, 15 May 2014 12:44:29 +1000
Subject: [PATCH] cmd/addr2line, cmd/objdump: fix pe text section starting
 address

fixes windows build

LGTM=bradfitz
R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/97500043
---
 src/cmd/addr2line/main.go | 11 ++++++++++-
 src/cmd/objdump/main.go   | 11 ++++++++++-
 2 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/src/cmd/addr2line/main.go b/src/cmd/addr2line/main.go
index d6d14a7330..f4a7789f9b 100644
--- a/src/cmd/addr2line/main.go
+++ b/src/cmd/addr2line/main.go
@@ -138,8 +138,17 @@ func loadTables(f *os.File) (textStart uint64, symtab, pclntab []byte, err error
 	}
 
 	if obj, err := pe.NewFile(f); err == nil {
+		var imageBase uint64
+		switch oh := obj.OptionalHeader.(type) {
+		case *pe.OptionalHeader32:
+			imageBase = uint64(oh.ImageBase)
+		case *pe.OptionalHeader64:
+			imageBase = oh.ImageBase
+		default:
+			return 0, nil, nil, fmt.Errorf("pe file format not recognized")
+		}
 		if sect := obj.Section(".text"); sect != nil {
-			textStart = uint64(sect.VirtualAddress)
+			textStart = imageBase + uint64(sect.VirtualAddress)
 		}
 		if pclntab, err = loadPETable(obj, "pclntab", "epclntab"); err != nil {
 			return 0, nil, nil, err
diff --git a/src/cmd/objdump/main.go b/src/cmd/objdump/main.go
index 1b6b3d0fc4..fb79ba3a2a 100644
--- a/src/cmd/objdump/main.go
+++ b/src/cmd/objdump/main.go
@@ -318,8 +318,17 @@ func loadTables(f *os.File) (textStart uint64, textData, symtab, pclntab []byte,
 	}
 
 	if obj, err := pe.NewFile(f); err == nil {
+		var imageBase uint64
+		switch oh := obj.OptionalHeader.(type) {
+		case *pe.OptionalHeader32:
+			imageBase = uint64(oh.ImageBase)
+		case *pe.OptionalHeader64:
+			imageBase = oh.ImageBase
+		default:
+			return 0, nil, nil, nil, fmt.Errorf("pe file format not recognized")
+		}
 		if sect := obj.Section(".text"); sect != nil {
-			textStart = uint64(sect.VirtualAddress)
+			textStart = imageBase + uint64(sect.VirtualAddress)
 			textData, _ = sect.Data()
 		}
 		if pclntab, err = loadPETable(obj, "pclntab", "epclntab"); err != nil {