From 3ba4bcf48870e5239d7444478b4931b125023cf6 Mon Sep 17 00:00:00 2001
From: Alessandro Arzilli <alessandro.arzilli@gmail.com>
Date: Tue, 26 Feb 2019 18:17:05 +0100
Subject: [PATCH] proc: do not crash if executable doesn't have a PT_TLS
 section (#1483)

Fixes #1481
---
 pkg/proc/bininfo.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkg/proc/bininfo.go b/pkg/proc/bininfo.go
index e27f7d03..3750c6ba 100644
--- a/pkg/proc/bininfo.go
+++ b/pkg/proc/bininfo.go
@@ -754,6 +754,10 @@ func (bi *BinaryInfo) setGStructOffsetElf(exe *elf.File, wg *sync.WaitGroup) {
 			break
 		}
 	}
+	if tls == nil {
+		bi.gStructOffset = ^uint64(8) + 1 // -8
+		return
+	}
 	memsz := tls.Memsz
 
 	memsz = (memsz + uint64(bi.Arch.PtrSize()) - 1) & ^uint64(bi.Arch.PtrSize()-1) // align to pointer-sized-boundary