From 32209b171d14d67690d1734055dbda069fda34a5 Mon Sep 17 00:00:00 2001
From: Dan Pitic <dpitic@gmail.com>
Date: Tue, 12 Jun 2018 21:44:44 +0800
Subject: [PATCH] Modified Listing 16-2 stack_unwind.asm to fix ld errors when
 linking with gcc. Required adding missing references to GOT and PLT.

---
 listings/chap16/stack_unwind/stack_unwind.asm | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/listings/chap16/stack_unwind/stack_unwind.asm b/listings/chap16/stack_unwind/stack_unwind.asm
index cb895e1..0450fd7 100755
--- a/listings/chap16/stack_unwind/stack_unwind.asm
+++ b/listings/chap16/stack_unwind/stack_unwind.asm
@@ -9,16 +9,16 @@ section .code
 unwind:
     push rbx
 
-; while (rbx > fptr) { 
+    ; while (rbx > fptr) { 
     ;     print rbx; rbx = [rbx];
     ; }
     mov rbx, rbp 
     .loop:
-    cmp rbx,fptr ; check if pointing fptr or lower
+    cmp rbx, [rel fptr wrt ..got] ; check if pointing fptr or lower
     jc .end
     mov rdi, format
     mov rsi, rbx
-    call printf
+    call printf wrt ..plt
     mov rbx, [rbx]
     jmp .loop