something went wrong with Listing 16-2. stack_unwind.asm

[kneoyskw]

I built an executable file with the following Makefile in listings/chap16/stack_unwind. When executed, the program printed 14 lines (not 10) and caused Segmentation fault. I think something is wrong with the loop termination logic in stack_unwind.asm. I don't know how rbx register value become zero. Any suggestion?

all: main

main: stack_unwind.o main.o 
	gcc -o main main.o stack_unwind.o

stack_unwind.o: stack_unwind.asm
	nasm -felf64 stack_unwind.asm -o stack_unwind.o

main.o: stack_unwind.c
	gcc -c -O0 stack_unwind.c -o main.o

[kneoyskw]

I figured out another way to stop looping and made a pull request #45 of my solution. I believe that a better solution could be found but I just wanted to show what is the problem.

[sayon]

Fixed in #45. Thank you again!