Question

我正在尝试运行以下代码，这些代码是我在https://www.tutorialspoint.com/assembly_programming/assembly_macros.htm上用汇编语言编写的宏的示例

; A macro with two parameters
; Implements the write system call
   %macro write_string 2
      mov   eax, 4
      mov   ebx, 1
      mov   ecx, %1
      mov   edx, %2
      int   80h
   %endmacro

section .text
   global _start            ;must be declared for using gcc

_start:                     ;tell linker entry point
   write_string msg1, len1
   write_string msg2, len2
   write_string msg3, len3

   mov eax,1                ;system call number (sys_exit)
   int 0x80                 ;call kernel

section .data
msg1 db 'Hello, programmers!',0xA,0xD
len1 equ $ - msg1

msg2 db 'Welcome to the world of,', 0xA,0xD
len2 equ $- msg2

msg3 db 'Linux assembly programming! '
len3 equ $- msg3

我将此代码另存为example.asm，并尝试按以下方式编译和运行它：

nasm -f elf64 example.asm
ld -s -o example example.o
./example

但是，我遇到了细分错误。可能是什么原因？

更新：在gdb中运行后，我会得到：

Program received signal SIGSEGV, Segmentation fault.
0x00000000004000c4 in ?? ()

当我做回溯时，我得到：

#0  0x00000000004000c4 in ?? ()
#1  0x0000000000000001 in ?? ()
#2  0x00007ffffffee1bf in ?? ()
#3  0x0000000000000000 in ?? ()

使用宏的汇编代码中的分段错误

0 个答案: