錯誤：ARM 的行尾出現垃圾 -as 和 -o 錯誤 (Error: Junk at end of line -as and -o error with ARM)

問題描述

錯誤：ARM 的行尾出現垃圾 ‑as 和 ‑o 錯誤 (Error: Junk at end of line ‑as and ‑o error with ARM)

我正在嘗試編寫我的第一個 ARM 程序，當我嘗試運行“as ‑o labl1.o lab1.s”時出現此錯誤

lab1.s:3: Error: junk at end of line, first unrecognized character is `s'

我非常不確定自己做錯了什麼在這裡，因為我唯一使用 s 的時間是在我的 2 個字符串中，並且對我出錯的代碼位置感到非常困惑。

@Data
.data
string1: .asciz
string2: .asciz

@Code
.text
.global main
.extern printf

main:

push {ip, lr}

push {r0, r1, r2}
ldr r0, =string1
mov r1, #34
mov r2, #56
bl printf
pop {r0,r1,r2}

push {r0}
ldr r0, =string2
bl printf
pop {r0}

pop {ip, pc}

非常感謝鏈接到有用的文檔或幫助調試，謝謝！

參考解法

方法 1:

You may be confusing the address of your strings and the values you want to assign them: As specified in GNU as documentation, the .asciz directive does require a string argument ‑ a slightly modified version of your code does assemble correctly:

.data
string1: .asciz "string1"
string2: .asciz "string2"

string1 is now the label for the address where bytes "string1\x00" are located, and string2 is the label for the address where bytes "string2\x00" are.

(by Nard、Frant)

參考文件

1. Error: Junk at end of line ‑as and ‑o error with ARM (CC BY‑SA 2.5/3.0/4.0)