arm匯編學習(五)
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hello.S文件
本文引用地址：http://butianyuan.cn/article/201611/317583.htm.datamsg:.ascii "Hello, ARM!n"len = . - msg.text.globl _start_start:/* syscall write(int fd, const void *buf, size_t count) */mov %r0, $1 /* fd -> stdout */ldr %r1, =msg /* buf -> msg */ldr %r2, =len /* count -> len(msg) */mov %r7, $4 /* write is syscall #4 */swi $0 /* invoke syscall *//* syscall exit(int status) */mov %r0, $0 /* status -> 0 */mov %r7, $1 /* exit is syscall #1 */swi $0 /* invoke syscall */
記得最后加個空格或者回車，不然會報hello.S:21: Warning: partial line at end of file ignored
arm-linux-androideabi-as -o hello.o hello.S
arm-linux-androideabi-ld -s -o hello hello.o
也是個學習ARM匯編的方法
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