运行x86可执行文件时出现错误“ 16434非法硬件指令./a.out”

Question

I'm learning the basics of x86 via this free book .

Keep in mind this is specific to macOS x86 compared to Linux x86.

Its made for GNU Linux, so I have to change some of the code which is probably where I went wrong. I took this code snippet:

.section .data
 .section .text
 .globl _start
_start:
movl $1, %eax
movl $0, %ebx
int $0x80

After a bit of googling about x86 on macOS I turned that bit of code into this:

    .data
    .text
    .globl _main
_main:
    movl $1, %eax
    movl $0, %ebx
    int $0x80

I compiled this using gcc test.s which compiles it into a.out . When trying to run it using ./a.out I get the error [1] 17301 illegal hardware instruction ./a.out .

Any help is appreciated, thanks!

Answer 1

@Jester helped me out. You can view the comment on my question, but basically call convention is different for macOS. I found this resource which helped me out.