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- /* Written 2011 Nicholas J. Kain, released as Public Domain */
- .text
- .global _start
- _start:
- xor %rbp,%rbp /* rbp:undefined -> mark as zero 0 (ABI) */
- mov %rdx,%r9 /* 6th arg: ptr to register with atexit() */
- pop %rsi /* 2nd arg: argc */
- mov %rsp,%rdx /* 3rd arg: argv */
- andq $-16,%rsp /* align stack pointer */
- push %rax /* 8th arg: glibc ABI compatible */
- push %rsp /* 7th arg: glibc ABI compatible */
- xor %r8,%r8 /* 5th arg: always 0 */
- xor %rcx,%rcx /* 4th arg: always 0 */
- mov $main,%rdi /* 1st arg: application entry ip */
- call __libc_start_main /* musl init will run the program */
- .L0: jmp .L0
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