ref: 682ca35d5df44aeb05d8b47e96688c06d9aad154
dir: /src/libcrt/crt-amd64-posix.s/
.bss .globl _environ _environ: .quad 0 .text .global _start _start: movq %rsp,%rbp /* load argc, argv, envp from stack */ movq (%rbp),%rdi /* argc */ leaq 8(%rbp),%rsi /* argv */ leaq 16(%rbp,%rdi,8),%rdx /* envp = argv + 8*argc + 8 */ movq %rdx,_environ call main movl %eax,%edi jmp exit