ref: a80c579064560b4bcf8ed28ed857b6265dc5fd37
dir: /src/libc/arch/amd64/darwin/crt.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(%rip) call _main movl %eax,%edi jmp _exit