crt.s - scc - simple c99 compiler
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crt.s (341B)
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1 .bss
2 .globl __environ
3 __environ:
4 .quad 0
5
6 .text
7 .global start
8 start:
9 movq %rsp,%rbp
10
11 /* load argc, argv, envp from stack */
12 movq (%rbp),%rdi /* argc */
13 leaq 8(%rbp),%rsi /* argv */
14 leaq 16(%rbp,%rdi,8),%rdx /* envp = argv + 8*argc + 8 */
15 movq %rdx,__environ(%rip)
16
17 call _main
18 movl %eax,%edi
19 jmp _exit