| # |
| # exit and _exit get included in *every* program, and gcc generates |
| # horrible code for them. Yes, this only saves a few bytes, but |
| # it does it in every program. |
| # |
| |
| #include <asm/unistd.h> |
| |
| .data |
| .align 8 |
| .globl __exit_handler |
| .type __exit_handler,@object |
| __exit_handler: |
| .quad _exit |
| .size __exit_handler,8 |
| |
| .text |
| .align 8 |
| .globl exit |
| .type exit,@function |
| exit: |
| jmp *(__exit_handler) |
| .size exit,.-exit |
| |
| /* No need to save any registers... we're exiting! */ |
| .text |
| .align 4 |
| .globl _exit |
| .type _exit,@function |
| _exit: |
| movl $__NR_exit,%eax |
| /* The argument is already in %rdi */ |
| syscall |
| .size _exit,.-exit |
| |
