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- /* Copyright 2011-2012 Nicholas J. Kain, licensed under standard MIT license */
- .global __setjmp
- .global _setjmp
- .global setjmp
- .type __setjmp,@function
- .type _setjmp,@function
- .type setjmp,@function
- __setjmp:
- _setjmp:
- setjmp:
- mov %rbx,(%rdi) /* rdi is jmp_buf, move registers onto it */
- mov %rbp,8(%rdi)
- mov %r12,16(%rdi)
- mov %r13,24(%rdi)
- mov %r14,32(%rdi)
- mov %r15,40(%rdi)
- lea 8(%rsp),%rdx /* this is our rsp WITHOUT current ret addr */
- mov %rdx,48(%rdi)
- mov (%rsp),%rdx /* save return addr ptr for new rip */
- mov %rdx,56(%rdi)
- xor %rax,%rax /* always return 0 */
- ret
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