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