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@ -7,18 +7,18 @@ _longjmp: |
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longjmp: |
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mov %rsi,%rax /* val will be longjmp return */ |
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test %rax,%rax |
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jnz .L0 |
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jnz 1f |
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inc %rax /* if val==0, val=1 per longjmp semantics */ |
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.L0: |
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movq (%rdi),%rbx /* rdi is the jmp_buf, restore regs from it */ |
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movq 8(%rdi),%rbp |
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movq 16(%rdi),%r12 |
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movq 24(%rdi),%r13 |
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movq 32(%rdi),%r14 |
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movq 40(%rdi),%r15 |
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movq 48(%rdi),%rdx /* this ends up being the stack pointer */ |
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1: |
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mov (%rdi),%rbx /* rdi is the jmp_buf, restore regs from it */ |
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mov 8(%rdi),%rbp |
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mov 16(%rdi),%r12 |
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mov 24(%rdi),%r13 |
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mov 32(%rdi),%r14 |
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mov 40(%rdi),%r15 |
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mov 48(%rdi),%rdx /* this ends up being the stack pointer */ |
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mov %rdx,%rsp |
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movq 56(%rdi),%rdx /* this is the instruction pointer */ |
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mov 56(%rdi),%rdx /* this is the instruction pointer */ |
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jmp *%rdx /* goto saved address without altering rsp */ |
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.size _longjmp,.-_longjmp |
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.size longjmp,.-longjmp |
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