mirror of
https://github.com/LadybirdBrowser/ladybird
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58 lines
1.9 KiB
ArmAsm
58 lines
1.9 KiB
ArmAsm
/*
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* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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.global setjmp
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setjmp:
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mov %rbx, (%rdi)
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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), %rcx
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mov %rcx, 48(%rdi)
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mov (%rsp), %rcx
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mov %rcx, 56(%rdi)
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xor %eax, %eax
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ret
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.global longjmp
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longjmp:
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mov (%rdi), %rbx
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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), %rsp
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test %rsi, %rsi
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jnz .nonzero
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mov 1, %rax
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.nonzero:
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jmp *56(%rdi)
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