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497b987043
This is so that the source file gets distributed and _ucontext_i.h is generated properly on the target machine. Signed-off-by: Arun Sharma <arun.sharma@google.com>
60 lines
2 KiB
ArmAsm
60 lines
2 KiB
ArmAsm
/* libunwind - a platform-independent unwind library
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Copyright (C) 2007 Google, Inc
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Contributed by Arun Sharma <arun.sharma@google.com>
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This file is part of libunwind.
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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#include "_ucontext_i.h"
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.global _x86_64_setcontext
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_x86_64_setcontext:
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/* restore fp state */
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mov REG_OFFSET_FPREGS_PTR(%rdi),%r8
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fldenv (%r8)
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ldmxcsr FPREG_OFFSET_MXCR(%r8)
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/* restore the rest of the state */
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mov REG_OFFSET_R8(%rdi),%r8
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mov REG_OFFSET_R9(%rdi),%r9
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mov REG_OFFSET_RBX(%rdi),%rbx
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mov REG_OFFSET_RBP(%rdi),%rbp
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mov REG_OFFSET_R12(%rdi),%r12
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mov REG_OFFSET_R13(%rdi),%r13
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mov REG_OFFSET_R14(%rdi),%r14
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mov REG_OFFSET_R15(%rdi),%r15
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mov REG_OFFSET_RSI(%rdi),%rsi
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mov REG_OFFSET_RDX(%rdi),%rdx
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mov REG_OFFSET_RAX(%rdi),%rax
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mov REG_OFFSET_RCX(%rdi),%rcx
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mov REG_OFFSET_RSP(%rdi),%rsp
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/* push the return address on the stack */
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mov REG_OFFSET_RIP(%rdi),%rcx
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push %rcx
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mov REG_OFFSET_RCX(%rdi),%rcx
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mov REG_OFFSET_RDI(%rdi),%rdi
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retq
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