105 lines
2.9 KiB
C
105 lines
2.9 KiB
C
/*
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* x86-64 register context support
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*
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* Copyright (C) 1999, 2005 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "config.h"
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#ifdef __x86_64__
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#include <assert.h>
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#include <errno.h>
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#include <stdarg.h>
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#include <unistd.h>
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#define NONAMELESSUNION
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#include "windef.h"
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#include "winbase.h"
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#include "file.h"
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#include "thread.h"
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#include "request.h"
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/* copy a context structure according to the flags */
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void copy_context( CONTEXT *to, const CONTEXT *from, unsigned int flags )
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{
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flags &= ~CONTEXT_AMD64; /* get rid of CPU id */
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if (flags & CONTEXT_CONTROL)
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{
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to->Rbp = from->Rbp;
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to->Rip = from->Rip;
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to->Rsp = from->Rsp;
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to->SegCs = from->SegCs;
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to->SegSs = from->SegSs;
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to->EFlags = from->EFlags;
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to->MxCsr = from->MxCsr;
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}
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if (flags & CONTEXT_INTEGER)
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{
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to->Rax = from->Rax;
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to->Rcx = from->Rcx;
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to->Rdx = from->Rdx;
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to->Rbx = from->Rbx;
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to->Rsi = from->Rsi;
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to->Rdi = from->Rdi;
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to->R8 = from->R8;
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to->R9 = from->R9;
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to->R10 = from->R10;
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to->R11 = from->R11;
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to->R12 = from->R12;
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to->R13 = from->R13;
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to->R14 = from->R14;
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to->R15 = from->R15;
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}
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if (flags & CONTEXT_SEGMENTS)
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{
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to->SegDs = from->SegDs;
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to->SegEs = from->SegEs;
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to->SegFs = from->SegFs;
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to->SegGs = from->SegGs;
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}
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if (flags & CONTEXT_FLOATING_POINT)
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{
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to->u.FltSave = from->u.FltSave;
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}
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/* we don't bother copying the debug registers, since they */
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/* always need to be accessed by ptrace anyway */
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to->ContextFlags |= flags & ~CONTEXT_DEBUG_REGISTERS;
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}
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/* retrieve the current instruction pointer of a context */
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client_ptr_t get_context_ip( const CONTEXT *context )
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{
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return context->Rip;
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}
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/* return the context flag that contains the CPU id */
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unsigned int get_context_cpu_flag(void)
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{
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return CONTEXT_AMD64;
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}
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/* return only the context flags that correspond to system regs */
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/* (system regs are the ones we can't access on the client side) */
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unsigned int get_context_system_regs( unsigned int flags )
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{
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return flags & (CONTEXT_DEBUG_REGISTERS & ~CONTEXT_AMD64);
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}
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#endif /* __x86_64__ */
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