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