reactos/lib/rtl/amd64/stubs.c

   1 /*
   2  * COPYRIGHT:         See COPYING in the top level directory
   3  * PROJECT:           ReactOS Run-Time Library
   4  * PURPOSE:           AMD64 stubs
   5  * FILE:              lib/rtl/amd64/stubs.c
   6  * PROGRAMMERS:        Stefan Ginsberg (stefan.ginsberg@reactos.org)
   7  */
   8
   9 /* INCLUDES *****************************************************************/
  10
  11 #include <rtl.h>
  12 #define NDEBUG
  13 #include <debug.h>
  14 #include "amd64/ketypes.h"
  15
  16 /* PUBLIC FUNCTIONS **********************************************************/
  17
  18 /*
  19  * @unimplemented
  20  */
  21 VOID
  22 NTAPI
  23 RtlInitializeContext(IN HANDLE ProcessHandle,
  24                      OUT PCONTEXT ThreadContext,
  25                      IN PVOID ThreadStartParam  OPTIONAL,
  26                      IN PTHREAD_START_ROUTINE ThreadStartAddress,
  27                      IN PINITIAL_TEB StackBase)
  28 {
  29
  30     ThreadContext->Rax = 0;
  31     ThreadContext->Rbx = 0;
  32     ThreadContext->Rcx = (ULONG64)ThreadStartParam;
  33     ThreadContext->Rdx = 0;
  34     ThreadContext->Rsi = 0;
  35     ThreadContext->Rdi = 0;
  36     ThreadContext->Rbp = 0;
  37     ThreadContext->R8 = 0;
  38     ThreadContext->R9 = 0;
  39     ThreadContext->R10 = 0;
  40     ThreadContext->R11 = 0;
  41     ThreadContext->R12 = 0;
  42
  43     /* Set the Selectors */
  44     if ((LONG64)ThreadStartAddress < 0)
  45     {
  46         /* Initialize kernel mode segments */
  47         ThreadContext->SegCs = KGDT64_R0_CODE;
  48         ThreadContext->SegDs = KGDT64_R3_DATA;
  49         ThreadContext->SegEs = KGDT64_R3_DATA;
  50         ThreadContext->SegFs = KGDT64_R3_CMTEB;
  51         ThreadContext->SegGs = KGDT64_R3_DATA;
  52         ThreadContext->SegSs = KGDT64_R0_DATA;
  53     }
  54     else
  55     {
  56         /* Initialize user mode segments */
  57         ThreadContext->SegCs = KGDT64_R3_CODE |  RPL_MASK;
  58         ThreadContext->SegDs = KGDT64_R3_DATA |  RPL_MASK;
  59         ThreadContext->SegEs = KGDT64_R3_DATA |  RPL_MASK;
  60         ThreadContext->SegFs = KGDT64_R3_CMTEB |  RPL_MASK;
  61         ThreadContext->SegGs = KGDT64_R3_DATA |  RPL_MASK;
  62         ThreadContext->SegSs = KGDT64_R3_DATA |  RPL_MASK;
  63     }
  64
  65     /* Enable Interrupts */
  66     ThreadContext->EFlags = EFLAGS_INTERRUPT_MASK;
  67
  68     /* Settings passed */
  69     ThreadContext->Rip = (ULONG64)ThreadStartAddress;
  70     ThreadContext->Rsp = (ULONG64)StackBase - 6 * sizeof(PVOID);
  71
  72     /* Align stack by 16 and substract 8 (unaligned on function entry) */
  73     ThreadContext->Rsp &= ~15;
  74     ThreadContext->Rsp -= 8;
  75
  76     /* Only the basic Context is initialized */
  77     ThreadContext->ContextFlags = CONTEXT_CONTROL |
  78                                   CONTEXT_INTEGER |
  79                                   CONTEXT_SEGMENTS;
  80
  81     return;
  82 }
  83
  84 /*
  85  * @unimplemented
  86  */
  87 PVOID
  88 NTAPI
  89 RtlpGetExceptionAddress(VOID)
  90 {
  91     UNIMPLEMENTED;
  92     return NULL;
  93 }
  94
  95 /*
  96  * @unimplemented
  97  */
  98 BOOLEAN
  99 NTAPI
 100 RtlDispatchException(IN PEXCEPTION_RECORD ExceptionRecord,
 101                      IN PCONTEXT Context)
 102 {
 103     UNIMPLEMENTED;
 104     return FALSE;
 105 }
 106
 107 NTSYSAPI
 108 VOID
 109 RtlRestoreContext(
 110     PCONTEXT ContextRecord,
 111     PEXCEPTION_RECORD ExceptionRecord)
 112 {
 113     UNIMPLEMENTED;
 114 }
 115
 116