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- Implement restoring DRx registers if the thread is being debugged.

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svn path=/trunk/; revision=33597
This commit is contained in:
Aleksey Bragin 2008-05-19 10:04:21 +00:00
parent 8ee5bedcd5
commit 9cc4675c59
1 changed files with 20 additions and 3 deletions
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23
reactos/ntoskrnl/ke/i386/usercall_asm.S
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@ -318,6 +318,8 @@ CheckDebug:
test byte ptr [eax+KTHREAD_DEBUG_ACTIVE], 0xFF
jnz RestoreDebug
RestoreStack:
/* Get TSS */
mov edx, fs:[KPCR_TSS]
@ -379,10 +381,25 @@ NotV86:
jmp CheckDebug
RestoreDebug:
/* Get a pointer to thread's trap frame */
mov esi, [eax+KTHREAD_TRAP_FRAME]
/* Not yet supported */
int 3
jmp $
/* Copy debug registers data from it */
mov edx, [esi+KTRAP_FRAME_DR0]
mov [edi+KTRAP_FRAME_DR0], edx
mov edx, [esi+KTRAP_FRAME_DR1]
mov [edi+KTRAP_FRAME_DR1], edx
mov edx, [esi+KTRAP_FRAME_DR2]
mov [edi+KTRAP_FRAME_DR2], edx
mov edx, [esi+KTRAP_FRAME_DR3]
mov [edi+KTRAP_FRAME_DR3], edx
mov edx, [esi+KTRAP_FRAME_DR6]
mov [edi+KTRAP_FRAME_DR6], edx
mov edx, [esi+KTRAP_FRAME_DR7]
mov [edi+KTRAP_FRAME_DR7], edx
/* Jump back */
jmp RestoreStack
NoStack: