| 136,9 → 136,18 |
|---|
| ; ecx=pid |
| ; edx=sizeof(CONTEXT) |
| ; esi->CONTEXT |
| ; destroys eax,ecx,edx,esi,edi |
| cmp edx, 28h |
| jnz .ret |
| ; destroys eax,ebx,ecx,edx,esi,edi |
| |
| xor ebx, ebx ; 0 - get only gp regs |
| cmp edx, 40 |
| je .std_ctx |
| |
| cmp edx, 48+288 |
| jne .ret |
| |
| inc ebx ; 1 - get sse context |
| ; TODO legacy 32-bit FPU/MMX context |
| .std_ctx: |
| ; push ecx |
| ; mov ecx, esi |
| call check_region |
| 147,8 → 156,15 |
|---|
| jnz .ret |
| call get_debuggee_slot |
| jc .ret |
| |
| shr eax, 5 |
| cmp eax, [fpu_owner] |
| jne @f |
| inc bh ; set swap context flag |
| @@: |
| shl eax, 8 |
| mov edi, esi |
| mov eax, [eax*8+SLOT_BASE+APPDATA.pl0_stack] |
| mov eax, [eax+SLOT_BASE+APPDATA.pl0_stack] |
| lea esi, [eax+RING0_STACK_SIZE] |
| |
| .ring0: |
| 178,6 → 194,29 |
|---|
| mov [edi+4], eax |
| lodsd ;esp |
| mov [edi+18h], eax |
| |
| dec bl |
| js .ret |
| dec bl |
| jns .ret |
| |
| test bh, bh ; check swap flag |
| jz @F |
| |
| ffree st0 ; swap context |
| @@: |
| |
| add esi, 4 ;top of ring0 stack |
| ;fpu/sse context saved here |
| add edi, 40 |
| mov eax, 1 ;sse context |
| stosd |
| xor eax, eax ;reserved dword |
| stosd |
| |
| mov ecx, 288/4 |
| rep movsd ;copy sse context |
| |
| .ret: |
| sti |
| ret |