2011-10-14 23:38:50 +02:00
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
|
;; ;;
|
|
|
|
|
;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;;
|
|
|
|
|
;; Distributed under terms of the GNU General Public License ;;
|
|
|
|
|
;; ;;
|
|
|
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
|
|
|
|
|
|
$Revision$
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
; diamond, 2006
|
|
|
|
|
sys_debug_services:
|
|
|
|
|
cmp ebx, 9
|
|
|
|
|
ja @f
|
|
|
|
|
jmp dword [sys_debug_services_table+ebx*4]
|
|
|
|
|
@@:
|
|
|
|
|
ret
|
|
|
|
|
iglobal
|
|
|
|
|
align 4
|
|
|
|
|
sys_debug_services_table:
|
|
|
|
|
dd debug_set_event_data
|
|
|
|
|
dd debug_getcontext
|
|
|
|
|
dd debug_setcontext
|
|
|
|
|
dd debug_detach
|
|
|
|
|
dd debug_suspend
|
|
|
|
|
dd debug_resume
|
|
|
|
|
dd debug_read_process_memory
|
|
|
|
|
dd debug_write_process_memory
|
|
|
|
|
dd debug_terminate
|
|
|
|
|
dd debug_set_drx
|
|
|
|
|
endg
|
|
|
|
|
debug_set_event_data:
|
|
|
|
|
; in: ecx = pointer
|
|
|
|
|
; destroys eax
|
|
|
|
|
mov eax, [current_slot]
|
|
|
|
|
mov [eax+APPDATA.dbg_event_mem], ecx
|
|
|
|
|
ret
|
|
|
|
|
|
|
|
|
|
get_debuggee_slot:
|
|
|
|
|
; in: ecx=PID
|
|
|
|
|
; out: CF=1 if error
|
|
|
|
|
; CF=0 and eax=slot*0x20 if ok
|
|
|
|
|
; out: interrupts disabled
|
|
|
|
|
cli
|
|
|
|
|
mov eax, ecx
|
|
|
|
|
call pid_to_slot
|
|
|
|
|
test eax, eax
|
|
|
|
|
jz .ret_bad
|
|
|
|
|
shl eax, 5
|
|
|
|
|
push ebx
|
|
|
|
|
mov ebx, [CURRENT_TASK]
|
|
|
|
|
cmp [SLOT_BASE+eax*8+APPDATA.debugger_slot], ebx
|
|
|
|
|
pop ebx
|
|
|
|
|
jnz .ret_bad
|
|
|
|
|
; clc ; automatically
|
|
|
|
|
ret
|
|
|
|
|
.ret_bad:
|
|
|
|
|
stc
|
|
|
|
|
ret
|
|
|
|
|
|
|
|
|
|
debug_detach:
|
|
|
|
|
; in: ecx=pid
|
|
|
|
|
; destroys eax,ebx
|
|
|
|
|
call get_debuggee_slot
|
|
|
|
|
jc .ret
|
|
|
|
|
and dword [eax*8+SLOT_BASE+APPDATA.debugger_slot], 0
|
|
|
|
|
call do_resume
|
|
|
|
|
.ret:
|
|
|
|
|
sti
|
|
|
|
|
ret
|
|
|
|
|
|
|
|
|
|
debug_terminate:
|
|
|
|
|
; in: ecx=pid
|
|
|
|
|
call get_debuggee_slot
|
|
|
|
|
jc debug_detach.ret
|
|
|
|
|
mov ecx, eax
|
|
|
|
|
shr ecx, 5
|
|
|
|
|
; push 2
|
|
|
|
|
; pop ebx
|
|
|
|
|
mov edx, esi
|
|
|
|
|
jmp sysfn_terminate
|
|
|
|
|
|
|
|
|
|
debug_suspend:
|
|
|
|
|
; in: ecx=pid
|
|
|
|
|
; destroys eax,ecx
|
|
|
|
|
cli
|
|
|
|
|
mov eax, ecx
|
|
|
|
|
call pid_to_slot
|
|
|
|
|
shl eax, 5
|
|
|
|
|
jz .ret
|
|
|
|
|
mov cl, [CURRENT_TASK+eax+TASKDATA.state] ; process state
|
|
|
|
|
test cl, cl
|
|
|
|
|
jz .1
|
|
|
|
|
cmp cl, 5
|
|
|
|
|
jnz .ret
|
|
|
|
|
mov cl, 2
|
|
|
|
|
.2:
|
|
|
|
|
mov [CURRENT_TASK+eax+TASKDATA.state], cl
|
|
|
|
|
.ret:
|
|
|
|
|
sti
|
|
|
|
|
ret
|
|
|
|
|
.1:
|
|
|
|
|
inc ecx
|
|
|
|
|
jmp .2
|
|
|
|
|
|
|
|
|
|
do_resume:
|
|
|
|
|
mov cl, [CURRENT_TASK+eax+TASKDATA.state]
|
|
|
|
|
cmp cl, 1
|
|
|
|
|
jz .1
|
|
|
|
|
cmp cl, 2
|
|
|
|
|
jnz .ret
|
|
|
|
|
mov cl, 5
|
|
|
|
|
.2:
|
|
|
|
|
mov [CURRENT_TASK+eax+TASKDATA.state], cl
|
|
|
|
|
.ret:
|
|
|
|
|
ret
|
|
|
|
|
.1:
|
|
|
|
|
dec ecx
|
|
|
|
|
jmp .2
|
|
|
|
|
|
|
|
|
|
debug_resume:
|
|
|
|
|
; in: ecx=pid
|
|
|
|
|
; destroys eax,ebx
|
|
|
|
|
cli
|
|
|
|
|
mov eax, ecx
|
|
|
|
|
call pid_to_slot
|
|
|
|
|
shl eax, 5
|
|
|
|
|
jz .ret
|
|
|
|
|
call do_resume
|
|
|
|
|
.ret:
|
|
|
|
|
sti
|
|
|
|
|
ret
|
|
|
|
|
|
|
|
|
|
debug_getcontext:
|
|
|
|
|
; in:
|
|
|
|
|
; ecx=pid
|
|
|
|
|
; edx=sizeof(CONTEXT)
|
|
|
|
|
; esi->CONTEXT
|
|
|
|
|
; destroys eax,ecx,edx,esi,edi
|
|
|
|
|
cmp edx, 28h
|
|
|
|
|
jnz .ret
|
|
|
|
|
; push ecx
|
|
|
|
|
; mov ecx, esi
|
|
|
|
|
call check_region
|
|
|
|
|
; pop ecx
|
|
|
|
|
dec eax
|
|
|
|
|
jnz .ret
|
|
|
|
|
call get_debuggee_slot
|
|
|
|
|
jc .ret
|
|
|
|
|
mov edi, esi
|
|
|
|
|
mov eax, [eax*8+SLOT_BASE+APPDATA.pl0_stack]
|
|
|
|
|
lea esi, [eax+RING0_STACK_SIZE]
|
|
|
|
|
|
|
|
|
|
.ring0:
|
|
|
|
|
; note that following code assumes that all interrupt/exception handlers
|
|
|
|
|
; saves ring-3 context by pushad in this order
|
|
|
|
|
; top of ring0 stack: ring3 stack ptr (ss+esp), iret data (cs+eip+eflags), pushad
|
|
|
|
|
sub esi, 8+12+20h
|
|
|
|
|
lodsd ;edi
|
|
|
|
|
mov [edi+24h], eax
|
|
|
|
|
lodsd ;esi
|
|
|
|
|
mov [edi+20h], eax
|
|
|
|
|
lodsd ; ebp
|
|
|
|
|
mov [edi+1Ch], eax
|
|
|
|
|
lodsd ;esp
|
|
|
|
|
lodsd ;ebx
|
|
|
|
|
mov [edi+14h], eax
|
|
|
|
|
lodsd ;edx
|
|
|
|
|
mov [edi+10h], eax
|
|
|
|
|
lodsd ;ecx
|
|
|
|
|
mov [edi+0Ch], eax
|
|
|
|
|
lodsd ;eax
|
|
|
|
|
mov [edi+8], eax
|
|
|
|
|
lodsd ;eip
|
|
|
|
|
mov [edi], eax
|
|
|
|
|
lodsd ;cs
|
|
|
|
|
lodsd ;eflags
|
|
|
|
|
mov [edi+4], eax
|
|
|
|
|
lodsd ;esp
|
|
|
|
|
mov [edi+18h], eax
|
|
|
|
|
.ret:
|
|
|
|
|
sti
|
|
|
|
|
ret
|
|
|
|
|
|
|
|
|
|
debug_setcontext:
|
|
|
|
|
; in:
|
|
|
|
|
; ecx=pid
|
|
|
|
|
; edx=sizeof(CONTEXT)
|
|
|
|
|
; esi->CONTEXT
|
|
|
|
|
; destroys eax,ecx,edx,esi,edi
|
|
|
|
|
cmp edx, 28h
|
|
|
|
|
jnz .ret
|
|
|
|
|
; push ebx
|
|
|
|
|
; mov ebx, edx
|
|
|
|
|
call check_region
|
|
|
|
|
; pop ebx
|
|
|
|
|
dec eax
|
|
|
|
|
jnz .ret
|
|
|
|
|
call get_debuggee_slot
|
|
|
|
|
jc .stiret
|
|
|
|
|
; mov esi, edx
|
|
|
|
|
mov eax, [eax*8+SLOT_BASE+APPDATA.pl0_stack]
|
|
|
|
|
lea edi, [eax+RING0_STACK_SIZE]
|
|
|
|
|
|
|
|
|
|
.ring0:
|
|
|
|
|
sub edi, 8+12+20h
|
|
|
|
|
mov eax, [esi+24h] ;edi
|
|
|
|
|
stosd
|
|
|
|
|
mov eax, [esi+20h] ;esi
|
|
|
|
|
stosd
|
|
|
|
|
mov eax, [esi+1Ch] ;ebp
|
|
|
|
|
stosd
|
|
|
|
|
scasd
|
|
|
|
|
mov eax, [esi+14h] ;ebx
|
|
|
|
|
stosd
|
|
|
|
|
mov eax, [esi+10h] ;edx
|
|
|
|
|
stosd
|
|
|
|
|
mov eax, [esi+0Ch] ;ecx
|
|
|
|
|
stosd
|
|
|
|
|
mov eax, [esi+8] ;eax
|
|
|
|
|
stosd
|
|
|
|
|
mov eax, [esi] ;eip
|
|
|
|
|
stosd
|
|
|
|
|
scasd
|
|
|
|
|
mov eax, [esi+4] ;eflags
|
|
|
|
|
stosd
|
|
|
|
|
mov eax, [esi+18h] ;esp
|
|
|
|
|
stosd
|
|
|
|
|
.stiret:
|
|
|
|
|
sti
|
|
|
|
|
.ret:
|
|
|
|
|
ret
|
|
|
|
|
|
|
|
|
|
debug_set_drx:
|
|
|
|
|
call get_debuggee_slot
|
|
|
|
|
jc .errret
|
|
|
|
|
mov ebp, eax
|
|
|
|
|
lea eax, [eax*8+SLOT_BASE+APPDATA.dbg_regs]
|
|
|
|
|
; [eax]=dr0, [eax+4]=dr1, [eax+8]=dr2, [eax+C]=dr3
|
|
|
|
|
; [eax+10]=dr7
|
|
|
|
|
cmp esi, OS_BASE
|
|
|
|
|
jae .errret
|
|
|
|
|
cmp dl, 3
|
|
|
|
|
ja .errret
|
|
|
|
|
mov ecx, dr7
|
|
|
|
|
;fix me
|
|
|
|
|
xchg ecx, edx
|
|
|
|
|
shr edx, cl
|
|
|
|
|
shr edx, cl
|
|
|
|
|
xchg ecx, edx
|
|
|
|
|
|
|
|
|
|
test ecx, 2 ; bit 1+2*index = G0..G3, global break enable
|
|
|
|
|
jnz .errret2
|
|
|
|
|
test dh, dh
|
|
|
|
|
jns .new
|
|
|
|
|
; clear breakpoint
|
|
|
|
|
movzx edx, dl
|
|
|
|
|
add edx, edx
|
|
|
|
|
and dword [eax+edx*2], 0 ; clear DR<i>
|
|
|
|
|
btr dword [eax+10h], edx ; clear L<i> bit
|
|
|
|
|
test byte [eax+10h], 55h
|
|
|
|
|
jnz .okret
|
|
|
|
|
; imul eax, ebp, tss_step/32
|
|
|
|
|
; and byte [eax + tss_data + TSS._trap], not 1
|
|
|
|
|
and [ebp*8 + SLOT_BASE+APPDATA.dbg_state], not 1
|
|
|
|
|
.okret:
|
|
|
|
|
and dword [esp+32], 0
|
|
|
|
|
sti
|
|
|
|
|
ret
|
|
|
|
|
.errret:
|
|
|
|
|
sti
|
|
|
|
|
mov dword [esp+32], 1
|
|
|
|
|
ret
|
|
|
|
|
.errret2:
|
|
|
|
|
sti
|
|
|
|
|
mov dword [esp+32], 2
|
|
|
|
|
ret
|
|
|
|
|
.new:
|
|
|
|
|
; add new breakpoint
|
|
|
|
|
; dl=index; dh=flags; esi=address
|
|
|
|
|
test dh, 0xF0
|
|
|
|
|
jnz .errret
|
|
|
|
|
mov cl, dh
|
|
|
|
|
and cl, 3
|
|
|
|
|
cmp cl, 2
|
|
|
|
|
jz .errret
|
|
|
|
|
mov cl, dh
|
|
|
|
|
shr cl, 2
|
|
|
|
|
cmp cl, 2
|
|
|
|
|
jz .errret
|
|
|
|
|
|
|
|
|
|
mov ebx, esi
|
|
|
|
|
test bl, dl
|
|
|
|
|
|
|
|
|
|
jnz .errret
|
|
|
|
|
or byte [eax+10h+1], 3 ; set GE and LE flags
|
|
|
|
|
|
|
|
|
|
movzx edx, dh
|
|
|
|
|
movzx ecx, dl
|
|
|
|
|
add ecx, ecx
|
|
|
|
|
bts dword [eax+10h], ecx ; set L<i> flag
|
|
|
|
|
add ecx, ecx
|
|
|
|
|
mov [eax+ecx], ebx;esi ; set DR<i>
|
|
|
|
|
shl edx, cl
|
|
|
|
|
mov ebx, 0xF
|
|
|
|
|
shl ebx, cl
|
|
|
|
|
not ebx
|
|
|
|
|
and [eax+10h+2], bx
|
|
|
|
|
or [eax+10h+2], dx ; set R/W and LEN fields
|
|
|
|
|
; imul eax, ebp, tss_step/32
|
|
|
|
|
; or byte [eax + tss_data + TSS._trap], 1
|
|
|
|
|
or [ebp*8 + SLOT_BASE+APPDATA.dbg_state], 1
|
|
|
|
|
jmp .okret
|
|
|
|
|
|
|
|
|
|
debug_read_process_memory:
|
|
|
|
|
; in:
|
|
|
|
|
; ecx=pid
|
|
|
|
|
; edx=length
|
|
|
|
|
; edi->buffer in debugger
|
|
|
|
|
; esi=address in debuggee
|
|
|
|
|
; out: [esp+36]=sizeof(read)
|
|
|
|
|
; destroys all
|
|
|
|
|
; push ebx
|
|
|
|
|
; mov ebx, esi
|
|
|
|
|
call check_region
|
|
|
|
|
; pop ebx
|
|
|
|
|
dec eax
|
|
|
|
|
jnz .err
|
|
|
|
|
call get_debuggee_slot
|
|
|
|
|
jc .err
|
|
|
|
|
shr eax, 5
|
|
|
|
|
mov ecx, edi
|
|
|
|
|
call read_process_memory
|
|
|
|
|
sti
|
|
|
|
|
mov dword [esp+32], eax
|
|
|
|
|
ret
|
|
|
|
|
.err:
|
|
|
|
|
or dword [esp+32], -1
|
|
|
|
|
ret
|
|
|
|
|
|
|
|
|
|
debug_write_process_memory:
|
|
|
|
|
; in:
|
|
|
|
|
; ecx=pid
|
|
|
|
|
; edx=length
|
|
|
|
|
; edi->buffer in debugger
|
|
|
|
|
; esi=address in debuggee
|
|
|
|
|
; out: [esp+36]=sizeof(write)
|
|
|
|
|
; destroys all
|
|
|
|
|
; push ebx
|
|
|
|
|
; mov ebx, esi
|
|
|
|
|
call check_region
|
|
|
|
|
; pop ebx
|
|
|
|
|
dec eax
|
|
|
|
|
jnz debug_read_process_memory.err
|
|
|
|
|
call get_debuggee_slot
|
|
|
|
|
jc debug_read_process_memory.err
|
|
|
|
|
shr eax, 5
|
|
|
|
|
mov ecx, edi
|
|
|
|
|
call write_process_memory
|
|
|
|
|
sti
|
|
|
|
|
mov [esp+32], eax
|
|
|
|
|
ret
|
|
|
|
|
|
|
|
|
|
debugger_notify:
|
|
|
|
|
; in: eax=debugger slot
|
|
|
|
|
; ecx=size of debug message
|
|
|
|
|
; [esp+4]..[esp+4+ecx]=message
|
|
|
|
|
; interrupts must be disabled!
|
|
|
|
|
; destroys all general registers
|
|
|
|
|
; interrupts remain disabled
|
|
|
|
|
xchg ebp, eax
|
|
|
|
|
mov edi, [timer_ticks]
|
|
|
|
|
add edi, 500 ; 5 sec timeout
|
|
|
|
|
.1:
|
|
|
|
|
mov eax, ebp
|
|
|
|
|
shl eax, 8
|
|
|
|
|
mov esi, [SLOT_BASE+eax+APPDATA.dbg_event_mem]
|
|
|
|
|
test esi, esi
|
|
|
|
|
jz .ret
|
|
|
|
|
; read buffer header
|
|
|
|
|
push ecx
|
|
|
|
|
push eax
|
|
|
|
|
push eax
|
|
|
|
|
mov eax, ebp
|
|
|
|
|
mov ecx, esp
|
|
|
|
|
mov edx, 8
|
|
|
|
|
call read_process_memory
|
|
|
|
|
cmp eax, edx
|
|
|
|
|
jz @f
|
|
|
|
|
add esp, 12
|
|
|
|
|
jmp .ret
|
|
|
|
|
@@:
|
|
|
|
|
cmp dword [ecx], 0
|
|
|
|
|
jg @f
|
|
|
|
|
.2:
|
|
|
|
|
pop ecx
|
|
|
|
|
pop ecx
|
|
|
|
|
pop ecx
|
|
|
|
|
cmp dword [CURRENT_TASK], 1
|
|
|
|
|
jnz .notos
|
|
|
|
|
cmp [timer_ticks], edi
|
|
|
|
|
jae .ret
|
|
|
|
|
.notos:
|
|
|
|
|
sti
|
|
|
|
|
call change_task
|
|
|
|
|
cli
|
|
|
|
|
jmp .1
|
|
|
|
|
@@:
|
|
|
|
|
mov edx, [ecx+8]
|
|
|
|
|
add edx, [ecx+4]
|
|
|
|
|
cmp edx, [ecx]
|
|
|
|
|
ja .2
|
|
|
|
|
; advance buffer position
|
|
|
|
|
push edx
|
|
|
|
|
mov edx, 4
|
|
|
|
|
sub ecx, edx
|
|
|
|
|
mov eax, ebp
|
|
|
|
|
add esi, edx
|
|
|
|
|
call write_process_memory
|
|
|
|
|
pop eax
|
|
|
|
|
; write message
|
|
|
|
|
mov eax, ebp
|
|
|
|
|
add esi, edx
|
|
|
|
|
add esi, [ecx+8]
|
|
|
|
|
add ecx, 20
|
|
|
|
|
pop edx
|
|
|
|
|
pop edx
|
|
|
|
|
pop edx
|
|
|
|
|
call write_process_memory
|
|
|
|
|
; new debug event
|
|
|
|
|
mov eax, ebp
|
|
|
|
|
shl eax, 8
|
|
|
|
|
or byte [SLOT_BASE+eax+APPDATA.event_mask+1], 1 ; set flag 100h
|
|
|
|
|
.ret:
|
|
|
|
|
ret
|
