forked from KolibriOS/kolibrios
sys32 - concentration all (except #NM) exception handlers in ecx_c for optimization purpose
debug - moved handler to sys32::exc_c fpu - moved except_16/19 to sys32::exc_c memory - changing interface for page_fault_handler v86 - changing interface for handler v86_exc_c kernel - small optimization git-svn-id: svn://kolibrios.org@1056 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Galkov
parent
3be0aa5c21
commit
82da211b9b
@ -415,59 +415,28 @@ debugger_notify:
|
|||||||
.ret:
|
.ret:
|
||||||
ret
|
ret
|
||||||
|
|
||||||
debug_exc:
|
debug_ex:
|
||||||
test byte [esp+8+2], 2
|
|
||||||
jnz v86_debug_exc
|
|
||||||
; int 1 = #DB
|
|
||||||
save_ring3_context
|
|
||||||
cld
|
|
||||||
mov ax, app_data ;os_data
|
|
||||||
mov ds, ax
|
|
||||||
mov es, ax
|
|
||||||
mov eax, dr6
|
|
||||||
push eax
|
|
||||||
xor eax, eax
|
|
||||||
mov dr6, eax
|
|
||||||
; test if debugging
|
|
||||||
cli
|
|
||||||
mov eax, [current_slot]
|
|
||||||
mov eax, [eax+APPDATA.debugger_slot]
|
|
||||||
test eax, eax
|
|
||||||
jnz .debug
|
|
||||||
sti
|
|
||||||
; not debuggee => say error and terminate
|
|
||||||
add esp, 0x20+4
|
|
||||||
mov [error_interrupt], 1
|
|
||||||
call show_error_parameters
|
|
||||||
mov edx, [TASK_BASE]
|
|
||||||
mov byte [edx+TASKDATA.state], 4
|
|
||||||
jmp change_task
|
|
||||||
.debug:
|
|
||||||
; we are debugged process, notify debugger and suspend ourself
|
; we are debugged process, notify debugger and suspend ourself
|
||||||
; eax=debugger PID
|
; eax=debugger PID
|
||||||
pop edx
|
mov edx, dr6 ; debug_message data=DR6_image
|
||||||
|
xor ebx, ebx
|
||||||
|
mov dr6, ebx
|
||||||
mov ebx, dr7
|
mov ebx, dr7
|
||||||
mov cl, not 1
|
mov cl, not 8
|
||||||
.l1:
|
.l1: shl bl,2
|
||||||
test bl, 1
|
jc @f
|
||||||
jnz @f
|
|
||||||
and dl, cl
|
and dl, cl
|
||||||
@@:
|
@@: sar cl,1
|
||||||
shr ebx, 2
|
jc .l1
|
||||||
add cl, cl
|
mov ecx,3 ; debug_message code=debug_exception
|
||||||
inc ecx
|
.notify:
|
||||||
cmp cl, not 10h
|
push edx ; debug_message data
|
||||||
jnz .l1
|
mov ebx, [TASK_BASE]
|
||||||
push edx ; DR6 image
|
push [ebx+TASKDATA.pid] ; PID
|
||||||
mov ecx, [TASK_BASE]
|
push ecx ; debug_message code
|
||||||
push dword [ecx+TASKDATA.pid] ; PID
|
mov ecx,12 ; debug_message size
|
||||||
push 12
|
call debugger_notify ;; only ONE using, inline ???
|
||||||
pop ecx
|
add esp,12
|
||||||
push 3 ; 3 = debug exception
|
|
||||||
call debugger_notify
|
|
||||||
pop ecx
|
|
||||||
pop ecx
|
|
||||||
pop ecx
|
|
||||||
mov edx, [TASK_BASE]
|
mov edx, [TASK_BASE]
|
||||||
mov byte [edx+TASKDATA.state], 1 ; suspended
|
mov byte [edx+TASKDATA.state], 1 ; suspended
|
||||||
call change_task
|
call change_task
|
||||||
|
|||||||
@ -142,7 +142,7 @@ fpu_restore:
|
|||||||
ret
|
ret
|
||||||
|
|
||||||
align 4
|
align 4
|
||||||
e7: ;#NM exception handler
|
except_7: ;#NM exception handler
|
||||||
save_ring3_context
|
save_ring3_context
|
||||||
clts
|
clts
|
||||||
mov ax, app_data ;
|
mov ax, app_data ;
|
||||||
@ -188,8 +188,8 @@ reg_eflags equ ebp+12
|
|||||||
reg_esp equ ebp+16
|
reg_esp equ ebp+16
|
||||||
reg_ss equ ebp+20
|
reg_ss equ ebp+20
|
||||||
|
|
||||||
align 4
|
align 4 ;not used now
|
||||||
except_16: ;fpu native exceptions handler
|
proc except_16 ;fpu native exceptions handler
|
||||||
test byte [esp+8+2], 2
|
test byte [esp+8+2], 2
|
||||||
jnz v86_except_16
|
jnz v86_except_16
|
||||||
push ebp
|
push ebp
|
||||||
@ -233,9 +233,10 @@ except_16: ;fpu native exceptions handler
|
|||||||
|
|
||||||
mov bl, 16
|
mov bl, 16
|
||||||
jmp exc_c
|
jmp exc_c
|
||||||
|
endp
|
||||||
|
|
||||||
align 4
|
align 4 ;not used now
|
||||||
except_19: ;sse exceptions handler
|
proc except_19 ;sse exceptions handler
|
||||||
test byte [esp+8+2], 2
|
test byte [esp+8+2], 2
|
||||||
jnz v86_except_19
|
jnz v86_except_19
|
||||||
push ebp
|
push ebp
|
||||||
@ -278,6 +279,7 @@ except_19: ;sse exceptions handler
|
|||||||
|
|
||||||
mov bl, 19
|
mov bl, 19
|
||||||
jmp exc_c
|
jmp exc_c
|
||||||
|
endp
|
||||||
|
|
||||||
restore reg_eip
|
restore reg_eip
|
||||||
restore reg_cs
|
restore reg_cs
|
||||||
|
|||||||
@ -544,23 +544,14 @@ get_pg_addr:
|
|||||||
|
|
||||||
|
|
||||||
align 4
|
align 4
|
||||||
|
; Now it is called from sys32::exc_c (see stack frame there)
|
||||||
proc page_fault_handler
|
proc page_fault_handler
|
||||||
|
|
||||||
test byte [esp+12+2], 2
|
|
||||||
jnz v86_page_fault
|
|
||||||
|
|
||||||
.err_code equ ebp+32
|
|
||||||
.err_addr equ ebp-4
|
.err_addr equ ebp-4
|
||||||
|
|
||||||
pushad
|
|
||||||
mov ebp, esp
|
mov ebp, esp
|
||||||
mov eax, cr2
|
mov ebx, cr2
|
||||||
push eax
|
push ebx ; that is locals: .err_addr = cr2
|
||||||
|
|
||||||
mov ax, app_data
|
|
||||||
mov ds, ax
|
|
||||||
mov es, ax
|
|
||||||
|
|
||||||
inc [pg_data.pages_faults]
|
inc [pg_data.pages_faults]
|
||||||
|
|
||||||
; push eax
|
; push eax
|
||||||
@ -571,10 +562,9 @@ proc page_fault_handler
|
|||||||
; pop edx
|
; pop edx
|
||||||
; pop eax
|
; pop eax
|
||||||
|
|
||||||
mov ebx, [.err_addr]
|
mov eax, [pf_err_code]
|
||||||
mov eax, [.err_code]
|
|
||||||
|
|
||||||
cmp ebx, OS_BASE
|
cmp ebx, OS_BASE ;ebx == .err_addr
|
||||||
jb .user_space ;страница в памяти приложения ;
|
jb .user_space ;страница в памяти приложения ;
|
||||||
|
|
||||||
cmp ebx, page_tabs
|
cmp ebx, page_tabs
|
||||||
@ -583,7 +573,7 @@ proc page_fault_handler
|
|||||||
cmp ebx, kernel_tabs
|
cmp ebx, kernel_tabs
|
||||||
jb .alloc;.app_tabs ;таблицы страниц приложения ;
|
jb .alloc;.app_tabs ;таблицы страниц приложения ;
|
||||||
;просто создадим одну
|
;просто создадим одну
|
||||||
|
if 0 ;ïîêà ýòî ïðîñòî ëèøíåå
|
||||||
cmp ebx, LFB_BASE
|
cmp ebx, LFB_BASE
|
||||||
jb .core_tabs ;таблицы страниц ядра
|
jb .core_tabs ;таблицы страниц ядра
|
||||||
;Ошибка
|
;Ошибка
|
||||||
@ -591,8 +581,13 @@ proc page_fault_handler
|
|||||||
;область LFB
|
;область LFB
|
||||||
;Ошибка
|
;Ошибка
|
||||||
jmp .fail
|
jmp .fail
|
||||||
|
end if
|
||||||
|
.core_tabs:
|
||||||
|
.fail: ;simply return to caller
|
||||||
|
mov esp, ebp
|
||||||
|
mov bl, 14 ;#PF
|
||||||
|
ret
|
||||||
|
|
||||||
align 4
|
|
||||||
.user_space:
|
.user_space:
|
||||||
test eax, PG_MAP
|
test eax, PG_MAP
|
||||||
jnz .err_access ;Страница присутствует
|
jnz .err_access ;Страница присутствует
|
||||||
@ -615,33 +610,32 @@ align 4
|
|||||||
test eax, eax
|
test eax, eax
|
||||||
jz .fail
|
jz .fail
|
||||||
|
|
||||||
stdcall map_page,[ebp-4],eax,dword PG_UW
|
stdcall map_page,[.err_addr],eax,dword PG_UW
|
||||||
|
|
||||||
mov edi, [ebp-4]
|
mov edi, [.err_addr]
|
||||||
and edi, 0xFFFFF000
|
and edi, 0xFFFFF000
|
||||||
mov ecx, 1024
|
mov ecx, 1024
|
||||||
xor eax, eax
|
xor eax, eax
|
||||||
cld
|
;cld ;caller is duty for this
|
||||||
rep stosd
|
rep stosd
|
||||||
.exit:
|
.exit: ;iret with repeat fault instruction
|
||||||
mov esp, ebp
|
add esp,8 ; clear in stack: locals(.err_addr) + ret_to_caller
|
||||||
popad
|
restore_ring3_context
|
||||||
add esp, 4
|
|
||||||
iretd
|
iretd
|
||||||
|
|
||||||
.err_access:
|
.err_access = .fail
|
||||||
;никогда не происходит
|
;никогда не происходит
|
||||||
jmp .fail
|
;jmp .fail
|
||||||
|
|
||||||
.kernel_space:
|
.kernel_space:
|
||||||
test eax, PG_MAP
|
test eax, PG_MAP
|
||||||
jz .fail ;страница не присутствует
|
jz .fail ;страница не присутствует
|
||||||
|
|
||||||
test eax, 4 ;U/S
|
test eax,12 ;U/S (+below)
|
||||||
jnz .fail ;приложение обратилось к памяти
|
jnz .fail ;приложение обратилось к памяти
|
||||||
;ядра
|
;ядра
|
||||||
test eax, 8
|
;test eax, 8
|
||||||
jnz .fail ;óñòàíîâëåí çàðåçåðâèðîâàííûé áèò
|
;jnz .fail ;óñòàíîâëåí çàðåçåðâèðîâàííûé áèò
|
||||||
;в таблицах страниц. добавлено в P4/Xeon
|
;в таблицах страниц. добавлено в P4/Xeon
|
||||||
|
|
||||||
;попытка записи в защищённую страницу ядра
|
;попытка записи в защищённую страницу ядра
|
||||||
@ -660,7 +654,7 @@ align 4
|
|||||||
jz .fail
|
jz .fail
|
||||||
|
|
||||||
push eax
|
push eax
|
||||||
stdcall map_page,[ebp-4],eax,dword PG_SW
|
stdcall map_page,[.err_addr],eax,dword PG_SW
|
||||||
pop eax
|
pop eax
|
||||||
mov edi, [.err_addr]
|
mov edi, [.err_addr]
|
||||||
and edi, -4096
|
and edi, -4096
|
||||||
@ -674,26 +668,9 @@ align 4
|
|||||||
|
|
||||||
add esi, [default_io_map]
|
add esi, [default_io_map]
|
||||||
mov ecx, 4096/4
|
mov ecx, 4096/4
|
||||||
cld
|
;cld ;caller is duty for this
|
||||||
rep movsd
|
rep movsd
|
||||||
jmp .exit
|
jmp .exit
|
||||||
|
|
||||||
|
|
||||||
;íå îáðàáàòûâàåì. Îøèáêà
|
|
||||||
|
|
||||||
.core_tabs:
|
|
||||||
.fail:
|
|
||||||
mov esp, ebp
|
|
||||||
popad
|
|
||||||
add esp, 4
|
|
||||||
|
|
||||||
; iretd
|
|
||||||
|
|
||||||
save_ring3_context ;debugger support
|
|
||||||
|
|
||||||
mov bl, 14
|
|
||||||
jmp exc_c
|
|
||||||
iretd
|
|
||||||
endp
|
endp
|
||||||
|
|
||||||
align 4
|
align 4
|
||||||
@ -1346,6 +1323,3 @@ proc create_ring_buffer stdcall, size:dword, flags:dword
|
|||||||
.fail:
|
.fail:
|
||||||
ret
|
ret
|
||||||
endp
|
endp
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|||||||
@ -14,212 +14,206 @@
|
|||||||
$Revision$
|
$Revision$
|
||||||
|
|
||||||
|
|
||||||
align 4
|
align 4 ;3A08
|
||||||
idtreg:
|
|
||||||
dw 8*0x41-1
|
|
||||||
dd idts+8
|
|
||||||
|
|
||||||
build_interrupt_table:
|
build_interrupt_table:
|
||||||
|
mov edi, idts
|
||||||
mov edi, idts+8
|
|
||||||
mov esi, sys_int
|
mov esi, sys_int
|
||||||
mov ecx, 0x40
|
mov ecx, 0x40
|
||||||
@@:
|
mov eax, (10001110b shl 24) + os_code
|
||||||
lodsd
|
@@: movsw ;low word of code-entry
|
||||||
mov [edi], ax ; lower part of offset
|
stosd ;interrupt gate type : os_code selector
|
||||||
mov [edi+2], word os_code ; segment selector
|
movsw ;high word of code-entry
|
||||||
mov ax, word 10001110b shl 8 ; type: interrupt gate
|
|
||||||
mov [edi+4], eax
|
|
||||||
add edi, 8
|
|
||||||
loop @b
|
loop @b
|
||||||
|
movsd ;copy low dword of trap gate for int 0x40
|
||||||
;mov edi,8*0x40+idts+8
|
movsd ;copy high dword of trap gate for int 0x40
|
||||||
mov dword [edi], (i40 and 0xFFFF) or (os_code shl 16)
|
lidt [esi]
|
||||||
mov dword [edi+4], (11101111b shl 8) or (i40 and 0xFFFF0000)
|
|
||||||
; type: trap gate
|
|
||||||
ret
|
ret
|
||||||
|
|
||||||
iglobal
|
iglobal
|
||||||
|
align 4
|
||||||
msg_sel_ker db "kernel", 0
|
|
||||||
msg_sel_app db "application", 0
|
|
||||||
|
|
||||||
sys_int:
|
sys_int:
|
||||||
dd e0,debug_exc,e2,e3
|
;exception handlers addresses (for interrupt gate construction)
|
||||||
dd e4,e5,e6,e7
|
dd e0,e1,e2,e3,e4,e5,e6,except_7
|
||||||
dd e8,e9,e10,e11
|
dd e8,e9,e10,e11,e12,e13,page_fault_exc,e15
|
||||||
dd e12,e13,page_fault_handler,e15
|
dd e16, e17,e18, e19
|
||||||
|
times 12 dd unknown_interrupt ;int_20..int_31
|
||||||
dd except_16, e17,e18, except_19
|
|
||||||
times 12 dd unknown_interrupt
|
|
||||||
|
|
||||||
|
;interrupt handlers addresses (for interrupt gate construction)
|
||||||
dd irq0, irq_serv.irq_1, irq_serv.irq_2
|
dd irq0, irq_serv.irq_1, irq_serv.irq_2
|
||||||
if USE_COM_IRQ
|
if USE_COM_IRQ
|
||||||
dd irq_serv.irq_3, irq_serv.irq_4
|
dd irq_serv.irq_3, irq_serv.irq_4
|
||||||
else
|
else
|
||||||
dd p_irq3, p_irq4
|
dd p_irq3, p_irq4 ;??? íåñòûêîâêà
|
||||||
end if
|
end if
|
||||||
dd irq_serv.irq_5, p_irq6, irq_serv.irq_7
|
dd irq_serv.irq_5, p_irq6, irq_serv.irq_7
|
||||||
dd irq_serv.irq_8, irq_serv.irq_9, irq_serv.irq_10
|
dd irq_serv.irq_8, irq_serv.irq_9, irq_serv.irq_10
|
||||||
dd irq_serv.irq_11, irq_serv.irq_12, irqD,p_irq14,p_irq15
|
dd irq_serv.irq_11, irq_serv.irq_12, irqD,p_irq14,p_irq15
|
||||||
|
times 16 dd unknown_interrupt ;int_0x30..int_0x3F
|
||||||
|
|
||||||
times 16 dd unknown_interrupt
|
;int_0x40 gate trap (for directly copied)
|
||||||
|
dw i40 and 0xFFFF, os_code, 11101111b shl 8, i40 shr 16
|
||||||
|
|
||||||
|
idtreg: ; data for LIDT instruction (must be immediately below sys_int data)
|
||||||
|
dw 2*($-sys_int-4)-1
|
||||||
|
dd idts ;0x8000B100
|
||||||
|
dw 0 ;ïðîñòî âûðàâíèâàíèå
|
||||||
|
|
||||||
|
msg_fault_sel dd msg_exc_8,msg_exc_u,msg_exc_a,msg_exc_b
|
||||||
|
dd msg_exc_c,msg_exc_d,msg_exc_e
|
||||||
|
|
||||||
|
msg_exc_8 db "Double fault", 0
|
||||||
|
msg_exc_u db "Undefined Exception", 0
|
||||||
|
msg_exc_a db "Invalid TSS", 0
|
||||||
|
msg_exc_b db "Segment not present", 0
|
||||||
|
msg_exc_c db "Stack fault", 0
|
||||||
|
msg_exc_d db "General protection fault", 0
|
||||||
|
msg_exc_e db "Page fault", 0
|
||||||
|
|
||||||
|
msg_sel_ker db "kernel", 0
|
||||||
|
msg_sel_app db "application", 0
|
||||||
|
|
||||||
dd i40
|
|
||||||
endg
|
endg
|
||||||
|
|
||||||
macro save_ring3_context
|
macro save_ring3_context {
|
||||||
{
|
|
||||||
pushad
|
pushad
|
||||||
}
|
}
|
||||||
macro restore_ring3_context
|
macro restore_ring3_context {
|
||||||
{
|
|
||||||
popad
|
popad
|
||||||
}
|
}
|
||||||
|
macro exc_wo_code [num] {
|
||||||
; simply return control to interrupted process
|
|
||||||
unknown_interrupt:
|
|
||||||
iret
|
|
||||||
|
|
||||||
macro exc_wo_code [num]
|
|
||||||
{
|
|
||||||
forward
|
|
||||||
e#num :
|
e#num :
|
||||||
save_ring3_context
|
save_ring3_context
|
||||||
mov bl, num
|
mov bl, num
|
||||||
jmp exc_c
|
jmp exc_c
|
||||||
}
|
} exc_wo_code 0,1,2,3,4,5,6,15,16,19
|
||||||
|
|
||||||
macro exc_w_code [num]
|
macro exc_w_code [num] {
|
||||||
{
|
|
||||||
forward
|
|
||||||
e#num :
|
e#num :
|
||||||
add esp, 4
|
add esp, 4
|
||||||
save_ring3_context
|
save_ring3_context
|
||||||
mov bl, num
|
mov bl, num
|
||||||
jmp exc_c
|
jmp exc_c
|
||||||
}
|
} exc_w_code 8,9,10,11,12,13,17,18
|
||||||
|
|
||||||
exc_wo_code 0, 2, 3, 4, 5, 6, 9, 15, 18
|
|
||||||
exc_w_code 8, 10, 11, 12, 13, 14, 17
|
|
||||||
|
|
||||||
exc_c:
|
uglobal
|
||||||
mov ax, app_data ;èñêëþ÷åíèå
|
pf_err_code dd ?
|
||||||
mov ds, ax ;çàãðóçèì ïðàâèëüíûå çíà÷åíè
|
endg
|
||||||
mov es, ax ;â ðåãèñòðû
|
|
||||||
|
|
||||||
|
page_fault_exc:
|
||||||
|
pop [pf_err_code] ;äåéñòâèòåëüíî äî ñëåäóþùåãî #PF
|
||||||
|
save_ring3_context
|
||||||
|
mov bl,14
|
||||||
|
exc_c: ;èñêëþ÷åíèå
|
||||||
|
; Ôðýéì ñòåêà ïðè èñêëþ÷åíèè/ïðåðûâàíèè èç 3-ãî êîëüöà + pushad (ò.å., èìåííî çäåñü)
|
||||||
|
reg_ss equ esp+0x30
|
||||||
|
reg_esp3 equ esp+0x2C
|
||||||
|
reg_eflags equ esp+0x28
|
||||||
|
reg_cs3 equ esp+0x24
|
||||||
|
reg_eip equ esp+0x20
|
||||||
|
; ýòî ôðýéì îò pushad
|
||||||
|
reg_eax equ esp+0x1C
|
||||||
|
reg_ecx equ esp+0x18
|
||||||
|
reg_edx equ esp+0x14
|
||||||
|
reg_ebx equ esp+0x10
|
||||||
|
reg_esp0 equ esp+0x0C
|
||||||
|
reg_ebp equ esp+0x08
|
||||||
|
reg_esi equ esp+0x04
|
||||||
|
reg_edi equ esp+0x00
|
||||||
|
|
||||||
|
Mov ds,ax,app_data ; çàãðóçèì ïðàâèëüíûå çíà÷åíèÿ
|
||||||
|
mov es,ax ; â ñåãìåíòíûå ðåãèñòðû
|
||||||
|
cld ; è ïðèâîäèì DF ê ñòàíäàðòó
|
||||||
; redirect to V86 manager? (EFLAGS & 0x20000) != 0?
|
; redirect to V86 manager? (EFLAGS & 0x20000) != 0?
|
||||||
test byte [esp+20h+8+2], 2
|
test byte[reg_eflags+2],2
|
||||||
jnz v86_exc_c
|
jnz v86_exc_c
|
||||||
|
cmp bl,14 ; #PF
|
||||||
; test if debugging
|
jne .l0
|
||||||
cli
|
call page_fault_handler
|
||||||
mov eax, [current_slot]
|
.l0: mov esi, [current_slot]
|
||||||
mov eax, [eax+APPDATA.debugger_slot]
|
mov eax,[esi+APPDATA.fpu_handler]
|
||||||
|
cmp bl,16 ; #MF
|
||||||
|
je .l1
|
||||||
|
cmp bl,19 ; #XF
|
||||||
|
jne .l2
|
||||||
|
mov eax,[esi+APPDATA.sse_handler]
|
||||||
|
.l1: test eax, eax
|
||||||
|
jnz IRetToUserHook
|
||||||
|
.l2: cli
|
||||||
|
mov eax, [esi+APPDATA.debugger_slot]
|
||||||
test eax, eax
|
test eax, eax
|
||||||
jnz .debug
|
jnz .debug
|
||||||
sti
|
sti
|
||||||
; not debuggee => say error and terminate
|
; not debuggee => say error and terminate
|
||||||
movzx eax, bl
|
call show_error_parameters ;; only ONE using, inline ???
|
||||||
mov [error_interrupt], eax
|
;mov edx, [TASK_BASE]
|
||||||
call show_error_parameters
|
mov [edx + TASKDATA.state], byte 4 ; terminate
|
||||||
add esp, 0x20
|
jmp change_task ; stack - here it does not matter at all
|
||||||
mov edx, [TASK_BASE]
|
|
||||||
mov [edx + TASKDATA.state], byte 4
|
|
||||||
|
|
||||||
jmp change_task
|
|
||||||
|
|
||||||
.debug:
|
.debug:
|
||||||
; we are debugged process, notify debugger and suspend ourself
|
; we are debugged process, notify debugger and suspend ourself
|
||||||
; eax=debugger PID
|
; eax=debugger PID
|
||||||
cld
|
cmp bl,1 ; #DB
|
||||||
movzx ecx, bl
|
je debug_ex
|
||||||
push ecx
|
movzx edx, bl ; debug_message data=Number_Of_Exception
|
||||||
mov ecx, [TASK_BASE]
|
mov ecx,1 ; debug_message code=other_exception
|
||||||
push dword [ecx+TASKDATA.pid] ; PID of current process
|
jmp debug_ex.notify ; notify debugger and suspend ourself
|
||||||
push 12
|
|
||||||
pop ecx
|
|
||||||
push 1 ; 1=exception
|
|
||||||
call debugger_notify
|
|
||||||
pop ecx
|
|
||||||
pop ecx
|
|
||||||
pop ecx
|
|
||||||
mov edx, [TASK_BASE]
|
|
||||||
mov byte [edx+TASKDATA.state], 1 ; suspended
|
|
||||||
call change_task
|
|
||||||
restore_ring3_context
|
|
||||||
iretd
|
|
||||||
|
|
||||||
iglobal
|
IRetToUserHook:
|
||||||
hexletters db '0123456789ABCDEF'
|
xchg eax, [reg_eip]
|
||||||
error_interrupt dd -1
|
sub dword[reg_esp3], 4
|
||||||
endg
|
mov edi, [reg_esp3]
|
||||||
|
stosd
|
||||||
|
restore_ring3_context
|
||||||
|
unknown_interrupt:
|
||||||
|
iretd
|
||||||
|
|
||||||
;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
|
;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
|
||||||
show_error_parameters:
|
show_error_parameters:
|
||||||
mov eax,[CURRENT_TASK]
|
mov edx,[TASK_BASE] ;not scratched below
|
||||||
shl eax, 5
|
DEBUGF 1, "K : Process - forced terminate PID: %x\n", [edx+TASKDATA.pid]
|
||||||
DEBUGF 1, "K : Process - forced terminate PID: %x\n", [CURRENT_TASK + TASKDATA.pid + eax]
|
cmp bl, 0x08
|
||||||
mov eax, [error_interrupt]
|
jb .l0
|
||||||
cmp al, 0x08
|
cmp bl, 0x0e
|
||||||
jne @f
|
jbe .l1
|
||||||
DEBUGF 1, "K : Double fault\n"
|
.l0: mov bl, 0x09
|
||||||
jmp defined_error
|
.l1: movzx eax,bl
|
||||||
@@:
|
mov eax,[msg_fault_sel+eax*4 - 0x08*4]
|
||||||
cmp al, 0x0a
|
DEBUGF 1, "K : %s\n", eax
|
||||||
jne @f
|
mov eax, [reg_cs3+4]
|
||||||
DEBUGF 1, "K : Invalid TSS\n"
|
|
||||||
jmp defined_error
|
|
||||||
@@:
|
|
||||||
cmp al, 0x0b
|
|
||||||
jne @f
|
|
||||||
DEBUGF 1, "K : Segment not present\n"
|
|
||||||
jmp defined_error
|
|
||||||
@@:
|
|
||||||
cmp al, 0x0c
|
|
||||||
jne @f
|
|
||||||
DEBUGF 1, "K : Stack fault\n"
|
|
||||||
jmp defined_error
|
|
||||||
@@:
|
|
||||||
cmp al, 0x0d
|
|
||||||
jne @f
|
|
||||||
DEBUGF 1, "K : General protection fault\n"
|
|
||||||
jmp defined_error
|
|
||||||
@@:
|
|
||||||
cmp al, 0x0e
|
|
||||||
jne @f
|
|
||||||
DEBUGF 1, "K : Page fault\n"
|
|
||||||
jmp defined_error
|
|
||||||
@@:
|
|
||||||
DEBUGF 1, "K : Undefined Exception\n"
|
|
||||||
defined_error:
|
|
||||||
DEBUGF 1, "K : EAX : %x EBX : %x ECX : %x\n", [esp + 0x20], [esp - 12 + 0x20], [esp - 4 + 0x20]
|
|
||||||
DEBUGF 1, "K : EDX : %x ESI : %x EDI : %x\n", [esp - 8 + 0x20], [esp - 24 + 0x20], [esp - 28 + 0x20]
|
|
||||||
DEBUGF 1, "K : EBP : %x EIP : %x ", [esp - 20 + 0x20], [esp + 4 + 0x20]
|
|
||||||
|
|
||||||
mov eax, [esp + 8 + 0x20]
|
|
||||||
mov edi, msg_sel_app
|
mov edi, msg_sel_app
|
||||||
mov ebx, [esp + 16 + 0x20]
|
mov ebx, [reg_esp3+4]
|
||||||
cmp eax, app_code
|
cmp eax, app_code
|
||||||
je @f
|
je @f
|
||||||
mov edi, msg_sel_ker
|
mov edi, msg_sel_ker
|
||||||
mov ebx, [esp - 16 + 0x20]
|
mov ebx, [reg_esp0+4]
|
||||||
@@:
|
@@: DEBUGF 1, "K : EAX : %x EBX : %x ECX : %x\n", [reg_eax+4], [reg_ebx+4], [reg_ecx+4]
|
||||||
DEBUGF 1, "ESP : %x\nK : Flags : %x CS : %x (%s)\n", ebx, [esp + 12 + 0x20], eax, edi
|
DEBUGF 1, "K : EDX : %x ESI : %x EDI : %x\n", [reg_edx+4], [reg_esi+4], [reg_edi+4]
|
||||||
|
DEBUGF 1, "K : EBP : %x EIP : %x ESP : %x\n", [reg_ebp+4], [reg_eip+4], ebx
|
||||||
|
DEBUGF 1, "K : Flags : %x CS : %x (%s)\n", [reg_eflags+4], eax, edi
|
||||||
ret
|
ret
|
||||||
;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
|
;-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
|
||||||
|
|
||||||
|
restore reg_ss
|
||||||
|
restore reg_esp3
|
||||||
|
restore reg_eflags
|
||||||
|
restore reg_cs
|
||||||
|
restore reg_eip
|
||||||
|
restore reg_eax
|
||||||
|
restore reg_ecx
|
||||||
|
restore reg_edx
|
||||||
|
restore reg_ebx
|
||||||
|
restore reg_esp0
|
||||||
|
restore reg_ebp
|
||||||
|
restore reg_esi
|
||||||
|
restore reg_edi
|
||||||
|
|
||||||
; irq1 -> hid/keyboard.inc
|
; irq1 -> hid/keyboard.inc
|
||||||
macro irqh [num]
|
macro irqh [num] {
|
||||||
{
|
|
||||||
forward
|
|
||||||
p_irq#num :
|
p_irq#num :
|
||||||
mov edi, num
|
mov edi, num
|
||||||
jmp irqhandler
|
jmp irqhandler
|
||||||
}
|
}
|
||||||
|
|
||||||
irqh 2,3,4,5,7,8,9,10,11
|
|
||||||
|
|
||||||
|
|
||||||
p_irq6:
|
p_irq6:
|
||||||
@ -277,26 +271,18 @@ ready_for_next_irq_1:
|
|||||||
ret
|
ret
|
||||||
|
|
||||||
irqD:
|
irqD:
|
||||||
save_ring3_context
|
push eax
|
||||||
mov ax, app_data ;os_data
|
|
||||||
mov ds, ax
|
|
||||||
mov es, ax
|
|
||||||
|
|
||||||
mov dx,0xf0
|
|
||||||
mov al,0
|
mov al,0
|
||||||
out dx,al
|
out 0xf0,al
|
||||||
|
|
||||||
mov dx,0xa0
|
|
||||||
mov al,0x20
|
mov al,0x20
|
||||||
out dx,al
|
out 0xa0,al
|
||||||
mov dx,0x20
|
out 0x20,al
|
||||||
out dx,al
|
pop eax
|
||||||
|
|
||||||
restore_ring3_context
|
|
||||||
|
|
||||||
iret
|
iret
|
||||||
|
|
||||||
|
|
||||||
|
irqh 2,3,4,5,7,8,9,10,11
|
||||||
|
|
||||||
irqhandler:
|
irqhandler:
|
||||||
|
|
||||||
mov esi,edi ; 1
|
mov esi,edi ; 1
|
||||||
|
|||||||
@ -351,27 +351,6 @@ endg
|
|||||||
; a protected-mode interrupt handler (typically the general-protection
|
; a protected-mode interrupt handler (typically the general-protection
|
||||||
; exception handler, which in turn calls the virtual 8086-mode monitor).
|
; exception handler, which in turn calls the virtual 8086-mode monitor).
|
||||||
|
|
||||||
v86_debug_exc:
|
|
||||||
pushad
|
|
||||||
xor eax, eax
|
|
||||||
mov dr6, eax
|
|
||||||
mov bl, 1
|
|
||||||
jmp v86_exc_c
|
|
||||||
|
|
||||||
v86_page_fault:
|
|
||||||
add esp, 4
|
|
||||||
pushad
|
|
||||||
mov bl, 14
|
|
||||||
jmp v86_exc_c
|
|
||||||
|
|
||||||
v86_except_16:
|
|
||||||
pushad
|
|
||||||
mov bl, 16
|
|
||||||
jmp v86_exc_c
|
|
||||||
v86_except_19:
|
|
||||||
pushad
|
|
||||||
mov bl, 19
|
|
||||||
|
|
||||||
iglobal
|
iglobal
|
||||||
v86_exc_str1 db 'V86 : unexpected exception ',0
|
v86_exc_str1 db 'V86 : unexpected exception ',0
|
||||||
v86_exc_str2 db ' at ',0
|
v86_exc_str2 db ' at ',0
|
||||||
@ -387,11 +366,12 @@ v86_irqerr db 'V86 : IRQ already hooked',13,10,0
|
|||||||
endg
|
endg
|
||||||
|
|
||||||
v86_exc_c:
|
v86_exc_c:
|
||||||
mov ax, app_data
|
|
||||||
mov ds, ax
|
|
||||||
mov es, ax
|
|
||||||
; Did we all that we have wanted to do?
|
; Did we all that we have wanted to do?
|
||||||
mov eax, [esp+v86_regs.size+10h+18h]
|
cmp bl,1
|
||||||
|
jne @f
|
||||||
|
xor eax, eax
|
||||||
|
mov dr6, eax
|
||||||
|
@@: mov eax, [esp+v86_regs.size+10h+18h]
|
||||||
cmp word [esp+v86_regs.eip], ax
|
cmp word [esp+v86_regs.eip], ax
|
||||||
jnz @f
|
jnz @f
|
||||||
shr eax, 16
|
shr eax, 16
|
||||||
|
|||||||
@ -454,8 +454,8 @@ high_code:
|
|||||||
|
|
||||||
; LOAD IDT
|
; LOAD IDT
|
||||||
|
|
||||||
call build_interrupt_table
|
call build_interrupt_table ;lidt is executed
|
||||||
lidt [idtreg]
|
;lidt [idtreg]
|
||||||
|
|
||||||
call init_kernel_heap
|
call init_kernel_heap
|
||||||
stdcall kernel_alloc, RING0_STACK_SIZE+512
|
stdcall kernel_alloc, RING0_STACK_SIZE+512
|
||||||
@ -1296,6 +1296,7 @@ display_number_force:
|
|||||||
xor edx,edx
|
xor edx,edx
|
||||||
call division_64_bits
|
call division_64_bits
|
||||||
div ebx
|
div ebx
|
||||||
|
hexletters = __fdo_hexdigits
|
||||||
add edx,hexletters
|
add edx,hexletters
|
||||||
mov dl,[edx]
|
mov dl,[edx]
|
||||||
mov [edi],dl
|
mov [edi],dl
|
||||||
|
|||||||
@ -70,9 +70,9 @@
|
|||||||
;
|
;
|
||||||
; A400 -> B0FF free
|
; A400 -> B0FF free
|
||||||
|
|
||||||
; B100 -> B2FF IDT
|
; B100 -> B307 IDT for int_0x00..int_0x40
|
||||||
|
|
||||||
; B300 -> BFFF free
|
; B308 -> BFFF free
|
||||||
|
|
||||||
; C000 -> C3FF window stack C000 no of windows - all in words
|
; C000 -> C3FF window stack C000 no of windows - all in words
|
||||||
; C402 -> C7FF window position in stack
|
; C402 -> C7FF window position in stack
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user