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protect thread from external terminate while running sysfn 70

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git-svn-id: svn://kolibrios.org@3296 a494cfbc-eb01-0410-851d-a64ba20cac60
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CleverMouse
2013-02-28 22:03:45 +00:00
parent 910558ed00
commit 165c453d43
9 changed files with 153 additions and 54 deletions
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110
kernel/trunk/kernel.asm
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@@ -612,6 +612,52 @@ no_mode_0x12:
mov [mem_BACKGROUND], 4
mov [img_background], static_background_data
; SET UP OS TASK
mov esi, boot_setostask
call boot_log
xor eax, eax
mov dword [SLOT_BASE+APPDATA.fpu_state], fpu_data
mov dword [SLOT_BASE+APPDATA.exc_handler], eax
mov dword [SLOT_BASE+APPDATA.except_mask], eax
; name for OS/IDLE process
mov dword [SLOT_BASE+256+APPDATA.app_name], dword 'OS/I'
mov dword [SLOT_BASE+256+APPDATA.app_name+4], dword 'DLE '
mov edi, [os_stack_seg]
mov dword [SLOT_BASE+256+APPDATA.pl0_stack], edi
add edi, 0x2000-512
mov dword [SLOT_BASE+256+APPDATA.fpu_state], edi
mov dword [SLOT_BASE+256+APPDATA.saved_esp0], edi; just for case
mov dword [SLOT_BASE+256+APPDATA.terminate_protection], 80000001h
mov esi, fpu_data
mov ecx, 512/4
cld
rep movsd
mov dword [SLOT_BASE+256+APPDATA.exc_handler], eax
mov dword [SLOT_BASE+256+APPDATA.except_mask], eax
mov ebx, SLOT_BASE+256+APP_OBJ_OFFSET
mov dword [SLOT_BASE+256+APPDATA.fd_obj], ebx
mov dword [SLOT_BASE+256+APPDATA.bk_obj], ebx
mov dword [SLOT_BASE+256+APPDATA.cur_dir], sysdir_path
mov dword [SLOT_BASE+256+APPDATA.tls_base], eax
; task list
mov dword [TASK_DATA+TASKDATA.mem_start], eax; process base address
inc eax
mov dword [CURRENT_TASK], eax
mov dword [TASK_COUNT], eax
mov [current_slot], SLOT_BASE+256
mov [TASK_BASE], dword TASK_DATA
mov byte[TASK_DATA+TASKDATA.wnd_number], al ; on screen number
mov dword [TASK_DATA+TASKDATA.pid], eax ; process id number
mov [SLOT_BASE + 256 + APPDATA.dir_table], sys_pgdir - OS_BASE
stdcall kernel_alloc, 0x10000/8
@@ -752,7 +798,6 @@ end if
mov [pci_access_enabled], 1
; SET PRELIMINARY WINDOW STACK AND POSITIONS
mov esi, boot_windefs
@@ -772,52 +817,6 @@ end if
call boot_log
call reserve_irqs_ports
; SET UP OS TASK
mov esi, boot_setostask
call boot_log
xor eax, eax
mov dword [SLOT_BASE+APPDATA.fpu_state], fpu_data
mov dword [SLOT_BASE+APPDATA.exc_handler], eax
mov dword [SLOT_BASE+APPDATA.except_mask], eax
; name for OS/IDLE process
mov dword [SLOT_BASE+256+APPDATA.app_name], dword 'OS/I'
mov dword [SLOT_BASE+256+APPDATA.app_name+4], dword 'DLE '
mov edi, [os_stack_seg]
mov dword [SLOT_BASE+256+APPDATA.pl0_stack], edi
add edi, 0x2000-512
mov dword [SLOT_BASE+256+APPDATA.fpu_state], edi
mov dword [SLOT_BASE+256+APPDATA.saved_esp0], edi; just for case
; [SLOT_BASE+256+APPDATA.io_map] was set earlier
mov esi, fpu_data
mov ecx, 512/4
cld
rep movsd
mov dword [SLOT_BASE+256+APPDATA.exc_handler], eax
mov dword [SLOT_BASE+256+APPDATA.except_mask], eax
mov ebx, SLOT_BASE+256+APP_OBJ_OFFSET
mov dword [SLOT_BASE+256+APPDATA.fd_obj], ebx
mov dword [SLOT_BASE+256+APPDATA.bk_obj], ebx
mov dword [SLOT_BASE+256+APPDATA.cur_dir], sysdir_path
mov dword [SLOT_BASE+256+APPDATA.tls_base], eax
; task list
mov dword [TASK_DATA+TASKDATA.mem_start], eax; process base address
inc eax
mov dword [CURRENT_TASK], eax
mov dword [TASK_COUNT], eax
mov [current_slot], SLOT_BASE+256
mov [TASK_BASE], dword TASK_DATA
mov byte[TASK_DATA+TASKDATA.wnd_number], al ; on screen number
mov dword [TASK_DATA+TASKDATA.pid], eax ; process id number
call init_display
mov eax, [def_cursor]
mov [SLOT_BASE+APPDATA.cursor], eax
@@ -931,8 +930,8 @@ end if
call fs_execute_from_sysdir
; cmp eax,2 ; continue if a process has been loaded
sub eax, 2
jz first_app_found
test eax, eax
jns first_app_found
mov esi, boot_failed
call boot_log
@@ -2110,6 +2109,12 @@ sysfn_terminate: ; 18.2 = TERMINATE
add ecx, CURRENT_TASK+TASKDATA.state
cmp byte [ecx], 9
jz noprocessterminate
push ecx edx
lea edx, [(ecx-(CURRENT_TASK and 1FFFFFFFh)-TASKDATA.state)*8+SLOT_BASE]
call request_terminate
pop edx ecx
test eax, eax
jz noprocessterminate
;--------------------------------------
cmp [_display.select_cursor], 0
je .restore_end
@@ -3489,7 +3494,14 @@ nobackgr:
;--------------------------------------
align 4
markz:
push ecx edx
lea edx, [(edx-(TASK_DATA and 1FFFFFFFh))*8+SLOT_BASE]
call request_terminate
pop edx ecx
test eax, eax
jz @f
mov [edx+TASKDATA.state], byte 3
@@:
add edx, 0x20
loop markz
;--------------------------------------