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[KERNEL]: Replaced magic numbers with constants:

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PAGE_SIZE, -PAGE_SIZE, PAGE_SIZE-1

git-svn-id: svn://kolibrios.org@9900 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Doczom 2023-02-14 23:26:59 +00:00
parent aae65fd398
commit dd33210115
3 changed files with 84 additions and 84 deletions
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74
kernel/trunk/core/heap.inc
View File

@ -137,7 +137,7 @@ proc init_kernel_heap
mov [edi + MEM_BLOCK.list.next], eax
mov [edi + MEM_BLOCK.list.prev], eax
mov [edi + MEM_BLOCK.base], HEAP_BASE
mov [edi + MEM_BLOCK.size], 4096*sizeof.MEM_BLOCK
mov [edi + MEM_BLOCK.size], PAGE_SIZE * sizeof.MEM_BLOCK
mov [edi + MEM_BLOCK.flags], MEM_BLOCK_USED
mov [ecx + MEM_BLOCK.next_block], eax
@ -150,11 +150,11 @@ proc init_kernel_heap
mov [ebx + MEM_BLOCK.next_block], ecx
mov [ebx + MEM_BLOCK.prev_block], edi
mov [ebx + MEM_BLOCK.base], HEAP_BASE + 4096*sizeof.MEM_BLOCK
mov [ebx + MEM_BLOCK.base], HEAP_BASE + PAGE_SIZE * sizeof.MEM_BLOCK
mov ecx, [pg_data.kernel_pages]
shl ecx, 12
sub ecx, HEAP_BASE-OS_BASE + 4096*sizeof.MEM_BLOCK
sub ecx, HEAP_BASE-OS_BASE + PAGE_SIZE * sizeof.MEM_BLOCK
mov [heap_size], ecx
mov [heap_free], ecx
mov [ebx + MEM_BLOCK.size], ecx
@ -166,7 +166,7 @@ proc init_kernel_heap
mov ecx, mem_block_list + 63*8
list_add ebx, ecx
mov ecx, 4096-3-1
mov ecx, PAGE_SIZE -3-1
mov eax, HEAP_BASE + sizeof.MEM_BLOCK*4
mov [next_memblock], HEAP_BASE + sizeof.MEM_BLOCK *3
@ -268,8 +268,8 @@ proc alloc_kernel_space stdcall, size:dword
push edi
mov eax, [size]
add eax, 4095
and eax, not 4095
add eax, PAGE_SIZE-1
and eax, -PAGE_SIZE
mov [size], eax
cmp eax, [heap_free]
@ -461,8 +461,8 @@ proc kernel_alloc stdcall, size:dword
push edi
mov eax, [size]
add eax, 4095
and eax, not 4095;
add eax, PAGE_SIZE-1
and eax, -PAGE_SIZE;
mov [size], eax
and eax, eax
jz .err
@ -502,7 +502,7 @@ proc kernel_alloc stdcall, size:dword
jz .err
stdcall map_page, edx, eax, dword (PG_GLOBAL + PG_SWR)
add edx, 0x1000
add edx, PAGE_SIZE
dec ebx
jnz @B
.end:
@ -565,8 +565,8 @@ proc init_heap
call mutex_init
mov esi, [ebx + PROC.mem_used]
add esi, 4095
and esi, not 4095
add esi, PAGE_SIZE-1
and esi, -PAGE_SIZE
mov [ebx + PROC.mem_used], esi
mov eax, HEAP_TOP
mov [ebx + PROC.heap_base], esi
@ -592,7 +592,7 @@ proc user_alloc stdcall, alloc_size:dword
mov ecx, [alloc_size]
add ecx, (4095 + PAGE_SIZE)
and ecx, not 4095
and ecx, -PAGE_SIZE
mov esi, [ebx + PROC.heap_base]
mov edi, [ebx + PROC.heap_top]
.scan:
@ -604,7 +604,7 @@ proc user_alloc stdcall, alloc_size:dword
mov eax, [page_tabs + ebx*4]
test al, MEM_BLOCK_FREE
jz .test_used
and eax, 0xFFFFF000
and eax, -PAGE_SIZE
cmp eax, ecx ;alloc_size
jb .m_next
jz @f
@ -630,14 +630,14 @@ proc user_alloc stdcall, alloc_size:dword
mov edx, [current_process]
mov ebx, [alloc_size]
add ebx, 0xFFF
and ebx, not 0xFFF
add ebx, PAGE_SIZE-1
and ebx, -PAGE_SIZE
add [edx + PROC.mem_used], ebx
lea ecx, [edx + PROC.heap_lock]
call mutex_unlock
lea eax, [esi + 4096]
lea eax, [esi + PAGE_SIZE]
pop edi
pop esi
@ -647,7 +647,7 @@ proc user_alloc stdcall, alloc_size:dword
test al, MEM_BLOCK_USED
jz .m_exit
and eax, 0xFFFFF000 ; not PAGESIZE
and eax, -PAGE_SIZE
.m_next:
add esi, eax
jmp .scan
@ -675,9 +675,9 @@ proc user_alloc_at stdcall, address:dword, alloc_size:dword
call mutex_lock
mov edx, [address]
and edx, not 0xFFF
and edx, -PAGE_SIZE
mov [address], edx
sub edx, 0x1000
sub edx, PAGE_SIZE
jb .error
mov esi, [ebx + PROC.heap_base]
mov edi, [ebx + PROC.heap_top]
@ -690,7 +690,7 @@ proc user_alloc_at stdcall, address:dword, alloc_size:dword
shr ebx, 12
mov eax, [page_tabs + ebx*4]
mov ecx, eax
and ecx, 0xFFFFF000
and ecx, -PAGE_SIZE
add ecx, esi
cmp edx, ecx
jb .found
@ -711,7 +711,7 @@ proc user_alloc_at stdcall, address:dword, alloc_size:dword
jz .error
mov eax, ecx
sub eax, edx
sub eax, 0x1000
sub eax, PAGE_SIZE
cmp eax, [alloc_size]
jb .error
@ -729,7 +729,7 @@ proc user_alloc_at stdcall, address:dword, alloc_size:dword
.nofirst:
mov eax, [alloc_size]
add eax, 0x1FFF
and eax, not 0xFFF
and eax, -PAGE_SIZE
mov ebx, edx
add edx, eax
shr ebx, 12
@ -754,8 +754,8 @@ proc user_alloc_at stdcall, address:dword, alloc_size:dword
.nothird:
mov edx, [current_process]
mov ebx, [alloc_size]
add ebx, 0xFFF
and ebx, not 0xFFF
add ebx, PAGE_SIZE-1
and ebx, -PAGE_SIZE
add [edx + PROC.mem_used], ebx
lea ecx, [edx + PROC.heap_lock]
@ -792,11 +792,11 @@ proc user_free stdcall, base:dword
test al, MEM_BLOCK_DONT_FREE
jnz .cantfree
and eax, not 4095
and eax, -PAGE_SIZE
mov ecx, eax
or al, MEM_BLOCK_FREE
mov [page_tabs + (esi-1)*4], eax
sub ecx, 4096
sub ecx, PAGE_SIZE
mov ebx, ecx
shr ecx, 12
jz .released
@ -873,7 +873,7 @@ proc user_unmap stdcall, base:dword, offset:dword, size:dword
lea edx, [page_tabs + edx*4] ; unmap offset
mov ecx, [size]
add ecx, 4095
add ecx, PAGE_SIZE-1
shr ecx, 12 ; unmap size in pages
shr eax, 12 ; block size + 1 page
@ -884,7 +884,7 @@ proc user_unmap stdcall, base:dword, offset:dword, size:dword
ja .error
mov ebx, [offset]
and ebx, not 4095 ; is it required ?
and ebx, -PAGE_SIZE ; is it required ?
add ebx, [base]
.unmap:
@ -898,7 +898,7 @@ proc user_unmap stdcall, base:dword, offset:dword, size:dword
invlpg [ebx] ; when we start using
call free_page ; empty c-o-w page instead this ?
@@:
add ebx, 4096 ; PAGESIZE?
add ebx, PAGE_SIZE
add edx, 4
dec ecx
jnz .unmap
@ -948,7 +948,7 @@ user_normalize:
jz .err
and dword[page_tabs + edx*4], 0
add eax, ebx
and eax, not 4095 ; not (PAGESIZE - 1) ?
and eax, -PAGE_SIZE
or eax, MEM_BLOCK_FREE
mov [page_tabs + esi*4], eax
jmp @B
@ -978,7 +978,7 @@ user_realloc:
call mutex_lock
pop eax
lea ecx, [eax - 0x1000]
lea ecx, [eax - PAGE_SIZE]
shr ecx, 12
mov edx, [page_tabs + ecx*4]
test dl, MEM_BLOCK_USED
@ -1022,11 +1022,11 @@ user_realloc:
cmp ebx, 1
jnz .nofreeall
mov eax, [page_tabs + ecx*4]
and eax, not 0xFFF
and eax, -PAGE_SIZE
mov edx, [current_process]
mov ebx, [edx + PROC.mem_used]
sub ebx, eax
add ebx, 0x1000
add ebx, PAGE_SIZE
or al, MEM_BLOCK_FREE
mov [page_tabs + ecx*4], eax
push esi edi
@ -1174,7 +1174,7 @@ user_realloc:
shl eax, 12
push eax
mov eax, [page_tabs + ecx*4]
and eax, not 0xFFF
and eax, -PAGE_SIZE
or al, MEM_BLOCK_FREE
sub edx, ecx
mov [page_tabs + ecx*4], eax
@ -1333,8 +1333,8 @@ align 4
test ecx, ecx
jz .fail
add ecx, 4095
and ecx, -4096
add ecx, PAGE_SIZE-1
and ecx, -PAGE_SIZE
mov [size], ecx
mov eax, sizeof.SMEM
@ -1438,7 +1438,7 @@ align 4
or edx, PG_SHARED + PG_UR
@@:
lodsd
and eax, 0xFFFFF000
and eax, -PAGE_SIZE
or eax, edx
stosd
loop @B

64
kernel/trunk/core/memory.inc
View File

@ -173,10 +173,10 @@ proc map_io_mem stdcall, base:dword, size:dword, flags:dword
push edi
mov eax, [size]
add eax, [base]
add eax, 4095
and eax, -4096
add eax, PAGE_SIZE-1
and eax, -PAGE_SIZE
mov ecx, [base]
and ecx, -4096
and ecx, -PAGE_SIZE
sub eax, ecx
mov [size], eax
@ -185,7 +185,7 @@ proc map_io_mem stdcall, base:dword, size:dword, flags:dword
jz .fail
push eax
mov edi, 0x1000
mov edi, PAGE_SIZE
mov ebx, eax
mov ecx, [size]
mov edx, [base]
@ -203,7 +203,7 @@ proc map_io_mem stdcall, base:dword, size:dword, flags:dword
pop eax
mov edx, [base]
and edx, 4095
and edx, PAGE_SIZE-1
add eax, edx
.fail:
pop edi
@ -236,8 +236,8 @@ commit_pages:
@@:
stosd
invlpg [ebx]
add eax, 0x1000
add ebx, 0x1000
add eax, PAGE_SIZE
add ebx, PAGE_SIZE
loop @B
pop edi
@ -294,7 +294,7 @@ release_pages:
mov ebx, eax
.next:
add edi, 0x1000
add edi, PAGE_SIZE
add esi, 4
loop @B
@ -327,7 +327,7 @@ unmap_pages:
@@:
stosd
invlpg [edx]
add edx, 0x1000
add edx, PAGE_SIZE
loop @b
pop edi
@ -340,7 +340,7 @@ proc map_page_table stdcall, lin_addr:dword, phis_addr:dword
mov ebx, [lin_addr]
shr ebx, 22
mov eax, [phis_addr]
and eax, not 0xFFF
and eax, -PAGE_SIZE
or eax, PG_UWR
mov dword [master_tab + ebx*4], eax
mov eax, [lin_addr]
@ -389,7 +389,7 @@ proc create_trampoline_pgmap
; Therefore, allocate memory with kernel_alloc,
; this will allocate physical page and a linear address somewhere,
; and deallocate only linear address with free_kernel_space.
stdcall kernel_alloc, 0x1000
stdcall kernel_alloc, PAGE_SIZE
mov edi, eax
mov esi, master_tab
mov ecx, 1024
@ -418,12 +418,12 @@ proc new_mem_resize stdcall, new_size:dword
jne .exit
mov edi, [new_size]
add edi, 4095
add edi, PAGE_SIZE-1
and edi, not 4095
mov [new_size], edi
mov esi, [ebx + PROC.mem_used]
add esi, 4095
add esi, PAGE_SIZE-1
and esi, not 4095
cmp edi, esi
@ -447,7 +447,7 @@ proc new_mem_resize stdcall, new_size:dword
.next:
inc edi
add ebx, 0x1000
add ebx, PAGE_SIZE
cmp edi, esi
jb @B
@ -548,7 +548,7 @@ get_pg_addr:
shr eax, 12
mov eax, [page_tabs + (eax+(OS_BASE shr 12))*4]
@@:
and eax, 0xFFFFF000
and eax, -PAGE_SIZE
ret
@ -606,7 +606,7 @@ proc page_fault_handler
stdcall map_page, [.err_addr], eax, PG_UWR
mov edi, [.err_addr]
and edi, 0xFFFFF000
and edi, -PAGE_SIZE
mov ecx, 1024
xor eax, eax
;cld ;caller is duty for this
@ -619,7 +619,7 @@ proc page_fault_handler
.err_access:
; access denied? this may be a result of copy-on-write protection for DLL
; check list of HDLLs
and ebx, not 0xFFF
and ebx, -PAGE_SIZE
mov eax, [current_process]
mov eax, [eax + PROC.dlls_list_ptr]
test eax, eax
@ -680,7 +680,7 @@ proc page_fault_handler
stdcall map_page, [.err_addr], eax, dword PG_SWR
pop eax
mov edi, [.err_addr]
and edi, -4096
and edi, -PAGE_SIZE
lea esi, [edi+(not tss._io_map_0)+1]; -tss._io_map_0
mov ebx, esi
@ -690,7 +690,7 @@ proc page_fault_handler
mov [edx + APPDATA.io_map + ebx*4], eax
add esi, [default_io_map]
mov ecx, 4096/4
mov ecx, PAGE_SIZE/4
;cld ;caller is duty for this
rep movsd
jmp .exit
@ -719,14 +719,14 @@ proc map_mem_ipc stdcall, lin_addr:dword,slot:dword,\
shr ebx, 22
mov eax, [eax + PROC.pdt_0 + ebx*4] ;get page table
mov esi, [ipc_ptab]
and eax, 0xFFFFF000
and eax, -PAGE_SIZE
jz .exit
stdcall map_page, esi, eax, PG_SWR
@@:
mov edi, [lin_addr]
and edi, 0xFFFFF000
and edi, -PAGE_SIZE
mov ecx, [buf_size]
add ecx, 4095
add ecx, PAGE_SIZE-1
shr ecx, 12
inc ecx ; ???????????
@ -749,7 +749,7 @@ proc map_mem_ipc stdcall, lin_addr:dword,slot:dword,\
inc ebx
mov eax, [process]
mov eax, [eax + PROC.pdt_0 + ebx*4]
and eax, 0xFFFFF000
and eax, -PAGE_SIZE
jz .exit
stdcall map_page, esi, eax, PG_SWR
@ -782,14 +782,14 @@ proc map_memEx stdcall, lin_addr:dword,slot:dword,\
shr ebx, 22
mov eax, [eax + PROC.pdt_0 + ebx*4] ;get page table
mov esi, [proc_mem_tab]
and eax, 0xFFFFF000
and eax, -PAGE_SIZE
jz .exit
stdcall map_page, esi, eax, PG_SWR
@@:
mov edi, [lin_addr]
and edi, 0xFFFFF000
and edi, -PAGE_SIZE
mov ecx, [buf_size]
add ecx, 4095
add ecx, PAGE_SIZE-1
shr ecx, 12
inc ecx ; ???????????
@ -812,7 +812,7 @@ proc map_memEx stdcall, lin_addr:dword,slot:dword,\
inc ebx
mov eax, [process]
mov eax, [eax + PROC.pdt_0 + ebx*4]
and eax, 0xFFFFF000
and eax, -PAGE_SIZE
jz .exit
stdcall map_page, esi, eax, PG_SWR
@ -874,7 +874,7 @@ proc safe_map_page stdcall, slot:dword, req_access:dword, ofs:dword
cmp ecx, eax
jz .no_hdll
mov ebx, [ofs]
and ebx, not 0xFFF
and ebx, -PAGE_SIZE
sub ebx, [ecx + HDLL.base]
cmp ebx, [ecx + HDLL.size]
jb .hdll_found
@ -897,7 +897,7 @@ proc safe_map_page stdcall, slot:dword, req_access:dword, ofs:dword
stdcall map_page, edi, eax, [req_access]
push esi edi
mov esi, ebx
mov ecx, 4096/4
mov ecx, PAGE_SIZE/4
rep movsd
pop edi esi
pop ecx ebx
@ -926,12 +926,12 @@ sys_IPC:
mov [eax + APPDATA.ipc_size], edx
add edx, ecx
add edx, 4095
and edx, not 4095
add edx, PAGE_SIZE-1
and edx, -PAGE_SIZE
.touch:
mov eax, [ecx]
add ecx, 0x1000
add ecx, PAGE_SIZE
cmp ecx, edx
jb .touch

30
kernel/trunk/core/taskman.inc
View File

@ -372,7 +372,7 @@ proc create_process stdcall, app_size:dword
mov eax, edi
call get_pg_addr
mov [edi - 4096 + PROC.pdt_0_phys], eax
mov [edi - PAGE_SIZE + PROC.pdt_0_phys], eax
mov ecx, (OS_BASE shr 20)/4
xor eax, eax
@ -384,9 +384,9 @@ proc create_process stdcall, app_size:dword
mov eax, [edi - 8192 + PROC.pdt_0_phys]
or eax, PG_SWR
mov [edi - 4096 + (page_tabs shr 20)], eax
mov [edi - PAGE_SIZE + (page_tabs shr 20)], eax
lea edx, [edi-4096]
lea edx, [edi - PAGE_SIZE]
mov esi, [app_tabs]
.alloc_page_dir:
@ -474,7 +474,7 @@ align 4
mov eax, [esi]
test eax, 1
jz .next
and eax, not 0xFFF
and eax, -PAGE_SIZE
stdcall map_page, [tmp_task_ptab], eax, PG_SWR
stdcall destroy_page_table, [tmp_task_ptab]
mov eax, [esi]
@ -730,7 +730,7 @@ proc new_sys_threads
jz @F
push edx
stdcall user_alloc, 4096
stdcall user_alloc, PAGE_SIZE
pop edx
test eax, eax
jz .failed1;eax=0
@ -763,8 +763,8 @@ proc map_process_image stdcall, img_size:dword, file_base:dword, file_size:dword
mov edx, [img_size]
mov esi, [file_base]
mov ecx, [file_size]
add edx, 4095
add ecx, 4095
add edx, PAGE_SIZE-1
add ecx, PAGE_SIZE-1
shr edx, 12 ; total pages
shr ecx, 12 ; image pages
@ -774,7 +774,7 @@ proc map_process_image stdcall, img_size:dword, file_base:dword, file_size:dword
.map_image:
lodsd
and eax, -4096
and eax, -PAGE_SIZE
or eax, PG_UWR
stosd
dec edx
@ -794,10 +794,10 @@ proc map_process_image stdcall, img_size:dword, file_base:dword, file_size:dword
mov edi, [file_size]
mov ecx, [img_size]
add edi, 4095
and edi, -4096
add ecx, 4095
and ecx, -4096
add edi, PAGE_SIZE-1
and edi, -PAGE_SIZE
add ecx, PAGE_SIZE-1
and ecx, -PAGE_SIZE
sub ecx, edi
shr ecx, 2
xor eax, eax
@ -843,8 +843,8 @@ common_app_entry:
cmp ecx, 256
jb .copy_cmdline
mov edi, [ebp + APP_HDR._emem]
add edi, 4095
and edi, -4096
add edi, PAGE_SIZE-1
and edi, -PAGE_SIZE
sub edi, ecx
dec edi
cmp word [6], '00'
@ -864,7 +864,7 @@ common_app_entry:
cmp word [6], '02'
jne .try_load_dll ;.cleanup
call init_heap
stdcall user_alloc, 4096
stdcall user_alloc, PAGE_SIZE
mov edx, [current_slot]
mov [edx + APPDATA.tls_base], eax
mov [tls_data_l+2], ax