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;; ;;
;; Copyright (C) KolibriOS team 2004-2024. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; External kernel dependencies (libraries) loading.
; The code currently does not work, requires correcting dll.inc.
if 0
iglobal
tmp_file_name_size dd 1
endg
uglobal
tmp_file_name_table dd ?
s_libname rb 64
def_val_1 db ?
endg
macro library [name,fname]
{
forward
dd __#name#_library_table__,__#name#_library_name__
common
dd 0
forward
__#name#_library_name__ db fname,0
}
macro import lname,[name,sname]
{
common
align 4
__#lname#_library_table__:
forward
name dd __#name#_import_name__
common
dd 0
forward
__#name#_import_name__ db sname,0
}
macro export [name,sname]
{
align 4
forward
dd __#name#_export_name__,name
common
dd 0
forward
__#name#_export_name__ db sname,0
}
align 4 ; loading library (use kernel functions)
proc load_k_library stdcall, file_name:dword
locals
coff dd ?
sym dd ?
strings dd ?
img_size dd ?
img_base dd ?
exports dd ?
endl
cli
stdcall load_file, [file_name]
test eax, eax
jz .fail
mov [coff], eax
movzx ecx, [eax + CFH.nSections]
xor ebx, ebx
lea edx, [eax+20]
@@:
add ebx, [edx + CFS.SizeOfRawData]
add ebx, 15
and ebx, not 15
add edx, COFF_SECTION_SIZE
dec ecx
jnz @B
mov [img_size], ebx
stdcall kernel_alloc, [img_size]
test eax, eax
jz .fail
mov [img_base], eax
mov edx, [coff]
movzx ebx, [edx + CFH.nSections]
mov edi, [img_base]
lea eax, [edx+20]
@@:
mov [eax + CFS.VirtualAddress], edi
mov esi, [eax + CFS.PtrRawData]
test esi, esi
jnz .copy
add edi, [eax + CFS.SizeOfRawData]
jmp .next
.copy:
add esi, edx
mov ecx, [eax + CFS.SizeOfRawData]
cld
rep movsb
.next:
add edi, 15
and edi, not 15
add eax, COFF_SECTION_SIZE
dec ebx
jnz @B
mov ebx, [edx + CFH.pSymTable]
add ebx, edx
mov [sym], ebx
mov ecx, [edx + CFH.nSymbols]
add ecx, ecx
lea ecx, [ecx + ecx*8];ecx*=18 = nSymbols*CSYM_SIZE
add ecx, [sym]
mov [strings], ecx
lea eax, [edx+20]
stdcall fix_coff_symbols, eax, [sym], [edx + CFH.nSymbols], \
[strings], dword 0
test eax, eax
jnz @F
@@:
mov edx, [coff]
movzx ebx, [edx + CFH.nSections]
xor edi, edi
lea eax, [edx+20]
@@:
add [eax + CFS.VirtualAddress], edi ;patch user space offset
add eax, COFF_SECTION_SIZE
dec ebx
jnz @B
add edx, 20
stdcall fix_coff_relocs, [coff], edx, [sym]
mov ebx, [coff]
stdcall get_coff_sym, [sym], [ebx+CFH.nSymbols], szEXPORTS
mov [exports], eax
stdcall kernel_free, [coff]
mov eax, [exports]
ret
.fail:
xor eax, eax
ret
endp
proc dll.Load, import_table:dword
mov esi, [import_table]
.next_lib:
mov edx, [esi]
or edx, edx
jz .exit
push esi
mov edi, s_libname
mov al, '/'
stosb
mov esi, sysdir_path
@@:
lodsb
stosb
or al, al
jnz @b
dec edi
mov [edi], dword '/lib'
mov [edi+4], byte '/'
add edi, 5
pop esi
push esi
mov esi, [esi+4]
@@:
lodsb
stosb
or al, al
jnz @b
pushad
stdcall load_k_library, s_libname
mov [esp+28], eax
popad
or eax, eax
jz .fail
stdcall dll.Link, eax, edx
stdcall dll.Init, [eax+4]
pop esi
add esi, 8
jmp .next_lib
.exit:
xor eax, eax
ret
.fail:
add esp, 4
xor eax, eax
inc eax
ret
endp
proc dll.Link, exp:dword,imp:dword
push eax
mov esi, [imp]
test esi, esi
jz .done
.next:
lodsd
test eax, eax
jz .done
stdcall dll.GetProcAddress, [exp], eax
or eax, eax
jz @f
mov [esi-4], eax
jmp .next
@@:
mov dword[esp], 0
.done:
pop eax
ret
endp
proc dll.Init, dllentry:dword
pushad
mov eax, mem.Alloc
mov ebx, mem.Free
mov ecx, mem.ReAlloc
mov edx, dll.Load
stdcall [dllentry]
popad
ret
endp
proc dll.GetProcAddress, exp:dword,sz_name:dword
mov edx, [exp]
.next:
test edx, edx
jz .end
stdcall strncmp, [edx], [sz_name], dword -1
test eax, eax
jz .ok
add edx, 8
jmp .next
.ok:
mov eax, [edx+4]
.end:
ret
endp
;-----------------------------------------------------------------------------
proc mem.Alloc size ;/////////////////////////////////////////////////////////
;-----------------------------------------------------------------------------
push ebx ecx
; mov eax,[size]
; lea ecx,[eax+4+4095]
; and ecx,not 4095
; stdcall kernel_alloc, ecx
; add ecx,-4
; mov [eax],ecx
; add eax,4
stdcall kernel_alloc, [size]
pop ecx ebx
ret
endp
;-----------------------------------------------------------------------------
proc mem.ReAlloc mptr,size;///////////////////////////////////////////////////
;-----------------------------------------------------------------------------
push ebx ecx esi edi eax
mov eax, [mptr]
mov ebx, [size]
or eax, eax
jz @f
lea ecx, [ebx+4+4095]
and ecx, not 4095
add ecx, -4
cmp ecx, [eax-4]
je .exit
@@:
mov eax, ebx
call mem.Alloc
xchg eax, [esp]
or eax, eax
jz .exit
mov esi, eax
xchg eax, [esp]
mov edi, eax
mov ecx, [esi-4]
cmp ecx, [edi-4]
jbe @f
mov ecx, [edi-4]
@@:
add ecx, 3
shr ecx, 2
cld
rep movsd
xchg eax, [esp]
call mem.Free
.exit:
pop eax edi esi ecx ebx
ret
endp
;-----------------------------------------------------------------------------
proc mem.Free mptr ;//////////////////////////////////////////////////////////
;-----------------------------------------------------------------------------
; mov eax,[mptr]
; or eax,eax
; jz @f
; push ebx ecx
; lea ecx,[eax-4]
; stdcall kernel_free, ecx
; pop ecx ebx
; @@: ret
stdcall kernel_free, [mptr]
ret
endp
proc load_file_parse_table
stdcall kernel_alloc, 0x1000
mov [tmp_file_name_table], eax
mov edi, eax
mov esi, sysdir_name
mov ecx, 128/4
rep movsd
invoke ini.enum_keys, conf_fname, conf_path_sect, get_every_key
mov eax, [tmp_file_name_table]
mov [full_file_name_table], eax
mov eax, [tmp_file_name_size]
mov [full_file_name_table.size], eax
ret
endp
proc get_every_key stdcall, f_name, sec_name, key_name
mov esi, [key_name]
mov ecx, esi
cmp byte [esi], '/'
jnz @f
inc esi
@@:
mov edi, [tmp_file_name_size]
shl edi, 7
cmp edi, 0x1000
jae .stop_parse
add edi, [tmp_file_name_table]
lea ebx, [edi+64]
@@:
cmp edi, ebx
jae .skip_this_key
lodsb
test al, al
jz @f
or al, 20h
stosb
jmp @b
.stop_parse:
xor eax, eax
ret
@@:
stosb
invoke ini.get_str, [f_name], [sec_name], ecx, ebx, 64, def_val_1
cmp byte [ebx], '/'
jnz @f
lea esi, [ebx+1]
mov edi, ebx
mov ecx, 63
rep movsb
@@:
push ebp
mov ebp, [tmp_file_name_table]
mov ecx, [tmp_file_name_size]
jecxz .noreplace
mov eax, ecx
dec eax
shl eax, 7
add ebp, eax
.replace_loop:
mov edi, ebx
mov esi, ebp
@@:
lodsb
test al, al
jz .doreplace
mov dl, [edi]
inc edi
test dl, dl
jz .replace_loop_cont
or dl, 20h
cmp al, dl
jz @b
jmp .replace_loop_cont
.doreplace:
cmp byte [edi], 0
jz @f
cmp byte [edi], '/'
jnz .replace_loop_cont
@@:
lea esi, [ebp+64]
call .replace
jc .skip_this_key2
.replace_loop_cont:
sub ebp, 128
loop .replace_loop
.noreplace:
pop ebp
inc [tmp_file_name_size]
.skip_this_key:
xor eax, eax
inc eax
ret
.skip_this_key2:
pop ebp
jmp .skip_this_key
endp
proc get_every_key.replace
; in: ebx->destination, esi->first part of name, edi->second part of name
; maximum length is 64 bytes
; out: CF=1 <=> overflow
sub esp, 64 ; allocate temporary buffer in stack
push esi
lea esi, [esp+4] ; esi->tmp buffer
xchg esi, edi ; edi->tmp buffer, esi->source
@@: ; save second part of name to temporary buffer
lodsb
stosb
test al, al
jnz @b
pop esi
mov edi, ebx
@@: ; copy first part of name to destination
lodsb
test al, al
jz @f
stosb
jmp @b
@@: ; restore second part of name from temporary buffer to destination
lea edx, [ebx+64] ; limit of destination
mov esi, esp
@@:
cmp edi, edx
jae .overflow
lodsb
stosb
test al, al
jnz @b
add esp, 64 ; CF is cleared
ret
.overflow: ; name is too long
add esp, 64
stc
ret
endp
end if