mirror of
https://github.com/KolibriOS/kolibrios.git
synced 2024-12-02 05:26:56 +03:00
311 lines
6.3 KiB
PHP
311 lines
6.3 KiB
PHP
;============================================================================
|
|
;
|
|
; External kernel dependencies (libraries) loading
|
|
;
|
|
;============================================================================
|
|
|
|
$Revision$
|
|
|
|
|
|
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]
|
|
mov edi, 0
|
|
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
|
|
|
|
uglobal
|
|
s_libname db 64 dup (0)
|
|
endg
|