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/programs/fasm/trunk/formats.inc
0,0 → 1,3802
; flat assembler core
; Copyright (c) 1999-2005, Tomasz Grysztar.
; All rights reserved.
formatter:
cmp [output_file],0
jne output_path_ok
push edi
mov esi,[input_file]
mov edi,[free_additional_memory]
copy_output_path:
lods byte [esi]
cmp edi,[structures_buffer]
jae out_of_memory
stos byte [edi]
or al,al
jnz copy_output_path
dec edi
mov eax,edi
find_extension:
dec eax
cmp eax,[free_additional_memory]
jb extension_found
cmp byte [eax],'\'
je extension_found
cmp byte [eax],'/'
je extension_found
cmp byte [eax],'.'
jne find_extension
mov edi,eax
extension_found:
lea eax,[edi+9]
cmp eax,[structures_buffer]
jae out_of_memory
cmp [output_format],2
je exe_extension
jb bin_extension
cmp [output_format],4
je obj_extension
cmp [output_format],5
je o_extension
cmp [output_format],3
jne no_extension
cmp [subsystem],1
je sys_extension
bt [format_flags],8
jnc exe_extension
mov eax,'.dll'
jmp make_extension
sys_extension:
mov eax,'.sys'
jmp make_extension
bin_extension:
mov eax,'.bin'
bt [format_flags],0
jnc make_extension
mov eax,'.com'
jmp make_extension
obj_extension:
mov eax,'.obj'
jmp make_extension
o_extension:
mov eax,'.o'
bt [format_flags],0
jnc make_extension
no_extension:
xor eax,eax
jmp make_extension
exe_extension:
mov eax,'.exe'
make_extension:
xchg eax,[edi]
scas dword [edi]
mov byte [edi],0
scas byte [edi]
mov esi,edi
stos dword [edi]
sub edi,9
xor eax,eax
mov ebx,characters
adapt_case:
mov al,[esi]
or al,al
jz adapt_next
xlat byte [ebx]
cmp al,[esi]
je adapt_ok
sub byte [edi],20h
adapt_ok:
inc esi
adapt_next:
inc edi
cmp byte [edi],0
jne adapt_case
mov esi,edi
lea ecx,[esi+1]
sub ecx,[free_additional_memory]
mov edi,[structures_buffer]
dec edi
std
rep movs byte [edi],[esi]
cld
inc edi
mov [structures_buffer],edi
mov [output_file],edi
pop edi
output_path_ok:
cmp [output_format],4
je coff_formatter
cmp [output_format],5
jne common_formatter
bt [format_flags],0
jnc elf_formatter
common_formatter:
mov eax,edi
sub eax,[code_start]
mov [real_code_size],eax
cmp edi,[undefined_data_end]
jne calculate_code_size
mov edi,[undefined_data_start]
calculate_code_size:
sub edi,[code_start]
mov [code_size],edi
mov [written_size],0
mov edx,[output_file]
call create
jc write_failed
cmp [output_format],3
jne stub_written
mov edx,[code_start]
mov ecx,[stub_size]
sub edx,ecx
add [written_size],ecx
call write
stub_written:
cmp [output_format],2
jne write_output
call write_mz_header
write_output:
call write_code
output_written:
call close
ret
write_code:
mov eax,[written_size]
mov [headers_size],eax
mov edx,[code_start]
mov ecx,[code_size]
add [written_size],ecx
call write
jc write_failed
ret
format_directive:
cmp edi,[code_start]
jne unexpected_instruction
cmp [virtual_data],0
jne unexpected_instruction
cmp [output_format],0
jne unexpected_instruction
lods byte [esi]
cmp al,17h
je format_prefix
cmp al,18h
jne invalid_argument
lods byte [esi]
select_format:
mov dl,al
shr al,4
mov [output_format],al
and edx,0Fh
or [format_flags],edx
cmp al,2
je format_mz
cmp al,3
je format_pe
cmp al,4
je format_coff
cmp al,5
je format_elf
jmp instruction_assembled
format_prefix:
lods byte [esi]
mov ah,al
lods byte [esi]
cmp al,18h
jne invalid_argument
lods byte [esi]
mov edx,eax
shr dl,4
shr dh,4
cmp dl,dh
jne invalid_argument
or al,ah
jmp select_format
entry_directive:
bts [format_flags],10h
jc setting_already_specified
mov al,[output_format]
cmp al,2
je mz_entry
cmp al,3
je pe_entry
cmp al,5
jne illegal_instruction
bt [format_flags],0
jc elf_entry
jmp illegal_instruction
stack_directive:
bts [format_flags],11h
jc setting_already_specified
mov al,[output_format]
cmp al,2
je mz_stack
cmp al,3
je pe_stack
jmp illegal_instruction
heap_directive:
bts [format_flags],12h
jc setting_already_specified
mov al,[output_format]
cmp al,2
je mz_heap
cmp al,3
je pe_heap
jmp illegal_instruction
section_directive:
cmp [virtual_data],0
jne illegal_instruction
mov al,[output_format]
cmp al,3
je pe_section
cmp al,4
je coff_section
cmp al,5
je elf_section
jmp illegal_instruction
public_directive:
mov al,[output_format]
cmp al,4
je public_allowed
cmp al,5
jne illegal_instruction
bt [format_flags],0
jc illegal_instruction
public_allowed:
lods byte [esi]
cmp al,2
jne invalid_argument
lods dword [esi]
cmp eax,0Fh
jb invalid_use_of_symbol
je reserved_word_used_as_symbol
mov dx,[current_pass]
mov [eax+18],dx
or byte [eax+8],8
inc esi
mov ebx,[free_additional_memory]
lea edx,[ebx+10h]
cmp edx,[structures_buffer]
jae out_of_memory
mov [free_additional_memory],edx
mov [ebx+8],eax
mov eax,[current_line]
mov [ebx+0Ch],eax
lods byte [esi]
cmp al,86h
jne invalid_argument
lods word [esi]
cmp ax,'('
jne invalid_argument
mov [ebx+4],esi
lods dword [esi]
lea esi,[esi+eax+1]
mov byte [ebx],80h
jmp instruction_assembled
extrn_directive:
mov al,[output_format]
cmp al,4
je extrn_allowed
cmp al,5
jne illegal_instruction
bt [format_flags],0
jc illegal_instruction
extrn_allowed:
lods word [esi]
cmp ax,'('
jne invalid_argument
mov ebx,esi
lods dword [esi]
lea esi,[esi+eax+1]
mov edx,[free_additional_memory]
lea eax,[edx+0Ch]
cmp eax,[structures_buffer]
jae out_of_memory
mov [free_additional_memory],eax
mov byte [edx],81h
mov [edx+4],ebx
lods byte [esi]
cmp al,86h
jne invalid_argument
lods byte [esi]
cmp al,2
jne invalid_argument
lods dword [esi]
cmp eax,0Fh
jb invalid_use_of_symbol
je reserved_word_used_as_symbol
inc esi
mov ebx,eax
xor ah,ah
lods byte [esi]
cmp al,':'
je get_extrn_size
dec esi
cmp al,11h
jne extrn_size_ok
get_extrn_size:
lods word [esi]
cmp al,11h
jne invalid_argument
extrn_size_ok:
mov [address_symbol],edx
movzx ecx,ah
mov [edx+8],ecx
xor eax,eax
xor edx,edx
xor ebp,ebp
mov ch,2
test [format_flags],8
jz make_free_label
mov ch,4
jmp make_free_label
mark_relocation:
cmp [value_type],0
je relocation_ok
cmp [virtual_data],0
jne relocation_ok
cmp [output_format],2
je mark_mz_relocation
cmp [output_format],3
je mark_pe_relocation
cmp [output_format],4
je mark_coff_relocation
cmp [output_format],5
je mark_elf_relocation
relocation_ok:
ret
close_pass:
mov al,[output_format]
cmp al,3
je close_pe
cmp al,4
je close_coff
cmp al,5
je close_elf
ret
format_mz:
mov edx,[additional_memory]
push edi
mov edi,edx
mov ecx,1Ch shr 2
xor eax,eax
rep stos dword [edi]
mov [free_additional_memory],edi
pop edi
mov word [edx+0Ch],0FFFFh
mov word [edx+10h],1000h
mov [code_type],16
jmp instruction_assembled
mark_mz_relocation:
push eax ebx
inc [number_of_relocations]
mov ebx,[free_additional_memory]
mov eax,edi
sub eax,[code_start]
mov [ebx],ax
shr eax,16
shl ax,12
mov [ebx+2],ax
cmp word [ebx],0FFFFh
jne mz_relocation_ok
inc word [ebx+2]
sub word [ebx],10h
mz_relocation_ok:
add ebx,4
cmp ebx,[structures_buffer]
jae out_of_memory
mov [free_additional_memory],ebx
pop ebx eax
ret
segment_directive:
cmp [output_format],2
jne illegal_instruction
cmp [virtual_data],0
jne illegal_instruction
lods byte [esi]
cmp al,2
jne invalid_argument
lods dword [esi]
cmp eax,0Fh
jb invalid_use_of_symbol
je reserved_word_used_as_symbol
inc esi
mov ebx,eax
mov eax,edi
sub eax,[code_start]
mov ecx,0Fh
add eax,0Fh
and eax,1111b
sub ecx,eax
mov edx,edi
xor al,al
rep stos byte [edi]
mov dword [org_origin],edi
mov dword [org_origin+4],0
mov [org_registers],0
mov [org_start],edi
mov eax,edx
call undefined_data
mov eax,edi
sub eax,[code_start]
shr eax,4
cmp eax,10000h
jae value_out_of_range
mov edx,eax
mov al,16
cmp byte [esi],13h
jne segment_type_ok
inc esi
lods byte [esi]
segment_type_ok:
mov [code_type],al
mov eax,edx
mov cx,0100h
xor edx,edx
xor ebp,ebp
mov [address_symbol],edx
jmp make_free_label
mz_entry:
lods byte [esi]
cmp al,'('
jne invalid_argument
call get_word_value
cmp [value_type],1
je initial_cs_ok
cmp [error_line],0
jne initial_cs_ok
mov eax,[current_line]
mov [error_line],eax
mov [error],invalid_address
initial_cs_ok:
mov edx,[additional_memory]
mov [edx+16h],ax
lods byte [esi]
cmp al,':'
jne invalid_argument
lods byte [esi]
cmp al,'('
jne invalid_argument
ja invalid_address
call get_word_value
cmp [value_type],0
jne invalid_use_of_symbol
mov edx,[additional_memory]
mov [edx+14h],ax
jmp instruction_assembled
mz_stack:
lods byte [esi]
cmp al,'('
jne invalid_argument
call get_word_value
cmp byte [esi],':'
je stack_pointer
cmp ax,10h
jb invalid_value
cmp [value_type],0
jne invalid_use_of_symbol
mov edx,[additional_memory]
mov [edx+10h],ax
jmp instruction_assembled
stack_pointer:
cmp [value_type],1
je initial_ss_ok
cmp [error_line],0
jne initial_ss_ok
mov eax,[current_line]
mov [error_line],eax
mov [error],invalid_address
initial_ss_ok:
mov edx,[additional_memory]
mov [edx+0Eh],ax
lods byte [esi]
cmp al,':'
jne invalid_argument
lods byte [esi]
cmp al,'('
jne invalid_argument
call get_word_value
cmp [value_type],0
jne invalid_use_of_symbol
mov edx,[additional_memory]
mov [edx+10h],ax
bts [format_flags],4
jmp instruction_assembled
mz_heap:
cmp [output_format],2
jne illegal_instruction
lods byte [esi]
call get_size_operator
cmp ah,1
je invalid_value
cmp ah,2
ja invalid_value
cmp al,'('
jne invalid_argument
call get_word_value
cmp [value_type],0
jne invalid_use_of_symbol
mov edx,[additional_memory]
mov [edx+0Ch],ax
jmp instruction_assembled
write_mz_header:
mov edx,[additional_memory]
bt [format_flags],4
jc mz_stack_ok
mov eax,[real_code_size]
dec eax
shr eax,4
inc eax
mov [edx+0Eh],ax
shl eax,4
movzx ecx,word [edx+10h]
add eax,ecx
mov [real_code_size],eax
mz_stack_ok:
mov edi,[free_additional_memory]
mov eax,[number_of_relocations]
shl eax,2
add eax,1Ch
sub edi,eax
xchg edi,[free_additional_memory]
mov ecx,0Fh
add eax,0Fh
and eax,1111b
sub ecx,eax
xor al,al
rep stos byte [edi]
sub edi,[free_additional_memory]
mov ecx,edi
shr edi,4
mov word [edx],'MZ' ; signature
mov [edx+8],di ; header size in paragraphs
mov eax,[number_of_relocations]
mov [edx+6],ax ; number of relocation entries
mov eax,[code_size]
add eax,ecx
mov esi,eax
shr esi,9
and eax,1FFh
inc si
or ax,ax
jnz mz_size_ok
mov ax,200h
dec si
mz_size_ok:
mov [edx+2],ax ; number of bytes in last page
mov [edx+4],si ; number of pages
mov eax,[real_code_size]
dec eax
shr eax,4
inc eax
mov esi,[code_size]
dec esi
shr esi,4
inc esi
sub eax,esi
mov [edx+0Ah],ax ; minimum memory in addition to code
add [edx+0Ch],ax ; maximum memory in addition to code
salc
mov ah,al
or [edx+0Ch],ax
mov word [edx+18h],1Ch ; offset of relocation table
add [written_size],ecx
call write
jc write_failed
ret
make_stub:
mov [stub_file],edx
or edx,edx
jnz stub_from_file
push esi
mov edx,edi
xor eax,eax
mov ecx,20h
rep stos dword [edi]
mov eax,40h+default_stub_end-default_stub
mov cx,100h+default_stub_end-default_stub
mov word [edx],'MZ'
mov word [edx+4],1
mov word [edx+2],ax
mov word [edx+8],4
mov word [edx+0Ah],10h
mov word [edx+0Ch],0FFFFh
mov word [edx+10h],cx
mov word [edx+3Ch],ax
mov word [edx+18h],40h
lea edi,[edx+40h]
mov esi,default_stub
mov ecx,default_stub_end-default_stub
rep movs byte [edi],[esi]
pop esi
jmp stub_ok
default_stub:
use16
push cs
pop ds
mov dx,stub_message-default_stub
mov ah,9
int 21h
mov ax,4C01h
int 21h
stub_message db 'This program cannot be run in DOS mode.',0Dh,0Ah,24h
rq 1
default_stub_end:
use32
stub_from_file:
push esi
mov esi,edx
call open_binary_file
mov edx,edi
mov ecx,1Ch
mov esi,edx
call read
jc binary_stub
cmp word [esi],'MZ'
jne binary_stub
add edi,1Ch
movzx ecx,word [esi+6]
dec ecx
sar ecx,3
inc ecx
shl ecx,2
add ecx,(40h-1Ch) shr 2
lea eax,[edi+ecx*4]
cmp edi,[display_buffer]
jae out_of_memory
xor eax,eax
rep stos dword [edi]
mov edx,40h
xchg dx,[esi+18h]
xor al,al
call lseek
movzx ecx,word [esi+6]
shl ecx,2
lea edx,[esi+40h]
call read
mov edx,edi
sub edx,esi
shr edx,4
xchg dx,[esi+8]
shl edx,4
xor al,al
call lseek
movzx ecx,word [esi+4]
dec ecx
shl ecx,9
movzx edx,word [esi+2]
add ecx,edx
mov edx,edi
sub ecx,eax
je read_stub_code
jb stub_code_ok
push ecx
dec ecx
shr ecx,3
inc ecx
shl ecx,1
lea eax,[edi+ecx*4]
cmp eax,[display_buffer]
jae out_of_memory
xor eax,eax
rep stos dword [edi]
pop ecx
read_stub_code:
call read
stub_code_ok:
call close
mov edx,edi
sub edx,esi
mov ax,dx
and ax,1FFh
mov [esi+2],ax
dec edx
shr edx,9
inc edx
mov [esi+4],dx
mov eax,edi
sub eax,esi
mov [esi+3Ch],eax
pop esi
stub_ok:
ret
binary_stub:
mov esi,edi
mov ecx,40h shr 2
xor eax,eax
rep stos dword [edi]
mov al,2
xor edx,edx
call lseek
push eax
xor al,al
xor edx,edx
call lseek
mov ecx,[esp]
add ecx,40h+111b
and ecx,not 111b
mov ax,cx
and ax,1FFh
mov [esi+2],ax
lea eax,[ecx+1FFh]
and eax,not 1FFh
mov [esi+4],ax
mov [esi+3Ch],ecx
sub ecx,40h
mov eax,10000h
sub eax,ecx
jbe binary_heap_ok
shr eax,4
mov [esi+0Ah],ax
binary_heap_ok:
mov word [esi],'MZ'
mov word [esi+8],4
mov ax,0FFFFh
mov [esi+0Ch],ax
dec ax
mov [esi+10h],ax
sub ax,0Eh
mov [esi+0Eh],ax
mov [esi+16h],ax
mov word [esi+14h],100h
mov word [esi+18h],40h
mov eax,[display_buffer]
sub eax,ecx
cmp edi,eax
jae out_of_memory
mov edx,edi
shr ecx,2
xor eax,eax
rep stos dword [edi]
pop ecx
call read
call close
pop esi
ret
format_pe:
xor edx,edx
mov [machine],14Ch
mov [subsystem],3
mov [subsystem_version],3 + 10 shl 16
mov [image_base],400000h
test [format_flags],8
jz pe_settings
mov [machine],8664h
mov [subsystem_version],5 + 0 shl 16
mov [image_base_high],0
pe_settings:
cmp byte [esi],84h
je get_stub_name
cmp byte [esi],80h
je get_pe_base
cmp byte [esi],1Bh
jne pe_settings_ok
lods byte [esi]
lods byte [esi]
test al,80h+40h
jz subsystem_setting
cmp al,80h
je dll_flag
cmp al,81h
je wdm_flag
jmp pe_settings
dll_flag:
bts [format_flags],8
jc setting_already_specified
jmp pe_settings
wdm_flag:
bts [format_flags],9
jc setting_already_specified
jmp pe_settings
subsystem_setting:
bts [format_flags],7
jc setting_already_specified
and ax,3Fh
mov [subsystem],ax
cmp byte [esi],'('
jne pe_settings
inc esi
cmp byte [esi],'.'
jne invalid_value
inc esi
push edx
cmp byte [esi+11],0
jne invalid_value
cmp byte [esi+10],2
ja invalid_value
mov dx,[esi+8]
cmp dx,8000h
je zero_version
mov eax,[esi+4]
cmp dx,7
jg invalid_value
mov cx,7
sub cx,dx
mov eax,[esi+4]
shr eax,cl
mov ebx,eax
shr ebx,24
cmp bl,100
jae invalid_value
and eax,0FFFFFFh
mov ecx,100
mul ecx
shrd eax,edx,24
jnc version_value_ok
inc eax
version_value_ok:
shl eax,16
mov ax,bx
jmp subsystem_version_ok
zero_version:
xor eax,eax
subsystem_version_ok:
pop edx
add esi,13
mov [subsystem_version],eax
jmp pe_settings
get_pe_base:
bts [format_flags],10
jc setting_already_specified
lods word [esi]
cmp ah,'('
jne invalid_argument
cmp byte [esi],'.'
je invalid_value
push edx edi
add edi,[stub_size]
test [format_flags],8
jnz get_pe64_base
call get_dword_value
mov [image_base],eax
jmp pe_base_ok
get_pe64_base:
call get_qword_value
mov [image_base],eax
mov [image_base_high],edx
pe_base_ok:
pop edi edx
cmp [value_type],0
jne invalid_use_of_symbol
cmp byte [esi],84h
jne pe_settings_ok
get_stub_name:
lods byte [esi]
lods word [esi]
cmp ax,'('
jne invalid_argument
lods dword [esi]
mov edx,esi
add esi,eax
inc esi
pe_settings_ok:
mov ebp,[stub_size]
or ebp,ebp
jz make_pe_stub
cmp edx,[stub_file]
je pe_stub_ok
sub edi,[stub_size]
mov [code_start],edi
make_pe_stub:
call make_stub
mov eax,edi
sub eax,[code_start]
mov [stub_size],eax
mov [code_start],edi
mov ebp,eax
pe_stub_ok:
mov edx,edi
mov ecx,18h+0E0h
test [format_flags],8
jz zero_pe_header
add ecx,10h
zero_pe_header:
add ebp,ecx
shr ecx,2
xor eax,eax
rep stos dword [edi]
mov word [edx],'PE' ; signature
mov ax,[machine]
mov word [edx+4],ax
mov dword [edx+38h],1000h ; section alignment
mov dword [edx+3Ch],200h ; file alignment
mov word [edx+40h],1 ; OS version
mov eax,[subsystem_version]
mov [edx+48h],eax
mov ax,[subsystem]
mov [edx+5Ch],ax
cmp ax,1
jne pe_alignment_ok
mov eax,20h
mov dword [edx+38h],eax
mov dword [edx+3Ch],eax
pe_alignment_ok:
mov word [edx+1Ah],VERSION_MAJOR + VERSION_MINOR shl 8
test [format_flags],8
jnz init_pe64_specific
mov dword [edx+14h],0E0h ; size of optional header
mov dword [edx+16h],10B010Eh; flags and magic value
mov eax,[image_base]
mov dword [edx+34h],eax
mov dword [edx+60h],1000h ; stack reserve
mov dword [edx+64h],1000h ; stack commit
mov dword [edx+68h],10000h ; heap reserve
mov dword [edx+6Ch],0 ; heap commit
mov dword [edx+74h],16 ; number of directories
jmp pe_header_ok
init_pe64_specific:
mov dword [edx+14h],0F0h ; size of optional header
mov dword [edx+16h],20B002Eh; flags and magic value
mov eax,[image_base]
mov dword [edx+30h],eax
mov eax,[image_base_high]
mov dword [edx+34h],eax
mov dword [edx+60h],1000h ; stack reserve
mov dword [edx+68h],1000h ; stack commit
mov dword [edx+70h],10000h ; heap reserve
mov dword [edx+78h],0 ; heap commit
mov dword [edx+84h],16 ; number of directories
pe_header_ok:
bsf ecx,[edx+3Ch]
imul ebx,[number_of_sections],28h
or ebx,ebx
jnz reserve_space_for_section_headers
mov ebx,28h
reserve_space_for_section_headers:
add ebx,ebp
dec ebx
shr ebx,cl
inc ebx
shl ebx,cl
sub ebx,ebp
mov ecx,ebx
mov eax,[display_buffer]
sub eax,ecx
cmp edi,eax
jae out_of_memory
shr ecx,2
xor eax,eax
rep stos dword [edi]
mov eax,edi
sub eax,[code_start]
add eax,[stub_size]
mov [edx+54h],eax ; size of headers
mov ecx,[edx+38h]
dec ecx
add eax,ecx
not ecx
and eax,ecx
bt [format_flags],8
jc pe_entry_init_ok
mov [edx+28h],eax ; entry point rva
pe_entry_init_ok:
mov [number_of_sections],0
movzx ebx,word [edx+14h]
lea ebx,[edx+18h+ebx]
mov [current_section],ebx
mov dword [ebx],'.fla'
mov dword [ebx+4],'t'
mov [ebx+14h],edi
mov [ebx+0Ch],eax
mov dword [ebx+24h],0E0000060h
xor ecx,ecx
not eax
not ecx
add eax,1
adc ecx,0
add eax,edi
adc ecx,0
test [format_flags],8
jnz pe64_org
sub eax,[edx+34h]
sbb ecx,0
mov [labels_type],2
mov [code_type],32
jmp pe_org_ok
pe64_org:
sub eax,[edx+30h]
sbb ecx,[edx+34h]
mov [labels_type],4
mov [code_type],64
pe_org_ok:
mov dword [org_origin],eax
mov dword [org_origin+4],ecx
mov [org_registers],0
mov [org_start],edi
bt [format_flags],8
jnc dll_flag_ok
or dword [edx+16h],2000h
dll_flag_ok:
bt [format_flags],9
jnc wdm_flag_ok
or word [edx+5Eh],2000h
wdm_flag_ok:
jmp instruction_assembled
pe_section:
call close_pe_section
bts [format_flags],5
lea ecx,[ebx+28h]
add edx,[edx+54h]
sub edx,[stub_size]
cmp ecx,edx
jbe new_section
lea ebx,[edx-28h]
or [next_pass_needed],-1
push edi
mov edi,ebx
mov ecx,28h shr 4
xor eax,eax
rep stos dword [edi]
pop edi
new_section:
mov [ebx+0Ch],eax
lods word [esi]
cmp ax,'('
jne invalid_argument
lea edx,[esi+4]
mov ecx,[esi]
lea esi,[esi+4+ecx+1]
cmp ecx,8
ja name_too_long
xor eax,eax
mov [ebx],eax
mov [ebx+4],eax
push esi edi
mov edi,ebx
mov esi,edx
rep movs byte [edi],[esi]
pop edi esi
mov dword [ebx+24h],0
mov [ebx+14h],edi
mov edx,[code_start]
mov eax,edi
xor ecx,ecx
sub eax,[ebx+0Ch]
sbb ecx,0
test [format_flags],8
jnz pe64_section_org
sub eax,[edx+34h]
sbb ecx,0
mov [labels_type],2
mov [code_type],32
jmp pe_section_org_ok
pe64_section_org:
sub eax,[edx+30h]
sbb ecx,[edx+34h]
mov [labels_type],4
mov [code_type],64
pe_section_org_ok:
mov dword [org_origin],eax
mov dword [org_origin+4],ecx
mov [org_registers],0
mov [org_start],edi
get_section_flags:
lods byte [esi]
cmp al,1Ah
je set_directory
cmp al,19h
je section_flag
dec esi
jmp instruction_assembled
set_directory:
movzx eax,byte [esi]
inc esi
mov ecx,ebx
test [format_flags],8
jnz pe64_directory
xchg ecx,[edx+78h+eax*8]
mov dword [edx+78h+eax*8+4],-1
jmp pe_directory_set
pe64_directory:
xchg ecx,[edx+88h+eax*8]
mov dword [edx+88h+eax*8+4],-1
pe_directory_set:
or ecx,ecx
jnz data_already_defined
push ebx edx
call generate_pe_data
pop edx ebx
jmp get_section_flags
section_flag:
lods byte [esi]
mov cl,al
mov eax,1
shl eax,cl
test dword [ebx+24h],eax
jnz setting_already_specified
or dword [ebx+24h],eax
jmp get_section_flags
close_pe_section:
mov ebx,[current_section]
mov edx,[code_start]
mov eax,edi
sub eax,[ebx+14h]
jnz finish_section
bt [format_flags],5
jc finish_section
mov eax,[ebx+0Ch]
ret
finish_section:
mov [ebx+8],eax
cmp edi,[undefined_data_end]
jne align_section
cmp dword [edx+38h],1000h
jb align_section
mov edi,[undefined_data_start]
align_section:
mov [undefined_data_end],0
mov ebp,edi
sub ebp,[ebx+14h]
mov ecx,[edx+3Ch]
dec ecx
lea eax,[ebp+ecx]
not ecx
and eax,ecx
mov [ebx+10h],eax
sub eax,ebp
mov ecx,eax
xor al,al
rep stos byte [edi]
mov eax,[code_start]
sub eax,[stub_size]
sub [ebx+14h],eax
mov eax,[ebx+8]
or eax,eax
jz udata_ok
cmp dword [ebx+10h],0
jne udata_ok
or byte [ebx+24h],80h
udata_ok:
mov ecx,[edx+38h]
dec ecx
add eax,ecx
not ecx
and eax,ecx
add eax,[ebx+0Ch]
add ebx,28h
mov [current_section],ebx
inc word [number_of_sections]
jz format_limitations_exceeded
ret
data_directive:
cmp [output_format],3
jne illegal_instruction
lods byte [esi]
cmp al,1Ah
je predefined_data_type
cmp al,'('
jne invalid_argument
call get_byte_value
cmp al,16
jb data_type_ok
jmp invalid_value
predefined_data_type:
movzx eax,byte [esi]
inc esi
data_type_ok:
mov ebx,[current_section]
mov ecx,edi
sub ecx,[ebx+14h]
add ecx,[ebx+0Ch]
mov edx,[code_start]
test [format_flags],8
jnz pe64_data
xchg ecx,[edx+78h+eax*8]
jmp init_pe_data
pe64_data:
xchg ecx,[edx+88h+eax*8]
init_pe_data:
or ecx,ecx
jnz data_already_defined
call allocate_structure_data
mov word [ebx],data_directive-assembler
mov [ebx+2],al
mov edx,[current_line]
mov [ebx+4],edx
call generate_pe_data
jmp instruction_assembled
end_data:
cmp [output_format],3
jne illegal_instruction
call find_structure_data
jc unexpected_instruction
movzx eax,byte [ebx+2]
mov edx,[current_section]
mov ecx,edi
sub ecx,[edx+14h]
add ecx,[edx+0Ch]
mov edx,[code_start]
test [format_flags],8
jnz end_pe64_data
sub ecx,[edx+78h+eax*8]
mov [edx+78h+eax*8+4],ecx
jmp remove_structure_data
end_pe64_data:
sub ecx,[edx+88h+eax*8]
mov [edx+88h+eax*8+4],ecx
jmp remove_structure_data
pe_entry:
lods byte [esi]
cmp al,'('
jne invalid_argument
cmp byte [esi],'.'
je invalid_value
test [format_flags],8
jnz pe64_entry
call get_dword_value
cmp [value_type],2
je pe_entry_ok
cmp [error_line],0
jne pe_entry_ok
mov eax,[current_line]
mov [error_line],eax
mov [error],invalid_address
pe_entry_ok:
mov edx,[code_start]
sub eax,[edx+34h]
mov [edx+28h],eax
jmp instruction_assembled
pe64_entry:
call get_qword_value
cmp [value_type],4
je pe64_entry_ok
cmp [error_line],0
jne pe64_entry_ok
mov eax,[current_line]
mov [error_line],eax
mov [error],invalid_address
pe64_entry_ok:
mov ecx,[code_start]
sub eax,[ecx+30h]
sbb edx,[ecx+34h]
jnz value_out_of_range
mov [ecx+28h],eax
jmp instruction_assembled
pe_stack:
lods byte [esi]
cmp al,'('
jne invalid_argument
cmp byte [esi],'.'
je invalid_value
test [format_flags],8
jnz pe64_stack
call get_dword_value
cmp [value_type],0
jne invalid_use_of_symbol
mov edx,[code_start]
mov [edx+60h],eax
cmp byte [esi],','
jne default_stack_commit
lods byte [esi]
lods byte [esi]
cmp al,'('
jne invalid_argument
cmp byte [esi],'.'
je invalid_value
call get_dword_value
cmp [value_type],0
jne invalid_use_of_symbol
mov edx,[code_start]
mov [edx+64h],eax
cmp eax,[edx+60h]
ja value_out_of_range
jmp instruction_assembled
default_stack_commit:
mov dword [edx+64h],1000h
mov eax,[edx+60h]
cmp eax,1000h
ja instruction_assembled
mov dword [edx+64h],eax
jmp instruction_assembled
pe64_stack:
call get_qword_value
cmp [value_type],0
jne invalid_use_of_symbol
mov ecx,[code_start]
mov [ecx+60h],eax
mov [ecx+64h],edx
cmp byte [esi],','
jne default_pe64_stack_commit
lods byte [esi]
lods byte [esi]
cmp al,'('
jne invalid_argument
cmp byte [esi],'.'
je invalid_value
call get_qword_value
cmp [value_type],0
jne invalid_use_of_symbol
mov ecx,[code_start]
mov [ecx+68h],eax
mov [ecx+6Ch],edx
cmp edx,[ecx+64h]
ja value_out_of_range
jb instruction_assembled
cmp eax,[edx+60h]
ja value_out_of_range
jmp instruction_assembled
default_pe64_stack_commit:
mov dword [edx+68h],1000h
cmp dword [edx+64h],0
jne instruction_assembled
mov eax,[edx+60h]
cmp eax,1000h
ja instruction_assembled
mov dword [edx+68h],eax
jmp instruction_assembled
pe_heap:
lods byte [esi]
cmp al,'('
jne invalid_argument
cmp byte [esi],'.'
je invalid_value
test [format_flags],8
jnz pe64_heap
call get_dword_value
cmp [value_type],0
jne invalid_use_of_symbol
mov edx,[code_start]
mov [edx+68h],eax
cmp byte [esi],','
jne instruction_assembled
lods byte [esi]
lods byte [esi]
cmp al,'('
jne invalid_argument
cmp byte [esi],'.'
je invalid_value
call get_dword_value
cmp [value_type],0
jne invalid_use_of_symbol
mov edx,[code_start]
mov [edx+6Ch],eax
cmp eax,[edx+68h]
ja value_out_of_range
jmp instruction_assembled
pe64_heap:
call get_qword_value
cmp [value_type],0
jne invalid_use_of_symbol
mov ecx,[code_start]
mov [ecx+70h],eax
mov [ecx+74h],edx
cmp byte [esi],','
jne instruction_assembled
lods byte [esi]
lods byte [esi]
cmp al,'('
jne invalid_argument
cmp byte [esi],'.'
je invalid_value
call get_qword_value
cmp [value_type],0
jne invalid_use_of_symbol
mov ecx,[code_start]
mov [ecx+78h],eax
mov [ecx+7Ch],edx
cmp edx,[ecx+74h]
ja value_out_of_range
jb instruction_assembled
cmp eax,[edx+70h]
ja value_out_of_range
jmp instruction_assembled
mark_pe_relocation:
push eax ebx
mov ebx,[current_section]
mov eax,edi
sub eax,[ebx+14h]
add eax,[ebx+0Ch]
mov ebx,[free_additional_memory]
inc [number_of_relocations]
jz invalid_use_of_symbol
mov [ebx],eax
add ebx,4
cmp ebx,[structures_buffer]
jae out_of_memory
mov [free_additional_memory],ebx
pop ebx eax
ret
generate_pe_data:
cmp al,2
je make_pe_resource
cmp al,5
je make_pe_fixups
ret
make_pe_resource:
cmp byte [esi],82h
jne resource_done
inc esi
lods word [esi]
cmp ax,'('
jne invalid_argument
lods dword [esi]
mov edx,esi
lea esi,[esi+eax+1]
cmp [next_pass_needed],0
je resource_from_file
cmp [current_pass],0
jne reserve_space_for_resource
mov [resource_size],0
reserve_space_for_resource:
add edi,[resource_size]
cmp edi,[display_buffer]
ja out_of_memory
jmp resource_done
resource_from_file:
push esi
mov esi,edx
call open_binary_file
push ebx
mov esi,[free_additional_memory]
lea eax,[esi+20h]
cmp eax,[structures_buffer]
ja out_of_memory
mov edx,esi
mov ecx,20h
call read
jc invalid_file_format
xor eax,eax
cmp [esi],eax
jne invalid_file_format
mov ax,0FFFFh
cmp [esi+8],eax
jne invalid_file_format
cmp [esi+12],eax
jne invalid_file_format
mov eax,20h
cmp [esi+4],eax
jne invalid_file_format
read_resource_headers:
test eax,11b
jz resource_file_alignment_ok
mov edx,4
and eax,11b
sub edx,eax
mov al,1
call lseek
resource_file_alignment_ok:
mov [esi],eax
lea edx,[esi+12]
mov ecx,8
call read
jc resource_headers_ok
mov ecx,[esi+16]
add [esi],ecx
lea edx,[esi+20]
sub ecx,8
mov [esi+16],ecx
lea eax,[edx+ecx]
cmp eax,[structures_buffer]
ja out_of_memory
call read
jc invalid_file_format
mov edx,[esi]
add edx,[esi+12]
mov eax,[esi+16]
lea ecx,[esi+20]
lea esi,[ecx+eax]
add ecx,2
cmp word [ecx-2],0FFFFh
je resource_header_type_ok
check_resource_header_type:
cmp ecx,esi
jae invalid_file_format
cmp word [ecx],0
je resource_header_type_ok
add ecx,2
jmp check_resource_header_type
resource_header_type_ok:
add ecx,2
cmp word [ecx],0FFFFh
je resource_header_name_ok
check_resource_header_name:
cmp ecx,esi
jae invalid_file_format
cmp word [ecx],0
je resource_header_name_ok
add ecx,2
jmp check_resource_header_name
resource_header_name_ok:
xor al,al
call lseek
jmp read_resource_headers
resource_headers_ok:
xor eax,eax
mov [esi],eax
mov [resource_data],edi
lea eax,[edi+16]
cmp eax,[display_buffer]
jae out_of_memory
xor eax,eax
stos dword [edi]
call make_timestamp
stos dword [edi]
xor eax,eax
stos dword [edi]
stos dword [edi]
xor ebx,ebx
make_type_name_directory:
mov esi,[free_additional_memory]
xor edx,edx
find_type_name:
cmp dword [esi],0
je type_name_ok
add esi,20
cmp word [esi],0FFFFh
je check_next_type_name
or ebx,ebx
jz check_this_type_name
xor ecx,ecx
compare_with_previous_type_name:
mov ax,[esi+ecx]
cmp ax,[ebx+ecx]
ja check_this_type_name
jb check_next_type_name
add ecx,2
mov ax,[esi+ecx]
or ax,[ebx+ecx]
jnz compare_with_previous_type_name
jmp check_next_type_name
check_this_type_name:
or edx,edx
jz type_name_found
xor ecx,ecx
compare_with_current_type_name:
mov ax,[esi+ecx]
cmp ax,[edx+ecx]
ja check_next_type_name
jb type_name_found
add ecx,2
mov ax,[esi+ecx]
or ax,[edx+ecx]
jnz compare_with_current_type_name
jmp same_type_name
type_name_found:
mov edx,esi
same_type_name:
mov [esi-16],edi
check_next_type_name:
mov eax,[esi-4]
add esi,eax
jmp find_type_name
type_name_ok:
or edx,edx
jz type_name_directory_done
mov ebx,edx
make_type_name_entry:
mov eax,[resource_data]
inc word [eax+12]
lea eax,[edi+8]
cmp eax,[display_buffer]
jae out_of_memory
mov eax,ebx
stos dword [edi]
xor eax,eax
stos dword [edi]
jmp make_type_name_directory
type_name_directory_done:
mov ebx,-1
make_type_id_directory:
mov esi,[free_additional_memory]
mov edx,10000h
find_type_id:
cmp dword [esi],0
je type_id_ok
add esi,20
cmp word [esi],0FFFFh
jne check_next_type_id
movzx eax,word [esi+2]
cmp eax,ebx
jle check_next_type_id
cmp eax,edx
jg check_next_type_id
mov edx,eax
mov [esi-16],edi
check_next_type_id:
mov eax,[esi-4]
add esi,eax
jmp find_type_id
type_id_ok:
cmp edx,10000h
je type_id_directory_done
mov ebx,edx
make_type_id_entry:
mov eax,[resource_data]
inc word [eax+14]
lea eax,[edi+8]
cmp eax,[display_buffer]
jae out_of_memory
mov eax,ebx
stos dword [edi]
xor eax,eax
stos dword [edi]
jmp make_type_id_directory
type_id_directory_done:
mov esi,[resource_data]
add esi,10h
mov ecx,[esi-4]
or cx,cx
jz resource_directories_ok
make_resource_directories:
push ecx
push edi
mov edx,edi
sub edx,[resource_data]
bts edx,31
mov [esi+4],edx
lea eax,[edi+16]
cmp eax,[display_buffer]
jae out_of_memory
xor eax,eax
stos dword [edi]
call make_timestamp
stos dword [edi]
xor eax,eax
stos dword [edi]
stos dword [edi]
mov ebp,esi
xor ebx,ebx
make_resource_name_directory:
mov esi,[free_additional_memory]
xor edx,edx
find_resource_name:
cmp dword [esi],0
je resource_name_ok
push esi
cmp [esi+4],ebp
jne check_next_resource_name
add esi,20
call skip_resource_name
cmp word [esi],0FFFFh
je check_next_resource_name
or ebx,ebx
jz check_this_resource_name
xor ecx,ecx
compare_with_previous_resource_name:
mov ax,[esi+ecx]
cmp ax,[ebx+ecx]
ja check_this_resource_name
jb check_next_resource_name
add ecx,2
mov ax,[esi+ecx]
or ax,[ebx+ecx]
jnz compare_with_previous_resource_name
jmp check_next_resource_name
skip_resource_name:
cmp word [esi],0FFFFh
jne skip_unicode_string
add esi,4
ret
skip_unicode_string:
add esi,2
cmp word [esi-2],0
jne skip_unicode_string
ret
check_this_resource_name:
or edx,edx
jz resource_name_found
xor ecx,ecx
compare_with_current_resource_name:
mov ax,[esi+ecx]
cmp ax,[edx+ecx]
ja check_next_resource_name
jb resource_name_found
add ecx,2
mov ax,[esi+ecx]
or ax,[edx+ecx]
jnz compare_with_current_resource_name
jmp same_resource_name
resource_name_found:
mov edx,esi
same_resource_name:
mov eax,[esp]
mov [eax+8],edi
check_next_resource_name:
pop esi
mov eax,[esi+16]
lea esi,[esi+20+eax]
jmp find_resource_name
resource_name_ok:
or edx,edx
jz resource_name_directory_done
mov ebx,edx
make_resource_name_entry:
mov eax,[esp]
inc word [eax+12]
lea eax,[edi+8]
cmp eax,[display_buffer]
jae out_of_memory
mov eax,ebx
stos dword [edi]
xor eax,eax
stos dword [edi]
jmp make_resource_name_directory
resource_name_directory_done:
mov ebx,-1
make_resource_id_directory:
mov esi,[free_additional_memory]
mov edx,10000h
find_resource_id:
cmp dword [esi],0
je resource_id_ok
push esi
cmp [esi+4],ebp
jne check_next_resource_id
add esi,20
call skip_resource_name
cmp word [esi],0FFFFh
jne check_next_resource_id
movzx eax,word [esi+2]
cmp eax,ebx
jle check_next_resource_id
cmp eax,edx
jg check_next_resource_id
mov edx,eax
mov eax,[esp]
mov [eax+8],edi
check_next_resource_id:
pop esi
mov eax,[esi+16]
lea esi,[esi+20+eax]
jmp find_resource_id
resource_id_ok:
cmp edx,10000h
je resource_id_directory_done
mov ebx,edx
make_resource_id_entry:
mov eax,[esp]
inc word [eax+14]
lea eax,[edi+8]
cmp eax,[display_buffer]
jae out_of_memory
mov eax,ebx
stos dword [edi]
xor eax,eax
stos dword [edi]
jmp make_resource_id_directory
resource_id_directory_done:
pop eax
mov esi,ebp
pop ecx
add esi,8
dec cx
jnz make_resource_directories
resource_directories_ok:
shr ecx,16
jnz make_resource_directories
mov esi,[resource_data]
add esi,10h
movzx eax,word [esi-4]
movzx edx,word [esi-2]
add eax,edx
lea esi,[esi+eax*8]
push edi ; address of language directories
update_resource_directories:
cmp esi,[esp]
je resource_directories_updated
add esi,10h
mov ecx,[esi-4]
or cx,cx
jz language_directories_ok
make_language_directories:
push ecx
push edi
mov edx,edi
sub edx,[resource_data]
bts edx,31
mov [esi+4],edx
lea eax,[edi+16]
cmp eax,[display_buffer]
jae out_of_memory
xor eax,eax
stos dword [edi]
call make_timestamp
stos dword [edi]
xor eax,eax
stos dword [edi]
stos dword [edi]
mov ebp,esi
mov ebx,-1
make_language_id_directory:
mov esi,[free_additional_memory]
mov edx,10000h
find_language_id:
cmp dword [esi],0
je language_id_ok
push esi
cmp [esi+8],ebp
jne check_next_language_id
add esi,20
mov eax,esi
call skip_resource_name
call skip_resource_name
neg eax
add eax,esi
and eax,11b
add esi,eax
get_language_id:
movzx eax,word [esi+6]
cmp eax,ebx
jle check_next_language_id
cmp eax,edx
jge check_next_language_id
mov edx,eax
mov eax,[esp]
mov [current_offset],eax
check_next_language_id:
pop esi
mov eax,[esi+16]
lea esi,[esi+20+eax]
jmp find_language_id
language_id_ok:
cmp edx,10000h
je language_id_directory_done
mov ebx,edx
make_language_id_entry:
mov eax,[esp]
inc word [eax+14]
lea eax,[edi+8]
cmp eax,[display_buffer]
jae out_of_memory
mov eax,ebx
stos dword [edi]
mov eax,[current_offset]
stos dword [edi]
jmp make_language_id_directory
language_id_directory_done:
pop eax
mov esi,ebp
pop ecx
add esi,8
dec cx
jnz make_language_directories
language_directories_ok:
shr ecx,16
jnz make_language_directories
jmp update_resource_directories
resource_directories_updated:
mov esi,[resource_data]
push edi
make_name_strings:
add esi,10h
movzx eax,word [esi-2]
movzx ecx,word [esi-4]
add eax,ecx
lea eax,[esi+eax*8]
push eax
or ecx,ecx
jz string_entries_processed
process_string_entries:
push ecx
mov edx,edi
sub edx,[resource_data]
bts edx,31
xchg [esi],edx
mov ebx,edi
xor ax,ax
stos word [edi]
copy_string_data:
lea eax,[edi+2]
cmp eax,[display_buffer]
jae out_of_memory
mov ax,[edx]
or ax,ax
jz string_data_copied
stos word [edi]
inc word [ebx]
add edx,2
jmp copy_string_data
string_data_copied:
add esi,8
pop ecx
loop process_string_entries
string_entries_processed:
pop esi
cmp esi,[esp]
jb make_name_strings
mov eax,edi
sub eax,[resource_data]
test al,11b
jz resource_strings_alignment_ok
xor ax,ax
stos word [edi]
resource_strings_alignment_ok:
pop edx
pop ebx ; address of language directories
mov ebp,edi
update_language_directories:
add ebx,10h
movzx eax,word [ebx-2]
movzx ecx,word [ebx-4]
add ecx,eax
make_data_records:
push ecx
mov esi,edi
sub esi,[resource_data]
xchg esi,[ebx+4]
lea eax,[edi+16]
cmp eax,[display_buffer]
jae out_of_memory
mov eax,esi
stos dword [edi]
mov eax,[esi+12]
stos dword [edi]
xor eax,eax
stos dword [edi]
stos dword [edi]
pop ecx
add ebx,8
loop make_data_records
cmp ebx,edx
jb update_language_directories
pop ebx ; file handle
mov esi,ebp
mov ebp,edi
update_data_records:
push ebp
mov ecx,edi
mov eax,[current_section]
sub ecx,[eax+14h]
add ecx,[eax+0Ch]
xchg ecx,[esi]
mov edx,[ecx]
xor al,al
call lseek
mov edx,edi
mov ecx,[esi+4]
add edi,ecx
cmp edi,[display_buffer]
ja out_of_memory
call read
mov eax,edi
sub eax,[resource_data]
and eax,11b
jz resource_data_alignment_ok
mov ecx,4
sub ecx,eax
xor al,al
rep stos byte [edi]
resource_data_alignment_ok:
pop ebp
add esi,16
cmp esi,ebp
jb update_data_records
pop esi
call close
mov eax,edi
sub eax,[resource_data]
mov [resource_size],eax
resource_done:
ret
make_pe_fixups:
push esi
mov ecx,[number_of_relocations]
jecxz fixups_done
mov esi,[free_additional_memory]
mov eax,ecx
shl eax,2
sub esi,eax
mov [free_additional_memory],esi
or [number_of_relocations],-1
xor edx,edx
mov ebp,edi
make_fixups:
cmp [esi],edx
jb store_fixup
mov eax,edi
sub eax,ebp
test eax,11b
jz fixups_block
xor ax,ax
stos word [edi]
add dword [ebx],2
fixups_block:
mov eax,edx
add edx,1000h
cmp [esi],edx
jae fixups_block
stos dword [edi]
mov ebx,edi
mov eax,8
stos dword [edi]
store_fixup:
add dword [ebx],2
mov eax,[esi]
and ax,0FFFh
test [format_flags],8
jnz fixup_64bit
or ax,3000h
jmp fixup_ok
fixup_64bit:
or ax,0A000h
fixup_ok:
stos word [edi]
add esi,4
loop make_fixups
fixups_done:
pop esi
ret
close_pe:
call close_pe_section
mov edx,[code_start]
mov [edx+50h],eax
call make_timestamp
mov edx,[code_start]
mov [edx+8],eax
mov eax,[number_of_relocations]
cmp eax,0
jle pe_flags_ok
or word [edx+16h],1
shl eax,2
sub [free_additional_memory],eax
pe_flags_ok:
mov eax,[number_of_sections]
mov [edx+6],ax
imul eax,28h
movzx ecx,word [edx+14h]
lea eax,[eax+18h+ecx]
add eax,[stub_size]
mov ecx,[edx+3Ch]
dec ecx
add eax,ecx
not ecx
and eax,ecx
cmp eax,[edx+54h]
je pe_sections_ok
or [next_pass_needed],-1
pe_sections_ok:
xor ecx,ecx
add edx,78h
test [format_flags],8
jz process_directories
add edx,10h
process_directories:
mov eax,[edx+ecx*8]
or eax,eax
jz directory_ok
cmp dword [edx+ecx*8+4],-1
jne directory_ok
section_data:
mov ebx,[edx+ecx*8]
mov eax,[ebx+0Ch]
mov [edx+ecx*8],eax ; directory rva
mov eax,[ebx+8]
mov [edx+ecx*8+4],eax ; directory size
directory_ok:
inc cl
cmp cl,10h
jb process_directories
mov ebx,[code_start]
sub ebx,[stub_size]
mov ecx,edi
sub ecx,ebx
mov ebp,ecx
shr ecx,1
xor eax,eax
cdq
calculate_checksum:
mov dx,[ebx]
add eax,edx
mov dx,ax
shr eax,16
add eax,edx
add ebx,2
loop calculate_checksum
add eax,ebp
mov ebx,[code_start]
mov [ebx+58h],eax
ret
format_coff:
mov eax,[additional_memory]
mov [symbols_stream],eax
mov ebx,eax
add eax,18h
cmp eax,[structures_buffer]
jae out_of_memory
mov [free_additional_memory],eax
xor eax,eax
mov [ebx],al
mov [ebx+4],eax
mov [ebx+8],edi
mov al,4
mov [ebx+10h],eax
mov al,60h
bt [format_flags],0
jnc flat_section_flags_ok
or eax,0E0000000h
flat_section_flags_ok:
mov dword [ebx+14h],eax
mov [current_section],ebx
mov [number_of_sections],0
mov dword [org_origin],edi
mov dword [org_origin+4],0
mov [org_registers],0
mov [org_start],edi
mov [org_symbol],ebx
mov [labels_type],2
mov [code_type],32
test [format_flags],8
jz instruction_assembled
mov [labels_type],4
mov [code_type],64
jmp instruction_assembled
coff_section:
call close_coff_section
mov ebx,[free_additional_memory]
lea eax,[ebx+18h]
cmp eax,[structures_buffer]
jae out_of_memory
mov [free_additional_memory],eax
mov [current_section],ebx
inc [number_of_sections]
xor eax,eax
mov [ebx],al
mov [ebx+8],edi
mov dword [org_origin],edi
mov dword [org_origin+4],0
mov [org_registers],0
mov [org_start],edi
mov [org_symbol],ebx
mov [labels_type],2
test [format_flags],8
jz coff_labels_type_ok
mov [labels_type],4
coff_labels_type_ok:
mov [ebx+10h],eax
mov [ebx+14h],eax
lods word [esi]
cmp ax,'('
jne invalid_argument
mov [ebx+4],esi
mov ecx,[esi]
lea esi,[esi+4+ecx+1]
cmp ecx,8
ja name_too_long
coff_section_flags:
cmp byte [esi],1Ch
je coff_section_alignment
cmp byte [esi],19h
jne coff_section_settings_ok
inc esi
lods byte [esi]
bt [format_flags],0
jc coff_section_flag_ok
cmp al,7
ja invalid_argument
coff_section_flag_ok:
mov cl,al
mov eax,1
shl eax,cl
test dword [ebx+14h],eax
jnz setting_already_specified
or dword [ebx+14h],eax
jmp coff_section_flags
coff_section_alignment:
bt [format_flags],0
jnc invalid_argument
inc esi
lods byte [esi]
or al,al
jnz invalid_argument
lods byte [esi]
cmp al,'('
jne invalid_argument
cmp byte [esi],'.'
je invalid_value
push ebx
call get_dword_value
pop ebx
cmp [value_type],0
jne invalid_use_of_symbol
mov edx,eax
dec edx
test eax,edx
jnz invalid_value
or eax,eax
jz invalid_value
cmp eax,2000h
ja invalid_value
bsf edx,eax
inc edx
shl edx,20
or [ebx+14h],edx
xchg [ebx+10h],eax
or eax,eax
jnz setting_already_specified
jmp coff_section_flags
coff_section_settings_ok:
cmp dword [ebx+10h],0
jne instruction_assembled
mov dword [ebx+10h],4
bt [format_flags],0
jnc instruction_assembled
or dword [ebx+14h],300000h
jmp instruction_assembled
close_coff_section:
mov ebx,[current_section]
mov eax,edi
mov edx,[ebx+8]
sub eax,edx
mov [ebx+0Ch],eax
xor eax,eax
xchg [undefined_data_end],eax
cmp eax,edi
jne coff_section_ok
cmp edx,[undefined_data_start]
jne coff_section_ok
mov edi,edx
or byte [ebx+14h],80h
coff_section_ok:
ret
mark_coff_relocation:
cmp [value_type],3
je coff_relocation_relative
push ebx eax
test [format_flags],8
jnz coff_64bit_relocation
mov al,6
jmp coff_relocation
coff_64bit_relocation:
mov al,1
jmp coff_relocation
coff_relocation_relative:
push ebx
bt [format_flags],0
jnc relative_ok
mov ebx,[current_section]
mov ebx,[ebx+8]
sub ebx,edi
sub eax,ebx
add eax,4
relative_ok:
push eax
mov al,20
test [format_flags],8
jnz relative_coff_64bit_relocation
cmp [labels_type],2
jne invalid_use_of_symbol
jmp coff_relocation
relative_coff_64bit_relocation:
mov al,4
cmp [labels_type],4
jne invalid_use_of_symbol
coff_relocation:
mov ebx,[free_additional_memory]
add ebx,0Ch
cmp ebx,[structures_buffer]
jae out_of_memory
mov [free_additional_memory],ebx
mov byte [ebx-0Ch],al
mov eax,[current_section]
mov eax,[eax+8]
neg eax
add eax,edi
mov [ebx-0Ch+4],eax
mov eax,[symbol_identifier]
mov [ebx-0Ch+8],eax
pop eax ebx
ret
close_coff:
call close_coff_section
cmp [next_pass_needed],0
je coff_closed
mov eax,[symbols_stream]
mov [free_additional_memory],eax
coff_closed:
ret
coff_formatter:
sub edi,[code_start]
mov [code_size],edi
call prepare_default_section
mov edi,[free_additional_memory]
mov ebx,edi
mov ecx,28h shr 2
imul ecx,[number_of_sections]
add ecx,14h shr 2
lea eax,[edi+ecx*4]
cmp eax,[structures_buffer]
jae out_of_memory
xor eax,eax
rep stos dword [edi]
mov word [ebx],14Ch
test [format_flags],8
jz coff_magic_ok
mov word [ebx],8664h
coff_magic_ok:
mov word [ebx+12h],104h
bt [format_flags],0
jnc coff_flags_ok
or byte [ebx+12h],80h
coff_flags_ok:
push ebx
call make_timestamp
pop ebx
mov [ebx+4],eax
mov eax,[number_of_sections]
mov [ebx+2],ax
mov esi,[symbols_stream]
xor ecx,ecx
enumerate_symbols:
cmp esi,[free_additional_memory]
je symbols_enumerated
mov dl,[esi]
or dl,dl
jz enumerate_section
cmp dl,80h
je enumerate_public
ja enumerate_extrn
add esi,0Ch
jmp enumerate_symbols
enumerate_section:
mov edx,ecx
shl edx,8
mov [esi],edx
inc ecx
add esi,18h
jmp enumerate_symbols
enumerate_public:
mov edx,eax
shl edx,8
mov dl,80h
mov [esi],edx
mov edx,[esi+8]
add esi,10h
inc eax
cmp byte [edx+11],2
jne enumerate_symbols
mov edx,[edx+20]
cmp byte [edx],81h
jne enumerate_symbols
inc eax
jmp enumerate_symbols
enumerate_extrn:
mov edx,eax
shl edx,8
mov dl,81h
mov [esi],edx
add esi,0Ch
inc eax
jmp enumerate_symbols
prepare_default_section:
mov ebx,[symbols_stream]
cmp dword [ebx+0Ch],0
jne default_section_ok
cmp [number_of_sections],0
je default_section_ok
mov edx,ebx
find_references_to_default_section:
cmp ebx,[free_additional_memory]
jne check_reference
add [symbols_stream],18h
ret
check_reference:
mov al,[ebx]
or al,al
jz skip_other_section
cmp al,80h
je check_public_reference
ja next_reference
cmp edx,[ebx+8]
je default_section_ok
next_reference:
add ebx,0Ch
jmp find_references_to_default_section
check_public_reference:
mov eax,[ebx+8]
add ebx,10h
test byte [eax+8],1
jz find_references_to_default_section
mov cx,[current_pass]
cmp cx,[eax+16]
jne find_references_to_default_section
cmp edx,[eax+20]
je default_section_ok
jmp find_references_to_default_section
skip_other_section:
add ebx,18h
jmp find_references_to_default_section
default_section_ok:
inc [number_of_sections]
ret
symbols_enumerated:
mov [ebx+0Ch],eax
mov ebp,edi
sub ebp,ebx
push ebp
lea edi,[ebx+14h]
mov esi,[symbols_stream]
find_section:
cmp esi,[free_additional_memory]
je sections_finished
mov al,[esi]
or al,al
jz section_found
add esi,0Ch
cmp al,80h
jne find_section
add esi,4
jmp find_section
section_found:
push esi edi
mov esi,[esi+4]
or esi,esi
jz default_section
mov ecx,[esi]
add esi,4
rep movs byte [edi],[esi]
jmp section_name_ok
default_section:
mov al,'.'
stos byte [edi]
mov eax,'flat'
stos dword [edi]
section_name_ok:
pop edi esi
mov eax,[esi+0Ch]
mov [edi+10h],eax
mov eax,[esi+14h]
mov [edi+24h],eax
test al,80h
jnz section_ptr_ok
mov eax,[esi+8]
sub eax,[code_start]
add eax,ebp
mov [edi+14h],eax
section_ptr_ok:
mov ebx,[code_start]
mov edx,[code_size]
add ebx,edx
add edx,ebp
xor ecx,ecx
add esi,18h
find_relocations:
cmp esi,[free_additional_memory]
je section_relocations_done
mov al,[esi]
or al,al
jz section_relocations_done
cmp al,80h
jb add_relocation
ja next_relocation
add esi,10h
jmp find_relocations
add_relocation:
lea eax,[ebx+0Ah]
cmp eax,[display_buffer]
ja out_of_memory
mov eax,[esi+4]
mov [ebx],eax
mov eax,[esi+8]
mov eax,[eax]
shr eax,8
mov [ebx+4],eax
movzx ax,byte [esi]
mov [ebx+8],ax
add ebx,0Ah
inc ecx
next_relocation:
add esi,0Ch
jmp find_relocations
section_relocations_done:
cmp ecx,10000h
jb section_relocations_count_16bit
bt [format_flags],0
jnc format_limitations_exceeded
mov word [edi+20h],0FFFFh
or dword [edi+24h],1000000h
mov [edi+18h],edx
push esi edi
push ecx
lea esi,[ebx-1]
add ebx,0Ah
lea edi,[ebx-1]
imul ecx,0Ah
std
rep movs byte [edi],[esi]
cld
pop ecx
inc esi
inc ecx
mov [esi],ecx
xor eax,eax
mov [esi+4],eax
mov [esi+8],ax
pop edi esi
jmp section_relocations_ok
section_relocations_count_16bit:
mov [edi+20h],cx
jcxz section_relocations_ok
mov [edi+18h],edx
section_relocations_ok:
sub ebx,[code_start]
mov [code_size],ebx
add edi,28h
jmp find_section
sections_finished:
mov edx,[free_additional_memory]
mov ebx,[code_size]
add ebp,ebx
mov [edx+8],ebp
add ebx,[code_start]
mov edi,ebx
mov ecx,[edx+0Ch]
imul ecx,12h shr 1
xor eax,eax
shr ecx,1
jnc zero_symbols_table
stos word [edi]
zero_symbols_table:
rep stos dword [edi]
mov edx,edi
stos dword [edi]
mov esi,[symbols_stream]
make_section_symbols:
cmp esi,[free_additional_memory]
je section_symbols_ok
mov al,[esi]
or al,al
jz add_section_symbol
add esi,0Ch
cmp al,80h
jne make_section_symbols
add esi,4
jmp make_section_symbols
add_section_symbol:
call store_symbol_name
mov eax,[esi]
shr eax,8
inc eax
mov [ebx+0Ch],ax
mov byte [ebx+10h],3
add esi,18h
add ebx,12h
jmp make_section_symbols
section_symbols_ok:
mov esi,[symbols_stream]
make_symbols_table:
cmp esi,[free_additional_memory]
je symbols_table_ok
mov al,[esi]
cmp al,80h
je add_public_symbol
ja add_extrn_symbol
add esi,0Ch
or al,al
jnz make_symbols_table
add esi,0Ch
jmp make_symbols_table
add_extrn_symbol:
call store_symbol_name
mov byte [ebx+10h],2
add esi,0Ch
add ebx,12h
jmp make_symbols_table
add_public_symbol:
call store_symbol_name
mov eax,[esi+0Ch]
mov [current_line],eax
mov eax,[esi+8]
test byte [eax+8],1
jz undefined_symbol
mov cx,[current_pass]
cmp cx,[eax+16]
jne undefined_symbol
mov cl,[eax+11]
or cl,cl
jz public_constant
test [format_flags],8
jnz check_64bit_public_symbol
cmp cl,2
je public_symbol_type_ok
jmp invalid_use_of_symbol
check_64bit_public_symbol:
cmp cl,4
jne invalid_use_of_symbol
public_symbol_type_ok:
mov ecx,[eax+20]
mov ecx,[ecx]
cmp cl,81h
je alias_symbol
or cl,cl
jnz invalid_use_of_symbol
shr ecx,8
inc cx
mov [ebx+0Ch],cx
public_symbol_section_ok:
cmp dword [eax+4],0
je store_public_symbol
cmp dword [eax+4],-1
jne value_out_of_range
bt dword [eax],31
jnc value_out_of_range
store_public_symbol:
mov eax,[eax]
mov [ebx+8],eax
mov byte [ebx+10h],2
add esi,10h
add ebx,12h
jmp make_symbols_table
alias_symbol:
bt [format_flags],0
jnc invalid_use_of_symbol
mov ecx,[eax]
or ecx,[eax+4]
jnz invalid_use_of_symbol
mov byte [ebx+10h],69h
mov byte [ebx+11h],1
add ebx,12h
mov ecx,[eax+20]
mov ecx,[ecx]
shr ecx,8
mov [ebx],ecx
mov byte [ebx+4],3
add esi,10h
add ebx,12h
jmp make_symbols_table
public_constant:
mov word [ebx+0Ch],0FFFFh
jmp public_symbol_section_ok
symbols_table_ok:
mov eax,edi
sub eax,edx
mov [edx],eax
sub edi,[code_start]
mov [code_size],edi
mov [written_size],0
mov edx,[output_file]
call create
jc write_failed
mov edx,[free_additional_memory]
pop ecx
add [written_size],ecx
call write
jc write_failed
jmp write_output
store_symbol_name:
push esi
mov esi,[esi+4]
or esi,esi
jz default_name
lods dword [esi]
mov ecx,eax
cmp ecx,8
ja add_string
push edi
mov edi,ebx
rep movs byte [edi],[esi]
pop edi esi
ret
default_name:
mov dword [ebx],'.fla'
mov dword [ebx+4],'t'
pop esi
ret
add_string:
mov eax,edi
sub eax,edx
mov [ebx+4],eax
inc ecx
rep movs byte [edi],[esi]
pop esi
ret
format_elf:
test [format_flags],8
jnz format_elf64
mov edx,edi
mov ecx,34h shr 2
lea eax,[edi+ecx*4]
cmp eax,[display_buffer]
jae out_of_memory
xor eax,eax
rep stos dword [edi]
mov dword [edx],7Fh + 'ELF' shl 8
mov al,1
mov [edx+4],al
mov [edx+5],al
mov [edx+6],al
mov [edx+14h],al
mov byte [edx+12h],3
mov byte [edx+28h],34h
mov byte [edx+2Eh],28h
mov [code_type],32
cmp word [esi],1D19h
je format_elf_exe
mov [labels_type],2
elf_header_ok:
mov byte [edx+10h],1
mov eax,[additional_memory]
mov [symbols_stream],eax
mov ebx,eax
add eax,18h
cmp eax,[structures_buffer]
jae out_of_memory
mov [free_additional_memory],eax
xor eax,eax
mov [current_section],ebx
mov [number_of_sections],eax
mov dword [org_origin],edi
mov dword [org_origin+4],eax
mov [org_registers],eax
mov [org_start],edi
mov [org_symbol],ebx
mov [ebx],al
mov [ebx+4],eax
mov [ebx+8],edi
mov al,111b
mov [ebx+14h],eax
mov al,4
mov [ebx+10h],eax
test [format_flags],8
jz instruction_assembled
mov byte [ebx+10h],8
jmp instruction_assembled
format_elf64:
mov edx,edi
mov ecx,40h shr 2
lea eax,[edi+ecx*4]
cmp eax,[display_buffer]
jae out_of_memory
xor eax,eax
rep stos dword [edi]
mov dword [edx],7Fh + 'ELF' shl 8
mov al,1
mov [edx+5],al
mov [edx+6],al
mov [edx+14h],al
mov byte [edx+4],2
mov byte [edx+12h],62
mov byte [edx+34h],40h
mov byte [edx+3Ah],40h
mov [code_type],64
cmp word [esi],1D19h
je format_elf64_exe
mov [labels_type],4
jmp elf_header_ok
elf_section:
bt [format_flags],0
jc elf_exe_section
call close_coff_section
mov ebx,[free_additional_memory]
lea eax,[ebx+18h]
cmp eax,[structures_buffer]
jae out_of_memory
mov [free_additional_memory],eax
mov [current_section],ebx
inc word [number_of_sections]
jz format_limitations_exceeded
xor eax,eax
mov [ebx],al
mov [ebx+8],edi
mov dword [org_origin],edi
mov dword [org_origin+4],0
mov [org_registers],0
mov [org_start],edi
mov [org_symbol],ebx
test [format_flags],8
jnz elf64_labels_type
mov [labels_type],2
jmp elf_labels_type_ok
elf64_labels_type:
mov [labels_type],4
elf_labels_type_ok:
mov [ebx+10h],eax
mov al,10b
mov [ebx+14h],eax
lods word [esi]
cmp ax,'('
jne invalid_argument
mov [ebx+4],esi
mov ecx,[esi]
lea esi,[esi+4+ecx+1]
elf_section_flags:
cmp byte [esi],1Ch
je elf_section_alignment
cmp byte [esi],19h
jne elf_section_settings_ok
inc esi
lods byte [esi]
sub al,28
xor al,11b
test al,not 10b
jnz invalid_argument
mov cl,al
mov al,1
shl al,cl
test byte [ebx+14h],al
jnz setting_already_specified
or byte [ebx+14h],al
jmp elf_section_flags
elf_section_alignment:
inc esi
lods byte [esi]
or al,al
jnz invalid_argument
lods byte [esi]
cmp al,'('
jne invalid_argument
cmp byte [esi],'.'
je invalid_value
push ebx
call get_dword_value
pop ebx
cmp [value_type],0
jne invalid_use_of_symbol
mov edx,eax
dec edx
test eax,edx
jnz invalid_value
or eax,eax
jz invalid_value
xchg [ebx+10h],eax
or eax,eax
jnz setting_already_specified
jmp elf_section_flags
elf_section_settings_ok:
cmp dword [ebx+10h],0
jne instruction_assembled
mov dword [ebx+10h],4
test [format_flags],8
jz instruction_assembled
mov byte [ebx+10h],8
jmp instruction_assembled
mark_elf_relocation:
cmp [value_type],3
je elf_relocation_relative
push ebx eax
mov al,1
jmp coff_relocation
elf_relocation_relative:
cmp [labels_type],0
je invalid_use_of_symbol
push ebx
mov ebx,[current_section]
mov ebx,[ebx+8]
sub ebx,edi
sub eax,ebx
push eax
mov al,2
jmp coff_relocation
close_elf:
bt [format_flags],0
jc close_elf_exe
call close_coff_section
cmp [next_pass_needed],0
je elf_closed
mov eax,[symbols_stream]
mov [free_additional_memory],eax
elf_closed:
ret
elf_formatter:
push edi
call prepare_default_section
mov esi,[symbols_stream]
mov edi,[free_additional_memory]
xor eax,eax
mov ecx,4
rep stos dword [edi]
test [format_flags],8
jz find_first_section
mov ecx,2
rep stos dword [edi]
find_first_section:
mov al,[esi]
or al,al
jz first_section_found
cmp al,80h
jne skip_other_symbol
add esi,4
skip_other_symbol:
add esi,0Ch
jmp find_first_section
first_section_found:
mov ebx,esi
mov ebp,esi
add esi,18h
xor ecx,ecx
xor edx,edx
find_next_section:
cmp esi,[free_additional_memory]
je make_section_symbol
mov al,[esi]
or al,al
jz make_section_symbol
cmp al,80h
je skip_public
ja skip_extrn
or byte [ebx+14h],40h
skip_extrn:
add esi,0Ch
jmp find_next_section
skip_public:
add esi,10h
jmp find_next_section
make_section_symbol:
mov eax,edi
xchg eax,[ebx+4]
stos dword [edi]
test [format_flags],8
jnz elf64_section_symbol
xor eax,eax
stos dword [edi]
stos dword [edi]
call store_section_index
jmp section_symbol_ok
store_section_index:
inc ecx
mov eax,ecx
shl eax,8
mov [ebx],eax
inc dx
jz format_limitations_exceeded
mov eax,edx
shl eax,16
mov al,3
test byte [ebx+14h],40h
jz section_index_ok
or ah,-1
inc dx
jz format_limitations_exceeded
section_index_ok:
stos dword [edi]
ret
elf64_section_symbol:
call store_section_index
xor eax,eax
stos dword [edi]
stos dword [edi]
stos dword [edi]
stos dword [edi]
section_symbol_ok:
mov ebx,esi
add esi,18h
cmp ebx,[free_additional_memory]
jne find_next_section
inc dx
jz format_limitations_exceeded
mov [current_section],edx
mov esi,[symbols_stream]
find_other_symbols:
cmp esi,[free_additional_memory]
je elf_symbol_table_ok
mov al,[esi]
or al,al
jz skip_section
cmp al,80h
je make_public_symbol
ja make_extrn_symbol
add esi,0Ch
jmp find_other_symbols
skip_section:
add esi,18h
jmp find_other_symbols
make_public_symbol:
mov eax,[esi+0Ch]
mov [current_line],eax
mov ebx,[esi+8]
test byte [ebx+8],1
jz undefined_symbol
mov ax,[current_pass]
cmp ax,[ebx+16]
jne undefined_symbol
mov dl,[ebx+11]
or dl,dl
jz public_absolute
mov eax,[ebx+20]
cmp byte [eax],0
jne invalid_use_of_symbol
mov eax,[eax+4]
test [format_flags],8
jnz elf64_public
cmp dl,2
jne invalid_use_of_symbol
mov dx,[eax+0Eh]
jmp section_for_public_ok
elf64_public:
cmp dl,4
jne invalid_use_of_symbol
mov dx,[eax+6]
jmp section_for_public_ok
public_absolute:
mov dx,0FFF1h
section_for_public_ok:
mov eax,[esi+4]
stos dword [edi]
test [format_flags],8
jnz elf64_public_symbol
call get_public_value
stos dword [edi]
xor eax,eax
mov al,[ebx+10]
stos dword [edi]
mov eax,edx
shl eax,16
mov al,10h
stos dword [edi]
jmp public_symbol_ok
elf64_public_symbol:
mov eax,edx
shl eax,16
mov al,10h
stos dword [edi]
call get_public_value
stos dword [edi]
xor eax,eax
stos dword [edi]
mov al,[ebx+10]
stos dword [edi]
xor al,al
stos dword [edi]
public_symbol_ok:
inc ecx
mov eax,ecx
shl eax,8
mov al,80h
mov [esi],eax
add esi,10h
jmp find_other_symbols
get_public_value:
mov eax,[ebx]
cmp dword [ebx+4],0
je public_value_ok
cmp dword [ebx+4],-1
jne value_out_of_range
bt eax,31
jnc value_out_of_range
public_value_ok:
ret
make_extrn_symbol:
mov eax,[esi+4]
stos dword [edi]
test [format_flags],8
jnz elf64_extrn_symbol
xor eax,eax
stos dword [edi]
mov eax,[esi+8]
stos dword [edi]
mov eax,10h
stos dword [edi]
jmp extrn_symbol_ok
elf64_extrn_symbol:
mov eax,10h
stos dword [edi]
xor al,al
stos dword [edi]
stos dword [edi]
mov eax,[esi+8]
stos dword [edi]
xor eax,eax
stos dword [edi]
extrn_symbol_ok:
inc ecx
mov eax,ecx
shl eax,8
mov al,81h
mov [esi],eax
add esi,0Ch
jmp find_other_symbols
elf_symbol_table_ok:
mov edx,edi
mov ebx,[free_additional_memory]
xor al,al
stos byte [edi]
add edi,16
mov [edx+1],edx
add ebx,10h
test [format_flags],8
jz make_string_table
add ebx,8
make_string_table:
cmp ebx,edx
je elf_string_table_ok
test [format_flags],8
jnz make_elf64_string
cmp byte [ebx+0Dh],0
je rel_prefix_ok
mov byte [ebx+0Dh],0
mov eax,'.rel'
stos dword [edi]
rel_prefix_ok:
mov esi,edi
sub esi,edx
xchg esi,[ebx]
add ebx,10h
make_elf_string:
or esi,esi
jz default_string
lods dword [esi]
mov ecx,eax
rep movs byte [edi],[esi]
xor al,al
stos byte [edi]
jmp make_string_table
make_elf64_string:
cmp byte [ebx+5],0
je elf64_rel_prefix_ok
mov byte [ebx+5],0
mov eax,'.rel'
stos dword [edi]
mov al,'a'
stos byte [edi]
elf64_rel_prefix_ok:
mov esi,edi
sub esi,edx
xchg esi,[ebx]
add ebx,18h
jmp make_elf_string
default_string:
mov eax,'.fla'
stos dword [edi]
mov ax,'t'
stos word [edi]
jmp make_string_table
elf_string_table_ok:
mov [edx+1+8],edi
mov ebx,[code_start]
mov eax,edi
sub eax,[free_additional_memory]
test [format_flags],8
jnz finish_elf64_header
mov [ebx+20h],eax
mov eax,[current_section]
inc ax
jz format_limitations_exceeded
mov [ebx+32h],ax
inc ax
jz format_limitations_exceeded
mov [ebx+30h],ax
jmp elf_header_finished
finish_elf64_header:
mov [ebx+28h],eax
mov eax,[current_section]
inc ax
jz format_limitations_exceeded
mov [ebx+3Eh],ax
inc ax
jz format_limitations_exceeded
mov [ebx+3Ch],ax
elf_header_finished:
xor eax,eax
mov ecx,10
rep stos dword [edi]
test [format_flags],8
jz elf_null_section_ok
mov ecx,6
rep stos dword [edi]
elf_null_section_ok:
mov esi,ebp
xor ecx,ecx
make_section_entry:
mov ebx,edi
mov eax,[esi+4]
mov eax,[eax]
stos dword [edi]
mov eax,1
cmp dword [esi+0Ch],0
je bss_section
test byte [esi+14h],80h
jz section_type_ok
bss_section:
mov al,8
section_type_ok:
stos dword [edi]
mov eax,[esi+14h]
and al,3Fh
call store_elf_machine_word
xor eax,eax
call store_elf_machine_word
mov eax,[esi+8]
mov [image_base],eax
sub eax,[code_start]
call store_elf_machine_word
mov eax,[esi+0Ch]
call store_elf_machine_word
xor eax,eax
stos dword [edi]
stos dword [edi]
mov eax,[esi+10h]
call store_elf_machine_word
xor eax,eax
call store_elf_machine_word
inc ecx
add esi,18h
xchg edi,[esp]
mov ebp,edi
convert_relocations:
cmp esi,[free_additional_memory]
je relocations_converted
mov al,[esi]
or al,al
jz relocations_converted
cmp al,80h
jb make_relocation_entry
ja relocation_entry_ok
add esi,10h
jmp convert_relocations
make_relocation_entry:
test [format_flags],8
jnz make_elf64_relocation_entry
mov eax,[esi+4]
stos dword [edi]
mov eax,[esi+8]
mov eax,[eax]
mov al,[esi]
stos dword [edi]
jmp relocation_entry_ok
make_elf64_relocation_entry:
mov eax,[esi+4]
stos dword [edi]
xor eax,eax
stos dword [edi]
movzx eax,byte [esi]
stos dword [edi]
mov eax,[esi+8]
mov eax,[eax]
shr eax,8
stos dword [edi]
xor eax,eax
stos dword [edi]
stos dword [edi]
relocation_entry_ok:
add esi,0Ch
jmp convert_relocations
store_elf_machine_word:
stos dword [edi]
test [format_flags],8
jz elf_machine_word_ok
mov dword [edi],0
add edi,4
elf_machine_word_ok:
ret
relocations_converted:
cmp edi,ebp
xchg edi,[esp]
je rel_section_ok
mov eax,[ebx]
sub eax,4
test [format_flags],8
jz store_relocations_name_offset
dec eax
store_relocations_name_offset:
stos dword [edi]
test [format_flags],8
jnz rela_section
mov eax,9
jmp store_relocations_type
rela_section:
mov eax,4
store_relocations_type:
stos dword [edi]
xor al,al
call store_elf_machine_word
call store_elf_machine_word
mov eax,ebp
sub eax,[code_start]
call store_elf_machine_word
mov eax,[esp]
sub eax,ebp
call store_elf_machine_word
mov eax,[current_section]
stos dword [edi]
mov eax,ecx
stos dword [edi]
inc ecx
test [format_flags],8
jnz finish_elf64_rela_section
mov eax,4
stos dword [edi]
mov al,8
stos dword [edi]
jmp rel_section_ok
finish_elf64_rela_section:
mov eax,8
stos dword [edi]
xor al,al
stos dword [edi]
mov al,24
stos dword [edi]
xor al,al
stos dword [edi]
rel_section_ok:
cmp esi,[free_additional_memory]
jne make_section_entry
pop eax
mov ebx,[code_start]
sub eax,ebx
mov [code_size],eax
mov ecx,20h
test [format_flags],8
jz adjust_elf_section_headers_offset
mov ecx,28h
adjust_elf_section_headers_offset:
add [ebx+ecx],eax
mov eax,1
stos dword [edi]
mov al,2
stos dword [edi]
xor al,al
call store_elf_machine_word
call store_elf_machine_word
mov eax,[code_size]
call store_elf_machine_word
mov eax,[edx+1]
sub eax,[free_additional_memory]
call store_elf_machine_word
mov eax,[current_section]
inc eax
stos dword [edi]
mov eax,[number_of_sections]
inc eax
stos dword [edi]
test [format_flags],8
jnz finish_elf64_sym_section
mov eax,4
stos dword [edi]
mov al,10h
stos dword [edi]
jmp sym_section_ok
finish_elf64_sym_section:
mov eax,8
stos dword [edi]
xor al,al
stos dword [edi]
mov al,18h
stos dword [edi]
xor al,al
stos dword [edi]
sym_section_ok:
mov al,1+8
stos dword [edi]
mov al,3
stos dword [edi]
xor al,al
call store_elf_machine_word
call store_elf_machine_word
mov eax,[edx+1]
sub eax,[free_additional_memory]
add eax,[code_size]
call store_elf_machine_word
mov eax,[edx+1+8]
sub eax,[edx+1]
call store_elf_machine_word
xor eax,eax
stos dword [edi]
stos dword [edi]
mov al,1
call store_elf_machine_word
xor eax,eax
call store_elf_machine_word
mov eax,'tab'
mov dword [edx+1],'.sym'
mov [edx+1+4],eax
mov dword [edx+1+8],'.str'
mov [edx+1+8+4],eax
mov [written_size],0
mov edx,[output_file]
call create
jc write_failed
call write_code
mov ecx,edi
mov edx,[free_additional_memory]
sub ecx,edx
add [written_size],ecx
call write
jc write_failed
jmp output_written
format_elf_exe:
add esi,2
or [format_flags],1
mov [image_base],8048000h
cmp byte [esi],80h
jne elf_exe_base_ok
lods word [esi]
cmp ah,'('
jne invalid_argument
cmp byte [esi],'.'
je invalid_value
push edx
call get_dword_value
cmp [value_type],0
jne invalid_use_of_symbol
mov [image_base],eax
pop edx
elf_exe_base_ok:
mov byte [edx+10h],2
mov byte [edx+2Ah],20h
mov ebx,edi
mov ecx,20h shr 2
cmp [current_pass],0
je init_elf_exe_sections
imul ecx,[number_of_sections]
init_elf_exe_sections:
xor eax,eax
rep stos dword [edi]
mov [number_of_sections],0
mov byte [ebx],1
mov word [ebx+1Ch],1000h
mov byte [ebx+18h],111b
mov eax,edi
sub eax,[code_start]
mov [ebx+4],eax
add eax,[image_base]
mov [ebx+8],eax
mov [ebx+0Ch],eax
mov [edx+18h],eax
xor edx,edx
not eax
not edx
add eax,1
adc edx,0
add eax,edi
adc edx,0
mov dword [org_origin],eax
mov dword [org_origin+4],edx
mov [org_registers],0
mov [org_start],edi
mov [symbols_stream],edi
jmp instruction_assembled
format_elf64_exe:
add esi,2
or [format_flags],1
mov [image_base],400000h
mov [image_base_high],0
cmp byte [esi],80h
jne elf64_exe_base_ok
lods word [esi]
cmp ah,'('
jne invalid_argument
cmp byte [esi],'.'
je invalid_value
push edx
call get_qword_value
cmp [value_type],0
jne invalid_use_of_symbol
mov [image_base],eax
mov [image_base_high],edx
pop edx
elf64_exe_base_ok:
mov byte [edx+10h],2
mov byte [edx+36h],38h
mov ebx,edi
mov ecx,38h shr 2
cmp [current_pass],0
je init_elf64_exe_sections
imul ecx,[number_of_sections]
init_elf64_exe_sections:
xor eax,eax
rep stos dword [edi]
mov [number_of_sections],0
mov byte [ebx],1
mov word [ebx+30h],1000h
mov byte [ebx+4],111b
push edx
mov eax,edi
sub eax,[code_start]
mov [ebx+8],eax
xor edx,edx
add eax,[image_base]
adc edx,[image_base_high]
mov [ebx+10h],eax
mov [ebx+10h+4],edx
mov [ebx+18h],eax
mov [ebx+18h+4],edx
pop ebx
mov [ebx+18h],eax
mov [ebx+18h+4],edx
not eax
not edx
add eax,1
adc edx,0
add eax,edi
adc edx,0
mov dword [org_origin],eax
mov dword [org_origin+4],edx
mov [org_registers],0
mov [org_start],edi
mov [symbols_stream],edi
jmp instruction_assembled
elf_entry:
lods byte [esi]
cmp al,'('
jne invalid_argument
cmp byte [esi],'.'
je invalid_value
test [format_flags],8
jnz elf64_entry
call get_dword_value
cmp [value_type],0
jne invalid_use_of_symbol
mov edx,[code_start]
mov [edx+18h],eax
jmp instruction_assembled
elf64_entry:
call get_qword_value
cmp [value_type],0
jne invalid_use_of_symbol
mov ebx,[code_start]
mov [ebx+18h],eax
mov [ebx+1Ch],edx
jmp instruction_assembled
elf_exe_section:
test [format_flags],8
jnz elf64_exe_section
call close_elf_exe_section
push eax
mov ebx,[number_of_sections]
shl ebx,5
add ebx,[code_start]
add ebx,34h
cmp ebx,[symbols_stream]
jb new_elf_exe_section
mov ebx,[symbols_stream]
sub ebx,20h
push edi
mov edi,ebx
mov ecx,20h shr 2
xor eax,eax
rep stos dword [edi]
pop edi
or [next_pass_needed],-1
new_elf_exe_section:
mov byte [ebx],1
mov word [ebx+1Ch],1000h
elf_exe_section_flags:
cmp byte [esi],19h
jne elf_exe_section_flags_ok
lods word [esi]
sub ah,28
jbe invalid_argument
cmp ah,1
je mark_elf_exe_section_flag
cmp ah,3
ja invalid_argument
xor ah,1
cmp ah,2
je mark_elf_exe_section_flag
inc ah
mark_elf_exe_section_flag:
test [ebx+18h],ah
jnz setting_already_specified
or [ebx+18h],ah
jmp elf_exe_section_flags
elf_exe_section_flags_ok:
mov eax,edi
sub eax,[code_start]
mov [ebx+4],eax
pop edx
and eax,0FFFh
add edx,eax
mov [ebx+8],edx
mov [ebx+0Ch],edx
mov eax,edx
xor edx,edx
not eax
not edx
add eax,1
adc edx,0
add eax,edi
adc edx,0
mov dword [org_origin],eax
mov dword [org_origin+4],edx
mov [org_registers],0
mov [org_start],edi
inc [number_of_sections]
jmp instruction_assembled
close_elf_exe_section:
cmp [number_of_sections],0
jne finish_elf_exe_section
cmp edi,[symbols_stream]
jne first_elf_exe_section_ok
push edi
mov edi,[code_start]
add edi,34h
mov ecx,20h shr 2
xor eax,eax
rep stos dword [edi]
pop edi
mov eax,[image_base]
ret
first_elf_exe_section_ok:
inc [number_of_sections]
finish_elf_exe_section:
mov ebx,[number_of_sections]
dec ebx
shl ebx,5
add ebx,[code_start]
add ebx,34h
mov eax,edi
sub eax,[code_start]
sub eax,[ebx+4]
mov edx,edi
cmp edi,[undefined_data_end]
jne elf_exe_section_size_ok
mov edi,[undefined_data_start]
elf_exe_section_size_ok:
mov [ebx+14h],eax
add eax,edi
sub eax,edx
mov [ebx+10h],eax
mov eax,[ebx+8]
add eax,[ebx+14h]
add eax,0FFFh
and eax,not 0FFFh
ret
elf64_exe_section:
call close_elf64_exe_section
push eax edx
mov ebx,[number_of_sections]
imul ebx,38h
add ebx,[code_start]
add ebx,40h
cmp ebx,[symbols_stream]
jb new_elf64_exe_section
mov ebx,[symbols_stream]
sub ebx,38h
push edi
mov edi,ebx
mov ecx,38h shr 2
xor eax,eax
rep stos dword [edi]
pop edi
or [next_pass_needed],-1
new_elf64_exe_section:
mov byte [ebx],1
mov word [ebx+30h],1000h
elf64_exe_section_flags:
cmp byte [esi],19h
jne elf64_exe_section_flags_ok
lods word [esi]
sub ah,28
jbe invalid_argument
cmp ah,1
je mark_elf64_exe_section_flag
cmp ah,3
ja invalid_argument
xor ah,1
cmp ah,2
je mark_elf64_exe_section_flag
inc ah
mark_elf64_exe_section_flag:
test [ebx+4],ah
jnz setting_already_specified
or [ebx+4],ah
jmp elf64_exe_section_flags
elf64_exe_section_flags_ok:
mov ecx,edi
sub ecx,[code_start]
mov [ebx+8],ecx
pop edx eax
and ecx,0FFFh
add eax,ecx
adc edx,0
mov [ebx+10h],eax
mov [ebx+10h+4],edx
mov [ebx+18h],eax
mov [ebx+18h+4],edx
not eax
not edx
add eax,1
adc edx,0
add eax,edi
adc edx,0
mov dword [org_origin],eax
mov dword [org_origin+4],edx
mov [org_registers],0
mov [org_start],edi
inc [number_of_sections]
jmp instruction_assembled
close_elf64_exe_section:
cmp [number_of_sections],0
jne finish_elf64_exe_section
cmp edi,[symbols_stream]
jne first_elf64_exe_section_ok
push edi
mov edi,[code_start]
add edi,40h
mov ecx,38h shr 2
xor eax,eax
rep stos dword [edi]
pop edi
mov eax,[image_base]
mov edx,[image_base_high]
ret
first_elf64_exe_section_ok:
inc [number_of_sections]
finish_elf64_exe_section:
mov ebx,[number_of_sections]
dec ebx
imul ebx,38h
add ebx,[code_start]
add ebx,40h
mov eax,edi
sub eax,[code_start]
sub eax,[ebx+8]
mov edx,edi
cmp edi,[undefined_data_end]
jne elf64_exe_section_size_ok
mov edi,[undefined_data_start]
elf64_exe_section_size_ok:
mov [ebx+28h],eax
add eax,edi
sub eax,edx
mov [ebx+20h],eax
mov eax,[ebx+10h]
mov edx,[ebx+10h+4]
add eax,[ebx+28h]
adc edx,0
sub eax,1
sbb edx,0
shrd eax,edx,12
shr edx,12
add eax,1
adc edx,0
shld edx,eax,12
shl eax,12
ret
close_elf_exe:
test [format_flags],8
jnz close_elf64_exe
call close_elf_exe_section
mov edx,[code_start]
mov eax,[number_of_sections]
mov byte [edx+1Ch],34h
mov [edx+2Ch],ax
shl eax,5
add eax,edx
add eax,34h
cmp eax,[symbols_stream]
je elf_exe_ok
or [next_pass_needed],-1
elf_exe_ok:
ret
close_elf64_exe:
call close_elf64_exe_section
mov edx,[code_start]
mov eax,[number_of_sections]
mov byte [edx+20h],40h
mov [edx+38h],ax
imul eax,38h
add eax,edx
add eax,40h
cmp eax,[symbols_stream]
je elf64_exe_ok
or [next_pass_needed],-1
elf64_exe_ok:
ret
formatter_symbols:
db 5,'align',1Ch,0
db 6,'binary',18h,10h
db 4,'code',19h,5
db 4,'coff',18h,40h
db 7,'console',1Bh,3
db 4,'data',19h,6
db 11,'discardable',19h,25
db 3,'dll',1Bh,80h
db 3,'elf',18h,50h
db 5,'elf64',18h,58h
db 10,'executable',19h,29
db 6,'export',1Ah,0
db 6,'fixups',1Ah,5
db 3,'gui',1Bh,2
db 6,'import',1Ah,1
db 2,'ms',17h,41h
db 4,'ms64',17h,49h
db 2,'mz',18h,20h
db 6,'native',1Bh,1
db 11,'notpageable',19h,27
db 2,'pe',18h,30h
db 4,'pe64',18h,38h
db 8,'readable',19h,30
db 8,'resource',1Ah,2
db 9,'shareable',19h,28
db 3,'wdm',1Bh,81h
db 8,'writable',19h,31
db 9,'writeable',19h,31
db 0
Property changes:
Added: svn:eol-style
+native
\ No newline at end of property