added fasm2 as well
This commit is contained in:
503
toolchain/fasm2/source/linux/fasmg.asm
Normal file
503
toolchain/fasm2/source/linux/fasmg.asm
Normal file
@ -0,0 +1,503 @@
|
||||
|
||||
include 'macro/struct.inc'
|
||||
|
||||
format ELF executable 3
|
||||
entry start
|
||||
|
||||
include '../version.inc'
|
||||
|
||||
struct timeval
|
||||
time_t dd ?
|
||||
suseconds_t dd ?
|
||||
ends
|
||||
|
||||
segment readable executable
|
||||
|
||||
start:
|
||||
|
||||
mov ecx,[esp]
|
||||
mov [argc],ecx
|
||||
lea ebx,[esp+4]
|
||||
mov [argv],ebx
|
||||
lea esi,[esp+4+ecx*4+4]
|
||||
mov [env],esi
|
||||
|
||||
call system_init
|
||||
|
||||
call get_arguments
|
||||
mov bl,al
|
||||
cmp [no_logo],0
|
||||
jne logo_ok
|
||||
mov esi,_logo
|
||||
xor ecx,ecx
|
||||
call display_string
|
||||
logo_ok:
|
||||
test bl,bl
|
||||
jnz display_usage_information
|
||||
|
||||
xor al,al
|
||||
mov ecx,[verbosity_level]
|
||||
jecxz init
|
||||
or al,TRACE_ERROR_STACK
|
||||
dec ecx
|
||||
jz init
|
||||
or al,TRACE_DISPLAY
|
||||
init:
|
||||
call assembly_init
|
||||
|
||||
mov eax,78 ; sys_gettimeofday
|
||||
mov ebx,start_time
|
||||
xor ecx,ecx
|
||||
int 0x80
|
||||
|
||||
assemble:
|
||||
mov esi,[initial_commands]
|
||||
mov edx,[source_path]
|
||||
call assembly_pass
|
||||
jc assembly_done
|
||||
|
||||
mov eax,[current_pass]
|
||||
cmp eax,[maximum_number_of_passes]
|
||||
jb assemble
|
||||
|
||||
call show_display_data
|
||||
|
||||
mov esi,_error_prefix
|
||||
xor ecx,ecx
|
||||
call display_error_string
|
||||
mov esi,_code_cannot_be_generated
|
||||
xor ecx,ecx
|
||||
call display_error_string
|
||||
mov esi,_message_suffix
|
||||
xor ecx,ecx
|
||||
call display_error_string
|
||||
|
||||
jmp assembly_failed
|
||||
|
||||
assembly_done:
|
||||
|
||||
call show_display_data
|
||||
|
||||
cmp [first_error],0
|
||||
jne assembly_failed
|
||||
|
||||
cmp [no_logo],0
|
||||
jne summary_done
|
||||
mov eax,[current_pass]
|
||||
xor edx,edx
|
||||
call itoa
|
||||
call display_string
|
||||
mov esi,_passes
|
||||
cmp [current_pass],1
|
||||
jne display_passes_suffix
|
||||
mov esi,_pass
|
||||
display_passes_suffix:
|
||||
xor ecx,ecx
|
||||
call display_string
|
||||
mov eax,78 ; sys_gettimeofday
|
||||
mov ebx,end_time
|
||||
xor ecx,ecx
|
||||
int 0x80
|
||||
mov eax,[end_time.time_t]
|
||||
sub eax,[start_time.time_t]
|
||||
mov ecx,1000000
|
||||
mul ecx
|
||||
add eax,[end_time.suseconds_t]
|
||||
adc edx,0
|
||||
sub eax,[start_time.suseconds_t]
|
||||
sbb edx,0
|
||||
add eax,50000
|
||||
mov ecx,1000000
|
||||
div ecx
|
||||
mov ebx,eax
|
||||
mov eax,edx
|
||||
xor edx,edx
|
||||
mov ecx,100000
|
||||
div ecx
|
||||
mov [tenths_of_second],eax
|
||||
xchg eax,ebx
|
||||
or ebx,eax
|
||||
jz display_output_length
|
||||
xor edx,edx
|
||||
call itoa
|
||||
call display_string
|
||||
mov esi,_message_suffix
|
||||
mov ecx,1
|
||||
call display_string
|
||||
mov eax,[tenths_of_second]
|
||||
xor edx,edx
|
||||
call itoa
|
||||
call display_string
|
||||
mov esi,_seconds
|
||||
xor ecx,ecx
|
||||
call display_string
|
||||
display_output_length:
|
||||
call get_output_length
|
||||
push eax edx
|
||||
call itoa
|
||||
call display_string
|
||||
pop edx eax
|
||||
mov esi,_bytes
|
||||
cmp eax,1
|
||||
jne display_bytes_suffix
|
||||
test edx,edx
|
||||
jnz display_bytes_suffix
|
||||
mov esi,_byte
|
||||
display_bytes_suffix:
|
||||
xor ecx,ecx
|
||||
call display_string
|
||||
mov esi,_new_line
|
||||
xor ecx,ecx
|
||||
call display_string
|
||||
summary_done:
|
||||
|
||||
mov ebx,[source_path]
|
||||
mov edi,[output_path]
|
||||
call write_output_file
|
||||
jc write_failed
|
||||
|
||||
call assembly_shutdown
|
||||
call system_shutdown
|
||||
|
||||
xor ebx,ebx
|
||||
mov eax,1 ; sys_exit
|
||||
int 0x80
|
||||
|
||||
assembly_failed:
|
||||
|
||||
call show_errors
|
||||
|
||||
call assembly_shutdown
|
||||
call system_shutdown
|
||||
|
||||
mov ebx,2
|
||||
mov eax,1 ; sys_exit
|
||||
int 0x80
|
||||
|
||||
write_failed:
|
||||
mov ebx,_write_failed
|
||||
jmp fatal_error
|
||||
|
||||
out_of_memory:
|
||||
mov ebx,_out_of_memory
|
||||
jmp fatal_error
|
||||
|
||||
fatal_error:
|
||||
|
||||
mov esi,_error_prefix
|
||||
xor ecx,ecx
|
||||
call display_error_string
|
||||
mov esi,ebx
|
||||
xor ecx,ecx
|
||||
call display_error_string
|
||||
mov esi,_message_suffix
|
||||
xor ecx,ecx
|
||||
call display_error_string
|
||||
|
||||
call assembly_shutdown
|
||||
call system_shutdown
|
||||
|
||||
mov ebx,3
|
||||
mov eax,1 ; sys_exit
|
||||
int 0x80
|
||||
|
||||
display_usage_information:
|
||||
|
||||
mov esi,_usage
|
||||
xor ecx,ecx
|
||||
call display_string
|
||||
|
||||
call system_shutdown
|
||||
|
||||
mov ebx,1
|
||||
mov eax,1 ; sys_exit
|
||||
int 0x80
|
||||
|
||||
get_arguments:
|
||||
xor eax,eax
|
||||
mov [initial_commands],eax
|
||||
mov [source_path],eax
|
||||
mov [output_path],eax
|
||||
mov [no_logo],al
|
||||
mov [verbosity_level],eax
|
||||
mov [maximum_number_of_passes],100
|
||||
mov [maximum_number_of_errors],1
|
||||
mov [maximum_depth_of_stack],10000
|
||||
mov ecx,[argc]
|
||||
mov ebx,[argv]
|
||||
add ebx,4
|
||||
dec ecx
|
||||
jz error_in_arguments
|
||||
get_argument:
|
||||
mov esi,[ebx]
|
||||
mov al,[esi]
|
||||
cmp al,'-'
|
||||
je get_option
|
||||
cmp [source_path],0
|
||||
jne get_output_file
|
||||
mov [source_path],esi
|
||||
jmp next_argument
|
||||
get_output_file:
|
||||
cmp [output_path],0
|
||||
jne error_in_arguments
|
||||
mov [output_path],esi
|
||||
jmp next_argument
|
||||
get_option:
|
||||
inc esi
|
||||
lodsb
|
||||
cmp al,'e'
|
||||
je set_errors_limit
|
||||
cmp al,'E'
|
||||
je set_errors_limit
|
||||
cmp al,'i'
|
||||
je insert_initial_command
|
||||
cmp al,'I'
|
||||
je insert_initial_command
|
||||
cmp al,'p'
|
||||
je set_passes_limit
|
||||
cmp al,'P'
|
||||
je set_passes_limit
|
||||
cmp al,'r'
|
||||
je set_recursion_limit
|
||||
cmp al,'R'
|
||||
je set_recursion_limit
|
||||
cmp al,'v'
|
||||
je set_verbose_mode
|
||||
cmp al,'V'
|
||||
je set_verbose_mode
|
||||
cmp al,'n'
|
||||
je set_no_logo
|
||||
cmp al,'N'
|
||||
jne error_in_arguments
|
||||
set_no_logo:
|
||||
or [no_logo],-1
|
||||
cmp byte [esi],0
|
||||
je next_argument
|
||||
error_in_arguments:
|
||||
or al,-1
|
||||
ret
|
||||
set_verbose_mode:
|
||||
cmp byte [esi],0
|
||||
jne get_verbose_setting
|
||||
dec ecx
|
||||
jz error_in_arguments
|
||||
add ebx,4
|
||||
mov esi,[ebx]
|
||||
get_verbose_setting:
|
||||
call get_option_value
|
||||
cmp edx,2
|
||||
ja error_in_arguments
|
||||
mov [verbosity_level],edx
|
||||
jmp next_argument
|
||||
set_errors_limit:
|
||||
cmp byte [esi],0
|
||||
jne get_errors_setting
|
||||
dec ecx
|
||||
jz error_in_arguments
|
||||
add ebx,4
|
||||
mov esi,[ebx]
|
||||
get_errors_setting:
|
||||
call get_option_value
|
||||
test edx,edx
|
||||
jz error_in_arguments
|
||||
mov [maximum_number_of_errors],edx
|
||||
jmp next_argument
|
||||
set_recursion_limit:
|
||||
cmp byte [esi],0
|
||||
jne get_recursion_setting
|
||||
dec ecx
|
||||
jz error_in_arguments
|
||||
add ebx,4
|
||||
mov esi,[ebx]
|
||||
get_recursion_setting:
|
||||
call get_option_value
|
||||
test edx,edx
|
||||
jz error_in_arguments
|
||||
mov [maximum_depth_of_stack],edx
|
||||
jmp next_argument
|
||||
set_passes_limit:
|
||||
cmp byte [esi],0
|
||||
jne get_passes_setting
|
||||
dec ecx
|
||||
jz error_in_arguments
|
||||
add ebx,4
|
||||
mov esi,[ebx]
|
||||
get_passes_setting:
|
||||
call get_option_value
|
||||
test edx,edx
|
||||
jz error_in_arguments
|
||||
mov [maximum_number_of_passes],edx
|
||||
next_argument:
|
||||
add ebx,4
|
||||
dec ecx
|
||||
jnz get_argument
|
||||
cmp [source_path],0
|
||||
je error_in_arguments
|
||||
xor al,al
|
||||
ret
|
||||
get_option_value:
|
||||
xor eax,eax
|
||||
mov edx,eax
|
||||
find_option_value:
|
||||
cmp byte [esi],20h
|
||||
jne get_option_digit
|
||||
inc esi
|
||||
jmp find_option_value
|
||||
get_option_digit:
|
||||
lodsb
|
||||
test al,al
|
||||
jz option_value_ok
|
||||
sub al,30h
|
||||
jc invalid_option_value
|
||||
cmp al,9
|
||||
ja invalid_option_value
|
||||
imul edx,10
|
||||
jo invalid_option_value
|
||||
add edx,eax
|
||||
jc invalid_option_value
|
||||
jmp get_option_digit
|
||||
option_value_ok:
|
||||
dec esi
|
||||
clc
|
||||
ret
|
||||
invalid_option_value:
|
||||
stc
|
||||
ret
|
||||
insert_initial_command:
|
||||
cmp byte [esi],0
|
||||
jne measure_initial_command
|
||||
dec ecx
|
||||
jz error_in_arguments
|
||||
add ebx,4
|
||||
mov esi,[ebx]
|
||||
measure_initial_command:
|
||||
push ebx ecx edi
|
||||
mov edi,esi
|
||||
or ecx,-1
|
||||
xor al,al
|
||||
repne scasb
|
||||
not ecx
|
||||
dec ecx
|
||||
mov edi,[initial_commands]
|
||||
lea eax,[ecx+2]
|
||||
test edi,edi
|
||||
jz allocate_initial_commands_buffer
|
||||
mov edx,[initial_commands_length]
|
||||
add edi,edx
|
||||
add eax,edx
|
||||
cmp eax,[initial_commands_maximum_length]
|
||||
ja grow_initial_commands_buffer
|
||||
copy_initial_command:
|
||||
rep movsb
|
||||
mov ax,0Ah
|
||||
stosw
|
||||
dec edi
|
||||
sub edi,[initial_commands]
|
||||
mov [initial_commands_length],edi
|
||||
pop edi ecx ebx
|
||||
jmp next_argument
|
||||
allocate_initial_commands_buffer:
|
||||
push ecx
|
||||
mov ecx,eax
|
||||
call malloc
|
||||
mov [initial_commands],eax
|
||||
mov [initial_commands_maximum_length],ecx
|
||||
mov edi,eax
|
||||
pop ecx
|
||||
jmp copy_initial_command
|
||||
grow_initial_commands_buffer:
|
||||
push ecx
|
||||
mov ecx,eax
|
||||
mov eax,[initial_commands]
|
||||
call realloc
|
||||
mov [initial_commands],eax
|
||||
mov [initial_commands_maximum_length],ecx
|
||||
mov edi,eax
|
||||
add edi,[initial_commands_length]
|
||||
pop ecx
|
||||
jmp copy_initial_command
|
||||
|
||||
include 'system.inc'
|
||||
|
||||
include '../malloc.inc'
|
||||
include '../assembler.inc'
|
||||
include '../symbols.inc'
|
||||
include '../expressions.inc'
|
||||
include '../conditions.inc'
|
||||
include '../floats.inc'
|
||||
include '../directives.inc'
|
||||
include '../calm.inc'
|
||||
include '../errors.inc'
|
||||
include '../map.inc'
|
||||
include '../reader.inc'
|
||||
include '../output.inc'
|
||||
include '../console.inc'
|
||||
|
||||
segment readable
|
||||
|
||||
_logo db 'flat assembler version g.',VERSION,10,0
|
||||
|
||||
_usage db 'Usage: fasmg source [output]',10
|
||||
db 'Optional settings:',10
|
||||
db ' -p limit Set the maximum allowed number of passes (default 100)',10
|
||||
db ' -e limit Set the maximum number of displayed errors (default 1)',10
|
||||
db ' -r limit Set the maximum depth of the stack (default 10000)',10
|
||||
db ' -v flag Enable or disable showing all lines from the stack (default 0)',10
|
||||
db ' -i command Insert instruction at the beginning of source',13,10
|
||||
db ' -n Do not show logo nor summary',13,10
|
||||
db 0
|
||||
|
||||
_pass db ' pass, ',0
|
||||
_passes db ' passes, ',0
|
||||
_dot db '.'
|
||||
_seconds db ' seconds, ',0
|
||||
_byte db ' byte.',0
|
||||
_bytes db ' bytes.',0
|
||||
|
||||
_write_failed db 'failed to write the output file',0
|
||||
_out_of_memory db 'not enough memory to complete the assembly',0
|
||||
_code_cannot_be_generated db 'could not generate code within the allowed number of passes',0
|
||||
|
||||
_open_mode db 'r',0
|
||||
_create_mode db 'w',0
|
||||
|
||||
include '../tables.inc'
|
||||
include '../messages.inc'
|
||||
|
||||
segment readable writeable
|
||||
|
||||
align 16
|
||||
|
||||
include '../variables.inc'
|
||||
|
||||
align 16
|
||||
|
||||
timestamp dq ?
|
||||
|
||||
loff dq ?
|
||||
argc dd ?
|
||||
argv dd ?
|
||||
env dd ?
|
||||
|
||||
mmap_args rd 6
|
||||
malloc_freelist dd ?
|
||||
|
||||
source_path dd ?
|
||||
output_path dd ?
|
||||
maximum_number_of_passes dd ?
|
||||
|
||||
initial_commands dd ?
|
||||
initial_commands_length dd ?
|
||||
initial_commands_maximum_length dd ?
|
||||
|
||||
|
||||
start_time timeval
|
||||
end_time timeval
|
||||
tenths_of_second dd ?
|
||||
|
||||
verbosity_level dd ?
|
||||
no_logo db ?
|
||||
|
||||
path_buffer rb 1000h
|
||||
|
||||
segment readable writeable gnustack
|
||||
298
toolchain/fasm2/source/linux/system.inc
Normal file
298
toolchain/fasm2/source/linux/system.inc
Normal file
@ -0,0 +1,298 @@
|
||||
|
||||
LINE_FEED = 0Ah
|
||||
|
||||
O_ACCMODE = 0003o
|
||||
O_RDONLY = 0000o
|
||||
O_WRONLY = 0001o
|
||||
O_RDWR = 0002o
|
||||
O_CREAT = 0100o
|
||||
O_EXCL = 0200o
|
||||
O_NOCTTY = 0400o
|
||||
O_TRUNC = 1000o
|
||||
O_APPEND = 2000o
|
||||
O_NONBLOCK = 4000o
|
||||
|
||||
S_ISUID = 4000o
|
||||
S_ISGID = 2000o
|
||||
S_ISVTX = 1000o
|
||||
S_IRUSR = 0400o
|
||||
S_IWUSR = 0200o
|
||||
S_IXUSR = 0100o
|
||||
S_IRGRP = 0040o
|
||||
S_IWGRP = 0020o
|
||||
S_IXGRP = 0010o
|
||||
S_IROTH = 0004o
|
||||
S_IWOTH = 0002o
|
||||
S_IXOTH = 0001o
|
||||
|
||||
system_init:
|
||||
mov eax,13 ; sys_time
|
||||
mov ebx,timestamp
|
||||
int 0x80
|
||||
retn
|
||||
|
||||
system_shutdown:
|
||||
retn
|
||||
|
||||
open:
|
||||
; in: edx - path to file
|
||||
; out: ebx = file handle, cf set on error
|
||||
; preserves: esi, edi
|
||||
push esi edi ebp
|
||||
call adapt_path
|
||||
mov eax,5 ; sys_open
|
||||
mov ecx,O_RDONLY
|
||||
xor edx,edx
|
||||
int 0x80
|
||||
pop ebp edi esi
|
||||
test eax,eax
|
||||
js interface_error
|
||||
mov ebx,eax
|
||||
clc
|
||||
retn
|
||||
adapt_path:
|
||||
xor ecx,ecx
|
||||
mov ebx,path_buffer
|
||||
copy_path:
|
||||
mov al,[edx+ecx]
|
||||
cmp al,'\'
|
||||
jne path_char_ok
|
||||
mov al,'/'
|
||||
path_char_ok:
|
||||
cmp ecx,1000h
|
||||
jae out_of_memory
|
||||
mov [ebx+ecx],al
|
||||
inc ecx
|
||||
test al,al
|
||||
jnz copy_path
|
||||
retn
|
||||
interface_error:
|
||||
stc
|
||||
retn
|
||||
create:
|
||||
; in: edx - path to file
|
||||
; out: ebx = file handle, cf set on error
|
||||
; preserves: esi, edi
|
||||
push esi edi ebp
|
||||
call adapt_path
|
||||
mov eax,5 ; sys_open
|
||||
mov ecx,O_CREAT+O_TRUNC+O_WRONLY
|
||||
mov edx,S_IRUSR+S_IWUSR+S_IRGRP+S_IROTH
|
||||
int 0x80
|
||||
pop ebp edi esi
|
||||
test eax,eax
|
||||
js interface_error
|
||||
mov ebx,eax
|
||||
clc
|
||||
retn
|
||||
write:
|
||||
; in: ebx = file handle, edx - data, ecx = number of bytes
|
||||
; out: cf set on error
|
||||
; preserves: ebx, esi, edi
|
||||
push ebx ecx esi edi ebp
|
||||
mov eax,4 ; sys_write
|
||||
xchg ecx,edx
|
||||
int 0x80
|
||||
pop ebp edi esi ecx ebx
|
||||
test eax,eax
|
||||
js interface_error
|
||||
cmp eax,ecx
|
||||
jne interface_error
|
||||
clc
|
||||
ret
|
||||
read:
|
||||
; in: ebx = file handle, edx - buffer, ecx = number of bytes
|
||||
; out: cf set on error
|
||||
; preserves: ebx, esi, edi
|
||||
push ebx ecx esi edi ebp
|
||||
mov eax,3 ; sys_read
|
||||
xchg ecx,edx
|
||||
int 0x80
|
||||
pop ebp edi esi ecx ebx
|
||||
test eax,eax
|
||||
js interface_error
|
||||
cmp eax,ecx
|
||||
jne interface_error
|
||||
clc
|
||||
ret
|
||||
close:
|
||||
; in: ebx = file handle
|
||||
; preserves: ebx, esi, edi
|
||||
push ebx esi edi ebp
|
||||
mov eax,6 ; sys_close
|
||||
int 0x80
|
||||
pop ebp edi esi ebx
|
||||
ret
|
||||
lseek:
|
||||
; in: ebx = file handle, cl = method, edx:eax = offset
|
||||
; out: edx:eax = new offset from the beginning of file, cf set on error
|
||||
; preserves: ebx, esi, edi
|
||||
test edx,edx
|
||||
jnz interface_error
|
||||
push esi edi ebx ebp
|
||||
movzx edi,cl
|
||||
mov ecx,edx
|
||||
mov edx,eax
|
||||
mov eax,140 ; sys_llseek
|
||||
mov esi,loff
|
||||
int 0x80
|
||||
pop ebp ebx edi esi
|
||||
test eax,eax
|
||||
js interface_error
|
||||
mov eax,dword [loff]
|
||||
mov edx,dword [loff+4]
|
||||
clc
|
||||
ret
|
||||
|
||||
get_timestamp:
|
||||
; out: edx:eax = timestamp
|
||||
; preserves: ebx, ecx, esi, edi
|
||||
; note: during the passes of a single assembly this function should always return the same value
|
||||
mov eax,dword [timestamp]
|
||||
mov edx,dword [timestamp+4]
|
||||
retn
|
||||
|
||||
display_string:
|
||||
; in:
|
||||
; esi - string
|
||||
; ecx = string length, zero for ASCIIZ string
|
||||
; preserves: ebx, esi
|
||||
push ebx esi ebp
|
||||
test ecx,ecx
|
||||
jnz write_string_to_stdout
|
||||
xor al,al
|
||||
mov edi,esi
|
||||
or ecx,-1
|
||||
repne scasb
|
||||
neg ecx
|
||||
sub ecx,2
|
||||
write_string_to_stdout:
|
||||
mov eax,4 ; sys_write
|
||||
mov ebx,1
|
||||
mov edx,ecx
|
||||
mov ecx,esi
|
||||
int 0x80
|
||||
pop ebp esi ebx
|
||||
retn
|
||||
|
||||
display_error_string:
|
||||
; in:
|
||||
; esi - string
|
||||
; ecx = string length, zero for ASCIIZ string
|
||||
; preserves: ebx, esi
|
||||
push ebx esi ebp
|
||||
test ecx,ecx
|
||||
jnz write_string_to_stderr
|
||||
xor al,al
|
||||
mov edi,esi
|
||||
or ecx,-1
|
||||
repne scasb
|
||||
neg ecx
|
||||
sub ecx,2
|
||||
write_string_to_stderr:
|
||||
mov eax,4 ; sys_write
|
||||
mov ebx,2
|
||||
mov edx,ecx
|
||||
mov ecx,esi
|
||||
int 0x80
|
||||
pop ebp esi ebx
|
||||
retn
|
||||
|
||||
get_environment_variable:
|
||||
; in:
|
||||
; esi - name
|
||||
; edi - buffer for value
|
||||
; ecx = size of buffer
|
||||
; out:
|
||||
; eax = length of value
|
||||
; preserves: ebx, esi, edi
|
||||
push ebx ecx
|
||||
mov edx,[env]
|
||||
scan_environment:
|
||||
mov ebx,[edx]
|
||||
test ebx,ebx
|
||||
jz no_environment_variable
|
||||
xor ecx,ecx
|
||||
compare_character:
|
||||
mov al,[ebx+ecx]
|
||||
mov ah,[esi+ecx]
|
||||
inc ecx
|
||||
cmp al,'='
|
||||
je end_of_variable_name
|
||||
test ah,ah
|
||||
jz next_variable
|
||||
sub ah,al
|
||||
je compare_character
|
||||
cmp ah,20h
|
||||
jne next_variable
|
||||
cmp al,'A'
|
||||
jb next_variable
|
||||
cmp al,'Z'
|
||||
jna compare_character
|
||||
next_variable:
|
||||
add edx,4
|
||||
jmp scan_environment
|
||||
end_of_variable_name:
|
||||
test ah,ah
|
||||
jnz next_variable
|
||||
add ebx,ecx
|
||||
pop ecx
|
||||
xor eax,eax
|
||||
copy_environment_variable:
|
||||
mov dl,[ebx+eax]
|
||||
cmp eax,ecx
|
||||
jae next_environment_variable_character
|
||||
mov [edi+eax],dl
|
||||
next_environment_variable_character:
|
||||
inc eax
|
||||
test dl,dl
|
||||
jnz copy_environment_variable
|
||||
environment_variable_ok:
|
||||
pop ebx
|
||||
ret
|
||||
no_environment_variable:
|
||||
pop ecx
|
||||
mov eax,1
|
||||
jecxz environment_variable_ok
|
||||
and byte [edi],0
|
||||
pop ebx
|
||||
ret
|
||||
|
||||
VALLOC_MINIMUM_SIZE = 100000h
|
||||
|
||||
valloc:
|
||||
; in: ecx = requested minimum size
|
||||
; out: eax - allocated block, ecx = allocated size, zero if failed
|
||||
; preserves: ebx, esi, edi
|
||||
cmp ecx,VALLOC_MINIMUM_SIZE
|
||||
jbe valloc_size_minimum
|
||||
dec ecx
|
||||
and ecx,(-1) shl 12
|
||||
add ecx,1 shl 12
|
||||
jmp valloc_size_ready
|
||||
valloc_size_minimum:
|
||||
mov ecx,VALLOC_MINIMUM_SIZE
|
||||
valloc_size_ready:
|
||||
push ebx edi
|
||||
mov ebx,mmap_args
|
||||
mov edi,ebx
|
||||
xor eax,eax
|
||||
stosd
|
||||
mov eax,ecx
|
||||
stosd
|
||||
mov eax,3 ; PROT_READ + PROT_WRITE
|
||||
stosd
|
||||
mov eax,22h ; MAP_PRIVATE + MAP_ANONYMOUS
|
||||
stosd
|
||||
or eax,-1
|
||||
stosd
|
||||
xor eax,eax
|
||||
stosd
|
||||
mov eax,0x5A ; old_mmap
|
||||
int 0x80
|
||||
cmp eax,-1
|
||||
jne valloc_ok
|
||||
xor ecx,ecx
|
||||
valloc_ok:
|
||||
pop edi ebx
|
||||
retn
|
||||
79
toolchain/fasm2/source/linux/x64/32on64.alm
Normal file
79
toolchain/fasm2/source/linux/x64/32on64.alm
Normal file
@ -0,0 +1,79 @@
|
||||
|
||||
macro use32on64?
|
||||
|
||||
define esp rsp
|
||||
|
||||
define promote
|
||||
|
||||
iterate <reg32,reg64>, eax,rax, ebx,rbx, ecx,rcx, edx,rdx, esi,rsi, edi,rdi, esp,rsp, ebp,rbp
|
||||
promote.reg32? equ reg64
|
||||
end iterate
|
||||
|
||||
iterate instr, jmp,call
|
||||
calminstruction instr? arg
|
||||
local tmp
|
||||
match [tmp], arg
|
||||
jyes zero_extend
|
||||
transform arg, promote
|
||||
arrange tmp, =instr arg
|
||||
assemble tmp
|
||||
exit
|
||||
zero_extend:
|
||||
arrange tmp, =mov =r8d,[tmp]
|
||||
assemble tmp
|
||||
arrange tmp, =instr =r8
|
||||
assemble tmp
|
||||
end calminstruction
|
||||
end iterate
|
||||
|
||||
calminstruction push? arg
|
||||
local car, cdr
|
||||
match car cdr?, arg
|
||||
loop:
|
||||
transform car, promote
|
||||
jno non_reg
|
||||
arrange car, =push car
|
||||
assemble car
|
||||
match car cdr?, cdr
|
||||
jyes loop
|
||||
exit
|
||||
non_reg:
|
||||
arrange tmp, =mov =r8d,arg
|
||||
assemble tmp
|
||||
arrange tmp, =push =r8
|
||||
assemble tmp
|
||||
exit
|
||||
end calminstruction
|
||||
|
||||
calminstruction pop? arg
|
||||
local car, cdr
|
||||
match car cdr?, arg
|
||||
loop:
|
||||
transform car, promote
|
||||
jno non_reg
|
||||
arrange car, =pop car
|
||||
assemble car
|
||||
match car cdr?, cdr
|
||||
jyes loop
|
||||
exit
|
||||
non_reg:
|
||||
arrange tmp, =pop =r8
|
||||
assemble tmp
|
||||
arrange tmp, =mov arg,=r8d
|
||||
assemble tmp
|
||||
exit
|
||||
end calminstruction
|
||||
|
||||
macro jecxz? target
|
||||
if target-($+1) < 80h & target-($+1) >= -80h
|
||||
jecxz target
|
||||
else
|
||||
local j,k
|
||||
jecxz j
|
||||
jmp k
|
||||
j: jmp target
|
||||
k:
|
||||
end if
|
||||
end macro
|
||||
|
||||
end macro
|
||||
124
toolchain/fasm2/source/linux/x64/32on64.inc
Normal file
124
toolchain/fasm2/source/linux/x64/32on64.inc
Normal file
@ -0,0 +1,124 @@
|
||||
|
||||
macro use32on64
|
||||
{
|
||||
|
||||
define esp rsp
|
||||
|
||||
define promote.eax rax
|
||||
define promote.ebx rbx
|
||||
define promote.ecx rcx
|
||||
define promote.edx rdx
|
||||
define promote.esi rsi
|
||||
define promote.edi rdi
|
||||
define promote.ebp rbp
|
||||
define promote.esp rsp
|
||||
|
||||
macro push args
|
||||
\{
|
||||
local list,arg,status
|
||||
define list
|
||||
define arg
|
||||
irps sym, args \\{
|
||||
define status
|
||||
match =dword, sym \\\{
|
||||
define status :
|
||||
\\\}
|
||||
match [any, status arg sym \\\{
|
||||
define arg [any
|
||||
match [mem], arg \\\\{
|
||||
match previous, list \\\\\{ define list previous,[mem] \\\\\}
|
||||
match , list \\\\\{ define list [mem] \\\\\}
|
||||
define arg
|
||||
\\\\}
|
||||
define status :
|
||||
\\\}
|
||||
match [, status arg sym \\\{
|
||||
define arg [
|
||||
define status :
|
||||
\\\}
|
||||
match , status \\\{
|
||||
match previous, list \\\\{ define list previous,sym \\\\}
|
||||
match , list \\\\{ define list sym \\\\}
|
||||
\\\}
|
||||
\\}
|
||||
match ops,list \\{
|
||||
irp op, ops \\\{
|
||||
if op eqtype eax
|
||||
push promote.\\\#op
|
||||
else
|
||||
mov r8d,op
|
||||
push r8
|
||||
end if
|
||||
\\\}
|
||||
\\}
|
||||
\}
|
||||
|
||||
macro pop args
|
||||
\{
|
||||
local list,arg,status
|
||||
define list
|
||||
define arg
|
||||
irps sym, args \\{
|
||||
define status
|
||||
match =dword, sym \\\{
|
||||
define status :
|
||||
\\\}
|
||||
match [any, status arg sym \\\{
|
||||
define arg [any
|
||||
match [mem], arg \\\\{
|
||||
match previous, list \\\\\{ define list previous,[mem] \\\\\}
|
||||
match , list \\\\\{ define list [mem] \\\\\}
|
||||
define arg
|
||||
\\\\}
|
||||
define status :
|
||||
\\\}
|
||||
match [, status arg sym \\\{
|
||||
define arg [
|
||||
define status :
|
||||
\\\}
|
||||
match , status \\\{
|
||||
match previous, list \\\\{ define list previous,sym \\\\}
|
||||
match , list \\\\{ define list sym \\\\}
|
||||
\\\}
|
||||
\\}
|
||||
match ops,list \\{
|
||||
irp op, ops \\\{
|
||||
if op eqtype eax
|
||||
pop promote.\\\#op
|
||||
else
|
||||
pop r8
|
||||
mov op,r8d
|
||||
end if
|
||||
\\\}
|
||||
\\}
|
||||
\}
|
||||
|
||||
irp instr, jmp,call
|
||||
\{
|
||||
macro instr op
|
||||
\\{
|
||||
if op eqtype [0]
|
||||
mov r8d,op
|
||||
instr r8
|
||||
else if op eqtype 0
|
||||
instr op
|
||||
else
|
||||
instr promote.\\#op
|
||||
end if
|
||||
\\}
|
||||
\}
|
||||
|
||||
macro jecxz target
|
||||
\{
|
||||
if target-($+1) < 80h & target-($+1) >= -80h
|
||||
jecxz target
|
||||
else
|
||||
local j,k
|
||||
jecxz j
|
||||
jmp k
|
||||
j: jmp target
|
||||
k:
|
||||
end if
|
||||
\}
|
||||
|
||||
}
|
||||
546
toolchain/fasm2/source/linux/x64/fasmg.asm
Normal file
546
toolchain/fasm2/source/linux/x64/fasmg.asm
Normal file
@ -0,0 +1,546 @@
|
||||
|
||||
match ,{
|
||||
|
||||
include '32on64.inc'
|
||||
|
||||
} match -,{
|
||||
else
|
||||
|
||||
include '32on64.alm'
|
||||
|
||||
end match
|
||||
_ equ }
|
||||
|
||||
include 'macro/struct.inc'
|
||||
|
||||
format ELF64 executable 3
|
||||
entry start
|
||||
|
||||
include '../../version.inc'
|
||||
|
||||
struct timeval
|
||||
time_t dq ?
|
||||
suseconds_t dq ?
|
||||
ends
|
||||
|
||||
segment readable executable
|
||||
|
||||
start:
|
||||
|
||||
mov rcx,[rsp]
|
||||
mov [argc],rcx
|
||||
lea rbx,[rsp+8]
|
||||
mov [argv],rbx
|
||||
lea rsi,[rsp+8+rcx*8+8]
|
||||
mov [env],rsi
|
||||
|
||||
call system_init
|
||||
|
||||
call get_arguments
|
||||
mov bl,al
|
||||
cmp [no_logo],0
|
||||
jne logo_ok
|
||||
mov esi,_logo
|
||||
xor ecx,ecx
|
||||
call display_string
|
||||
logo_ok:
|
||||
test bl,bl
|
||||
jnz display_usage_information
|
||||
|
||||
xor al,al
|
||||
mov ecx,[verbosity_level]
|
||||
jecxz init
|
||||
or al,TRACE_ERROR_STACK
|
||||
dec ecx
|
||||
jz init
|
||||
or al,TRACE_DISPLAY
|
||||
init:
|
||||
call assembly_init
|
||||
|
||||
mov eax,96 ; sys_gettimeofday
|
||||
mov edi,start_time
|
||||
xor esi,esi
|
||||
syscall
|
||||
|
||||
assemble:
|
||||
mov esi,[initial_commands]
|
||||
mov edx,[source_path]
|
||||
call assembly_pass
|
||||
jc assembly_done
|
||||
|
||||
mov eax,[current_pass]
|
||||
cmp eax,[maximum_number_of_passes]
|
||||
jb assemble
|
||||
|
||||
call show_display_data
|
||||
|
||||
mov esi,_error_prefix
|
||||
xor ecx,ecx
|
||||
call display_error_string
|
||||
mov esi,_code_cannot_be_generated
|
||||
xor ecx,ecx
|
||||
call display_error_string
|
||||
mov esi,_message_suffix
|
||||
xor ecx,ecx
|
||||
call display_error_string
|
||||
|
||||
jmp assembly_failed
|
||||
|
||||
assembly_done:
|
||||
|
||||
call show_display_data
|
||||
|
||||
cmp [first_error],0
|
||||
jne assembly_failed
|
||||
|
||||
cmp [no_logo],0
|
||||
jne summary_done
|
||||
mov eax,[current_pass]
|
||||
xor edx,edx
|
||||
call itoa
|
||||
call display_string
|
||||
mov esi,_passes
|
||||
cmp [current_pass],1
|
||||
jne display_passes_suffix
|
||||
mov esi,_pass
|
||||
display_passes_suffix:
|
||||
xor ecx,ecx
|
||||
call display_string
|
||||
mov eax,96 ; sys_gettimeofday
|
||||
mov edi,end_time
|
||||
xor esi,esi
|
||||
syscall
|
||||
mov rax,[end_time.time_t]
|
||||
sub rax,[start_time.time_t]
|
||||
mov rcx,1000000
|
||||
mul rcx
|
||||
add rax,[end_time.suseconds_t]
|
||||
adc rdx,0
|
||||
sub rax,[start_time.suseconds_t]
|
||||
sbb rdx,0
|
||||
add rax,50000
|
||||
mov rcx,1000000
|
||||
div rcx
|
||||
mov rbx,rax
|
||||
mov rax,rdx
|
||||
xor rdx,rdx
|
||||
mov rcx,100000
|
||||
div rcx
|
||||
mov [tenths_of_second],eax
|
||||
xchg rax,rbx
|
||||
or rbx,rax
|
||||
jz display_output_length
|
||||
mov rdx,rax
|
||||
shr rdx,32
|
||||
call itoa
|
||||
call display_string
|
||||
mov esi,_message_suffix
|
||||
mov ecx,1
|
||||
call display_string
|
||||
mov eax,[tenths_of_second]
|
||||
xor edx,edx
|
||||
call itoa
|
||||
call display_string
|
||||
mov esi,_seconds
|
||||
xor ecx,ecx
|
||||
call display_string
|
||||
display_output_length:
|
||||
call get_output_length
|
||||
push rax rdx
|
||||
call itoa
|
||||
call display_string
|
||||
pop rdx rax
|
||||
mov esi,_bytes
|
||||
cmp eax,1
|
||||
jne display_bytes_suffix
|
||||
test edx,edx
|
||||
jnz display_bytes_suffix
|
||||
mov esi,_byte
|
||||
display_bytes_suffix:
|
||||
xor ecx,ecx
|
||||
call display_string
|
||||
mov esi,_new_line
|
||||
xor ecx,ecx
|
||||
call display_string
|
||||
summary_done:
|
||||
|
||||
mov ebx,[source_path]
|
||||
mov edi,[output_path]
|
||||
call write_output_file
|
||||
jc write_failed
|
||||
|
||||
call assembly_shutdown
|
||||
call system_shutdown
|
||||
|
||||
xor edi,edi ; exit code 0
|
||||
mov eax,60 ; sys_exit
|
||||
syscall
|
||||
|
||||
assembly_failed:
|
||||
|
||||
call show_errors
|
||||
|
||||
call assembly_shutdown
|
||||
call system_shutdown
|
||||
|
||||
mov edi,2
|
||||
mov eax,60 ; sys_exit
|
||||
syscall
|
||||
|
||||
write_failed:
|
||||
mov ebx,_write_failed
|
||||
jmp fatal_error
|
||||
|
||||
out_of_memory:
|
||||
mov ebx,_out_of_memory
|
||||
jmp fatal_error
|
||||
|
||||
fatal_error:
|
||||
|
||||
mov esi,_error_prefix
|
||||
xor ecx,ecx
|
||||
call display_error_string
|
||||
mov esi,ebx
|
||||
xor ecx,ecx
|
||||
call display_error_string
|
||||
mov esi,_message_suffix
|
||||
xor ecx,ecx
|
||||
call display_error_string
|
||||
|
||||
call assembly_shutdown
|
||||
call system_shutdown
|
||||
|
||||
mov edi,3
|
||||
mov eax,60 ; sys_exit
|
||||
syscall
|
||||
|
||||
internal_error:
|
||||
int3
|
||||
|
||||
display_usage_information:
|
||||
|
||||
mov esi,_usage
|
||||
xor ecx,ecx
|
||||
call display_string
|
||||
|
||||
call system_shutdown
|
||||
|
||||
mov edi,1
|
||||
mov eax,60 ; sys_exit
|
||||
syscall
|
||||
|
||||
get_arguments:
|
||||
xor eax,eax
|
||||
mov [initial_commands],eax
|
||||
mov [source_path],eax
|
||||
mov [output_path],eax
|
||||
mov [no_logo],al
|
||||
mov [verbosity_level],eax
|
||||
mov [maximum_number_of_passes],100
|
||||
mov [maximum_number_of_errors],1
|
||||
mov [maximum_depth_of_stack],10000
|
||||
mov rcx,[argc]
|
||||
mov rbx,[argv]
|
||||
add rbx,8
|
||||
dec ecx
|
||||
jz error_in_arguments
|
||||
get_argument:
|
||||
mov rsi,[rbx]
|
||||
mov al,[rsi]
|
||||
cmp al,'-'
|
||||
je get_option
|
||||
cmp [source_path],0
|
||||
jne get_output_file
|
||||
call strdup
|
||||
mov [source_path],eax
|
||||
jmp next_argument
|
||||
get_output_file:
|
||||
cmp [output_path],0
|
||||
jne error_in_arguments
|
||||
call strdup
|
||||
mov [output_path],eax
|
||||
jmp next_argument
|
||||
get_option:
|
||||
inc rsi
|
||||
lodsb
|
||||
cmp al,'e'
|
||||
je set_errors_limit
|
||||
cmp al,'E'
|
||||
je set_errors_limit
|
||||
cmp al,'i'
|
||||
je insert_initial_command
|
||||
cmp al,'I'
|
||||
je insert_initial_command
|
||||
cmp al,'p'
|
||||
je set_passes_limit
|
||||
cmp al,'P'
|
||||
je set_passes_limit
|
||||
cmp al,'r'
|
||||
je set_recursion_limit
|
||||
cmp al,'R'
|
||||
je set_recursion_limit
|
||||
cmp al,'v'
|
||||
je set_verbose_mode
|
||||
cmp al,'V'
|
||||
je set_verbose_mode
|
||||
cmp al,'n'
|
||||
je set_no_logo
|
||||
cmp al,'N'
|
||||
jne error_in_arguments
|
||||
set_no_logo:
|
||||
or [no_logo],-1
|
||||
cmp byte [rsi],0
|
||||
je next_argument
|
||||
error_in_arguments:
|
||||
or al,-1
|
||||
ret
|
||||
set_verbose_mode:
|
||||
cmp byte [rsi],0
|
||||
jne get_verbose_setting
|
||||
dec ecx
|
||||
jz error_in_arguments
|
||||
add rbx,8
|
||||
mov rsi,[rbx]
|
||||
get_verbose_setting:
|
||||
call get_option_value
|
||||
cmp edx,2
|
||||
ja error_in_arguments
|
||||
mov [verbosity_level],edx
|
||||
jmp next_argument
|
||||
set_errors_limit:
|
||||
cmp byte [rsi],0
|
||||
jne get_errors_setting
|
||||
dec ecx
|
||||
jz error_in_arguments
|
||||
add rbx,8
|
||||
mov rsi,[rbx]
|
||||
get_errors_setting:
|
||||
call get_option_value
|
||||
test edx,edx
|
||||
jz error_in_arguments
|
||||
mov [maximum_number_of_errors],edx
|
||||
jmp next_argument
|
||||
set_recursion_limit:
|
||||
cmp byte [rsi],0
|
||||
jne get_recursion_setting
|
||||
dec ecx
|
||||
jz error_in_arguments
|
||||
add rbx,8
|
||||
mov rsi,[rbx]
|
||||
get_recursion_setting:
|
||||
call get_option_value
|
||||
test edx,edx
|
||||
jz error_in_arguments
|
||||
mov [maximum_depth_of_stack],edx
|
||||
jmp next_argument
|
||||
set_passes_limit:
|
||||
cmp byte [rsi],0
|
||||
jne get_passes_setting
|
||||
dec ecx
|
||||
jz error_in_arguments
|
||||
add rbx,8
|
||||
mov rsi,[rbx]
|
||||
get_passes_setting:
|
||||
call get_option_value
|
||||
test edx,edx
|
||||
jz error_in_arguments
|
||||
mov [maximum_number_of_passes],edx
|
||||
next_argument:
|
||||
add rbx,8
|
||||
dec ecx
|
||||
jnz get_argument
|
||||
cmp [source_path],0
|
||||
je error_in_arguments
|
||||
xor al,al
|
||||
ret
|
||||
get_option_value:
|
||||
xor eax,eax
|
||||
mov edx,eax
|
||||
find_option_value:
|
||||
cmp byte [rsi],20h
|
||||
jne get_option_digit
|
||||
inc rsi
|
||||
jmp find_option_value
|
||||
get_option_digit:
|
||||
lodsb
|
||||
test al,al
|
||||
jz option_value_ok
|
||||
sub al,30h
|
||||
jc invalid_option_value
|
||||
cmp al,9
|
||||
ja invalid_option_value
|
||||
imul edx,10
|
||||
jo invalid_option_value
|
||||
add edx,eax
|
||||
jc invalid_option_value
|
||||
jmp get_option_digit
|
||||
option_value_ok:
|
||||
dec rsi
|
||||
clc
|
||||
ret
|
||||
invalid_option_value:
|
||||
stc
|
||||
ret
|
||||
insert_initial_command:
|
||||
cmp byte [rsi],0
|
||||
jne measure_initial_command
|
||||
dec ecx
|
||||
jz error_in_arguments
|
||||
add rbx,8
|
||||
mov rsi,[rbx]
|
||||
measure_initial_command:
|
||||
push rbx rcx rdi
|
||||
mov rdi,rsi
|
||||
or ecx,-1
|
||||
xor al,al
|
||||
repne scasb
|
||||
not ecx
|
||||
dec ecx
|
||||
mov edi,[initial_commands]
|
||||
lea eax,[ecx+2]
|
||||
test edi,edi
|
||||
jz allocate_initial_commands_buffer
|
||||
mov edx,[initial_commands_length]
|
||||
add edi,edx
|
||||
add eax,edx
|
||||
cmp eax,[initial_commands_maximum_length]
|
||||
ja grow_initial_commands_buffer
|
||||
copy_initial_command:
|
||||
rep movsb
|
||||
mov ax,0Ah
|
||||
stosw
|
||||
dec edi
|
||||
sub edi,[initial_commands]
|
||||
mov [initial_commands_length],edi
|
||||
pop rdi rcx rbx
|
||||
jmp next_argument
|
||||
allocate_initial_commands_buffer:
|
||||
push rsi rcx
|
||||
mov ecx,eax
|
||||
call malloc
|
||||
mov [initial_commands],eax
|
||||
mov [initial_commands_maximum_length],ecx
|
||||
mov edi,eax
|
||||
pop rcx rsi
|
||||
jmp copy_initial_command
|
||||
grow_initial_commands_buffer:
|
||||
push rsi rcx
|
||||
mov ecx,eax
|
||||
mov eax,[initial_commands]
|
||||
call realloc
|
||||
mov [initial_commands],eax
|
||||
mov [initial_commands_maximum_length],ecx
|
||||
mov edi,eax
|
||||
add edi,[initial_commands_length]
|
||||
pop rcx rsi
|
||||
jmp copy_initial_command
|
||||
|
||||
strdup:
|
||||
; in: rsi - ASCIIZ string
|
||||
; out: eax - copy of the string in 32-bit addressable memory
|
||||
; preserves: rbx, rcx, rsi
|
||||
push rbx rcx rsi
|
||||
mov rdi,rsi
|
||||
or ecx,-1
|
||||
xor al,al
|
||||
repne scasb
|
||||
not ecx
|
||||
push rsi rcx
|
||||
call malloc
|
||||
pop rcx rsi
|
||||
mov edi,eax
|
||||
rep movsb
|
||||
pop rsi rcx rbx
|
||||
ret
|
||||
|
||||
include 'system.inc'
|
||||
|
||||
use32on64
|
||||
|
||||
include '../../malloc.inc'
|
||||
include '../../assembler.inc'
|
||||
include '../../symbols.inc'
|
||||
include '../../expressions.inc'
|
||||
include '../../conditions.inc'
|
||||
include '../../floats.inc'
|
||||
include '../../directives.inc'
|
||||
include '../../calm.inc'
|
||||
include '../../errors.inc'
|
||||
include '../../map.inc'
|
||||
include '../../reader.inc'
|
||||
include '../../output.inc'
|
||||
include '../../console.inc'
|
||||
|
||||
segment readable
|
||||
|
||||
_logo db 'flat assembler version g.',VERSION,10,0
|
||||
|
||||
_usage db 'Usage: fasmg source [output]',10
|
||||
db 'Optional settings:',10
|
||||
db ' -p limit Set the maximum allowed number of passes (default 100)',10
|
||||
db ' -e limit Set the maximum number of displayed errors (default 1)',10
|
||||
db ' -r limit Set the maximum depth of the stack (default 10000)',10
|
||||
db ' -v flag Enable or disable showing all lines from the stack (default 0)',10
|
||||
db ' -i command Insert instruction at the beginning of source',13,10
|
||||
db ' -n Do not show logo nor summary',13,10
|
||||
db 0
|
||||
|
||||
_pass db ' pass, ',0
|
||||
_passes db ' passes, ',0
|
||||
_dot db '.'
|
||||
_seconds db ' seconds, ',0
|
||||
_byte db ' byte.',0
|
||||
_bytes db ' bytes.',0
|
||||
|
||||
_write_failed db 'failed to write the output file',0
|
||||
_out_of_memory db 'not enough memory to complete the assembly',0
|
||||
_code_cannot_be_generated db 'could not generate code within the allowed number of passes',0
|
||||
|
||||
include '../../tables.inc'
|
||||
include '../../messages.inc'
|
||||
|
||||
segment readable writeable
|
||||
|
||||
align 16
|
||||
|
||||
include '../../variables.inc'
|
||||
|
||||
align 16
|
||||
|
||||
timestamp dq ?
|
||||
|
||||
argc dq ?
|
||||
argv dq ?
|
||||
env dq ?
|
||||
|
||||
mmap_hint dd ?
|
||||
malloc_freelist dd ?
|
||||
|
||||
source_path dd ?
|
||||
output_path dd ?
|
||||
maximum_number_of_passes dd ?
|
||||
|
||||
initial_commands dd ?
|
||||
initial_commands_length dd ?
|
||||
initial_commands_maximum_length dd ?
|
||||
|
||||
start_time timeval
|
||||
end_time timeval
|
||||
tenths_of_second dd ?
|
||||
|
||||
verbosity_level dd ?
|
||||
no_logo db ?
|
||||
|
||||
local_heap_available db ?
|
||||
|
||||
path_buffer rb 1000h
|
||||
|
||||
segment readable writeable
|
||||
|
||||
align 1000h
|
||||
|
||||
LOCAL_HEAP_SIZE = 1000000h
|
||||
|
||||
local_heap rb LOCAL_HEAP_SIZE
|
||||
|
||||
segment readable writeable gnustack
|
||||
334
toolchain/fasm2/source/linux/x64/system.inc
Normal file
334
toolchain/fasm2/source/linux/x64/system.inc
Normal file
@ -0,0 +1,334 @@
|
||||
|
||||
LINE_FEED = 0Ah
|
||||
|
||||
O_ACCMODE = 0003o
|
||||
O_RDONLY = 0000o
|
||||
O_WRONLY = 0001o
|
||||
O_RDWR = 0002o
|
||||
O_CREAT = 0100o
|
||||
O_EXCL = 0200o
|
||||
O_NOCTTY = 0400o
|
||||
O_TRUNC = 1000o
|
||||
O_APPEND = 2000o
|
||||
O_NONBLOCK = 4000o
|
||||
|
||||
S_ISUID = 4000o
|
||||
S_ISGID = 2000o
|
||||
S_ISVTX = 1000o
|
||||
S_IRUSR = 0400o
|
||||
S_IWUSR = 0200o
|
||||
S_IXUSR = 0100o
|
||||
S_IRGRP = 0040o
|
||||
S_IWGRP = 0020o
|
||||
S_IXGRP = 0010o
|
||||
S_IROTH = 0004o
|
||||
S_IWOTH = 0002o
|
||||
S_IXOTH = 0001o
|
||||
|
||||
system_init:
|
||||
mov eax,201 ; sys_time
|
||||
mov edi,timestamp
|
||||
syscall
|
||||
or [local_heap_available],1
|
||||
retn
|
||||
|
||||
system_shutdown:
|
||||
call mcheck
|
||||
retn
|
||||
|
||||
open:
|
||||
; in: edx - path to file
|
||||
; out: ebx = file handle, cf set on error
|
||||
; preserves: esi, edi
|
||||
push rsi rdi
|
||||
call adapt_path
|
||||
mov eax,2 ; sys_open
|
||||
mov esi,O_RDONLY
|
||||
xor edx,edx
|
||||
syscall
|
||||
pop rdi rsi
|
||||
test eax,eax
|
||||
js interface_error
|
||||
mov ebx,eax
|
||||
clc
|
||||
ret
|
||||
interface_error:
|
||||
stc
|
||||
ret
|
||||
adapt_path:
|
||||
xor ecx,ecx
|
||||
mov edi,path_buffer
|
||||
copy_path:
|
||||
mov al,[edx+ecx]
|
||||
cmp al,'\'
|
||||
jne path_char_ok
|
||||
mov al,'/'
|
||||
path_char_ok:
|
||||
cmp ecx,1000h
|
||||
jae out_of_memory
|
||||
mov [edi+ecx],al
|
||||
inc ecx
|
||||
test al,al
|
||||
jnz copy_path
|
||||
retn
|
||||
create:
|
||||
; in: edx - path to file
|
||||
; out: ebx = file handle, cf set on error
|
||||
; preserves: esi, edi
|
||||
push rsi rdi
|
||||
call adapt_path
|
||||
mov esi,O_CREAT+O_TRUNC+O_WRONLY
|
||||
mov edx,S_IRUSR+S_IWUSR+S_IRGRP+S_IROTH
|
||||
mov eax,2 ; sys_open
|
||||
syscall
|
||||
pop rdi rsi
|
||||
test eax,eax
|
||||
js interface_error
|
||||
mov ebx,eax
|
||||
clc
|
||||
retn
|
||||
write:
|
||||
; in: ebx = file handle, edx - data, ecx = number of bytes
|
||||
; out: cf set on error
|
||||
; preserves: ebx, esi, edi
|
||||
push rsi rdi
|
||||
mov eax,1 ; sys_write
|
||||
mov edi,ebx
|
||||
mov esi,edx
|
||||
mov edx,ecx
|
||||
syscall
|
||||
pop rdi rsi
|
||||
test eax,eax
|
||||
js interface_error
|
||||
cmp eax,edx
|
||||
jne interface_error
|
||||
clc
|
||||
ret
|
||||
read:
|
||||
; in: ebx = file handle, edx - buffer, ecx = number of bytes
|
||||
; out: cf set on error
|
||||
; preserves: ebx, esi, edi
|
||||
push rsi rdi
|
||||
mov eax,0 ; sys_read
|
||||
mov edi,ebx
|
||||
mov esi,edx
|
||||
mov edx,ecx
|
||||
syscall
|
||||
pop rdi rsi
|
||||
test eax,eax
|
||||
js interface_error
|
||||
cmp eax,edx
|
||||
jne interface_error
|
||||
clc
|
||||
ret
|
||||
close:
|
||||
; in: ebx = file handle
|
||||
; preserves: ebx, esi, edi
|
||||
push rdi
|
||||
mov edi,ebx
|
||||
mov eax,3 ; sys_close
|
||||
syscall
|
||||
pop rdi
|
||||
ret
|
||||
lseek:
|
||||
; in: ebx = file handle, cl = method, edx:eax = offset
|
||||
; out: edx:eax = new offset from the beginning of file, cf set on error
|
||||
; preserves: ebx, esi, edi
|
||||
push rsi rdi
|
||||
mov edi,ebx
|
||||
mov esi,edx
|
||||
mov eax,eax
|
||||
shl rsi,32
|
||||
or rsi,rax
|
||||
xor edx,edx
|
||||
mov dl,cl
|
||||
mov eax,8 ; sys_lseek
|
||||
syscall
|
||||
pop rdi rsi
|
||||
cmp rax,-1
|
||||
je interface_error
|
||||
mov rdx,rax
|
||||
shr rdx,32
|
||||
clc
|
||||
ret
|
||||
|
||||
get_timestamp:
|
||||
; out: edx:eax = timestamp
|
||||
; preserves: ebx, ecx, esi, edi
|
||||
; note: during the passes of a single assembly this function should always return the same value
|
||||
mov eax,dword [timestamp]
|
||||
mov edx,dword [timestamp+4]
|
||||
retn
|
||||
|
||||
display_string:
|
||||
; in:
|
||||
; esi - string
|
||||
; ecx = string length, zero for ASCIIZ string
|
||||
; preserves: ebx, esi
|
||||
push rbx rsi rbp
|
||||
test ecx,ecx
|
||||
jnz write_string_to_stdout
|
||||
xor al,al
|
||||
mov edi,esi
|
||||
or ecx,-1
|
||||
repne scasb
|
||||
neg ecx
|
||||
sub ecx,2
|
||||
write_string_to_stdout:
|
||||
mov eax,1 ; sys_write
|
||||
mov edi,1
|
||||
mov edx,ecx
|
||||
syscall
|
||||
pop rbp rsi rbx
|
||||
retn
|
||||
|
||||
display_error_string:
|
||||
; in:
|
||||
; esi - string
|
||||
; ecx = string length, zero for ASCIIZ string
|
||||
; preserves: ebx, esi
|
||||
push rbx rsi rbp
|
||||
test ecx,ecx
|
||||
jnz write_string_to_stderr
|
||||
xor al,al
|
||||
mov edi,esi
|
||||
or ecx,-1
|
||||
repne scasb
|
||||
neg ecx
|
||||
sub ecx,2
|
||||
write_string_to_stderr:
|
||||
mov eax,1 ; sys_write
|
||||
mov edi,2
|
||||
mov edx,ecx
|
||||
syscall
|
||||
pop rbp rsi rbx
|
||||
retn
|
||||
|
||||
get_environment_variable:
|
||||
; in:
|
||||
; esi - name
|
||||
; edi - buffer for value
|
||||
; ecx = size of buffer
|
||||
; out:
|
||||
; eax = length of value
|
||||
; preserves: ebx, esi, edi
|
||||
push rbx rcx
|
||||
mov rdx,[env]
|
||||
scan_environment:
|
||||
mov rbx,[rdx]
|
||||
test rbx,rbx
|
||||
jz no_environment_variable
|
||||
xor ecx,ecx
|
||||
compare_character:
|
||||
mov al,[rbx+rcx]
|
||||
mov ah,[esi+ecx]
|
||||
inc ecx
|
||||
cmp al,'='
|
||||
je end_of_variable_name
|
||||
test ah,ah
|
||||
jz next_variable
|
||||
sub ah,al
|
||||
je compare_character
|
||||
cmp ah,20h
|
||||
jne next_variable
|
||||
cmp al,'A'
|
||||
jb next_variable
|
||||
cmp al,'Z'
|
||||
jna compare_character
|
||||
next_variable:
|
||||
add rdx,8
|
||||
jmp scan_environment
|
||||
end_of_variable_name:
|
||||
test ah,ah
|
||||
jnz next_variable
|
||||
add rbx,rcx
|
||||
pop rcx
|
||||
xor eax,eax
|
||||
copy_environment_variable:
|
||||
mov dl,[rbx+rax]
|
||||
cmp eax,ecx
|
||||
jae next_environment_variable_character
|
||||
mov [edi+eax],dl
|
||||
next_environment_variable_character:
|
||||
inc eax
|
||||
test dl,dl
|
||||
jnz copy_environment_variable
|
||||
environment_variable_ok:
|
||||
pop rbx
|
||||
ret
|
||||
no_environment_variable:
|
||||
pop rcx
|
||||
mov eax,1
|
||||
jecxz environment_variable_ok
|
||||
and byte [edi],0
|
||||
pop rbx
|
||||
ret
|
||||
|
||||
VALLOC_MINIMUM_SIZE = 100000h
|
||||
|
||||
valloc:
|
||||
; in: ecx = requested minimum size
|
||||
; out: eax - allocated block, ecx = allocated size, zero if failed
|
||||
; preserves: ebx, esi, edi
|
||||
cmp ecx,VALLOC_MINIMUM_SIZE
|
||||
jbe valloc_size_minimum
|
||||
dec ecx
|
||||
and ecx,(-1) shl 12
|
||||
add ecx,1 shl 12
|
||||
jmp valloc_size_ready
|
||||
valloc_size_minimum:
|
||||
mov ecx,VALLOC_MINIMUM_SIZE
|
||||
valloc_size_ready:
|
||||
push rbx rsi rdi
|
||||
cmp [local_heap_available],0
|
||||
je valloc_mmap
|
||||
cmp ecx,LOCAL_HEAP_SIZE
|
||||
ja valloc_mmap
|
||||
and [local_heap_available],0
|
||||
mov eax,local_heap
|
||||
mov ecx,LOCAL_HEAP_SIZE
|
||||
jmp valloc_ok
|
||||
valloc_mmap:
|
||||
xor r9d,r9d
|
||||
or r8,-1
|
||||
mov r10d,62h ; MAP_PRIVATE + MAP_ANONYMOUS + MAP_32BIT
|
||||
mov edx,3 ; PROT_READ + PROT_WRITE
|
||||
mov esi,ecx
|
||||
xor edi,edi
|
||||
mov eax,9 ; sys_mmap
|
||||
syscall
|
||||
cmp eax,-1
|
||||
je valloc_mmap_with_hint
|
||||
mov ecx,eax
|
||||
cmp rcx,rax
|
||||
jne valloc_mmap_unusable
|
||||
add ecx,esi
|
||||
jnc mmap_ok
|
||||
valloc_mmap_unusable:
|
||||
mov rdi,rax
|
||||
mov eax,11 ; sys_munmap
|
||||
syscall
|
||||
valloc_mmap_with_hint:
|
||||
mov r10d,22h ; MAP_PRIVATE + MAP_ANONYMOUS
|
||||
mov edx,3 ; PROT_READ + PROT_WRITE
|
||||
mov edi,[mmap_hint]
|
||||
mov eax,9 ; sys_mmap
|
||||
syscall
|
||||
cmp eax,-1
|
||||
je valloc_failed
|
||||
mov ecx,eax
|
||||
cmp rcx,rax
|
||||
jne valloc_failed
|
||||
add ecx,esi
|
||||
jc valloc_failed
|
||||
mmap_ok:
|
||||
sub ecx,eax
|
||||
valloc_ok:
|
||||
lea edx,[eax+ecx]
|
||||
mov [mmap_hint],edx
|
||||
pop rdi rsi rbx
|
||||
retn
|
||||
valloc_failed:
|
||||
xor ecx,ecx
|
||||
pop rdi rsi rbx
|
||||
retn
|
||||
Reference in New Issue
Block a user