forked from KolibriOS/kolibrios
462 lines
10 KiB
PHP
462 lines
10 KiB
PHP
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
;;;;;;;;;;;;;;;;;;;;;;;;; Working with program symbols ;;;;;;;;;;;;;;;;;;;;;;;;
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
include 'sort.inc'
|
|
|
|
; compare proc for sorter
|
|
compare:
|
|
cmpsd
|
|
jnz @f
|
|
cmp esi, edi
|
|
|
|
@@:
|
|
ret
|
|
|
|
; compare proc for sorter 2
|
|
compare2:
|
|
cmpsd
|
|
|
|
@@:
|
|
cmpsb
|
|
jnz @f
|
|
cmp byte [esi-1], 0
|
|
jnz @b
|
|
cmp esi, edi
|
|
|
|
@@:
|
|
ret
|
|
|
|
free_symbols:
|
|
mov ecx, [symbols]
|
|
jecxz @f
|
|
mcall 68, 13
|
|
and [symbols], 0
|
|
and [num_symbols], 0
|
|
|
|
@@:
|
|
ret
|
|
|
|
|
|
;-----------------------------------------------------------------------------
|
|
; Load symbols event
|
|
|
|
OnLoadSymbols.fileerr:
|
|
test ebp, ebp
|
|
jz @f
|
|
mcall 68, 13, edi
|
|
ret
|
|
|
|
@@:
|
|
push eax
|
|
mcall 68, 13, edi
|
|
mov esi, aCannotLoadFile
|
|
call put_message_nodraw
|
|
pop eax
|
|
cmp eax, 0x20
|
|
jae .unk
|
|
mov esi, [load_err_msgs + eax*4]
|
|
test esi, esi
|
|
jnz put_message
|
|
|
|
.unk:
|
|
mov esi, unk_err_msg2
|
|
jmp put_message
|
|
|
|
|
|
OnLoadSymbols:
|
|
xor ebp, ebp
|
|
; load input file
|
|
mov esi, [curarg]
|
|
call free_symbols
|
|
|
|
.silent:
|
|
; esi = ptr to symbols filename
|
|
xor edi, edi
|
|
cmp [num_symbols], edi ; Any previously loaded symbols?
|
|
je .loadfile
|
|
call free_symbols ; Yep, free them
|
|
|
|
.loadfile:
|
|
mov ebx, fn70_attr_block ; Get file attributes
|
|
mov [ebx+21], esi
|
|
mcall 70
|
|
test eax, eax
|
|
jnz .fileerr
|
|
cmp dword [fileattr+36], edi ; Is upper dword of filesize larger then 0?
|
|
jnz .memerr
|
|
mov ecx, dword [fileattr+32] ; Lower dword of filesize
|
|
mcall 68, 12 ; allocate the memory
|
|
test eax, eax
|
|
jz .memerr
|
|
mov edi, eax
|
|
mov ebx, fn70_read_block
|
|
mov [ebx+12], ecx
|
|
mov [ebx+16], edi
|
|
mov [ebx+21], esi
|
|
mcall 70 ; Read the file into the allocated buffer
|
|
test eax, eax
|
|
jnz .fileerr
|
|
|
|
|
|
; calculate memory requirements to load debug symbols
|
|
|
|
lea edx, [ecx+edi-1] ; edx = EOF-1
|
|
mov esi, edi
|
|
xor ecx, ecx
|
|
|
|
mov [symbol_section], 1 ;;;;;
|
|
|
|
.calcloop:
|
|
cmp esi, edx
|
|
jae .calcdone
|
|
cmp byte[esi], ' ' ; skip spaces at the beginning of a line
|
|
jne .not_space
|
|
inc esi
|
|
jmp .calcloop
|
|
.not_space:
|
|
cmp byte[esi], '.'
|
|
jne .not_section
|
|
inc esi
|
|
mov [symbol_section], 0
|
|
cmp dword[esi], 'text'
|
|
je .section_ok
|
|
cmp dword[esi], 'data'
|
|
je .section_ok
|
|
cmp dword[esi], 'bss '
|
|
jne .skipline
|
|
.section_ok:
|
|
inc [symbol_section]
|
|
jmp .skipline
|
|
.not_section:
|
|
cmp [symbol_section], 0
|
|
je .skipline
|
|
|
|
cmp word[esi], '0x'
|
|
jne .skipline
|
|
inc esi
|
|
inc esi
|
|
|
|
@@:
|
|
cmp esi, edx
|
|
jae .calcdone
|
|
lodsb
|
|
or al, 20h
|
|
sub al, '0'
|
|
cmp al, 9
|
|
jbe @b
|
|
sub al, 'a'-'0'-10
|
|
cmp al, 15
|
|
jbe @b
|
|
dec esi
|
|
|
|
@@:
|
|
cmp esi, edx
|
|
ja .calcdone
|
|
lodsb
|
|
cmp al, 20h
|
|
je @b
|
|
jb .calcloop
|
|
cmp al, 9
|
|
jz @b
|
|
add ecx, 12+1
|
|
inc [num_symbols]
|
|
|
|
@@:
|
|
inc ecx
|
|
cmp esi, edx
|
|
ja .calcdone
|
|
lodsb
|
|
cmp al, 0xD
|
|
jz .calcloop
|
|
cmp al, 0xA
|
|
jz .calcloop
|
|
jmp @b
|
|
|
|
.skipline:
|
|
cmp esi, edx
|
|
jae .calcdone
|
|
lodsb
|
|
cmp al, 0xD
|
|
jz .calcloop
|
|
cmp al, 0xA
|
|
jz .calcloop
|
|
jmp .skipline
|
|
|
|
.calcdone:
|
|
|
|
; Allocate memory to place the debug symbols in
|
|
|
|
mcall 68, 12
|
|
test eax, eax
|
|
jnz .memok
|
|
inc ebx
|
|
mov ecx, edi
|
|
mov al, 68
|
|
mcall
|
|
|
|
.memerr:
|
|
mov esi, aNoMemory
|
|
jmp put_message
|
|
|
|
.memok:
|
|
mov [symbols], eax
|
|
mov ebx, eax
|
|
push edi
|
|
mov esi, edi
|
|
mov edi, [num_symbols]
|
|
lea ebp, [eax+edi*4]
|
|
lea edi, [eax+edi*8]
|
|
|
|
; Actual loading of the debug symbols
|
|
; esi->input, edx->EOF, ebx->ptrs, edi->names
|
|
|
|
mov [symbol_section], 1 ;;;;;
|
|
|
|
.readloop:
|
|
cmp esi, edx
|
|
jae .readdone
|
|
cmp byte[esi], ' '
|
|
jne .not_space2
|
|
inc esi
|
|
jmp .readloop
|
|
.not_space2:
|
|
cmp byte[esi], '.'
|
|
jne .not_section2
|
|
inc esi
|
|
mov [symbol_section], 0
|
|
cmp dword[esi], 'text'
|
|
je .section_ok2
|
|
cmp dword[esi], 'data'
|
|
je .section_ok2
|
|
cmp dword[esi], 'bss '
|
|
jne .readline
|
|
.section_ok2:
|
|
inc [symbol_section]
|
|
jmp .readline
|
|
.not_section2:
|
|
cmp [symbol_section], 0
|
|
je .readline
|
|
|
|
cmp word[esi], '0x'
|
|
jnz .readline
|
|
inc esi
|
|
inc esi
|
|
xor eax, eax
|
|
xor ecx, ecx
|
|
|
|
@@:
|
|
shl ecx, 4
|
|
add ecx, eax
|
|
cmp esi, edx
|
|
jae .readdone
|
|
lodsb
|
|
or al, 20h
|
|
sub al, '0'
|
|
cmp al, 9
|
|
jbe @b
|
|
sub al, 'a'-'0'-10
|
|
cmp al, 15
|
|
jbe @b
|
|
dec esi
|
|
|
|
@@:
|
|
cmp esi, edx
|
|
ja .readdone
|
|
lodsb
|
|
cmp al, 20h
|
|
jz @b
|
|
jb .readloop
|
|
cmp al, 9
|
|
jz @b
|
|
mov dword [ebx], edi
|
|
add ebx, 4
|
|
mov dword [ebp], edi
|
|
add ebp, 4
|
|
mov dword [edi], ecx
|
|
add edi, 4
|
|
stosb
|
|
|
|
@@:
|
|
xor eax, eax
|
|
stosb
|
|
cmp esi, edx
|
|
ja .readdone
|
|
lodsb
|
|
cmp al, 0xD
|
|
jz .readloop
|
|
cmp al, 0xA
|
|
jz .readloop
|
|
mov byte [edi-1], al
|
|
jmp @b
|
|
|
|
.readline:
|
|
cmp esi, edx
|
|
jae .readdone
|
|
lodsb
|
|
cmp al, 0xD
|
|
jz .readloop
|
|
cmp al, 0xA
|
|
jz .readloop
|
|
jmp .readline
|
|
|
|
.readdone:
|
|
pop ecx
|
|
mcall 68, 13
|
|
mov ecx, [num_symbols]
|
|
mov edx, [symbols]
|
|
mov ebx, compare
|
|
call sort
|
|
mov ecx, [num_symbols]
|
|
lea edx, [edx+ecx*4]
|
|
mov ebx, compare2
|
|
call sort
|
|
mov esi, aSymbolsLoaded
|
|
call put_message
|
|
jmp draw_disasm.redraw
|
|
|
|
;-----------------------------------------------------------------------------
|
|
;
|
|
; in: EAX = address
|
|
; out: ESI, CF
|
|
|
|
find_symbol:
|
|
cmp [num_symbols], 0
|
|
jnz @f
|
|
|
|
.ret0:
|
|
xor esi, esi
|
|
stc
|
|
ret
|
|
|
|
@@:
|
|
push ebx ecx edx
|
|
xor edx, edx
|
|
mov esi, [symbols]
|
|
mov ecx, [num_symbols]
|
|
mov ebx, [esi]
|
|
cmp [ebx], eax
|
|
jz .donez
|
|
jb @f
|
|
pop edx ecx ebx
|
|
jmp .ret0
|
|
|
|
@@:
|
|
; invariant: symbols_addr[edx] < eax < symbols_addr[ecx]
|
|
; TODO: add meaningful label names
|
|
.0:
|
|
push edx
|
|
|
|
.1:
|
|
add edx, ecx
|
|
sar edx, 1
|
|
cmp edx, [esp]
|
|
jz .done2
|
|
mov ebx, [esi+edx*4]
|
|
cmp [ebx], eax
|
|
jz .done
|
|
ja .2
|
|
mov [esp], edx
|
|
jmp .1
|
|
|
|
.2:
|
|
mov ecx, edx
|
|
pop edx
|
|
jmp .0
|
|
|
|
.donecont:
|
|
dec edx
|
|
|
|
.done:
|
|
test edx, edx
|
|
jz @f
|
|
mov ebx, [esi+edx*4-4]
|
|
cmp [ebx], eax
|
|
jz .donecont
|
|
|
|
@@:
|
|
pop ecx
|
|
|
|
.donez:
|
|
mov esi, [esi+edx*4]
|
|
add esi, 4
|
|
pop edx ecx ebx
|
|
clc
|
|
ret
|
|
|
|
.done2:
|
|
lea esi, [esi+edx*4]
|
|
pop ecx edx ecx ebx
|
|
stc
|
|
ret
|
|
|
|
;-----------------------------------------------------------------------------
|
|
;
|
|
; in: esi->name
|
|
; out: if found: CF = 0, EAX = value
|
|
; otherwise CF = 1
|
|
find_symbol_name:
|
|
cmp [num_symbols], 0
|
|
jnz @f
|
|
|
|
.stc_ret:
|
|
stc
|
|
ret
|
|
|
|
@@:
|
|
push ebx ecx edx edi
|
|
push -1
|
|
pop edx
|
|
mov ebx, [symbols]
|
|
mov ecx, [num_symbols]
|
|
lea ebx, [ebx+ecx*4]
|
|
|
|
; invariant: symbols_name[edx] < name < symbols_name[ecx]
|
|
.0:
|
|
push edx
|
|
|
|
.1:
|
|
add edx, ecx
|
|
sar edx, 1
|
|
cmp edx, [esp]
|
|
jz .done2
|
|
call .cmp
|
|
jz .done
|
|
jb .2
|
|
mov [esp], edx
|
|
jmp .1
|
|
|
|
.2:
|
|
mov ecx, edx
|
|
pop edx
|
|
jmp .0
|
|
|
|
.done:
|
|
pop ecx
|
|
|
|
.donez:
|
|
mov eax, [ebx+edx*4]
|
|
mov eax, [eax]
|
|
pop edi edx ecx ebx
|
|
clc
|
|
ret
|
|
|
|
.done2:
|
|
pop edx edi edx ecx ebx
|
|
stc
|
|
ret
|
|
|
|
.cmp:
|
|
mov edi, [ebx+edx*4]
|
|
push esi
|
|
add edi, 4
|
|
|
|
@@:
|
|
cmpsb
|
|
jnz @f
|
|
cmp byte [esi-1], 0
|
|
jnz @b
|
|
|
|
@@:
|
|
pop esi
|
|
ret |