forked from KolibriOS/kolibrios
Now, if you restart the program, it will be reloaded symbols
git-svn-id: svn://kolibrios.org@3675 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
GerdtR
parent
f828457410
commit
11e927c0c3
38
programs/develop/mtdbg/README
Normal file
38
programs/develop/mtdbg/README
Normal file
@ -0,0 +1,38 @@
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Description
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===========
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Kolibri debugger - simple user mode debugger
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TODO
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====
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See inline 'TODO' comments
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Also long term goals:
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1. Commands history and navigation
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2. Command autocompletion
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3. Save memory block into file
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4. Gdb remote protocol support (gdb-stub)
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5. Live assembly
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6. Improve disassembly engine
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7. Split out context handling and kernel interface
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8. Split out commands handler and tables in cmd.inc
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8. Restrurize and refactor data section
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9. Add disassembler listing export into file
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10. Record trace log
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11. Improve FPU/MMX/SSE/AVX debugging
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12. Document disassembly engine deeply
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13. Add tips for insufficient code sequences
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Hacking
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=======
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If you want improve or change some features see files description:
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1. mtdbg.asm - Main loop, events handling, data container
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2. gui.inc - GUI implementation
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3. disasm.inc - Disassembler engine
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4. disasm_tbl.inc - Instruction tables for disassembler engine
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5. parser.inc - Parser and evaluator of expressions
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101
programs/develop/mtdbg/cmd.inc
Normal file
101
programs/develop/mtdbg/cmd.inc
Normal file
@ -0,0 +1,101 @@
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; TODO: add both visual and command modes
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; scan and build command line
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scan_cmdline:
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pusha
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cmp [cmdline_len], cmdline_width
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jae waitevent
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push eax
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call clear_cmdline_end
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pop eax
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mov edi, cmdline
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mov ecx, [cmdline_len]
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add edi, ecx
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lea esi, [edi-1]
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sub ecx, [cmdline_pos]
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std
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rep movsb
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cld
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stosb
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inc [cmdline_len]
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call draw_cmdline_end
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inc [cmdline_pos]
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call draw_cursor
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jmp waitevent
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.backspace:
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cmp [cmdline_pos], 0
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jz waitevent
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dec [cmdline_pos]
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.delchar:
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call clear_cmdline_end
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mov edi, [cmdline_pos]
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dec [cmdline_len]
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mov ecx, [cmdline_len]
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sub ecx, edi
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add edi, cmdline
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lea esi, [edi+1]
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rep movsb
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call draw_cmdline_end
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call draw_cursor
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jmp waitevent
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.del:
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mov eax, [cmdline_pos]
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cmp eax, [cmdline_len]
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jae waitevent
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jmp .delchar
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.left:
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cmp [cmdline_pos], 0
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jz waitevent
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call hide_cursor
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dec [cmdline_pos]
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call draw_cursor
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jmp waitevent
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.right:
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mov eax, [cmdline_pos]
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cmp eax, [cmdline_len]
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jae waitevent
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call hide_cursor
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inc [cmdline_pos]
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call draw_cursor
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jmp waitevent
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.home:
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call hide_cursor
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and [cmdline_pos], 0
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call draw_cursor
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jmp waitevent
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.end:
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call hide_cursor
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mov eax, [cmdline_len]
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mov [cmdline_pos], eax
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call draw_cursor
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.up:
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.down:
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jmp waitevent
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;; We also trying to execute previous command, if empty command_line
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.enter:
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mov ecx, [cmdline_len]
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cmp ecx, 0
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jg .exec_cur
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mov cl, byte [cmdline_prev]
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cmp cl, 0
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jz waitevent
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.exec_prev:
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mov esi, cmdline_prev
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jmp .exec
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.exec_cur:
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mov esi, cmdline
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.exec:
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mov byte [esi+ecx], 0
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and [cmdline_pos], 0
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push esi
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call clear_cmdline_end
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call draw_cursor
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pop esi
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and [cmdline_len], 0
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; skip leading spaces
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call skip_spaces
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cmp al, 0
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jz waitevent
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; vim: ft= fasm
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2768
programs/develop/mtdbg/disasm.inc
Normal file
2768
programs/develop/mtdbg/disasm.inc
Normal file
File diff suppressed because it is too large
Load Diff
70
programs/develop/mtdbg/disasm_tbl.inc
Normal file
70
programs/develop/mtdbg/disasm_tbl.inc
Normal file
@ -0,0 +1,70 @@
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disasm_table_1:
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dd cop22, cop22, cop22, cop22, cop21, cop21, cop0, cop0 ; 0x
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dd cop22, cop22, cop22, cop22, cop21, cop21, cop0, cF
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dd cop22, cop22, cop22, cop22, cop21, cop21, cop0, cop0 ; 1x
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dd cop22, cop22, cop22, cop22, cop21, cop21, cop0, cop0
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dd cop22, cop22, cop22, cop22, cop21, cop21, cseges,cop0 ; 2x
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dd cop22, cop22, cop22, cop22, cop21, cop21, csegcs,cop0
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dd cop22, cop22, cop22, cop22, cop21, cop21, csegss,cop0 ; 3x
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dd cop22, cop22, cop22, cop22, cop21, cop21, csegds,cop0
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dd cinc1, cinc1, cinc1, cinc1, cinc1, cinc1, cinc1, cinc1 ; 4x
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dd cdec1, cdec1, cdec1, cdec1, cdec1, cdec1, cdec1, cdec1
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dd cpush1,cpush1,cpush1,cpush1,cpush1,cpush1,cpush1,cpush1 ; 5x
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dd cpop1, cpop1, cpop1, cpop1, cpop1, cpop1, cpop1, cpop1
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dd cop0, cop0, cbound,carpl, csegfs,cseggs,c66, c67 ; 6x
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dd cpush21,cimul1,cpush22,cimul1,cunk,cunk, cunk, cunk
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dd cjcc1, cjcc1, cjcc1, cjcc1, cjcc1, cjcc1, cjcc1, cjcc1 ; 7x
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dd cjcc1, cjcc1, cjcc1, cjcc1, cjcc1, cjcc1, cjcc1, cjcc1
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dd cop23, cop23, cop23, cop23, cop22, cop22, cop22, cop22 ; 8x
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dd cop22, cop22, cop22, cop22, cunk, cop22, cunk, cpop2
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dd cop0, cxchg1,cxchg1,cxchg1,cxchg1,cxchg1,cxchg1,cxchg1 ; 9x
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dd ccbw, ccwd, ccallf,cop0, cop0, cop0, cop0, cop0
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dd cmov3, cmov3, cmov3, cmov3, cop0, cop0, cop0, cop0 ; Ax
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dd cop21, cop21, cop0, cop0, cop0, cop0, cop0, cop0
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dd cmov11,cmov11,cmov11,cmov11,cmov11,cmov11,cmov11,cmov11 ; Bx
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dd cmov12,cmov12,cmov12,cmov12,cmov12,cmov12,cmov12,cmov12
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dd cshift1,cshift1,cret2,cop0, cunk, cunk, cmov2, cmov2 ; Cx
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dd center,cop0, cunk, cunk, cop0, cint, cunk, cunk
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dd cshift2,cshift2,cshift3,cshift3,caam,caad,cunk, cxlat ; Dx
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dd cD8, cD9, cDA, cDB, cDC, cDD, cDE, cDF
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dd cloopnz,cloopz,cloop,cjcxz, cunk, cunk, cunk, cunk ; Ex
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dd ccall1,cjmp1, cunk, cjmp2, cunk, cunk, cunk, cunk
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dd clock, cunk, crepnz,crep, cunk, cop0, cop1, cop1 ; Fx
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dd cop0, cop0, cop0, cop0, cop0, cop0, cop1, cop1
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disasm_table_2:
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dd cunk, cunk, cunk, cunk, cunk, cop0_F,cop0_F,cunk ; 0x
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dd cunk, cunk, cunk, cunk, cunk, cunk, cunk, cunk
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dd cunk, cunk, cunk, cunk, cunk, cunk, cunk, cunk ; 1x
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dd cunk, cunk, cunk, cunk, cunk, cunk, cunk, cunk
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dd cunk, cunk, cunk, cunk, cunk, cunk, cunk, cunk ; 2x
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dd cunk, cunk, cunk, cunk, cunk, cunk, cunk, csse1
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dd cunk, crdtsc,cunk, cunk, cop0_F,cunk, cunk, cunk ; 3x
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dd cunk, cunk, cunk, cunk, cunk, cunk, cunk, cunk
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dd cmovcc,cmovcc,cmovcc,cmovcc,cmovcc,cmovcc,cmovcc,cmovcc ; 4x
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dd cmovcc,cmovcc,cmovcc,cmovcc,cmovcc,cmovcc,cmovcc,cmovcc
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dd cunk, cunk, cunk, cunk, csse1, csse1, cunk, cunk ; 5x
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dd csse1, cunk, cunk, cunk, cunk, cunk, cunk, cunk
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dd cpcmn, cpcmn, cpcmn, cpcmn, cpcmn, cpcmn, cpcmn, cpcmn ; 6x
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dd cpcmn, cpcmn, cpcmn, cpcmn, cunk, cunk, cmovd1,cmovq1
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dd cunk, cpshift,cpshift,cpshift,cpcmn,cpcmn,cpcmn,cemms ; 7x
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dd cunk, cunk, cunk, cunk, cunk, cunk, cmovd2,cmovq2
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dd cjcc2, cjcc2, cjcc2, cjcc2, cjcc2, cjcc2, cjcc2, cjcc2 ; 8x
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dd cjcc2, cjcc2, cjcc2, cjcc2, cjcc2, cjcc2, cjcc2, cjcc2
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dd csetcc,csetcc,csetcc,csetcc,csetcc,csetcc,csetcc,csetcc ; 9x
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dd csetcc,csetcc,csetcc,csetcc,csetcc,csetcc,csetcc,csetcc
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dd cunk, cunk, ccpuid,cbtx2, cshld, cshld, cunk, cunk ; Ax
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dd cunk, cunk, cunk, cbtx2, cshrd, cshrd, cgrp15,cop22
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dd ccmpxchg,ccmpxchg,cunk,cbtx2,cunk, cunk, cmovzx,cmovzx ; Bx
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dd cunk, cunk, cbtx1, cbtx2, cbsf, cbsr, cmovsx,cmovsx
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dd cunk, cunk, csse1, cunk, cunk, cunk, cunk, ccmpxchg8b ; Cx
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dd cbswap,cbswap,cbswap,cbswap,cbswap,cbswap,cbswap,cbswap
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dd csse2, cpsrlw,cpsrlw,cpsrlq,cpcmn, cpcmn, cunk, cunk ; Dx
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dd cpcmn, cpcmn, cpcmn, cpcmn, cpcmn, cpcmn, cpcmn, cpcmn
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dd cpcmn, cpsraw,cpsrad,cpcmn, cpcmn, cpcmn, cunk, cunk ; Ex
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dd cpcmn, cpcmn, cpcmn, cpcmn, cpcmn, cpcmn, cpcmn, cpcmn
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dd cunk, cpsllw,cpslld,cpsllq,cpcmn, cpcmn, cpcmn, cunk ; Fx
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dd cpcmn, cpcmn, cpcmn, cpcmn, cpcmn, cpcmn, cpcmn, cunk
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; vim: ft=fasm tabstop=4
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1647
programs/develop/mtdbg/gui.inc
Normal file
1647
programs/develop/mtdbg/gui.inc
Normal file
File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
403
programs/develop/mtdbg/parser.inc
Normal file
403
programs/develop/mtdbg/parser.inc
Normal file
@ -0,0 +1,403 @@
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;; EXPRESSION PARSER ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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token_end equ 1
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token_reg equ 2
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token_hex equ 3
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token_add equ 4
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token_sub equ 5
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token_mul equ 6
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token_div equ 7
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token_lp equ 8
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token_rp equ 9
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token_err equ -1
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;-----------------------------------------------------------------------------
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; Check if byte - some kind of instruction prefix
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is_prefix:
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cmp al, 0x64 ; fs:
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jz .ret
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cmp al, 0x65 ; gs:
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jz .ret
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cmp al, 0x66 ; use16/32
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jz .ret
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cmp al, 0x67 ; addr16/32
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jz .ret
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cmp al, 0xF0 ; lock
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jz .ret
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cmp al, 0xF2 ; repnz
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jz .ret
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cmp al, 0xF3 ; rep(z)
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jz .ret
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cmp al, 0x2E ; cs:
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jz .ret
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cmp al, 0x36 ; ss:
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jz .ret
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cmp al, 0x3E ; ds:
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jz .ret
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cmp al, 0x26 ; es:
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.ret:
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ret
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;-----------------------------------------------------------------------------
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; Check if byte is hex digit
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is_hex_digit:
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cmp al, '0'
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jb .no
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cmp al, '9'
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jbe .09
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cmp al, 'A'
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jb .no
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cmp al, 'F'
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jbe .AF
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cmp al, 'a'
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jb .no
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cmp al, 'f'
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jbe .af
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.no:
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stc
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ret
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.09:
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sub al, '0'
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; clc
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ret
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.AF:
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sub al, 'A'-10
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; clc
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ret
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.af:
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sub al, 'a'-10
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; clc
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ret
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;-----------------------------------------------------------------------------
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; Find register in the table
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find_reg:
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mov edi, reg_table
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.findreg:
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movzx ecx, byte [edi]
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stc
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jecxz .regnotfound
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inc edi
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push esi edi ecx
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@@:
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lodsb
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or al, 20h
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scasb
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loopz @b
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pop ecx edi esi
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lea edi, [edi+ecx+1]
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jnz .findreg
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movzx edi, byte [edi-1]
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add esi, ecx
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.regnotfound:
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ret
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;-----------------------------------------------------------------------------
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; Tokenize expressions
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expr_get_token:
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lodsb
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cmp al, 0
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jz .end_token
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cmp al, ' '
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jbe expr_get_token
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cmp al, '+'
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jz .add
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cmp al, '-'
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jz .sub
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cmp al, '*'
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jz .mul
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cmp al, '/'
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jz .div
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cmp al, '('
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jz .lp
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cmp al, ')'
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jnz .notsign
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.rp:
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mov al, token_rp
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ret
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.div:
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mov al, token_div
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ret
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||||
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||||
.end_token:
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||||
mov al, token_end
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||||
ret
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||||
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||||
.add:
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mov al, token_add
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ret
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||||
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.sub:
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mov al, token_sub
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ret
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||||
|
||||
.mul:
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mov al, token_mul
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||||
ret
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||||
|
||||
.lp:
|
||||
mov al, token_lp
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||||
ret
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||||
|
||||
.notsign:
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dec esi
|
||||
call find_reg
|
||||
jc .regnotfound
|
||||
mov al, token_reg
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||||
ret
|
||||
|
||||
.regnotfound:
|
||||
; test for symbol
|
||||
push esi
|
||||
|
||||
@@:
|
||||
lodsb
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cmp al, ' '
|
||||
ja @b
|
||||
push eax
|
||||
mov byte [esi], 0
|
||||
xchg esi, [esp+4]
|
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call find_symbol_name
|
||||
mov edi, eax
|
||||
pop eax
|
||||
xchg esi, [esp]
|
||||
mov byte [esi], al
|
||||
jc @f
|
||||
add esp, 4
|
||||
mov al, token_hex
|
||||
ret
|
||||
|
||||
@@:
|
||||
pop esi
|
||||
; test for hex number
|
||||
xor ecx, ecx
|
||||
xor edi, edi
|
||||
xor eax, eax
|
||||
|
||||
@@:
|
||||
lodsb
|
||||
call is_hex_digit
|
||||
jc @f
|
||||
shl edi, 4
|
||||
or edi, eax
|
||||
inc ecx
|
||||
jmp @b
|
||||
|
||||
@@:
|
||||
dec esi
|
||||
jecxz .err
|
||||
cmp ecx, 8
|
||||
ja .err
|
||||
mov al, token_hex
|
||||
ret
|
||||
|
||||
.err:
|
||||
mov al, token_err
|
||||
mov esi, aParseError
|
||||
ret
|
||||
|
||||
;-----------------------------------------------------------------------------
|
||||
|
||||
expr_read2:
|
||||
cmp al, token_hex
|
||||
jz .hex
|
||||
cmp al, token_reg
|
||||
jz .reg
|
||||
cmp al, token_lp
|
||||
jz .lp
|
||||
mov al, token_err
|
||||
mov esi, aParseError
|
||||
ret
|
||||
|
||||
.hex:
|
||||
mov ebp, edi
|
||||
|
||||
.ret:
|
||||
jmp expr_get_token
|
||||
|
||||
.reg:
|
||||
cmp edi, 24
|
||||
jz .eip
|
||||
sub edi, 4
|
||||
jb .8lo
|
||||
sub edi, 4
|
||||
jb .8hi
|
||||
sub edi, 8
|
||||
jb .16
|
||||
mov ebp, [_eax+edi*4]
|
||||
jmp .ret
|
||||
|
||||
.16:
|
||||
movzx ebp, word [_eax+(edi+8)*4]
|
||||
jmp .ret
|
||||
|
||||
.8lo:
|
||||
movzx ebp, byte [_eax+(edi+4)*4]
|
||||
jmp .ret
|
||||
|
||||
.8hi:
|
||||
movzx ebp, byte [_eax+(edi+4)*4+1]
|
||||
jmp .ret
|
||||
|
||||
.eip:
|
||||
mov ebp, [_eip]
|
||||
jmp .ret
|
||||
|
||||
.lp:
|
||||
call expr_get_token
|
||||
call expr_read0
|
||||
cmp al, token_err
|
||||
jz @f
|
||||
cmp al, token_rp
|
||||
jz expr_get_token
|
||||
mov al, token_err
|
||||
mov esi, aParseError
|
||||
|
||||
@@:
|
||||
ret
|
||||
|
||||
;-----------------------------------------------------------------------------
|
||||
|
||||
expr_read1:
|
||||
call expr_read2
|
||||
|
||||
.1:
|
||||
cmp al, token_mul
|
||||
jz .mul
|
||||
cmp al, token_div
|
||||
jz .div
|
||||
ret
|
||||
|
||||
.mul:
|
||||
push ebp
|
||||
call expr_get_token
|
||||
call expr_read2
|
||||
pop edx
|
||||
; ebp := edx*ebp
|
||||
imul ebp, edx
|
||||
jmp .1
|
||||
|
||||
.div:
|
||||
push ebp
|
||||
call expr_get_token
|
||||
call expr_read2
|
||||
pop edx
|
||||
; ebp := edx/ebp
|
||||
test ebp, ebp
|
||||
jz .div0
|
||||
push eax
|
||||
xor eax, eax
|
||||
xchg eax, edx
|
||||
div ebp
|
||||
xchg eax, ebp
|
||||
pop eax
|
||||
jmp .1
|
||||
|
||||
.div0:
|
||||
mov al, token_err
|
||||
mov esi, aDivByZero
|
||||
ret
|
||||
|
||||
;-----------------------------------------------------------------------------
|
||||
|
||||
expr_read0:
|
||||
xor ebp, ebp
|
||||
cmp al, token_add
|
||||
jz .add
|
||||
cmp al, token_sub
|
||||
jz .sub
|
||||
call expr_read1
|
||||
|
||||
.1:
|
||||
cmp al, token_add
|
||||
jz .add
|
||||
cmp al, token_sub
|
||||
jz .sub
|
||||
ret
|
||||
|
||||
.add:
|
||||
push ebp
|
||||
call expr_get_token
|
||||
call expr_read1
|
||||
pop edx
|
||||
; ebp := edx+ebp
|
||||
add ebp, edx
|
||||
jmp .1
|
||||
|
||||
.sub:
|
||||
push ebp
|
||||
call expr_get_token
|
||||
call expr_read1
|
||||
pop edx
|
||||
; ebp := edx-ebp
|
||||
xchg edx, ebp
|
||||
sub ebp, edx
|
||||
jmp .1
|
||||
|
||||
;-----------------------------------------------------------------------------
|
||||
|
||||
; in: esi->expression
|
||||
; out: CF=1 if error
|
||||
; CF=0 and ebp=value if ok
|
||||
calc_expression:
|
||||
call expr_get_token
|
||||
call expr_read0
|
||||
cmp al, token_end
|
||||
jz .end
|
||||
cmp al, token_err
|
||||
jz @f
|
||||
mov esi, aParseError
|
||||
|
||||
@@:
|
||||
call put_message
|
||||
stc
|
||||
ret
|
||||
|
||||
.end:
|
||||
clc
|
||||
ret
|
||||
|
||||
;-----------------------------------------------------------------------------
|
||||
|
||||
get_arg:
|
||||
lodsb
|
||||
cmp al, ' '
|
||||
ja get_arg
|
||||
mov byte [esi-1], 0
|
||||
cmp al, 0
|
||||
jnz .skip_spaces
|
||||
dec esi
|
||||
|
||||
.skip_spaces:
|
||||
lodsb
|
||||
cmp al, 0
|
||||
jz @f
|
||||
cmp al, ' '
|
||||
jbe .skip_spaces
|
||||
|
||||
@@:
|
||||
dec esi
|
||||
ret
|
||||
|
||||
|
||||
|
||||
; vim: ft=fasm tabstop=4
|
||||
|
||||
@ -1,14 +1,17 @@
|
||||
; ‘®àâ¨à®¢ª dword'®¢ ¢ ª®«¨ç¥á⢥ ecx ¯® ¤à¥áã edx, äãªæ¨ï áà ¢¥¨ï ¢ ebx
|
||||
; <EFBFBD> §àãè ¥â eax, ecx, esi, edi
|
||||
; Sorting bunch of dwords, count = ecx, locating at address = edx,
|
||||
; comparison function at ebx
|
||||
; Destroy content of eax, ecx, esi, edi
|
||||
sort:
|
||||
jecxz .done
|
||||
mov eax, ecx
|
||||
|
||||
@@:
|
||||
push eax
|
||||
call .restore
|
||||
pop eax
|
||||
dec eax
|
||||
jnz @b
|
||||
|
||||
@@:
|
||||
cmp ecx, 1
|
||||
jz .done
|
||||
@ -19,6 +22,7 @@ sort:
|
||||
mov eax, 1
|
||||
call .restore
|
||||
jmp @b
|
||||
|
||||
.done:
|
||||
ret
|
||||
|
||||
@ -34,7 +38,7 @@ sort:
|
||||
.restore:
|
||||
lea esi, [eax+eax]
|
||||
cmp esi, ecx
|
||||
ja .doner
|
||||
ja .donerr
|
||||
push esi
|
||||
mov esi, [edx+esi*4-4]
|
||||
mov edi, [edx+eax*4-4]
|
||||
@ -42,13 +46,14 @@ sort:
|
||||
pop esi
|
||||
ja .need_xchg
|
||||
cmp esi, ecx
|
||||
jae .doner
|
||||
jae .donerr
|
||||
push esi
|
||||
mov esi, [edx+esi*4]
|
||||
mov edi, [edx+eax*4-4]
|
||||
call ebx
|
||||
pop esi
|
||||
jbe .doner
|
||||
jbe .donerr
|
||||
|
||||
.need_xchg:
|
||||
cmp esi, ecx
|
||||
jz .do_xchg
|
||||
@ -58,10 +63,15 @@ sort:
|
||||
call ebx
|
||||
pop esi
|
||||
sbb esi, -1
|
||||
|
||||
.do_xchg:
|
||||
mov edi, eax
|
||||
call .exchange
|
||||
mov eax, esi
|
||||
jmp .restore
|
||||
.doner:
|
||||
|
||||
.donerr:
|
||||
ret
|
||||
|
||||
; vim: ft=fasm tabstop=4
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user