GenCodeHook, Version 1.5a

Download: codehook_1.5a.zip (35.608 Bytes, vom 09.08.2006 09:45:06)

Dateien

Name	Original	Gepackt	Datum / Uhrzeit
README.txt	8.365	3.375	09.08.2006 08:43:08
README.de.txt	8.568	3.690	09.08.2006 08:43:08
GenCodeHook.pas	8.652	3.041	04.07.2006 14:34:18
CodeLen.pas	73.928	15.547	09.08.2006 08:40:58
CodeMem.pas	3.908	1.511	01.01.2006 15:23:56
CodeMemOpt.pas	8.345	2.796	01.01.2006 15:23:56
CHANGES.txt	1.474	740	09.08.2006 08:43:08
Sample/	<dir>	<dir>	05.06.2006 11:59:52
Sample/FlashOnIO.dpr	605	327	01.01.2006 15:23:56
Sample/fmain.pas	8.140	2.024	01.01.2006 15:23:56
Sample/fmain.dfm	2.732	802	09.11.2005 13:19:50

Informationen

GenCodeHook.pas (CodeLen.pas, CodeMem.pas, CodeMemOpt.pas)

Delphi unit containing functions to do a generic code hook by replacing the
code location to be patched by a jump to the new location. Additionally, a
new code fragment is created that allows to call the old function. See the
included README.txt for more information and how to use it.

Version 1.5a - Always find the most current version at
http://flocke.vssd.de/prog/code/pascal/codehook/

Copyright (C) 2005, 2006 Volker Siebert <flocke@vssd.de>
All rights reserved.

License: M.I.T. (see source resp. the included file "README.txt")

Änderungen

2006-08-08: Version 1.3c

Small fix in "CodeLen.pas" (Delphi 5 only).

2006-01-01: Version 1.5

Some small changes to avoid warnings under Delphi 2006.

2005-10-23: Version 1.4

Almost complete rewrite of CodeLen.pas with the new functions "AnalyzeCpuInstructionSequence", "LengthOfCpuInstructionSequence", and "CopyCpuInstructionSequence".
Modified "CreateGenericCodeHook" to use two different branch types instead of a pc-relative displacement.
Removed the flag "Is16Bit" - did never work for 16-bit code.
Still no support for Windows 95/98/Me system area ($80000000-$FFFFFFFF).

Version 1.3 (non-public)

Removed from WebSite because of several problems regarding relocation of relative displacements, and with Windows 9x/Me and global hooks.
Added "AnalyzeCpuInstruction" for a thorough analysis of the instruction, including referenced code and data memory.

2005-09-16: Version 1.2

First public version (added sample application).
Enhanced "PatchMemory" by first overwriting the first byte with $CC.
Added some AMD specific instructions and 3DNow to "CodeLen.pas".

2005-09-15: Version 1.1

Added module "CodeMem.pas" for extensible code memory allocation.
Wrote optimized code memory manager "CodeMemOpt.pas".
Enhanced "PatchMemory" by "FlushInstructionCache".
Added function "IsJumpInstruction" to "CodeLen.pas".

2005-09-15: Version 1.0

Initial version, derived from the "PrintToFile" project.