Unable to compile 32-bit version

[iceman-77]

This is an awesome tool, but I need this in 32-bit version. I tried to compile it with MinGW i686-7.3.0-release-posix-sjlj and CMake 3.23 but I am getting the following linker error:

cmake --build .
[ 71%] Built target mhook
[ 85%] Building CXX object CMakeFiles/version.dir/hook.cpp.obj
[100%] Linking CXX shared library version.dll
CMakeFiles\version.dir/objects.a(hook.cpp.obj):hook.cpp:(.text+0x2d): undefined reference to orig_GetFileVersionInfoA' CMakeFiles\version.dir/objects.a(hook.cpp.obj):hook.cpp:(.text+0x39): undefined reference to orig_GetFileVersionInfoByHandle'
CMakeFiles\version.dir/objects.a(hook.cpp.obj):hook.cpp:(.text+0x45): undefined reference to orig_GetFileVersionInfoExW' CMakeFiles\version.dir/objects.a(hook.cpp.obj):hook.cpp:(.text+0x51): undefined reference to orig_GetFileVersionInfoExA'
CMakeFiles\version.dir/objects.a(hook.cpp.obj):hook.cpp:(.text+0x5d): undefined reference to orig_GetFileVersionInfoSizeA' CMakeFiles\version.dir/objects.a(hook.cpp.obj):hook.cpp:(.text+0x69): undefined reference to orig_GetFileVersionInfoSizeExA'
CMakeFiles\version.dir/objects.a(hook.cpp.obj):hook.cpp:(.text+0x75): undefined reference to orig_GetFileVersionInfoSizeExW' CMakeFiles\version.dir/objects.a(hook.cpp.obj):hook.cpp:(.text+0x81): undefined reference to orig_GetFileVersionInfoSizeW'
CMakeFiles\version.dir/objects.a(hook.cpp.obj):hook.cpp:(.text+0x8d): undefined reference to orig_GetFileVersionInfoW' CMakeFiles\version.dir/objects.a(hook.cpp.obj):hook.cpp:(.text+0x99): undefined reference to orig_VerFindFileA'
CMakeFiles\version.dir/objects.a(hook.cpp.obj):hook.cpp:(.text+0xa5): undefined reference to orig_VerFindFileW' CMakeFiles\version.dir/objects.a(hook.cpp.obj):hook.cpp:(.text+0xb1): undefined reference to orig_VerInstallFileA'
CMakeFiles\version.dir/objects.a(hook.cpp.obj):hook.cpp:(.text+0xbd): undefined reference to orig_VerInstallFileW' CMakeFiles\version.dir/objects.a(hook.cpp.obj):hook.cpp:(.text+0xc9): undefined reference to orig_VerLanguageNameA'
CMakeFiles\version.dir/objects.a(hook.cpp.obj):hook.cpp:(.text+0xd5): undefined reference to orig_VerLanguageNameW' CMakeFiles\version.dir/objects.a(hook.cpp.obj):hook.cpp:(.text+0xe1): undefined reference to orig_VerQueryValueA'
CMakeFiles\version.dir/objects.a(hook.cpp.obj):hook.cpp:(.text+0xed): undefined reference to `orig_VerQueryValueW'
collect2.exe: error: ld returned 1 exit status
mingw32-make.exe[2]: *** [CMakeFiles\version.dir\build.make:101: version.dll] Error 1
mingw32-make.exe[1]: *** [CMakeFiles\Makefile2:99: CMakeFiles/version.dir/all] Error 2
mingw32-make.exe: *** [Makefile:135: all] Error 2

Any idea how to fix this ?

[iceman-77]

Nevermind, I found the issue with WRAPPER_GENFUNC(name). Adding underscore to 'orig' for the asm directive has fixed the problem: asm("jmp *orig"#name);

[ViRb3]

For reference, this is also documented in the template project: https://github.com/ViRb3/PerfectProxyDLL

[iceman-77]

I have managed to compile it, but for some reason it does not hook the calls, getting a message “Something went wrong” and java.exe is crashing. I have the JVMDUMP folder on my desktop. Any ideas what else needs to be changed to get this work with 32b JRE ? On Wednesday, March 2, 2022, 05:42:04 PM CST, Victor ***@***.***> wrote: For reference, this is also documented in the template project: https://github.com/ViRb3/PerfectProxyDLL — Reply to this email directly, view it on GitHub, or unsubscribe. Triage notifications on the go with GitHub Mobile for iOS or Android. You are receiving this because you authored the thread.Message ID: ***@***.***>

[iceman-77]

For reference, this is also documented in the template project: https://github.com/ViRb3/PerfectProxyDLL

I tried to compile your PerfectProxy DLL but any program I run with version.dll "attached" crashes. Could this be due to wrong compilation setup ? I used MinGW i686-7.3.0-release-posix-sjlj as I need 32-bit version of the hook DLL