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LDDW : LDD for Windows

A ldd(List Dynamic Dependencies) implementation for windows, written in C.

SYNOPSIS

lddw [option]... file...

DESCRIPTION

lddw prints the shard objects (shared libraries) required by each program or shared object specified on the command line. An example of its use and output is the following:

PS> lddw $(get-command rundll32).Source
        msvcrt.dll  =>  C:\Windows\System32\msvcrt.dll (not loaded)
          ntdll.dll  =>  C:\Windows\System32\ntdll.dll (0x7CAF0000)
          KERNELBASE.dll  =>  C:\Windows\System32\KernelBase.dll (0x7A310000)
            ntdll.dll  =>  C:\Windows\System32\ntdll.dll (0x7CAF0000)
        imagehlp.dll  =>  C:\Windows\System32\imagehlp.dll (not loaded)
          ntdll.dll  =>  C:\Windows\System32\ntdll.dll (0x7CAF0000)
        ntdll.dll  =>  C:\Windows\System32\ntdll.dll (0x7CAF0000)

In the usual case, lddw scan the import table section in PE header of file. And if the import table is detected in PE header, For each dependency that is in the import table, lddw displays the location of the matching object and the (hexdecimal) address at which it is loaded.

SECURITY

Unlinke original ldd(1), lddw doesn't attempt to directly execute the program to obtain the dependency information. Thus, You can use lddw on an untrusted executable.

OPTIONS

  • -a, --all

Print all dependencies including API-set

  • -f, --flatten

Print dependencies on flatten format, not tree format

  • -h, --help

Usage information

  • -V, --version

Print version information and exit

BUILDING

Prerequisites

Use clang and lld with MSYS2

  • C Compiler

gcc causes a link error when compile lddw because of its name mangling about Win32 APIs. Thus, you need to use clang instead of gcc.

  • Linker

The standard dynamic linker (see ld) causes a link error when compile lddw. So, you need to use lld instead of the standard dynamic linker.

Compiling

You can use build script file(see project/build.ps1) for powershell. Below is how to use script file.

Set-Location path/to/repository/
Set-Location project
./build.ps1 -Architecture x86-64 -Mode Release

If you cannot run powershell script directly, Instead of running powershell script, You can run make directly.

cd path/to/repository
cd project
mingw32-make clean
mingw32-make all ARCH=x86-64 MODE=Release