Perl Debugger vs RenderDoc

Perl Debugger is an interactive debugger included with Perl, not a separate program. Running Perl with the `-d` flag loads the debugger and adds source information, allowing users to inspect code, set breakpoints, view stack backtraces, and change variable values. The program must compile correctly before debugging.

Debugger commands support stepping into subroutine calls, stepping over them, and tracing execution. Conditional breakpoints and watches on global expressions can pause a run when specified conditions or changes occur. The `x` command can pretty-print nested data; displaying lexical variables requires PadWalker version 0.08 or higher. Options can be set interactively, through `PERLDB_OPTS`, or in `.perldb` files. Documentation also describes a GUI option through Devel::ptkdb. The debugger does not provide stack-frame information for functions not compiled by Perl, such as C or C++ extension functions, and compile-time executable statements are not stopped, though some can be traced with AutoTrace. Perl is listed for Linux, macOS, and Windows, and the debugger is free.

RenderDoc is a frame-capture graphics debugger for graphics development, released under the MIT license and available free. It supports Vulkan, D3D11, D3D12, OpenGL, and OpenGL ES, with HLSL, GLSL, and SPIR-V listed among supported languages. Its listed platforms are Windows, Linux, and Android; Nintendo Switch support is noted for authorized developers using NintendoSDK. The API support table marks OpenGL 1.0–2.0 compatibility as supported, while D3D9/10 and Metal are unavailable. Linux support is limited to 64-bit x86. Windows users can choose 32-bit or 64-bit builds or a portable ZIP, and the 64-bit build can capture 32-bit programs. Stable and nightly binary releases are available; stable builds are recommended for new users because nightlies may be less stable. Documentation is online for the latest stable version and included as a CHM file in builds, with introductory videos also linked. The project lists GitHub issues, email, IRC, and Discord for questions and problems. RenderDoc is intended for debugging programs users created; its public support channels do not allow discussion of capturing programs they did not create.