VSCode - C Call Hierarchy

This extension creates C call hierarchy, using cscope, ctags and, readtags.

Features

The main feature is creating a call hierarchy for C code.

Requirements

This extension uses the cscope, ctags and, readtags (universal-ctags)

Installation on Linux/Unix (Mac)

use brew

brew install cscope universal-ctags

N.B.1 brew's universal-ctags provides the best implementation of ctags and readtags so it is highly recommended to use brew to install it N.B.2 it is highly un-recommended to use the native package manager to install this package unless you're sure that it's going to install the same implementation as brew's

Installation on Windows

• install cscope using cygwin or any other unix like environment or download it from here
• install ctags & readtags using cygwin or any other unix like environment or download it from here

make sure to add the following to the PATH environment variable:

1. CTAGS_DIR/ctags
2. CSCOPE_DIR/cscope
3. CSCOPE_DIR/cscope/UnxUtils/bin
4. CSCOPE_DIR/cscope/UnxUtils/usr/local/wbin

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Using C Call Hierarchy

• Upon extension activation, you'll be prompted to install the CSCOPE and CTAGS dependencies (if you're on windows for now), click Yes to install these dependencies
• Open the call hierarchy by selecting a function, and issue the show command Show Call Hierarchy (from the command palette or from the editor context menu).
• The extension tries to build the cscope & ctags databases when you issue the Show Call Hierarchy command and the cscope.out and/or ctags.out file[s] is/are not found. If this doesn't happen and the files are not created, you can manually issue a database build from the command palette using the command C Call Hierarchy: Build Database.
• explore extension settings to configure how the extension works as you like.