These are the top level Legato Dev Host directories installed:

3rdParty - CUnit system used for automated unit testing.

airvantage - code and executables to run AirVantage.

apps - sample applications: airvantageDemo, helloWorld, modemDemo.

bin - created by build system and populated with executable files run on the development host that ran the build. Contains files like mkapp and mkexe.

build - results of a framework build. Includes build/tools (tools used by the build system) and build/target (output of a build for a specific target e.g., /build/wp7).

buildTools - source code for build tools (when built, in ./build/tools).

cmake - CMake scripts used by the build system.

components - pre-built audio, data, modem and positioning components.

framework - source code for the Legato framework.

interfaces - pre-built audio, data, modem and positioning interfaces.

platformServices pre-built app definition files for audio, data, modem and positioning services.

targetFiles - files for installation on target devices.