CMake: Rename Mbed OS path variable for consistency ...

Rename the CMake variable expected from applications from MBED_ROOT to
MBED_PATH to be consistent with the naming used for the configuration file
(MBED_CONFIG_PATH) also expected from applications.

Activate ccache for CMake

CMake readme: update mbed-tools to 3.4

CMake: 3.19.0 update to fix ARMClang ASM defines

CMake: ninja reponse files disabled for ARMClang on Windows ...

Issue https://gitlab.kitware.com/cmake/cmake/-/issues/21093

Until this is fixed, we should disable response files for ARMClang + ninja on Windows.
Other toolchains and host systems should benefit from response files thus not disabling them
completely.

This fixes the issue with not finding includes. It's not trivial to find the root cause, it took me a while to figure out why ARMClang can't find the paths.

I moved the check to Mbed OS main cmake. It should not be in the toolchain file as it is not
related to the toolchain but to generator. We need toolchain properly set up first.

Note, I had to protect setting CMAKE_NINJA_FORCE_RESPONSE_FILE. If I set it to 0, ninja
would still use rsp files so I rather protected it and define that variable only when
required, not always.

Co-authored-by: Hugues Kamba <41612201+hugueskamba@users.noreply.github.com>

TEST: use mbed-tools build wrapper replace cmake build commands

restrict BLE example only build BLE_LED

TEST: fix a bug on example scripts

TEST: add BLE example to cmake example json

TEST: remove cmake build test from TravisCI

TEST: update example scripts for cmake

Update CMakeLists.txt ...

Co-authored-by: Rajkumar Kanagaraj <45570536+rajkan01@users.noreply.github.com>

CMake: fix the output bin-hex file ...

$<TARGET_FILE:${target}> is the output from CMake. As it can contain suffix for some toolchains, we can use ${target} instead (output from hex/bin generation).

Replace PUBLIC to INTERFACE keyword

CMake: Add support for NUCLEO_F303K8 ...

Added the board so it can be used for testing the bare-metal profile on a Mbed 2 board

Update rtos/CMakeLists.txt ...

Co-authored-by: Hugues Kamba <41612201+hugueskamba@users.noreply.github.com>

CMake: add mbed-os and mbed-baremetal targets ...

mbed-os consists of mbed-core and mbed-rtos
mbed-baremetal consists of mbed-core

The main change is for mbed-core. Changing from object library to be interface. This way it allows us to do the above to have 2 main targets for users to use.

This should be backward compatible change as mbed-os target we used contains the same files/options as previously set.

CMake: split rtos from core target ...

Add or remove and directories containing source files, header files, and macro definitions that implement RTOS support.
This includes:
- cmsis/CMSIS_5/CMSIS/RTOS2/
- cmsis/device/rtos/
- rtos/source/ConditionVariable.cpp
- rtos/source/Thread.cpp

CMake: Create a mbed-os alias library ...

This ensures that applications which link with the mbed-os
CMake target still work. We want applications that require the OS
to use the mbed-os CMake target as we will be creating a new one
that will include mbed-core and mbed-rtos.

CMake: Rename CMake targets ...

* mbed-os renamed mbed-core
* mbed-os-<COMPONENT> renamed mbed-<COMPONENT>

CMake: fix application config ...

These settings like enable_language should be done in the application and just once.
We hit the issue when you expose sources to an app (interface or public), CMake errors as some of the internal settings have not been configured.

CMake: remove TODO as it is not valid anymore

Update CMake based on new STM32L4 directory structure

CMake: fix for Gcc Arm preprocessing linker file ...

A linker script needs symbols (stack size, app size, etc). They are basic values or defines. Not any array like or string like macros. We should filter these, as they are not valid anyway.

The other option to fix this would be to fix all the macros but I dont think it is needed as these config values won't be used in the linker script anyway.

Not allowed in ld files macros with spaces, like MACRO={0, 2, 3} or MACRO=(4 * 2000).

CMake: Restore rtos api and netsocket presence macro names ...

The old tools rely on the old names to build

CMake: remove string.h in STM32 usb, already included (#13773)

CMake: Fix BLE private address linker error ...

List newly added files in CMake input source files.

CMake: Fix travis fetch PR (#13763) ...

Either fetch TRAVIS_COMMIT or the entire pull request (depending on the TRAVIS_PULL_REQUEST environment variable).

CMake: Replace tested BLE application in CI description ...

BLE_Button, which was the previously tested BLE example, is
being removed in mbed-os-example-ble. Replace it with BLE_LED.

cmake: fix present inclusion ...

We use only _PRESENT macros for components if they are enabled. Use the same in
the mbed.h file or anywhere else.