Remove all source files exclusive to Arm Compiler and IAR (#159) ...

* Remove all source files exclusive to Arm Compiler and IAR

* Also remove 'TOOLCHAIN_ARM'

* Remove targets.json entries for ARM and IAR

Fix ABI differences between mbed-baremetal and mbed-os, remove PlatformMutex

- Split mbed-core and mbed-rtos into -sources and -flags targets ...

- Fix some logic errors in top level cmakelists related to building greentea tests
- Fix mbed_create_distro() for OBJECT libraries

cmsis: fix iar asm build error with including header ...

mbed-cli1 does not pass -I to IAR for iarasm (comparing to other toolchains). Because old tools are frozen,
we implement this workaround for fixing the build.

We use preprocessor macros that are passed to .S files anyway, so we do not loose anything but we do diverge again from CMSIS, for now..

cmsis: patch fpu in asm for armcc5 ...

For FPU, use armasm to select fpu selection. This will be fixed upstream in the next version of CMSIS. Meanwhile, we use our local patch.

Taken from --cpu selection for armasm:

--cpu           | {FPU}
Cortex-M4.fp.sp | VFPv4_SP_D16
Cortex-M7.fp.sp | FPv5-SP
Cortex-M7.fp.dp | FPv5_D16

Tracking issue: https://github.com/ARM-software/CMSIS_5/issues/1266

cmsis: preprocess irq files ...

We use preprocessor for asm files even for Armcc. If symbol is defined it's replaced by preprocessor,
asembler would just see 1 or 0 in this case and errors:
TARGET_M33\\irq_armv8mml.S", line 31: Error: A1185E: Symbol missing

Use preprocessor instead.

cmsis: fix armcc compat header redefition of enable/disable irq ...

The fix will be in the 5.8.1 CMSIS, we cherry-pick it to our imported version.
See https://github.com/ARM-software/CMSIS_5/commit/e797cca3f42bef19a2c33b3b929f6010ddf53580

cmsis: fix rtx_def inclusion in .S files for Gcc Arm ...

rtx_def includes two CMSIS headers that pull in C/C++ headers in our case. As I found out,
they should only define macros. We can fix it but it will require some refactoring as our targets
use mbed rtx headers to define heap using stdin header, plus some other offenders.

Workaround is to exclude the headers we do not need in irq assembly files.

Tracking issue https://github.com/ARMmbed/mbed-os/issues/14962

cmsis: fix license header in rtx_def ...

Upstream fix was merged https://github.com/ARM-software/CMSIS_5/pull/1238. Included here as it will be overwritten once again updated

CMSIS/RTX: Allow overwriting mutex ops for ARMC ...

(cherry picked from commit 08ab8cc)

CMSIS/RTX: Patch to conditionally compile ...

tz_context.c should be compiled only for secure world,
definition of API's in tz_context.h should be part of secure
binary/bootloader when building mbed-os as non-secure

(Cherry picked from d0a43b8)

(cherry picked from commit fb35475)

CMSIS/RTX: Patch RTX4 to preserve osThreadDef compatibility ...

mbed OS used older RTX4 version and with osThreadDef accepting only 3
parameters, to preserve compatibility we hardcode the 'instances'
parameter to 1.

(cherry picked from commit 428acae)
(cherry picked from commit 4360b7b)

[CMSIS_5]: Updated to 13b9f72f2

CMSIS: Modify M0/M0+ GCC asm to support ARMC6

cmake: Use GCC CMSIS assembly with ARM toolchain ...

CMSIS provides both GNU and legacy ARM assembly files. Instead of using
armasm and legacy asm with ARM Compiler 6, CMakeLists is modified to
use the GNU format with both GCC_ARM and ARM C6.

CMake: Update mbed os, unittest CMake and add CMAKE_CROSSCOMPILING guard ...

- Add a new MbedOS project in mbed os root CMake which can be used along with
  BUILD_TESTING conditional check for enabling the unittest build
- Update UNITTEST CMake for setting the CMake configuration like c, cxx flags etc.,
- Add if CMAKE_CROSSCOMPILING conditional check wherever target configuration check
  and toolchain configuration to avoid such configuration gets included for unittest build.

Merge pull request #14306 from hugueskamba/hk_cmake_create_cmsis_cortex_libs ...

CMake: Create CMSIS library targets to remove dependency on MBED_TARGET_LABELS

CMake: Create CMSIS library targets to remove dependency on MBED_TARGET_LABELS ...

This goes towards eventually removing reliance on targets.json to specify
the requirements of Mbed targets.

CMake: remove IAR references as they are not supported

CMake rtos: add M55 to irq handlers, use m33 handlers = the same

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: Rename CMake targets ...

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

CMake: replace usage of the mbed_add_cmake_directory_if_labels() function (#13754) ...

Directories that start with special prefixes (TARGET_, FEATURE_, COMPONENT_)  are added to the build based on Mbed target configuration from targets.json instead of calling utility function mbed_add_cmake_directory_if_labels().

CMake: Fix location of M33 exception handler source file

CMake: Fix build failure due to CMSIS restructure

cmsis: remove math header file ...

It was removed in 6.0 (see reference below), and it was reintroduced when we updated
cmsis from the upstream. We missed to remove the commit adding the file in the cmsis
importer. This fixes it and the file should not be introduced again.

Fixes #13823

Already removed in 6.0: https://github.com/ARMmbed/mbed-os/pull/12055

CMSIS: Restructure ported CMSIS_5 ...

See docs/adr/0001_cmsis_component_source_structure_recommendations.md
For details information.