Build failure in exported mbed-os-example-mesh-minimal in KEIL uvision5

[artokin]

Description

Exported example application https://github.com/ARMmbed/mbed-os-example-mesh-minimal fails to build using Keil uvision5.

Steps to reproduce:

1. Install Keil uvision5 that supports ARMC6 compiler >= 6.11
2. Clone https://github.com/ARMmbed/mbed-os-example-mesh-minimal
3. Run mbed deploy
4. Change mbed-os revision to master or mbed-os-5.12.0-rc4
5. Export project mbed export -i uvision6 -m k64f
6. In Keil uvision5 Project menu run Build Target command
7. Observe results

Expected result:

• Application can be build successfully

Actual result:
Build fails with lot of errors:
".\BUILD\mbed-os-example-mesh-minimal.axf" - 1117 Error(s), 89 Warning(s).

There seems to be clashing file mbed-os/features/storage/FEATURE_STORAGE/cfstore\version that is accidentally build in:
mbed-os/drivers/AnalogIn.cpp(18): warning: In file included from... mbed-os\drivers/AnalogIn.h(25): warning: In file included from... mbed-os\platform/SingletonPtr.h(29): warning: In file included from... C:\Keil_v5\ARM\ARMCLANG\Bin\..\include\libcxx\new(84): warning: In file included from... C:\Keil_v5\ARM\ARMCLANG\Bin\..\include\libcxx\exception(82): warning: In file included from... C:\Keil_v5\ARM\ARMCLANG\Bin\..\include\libcxx\type_traits(406): warning: In file included from... mbed-os/features/storage/FEATURE_STORAGE/cfstore\version(1): error: expected unqualified-id { ^
If file mbed-os/features/storage/FEATURE_STORAGE/cfstore\version is cleared then build succeeds.

Issue request type

[ ] Question
[ ] Enhancement
[x] Bug

[cmonr]

Export project mbed export -i uvision6 -m k64f

@artokin Should the above quoted line have been 'uvision5' instead?

[ciarmcom]

Internal Jira reference: https://jira.arm.com/browse/MBOCUSTRIA-1064

[artokin]

@cmonr , shouldn't we use uvision6 to get application build with ARMC6? At least the application can be built OK when cfstore/VERSION is cleared.

If parameter uvision5 is used then the project generation fails:

~/github/mbed-os-example-mesh-minimal ((mbed-os-5.12.0-rc4))$ mbed export -i uvision5 -m k64f
K64F not supported by uvision5
[mbed] Auto-installing missing Python modules...
[mbed] ERROR: "c:\python27\python.exe" returned error.
       Code: 2

[j3hill]

@artokin If you installed the latest uVision "mdk527.exe", this actually installs the ARM 6.12 compiler, not the ARM 6.11 compiler (...you can see this if you go to the "Help" information in the uVision IDE). This issue also only occurs on Windows build systems because the "VERSION" file referenced above has the same name as another "version" file that is created and placed in that folder (...and Windows is not case sensitive). If you rename the "VERSION" file in mbed-os/features/storage/FEATURE_STORAGE/cfstore something like "VERSION5" you should be able to compile.

[artokin]

@j3hill , I would like to get Mbed OS fixed :-)
No tricks should be needed for uvision5 nor uvision6

[0xc0170]

Fixed via #10280