new mbedtls/timing.cpp creates double timing.o module

[JojoS62]

Description of defect

#14756 produces a linker warning because there exists already a timing.c:

Object file timing.o is not unique! It could be made from: mbed-os/connectivity/mbedtls/source/timing.c mbed-os/connectivity/mbedtls/platform/src/timing.cpp

Target(s) affected by this defect ?

Toolchain(s) (name and version) displaying this defect ?

arm-none-eabi-gcc (GNU Arm Embedded Toolchain 9-2020-q2-update) 9.3.1 20200408 (release)

What version of Mbed-os are you using (tag or sha) ?

b8781e5

What version(s) of tools are you using. List all that apply (E.g. mbed-cli)

mbed-cli v1

How is this defect reproduced ?

compile with mbed-cli v1

[mbedmain]

@JojoS62 thank you for raising this issue.Please take a look at the following comments:

Could you add some more detail to the description? A good description should be at least 25 words.
What target(s) are you using?
What toolchain(s) are you using?

NOTE: If there are fields which are not applicable then please just add 'n/a' or 'None'. This indicates to us that at least all the fields have been considered.
Please update the issue header with the missing information.

[0xc0170]

Thanks for the report, what toolchain are you testing with?

Although this comes from mbed tools :( I see there method detect_duplicates in tools/resources/init.py. I recall there were problems in some IDE that might have a problem with that, otherwise it should not be.

[0xc0170]

Is this just a linker warning? From the code, it looks like it should be tool error (I wonder why CI did not catch this error).

[JojoS62]

the binary image was created, and the target is running. But I'm not using the mbedtls, so the problem may have no effect.

compiled with gcc9, using 'mbed compile' in a shell in ubuntu linux.