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Home > The ARM C and C++ Libraries > Multithreaded support in ARM C libraries > How to ensure re-implemented mutex functions are called |
If your re-implemented _mutex_*()
functions are within an object that is contained within a library file, the linker does not automatically include the object.
This can result
in the _mutex_
functions being
excluded from the image you have built.*
()
To ensure that your _mutex_
functions are called, you can either:*
()
Place your mutex functions in a non-library object file. This helps to ensure that they are resolved at link time.
Place your mutex functions in a library object file, and arrange a non-weak reference to something in the object.
Place your mutex functions in a library object file,
and have the linker explicitly extract the specific object from
the library on the command line by writing
when
you invoke the linker.libraryname
.a(objectfilename
.o)