Signed-off-by: Bruno Sa <bruno.vilaca.sa@gmail.com>
Signed-off-by: David Cerdeira <davidmcerdeira@gmail.com>

Clang assembler requires valid assembly; otherwise, an error is thrown.
Instead of using "->" as the token to parse for assembly macro defines,
we define the tokens "#", which is used for comments in assembly files.
The generated output will be valid for both clang and gcc.

Signed-off-by: Bruno Sa <bruno.vilaca.sa@gmail.com>

This commit fixes relocation errors identified by the clang compiler and
marks the .gtl_page_tables section as no data otherwise there is a type
mismatch.

Signed-off-by: Bruno Sa <bruno.vilaca.sa@gmail.com>

This commit fixes some issues when using clang:
- remove .directive .func which is not recognized by clang assembler;
- make gtlb_page_tables as no data to avoid section type mismatch;
- remove general-regs-only in aarch32 this is not recognized by the
  clang assembler
- remove mov instructions with flexible second operand since they are
  not recognized by the clang assembler;

Signed-off-by: Bruno Sa <bruno.vilaca.sa@gmail.com>
Signed-off-by: David Cerdeira <davidmcerdeira@gmail.com>

These flags are enabled in Clang compiler by default.
Adding these flags minimized the discrepancies between GCC and Clang

Signed-off-by: Miguel Silva <miguelafsilva5@gmail.com>

Signed-off-by: Miguel Silva <miguelafsilva5@gmail.com>

Clang compiler only accepts fallthrough annotation to be done using
attribute(fallthrough). This is can be enforced in gcc using the flag
-Wimplicit-fallthrough=5

Signed-off-by: Miguel Silva <miguelafsilva5@gmail.com>

Both MISRA and clang compiler force inline functions to be static.
Functions that are used in multiple sources stop being inline because they
cannot be static.
The other inline functions become static and their prototype is removed from
the header

Signed-off-by: Miguel Silva <miguelafsilva5@gmail.com>