This commit adds the ability to compile native modules for the RV64
platform, using "rv64imc" as its architecture name (eg.
"make ARCH=rv64imc" should build a RV64 natmod).
The rest of 64-bits relocations needed to build a native module are now
implemented, and all sample native modules build without errors or
warnings. The same Picolibc caveats on RV32 also apply on RV64, thus
the documentation was updated accordingly.
RV64 native modules are also built as part of the CI process, but not
yet executed as the QEMU port is not yet able to load and run them.
Signed-off-by: Alessandro Gatti <a.gatti@frob.it>
This commit provides the appropriate external symbol addresses to let
the "deflate" example natmod build for the Xtensa platform.
Unlike other natmods that require an external symbol list to build
without bringing in the whole runtime libraries set, this natmod is
referencing the `__modsi3` symbol which was removed from the ESP8266's
SDK but not present in ROM. The latter only has a `__umodsi3`
implementation that only operates on unsigned values, and thus unable to
handle this natmod. Thus, the extended library resolution process is
enabled for this natmod as a `__modsi3` implementation is made available
that way (still using ROM symbols whenever possible). This also means
that symbols that appear in both ROM and external libraries sort of
co-exist in the final MPY file, with ROM symbols being used by natmod
code but the implementation from the library still exists in the final
MPY file, unused.
Signed-off-by: Alessandro Gatti <a.gatti@frob.it>
This commit adds support for RV32IMC native modules, as in embedding native
code into a self-contained MPY module and and make its exported functions
available to the MicroPython environment.
Signed-off-by: Alessandro Gatti <a.gatti@frob.it>
Alessandro Gatti
Damien George
Jim Mussared