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tools/mpy_ld.py: Add native modules support for RV32 code.

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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>
This commit is contained in:
Alessandro Gatti
2024-06-23 08:18:04 +02:00
committed by Damien George
parent 136058496f
commit 6760e00817
13 changed files with 425 additions and 16 deletions
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5
docs/develop/natmod.rst
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@@ -39,7 +39,8 @@ options for the ``ARCH`` variable, see below):
* ``armv7emsp`` (ARM Thumb 2, single precision float, eg Cortex-M4F, Cortex-M7)
* ``armv7emdp`` (ARM Thumb 2, double precision float, eg Cortex-M7)
* ``xtensa`` (non-windowed, eg ESP8266)
* ``xtensawin`` (windowed with window size 8, eg ESP32)
* ``xtensawin`` (windowed with window size 8, eg ESP32, ESP32S3)
* ``rv32imc`` (RISC-V 32 bits with compressed instructions, eg ESP32C3, ESP32C6)
When compiling and linking the native .mpy file the architecture must be chosen
and the corresponding file can only be imported on that architecture. For more
@@ -172,7 +173,7 @@ The file ``Makefile`` contains:
# Source files (.c or .py)
SRC = factorial.c
# Architecture to build for (x86, x64, armv6m, armv7m, xtensa, xtensawin)
# Architecture to build for (x86, x64, armv6m, armv7m, xtensa, xtensawin, rv32imc)
ARCH = x64
# Include to get the rules for compiling and linking the module