7ab5252cdd
to trade compile speed & flash size Initially enable the faster mode on rp2040 and espressif, where there's usually plenty of flash available (these advanced techniques save hundreds to thousands of bytes, which is important on a lot of old samd21 boards but is a drop in the lake of a 4MB flash chip) |
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|---|---|---|
| .. | ||
| mpy_cross | ||
| fmode.c | ||
| fmode.h | ||
| gccollect.c | ||
| main.c | ||
| Makefile | ||
| Makefile.fuzz | ||
| Makefile.m1 | ||
| Makefile.static | ||
| Makefile.static-aarch64 | ||
| Makefile.static-mingw | ||
| Makefile.static-raspbian | ||
| mpconfigport.h | ||
| mphalport.h | ||
| mpy-cross.vcxproj | ||
| qstrdefsport.h | ||
| README.md | ||
| windows-fmode.c | ||
MicroPython cross compiler
This directory contains the MicroPython cross compiler, which runs under any Unix-like system and compiles .py scripts into .mpy files.
Build it as usual:
$ make
The compiler is called mpy-cross. Invoke it as:
$ ./mpy-cross foo.py
This will create a file foo.mpy which can then be copied to a place accessible
by the target MicroPython runtime (eg onto a pyboard's filesystem), and then
imported like any other Python module using import foo.
Different target runtimes may require a different format of the compiled bytecode, and such options can be passed to the cross compiler.
If the Python code contains @native or @viper annotations, then you must
specify -march to match the target architecture.
Run ./mpy-cross -h to get a full list of options.
The optimisation level is 0 by default. Optimisation levels are detailed in https://docs.micropython.org/en/latest/library/micropython.html#micropython.opt_level