circuitpython/mpy-cross
flom84 3ca0131ddd Fix mpy-cross compile error with GCC13.
- GCC13 reports the following error when compiling mpy-cross:

main.c:313:6: error: conflicting types for ‘mp_import_stat’ due to enum/integer mismatch; have ‘uint(const char *)’ {aka ‘unsigned int(const char *)’} [-Werror=enum-int-mismatch]
  313 | uint mp_import_stat(const char *path) {
      |      ^~~~~~~~~~~~~~
In file included from ../py/compile.h:29,
                 from main.c:11:
../py/lexer.h:205:18: note: previous declaration of ‘mp_import_stat’ with type ‘mp_import_stat_t(const char *)’
  205 | mp_import_stat_t mp_import_stat(const char *path);
      |                  ^~~~~~~~~~~~~~
cc1: all warnings being treated as errors
make: *** [../py/mkrules.mk:62: build/main.o] Error 1
2023-04-11 19:38:27 +02:00
..
.gitignore
Makefile
Makefile.fuzz
Makefile.m1
Makefile.static
Makefile.static-aarch64
Makefile.static-mingw
Makefile.static-raspbian
README.md
fmode.c
fmode.h
gccollect.c
main.c
mpconfigport.h
mphalport.h
mpy-cross.mk
mpy-cross.vcxproj
qstrdefsport.h

README.md

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