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Jim Mussared 5015779a6f py/builtinevex: Handle invalid filenames for execfile. 
If a non-string buffer was passed to execfile, then it would be passed
as a non-null-terminated char* to mp_lexer_new_from_file.

This changes mp_lexer_new_from_file to take a qstr instead (as in almost
all cases a qstr will be created from this input anyway to set the
`__file__` attribute on the module).

This now makes execfile require a string (not generic buffer) argument,
which is probably a good fix to make anyway.

Fixes issue #12522.

This work was funded through GitHub Sponsors.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
 		2023-10-12 15:17:59 +11:00
..
Makefile all: Use += rather than = everywhere for CFLAGS/LDFLAGS/LIBS. 2022-10-11 23:17:41 +11:00
README.md powerpc/uart: Choose which UART to use at build time, not runtime. 2020-05-29 22:54:55 +10:00
head.S all: Fix spelling mistakes based on codespell check. 2023-04-27 18:03:06 +10:00
main.c py/builtinevex: Handle invalid filenames for execfile. 2023-10-12 15:17:59 +11:00
mpconfigport.h {mimxrt,powerpc,samd}/mpconfigport: Don't override parse chunk alloc. 2023-09-29 14:11:26 +10:00
mphalport.h all: Reformat C and Python source code with tools/codeformat.py. 2020-02-28 10:33:03 +11:00
powerpc.lds all: Fix spelling mistakes based on codespell check. 2023-04-27 18:03:06 +10:00
qstrdefsport.h all: Add *FORMAT-OFF* in various places. 2020-02-28 10:31:07 +11:00
uart_lpc_serial.c powerpc/uart: Choose which UART to use at build time, not runtime. 2020-05-29 22:54:55 +10:00
uart_lpc_serial.h powerpc: Add initial port to bare metal PowerPC arch. 2019-10-22 22:45:33 +11:00
uart_potato.c powerpc/uart: Choose which UART to use at build time, not runtime. 2020-05-29 22:54:55 +10:00
uart_potato.h powerpc: Add initial port to bare metal PowerPC arch. 2019-10-22 22:45:33 +11:00
unistd.h powerpc: Add initial port to bare metal PowerPC arch. 2019-10-22 22:45:33 +11:00

README.md

The PowerPC port that runs on microwatt and qemu

This port is intended to be a minimal MicroPython port that runs in QEMU, microwatt simulator with ghdl or microwatt on Xilinx FPGA with potato UART.

Building

By default the port will be built with the potato uart for microwatt:

$ make

To instead build for a machine with LPC serial, such as QEMU powernv:

$ make UART=lpc_serial

Cross compilation for POWERPC

If you need to cross compilers you'll want to grab a powerpc64le compiler (not powerpc or powerpc64).

On Ubuntu (18.04) you'll want:

$ apt install gcc-powerpc64le-linux-gnu

(Use CROSS_COMPILE=powerpc64le-linux-gnu-)

If your distro doesn't have cross compilers, you can get cross compilers here:

(Avoid musl libc as it defines __assert_fail() differently to glibc which breaks the micropython powerpc code)

Then do:

$ make CROSS_COMPILE=<compiler prefix>

Building will produce the build/firmware.bin file which can be used QEMU or microwatt.

To run in QEMU use:

$ ./qemu-system-ppc64 -M powernv -cpu POWER9 -nographic -bios build/firmware.bin