circuitpython/ports/qemu-arm
Paul Sokolovsky ea6bddbf81 ports/qemu-arm: Rework "test" target using upytesthelper.
The way tinytest was used in qemu-arm test target is that it didn't test
much. MicroPython tests are based on matching the test output against
reference output, but qemu-arm's implementation didn't do that, it
effectively tested just that there was no exception during test
execution. "upytesthelper" wrapper was introduce to fix it, so switch
test implementation to use it.

This requires passing different CFLAGS when building the firmware, so
split out test-related parts to Makefile.test.
2017-12-13 09:07:51 +02:00
..
Makefile ports/qemu-arm: Rework "test" target using upytesthelper. 2017-12-13 09:07:51 +02:00
Makefile.test ports/qemu-arm: Rework "test" target using upytesthelper. 2017-12-13 09:07:51 +02:00
README.md ports/qemu-arm: Rework "test" target using upytesthelper. 2017-12-13 09:07:51 +02:00
main.c all: Remove inclusion of internal py header files. 2017-10-04 12:37:50 +11:00
modmachine.c ports: Make new ports/ sub-directory and move all ports there. 2017-09-06 13:40:51 +10:00
moduos.c ports: Make new ports/ sub-directory and move all ports there. 2017-09-06 13:40:51 +10:00
mpconfigport.h ports/qemu-arm: Rework "test" target using upytesthelper. 2017-12-13 09:07:51 +02:00
mphalport.h ports: Make new ports/ sub-directory and move all ports there. 2017-09-06 13:40:51 +10:00
qstrdefsport.h ports: Make new ports/ sub-directory and move all ports there. 2017-09-06 13:40:51 +10:00
test_main.c ports/qemu-arm: Rework "test" target using upytesthelper. 2017-12-13 09:07:51 +02:00

README.md

This is experimental, community-supported port for Cortex-M emulation as provided by QEMU (http://qemu.org).

The purposes of this port are to enable:

  1. Continuous integration
    • run tests against architecture-specific parts of code base
  2. Experimentation
    • simulation & prototyping of anything that has architecture-specific code
    • exploring instruction set in terms of optimising some part of MicroPython or a module
  3. Streamlined debugging
    • no need for JTAG or even an MCU chip itself
    • no need to use OpenOCD or anything else that might slow down the process in terms of plugging things together, pressing buttons, etc.

This port will only work with with GCC ARM Embedded toolchain and not with CodeSourcery toolchain. You will need to modify LDFLAGS if you want to use CodeSourcery's version of arm-none-eabi. The difference is that CodeSourcery needs -T generic-m-hosted.ld while ARM's version requires --specs=nano.specs --specs=rdimon.specs to be passed to the linker.

To build and run image with builtin testsuite:

make -f Makefile.test test