[python] Update to MicroPython 1.9.4

python/Makefile

@@ -1,34 +1,14 @@
 SFLAGS += -Ipython/src
 SFLAGS += -Ipython/port
 
-# Native code emition is actually not needed
-# It's only for the @micropython.native decorator
-# which, to be honest, we don't really need
-
-#BUILD = python/build
-
-# How to write this makefile
-# // Copy PY_O_BASENAME from py.mk and add those to objs
-# // Add special-case optimizations
-
-
-# We don't care about emitting multiple archs at once
-# so we'll just build one emitnative.o
-  #emitnx64.o \
-  emitnx86.o \
-  emitnthumb.o \
-  emitnarm.o \
-  emitnxtensa.o \
-  emitinlinextensa.o \
-
-
-
-# FIXME: Use customized optimization level for some files
-
-
+# How to maintain this Makefile
+# - Copy PY_CORE_O_BASENAME from py.mk into py_objs
+# - Copy select PY_EXTMOD_O_BASENAME from py.mk into extmod_objs
+# - Edit special-case workarounds below as needed
 
 py_objs = $(addprefix python/src/py/,\
   mpstate.o \
+  nlr.o \
   nlrx86.o \
   nlrx64.o \
   nlrthumb.o \
@@ -36,6 +16,7 @@ py_objs = $(addprefix python/src/py/,\
   nlrsetjmp.o \
   malloc.o \
   gc.o \
+  pystack.o \
   qstr.o \
   vstr.o \
   mpprint.o \
@@ -50,11 +31,17 @@ py_objs = $(addprefix python/src/py/,\
   emitbc.o \
   asmbase.o \
   asmx64.o \
+  emitnx64.o \
   asmx86.o \
+  emitnx86.o \
   asmthumb.o \
+  emitnthumb.o \
   emitinlinethumb.o \
   asmarm.o \
+  emitnarm.o \
   asmxtensa.o \
+  emitnxtensa.o \
+  emitinlinextensa.o \
   formatfloat.o \
   parsenumbase.o \
   parsenum.o \
@@ -64,6 +51,7 @@ py_objs = $(addprefix python/src/py/,\
   runtime_utils.o \
   scheduler.o \
   nativeglue.o \
+  stackctrl.o \
   argcheck.o \
   warning.o \
   map.o \
@@ -75,6 +63,7 @@ py_objs = $(addprefix python/src/py/,\
   objcell.o \
   objclosure.o \
   objcomplex.o \
+  objdeque.o \
   objdict.o \
   objenumerate.o \
   objexcept.o \
@@ -127,58 +116,15 @@ py_objs = $(addprefix python/src/py/,\
   vm.o \
   bc.o \
   showbc.o \
+  repl.o \
   smallint.o \
   frozenmod.o \
 )
-#  repl.o \
-
-py_objs += python/src/py/emitnative.o
-python/src/py/emitnative.o: CFLAGS += -DN_THUMB
-
 
 extmod_objs += $(addprefix python/src/extmod/,\
   modurandom.o \
 )
 
-# In order to change the name of the micropython module 'urandom' to 'random'
-# (without altering micropython files), we redefined the macro MP_QSTR_urandom
-# by DMP_QSTR_random.
-python/src/py/objmodule.o: SFLAGS += -DMP_QSTR_urandom="MP_QSTR_random"
-python/src/extmod/modurandom.o: SFLAGS += -DMP_QSTR_urandom="MP_QSTR_random"
-
-#extmod_objs += $(addprefix python/src/extmod/,\
-  moductypes.o \
-  modujson.o \
-  modure.o \
-  moduzlib.o \
-  moduheapq.o \
-  modutimeq.o \
-  moduhashlib.o \
-  modubinascii.o \
-  virtpin.o \
-  machine_mem.o \
-  machine_pinbase.o \
-  machine_signal.o \
-  machine_pulse.o \
-  machine_i2c.o \
-  machine_spi.o \
-  modussl_axtls.o \
-  modussl_mbedtls.o \
-  modurandom.o \
-  moduselect.o \
-  modwebsocket.o \
-  modwebrepl.o \
-  modframebuf.o \
-  vfs.o \
-  vfs_reader.o \
-  vfs_fat.o \
-  vfs_fat_diskio.o \
-  vfs_fat_file.o \
-  vfs_fat_misc.o \
-  utime_mphal.o \
-  uos_dupterm.o \
-)
-
 port_objs += $(addprefix python/port/,\
   port.o \
   builtins.o\
@@ -186,21 +132,35 @@ port_objs += $(addprefix python/port/,\
   modkandinsky.o \
   modkandinsky_impl.o \
   mphalport.o \
-  stackctrl.o \
 )
 
-# Reduce optimization for the emscripten platform.
-# With optimization, register and stack variables might be held in a JavaScript
-# local variable, which breaks garbage collection. Indeed, these JavaScript
+# Workarounds
+
+# Rename urandom to random
+# In order to change the name of the micropython module 'urandom' to 'random'
+# (without altering micropython files), we redefined the macro MP_QSTR_urandom
+# by DMP_QSTR_random.
+python/src/py/objmodule.o: SFLAGS += -DMP_QSTR_urandom="MP_QSTR_random"
+python/src/extmod/modurandom.o: SFLAGS += -DMP_QSTR_urandom="MP_QSTR_random"
+
+# Handle upward-growing stack
+# Some platforms such as emscripten have a stack that grows up. We've rewritten
+# the stack control file to handle this case.
+py_objs := $(filter-out python/src/py/stackctrl.o, $(py_objs))
+port_objs += python/port/stackctrl.o
+
+# Fix the GC on emscripten
+# With optimizations, register and stack variables might be held in a JavaScript
+# local variables, which breaks garbage collection. Indeed, these JavaScript
 # variables cannot be marked as root during garbage collection, which means that
 # the heap objects they depend on will likely be destroyed. When the Python
 # computing resumes, if necessary heap objects have been destroyed, the Python
 # program crashes.
-
 ifeq ($(PLATFORM),emscripten)
 $(py_objs): SFLAGS := $(subst -Os,-O0,$(SFLAGS))
 endif
 
+
 # QSTR generation
 
 generated_headers += $(addprefix python/port/genhdr/, qstrdefs.generated.h)